• 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:
    1. A method of producing energy in an internal combustion engine by means of supplying air to an engine compressed in a compressor driven by a turbine running on engine exhaust, partially extracting compressed air between the compressor and the engine and adding the selected compressed air to the inlet exhaust stream into the turbine with the transfer of heat energy from the exhaust gases in the turbine to the selected compressed air, which is characterized by the fact that, in order to increase the efficiency of the use of energy from the exhaust gases the turbine of gases, simultaneously with the extraction and transfer of heat energy from the exhaust gases to the selected air, is carried out a partial selection and transfer of their mass by ejecting gases with compressed air and mixing them, 2, The method according to claim 1, characterized in that the pressure of compressed air is mixed with the exhaust exhaust gases are produced at the turbine inlet and at an angle to the flow axis. 3. An internal combustion engine containing a turbo-compressor group, in which at least one compressor is connected through an air-pressure pipe a wire with the engine intake receiver and kinematically connected to the turbine, the outlet of which is connected to the atmosphere, and the inlet channel with the open end of the engine exhaust manifold, air cooler installed in the air pressure pipe, the bypass pipe connecting the air pressure pipe to the O line. exhaust gases from the collector with the turbine inlet duct and the unit for transferring air to the energy of the exhaust gases of the turbine installed in the bypass pipeline, characterized in that The goal of increasing efficiency is that the exhaust air energy transfer unit is designed as an ejector, in which the inlet and aperture of the passive nozzle are connected to the outlet of the turbine, and the active nozzle is made as a section of the bypass pipe, 4. The engine according to claim 3, that the connection of the bypass pipeline to the exhaust supply main is made at an angle. 5. Engine by -p. 3, characterized in that the connection of the overflow pipe to the exhaust supply line is made at the end of the exhaust manifold.
    公开号:SU1111690A3
    申请号:SU813259054
    申请日:1981-03-20
    公开日:1984-08-30
    发明作者:Куртиль Реми
    申请人:Сосьете Дъэтюд Де Машин Термик С.Э.М.Т.(Фирма)；
    IPC主号:
    专利说明:

    6.Engineer on PP. 3, 4 and 5, characterized in that the turbo-compressor group is made up of two stages with high and low pressure turbines and the inlet of the passive ejector nozzle is connected to the outlet of the low pressure turbine.
    7. The motor according to claim 6, wherein the compound
    the bypass pipeline with an exhaust supply line is provided between high and low pressure turbines.
    8. The engine on the PP. 3-7, characterized in that the connection of the overflow pipe with the air-pressure pipeline is made between the compressor and the air cooler.
    FIELD OF THE INVENTION The invention relates to the field of mechanical engineering, namely, engine-building - pressurization systems of an internal combustion engine.
    There is a known method of producing energy in an internal combustion engine by injecting air into the engine that is compressed in a compressor, driven by a turbine powered by the engine exhaust gas, partial extraction of compressed air between the compressor and the engine, and adding selected compressed air to the inlet gas stream. to the turbine with the transfer of heat energy from the exhaust gases in the turbine to selected compressed air 1
    An internal combustion engine designed to implement the conventional method contains a turbo-compressor group, in which at least one compressor is connected via an air-supply pipe to an engine intake receiver and is kinematically connected to a turbine whose outlet is in communication. with the atmosphere, and the inlet channel - with the open end of the engine exhaust manifold, an air cooler installed in the air-pressure pipeline, an overflow pipe that connects the air-pressure pipeline to the exhaust gas supply line from the collector to the turbine inlet channel gas turbine sp.
    In the known method and apparatus, the heat energy of the exhaust gases in the turbine is used, but not their mass, which reduces the efficiency of using their energy.
    The purpose of the invention is to increase the efficiency of the use of exhaust gases in the turbine.
    To achieve this goal, according to the method of producing energy in an internal combustion engine by supplying air to the engine,
    compressed in a compressor driven by a turbine operating on engine exhaust gas, partial extraction, compressed air
    between the compressor and the engine and
    adding selected compressed air to the exhaust stream at the inlet to the turbine with the transfer of heat energy spent in the turbine
    gases to the selected compressed air, simultaneously with the extraction and transfer of heat energy from the exhaust gases to the selected air, a partial selection is made and transferred to their mass
    by ejecting gases with compressed air and mixing them.
    The addition of compressed air in the exhaust gas mixture to the exhaust gas stream is performed at the turbine inlet and at an angle to the flow axis.
    To increase the efficiency of an internal combustion engine containing a turbo-compressor group,
    wherein at least one compressor is connected via an air-pressure pipeline to an engine intake receiver and is kinematically connected to a turbine, the outlet of which
    communicated with the atmosphere, and the inlet channel - with the open end of the exhaust manifold of the engine, the air cooler installed in the air-pressure pipeline, the overflow pipe connecting the air-pressure pipeline with the exhaust pipe from the collector to the turbine inlet channel, and the air transmission block installed in the bypass pipe of the air transmission unit ; To the exhaust gases of the turbine, the transmission unit to the air of energy of the exhaust gases is made in the form of an ejector, in which the inlet of the passive nozzle is connected to the outlet of the turbine, and the active nozzle is made in the form of a section of the bypass pipeline. The connection of the bypass pipe to the exhaust line can be made at an angle. The connection of the bypass pipe to the exhaust line can be made at the end of the exhaust manifold. The turbocharger group can be made two-stage with high and low pressure turbines and the inlet of the passive ejector nozzle is connected to the outlet of the low pressure turbine. In this case, the connection of the overflow pipe with the exhaust gas line can be made between the high and low pressure turbines. The connection of the overflow pipe with the air-pressure pipe can be made between the compressor and the air-cooled / ieM. FIG. 1 shows a functional diagram of the device; FIG. 2 is a schematic representation of a device in which a selected amount of compressed air receives thermal energy simultaneously with a certain mass of exhaust gases in the turbine as a result of a displacement in the ejector; in fig. 3 embodiment of the invention, in which the sampled amount of compressed air is heated during the use of this air to cool at least one exhaust valve of an internal engine. combustion} in FIG. 4 shows an embodiment of the invention in which 1 90 a selected amount of compressed air is supplied to the inlet volute of at least one exhaust gas turbine; in fig. 5 is a partial cross-sectional view of AA in fug. four; in fig. 6 is a partial sectional view of the flat sweep of the cochlea in a 360 ° turn. An internal combustion engine, for example, a diesel engine 1 liMet at least one row of cylinders 2, for example six. The engine may have several rows of cylinders, for example two, arranged Y-shaped. In this case, one group of pressurization is provided for each row of cylinders. Each row of engine cylinders includes an intake receiver 3 and at least one modular type exhaust manifold 4 with a pulse converter consisting of equal portions with a constant cross-section of the bore through the entire length. Engine 1 is designed to be supercharged by a single or multi-stage turbo-compressor group, the air compressor of which is kinematically connected to the turbine. In this case, one compressor 5 is shown, and the turbocharger includes a turbine 6 mechanically connected to the compressor 5 by means of an intermediate shaft 7. The outlet of the compressor through the air-supply pipe 8 is connected to the inlet receiver 3 of the engine 1. Air cooler 9 serves to cool the compressed air supercharging engine. The inlet channel 10 of the turbine 6 is connected via a pipe 11 to the open end of the exhaust manifold 4. The connection of the overflow pipe 12c to the air-filled pipe 8 is made between, the compressor and the air cooler 9, and to the exhaust line at the end. In this case, the withdrawn amount of heated compressed air enters the manifold at the point of the lowest instantaneous pressure of exhaust gases in the manifold. The choice of compressed air for this particular location of the exhaust manifold is due to the fact that the first cylinder of the engine can suck the air. In this case, the transfer of energy to the exhausted amount of compressed air is in the form of heat and mass by directly mixing most of the exhausted compressed air with a part of the gas flow exiting the turbine as a result of the ejection. . Compressed air in the form of a single air jet ejects ethn gases. With this circuit, one ejector 13 is provided, the active nozzle 14 of which is made as a section of the bypass pipeline 12, and the inlet of the passive nozzle 15 is connected to the exhaust pipe 17 of the turbine 6 by means of pipe 16. At the outlet of the ejector 13 a mixture of gases and compressed air through pipe 12 is supplied to the exhaust manifold 4 of the engine 1. The exhaust air quantity is regulated and the extraction can be interrupted or stopped when the engine is started up or when it is operated with a power sufficiently high to be a turbo compressor turbine m meet the needs of the engine. For this purpose, the bypass pipeline 12 is equipped with a valve or similar device 18, for example, with a valve with a gradual change in cross section, this valve must be closed after reaching a certain specific power value. It can be controlled depending on the instantaneous pressure of the air behind the compressor or the pressure of the air entering the engine (since the pressure of compressed air at the outlet of the compressor is approximately proportional to the power developed by the engine over a relatively wide range of rotational speeds of the engine). In order to avoid any change in the direction of movement of the compressed air in the bypass pipe 12, the exhaust gas pressure in the exhaust manifold 4 is lower than the pressure of the compressed air in the bypass pipe. To prevent this change in the direction of flow in the bypass pipe automatically, the return or shut-off valve 19. valve 18 operates as a damper, it must be closed when engine 1 is started (i.e. when the pressure of the incoming air is zero), and e when the gas pressure in the exhaust manifold 4 starts to exceed the pressure of compressed air on January 6 in the bypass duct 12, in particular in case no feedback or shut-off valve 19). In the embodiment of FIG. 3, the transfer of energy to the withdrawn amount of compressed air is carried out in a heat generator discharged by a hot engine organ, for example a movable valve, so that at the same time this hot organ is cooled due to the circulation of compressed air. For this purpose, a channel for the passage of compressed air moving in the bypass channel 12 is made in a hot movable body. In this case, preferably | so that compressed air is drawn off after cooling in the air cooler. FIG. 1 shows heat extraction from one exhaust valve of the engine 1. This valve has one channel 20 for cooling compressed air, which is connected with both its ends to the bypass pipe 12. 1 The turbine is axially made, and its inlet is usually connected to the exhaust line through a diffuser especially in the case of the exhaust manifold being modular with a pulse converter. However, to better utilize the kinetic energy of the gases, it is desirable to maintain the high velocity that the gases have after exiting the collector, and to eliminate the diffuser by connecting the exhaust manifold outlet and the turbine inlet by means of a cochlea 21 or a similar device, in which the flow area gradually decreases from inlet 22 to wheel 23 as shown in FIG. 4-6. This makes it possible to eliminate the turbine guide and replace it with a cochlea, and the flow acceleration function is performed by the exhaust manifold. In this embodiment of the invention, the connection between the exhaust manifold 4 and the axial tube 6 is carried out by means of a spiral casing covering the wheel 23 of the turbine with blades. As already indicated, the cochlea 21 is shaped so that the flow area for gases gradually decreases so that the rate of gas entry into the turbine wheel 23 is constant around the entire perimeter of this wheel. In the embodiment shown in FIG. 11. 4-6, the addition of compressed air in the mixture with the exhaust gases to the exhaust gas flow is performed at the entrance to the turbine and at an angle to the flow, the value of which is adjusted. If the exhaust manifold 4 of engine 1 and at least one turbine 6 of the turbo-compressor group are connected by a cochlea, the addition is carried out tangentially to the path of the exhaust gases entering the cochlea at the beginning of their curved path in the cochlea in order to cause a deviation of the trajectory and make a favorable change in the triangles of the gas velocities in the blades of the turbine wheel. The angle ot is selected depending on the operating state of the turbine. The bypass duct 12 is connected to the cochlea with the possibility of changing the angle oi. Such a connection can be made using a nozzle 24 or similar means pivotally connected at point 25 with the cochlea 21. In FIG. Figure 1 shows schematically the various contours or flow paths of gaseous media. Continuous lines indicate constant channels or preferably used channels, discontinuous or dotted lines indicate channels used in various embodiments of the invention. Air compressor boost can be made single-stage or multi-stage, for example two-stage. In the second case, it contains one low pressure stage 26, from which compressed air enters the second high pressure stage 27, while passing through an intermediate air cooler (not shown). The main stream of compressed air leaving it. the compressor passes through the air cooler 28 and enters the internal combustion engine 1, indicated by the circuit through the inlet receiver of the latter. This air is used to form a combustible mixture, which, when burned, produces combustion products in various engine working cylinders, the latter, as a result of direct contact, heat up, in particular, various parts or engine parts, such as, for example, exhaust valves 2.9, through which flow out of the cylinders and entering as exhaust gases into at least one exhaust manifold 30 of engine 1 (engine limits are indicated by a dotted box). The gases then flow into at least one gas turbine, designed (but not necessarily) for driving the air compressor. This turbine can be single-stage or multi-stage, for example, two-stage, containing one high-pressure turbine 31 (indicated by a dotted circle) and one low-pressure turbine 32. The amount of compressed air A discharged through channel 33 before the air cooler 28 passes through the heat exchanger 34 where the air is heated by exhaust gases CE, leaving the turbine through channel 35 and also passing through heat exchanger 34 to the atmosphere. Aj heated compressed air in the amount of Aj is injected into exhaust 30, where a collector mixes compressed air with exhaust gases feeding the turbine. In accordance with the invention, the heat exchanger 34 is an ejector, in which part of the CE gases coming out of the turbine is mixed with compressed air, resulting in a hot gas mixture A "flowing into exhaust manifold 30. Compressed air in the amount of A can to be selected after the air inlet 28 (see the dotted line), after which the quantity A through channel 36 enters at least one heated engine exhaust valve 29. Passing through this valve, the air is heated while simultaneously cooling the valve. Then the flow of air heated in such a way is blown into exhaust manifold 30. In another embodiment, the withdrawn amount of compressed air withdrawn by the air-cooler 28 is heated, the flow in the amount of A "through line 37 is hot exhaust manifold 30. Then the flow-heated air stops in exhaust manifold. In the case of a two-stage turbine, the amount of compressed air being entered is: A, stripped before air-cooling 911
    the tjepea heat exchanger 34 passes, where it is heated by gases leaving the low pressure turbine 32. After that, the flow of heated air is blown in an amount Aj into the flow of gases leaving the high pressure turbine 31 before entering the low pressure turbine 32.
    During the compression process in the ejector, the gases are heated significantly more than at the outlet of the turbine, the effect of gas recirculation increases.
    Suppose that the air pressure at the compressor outlet is 1.3 bar and its temperature is 90 °. If the gas temperature at the turbine outlet is 400 ° C and the gas is recompressed to 1.22 bar (pressure at the turbine inlet) in the ejector, the temperature of the same gases reaches 50 ° C. A quantity of selected gas, equal to only one-third of the amount of active air, therefore makes it possible to obtain a gas mixture having a temperature of 180 ° C, i.e. about the same as in a regenerative heat exchanger.
    Thus, the transfer of heat simultaneously with the transfer of the mass of exhaust gases in the turbine by ejecting them with compressed air and mixing allows for an increase in the energy efficiency of the exhaust gases.
    In accordance with an embodiment of the invention, the exhaust co10
    1690
    The amount of compressed air introduced into the cochlea 21 may not receive any preliminary energy flow (in particular, thermal energy), i.e. can flow directly from the compressor to the cochlea, not passing through any heat recuperator (for example, a heat exchanger, etc.).
    In accordance with another embodiment of the invention, the withdrawn amount of compressed air may be independent of the energy flow (e.g., by heating).
    The latter option can be used in combination with an exhaust amount of 17 heated compressed air. In this case there will be two streams of exhaust compressed air, one of which is heated and the other is not. This stream of non-heated compressed air can be supplied to the cochlea 21 via another bypass channel separated from the pipeline 12.
    The embodiment of the invention represented in FIG. 4-6 for an axial turbine, can also be used for centripetal turbines for a favorable effect on the velocity triangle.
    Thus, the implementation of an energy transfer unit in the form of an ejector and the connection of an overflow pipe to the exhaust gas supply line at an angle increase the efficiency of the engine.
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    权利要求:
    Claims (8)
    [1]
    1. A method of producing energy in an internal combustion engine of the supply paths to the engine of air compressed in a compressor driven by a turbine operating on the exhaust gases of the engine, partial selection of compressed air between the compressor and the engine, and adding selected compressed air to the exhaust stream at the inlet into a turbine with the transfer of thermal energy of the exhaust gases in the turbine to the selected compressed air, characterized in that, in order to increase the efficiency of energy use of the exhaust in the turbine e gases simultaneously with the selection and transfer of thermal energy of exhaust gas bleed air produce a partial selection and transfer their weight by ejecting gas compressed air and their mixture.
    [2]
    2. The method according to claim 1, with the fact that the pressure of the compressed air in the mixture with the exhaust gases to the exhaust stream is produced at the inlet of the turbine and at an angle to the axis of the stream.
    [3]
    3. An internal combustion engine containing a turbocompressor group, in which at least one compressor is connected through an air pressure pipe to the engine inlet receiver and kinematically connected to the turbine, the outlet pipe of which is in communication with the atmosphere, and the inlet channel to the open end of the engine exhaust manifold, air cooler installed in the air pressure pipe, a bypass pipe connecting the air-pressure pipe to the main. exhaust gas supply from the manifold to the inlet the turbine channel, and a turbine exhaust energy transfer unit installed in the bypass pipe, characterized in that, in order to increase efficiency, the exhaust gas energy transfer unit is made in the form of an ejector, in which the inlet of the passive nozzle is connected to the turbine outlet and the active nozzle is made in the form of a section of the bypass pipeline.
    [4]
    4. Engine pop. 3, distinguished by the fact that the bypass pipe is connected to the exhaust gas supply pipe at an angle.
    [5]
    5. The engine according to claim 3, characterized in that the bypass pipe is connected to the exhaust gas supply pipe at the end of the exhaust manifold.
    SU < m 11-690
    C III
    [6]
    6. The engine according to paragraphs. 3, 4 and 5, characterized in that the turbocompressor group is made two-stage with high and low pressure turbines and the inlet of the passive nozzle of the ejector is connected to the outlet of the low pressure turbine.
    [7]
    7. Engine pop. 6, wherein the bypass pipe is connected to the exhaust gas supply line between high and low pressure turbines.
    [8]
    8. The engine according to paragraphs. 3-7, characterized in that the connection of the bypass pipe with the air pressure pipe is made between the compressor and the air cooler.
    类似技术:
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    同族专利:
    公开号 | 公开日
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    FI810800L|1981-09-22|
    YU74081A|1985-08-31|
    DK154103B|1988-10-10|
    KR840002482B1|1984-12-31|
    ES8202097A1|1982-01-01|
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    NO810955L|1981-09-22|
    DE3173791D1|1986-03-27|
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    ES500592A0|1982-01-01|
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    DK123181A|1981-09-22|
    FR2478736A1|1981-09-25|
    NO156764C|1987-11-18|
    US4404805A|1983-09-20|
    FI66237C|1984-09-10|
    FI66237B|1984-05-31|
    CS247059B2|1986-11-13|
    YU42561B|1988-10-31|
    NO156764B|1987-08-10|
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    EP0038232A3|1982-02-03|
    FR2478736B1|1983-07-22|
    BR8101578A|1981-09-22|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR8006439A|FR2478736B1|1980-03-21|1980-03-21|
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