Patent · US Expired

Multiway valve

US7140391B2 · kind B2 · utility

3Cited by

11References

8Claims

0Family size

Assignee

BSH Bosch und Siemens Hausgeräte GmbH · DE

Inventors

Hans-Frieder Eberhardt · Biberach, DE
Rolf Kordon · Giengen an der Brenz, DE
Michael Neumann · Therwil, CH
Udo Wenning · Giengen an der Brenz, DE

Key dates

Filing date	Jun 21, 2004
Grant date	Nov 28, 2006
Priority date	—
Expiry date	Jun 21, 2024

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/87788
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A multiway valve contains a housing having several inlets and outlets and a chamber. Several seats are provided and each is respectively associated with one inlet or one outlet. A closure element is provided which can move between the seats and at least one actuator is provided in the form of an element made of a form memory alloy, able to displace the closure element from one of the seats when heating occurs. A spring element presses the closure element against each respective seat that it engages.

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