主权项 |
1. A valve device for a high-pressure pump performing a metering stroke in which a part of fuel suctioned into a pressurization chamber from a fuel gallery, the valve comprising:
a housing which forms a contour of the valve; a cylindrical seat body disposed in the housing and having a valve seat therein; a valve having a seat surface, the seat surface capable of sitting on the valve seat by a fuel pressure in the pressurization chamber so as to interrupt a hydraulic communication between the pressurization chamber and the fuel gallery; a valve stopper having a regulation portion which is arranged in the pressurization chamber side of the valve; and a cylindrical sleeve disposed around the regulation portion, wherein the cylindrical sleeve protrudes from the regulation portion toward the valve in such a manner that an open end outer diameter is larger than an outer diameter of the valve. |