Patent · US Active

Pneumatic valve

US11236839B2 · kind B2 · utility

4Cited by

10References

18Claims

0Family size

Assignee

Conti Temic microelectronic GmbH · DE

Inventors

Michael Beuschel · Stammham, DE
Alexander Kerler · Eichstätt, DE
Johann Steinberger · Brunnen, DE

Key dates

Filing date	Sep 20, 2017
Grant date	Feb 1, 2022
Priority date	—
Expiry date	Oct 24, 2038

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF03G7/06143
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A pneumatic valve, including a valve housing with an air chamber with one or more air ports. A respective air port of at least one of the air ports can be opened and closed by a movable valve flap which is mechanically coupled to a shape memory alloy. The SMA element deforms as a result of supplying electrical heating current and effects a predefined movement of the valve flap for opening or closing the respective air port. The deformation of the SMA element is reversed when the supply of the electrical heating current ends. The valve flap has a leaf spring. The leaf spring is held rotationally fixedly relative to the valve housing. The leaf spring interacts with the SMA element such that a stroke of the SMA element caused by the deformation is converted into a stroke of the valve flap by elastic bending of the leaf spring.

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