Single-actuation valve arrangement for aerospace component, and aerospace component
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United States of America Patent
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Jun 5, 2018
Issued Date -
Sep 10, 2015
app pub date -
Mar 4, 2015
filing date -
Mar 6, 2014
priority date (Note) -
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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.
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