Pop-off valve for an aircraft engine having a turbocharger control system and propeller control system by stepper motor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 8, 2006
Grant Date -
Dec 23, 2004
app pub date -
Feb 27, 2004
filing date -
Aug 21, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pop-off valve that, in one embodiment, provides overboost protection for an aircraft engine, is described. The pop-off valve includes a housing adapted for connection to a portion of a drive device containing a pressure medium. It also includes a pressure body movably disposed in the housing such that, in operation, a first side of the pressure body is exposed to the pressure medium while a second side is exposed to a reference force. In addition, the pop-off valve incorporates a control device adapted to receive at least one signal concerning at least one operating parameter of the drive device and, in response to the operating parameter signal, to control the reference force. As a result of movement of the pressure body within the housing, at least one first opening in the housing is exposed, permitting venting of the pressure medium.
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