Patent · US Active

Quantity control valve and high-pressure pump with quantity control valve

US9791064B2 · kind B2 · utility

0Cited by

0References

13Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Rainer Wilms · Markgröningen, DE
Matthias Maess · Eppelheim, DE
Dominik Brunner · Sachsenheim, DE

Key dates

Filing date	Nov 15, 2012
Grant date	Oct 17, 2017
Priority date	—
Expiry date	May 14, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/85986
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A quantity control valve comprises a valve needle configured to move in an axial direction, a damping chamber having a wall, and a valve element delimiting the damping chamber. The valve needle is configured to move the valve element in an opening direction. A gap is defined between the wall of the damping chamber and the valve element. The gap has at least one recess and connects the damping chamber to a flow duct.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.