公开(公告)号：EP1508688A1

公开(公告)日：2005-02-23

申请号：EP02728186.4

申请日：2002-05-29

申请人： MITSUBISHI DENKI KABUSHIKI KAISHA

发明人： Yoshioka, Hiroshi, Mitsubishi Denki K. K. ,  Kuwada, Hisashi, Mitsubishi Denki K. K.

IPC分类号： F02M37/00 ,  F02M37/10

CPC分类号： F02M37/10 ,  F02M37/106 ,  F02M37/221 ,  F02M69/26 ,  F02M69/54 ,  F02M2037/225 ,  F02M2037/226 ,  Y10T137/7766 ,  Y10T137/7838 ,  Y10T137/87555

摘要： A fuel supply apparatus having a fuel pressure regulator (60) for regulating the pressure of fuel discharged from a fuel pump (4) to a predetermined pressure, the fuel pressure regulator (60) including: a first chamber (62), formed in a case (61), into which fuel discharged from the fuel pump (4) flows, and a second chamber (63), into which the fuel flows via the first chamber (62); a fuel limiting means (64) disposed between the first chamber (62) and the second chamber (63), for limiting fuel flowing from the first chamber (62) into the second chamber (63); a pilot valve unit (65) having a passageway for opening to discharge fuel tank (2), when the fuel pressure in the second chamber (63) is more than a first set pressure (Pp); and a main valve unit (66) having a passageway for opening to discharge fuel into the fuel tank (2) when the fuel pressure in the first chamber (62) is equal to a second set pressure (Pm) between the first set pressure (Pp) and the predetermined pressure (Pi), whereby, in cases where returning flow volume drops, the pressure of the fuel delivered under pressure to the injector does not drop.

摘要翻译： 一种燃料供给装置，具有用于调节从燃料泵（4）排出的燃料的压力达到预定压力的燃料压力调节器（60），所述燃料压力调节器（60）包括：第一室（62） 从燃料泵（4）排出的燃料流入的壳体（61）和经由第一室（62）燃料流过的第二室（63）。 设置在第一室（62）和第二室（63）之间的用于限制从第一室（62）流入第二室（63）的燃料的燃料限制装置（64）。 当所述第二室（63）中的燃料压力大于第一设定压力（Pp）时，具有用于打开以排放燃料箱（2）的通道的先导阀单元（65）; 和主阀单元（66），当第一室（62）中的燃料压力等于第一设定压力（Pm）时，具有用于打开燃料以将燃料排放到燃料箱（2）中的通道的主阀单元（66） Pp）和预定压力（Pi），由此，在返回流量下降的情况下，在压力下输送到喷射器的燃料的压力不会下降。