| 摘要 |
<p>A fuel injection pumping apparatus includes a plunger on which is formed an inclined control groove which during inward movement of the plumger co-operates with a spill port to terminate injection of fuel. The plunger is provided with a barrier groove in which fuel leaking along the small clearance defined between the plunger and the wall of the cylinder in which it is mounted, collects. The accumulated fuel is ported to a low pressure source by means of an inclined groove which communicates with the circumferential groove and inclined groove registers during inward movement of the plunger with an additional spill port.</p> |
