| 摘要 |
A fuel injection pump for internal combustion engines, which has improved and simplified means for a throttled preliminary shut-off to prevent cavitation in the injection system and late injections by the fuel injection valves. The pump piston is provided with two recesses that terminate in chamfered control edges and control the end of the delivery cycle and also contains a throttle bore, which has a cross bore, and connects the first recess, which is opened shortly before the other recess, with the pump operating chamber by means of a longitudinal bore in the pump piston. The second recess has an unthrottled connection to the pump operating chamber.
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