• 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:
    During idling or partial loading of the reciprocating combustion engine the exhaust gas turbocharger (18) is switched off and the fuel supply to several cylinders (12) is cut off. A charging air supply optimally adapted to the operation of the reciprocating combustion engine is achieved by means of a controllable switching device (32) in the section (14) of the charging air pipe of the inoperative cylinders (12). The passage from the charging air inlet manifold (19) to the charging air pipe section (14) is closed off and the fuel supply to the cylinders (12) is also cut off, while the engine is running, by means of the switching device (32). Simultaneously, a passage is opened between an air suction orifice (33) and the section of the charging air pipe (14), through which the air supply needed for the entrained cylinders (12) is fed. The exhaust gas turbocharger (17) which is switched on thereby functions in a favorable operating range.
    公开号:SU1709920A3
    申请号:SU884356007
    申请日:1988-06-08
    公开日:1992-01-30
    发明作者:Рютц Георг
    申请人:Мту Моторен-Унд Турбинен-Унион Фридрихсхафен, Гмбх (Фирма)；
    IPC主号:
    专利说明:

    21
    V4
    O O O U O O

    cm
    cylinder group 2 at idle and part-load operation. The locking device switches off the turbocharger 10 in this case. To prevent leakage of compressed air at the intake of the shut-off blower 1+, a check valve 18 is installed. Switching valve 18 turns off the inlet pipe 5 from the common collection pipe 3 and disconnects it through the pipe 29 to the atmosphere . Cylinders with the fuel supply turned off suck air from the atmosphere, and exhaust from them enters the turbine 11 of the turbocharger 9. 3 Cp. f-ly, il.
    The invention relates to devices for pressurizing a multi-cylinder internal combustion piston engine with parallel operating turbochargers and with regulation by shutting off the fuel supply to the cylinder group.
    The purpose of the invention is to maintain the overpressure in the charge-air collecting pipeline during operation with the fuel supply turned off.
    FIG. 1 shows an internal combustion engine, the cylinders of which are divided into two groups of cylinders arranged in rows and two parallel-running turbochargers, and the inlet pipeline of the disconnected group of cylinders is equipped with a pipe for communication with the atmosphere. And the valve block is made in the form of a switching valve in FIG. . 2 shows a variant of a separate implementation of the organ for blocking the nozzle for communication with the atmosphere and the organ for disconnecting the inlet pipeline of the group to be disconnected from the collecting pipeline i in FIG. 3 is a variant of discharging a switching valve along with an organ for disconnecting the intake manifold from the common collecting line for charge air in FIG. An embodiment of the switching valve is controllable.
    The piston internal combustion engine consists of two groups of cylinders 1 and 2, which are supplied with compressed air from the assembly line 3 of charge air through the intake pipes and 5. Groups 1 and 2 of the cylinders are equipped with exhaust manifolds 6 and 7 for exhaust gases. Both manifolds are connected to an exhaust gas collection pipeline 8. The power supply with NDVA air comes from two turbochargers 9 and 10 connected in parallel to each other, each consisting of a turbine 11 or 12, respectively, operating on exhaust gases, and a supercharger 13 Or I, respectively, which are plug-ins to the collecting line 3 of charge air.
    The turbocharger 10 is disconnected and connected by means of a controlled locking device 15I located in the pipeline 16 for supplying exhaust gases to its turbine 12. In order for the turbocharger 10 to be disconnected through the 1L compressor, there was no leakage of supercharged air at the suction of this compressor 14 in the pipeline 17 valve 18.
    The exhaust gas turbines 11 and 12 are connected to the exhaust gas collection pipe 8 from the inlet side through pipelines 16 and 19, and from the output side these turbines are connected to the exhaust pipe 20.
    The blowers 13 and k are equipped with suction lines 21 and 17 and supply compressed charge air through lines 22 and 23 through coolers 2k and 25 of charge air into the charge-air collecting duct. Each of the turbochargers 9, 10 is provided with a pipeline 2b or 27, respectively, for supplying compressed air from the pipeline 22 or 23, respectively, to seal the impeller.
    The engine is equipped with a device for shutting off the fuel supply (not shown) to the group of cylinders 2 at idle and during work with partial load. Since the valve timing with the cylinders 2 shut off is not
    change, in these cylinders, in the off state, the change of air charge continues to occur.
    At idle and with partial load, the amount of engine exhaust gases is insignificant. - So, with the turbocharger 10 turned off, the existing exhaust gas quantity is not enough to obtain a boost pressure exceeding the atmospheric pressure with the help of the turbocharger 9, if you apply air from the supercharger 13 to the disabled cylinders 2.
    At the same time, due to the too low charge air pressure, the air seals of the impellers of both turbochargers are not effective and lubricating oil can flow through these seals into the cavity of the supercharger.
    To eliminate the difficulties that have arisen between the charge-air collecting pipeline 3 and the intake pipeline 5, an organ has been installed. It can be made in the form of a switching valve. 28 at the same time as the organ 9M of blocking the branch pipe 29, which is intended for communication of the pipeline 5 with the atmosphere.
    In each intake manifold and 5, there is a quick-acting locking member 30 for disconnecting it from the common collection pipeline for charge air 3 when a hazard occurs. QH is installed behind the switching valve along the air path
    In the embodiment of FIG. 2, the shut-off organ of the suction pipe 5 is made separately from the shut-off organ of the nozzle 29 in the form of a valve 31. The organ of the shut-off of the nozzle 29 is designed as a check valve 32.
    In the embodiment of FIG. 3, the high-speed shut-off element 30 and the switching valve 28 are designed) at the same time in the form of a combined valve block 33.
    In the embodiment of FIG. K high-speed shut-off organ and shut-off organ of the suction pipe are made at the same time in the form of a switching device 3, and the argan shut-off nozzle is made in the form of a controlled
    switching valve 35.
    Shutting off the suction pipe 5 and the common charge air prefabricated pipe 3 eliminates charge air leaks that were supplied by the turbocharger 9 to the disconnected group 2 cylinders, which eliminates undesirable pressure drop in the charge air combined pipe 3. The communication of the cylinders of this group with the atmosphere through the suction pipe 5 and the pipe 29 provides their air supply from the atmosphere. Air under pressure, displaced from the cylinders of group 2 into the exhaust gas pipeline, flows together with the exhaust gas from the cylinders of group 1 into the turbine 11 of the turbocharger 9, 8 as a result of which the turbine 11 develops additional power expended on the increase in pressure created by the supercharger 13. This ensures that a predetermined pressure in the charge-air collecting pipeline 3 at operating modes with the fuel supply turned off.
    权利要求:
    Claims (2)
    [1]
    1. A multi-cylinder internal combustion engine with a supercharged engine containing several turbochargers connected in parallel to each other, whose turbines run on exhaust gases, and the superchargers are connected to a common charge air duct to which the inlet pipelines of individual cylinder groups are connected, and the engine is equipped with a shutdown device fuel supply to the cylinder group at idle and at partial load, and at least one of the turbochargers n is disconnected and has a check valve on the suction of the supercharger, characterized in that, in order to maintain the excess pressure in the charge-air collecting duct on the operating modes with the fuel supply turned off, the inlet pipeline of the group of cylinders with the fuel supply shut off is provided with a branch pipe for communication with the atmosphere shut off the nozzle and the body off this pipeline from the general collection pipeline charge air.
    [2]
    2. The engine under item 1, characterized in that the organ blocking the pipe is made in the form of a switching valve.
    717099208
    3 The engine according to claim 2, about the total collection pipeline of the pipeline with the fact that the switching air valve is made with the organ. The engine according to claim 2, about tons of l and disconnecting the intake manifold from j th and so that the switching valve is controllable.
    类似技术:
    公开号 | 公开日 | 专利标题
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    GB1573193A|1980-08-20|Reciprocating piston internal combustion engine and turbocharger assembly
    SU1658824A3|1991-06-23|Ship multiengined propulsion system
    JPH0242125A|1990-02-13|Supercharge piston internal combustion engine formed by fuel supply device capable of being shut-off with respect to several cylinders
    KR940004336B1|1994-05-23|Multi-engine plant including turbocharged combustion engines
    SU1487822A3|1989-06-15|Gas-generator unit
    JPS60104718A|1985-06-10|Supercharging device of internal-combustion engine
    SU1247573A1|1986-07-30|Supercharged i.c.engine
    EP0046156B1|1985-02-13|Turbocharged engine with pressurized gas recirculation
    SU1270385A1|1986-11-15|Internal combustion engine
    同族专利:
    公开号 | 公开日
    JPH0758051B2|1995-06-21|
    EP0302082B1|1990-09-12|
    JPH02500042A|1990-01-11|
    CN87107024A|1988-08-31|
    KR890700740A|1989-04-27|
    CN1006484B|1990-01-17|
    EP0302082A1|1989-02-08|
    DE3764957D1|1990-10-18|
    KR920001747B1|1992-02-24|
    US4903489A|1990-02-27|
    WO1988006232A1|1988-08-25|
    DE3704967C1|1988-05-11|
    ES2005384A6|1989-03-01|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    US4548039A|1978-09-07|1985-10-22|Mtu Friedrichshafen Gmbh|Turbocharged internal combustion engine|
    DE2838952C2|1978-09-07|1983-04-21|Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen|Internal combustion engine with several cylinders|
    DE2847527C2|1978-11-02|1989-09-14|Mtu Friedrichshafen Gmbh|
    DE2849723C2|1978-11-16|1983-08-04|Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen|Internal combustion engine|
    DE2911727C2|1979-03-24|1985-05-30|Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen|Piston internal combustion engine with at least two exhaust gas turbochargers|
    DE3046876C2|1980-12-12|1987-05-14|Mtu Friedrichshafen Gmbh|
    DE3046874C2|1980-12-12|1988-10-13|Mtu Friedrichshafen Gmbh|
    DE3101623C2|1981-01-20|1984-06-28|Mtu Motoren- Und Turbinen-Union Friedrichshafen Gmbh, 7990 Friedrichshafen|Internal combustion engine|
    IT1149783B|1982-02-26|1986-12-10|Alfa Romeo Auto Spa|MODULAR TYPE MULTI-CYLINDER ENGINE, WITH SUPERCHARGING|
    JPS59183047A|1983-03-31|1984-10-18|Nissan Motor Co Ltd|Engine capable of changing the number of cylinders to be operated|
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    DE4026099C2|1990-08-17|1994-02-03|Mtu Friedrichshafen Gmbh|Oil supply system for the bearings of exhaust gas turbochargers that can be switched on and off|
    DE4310148C2|1993-03-29|1995-03-16|Daimler Benz Ag|Internal combustion engine with supercharging|
    DE4312077C1|1993-04-13|1994-01-20|Daimler Benz Ag|Exhaust gas turbocharger for IC engine - has at least one turbine and compressor, turbine having inflow and outflow sides, turbine wheel, housing with spirally-shaped flow channel and variable guide blade crown|
    DE19928925A1|1999-06-24|2000-12-28|Asea Brown Boveri|turbocharger|
    DE10348967B4|2003-10-22|2006-11-02|Voith Turbo Gmbh & Co. Kg|Method for optimizing the degree of utilization in a drive unit and drive unit|
    DE10361114A1|2003-12-22|2005-07-14|Daimlerchrysler Ag|Boost pressure control|
    JP4389739B2|2004-09-29|2009-12-24|三菱自動車工業株式会社|Internal combustion engine with a supercharger|
    GB2430708B|2005-10-03|2010-09-22|Ford Global Tech Llc|Turbo charging in a variable displacement engine|
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    JP4950082B2|2008-01-10|2012-06-13|三菱重工業株式会社|Marine diesel engine|
    JP5449062B2|2010-07-02|2014-03-19|三菱重工業株式会社|Seal air supply device for exhaust gas turbocharger|
    CN102748122B|2012-07-16|2013-12-25|上海中船三井造船柴油机有限公司|Control device of operative condition for booster of marine diesel engine|
    US10167799B2|2012-07-31|2019-01-01|Tula Technology, Inc.|Deceleration cylinder cut-off in a hybrid vehicle|
    US10408140B2|2012-07-31|2019-09-10|Tula Technology, Inc.|Engine control in fuel and/or cylinder cut off modes based on intake manifold pressure|
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    CN104675512A|2014-12-11|2015-06-03|哈尔滨工程大学|Sequential supercharged diesel engine switching stabilizing device and control method|
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    CN109882283B|2019-03-27|2020-09-29|潍柴动力股份有限公司|Control method and device for sequential pressurization system|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE3704967A|DE3704967C1|1987-02-17|1987-02-17|Supercharged multi-cylinder reciprocating internal combustion engine with several exhaust gas turbochargers working in parallel|
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