Patent · US Active

Device for choking a fluid flow and corresponding piston pump for delivering fluids

US10247176B2 · kind B2 · utility

0Cited by

4References

7Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Stephan Steingass · Bornheim, DE
Oliver Gaertner · Abstatt, DE
Oliver Hennig · Löwenstein, DE
Vaclav Kocourek · Beilstein, DE

Key dates

Filing date	Nov 5, 2015
Grant date	Apr 2, 2019
Priority date	—
Expiry date	Jun 27, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7847
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A device for choking a fluid flow, with a pot-like base body, in the base of which a first passage opening is arranged, and a closing body guided axially moveably in the pot-like base body against a spring force of a spring element and having a second passage opening that forms a static choke point with a predefined fixed opening cross section. The closing body in combination with the spring element and the first passage opening forms a dynamic choke point with a dynamic opening cross section that is variably adjustable depending on a pressure difference.

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