公开(公告)号：US3885895A

公开(公告)日：1975-05-27

申请号：US46244874

申请日：1974-04-19

Applicant: BOSCH GMBH ROBERT

Inventor： STAUDT HEINRICH ,  HOFMANN EBERHARD ,  ECKELL WOLFGANG ,  KNORRECK PETER

IPC: F02M55/00 ,  F02M59/48 ,  F04B7/04 ,  F04B37/10

CPC classification number: F02M59/485 ,  F02M55/001

Abstract: There is described a fuel injection pump which comprises at least one preassembled group of pump elements contained in a flanged sleeve that is fitted into a mounting bore of a pump housing and clamped thereto by a securing flange forming part of the flanged sleeve. The pump elements include a pump piston axially slidably and angularly adjustably disposed in a cylinder bore of the flanged sleeve. The pump elements also include a pressure valve, the stationary valve body of which is clamped inside the flanged sleeve by a threaded nipple engaging an internal thread provided in a terminal portion of said flanged sleeve. To relieve the flanged sleeve of the clamping stresses, particularly in the zone of the cylinder bore, the securing flange is permanently affixed to the flanged sleeve in the zone of said internal thread and axially spaced from said valve body.

Abstract translation: 描述了一种燃料喷射泵，其包括容纳在带凸缘的套筒中的至少一个预组装的泵元件组，其被装配到泵壳体的安装孔中并通过形成凸缘套筒的一部分的固定凸缘而夹紧在泵壳体的安装孔中。 泵元件包括轴向可滑动且可角度地调节地布置在带凸缘套筒的气缸孔中的泵活塞。 泵元件还包括压力阀，其固定阀体通过与设置在所述带凸缘套筒的端子部分中的内螺纹接合的螺纹接头夹在凸缘套筒内。 为了缓解带凸缘的套筒的夹紧应力，特别是在气缸孔的区域中，固定凸缘永久地固定在所述内螺纹的区域中的带凸缘的套筒上并与所述阀体轴向间隔开。