Invention Application
- Patent Title: REVERSE FLOW RELIEF VALVE
- Patent Title (中): 反向流动止回阀
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Application No.: US13915783Application Date: 2013-06-12
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Publication No.: US20140366964A1Publication Date: 2014-12-18
- Inventor: Josh Kamp , Scott W. Simpson , John M. Dehais
- Applicant: HAMILTON SUNDSTRAND CORPORATION
- Main IPC: F16K31/124
- IPC: F16K31/124

Abstract:
A bleed valve system includes a bleed valve, a valve regulator, a valve actuator and a reverse flow relief valve. The bleed valve is opened and closed to control a flow of bleed air from an upstream inlet to a downstream outlet. The valve regulator provides a servo pressure used to regulate the position of the bleed valve, and the valve actuator is mechanically connected to open/close the bleed valve based on the servo pressure provided by the valve regulator. The reverse flow relief valve compares a pressure upstream of the bleed valve to a pressure downstream of the bleed valve and in response to the downstream pressure exceeding the upstream pressure creates a fluid communication path between the servo pressure and an ambient pressure to decrease the servo pressure such that the bleed valve is closed.
Public/Granted literature
- US09273795B2 Reverse flow relief valve Public/Granted day:2016-03-01
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