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1. 发明授权

US5263457A Fuel injection pump for internal combustion engines 失效
标题翻译：内燃机燃油喷射泵
公开(公告)号：US5263457A
公开(公告)日：1993-11-23
申请号：US5932
申请日：1993-01-15
申请人： Karl Konrath , Claus Koester , Christin Taudt , Andre Brunel , Pierre Lauvin , Francois Quarret
发明人： Karl Konrath , Claus Koester , Christin Taudt , Andre Brunel , Pierre Lauvin , Francois Quarret
IPC分类号： F02D1/18 , F02M37/04
CPC分类号： F02D1/183
摘要： A fuel injection pump for internal combustion engines has an adjusting piston for adjusting an injection instant, is acted upon by a return force and delimits a working space, a control slide delimiting a pressure space in the adjusting piston and displaceable in the adjusting piston counter to a return force by a pressure-source supply pressure in the pressure space and controlled as a function of speed of the engine so that the working space can be connected to a pressure source or to a relief space, and so the supply pressure in the pressure space is additionally controlled as a function of further operating parameters of the engine. A feed pump delivering at a rate proportional to speed has a delivery side connected to the pressure space, a pressure line, containing a restriction, directly connects the delivery side of the feed pump to the pressure space so that the pressure is directly connected with the feed pump exclusively by the pressure line and is not connected with the inlet chamber. A discharge line is arranged for relieving the pressure space downstream of the restriction and having an element arranged in the discharge line for controlling the control pressure and influencing a flow a fuel from a delivery line, a pressure maintaining valve is arranged in the delivery line and enable passage to the inlet chamber only at a certain pressure at the delivery line, and a pressure control valve relieves the inlet chamber.
摘要翻译：用于内燃机的燃料喷射泵具有用于调节喷射瞬间的调节活塞，由返回力作用并限定工作空间，限制调节活塞中的压力空间并在调节活塞中可移位的控制滑块通过在压力空间中的压力源供应压力的回复力并作为发动机的速度的函数来控制，使得工作空间可以连接到压力源或释放空间，因此压力中的供给压力作为发动机的进一步操作参数的函数另外控制空间。以与速度成比例的速率输送的进料泵具有连接到压力空间的输送侧，包含限制的压力线直接将进料泵的输送侧连接到压力空间，使得压力与压力空间直接连接进料泵专门由压力管路连接，不与入口室相连。排放管线被设置用于减轻限制下游的压力空间并且具有设置在排出管线中的元件，用于控制控制压力并影响来自输送管线的燃料的流动，在输送管线中布置有保压阀，使得仅在输送管线处以一定压力通向入口室，并且压力控制阀释放入口室。

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