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1. 发明授权

US4203296A Supercharged internal combustion engine 失效
标题翻译：增压内燃机
公开(公告)号：US4203296A
公开(公告)日：1980-05-20
申请号：US907859
申请日：1978-05-19
申请人： Eizi Tanaka , Akira Nishimatsu , Michiniro Ohashi
发明人： Eizi Tanaka , Akira Nishimatsu , Michiniro Ohashi
IPC分类号： F02B37/18 , F02B37/00
CPC分类号： F02B37/186 , Y02T10/144
摘要： A supercharged internal combustion engine has a turbo supercharger mounted on an exhaust pipe so that a turbine of the supercharger is driven by engine exhaust gases to drive a blower for the compression of engine intake air. A bypass exhaust pipe is connected to the exhaust pipe at a point upstream of the supercharger and extends in bypassing relationship to the supercharger. A valve is provided in the exhaust system at the above-mentioned point to control the exhaust gas flow into and through the exhaust pipe and the bypass exhaust pipe, respectively. A valve actuator is responsive to variation in the intake pressure in the engine intake system downstream of a throttle valve to actuate the valve such that, when the intake pressure is not greater than a first predetermined value, the valve is actuated to fully close the exhaust pipe and, when the intake pressure becomes greater than a second predetermined value, the valve is actuated to fully close the bypass pipe, whereby the supercharger is operated only in a throttle full-open engine operating range and the supercharging air pressure is kept below a predetermined pressure level to prevent not only the supercharger but also the engine intake and exhaust systems from being continuously subjected to loads.
摘要翻译：增压内燃机具有安装在排气管上的涡轮增压器，使得增压器的涡轮机由发动机废气驱动以驱动用于压缩发动机进气的鼓风机。旁通排气管在增压器上游的一个点处连接到排气管，并且以旁路关系延伸到增压器。在上述点处，在排气系统中设置有阀，以分别排气流入排气管和排气管。阀致动器响应于在节流阀下游的发动机进气系统中的进气压力的变化，以启动阀，使得当进气压力不大于第一预定值时，阀被致动以完全关闭排气管道，并且当进气压力变得大于第二预定值时，阀被致动以完全关闭旁通管，由此增压器仅在节气门全开的发动机工作范围内操作，并且增压空气压力保持在低于预定的压力水平，不仅防止增压器，而且防止发动机进气和排气系统不断受到负载。

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