Patent · US Active

Valve assembly, in particular for space travel drive systems, which is closed when not actuated

US9746092B2 · kind B2 · utility

1Cited by

4References

18Claims

0Family size

Assignee

AIRBUS DS GMBH · DE

Inventors

Markus Wolf · Oftersheim, DE
Thomas Maier · Grimmen, DE
Stephan Kraus · Oedheim, DE

Key dates

Filing date	Mar 10, 2015
Grant date	Aug 29, 2017
Priority date	—
Expiry date	May 29, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/1692
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A valve assembly includes an inlet and an outlet, which open into a working chamber of the valve assembly, and an actuator. In a non-actuated state of the actuator, a flow passage between the inlet and the outlet is blocked. The actuator is optionally a shape-memory actuator that can be actuated one time or comprises a shape-memory actuator, which suddenly changes its external shape upon reaching a conversion temperature, which is dependent on the alloy composition thereof, and which can be generated by a controllable electrical heating device of the valve assembly. The actuator irreversibly destroys a pipe element separating the inlet from the outlet in the working chamber upon actuation, whereby the inlet and the outlet are connected to one another with respect to flow via the working chamber.

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