Engine fuel supply system
    7.
    发明授权
    Engine fuel supply system 有权
    发动机燃油供应系统

    公开(公告)号:US08151770B2

    公开(公告)日:2012-04-10

    申请号:US12678863

    申请日:2008-09-10

    IPC分类号: F02M23/00

    摘要: An engine fuel supply system is provided at a reduced cost by using a HC dosing pump that supplies fuel into an exhaust pipe also as a pump for a cylinder fuel supply device. When a signal is generated to command air removal from a cylinder fuel supply passage, the dual-purpose pump is activated, a first on-off valve assumes an open state, and a second on-off valve assumes a close state, so that the fuel is supplied from the dual-purpose pump to the cylinder fuel supply passage via an air-removal fuel supply passage. When a signal is generated to command fuel supply into the exhaust pipe, the dual-purpose pump is activated, the second on-off valve assumes the open state, and the first on-off valve assumes the close state, so that the fuel is supplied from the dual-purpose pump to the exhaust pipe via the exhaust-pipe fuel supply passage.

    摘要翻译: 通过使用将燃料供给到作为汽缸燃料供给装置的泵的排气管的HC计量泵,以较低的成本提供发动机燃料供应系统。 当产生用于指示从气缸燃料供给通道排出空气的信号时,两用泵被启动,第一开关阀处于打开状态,并且第二开关阀处于关闭状态,使得 燃料通过排气燃料供给通道从双用泵供给到气缸燃料供给通道。 当产生用于指示燃料供应到排气管中的信号时,两用泵被启动,第二开关阀处于打开状态,并且第一开关阀处于关闭状态,使得燃料为 通过排气管燃料供给通路从双用泵供给排气管。

    ENGINE FUEL SUPPLY SYSTEM
    8.
    发明申请
    ENGINE FUEL SUPPLY SYSTEM 有权
    发动机燃油供应系统

    公开(公告)号:US20100212641A1

    公开(公告)日:2010-08-26

    申请号:US12678863

    申请日:2008-09-10

    IPC分类号: F02M37/20 F02M37/04 F01N3/10

    摘要: An engine fuel supply system is provided at a reduced cost by using a HC dosing pump that supplies fuel into an exhaust pipe also as a pump for a cylinder fuel supply device. When a signal is generated to command air removal from a cylinder fuel supply passage, the dual-purpose pump is activated, a first on-off valve assumes an open state, and a second on-off valve assumes a close state, so that the fuel is supplied from the dual-purpose pump to the cylinder fuel supply passage via an air-removal fuel supply passage. When a signal is generated to command fuel supply into the exhaust pipe, the dual-purpose pump is activated, the second on-off valve assumes the open state, and the first on-off valve assumes the close state, so that the fuel is supplied from the dual-purpose pump to the exhaust pipe via the exhaust-pipe fuel supply passage.

    摘要翻译: 通过使用将燃料供给到作为汽缸燃料供给装置的泵的排气管的HC计量泵,以较低的成本提供发动机燃料供应系统。 当产生用于指示从气缸燃料供给通道排出空气的信号时,两用泵被启动,第一开关阀处于打开状态,并且第二开关阀处于关闭状态,使得 燃料通过排气燃料供给通道从双用泵供给到气缸燃料供给通道。 当产生用于指示向排气管供给燃料的信号时,两用泵被启动,第二开关阀处于打开状态,并且第一开关阀处于关闭状态,使得燃料为 通过排气管燃料供给通路从双用泵供给排气管。