公开(公告)号：US4585161A

公开(公告)日：1986-04-29

申请号：US712898

申请日：1985-03-18

申请人： Akio Kusama ,  Ichiro Nakamachi ,  Kunio Shigihara ,  Hiroyuki Amemori ,  Yasuji Miyata ,  Tetsuo Iwamoto

发明人： Akio Kusama ,  Ichiro Nakamachi ,  Kunio Shigihara ,  Hiroyuki Amemori ,  Yasuji Miyata ,  Tetsuo Iwamoto

IPC分类号： F23N1/02 ,  F23N5/18 ,  F23N1/00

CPC分类号： F23N1/022 ,  F23N2025/08 ,  F23N2033/06 ,  F23N2035/02 ,  F23N2035/12 ,  F23N2037/20 ,  F23N5/18 ,  Y10T137/2529

摘要： An air fuel ratio control system comprises a first valve provided in a fuel pipe through which a fuel is supplied to a burner, a second valve provided in an air pipe through which air is supplied to the burner, a varying circuit for varying responsive to a preset flow rate of fuel a valve opening degree of each of the first and second valves while maintaining a constant ratio between the valve opening degrees of the first and second valves, so that an air fuel ratio of a flow rate of fuel flowing through the first valve and a flow rate of air flowing through the second valve assumes a value greater than a theoretical air fuel ratio, a first sensor for detecting a flow rate of fuel flowing through the fuel pipe, a second sensor for detecting a flow rate of air flowing through the air pipe, a fuel bypass pipe provided in the fuel pipe for bypassing the first valve, a third valve provided in the fuel bypass pipe, and a control circuit supplied with output signals of the first and second sensors for controlling a valve opening ratio of the third valve, so that the air fuel ratio assumes a predetermined air fuel ratio.

摘要翻译： 空燃比控制系统包括设置在燃料管中的第一阀，通过燃料管将燃料供给到燃烧器，设置在空气管中的第二阀，空气通过该管供给燃烧器，响应于 预先设定燃料的流量，同时保持第一和第二阀的阀开度之间的恒定比例的第一和第二阀中的每一个的阀开度，使得流过第一阀的燃料的流量的空燃比 阀，并且流过第二阀的空气的流量呈现大于理论空燃比的值，用于检测流过燃料管的燃料的流量的第一传感器，用于检测流过空气的流量的第二传感器 通过空气管，设置在用于旁路第一阀的燃料管中的燃料旁通管，设置在燃料旁通管中的第三阀，以及供给第一和第二阀的输出信号的控制电路 用于控制第三阀的阀开启比，使得空燃比采用预定的空燃比。