公开(公告)号：US4682576A

公开(公告)日：1987-07-28

申请号：US741884

申请日：1985-06-06

申请人： Saburo Nakamura ,  Shigeru Sakurai ,  Takumi Nishida ,  Masanori Sahara

发明人： Saburo Nakamura ,  Shigeru Sakurai ,  Takumi Nishida ,  Masanori Sahara

IPC分类号： F02B31/02 ,  F02B3/06 ,  F02B27/00 ,  F02B29/02 ,  F02B29/08 ,  F02B31/00 ,  F02D9/02 ,  F02D13/02 ,  F02M31/12 ,  F02M31/135 ,  F02M35/10 ,  F02M31/02

CPC分类号： F02B27/003 ,  F02B27/0273 ,  F02B29/02 ,  F02B29/083 ,  F02B3/06 ,  Y02T10/146

摘要： A diesel engine intake system including a timing valve which is positioned in the intake system in engine starting and warming-up period under a cold engine condition. The timing valve is opened in the final period of the intake stroke so that a strong suction pressure is produced in the combustion chamber before the timing valve is opened. When the timing valve is opened, the intake air is rushed into the combustion chamber at a high speed whereby the intake air is compressed under the inertia of the high speed flow to thereby increase the temperature of the intake air. The timing valve is responsive to the suction pressure in the combustion chamber and opened when the suction pressure becomes stronger than a predetermined level.

摘要翻译： 一种柴油机进气系统，包括在发动机起动和预热期间在冷发动机状态下定位在进气系统中的定时阀。 定时阀在进气行程的最后期间打开，使得在定时阀打开之前在燃烧室中产生较强的吸入压力。 当定时阀打开时，吸入空气以高速冲入燃烧室，由此进气在高速流动的惯性下被压缩，从而增加进气的温度。 定时阀响应于燃烧室中的吸入压力，并且当吸入压力变得比预定水平强时打开。

公开(公告)号：US4669429A

公开(公告)日：1987-06-02

申请号：US715380

申请日：1985-03-25

申请人： Takumi Nishida ,  Yosihtaka Nomoto ,  Masanori Sahara ,  Hirofumi Yamauchi

发明人： Takumi Nishida ,  Yosihtaka Nomoto ,  Masanori Sahara ,  Hirofumi Yamauchi

IPC分类号： F02D41/06 ,  F02B3/06 ,  F02D1/02 ,  F02D41/00 ,  F02D41/04 ,  F02D41/40 ,  F02M45/00 ,  F02M45/08 ,  F02M61/10 ,  F02M61/16 ,  F02M39/00

CPC分类号： F02M45/08 ,  F02D41/40 ,  F02M61/161 ,  F02B3/06 ,  Y02T10/44

摘要： A fuel injection system for a diesel engine is provided with a needle-lift-suppressing type fuel injection nozzle such as the central plunger type pintle fuel injection nozzle which has a valve needle adapted to be lifted under fuel pressure fed from a fuel injection pump to increase the effective spray area with increase in the lift of the valve needle and a needle-lift-suppressing means which limits the lift of the valve needle to a pre-lift of a predetermined amount at low load and/or low speed, and a starting detecting means for detecting starting of the engine, said needle-lift-suppressing means being arranged to permit lift of the valve needle beyond said pre-lift irrespective of the engine load and engine speed when the engine is started.

摘要翻译： 一种用于柴油发动机的燃料喷射系统设置有诸如中央柱塞型枢轴燃料喷射喷嘴的提升抑制型燃料喷射喷嘴，其具有适于在从燃料喷射泵供给的燃料压力下被提升的阀针 通过提高阀针的升程来提高有效的喷雾面积，以及将针阀的升程限制为在低负载和/或低速下预定量的预升程的针提升抑制装置，以及 用于检测发动机起动的起动检测装置，所述提升力抑制装置被布置成允许当所述发动机起动时与所述发动机负荷和发动机转速无关地允许所述阀针的升程超过所述预升程。

公开(公告)号：US4624228A

公开(公告)日：1986-11-25

申请号：US741961

申请日：1985-06-06

申请人： Masanori Sahara ,  Takumi Nishida ,  Osamu Sado ,  Masaaki Kashimoto

发明人： Masanori Sahara ,  Takumi Nishida ,  Osamu Sado ,  Masaaki Kashimoto

IPC分类号： F02B31/00 ,  F02B3/06 ,  F02B27/00 ,  F02B29/02 ,  F02B29/08 ,  F02D9/02 ,  F02D13/02 ,  F02D21/06 ,  F02D21/08 ,  F02D37/00 ,  F02M25/07

CPC分类号： F02B27/003 ,  F02B29/02 ,  F02D21/08 ,  F02B3/06 ,  F02M26/57 ,  Y02T10/146

摘要： A diesel engine intake system including a timing valve which is positioned in the intake system in engine starting and warming-up periods under a cold engine condition. The timing valve is opened in the final period of the intake stroke so that a strong suction pressure is produced in the combustion chamber before the timing valve is opened. When the timing valve is opened, the intake air as rushes into the combustion chamber at a high speed, whereby the intake air is compressed under the inertia of the high speed flow to thereby increase the temperature of the intake air. The engine is also provided with a blow-by passage and an exhaust gas recirculation passage, both opening to the intake passage upstream of the timing valve, so that it is possible to prevent the blow-by gas and the recirculated exhaust gas from being drawn under the suction pressure when the timing valve is closed.

摘要翻译： 一种柴油发动机进气系统，包括在发动机起动和预热期间在冷发动机状态下定位在进气系统中的定时阀。 定时阀在进气行程的最后期间打开，使得在定时阀打开之前在燃烧室中产生较强的吸入压力。 当定时阀打开时，吸入空气以高速冲入燃烧室，由此进气在高速流动的惯性下被压缩，从而增加进气的温度。 发动机还设置有通过通道和排气再循环通道，两者通向定时阀上游的进气通道，从而可以防止窜气和再循环排气被抽出 在定时阀关闭时的吸气压力下。