Patent · US Active

Single-actuation valve arrangement for aerospace component, and aerospace component

US9989039B2 · kind B2 · utility

0Cited by

5References

17Claims

0Family size

Assignee

AIRBUS DS GMBH · DE

Inventors

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

Key dates

Filing date	Mar 4, 2015
Grant date	Jun 5, 2018
Priority date	—
Expiry date	Apr 22, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K31/025
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A valve arrangement for an aerospace component includes an inlet, an outlet, and an actuator that can be actuated by a heating element. In a non-actuated state of the actuator, the valve is open to allow flow between the inlet and the outlet. The actuator is a single-use effect shape memory actuator that is compressed in the martensitic state along a longitudinal axis of the actuator and integrated into the valve arrangement. Through the activation of the heating element upon reaching a predetermined transformation temperature, the actuator undergoes a change in length, whereby it is gradually pressed against a seal seat that is embodied at the inlet or the outlet.

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