An accumulator type fuel injector system for an internal combustion engine and a method of operating said system
    2.
    发明公开
    An accumulator type fuel injector system for an internal combustion engine and a method of operating said system 失效
    Kraftstoffeinspritzdüsesystem存储器类型操作的内燃发动机和方法,其系统

    公开(公告)号:EP0728939A1

    公开(公告)日:1996-08-28

    申请号:EP96300167.2

    申请日:1996-01-09

    申请人: PERKINS LIMITED

    IPC分类号: F02M47/02 F02M59/10

    摘要: The invention provides an accumulator type fuel injector system (10) for an i.c. engine comprising an accumulator chamber (12) for containing fuel to be injected via an injector assembly (14). The accumulator chamber (12) is charged with fuel at an elevated pressure via a non-return valve (16) means under control of a solenoid valve means (20) also controlling the injector assembly (14). The arrangement is such that, when the accumulator chamber (12) is being vented via the injector assembly (14), means (30) associated with the chamber (12) subject it to additional venting when the pressure in said chamber (12) has decayed to a predetermined level. Thus, closure of a needle valve (24) and consequently termination of a fuel injection event is determined by fuel pressure which can be varied rather than constructional features of the injector.

    摘要翻译: 本发明提供了在蓄压式燃料喷射器系统(10),用于在I.C. 对于包含燃料发动机蓄能室(12)的,其包括通过在喷射器组件(14)被注入。 下的电磁阀装置(20),从而控制所述喷射器组件(14)的控制的储液室(12)在在经由止回阀升高的压力下充入燃料(16)的装置。 与所述腔室(12)使其受到附加​​的排气相关的当在所述室中的压力(12)具有布置被寻求的是,当储液室(12)被通过所述喷射器组件排气(14)的装置(30) 衰减到预定的水平。 因此,针阀(24),并因此在燃料喷射事件的终止的闭合确定性由燃料压力哪些可以变化,而不是喷射器的结构特征开采。