Single-Actuation Valve Arrangement for Aerospace Component, and Aerospace Component

摘要

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.

主权项

1. A one-time actuated valve a arrangement, comprising:
an inlet; an outlet; an actuator actuatable by a heating element, wherein, in a no actuated state of the actuator, the valve is open to allow a flow between the inlet and the outlet, wherein the actuator is a single-use effect shape memory actuator compressed in the martensitic state along a longitudinal axis of the actuator and integrated into the valve arrangement, and which undergoes a change in length as a result of an activation of the heating element when a predetermined transformation temperature is reached so that it is gradually pressed against a seal seat arranged at the inlet or the outlet.