• 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:
    The invention relates to a power generator, which is particularly suitable for use as a range extender in an electrically operated motor vehicle (electric vehicle). In this power generation unit, an internal combustion engine and an electromechanical energy converter are at least partially surrounded by a housing. This housing in particular reduces noise emissions to the environment. The internal combustion engine of the power generator has at least one air inlet device, an exhaust gas outlet device and an output shaft. In the housing, an air flow through an air flow inlet device occur, this air flow can be used to cool the internal combustion engine. The air flow enters the housing substantially laterally and flows to the internal combustion engine at a predetermined angle a to the output shaft.
    公开号:AT510758A1
    申请号:T1972/2010
    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:

    -1 - -1 -
    »· • • Μ 56114
    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. By this not directly dependent on the driving condition of the motor vehicle running behavior of the internal combustion engine particularly high demands, in particular on the vibration ons and noise behavior (NVH) are made. The occupants of the motor vehicle perceive it as annoying if, regardless of the driving condition of the motor vehicle, additional noise and / or vibrations are generated by the range extender device.
    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 9100340 U1 a combination of an internal combustion engine with an electric generator is known, these being surrounded by a sound-absorbing housing and this housing is traversed by water.
    DE 2346820 A1 discloses an assembly which has an internal combustion engine and a generator and is arranged in a capsule. In this case, the cooling air, which is conveyed by a blower into the capsule, flows as it leaves the latter at an exhaust pipe arranged inside the capsule in a separate box and cools the latter off.
    The object of the invention is an improved housing for a power generator, which is used in particular for use as a range extender in a motor vehicle to provide. • * · e -2- • * 9 9 # · ♦ 19 «· | · «999 * 9 <
    This object is achieved by a device according to claim 1, to preferred developments of this device are the subject of the dependent claims.
    The invention relates to a power generator, which is particularly suitable for use as a range extender in an electrically operated motor vehicle (electric vehicle). In this power generation unit, an internal combustion engine and an electromechanical energy converter are at least partially surrounded by a housing. This housing in particular reduces noise emissions to the environment. The internal combustion engine of the power generator has at least one air inlet device, an exhaust gas outlet device and an output shaft. In the housing, an air flow through an air flow inlet device occur, this air flow can be used to cool the internal combustion engine. The air flow occurs substantially laterally into the housing and flows in the internal combustion engine at a predetermined angle α to the output shaft.
    In the following the invention will be described with reference to a range extender with a rotary engine, in which a substantially triangular piston rotates on an eccentric shaft arranged in a motor housing. 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.
    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 electromechanical energy converter is preferably used in generator operation. * * Λ 9 -3- m · · ** ·· * · 4 · m »· 4 4 φ * f ·· ** · # *» * 4 *
    A range extender in the sense of the invention means a device which comprises at least one internal combustion engine and one electromechanical energy converter. In particular, the internal combustion engine and the electromechanical energy converter have essentially the same nominal power. The range extender is used in particular for extending the range of the electrically operated vehicle. To extend 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 then stored preferably in an energy storage device and / or passed to at least one electric drive motor. Further preferably, the electromechanical energy converter is 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, more preferably, the electromechanical energy converter and the internal combustion engine on a common shaft for power transmission.
    In the context of the invention, a housing means 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 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 in the amount of air leak emitted by the power generator to the environment. Further preferably, the housing is intended 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. For the entry of an air flow, the housing in particular has an air flow inlet device. Exhaust gases, which arise during operation of the internal combustion engine, can escape in particular by at least one exhaust device from the housing.
    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 is to understand in sense of the invention, a device which converts mechanical into electrical power and vice versa. Preferably, the electromechanical energy converter has a drive shaft. Further preferably, the electromechanical energy converter 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. Preferably, an air inlet device is designed as a recess in a combustion chamber wall. Further preferably, an air inlet device can be closed or opened by a control device. The air inlet through the air inlet device is preferably controlled by the piston of the internal combustion engine, in particular by edges of the piston.
    In the context of the invention, an exhaust gas outlet device is to be understood as meaning a device by means of which exhaust gases, which arise in particular in the case of an exothermic reaction, in particular within the internal combustion engine, can escape from the same. Preferably, an exhaust gas outlet device is designed as a recess in a combustion chamber wall. Further preferably, an exhaust gas outlet device can be closed or opened by a control device, preferably by valves. The exhaust gas outlet through the exhaust gas outlet device can be controlled in particular by the piston of the internal combustion engine.
    In the sense of the invention, an output shaft of the internal combustion engine is understood to mean a shaft of the internal combustion engine to which the mechanical power generated during the exothermic reaction is at least partially transmitted. The mechanical power can be removed in the form of a rotational speed and a torque from the output shaft. Preferably, the output shaft is formed as an eccentric shaft. Further preferably, a piston is mounted on the output shaft, preferably this piston is roller-mounted, particularly preferably by means of a needle bearing. Preferably, this output shaft is mounted in the housing of the internal combustion engine, preferably roller bearings. -5- -5- &phis; &phis; &peseta; &phis; * &phis; * &phis; * &phis; * &phis; * &phis; * &phis; * &phis; * &phis; * &phis; * &phis; * &phis; ΦφΦ ΦΦΦΦ ΦΦΦ Φ Φ
    Under an air flow 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 air flow inlet device noises that 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 difficult after Außenendringen. Preferably, noises are reduced or particularly preferably prevented by the air flow inlet device when the air flow flows into the housing.
    In the sense of the invention, an air-flow outlet device is to be understood as a device through which an airflow can escape from the housing. Preferably, noise which is generated within the housing, in particular by the operation of the internal combustion engine, is prevented from penetrating outward through this airflow outlet device, or it is at least made more difficult after external penetration. Preferably, an air flow outlet device is arranged so that it surrounds an exhaust device at least partially, further preferably, the air flow outlet device is arranged outside the housing, thus allowing a simplified housing design.
    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. In particular, the fan device generates an air flow from outside the housing into the housing or in the direction of the internal combustion engine.
    Under an exhaust device in the context of the invention means to understand, by which the exhaust gases that arise in the internal combustion engine during operation, can be derived from the housing. For this purpose, the exhaust device is connected directly or indirectly with the exhaust gas outlet device. Preferably, the exhaust gases are cleaned in the exhaust device, more preferably, the exhaust device serves as a muffler for the exhaust gases. In a preferred embodiment, at least part of an air flow is conveyed through an air flow inlet device by means of a fan device into the housing. By means of a fan device, the air flow conveyed into the housing can be regulated in particular as required. The noise emission is thus at least reduced, thus providing an improved power generation unit. In a preferred embodiment, this fan device is covered by a covering device. Such a cover device is preferably designed as a cap, particularly preferably as a cap open at least on one side. Further preferably, the covering device may have a mushroom-like shape. By such a covering device, in particular, the escape of airborne sound from the housing is at least made more difficult, and thus an improved power generation unit ready. ···· -6-
    In a further preferred embodiment, air enters through the air inlet device of the internal combustion engine into this, wherein said air is sucked from the interior of the housing in the internal combustion engine. By sucking in the air for the exothermic reaction, in particular an air flow is achieved by the air flow inlet device without a fan device, thus the fan device can preferably be dimensioned smaller or preferably this can be omitted entirely. By a non-existent or by a reduced fan device in particular less noise emissions are generated in the air inlet into the housing and thus provided an improved power generation unit.
    In a preferred embodiment, the air flow inlet device at least partially has a substantially tubular design. In this case, a tubular design is preferably to be understood as meaning that the air flow which enters the housing is enclosed at least in regions by a wall, preferably completely surrounded by a wall. By means of a tubular design of the air flow inlet device, the air flow can be specifically directed upon entry into the housing, thus avoiding unnecessary noise emissions. A tubular design of the air flow inlet device thus provides an improved power generation unit.
    In a preferred embodiment, the airflow inlet means comprises a plurality of airflow diverters. Under an air flow deflection device is preferably a pipe bend or an air guide element, which is arranged in particular within a pipe to understand. Preferably, the air flow is deflected at two air-flow deflection devices in each case by an angle of at least 30 ° and at most 120e. Further preferably, the air flow is deflected by a further air flow deflecting device by an angle of at least 60 ° and at most 210 °. Preferably, a siphon-like course of the air flow on entry into the housing can be achieved by air flow deflection devices. In particular, by air flow deflection devices, the leakage of sound emissions from the housing is at least made difficult or preferably prevented and thus provided an improved power generation units.
    In a preferred embodiment, the internal combustion engine has an ignition device. In this case, under an ignition device, in particular, a glow device, as it is preferably used in the use of diesel fuels to understand, preferably is to be understood as including a spark plug. Preferably, the internal combustion engine is aligned with its ignition device in the direction of the air flow inlet device, preferably so that the incoming air flow flows to the internal combustion engine essentially in the region of the ignition device. In the area of the ignition device, increased noise emissions and / or an increased temperature of the internal combustion engine can open up. If the internal combustion engine is affected by an air flow in the area of its ignition device, then an air cushion in this area may be present, or an air flow may occur In particular, these can influence the temperature of the internal combustion engine in this area, preferably reduce it, and thus provide an improved power generation unit.
    Other features, advantages and embodiments of the present invention will become apparent from the following description of the accompanying drawings. Showing:
    1 shows a section through a power generator with an air flow inlet device and an air flow outlet device,
    2 shows a section through the Trochoidenbereich a rotary piston combustion engine with air inlet device, exhaust gas outlet device and ignition device,
    3: different versions of air flow inlet devices,
    4 shows a view from above of the power generator in section.
    FIG. 1 shows a section through the power generation unit. In this case, the air flow 3a enters the housing 1 laterally through a cover device 4 through a fan device 5. In the housing 1, the internal combustion engine 2 is arranged so that it (not dargestelit) is flowed through the air flow 3a in the region of its ignition device. In this embodiment, a rotary piston internal combustion engine is shown with a rotary piston 9. The output shaft 6 lies at a right angle to the air flow 3a. The air flow 3 essentially flows through the housing 1 before it exits through the air flow outlet device 7 and out of the housing 1. The air flow outlet device 7 is arranged outside the housing 1, but is in gas-tight connection therewith. The air flow outlet device 7 has a muffler device 17. On the one hand, the noise of the outflowing air stream 3 is damped by the muffler device 17, and on the other hand, sound emissions, in particular of the internal combustion engine 2, are made more difficult to escape from the housing 2. The necessary for the operation of the internal combustion engine 2 air enters through the Lufteintrittsein-device 11 in this. Exhaust gases, which arise during the combustion process within the internal combustion engine 2, pass through the exhaust gas outlet device 12 from the internal combustion engine 2 and are discharged through the exhaust device 8 from the housing 1. The exhaust device 8 is surrounded by the air flow outlet device 7. This embodiment of the exhaust device 8 and the air flow outlet device 7 on the one hand, a thermal insulation of the particular after prolonged operation of the internal combustion engine 2 hot exhaust device 8, achieved with respect to the housing 1 and on the other hand is made possible by the forming air jacket to the exhaust device 8, an additional noise attenuation.
    FIG. 2 shows a schematic section through the trochoid region of a rotary piston engine. In this case, the triangular-shaped rotary piston 9 within the Trochoidenlauf-Bahn 10 can be seen. The trochoidal track 10 is defined by the air inlet means 11 and 8...... • ß Φ * · 9 · M ······ * M * * * the exhaust gas outlet 12 and by the ignition device 13 in the region interrupted this section. The air flow 3 flows into the internal combustion engine 2 laterally in the region of the ignition device 13, in particular in the region of the interruptions of Trochoideniaufbahn 10 amplified sound emissions can occur.
    FIG. 3 diagrammatically shows two possible embodiments of a multiplicity of possible configurations for the air flow inlet device 14. In FIG. 3 a), an air flow inlet device 14 with two air flow deflection devices 15 is represented, through which the air flow 3 passes. This air flow inlet device 14 has a tubular design. The air flow 3 is deflected by these two air flow deflection means 15 staircase-like, in particular by this staircase deflection of the air flow 2, the passage of sound emissions from the housing to the outside through the air flow inlet device 14 is more difficult.
    In Figure 3b) an air flow inlet device 14 with three air flow deflection devices 15 is shown. In this embodiment, the air flow 3 enters the air flow inlet device 14 at substantially the same angle as it also exits the air flow inlet device again. By the air flow deflection means 15 of the air flow 3 is deflected several times, and thus the passage of sound emissions from the housing 1 to the outside through the air flow inlet device 14 difficult.
    FIG. 4 shows a schematic representation of the power generation unit from above in section. It can be seen how an air flow 3a enters the housing 1 through an air flow inlet device 14. The air flow 3a flows while the internal combustion engine 2 at the angle α. In this case, α is essentially a right angle. The angle α lies between the output shaft 6 of the internal combustion engine 2 and the flow direction of the air flow 3a, as it flows substantially to the internal combustion engine 2. The output shaft 6 of the internal combustion engine 2 is at the same time the drive shaft of the electromechanical energy converter 16. The internal combustion engine 2 derives the resulting during the combustion of the fuel exhaust gases through the exhaust device 8 from the housing 1. Between the housing 1 and the exhaust device 8, the air flow 3 flows out of the housing 1. This air flow 3 flows through an air flow outlet device 7. The air flow outlet device 7 has a silencer device 17. By this muffler device 17 is not only the noise of the exiting air stream 3 is attenuated, it will also reduce the passing of the housing 1 sound emission of the internal combustion engine 2 is reduced. -9- ···· Ι · ···················································································································
    Reference numeral: 1 housing 2 internal combustion engine 3 air flow 4 cover device 5 fan device 6 output shaft 7 air flow outlet device 8 exhaust device 9 rotary piston 10 Trochoidenlaufbahn 11 air inlet 12 exhaust gas outlet 13 igniter 14 air flow inlet device 15 air flow diverter 16 electromechanical energy converter 17 silencer device
    权利要求:
    Claims (12)
    [1]
    1. Generating unit, in particular suitable for use as a range extender in an electrically operated motor vehicle, wherein in this power generating unit, an internal combustion engine (2) and an electromechanical energy converter (16) at least partially surrounded by a housing (1) and said internal combustion engine (2) at least one air inlet device (11), an exhaust gas outlet device (12) and an output shaft (6) ^ characterized characterized in that an air flow (3) can enter the housing (1) through an air flow inlet device (14), and that this air flow (3) drives the internal combustion engine (2) essentially laterally and at a predeterminable angle α to its output shaft (3). 6) flows.
    [2]
    Second power generating unit according to claim 1, characterized in that at least a part of the air flow (3) by a fan device (5) in the housing (1) is conveyed.
    [3]
    3. Generator according to claim 2, characterized in that the fan device (5) by a covering device (4) is covered.
    [4]
    4. Generating unit according to one of the preceding claims, characterized in that the air flow (3) at least partially in the region of an exhaust device (8) by an air flow outlet means (7) from the housing (1) emerges, wherein the air flow outlet means (7) surrounds the exhaust device (8) at least partially.
    [5]
    5. Generating unit according to one of the preceding claims, characterized in that the air flow outlet means (7) has a silencer means (17) aulweist and in particular outside of the housing (1) is arranged.
    [6]
    6. Generating unit according to one of the preceding claims, characterized in that the air inlet device (11) of the internal combustion engine (2) at least partially sucks air from the interior of the housing (1), and that this air at least partially by the exhaust gas outlet device (8) from the Internal combustion engine (2) and through the exhaust device (7) from the housing (1) emerges.
    [7]
    7. Generating unit according to one of the preceding claims, characterized in that the air flow inlet device (14) at least partially has a substantially tubular configuration.
    [8]
    8. Generating unit according to claim 7, characterized in that the air flow inlet device (14) has a plurality of air flow deflection means (15). ··· ··· · Itlt -11 - ·· * ··· · Itlt -11 - ♦ • »» ·· ## * ··· · * ·
    [9]
    9. Generating unit according to claim 7 or 8, characterized in that the air flow (3) passes through a plurality of air flow deflection means (15) and exits at the same angle from the air flow inlet means (14) as it enters this.
    [10]
    10. Generating unit according to one of the preceding claims, characterized in that the air flow inlet device (14) comprises a muffler device.
    [11]
    11. Generating unit according to one of the preceding claims, characterized in that the internal combustion engine (2) has an ignition device (13) and that the internal combustion engine (2) with the ignition device (13) in the direction of the air flow inlet device (14) is aligned.
    [12]
    12. Generating unit 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

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    同族专利:
    公开号 | 公开日
    DE102011119195A1|2012-05-31|
    AT510758B1|2014-04-15|
    CN102477899A|2012-05-30|
    CN102477899B|2016-08-03|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2009173196A|2008-01-25|2009-08-06|Toyota Motor Corp|Hybrid vehicle|
    US20090266632A1|2008-04-25|2009-10-29|Hill Andrew D|Air cooling system for electric drive machine|
    JP2009292362A|2008-06-06|2009-12-17|Toyota Motor Corp|Misfire determination device for internal combustion engine, hybrid vehicle and misfire determination method for internal combustion engine|
    DE2346820A1|1973-09-18|1975-04-03|Licentia Gmbh|Cooling system for sealed units of I.C. engine - cooled air supplied by a blower is guided into a chamber within the silencer unit|
    DE9100340U1|1991-01-12|1992-02-13|Immler, Volker|
    US5694889A|1995-05-08|1997-12-09|Ball; Ronald C.|Electrical generator set|
    CN2797650Y|2005-06-08|2006-07-19|沈卫东|Low noise electric generation set|
    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|CN103016150B|2012-12-26|2015-12-09|北京理工大学|A kind of balance type range extender engine|
    DE102014111254B4|2014-08-07|2018-04-26|Pierburg Gmbh|For different mounting positions of suitable range extenders|
    DE102015214971A1|2015-08-06|2017-02-09|Bayerische Motoren Werke Aktiengesellschaft|Electric vehicle and docking station for an electric vehicle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1972/2010A|AT510758B1|2010-11-25|2010-11-25|POWER GENERATOR BOX WITH HOUSING|ATA1972/2010A| AT510758B1|2010-11-25|2010-11-25|POWER GENERATOR BOX WITH HOUSING|
    DE102011119195A| DE102011119195A1|2010-11-25|2011-11-22|Power generation unit used as range extender of electric car, has housing into which airflow enters through airflow input portion, where airflow passes laterally into internal combustion engine at preset angle with respect to driven shaft|
    CN201110382543.0A| CN102477899B|2010-11-25|2011-11-25|Generating set with housing|
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