公开(公告)号：US4239028A

公开(公告)日：1980-12-16

申请号：US36493

申请日：1979-05-07

申请人： Kei Kimata ,  Tsugito Nakazeki ,  Yoshinobu Yasuda

发明人： Kei Kimata ,  Tsugito Nakazeki ,  Yoshinobu Yasuda

IPC分类号： F02M69/22 ,  F02M69/46 ,  F02D7/00

CPC分类号： F02M69/22 ,  F02M69/467 ,  Y10T137/7764

摘要： An air/fuel ratio compensating device is provided for association with an internal combustion engine having a fuel control valve, air suction pipe means and pedal accelerator means, the compensating device including an area flow metal system made up of a flow detection valve positioned upstream in the air suction pipe means and operatively associated with the fuel control valve, a flow control valve positioned downstream in the air suction pipe means in series with the flow detection valve and being operatively connected to the accelerator pedal means, the area flow meter system enabling the difference in pressure existing on opposite sides of the flow detection valve to be maintained at a predetermined value to insure that the amount of air flow is proportional to the opening area of the flow detection valve thus permitting a determination of the amount of air flow on the basis of the opened area of the flow detection valve, a feedback control mechanism for controlling the area control flow meter and including pressure sensitive amplifier means to detect and amplify the deviation of the difference in pressure, valve opening means connected to the amplifier means and operatively associated with the flow detecting valve for opening and closing the flow detection valve by the output from the amplifier means, and compensating means for compensating for the set value placed in the pressure sensitive amplifier means according to the operating conditions of the internal combustion engine.

摘要翻译： 提供一种空燃比补偿装置，用于与具有燃料控制阀，空气吸入管装置和踏板加速装置的内燃机相关联，所述补偿装置包括由位于上游的流量检测阀构成的区域流动金属系统 空气吸入管装置并且与燃料控制阀可操作地相关联，流量控制阀位于空气吸入管装置的下游，与流量检测阀串联并且可操作地连接到加速器踏板装置，该区域流量计系统使得能够 存在于流量检测阀的相对侧上的压力差保持在预定值，以确保空气流量与流量检测阀的开口面积成比例，从而允许确定气流量 流量检测阀开放面积的基础，控制区域控制的反馈控制机构 l流量计，包括压敏放大器装置，用于检测和放大压力差的偏差，连接到放大器装置的开阀装置，并与流量检测阀可操作地相关联，用于打开和关闭流量检测阀， 放大器装置和补偿装置，用于根据内燃机的运行条件补偿放置在压敏放大器装置中的设定值。