Patent · US Active

Piston pump

US8272858B2 · kind B2 · utility

7Cited by

3References

19Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andre Bollwerk · Steinheim an der Murr, DE
Wolfgang Schuller · Cleebronn, DE
Horst Beling · Heilbronn, DE
Juergen Wagner · Nittendorf, DE
Michael Schuessler · Seckach, DE
Stefan Hallermann · Kempten, DE

Key dates

Filing date	May 22, 2007
Grant date	Sep 25, 2012
Priority date	—
Expiry date	Sep 4, 2029

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04B53/126
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

The invention relates to a piston pump for conveying fluids. The piston pump includes a piston, and a pressure chamber located between an intake valve and a discharge valve. The intake valve is arranged between the pressure chamber and a low-pressure zone of the piston pump. The intake valve has a valve body, a closing element, a device for preloading the closing element, and a device for fastening the intake valve to the piston. The fastening device encompasses at least two fastening elements which protrude from the valve body toward the piston. The fastening elements are positioned at a distance from one another, and are fitted with inlets therebetween for supplying fluid. The invention further relates to a piston pump having an intake valve without a spring-biased element.

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