Aircraft hydraulic air bleed valve system

摘要

An aircraft hydraulic air bleed valve system having an air vent valve connected to an electronic controller where the opening of the air vent valve is permitted only when the aircraft is in a pre-determined flight mode where the aircraft flight mode is determined by a gyroscope connected to the controller.

主权项

1. An air bleed valve system for an aircraft hydraulics system comprising:
a gyroscope for measuring the orientation and flight mode of the aircraft; a gyroscope control system for analyzing signals from the gyroscope and generating an aircraft signal when the aircraft is in a flight orientation and flight mode that is suitable for the bleeding of excess air from the aircraft hydraulic system; a liquid level sensor mounted in a housing to measure the level of hydraulic oil within said housing, said liquid level sensor generating a level signal when said excess is in sufficient quantity to require bleeding; an air bleed valve controller electrically connected to said liquid level sensor and to said gyroscope control system, said air bleed valve controller generating an activation signal when said aircraft signal and said level signal indicate that said excess air requires venting; and an air vent valve mounted in said housing, said air vent valve opening in response to said activation signal and venting said excess air outside of said housing; wherein said gyroscope is a laser ring gyroscope and a stand alone unit.