| 摘要 |
<p>In a fuel injection pump during the pumping stroke of the cycle, the contact load between the surfaces of the tappet (401) and plunger (400) can be very high leading to lubrication breakdown and fretting wear at the contact area surfaces. The present invention reduces wear rates by flushing fresh lubricant in the contact area gap (420) before each load cycle of the pump. Therefore, a resilient disc-like spring seat (403) provides the wanted gap (420) by a concave profile on its underside causing the spring seat to flex against the pumping stroke direction.</p> |
