Patent · US Expired

Valve for controlling fluids

US6076800A · kind A · utility

14Cited by

5References

6Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Rudolf Heinz · Renningen, DE
Dieter Kienzler · Leonberg, DE
Roger Potschin · Brackenheim, DE
Klaus-Dieter Schmoll · Lehrensteinsfeld, DE
Friedrich Boecking · Stuttgart, DE

Key dates

Filing date	Oct 30, 1998
Grant date	Jun 20, 2000
Priority date	—
Expiry date	Oct 30, 2018

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02M2547/003
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A valve for controlling fluids, in which the valve member is adjusted by means of an actuating piston, which, together with a piezoelectric actuator piston, encloses a pressure chamber. In addition, the actuator piston and an affiliated piezoelectric stack are disposed in parallel radially next to the actuating piston, wherein upon excitation of the piezoelectric stack or adjustment of the actuator piston, the actuating piston executes a motion counter to the adjusting movement, and with its valve member, opens a relief bore.

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