公开(公告)号：US10683825B1

公开(公告)日：2020-06-16

申请号：US16208717

申请日：2018-12-04

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Robert B. Perry ,  Jason C. Short ,  Youssef Kazour

IPC: F04B49/22 ,  F02M59/18 ,  F02D41/38 ,  F02M59/36 ,  F04B35/00 ,  F04B49/06 ,  F02M63/00

Abstract: A fuel pump includes a fuel pump housing with a pumping chamber; a pumping plunger which reciprocates within a plunger bore; and an inlet valve assembly. The inlet valve assembly includes a check valve member which is moveable between an unseated position which provides fluid communication between the pumping chamber and a fuel supply passage and a seated position which prevents fluid communication between the pumping chamber and the fuel supply passage; and a solenoid assembly which includes a wire winding; a pole piece; an armature which is moveable between a first position when the wire winding is not energized and a second position when the wire winding is energized; a return spring which biases the armature away from the pole piece; and a control rod which is moveable along the inlet valve axis independently of the armature.

公开(公告)号：US20200173391A1

公开(公告)日：2020-06-04

申请号：US16208717

申请日：2018-12-04

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： Robert B. Perry ,  Jason C. Short ,  Youssef Kazour

IPC: F02D41/38 ,  F02M59/36 ,  F04B35/00 ,  F04B49/06 ,  F04B49/22 ,  F02M63/00

Abstract: A fuel pump includes a fuel pump housing with a pumping chamber; a pumping plunger which reciprocates within a plunger bore; and an inlet valve assembly. The inlet valve assembly includes a check valve member which is moveable between an unseated position which provides fluid communication between the pumping chamber and a fuel supply passage and a seated position which prevents fluid communication between the pumping chamber and the fuel supply passage; and a solenoid assembly which includes a wire winding; a pole piece; an armature which is moveable between a first position when the wire winding is not energized and a second position when the wire winding is energized; a return spring which biases the armature away from the pole piece; and a control rod which is moveable along the inlet valve axis independently of the armature.