公开(公告)号：US3829014A

公开(公告)日：1974-08-13

申请号：US31026972

申请日：1972-11-29

Applicant: STANADYNE INC ,  DAVIS C

Inventor： DAVIS C ,  ROOSA V

IPC: F02M61/10 ,  F02M61/12 ,  F02M61/16 ,  F02M55/00

CPC classification number: F02M61/12 ,  F02M61/165

Abstract: A precision fuel injector having an inwardly opening pressure operated valve positioned in a bore forming a valve chamber and guided for reciprocal movement to open and close the valve wherein the valve guide at the end of the valve chamber opposite the valve tip is provided with a sleeve extending into the valve chamber to provide an integral filter. The sleeve is interposed between the fuel inlet and the valve chamber and provides communication therebetween through a pair of annular clearances having a width which is one-half or less of the diameter of the discharge orifices of the injector to trap solid particles and prevent the blockage thereof. The filter construction retains the trapped particles in the flow path where the velocity of fuel flow is maximum to subject them to the repetitive high pressure hydraulic forces as sequential measured charges of fuel are delivered to the injector to hammer them against the hardened metal edge of the filter and pulverize them to render the filter self-cleaning.

Abstract translation: 精密燃料喷射器具有向内打开的压力操作的阀，其定位在形成阀室的孔中，并被引导以往复运动以打开和关闭阀，其中在阀腔的与阀头相对的端部处的阀导向器设置有套筒 延伸到阀室中以提供整体式过滤器。 套筒插入在燃料入口和阀室之间，并通过一对环形间隙提供连通，该环形间隙的宽度为喷射器的排放口的直径的一半或更小以捕获固体颗粒并防止堵塞 其中。 过滤器结构保留了流动路径中的被捕获的颗粒，其中燃料流速度最大，以使其受到重复的高压液压力，因为连续测量的燃料进料被输送到喷射器以将它们压在固化的金属边缘上 过滤并粉碎它们以使过滤器自清洁。

公开(公告)号：US3771506A

公开(公告)日：1973-11-13

申请号：US3771506D

申请日：1972-06-07

Applicant: STANADYNE INC

Inventor： DAVIS C

IPC: F02D1/18 ,  F02M41/14 ,  F02M39/00 ,  F04B13/02

CPC classification number: F02M41/1405 ,  F02M41/1416

Abstract: A fuel injection pump is provided with timing control in which a hollow cap removably mounted in a bore of the fuel pump forms a pressure chamber in which the advance piston is axially movable for controlling the timing of injection. An annulus around the cap provides a passage for the delivery of pressurized fuel to the pressure chamber and a flat reed valve in the pressure chamber overlying the inlet port of the pressure chamber isolates the ring seals for sealing the annulus from the repetitive high pressure pulses imposed when the pumping plungers move past the cam lobes during pumping strokes which otherwise may cause the seals to be extruded into the clearance gap between the cap and the bore.

Abstract translation: 燃料喷射泵设置有定时控制，其中可拆卸地安装在燃料泵的孔中的中空盖形成压力室，其中前进活塞可轴向移动，以控制喷射时间。 盖周围的环形空间提供了将加压燃料输送到压力室的通道，并且压力室中压在压力室的入口上方的平板簧阀隔离环形密封件，用于将环形空间与施加的重复高压脉冲密封 当泵送柱塞在泵送冲程期间移动经过凸轮凸角时，否则可能导致密封件被挤压到盖和孔之间的间隙中。