Patent ID: 9512836
Filing Date: 2016-12-06
CPC Classification: F02M,F04B,F16K

Claim Text:
1. A fuel pump for an internal combustion engine, comprising: a pump housing; and a pumping unit mounted in the pump housing, the pumping unit including: a pumping barrel having a longitudinal axis, the pumping barrel defining a barrel bore, the barrel bore extending along the longitudinal axis, a pumping plunger positioned within the barrel bore so as to define a pumping chamber, the pumping plunger mounted for reciprocal movement through an intake stroke to receive fuel in the pumping chamber and a pressure stroke to pump fuel under high pressure from the pumping chamber, an inlet check valve cavity in fluid communication with the pumping chamber, an inlet check valve positioned in the inlet check valve cavity, the inlet check valve including an inlet check valve plunger mounted for reciprocal movement in the inlet check valve cavity, the inlet check valve plunger defining an inlet plunger passage in fluid communication with the inlet check valve cavity, and an inlet disc positioned between the pumping chamber and the inlet check valve cavity, the inlet disc including: