A PUMP ASSEMBLY AND A VALVE

摘要

The present disclosure relates to a pump assembly used in a fuel injection system. The pump assembly includes a non-return valve that assists in engine priming. The pump assembly further includes a first high pressure pump and a second pump fluidly connected to supply fluid to the first pump. The non-return valve is fluidly connected between a first high pressure pump and the second pump and allows fluid to flow through the fluid passageway from the second pump to the first pump, and prevents fluid from flowing through the fluid passageway from the first pump to the second pump.