Shape memory alloy active hatch vent
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United States of America Patent
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-
Sep 2, 2014
Grant Date -
Dec 30, 2010
app pub date -
Nov 4, 2009
filing date -
Jun 26, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A vent assembly is disposed within an interior space of a vehicle for opening and closing fluid communication between the interior space and an exterior of the vehicle. The vent assembly includes a housing defining a plurality of openings and a plurality of vanes disposed in the openings. An actuator mechanism moves the vanes between an open position and a closed position, and includes a shaped memory alloy (SMA) member for actuating the vanes between the open and closed positions. The SMA member is activated when a hatch of the vehicle is open to move the vanes into the open position and thereby open fluid communication between the interior space and the exterior to alleviate excessive air pressure buildup during closure of the hatch.
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