Patent · US Active

Proportional valve

US10474169B2 · kind B2 · utility

4Cited by

16References

11Claims

0Family size

Assignee

HOERBIGER FLOW CONTROL GMBH · DE

Inventors

Marcus Grödl · Altdorf, DE
Jochen Schaible · Altensteig, DE
Daniel HALLER · Stuttgart, DE
Collin Dymel · Stuttgart, DE
Benedikt Hildebrandt · Echterdingen, DE
Györg Molnar · Waldenbuch, DE
Sebastian NEISS · Stuttgart, DE

Key dates

Filing date	Aug 8, 2018
Grant date	Nov 12, 2019
Priority date	—
Expiry date	Aug 8, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/87209
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A proportional valve is provided having a pilot control valve that can be controlled by means of a control signal and having a booster valve that can be actuated by means of the pilot control valve. The proportional valve has a compressed-air connection for connecting a compressed-air supply, a working connection, and an air-removal connection. The booster valve has three valve elements, which are arranged one after the other and can each be moved in an axial direction against a spring force.

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