• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A power generating unit, in particular such for a range extender for a motor vehicle, has an internal combustion engine; an electromechanical energy converter on a housing. This housing surrounds at least the internal combustion engine, but preferably the internal combustion engine and the electromechanical energy converter at least partially. The internal combustion engine has at least one air intake device and one exhaust gas outlet device. According to the invention, air enters the housing through a gas inlet device, and the exhaust gases are directed from the exhaust gas outlet device to the exhaust device. To reduce the noise emissions both at the entrance of the air and the exit of the exhaust gases, these gases are passed through a muffler device.
    公开号:AT510759A1
    申请号:T1973/2010
    申请日:2010-11-25
    公开日:2012-06-15
    发明作者:Michael Dipl Ing Fh Steinbauer；Bernhard Dipl Ing Fh Graf；Alfred Dr Rust；Andreas Dr Dolinar
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    56115
    The present invention relates to a power generator, which is particularly suitable for use as a range extender in electrically powered motor vehicles and which preferably has a rotary piston engine and in particular a rotary engine.
    In the development of motor vehicles with electric drive, which for extending the range have a driven by an internal combustion engine generator (range extender), resulting in technical problems that had previously been of little importance in vehicle.
    In motor vehicles, which are driven in a conventional manner by an internal combustion engine, a reciprocating engine is mechanically connected via a transmission with the drive wheels while driving. While driving, the reciprocating engine constantly emits noises and vibrations, which are essentially influenced by the load and in particular by the rotational speed.
    In motor vehicles with electric drive and range extender, the internal combustion engine is usually started and stopped while driving without immediate action of the driver, preferably as a function of the battery state of charge. The drive of the vehicle through the range extender can be considered a special case of a serial hybrid drive. This results in an independent of the driving condition of the motor vehicle running behavior of the internal combustion engine. In such vehicles particularly high demands are made, in particular to the vibration and noise behavior (NVH). The occupants of the motor vehicle perceive it as disturbing if, regardless of the driving condition of the motor vehicle, additional noise and / or vibrations are generated by the range extender.
    From the prior art, it is known to couple an internal combustion engine, in particular a rotary engine with an electromechanical energy converter. From DE 8104378 U1 a combination of an internal combustion engine with an electric generator is known, these being surrounded by a sound-absorbing housing. On the shaft of the generator, an impeller is arranged and surrounded by an air collecting housing.
    DE 2246569 A discloses a sound-absorbing housing for a power generator, which has an upper and a lower part and cooling air ducts. In this case, the air shaft for the fresh air in the lower part of this housing is arranged and the exhaust duct in the upper part.
    The object of the invention is an improved air supply for an internal combustion engine of a power generator, which in particular for use as
    Range extender is used in a motor vehicle to provide the best possible soundproofing.
    This object is achieved by a device according to claim 1, to preferred developments of this device are the subject of the dependent claims.
    A power generating unit, in particular such for a range extender for a motor vehicle, has an internal combustion engine; an electromechanical energy converter on a housing. This housing surrounds at least the internal combustion engine, but preferably the internal combustion engine and the electromechanical energy converter at least partially. The internal combustion engine has at least one air inlet device and one exhaust gas outlet device.
    According to the invention, air enters the housing through a gas inlet device, and the exhaust gases are directed from the exhaust gas outlet device to the exhaust device. To reduce the noise emissions both at the entrance of the air and at the outlet of the exhaust gases, these gases are each passed through a muffler device.
    In the following, the invention will be described with reference to a range extender with a rotary engine in which a substantially triangular Koben rotates on a arranged in a motor housing eccentric shaft. However, the invention is also applicable to a rotary engine with two, four or more piston corners and can generally also in rotary piston engines, which have a concentric in the housing rotating piston used. Furthermore, the invention can also be used in rotary piston engines with two, three or more juxtaposed pistons.
    Under an electrically operated vehicle is to be understood in the context of the invention, a motor vehicle, which is usually driven by at least one electric drive motor. Such an electric drive motor is to be understood in particular as an electromechanical energy converter, wherein electrical power can be converted into mechanical power by an electromechanical energy converter and vice versa. The electrical power provided by the power generator is typically used to extend the range of the electric vehicle. -3- -3-
    ··· «Μ · ·«
    Under a power generator is in the context of the invention means a device in which chemically bound energy, in particular by an exothermic reaction, first in mechanical and then converted into electrical power. To convert the chemically bound energy into mechanical power, in particular an internal combustion engine is used. An internal combustion engine with internal combustion is designed in particular as a reciprocating or rotary piston machine or as a rotary piston engine. To convert this mechanical power into electrical power, the electro-mechanical energy converter is preferably used in generator operation.
    In the sense of the invention, a range extender is to be understood as meaning a device which has at least one internal combustion engine and one energy-mechanical converter. In particular, the internal combustion engine and the mechanical converter have substantially the same nominal power. The range extender is used in particular for extending the range of the electrically operated vehicle. In order to increase the range of the electric vehicle, preferably chemically bound energy is converted into mechanical power in the internal combustion engine and preferably transmitted directly to the electromechanical energy converter. In this electromechanical energy converter, the mechanical power is converted into electrical power and can then be stored in an energy storage device and / or routed to at least one electric drive motor, so that such an electrically operated vehicle has in particular a serial hybrid drive mode. The electromechanical energy converter is in particular directly or indirectly coupled to an output shaft of the internal combustion engine, preferably the output shaft of the internal combustion engine and the drive shaft of the electromechanical energy converter are arranged coaxially to each other, particularly preferably, the electromechanical energy converter and the internal combustion engine a common while for power transmission on.
    A housing is to be understood in the sense of the invention at least one wall, which at least partially surrounds or covers the internal combustion engine and preferably also the electromechanical energy converter. In particular, the housing substantially completely surrounds or covers these two machines. Preferably, the housing forms a substantially closed space, in particular for sound damping, which, however, in particular allows the access of air to the internal combustion engine and the escape of gases, in particular of exhaust gases of the internal combustion engine. Preferably, the housing achieves a reduction of the airborne sound emitted by the power generator to the environment. Further preferably, the housing is provided to prevent environmental influences of the two machines, or their action in particular to reduce this. Preferably, the release of heat, which arises in particular during operation of the internal combustion engine, at areas outside the housing, influenced by the housing, preferably reduced or prevented. ·······················································································.
    In the sense of the invention, an internal combustion engine is to be understood as a device which preferably converts chemically bound energy into mechanical power by means of an exothermic reaction, preferably in an internal combustion. Next, an internal combustion engine is preferably a reciprocating piston engine, preferably a rotary piston engine and particularly preferably a rotary piston engine. Preferably, in a rotary engine, a substantially triangular rotary piston performs a planetary motion in a motor housing. For this purpose, the rotary piston is mounted in particular on an output shaft designed as an eccentric shaft. The eccentric shaft preferably runs in a housing. However, the invention is also applicable to a rotary piston with two, four or more piston corners and can in particular also in rotary piston machines, which have in a housing concentrically rotating rotary piston and reciprocating engines, are used. Furthermore, the invention can also be used in rotary piston engines with two, three or more juxtaposed pistons.
    Under an electromechanical energy converter in the sense of the invention means to understand, which converts mechanical into electrical power and vice versa. Preferably, the electromechanical energy converter has a drive shaft. Further preferably, the electromechanical Energiewandfer is designed as a generator, particularly preferably as internal pole generator.
    In the sense of the invention, an air intake device is to be understood as a device by which, in particular, air from the environment of the housing or air from the interior of the housing enters the internal combustion engine. This air is preferably used for an exothermic reaction within the internal combustion engine. Further preferably, an air inlet device can be closed or opened by a control device, preferably by valves or by a flap device. Preferably, the air is filtered as it passes through the air inlet device.
    In the sense of the invention, an exhaust gas outlet device is to be understood as a device by means of which exhaust gases, which arise in particular during the exothermic reaction within the internal combustion engine, can be discharged therefrom. An exhaust gas outlet device has at least sections of a tubular cross section. The exhaust gases are preferably conducted from the combustion chamber of the internal combustion engine to the exhaust device through the exhaust gas outlet device.
    Under a gas inlet device is to be understood in the context of the invention, a device through which an air flow can enter the housing. In particular, by this gas inlet device noise, which arise within the housing, in particular by the operation of the internal combustion engine, prevented from penetrating out of the housing to the outside or it is at least more difficult after Außendringen. Preferably, by the gas inlet device noises when flowing in the air
    • ·········
    Stream reduced or particularly preferably prevented in the housing. A gas inlet device is to be understood as a recess in a wall of the housing
    In the context of the invention, a gas outlet device is to be understood as meaning a device through which an airflow can escape from the housing. In particular, by this gas outlet device noises which are generated within the housing, in particular by the operation of the internal combustion engine, prevented from penetrating out of this or it is at least difficult after Außenendringen. In particular, a gas outlet device is to be regarded as a recess in a wall of the housing.
    In the context of the invention, a ventilating device is to be understood as meaning a device which is intended to generate an air flow. The fan device generates in particular an air flow from outside the housing into the housing or in particular in the direction of the internal combustion engine.
    In the sense of the invention, an exhaust device is to be understood as a device by means of which the exhaust gases which are produced in the internal combustion engine during operation can be diverted. For this purpose, the exhaust device is connected directly or indirectly with the exhaust gas outlet device. The exhaust gases are in particular cleaned in the exhaust device, and this can also serve as a muffler device.
    In a preferred embodiment, the air is conveyed by a fan device through the gas inlet device, this air flow is used in particular for cooling the internal combustion engine and for heat balance within the housing. By the fan device in particular the cooling air flow can be adapted to the cooling air requirement. The Kühliuftbedarf is not proportional to the speed of the internal combustion engine in the rule. By a decoupled from the speed of the internal combustion engine fan device noise can be avoided by an excessive cooling air flow. Further preferably, the gas inlet device has a silencer device. A muffler device is to be understood as meaning a resonance device, a labyrinth device or an absorption device. In a labyrinth device, the path which the air stream has to travel through the gas inlet device is lengthened by at least one turn, compared to a straight flow, and thus, in particular, the passage of sound waves through the device is influenced, preferably impeded or prevented. In an absorption device, sound energy is broken down in particular by friction of the gas molecules, preferably emitted to a sound-absorbing material. In a resonance device, sound waves are influenced in particular by ge-phase sound waves, preferably reduced.
    Preferably, an air intake device has a bypass device. The air, which is needed in particular for combustion within the internal combustion engine, preferably passes through a bypass device into the air inlet device, and - 4 - * 4 I • · • 4 * in at least one combustion chamber of the internal combustion engine. The bypass device decouples the airflow required for combustion from the cooling air flow. The requirement for these two air streams is usually different. The bypass device can thus be tailored to the needs of the internal combustion engine for combustion by this vote, a particularly low-noise air flow can be achieved.
    Further preferably, the exhaust device is arranged outside the housing and thus can deliver virtually no waste heat to the interior of the housing. Within the housing, in particular, the electromechanical energy converter is arranged, this usually has a dependent on the temperature efficiency. The fact that the exhaust device is arranged outside the housing, is achieved in particular that for cooling the housing interior, a lower cooling air flow is needed, the promotion of this lower cooling air flow is associated with lower noise immissions.
    The housing further preferably has a gas outlet device which essentially surrounds the exhaust gas outlet device in the region of a wall of the housing. The housing preferably has as a component a fiber composite material or another plastic. Plastics usually have a relatively low temperature resistance. As a result of this embodiment of the gas outlet device, the exhaust gas outlet device, which is generally relatively hot, can be largely decoupled from the change in temperature of the housing without the exhaust gas outlet device transmitting vibrations to the housing and thus causing noise.
    In a further preferred embodiment, the air is conveyed by a fan device through the gas inlet device. The air conveyed through the gas inlet device at least partially reaches the air inlet device and at least one combustion chamber of the internal combustion engine. In essence, in this embodiment, only a flow of air is conveyed into the housing, the housing can thus be made simpler sound in particular easier isolated.
    More preferably, the exhaust device is disposed within the housing in this embodiment. As a result, the exhaust device can deliver only minor noise emissions to the environment surrounding the housing, since these sound emissions are additionally attenuated by the housing. When exiting the housing, in particular the exhaust gases mix with cooling air and the housing is less stressed in terms of temperature and can preferably be made simpler and thus in particular better sound-insulated.
    In a further preferred embodiment, the air passes from within the housing into the air inlet device and into at least one combustion chamber of the internal combustion engine. For the air required for combustion in the internal combustion engine
    * 44 444 * 4 44 • 4 4 4 4 4 4 4 4 4 444 4 4 44 4 · · * ···· ♦ 4 4 · 4 4 4 • 44 4 · 44 444 4 44 It is also possible to use a by-pass device on the front Housing arranged. This bypass device preferably conducts air from outside the housing to the air inlet device and into at least one combustion chamber of the internal combustion engine. Preferably, the amount of air or the division between the guided from within the housing and from outside the housing to the internal combustion engine air can be controlled. Further preferably, at least the temperature within the housing is used as a variable for controlling this amount of air or for the division between the air streams. Other variables which can preferably be used for this control task are a temperature of the internal combustion engine, a temperature outside the housing and the state of charge of the energy storage device. By passing air from within the housing to the air inlet device, a vacuum can be generated within the housing. In particular, due to this negative pressure flows through the gas inlet device, an air flow, which preferably serves to cool the interior of the housing and part of the combustion in the internal combustion engine. By this arrangement, in which in the interior of the housing, a suppression can be generated, the air is preferably conveyed by means of a reduced fan device or preferably without fan device into the housing. In particular, by an at least reduced fan device lower noise emissions are generated and the housing can be made more preferably simplified.
    Further preferably, the exhaust device is arranged outside the housing in this embodiment and thus substantially does not contribute to the heating of the interior of the housing. In particular, the air which is sucked within the housing is derived from the housing by the internal combustion engine and the exhaust gas outlet device. Preferably, the housing has no outlet opening for air from the interior of the housing. Further preferably, the exhaust gas outlet device can be flowed around by a temperature control medium at least in the region in which it passes through a wall of the housing from the inside to the outside. Preferably, the exhaust gas outlet device is at least partially flowed around by a liquid Kühlmedlum, in particular of cooling water, preferably cooling water from a cooling water circuit of the power generation unit.
    In a preferred embodiment, the air inlet device has a silencer device. Preferably, this muffler device is based on the principle of resonance sound damping and is in particular a resonance device. In this case, the principle of resonance sound damping means that a device radiates or generates at least one essentially antiphase sound wave to at least one sound wave of the noise source. As a source of noise in particular the internal combustion engine is to be understood.
    Preferably, a device for resonance damping on a spring and connected to this spring, oscillatory mass. A spring may preferably be designed as -8- * * · · «« ··· ♦ * ·· * · · · · · · · · φ · ♦ · | A component made of an elastic material, in particular made of spring steel or of a plastic, more preferably a spring can be represented by a device through which a magnetic or electric current flows. Particularly preferably, a spring can be represented by a gaseous material, in particular an air spring. An oscillatory mass can be represented in particular by a solid body with a defined volume. Preferably, a mass is represented by a gaseous material, preferably by air, this gas occupying a predefined volume.
    Preferably, a resonance device has a cavity resonator, particularly preferably a Helmholtz resonator. Further preferably, a resonance device has a preferably unilaterally open, preferably tubular cavity. In particular, the cavity is open in the direction of the air inlet device, such a resonant device preferably forms a volume communicating with the air inlet device. Particularly preferably, at least the length of this cavity is tuned to the wavelength of the noise source to be vaporized. Preferably, this length is substantially one quarter of the wavelength of a first, second, third or fourth order of the sound emission of the noise source, in particular of the internal combustion engine. The resonance device is particularly preferably a quarter-wave resonator. Further preferably, the resonance device can be understood as a loudspeaker device which emits sound waves essentially in phase opposition to the sound emission of the internal combustion engine. The internal combustion engine of a power generator is operated in contrast to an internal combustion engine in a conventional motor vehicle at a few discrete speed levels and thus emits substantially only noise with a few discrete orders, so that a resonant device leads to a particularly good sound attenuation.
    In a preferred embodiment, the muffler device has a resonance device with a plurality of resonators. Preferably, at least two of these resonators have different vibration behavior, more preferably 3, 4, 5 or more resonators have a different vibration behavior. It has been found through measurements that a considerable reduction in noise can be achieved if at least the first, second and third order sound waves of the noise source are damped; by a resonant device with several different vibration behavior, these are dargesteilt particular by different resonators, thus a good noise attenuation can be achieved.
    In a particularly preferred embodiment, the air inlet device, in particular for sound attenuation, a resonance device with three resonators and thus three different vibration behavior. Preferably, each of these resonators has its own gas volume. These gas volumes are filled in particular with air. The gas volumes serve in particular as a spring device for the resonance devices. The tuning to different frequencies of the resonators happens, preferably.... ♦ 4 9 # · · · ♦ 4 4 4 4 «· · t 4 ·« · «4 ·· * by means of different masses with which the gas volume communicates. Such different masses can preferably be achieved by different pipe diameters or preferably by different pipe lengths, wherein the gas volume communicates by means of such a pipe with the gas stream to be damped, in particular air stream. Further preferably, the tuning of the resonance device to different frequencies by a change in the gas volume, in particular the size of the gas volume. Preferably, the resonators are arranged at different locations of the air inlet device, more preferably, the resonator, which has the largest gas volume, arranged on one of the resonators with a smaller gas volume substantially opposite side of the air inlet device. By dividing the resonance device on substantially opposite side of the air inlet device, a particularly good tuning of the resonance means to the noise source, in particular to the internal combustion engine, and a compact design of the air inlet device can be achieved.
    In a particularly preferred embodiment, the resonator of the resonance device, which is provided to dampen the lowest frequency of the noise source, in particular of the internal combustion engine, has the largest gas volume of the resonator device. More preferably, the lowest frequency which is attenuated by this one resonance device is the first order frequency with which in particular the air in the air inlet device oscillates. Further preferably, higher-order frequencies, in particular 2nd and 3rd order, are attenuated in each case by resonators of the resonance device. Because the resonators each have their own gas volumes, the resonance device can be tuned particularly well to the noise source.
    In a further preferred embodiment, the air inlet device is arranged outside the housing. The performance of an internal combustion engine usually depends on the temperature of the air which is conveyed into the air intake device. When the air inlet device is located outside the housing, the air on its way to the internal combustion engine heats up less and the internal combustion engine can be operated with better efficiency and lower sheep emissions.
    In a preferred embodiment, the air inlet device is substantially rigidly connected to the housing. Preferably, the air inlet device is connected to the housing material, positive or non-positive, preferably screwed, riveted, welded, clipped or clamped. By a rigid connection, the natural frequency of the housing, in particular changed by the additional unsprung tethered mass of the air inlet device and thus the sound radiation of the housing can be reduced.
    In a further preferred embodiment, the air inlet device is connected substantially swinging with the housing. Preferably, the air inlet device is connected to a vibration damping device to the housing. A vibration damping device preferably has at least one damper element, particularly preferably a damper element with internal damping, such as an elastomer element or an element made of another elastic plastic. Further preferably, a vibration damping device also have a Sprial-, plate leaf or bar spring made of a metallic material. Particularly preferably, a swinging suspension of the air inlet device can be achieved in that a rod-shaped element, engages in a substantially annular, soft elastic element. In this case, this rod-shaped element is preferably integrally formed on the air inlet device and the soft elastic element is connected to the housing or other supporting structure, or vice versa. By a swinging connection of the air inlet device to the housing can be achieved that the air inlet device is preferably less or preferably not excited by the vibrations in particular of the housing or the internal combustion engine and thus emits less Schaliemissionen.
    In a preferred embodiment, the internal combustion engine is a rotary piston machine, in particular a rotary piston engine. Compared with a conventional reciprocating engine, a rotary piston engine with the same power in particular higher-frequency noise emissions and the housing can better attenuate these higher-frequency vibrations at lower own mass.
    Further features, advantages and embodiments of the present invention will become apparent from the following description of the accompanying figures. Showing:
    1: power generator with housing, exhaust device outside,
    Fig.2: Generating unit with housing, exhaust device within,
    3: power generation unit, water-cooled exhaust gas outlet device,
    4 shows different variants of resonators for sound attenuation,
    Fig.5: Variants of the suspension of the air intake device,
    Fig.6: an air inlet device. 1 shows a power generator 2, which is arranged in a housing 1 is shown. The housing 1 has a gas inlet device 14 and a gas outlet device 7. The internal combustion air is supplied to the internal combustion engine, which is a part of the electric generator 2, through the air intake device 11 having a by-pass device 11a. The air intake device has a resonance device 17, in particular for soundproofing. The air for the cooling within the housing 1, in particular for the cooling of the power generation unit 2, is conducted through a gas inlet device 14 into the housing 1. This air flow is regulated in particular by a fan device 5 when entering the housing 1. Through the gas outlet means 14, this air exits the housing 1 again. The
    Gas inlet device 14 has a labyrinth device 20, the gas outlet device 7 has a muffler device, likewise a labyrinth device 20. The exhaust device 8 is arranged outside of the housing 1. The exhaust gases from the internal combustion engine are passed through the exhaust gas outlet 12 to the exhaust device 8. In the region in which it passes through the wall of the housing 1, the exhaust gas outlet device 12 is surrounded by a gas outlet device 7. The air flow flowing through this gas outlet device 7 surrounds the hot exhaust gas outlet device 12. The wall is formed by the arrangement of the gas outlet device 7 of the housing 1 thermally largely isolated from the exhaust gas outlet 12.
    2 shows a power generator 2, which is arranged in a housing 1, wherein in the housing 1 in addition to the air inlet device 11 and an exhaust gas outlet 12 and an exhaust device 8 shown. By means of a fan device 5, an air flow is conveyed into the housing 1 by the gas inlet device 14. The air inlet device 11 is located in the interior of the housing 1. The opening of the air inlet device 11 through which the air for combustion within the internal combustion engine of the power generator 2 occurs, is in the immediate vicinity of the gas inlet device 14. The gas inlet device 14 has a labyrinth device 20 on. The air intake device 11 has a resonance device 17. Exhaust gases exit from the exhaust device 8 still within the housing 1, wherein this outlet is in the immediate vicinity of the gas outlet device 7. The exhaust gases thus flow directly out of the exhaust device 8 and out of the housing 1 through the gas outlet device 7. The gas outlet device 7 has a silencer device, in this embodiment a labyrinth device 20.
    3 shows a power generator 2, which is arranged in a housing 1, wherein in the housing 1 in addition to the power generator 2, an air inlet device 11 is arranged, this has a resonance device 17. The exhaust device 8 is arranged outside of the housing 1. The exhaust gas outlet 12 directs the exhaust gases from the internal combustion engine through a wall of the housing 1 in the exhaust device 8. When passing through this wall of the housing 1, the exhaust gas outlet 12 is surrounded by a temperature control, in particular cooling water of the power generator 2 and thereby cooled. The housing 1 has no gas outlet device. Into the air intake device 11, air may enter from within the housing 1. Through this air inlet within the housing 1, a negative pressure can be generated in the housing, through this suppression, air is conveyed from outside the housing through the gas inlet device 14 into the housing 1. The gas inlet device 14 has a labyrinth device 20. The air inlet device 11, in addition to this air inlet possibility within the housing 1 on a bypass device 11a. By means of this bypass device 11a, air from outside the housing 1 can be used for combustion in the internal combustion engine.
    FIG. 4 shows various variants of possible resonance device for the gas inlet device, gas outlet device and preferably for the air inlet and exhaust device, wherein these resonance devices each have three resonators.
    FIG. 4 a) shows a resonance device with three different so-called quarter wave resonators. In this type of resonator, the length L1-L3 is tuned to the respective sound frequency to be damped. It should be understood that the lengths L1-L3 are a quarter of the wavelength of the respective sound frequency to be damped. The gas flow 15 to be damped, in the case of the air inlet device, this is an air flow, flows through the device in the direction of the arrow and thereby causes each standing waves in the quarter-wave resonators.
    FIG. 4b) shows a resonance device with three different mechanical resonators, this device is flowed through by a gas flow 15. These resonators have at least one spring with the spring stiffness C and different masses m1-m3. The resonators shown are tunable by these different masses m1-m3 to different sound frequencies to be damped. It is also conceivable to vary the spring stiffness of the individual resonator for frequency tuning with several equally large masses.
    FIG. 4c) shows a resonance device with three different so-called Helmholtz resonators. This resonance device is traversed by a gas flow 15, in particular an air flow. These resonators have a spring with the spring stiffness C, wherein this spring is formed by a gas in a cavity having an opening, in particular amount of air. This spring cooperates with a mass, which mass is also formed by a certain amount of gas, in particular amount of air. This mass is essentially formed by a gas contained in a tube-like device. This mass is on the one hand with the spring and on the other hand with the gas stream to be damped 15 in conjunction, thus communicating the spring with the mass (m1-m3) and the gas stream to be vaporized 15. For tuning the Helmholtz resonator on the different Frequencies may be the mass m1-m3, varied by a different design of the tubular device, or the spring stiffness can be influenced by a variation of the amount of gas.
    In Figure 5 different ways of suspending an air inlet device 11 in the housing 1 are shown. FIG. 5 a shows a swinging suspension of the air inlet device 11. In this case, the air inlet device 11 is connected by means of several soft elastic elements 16 to the housing 1. The internal combustion engine of the power generator 2 is connected by means of a connecting device 13 with the air inlet device. This connecting device allows mobility between the air intake device 11 and the internal combustion engine. The Elements ·· ···· ·
    16 for connecting the air inlet device 11 to the housing 1, in this embodiment, an elastomer as a component or at least one deformable element. The air intake device 11 is in particular movable by this type of suspension and with respect to the power generator 2 in a certain range. As a result, the air intake device 11 is essentially decoupled from the power generation unit 2 in terms of vibration technology. On the other air duct of the air intake device 11, i. Whether it has a bypass device or whether the air inside or outside the housing 1 in this entrance, it does not matter in the suspension of the air inlet device 11.
    In Figure 5b) is a rigid suspension of the air inlet device 11 relative to the housing 1 is shown. In this case, the air inlet device 11 is connected by means of at least one suspension device 18 with the housing 1. The air inlet device 11 moves with such a rigid connection to the housing 1, thus a particularly simple air flow is achieved because there is no significant displacement of the air inlet device 11 relative to the housing 1. The power generator 2 is usually suspended in the housing 1. By a rigid suspension of the air inlet device 11 and the possible displacement between the power generator 2 and the air inlet device 11 is reduced. For a simplified connection of the air inlet device 11 to the power generator 2 is possible.
    FIG. 6 shows an air inlet device 11, wherein an air flow 3 enters the air inlet device 11 from below and exits in the illustration at the top in the direction of the internal combustion engine (not shown), the air inlet device 11 can be connected by means of a connecting device 13 with the internal combustion engine. The air inlet device 11 has at least one rod-shaped element 19 for attachment in the housing (not shown). This element 19 engages for attachment in a flexible element (not shown). The air inlet device 11 has a device for a first gas volume 9, which are in communication with two resonance devices (not shown). The air inlet device 11 also has a device for a second gas volume 10, which communicates with a third resonance means (not shown) in connection. In this case, this third resonance means is provided in particular for damping vibrations at low frequency, preferably the first-order vibrations of the air sucked in by the internal combustion engine. The resonance means thus preferably lead to a reduction of the intake noise of the internal combustion engine and further preferably to an improvement of the filling of the combustion chambers with air.
    It should be noted that a combination of devices and components, which are shown here in separate, different figures, is possible. f * -: ♦ + · ♦ ··· Trademarks: 1 Housing 2 Generating unit 3 Air flow 4 Covering device 5 Ventilation device 6 Output shaft 7 Gas outlet device 8 Exhaust device 9 First gas volume device 10 Second gas volume device 11 Air inlet device 11a Bypass device 12 Exhaust gas outlet device 13 Connecting device 14 Gas inlet device 15 Gas flow 16 Soft elastic element 17 Resonance device 18 Suspension device 19 Bar-shaped element 20
    labyrinth facility
    权利要求:
    Claims (14)
    [1]
    1. Generating unit (2), in particular range extender for a motor vehicle, comprising an internal combustion engine, an electromechanical energy converter and - 'a housing (1) which surrounds them at least partially and wherein the internal combustion engine at least one Air inlet device (11) and - an exhaust gas outlet device (12), characterized in that an air flow (3) by a gas inlet device (14) in the housing (1) can occur and / tiass exhaust gases (3) from the exhaust gas outlet device (12 ) to an exhaust device (8), wcTuncl / that the gas inlet device (14) and the exhaust device (8) have a muffler device.
    [2]
    Second power generating unit (2) according to claim 1, characterized in that air from a fan device (5) through the gas inlet device (14) is promoted, that air passes through a bypass device (11 a) in the air inlet device (11), in that the exhaust device (8) is arranged outside the housing (1) and in that the housing (1) has a gas outlet device (7) which surrounds an exhaust gas outlet device (12) in the region of a wall of the housing (1).
    [3]
    3. Generating unit (2) according to claim 1, characterized in that air from a fan device (5) through the gas inlet device (14) is conveyed that this air at least partially enters the air inlet device (11) that the exhaust device (8 ) Within the housing (1) is arranged uncj / that the exhaust gas through a gas outlet means (7) from the housing (1) exits.
    [4]
    4. Generating unit (2) according to claim 1, characterized in that air from inside the housing (1) in the air inlet device (11) passes, or by the bypass means (11 a) from outside the housing (1), that air through the gas inlet means (14) enters the housing (1), the exhaust means (8) being located outside the housing (1) and the exhaust outlet means (12) at least in the area where it passes through a wall of the housing (1) from inside to outside occurs rvon a tempering medium is flowed around. # * · «··· * ·


    [5]
    5. Generating unit (2) according to claim 4, characterized in that the exhaust gas outlet device (12) is at least partially flowed around by a liquid cooling medium, in particular of cooling water, in particular from a cooling water circuit of the power generation unit (2).
    [6]
    6. Generating unit (2) according to one of the preceding claims, characterized in that the air inlet device (11) has a muffler device.
    [7]
    7. Generating unit (2) according to claim 6, characterized in that the silencer device comprises a resonant device (17), wherein said resonant device is selected from a group comprising spring-mass systems, cavity resonators, quarter-wave resonators.
    [8]
    8. Generating unit (2) according to any one of claims 6 or 7, characterized in that the muffler device has a resonance device (17) with different resonators and different vibration behavior, in particular with 2, 3 or 4 different vibration behavior.
    [9]
    9. Generating unit (2) according to one of claims 6 to 8, characterized in that the air inlet device (11) has a resonant device with three resonators, each resonator having its own gas volume, said gas volumes serve in particular as a spring for these resonant devices.
    [10]
    10. Generating unit (2) according to one of the preceding claims, characterized in that the air inlet device (11) outside the housing (1) is arranged.
    [11]
    11. Generating unit (2) according to one of the preceding claims, characterized in that the air inlet device (11) by means of a connecting device (13) is connectable to the internal combustion engine.
    [12]
    12. Generating unit (2) according to one of the preceding claims, characterized in that the air inlet device (11) is substantially rigidly connected to the housing (1). • Φ

    ♦ * · · · · φ * · • *
    [13]
    13. Generating unit (2) according to one of the preceding claims, characterized in that the air inlet device (11) is connected substantially vibratory with the housing (1).
    [14]
    14. Generating unit (2) according to one of the preceding claims, characterized in that the internal combustion engine (2) is a rotary piston machine, in particular a rotary piston engine. 2010 11 25

    A-11S0 Wt * n, Mariahilfer aortel imi Tel .; Mi 1) m W IM M) l) * 3 «133 Dipl.-Ing. ernetl:
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    同族专利:
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20030121722A1|2002-01-02|2003-07-03|Advanced Car Specialties Limited|Exhaust gas muffler|
    US20030223919A1|2002-05-30|2003-12-04|Sehoon Kwak|Integrated thermoelectric power generator and catalytic converter|
    US20090266632A1|2008-04-25|2009-10-29|Hill Andrew D|Air cooling system for electric drive machine|
    DE2246569A1|1972-09-22|1974-04-11|Eisemann Gmbh|CONTAINER FOR NOISE INSULATION FROM GENERATORS|
    DE8104378U1|1981-02-17|1981-08-13|Fischer, Ludwig, 8399 Neuhaus|POWER GENERATION DEVICE|
    JP3531716B2|1998-04-17|2004-05-31|本田技研工業株式会社|Engine driven work machine|
    CN101761732B|2008-12-24|2013-05-08|同方威视技术股份有限公司|Sound insulation system for noise source|
    CN201513235U|2009-09-18|2010-06-23|广东康菱动力科技有限公司|Noise-proof unit of vehicle-mounted generator|RU2603502C2|2014-11-24|2016-11-27|Евгений Александрович Здор|Method of exhaust gas noise reduction in a closed pipeline of internal combustion engines and a device for its implementation|
    CN109955705A|2017-12-22|2019-07-02|武汉比亚迪汽车有限公司|A kind of plug-in hybrid device arragement construction and vehicle|
    法律状态:
    优先权:
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    ATA1973/2010A|AT510759B1|2010-11-25|2010-11-25|POWER GENERATOR BOX WITH HOUSING|ATA1973/2010A| AT510759B1|2010-11-25|2010-11-25|POWER GENERATOR BOX WITH HOUSING|
    DE102011119196A| DE102011119196A1|2010-11-25|2011-11-22|Power generation apparatus i.e. range extender, for motor vehicle i.e. electrically operated vehicle, has gas entry and gas exhaust devices comprising silencer device, where exhaust gas is guided from outlet device to exhaust device|
    CN201110381958.6A| CN102477898B|2010-11-25|2011-11-25|With the generator set of housing|
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