会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • PLUNGER PUMP OF FUEL INJECTION PUMP
    • 燃油喷射泵排气泵
    • WO02048537A1
    • 2002-06-20
    • PCT/JP2001/010812
    • 2001-12-10
    • F02M39/00F02M41/06F02M59/26F02M41/02
    • F02M41/06F02M39/005F02M59/265
    • A plunger pump applied to a fuel injection pump, desirably, to a distributor type fuel injection pump (1), wherein a main port (31) for sucking and discharging fuel and a sub port (32) having a diameter smaller than that of the main port (31) and used exclusively for overflow are formed in a plunger barrel (17), an upper main lead (36) functioning to start the force-feeding of fuel at a high speed is formed, as a lead for communication with the main port (31), at the top end part of a plunger (7), a lower main lead (35) functioning to end the force-feeding of fuel is formed on the underside of the upper main lead (36), an upper sub lead (37) functioning to start the force-feeding of fuel at a low speed is formed, as a lead for communication with the sub port (32), at the top end part of the plunger (7), and lead angles generally identical to each other are formed for the upper main lead (36) and the upper sub lead (37).
    • 适用于燃料喷射泵的柱塞泵,优选地应用于分配器式燃料喷射泵(1),其中,用于吸入和排出燃料的主端口(31)和直径小于 在柱塞筒(17)中形成专门用于溢流的主端口(31),形成用于以高速启动燃料加力的上主引导件(36),作为与 主端口(31),在柱塞(7)的顶端部分,在主主导管(36)的下侧形成用于结束燃料加力功能的下主导线(35),上端 在柱塞(7)的顶端形成作为用于与副端口(32)连通的引导件,以低速开始燃料的强制供给的副引导件(37) 对于上主引线(36)和上副引线(37)形成彼此相同的部件。
    • 4. 发明申请
    • APPARATUS FOR CONTROLLING A FUEL SYSTEM OF AN INTERNAL COMBUSTION ENGINE
    • 用于控制内燃机燃油系统的装置
    • WO99045260A2
    • 1999-09-10
    • PCT/US1999/004557
    • 1999-03-02
    • F02M41/00F02D41/22F02D41/40F02M41/02F02M59/36F02M63/00F02M
    • F02M59/366F02D41/221F02D41/3845F02D41/406F02D2041/227F02M41/02F02M2200/40Y02T10/44
    • A fuel system includes an electronically controllable high pressure fuel pump operable to supply high pressure fuel from a lower pressure fuel source to a high pressure fuel collection chamber having a pressure sensor associated therewith. The fuel collection chamber feeds an electronically controllable valve operable to dispense the high pressure fuel to a fuel distribution unit supplying fuel to a number of fuel injectors. A control computer is provided for controlling the high pressure fuel pump and valve in response to requested fueling, engine speed and fuel pressure provided by the pressure sensor. The control computer is normally operable to drive the fuel pump as a function of fuel pressure and a reference pressure, which is based on requested fueling, and to control the valve as a function of commanded fueling, which is a function of engine speed and a reference speed based on requested fueling, and fuel pressure. In a first limp home mode, the control computer is operable to drive the fuel pump as a function of fuel pressure and commanded fueling if abnormal operation of the high pressure fuel pump is detected. In this mode, the valve is controlled only as a function of fuel pressure. In a second limp home mode, the control computer is operable to drive the fuel pump with a predicted fuel pump command based on the fuel command and engine speed, if abnormal operation of the pressure sensor is detected. In this mode, the valve is controlled as a function of the fuel command and the reference pressure or a default pressure.
    • 燃料系统包括电子可控的高压燃料泵,其可操作以将来自低压燃料源的高压燃料供应到具有与其相关联的压力传感器的高压燃料收集室。 燃料收集室供应电子可控阀,可操作以将高压燃料分配到向多个燃料喷射器供应燃料的燃料分配单元。 提供控制计算机,用于响应于由压力传感器提供的所需的加油,发动机转速和燃料压力来控制高压燃料泵和阀。 控制计算机通常可操作地驱动燃料泵作为燃料压力和基于所要求的加燃料的参考压力的函数,并且根据作为发动机转速的函数来控制该阀作为指令的加油功能, 基于所需加油的参考速度和燃料压力。 在第一跛行家庭模式中,如果检测到高压燃料泵的异常操作,则控制计算机可操作地作为燃料压力的函数驱动燃料泵和指令的燃料。 在这种模式下,阀门仅作为燃油压力的控制。 在第二跛行模式中,如果检测到压力传感器的异常操作,则控制计算机可操作以基于燃料命令和发动机速度的预测燃料泵命令驱动燃料泵。 在此模式下,根据燃油指令和参考压力或默认压力来控制阀门。