公开(公告)号：US4445474A

公开(公告)日：1984-05-01

申请号：US446700

申请日：1982-12-03

申请人： Masami Nakao ,  Haruo Okimoto ,  Yoshikuni Yada ,  Junki Takeshita

发明人： Masami Nakao ,  Haruo Okimoto ,  Yoshikuni Yada ,  Junki Takeshita

IPC分类号： F02D9/02 ,  F02D23/00 ,  F02M11/02 ,  F02M11/04

CPC分类号： F02D23/00 ,  F02M11/02 ,  Y02T10/144 ,  Y10S261/51

摘要： An air intake system for a supercharged automobile engine comprises a supercharger disposed on an air intake passage, a primary throttle valve disposed in a primary passage downstream of the supercharger and operatively coupled to an accelerator pedal, a secondary throttle valve disposed in a secondary passage and adapted to be controlled in association with the primary throttle valve, an auxiliary throttle valve in the secondary passage upstream of the secondary throttle valve, and an actuator operable to maintain the secondary throttle valve in a full open position when and so long as the load on the engine is equal to or larger than a predetermined medium load and to gradually open the secondary throttle valve with increase of the suction pressure when and so long as the load on the engine is smaller than the predetermined medium load.

摘要翻译： 用于增压汽车发动机的进气系统包括设置在进气通道上的增压器，设置在增压器下游的主要通道中并可操作地联接到加速器踏板的主节流阀，设置在次级通道中的次级节流阀， 适于与主节气门相关联地控制，辅助节流阀在辅助节流阀上游的次级通道中，以及致动器，其可操作以在次负载打开时保持次级节气门处于完全打开位置 发动机等于或大于预定的中等载荷，并且当发动机上的负载小于预定介质载荷时，随着吸入压力的增加逐渐打开二次节气门。