Patent · US Active

Controlled three-way proportional valve unit

US9971359B2 · kind B2 · utility

0Cited by

6References

10Claims

0Family size

Assignee

HOERBIGER AUTOMATISIERUNGSTECHNIK HOLDING GMBH · DE

Inventors

Daniel HALLER · Stuttgart, DE
Max Schrobenhauser · Peiting, DE
Jochen Schaible · Altensteig, DE

Key dates

Filing date	Mar 6, 2015
Grant date	May 15, 2018
Priority date	—
Expiry date	Apr 5, 2036

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/87201
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

The invention relates to a controlled three-way proportional valve unit comprising: a valve assembly with two individual valves; an actuating device actuating valves of the valve assembly; and a control unit acting upon the actuating device and having a control signal input, the valves of the valve assembly being designed as poppet valves arranged on opposite sides and having counter-rotatable valve spindles. The valve spindles are prestressed relative each other in opposite directions by a prestressing element such that, when the actuating unit is inactive, a first poppet valve is open and the second poppet valve is closed. The actuating device comprises an actuator common to both poppet valves, acts upon the two valve spindles and changes the position of the valve spindles counter to the effect of the prestressing element.

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