Patent ID: 9528609
Filing Date: 2016-12-27
CPC Classification: F02M,F04B,F16K

Claim Text:
1. A high-pressure pump, comprising: a plunger; a cylinder having a bottom cylindrical shape, supporting the plunger reciprocally in an axial direction, and having a pressure chamber with a volumetric capacity that changes when the plunger moves; a fuel suction portion having a valve, the valve comprising; a valve body; a valve seat having an inner hole portion located inward in a radial direction of the valve body and an outer hole portion located outward in a radial direction of the valve body with respect to the inner hole portion; a valve member that is configured to abut against and move away from the valve seat; and a driving unit that is configured to inhibit movement of the valve member toward the valve seat, wherein: the outer hole portion is an arcuate hole; and the driving unit is inserted in the inner hole portion.