Patent · US Active

Spring element and corresponding piston pump for delivering fluids

US9394898B2 · kind B2 · utility

2Cited by

2References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Reiner Fellmeth · Besigheim, DE
Juergen Haecker · Neu-Anspach, DE
Oliver Gaertner · Abstatt, DE
Heiko Jahn · Tamm, DE
Marc Zimmermann · Sonthofen, DE
Harald Hermann · Friolzheim, DE
Rolf Stotz · Leinfelden, DE
Daniel Gosse · Berlin, DE

Key dates

Filing date	Nov 22, 2011
Grant date	Jul 19, 2016
Priority date	—
Expiry date	Nov 10, 2032

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B2205/172
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A spring element includes a disc-shaped basic body, in which at least one spring bridge is inserted. The basic body has at least one dynamic throttle point to throttle a fluid flow. The basic body has a resilient configuration in a region of the at least one throttle point. Accordingly, an opening cross section of the at least one throttle point is configured to be set variably depending on a pressure difference.

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