Invention Grant
- Patent Title: Stall recovery system for a ram air turbine
- Patent Title (中): 冲压式空气涡轮机失速回收系统
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Application No.: US14185347Application Date: 2014-02-20
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Publication No.: US09561862B2Publication Date: 2017-02-07
- Inventor: David G. Bannon , William E. Seidel
- Applicant: Hamilton Sundstrand Corporation
- Applicant Address: US CT Windsor Locks
- Assignee: Hamilton Sundstrand Corporation
- Current Assignee: Hamilton Sundstrand Corporation
- Current Assignee Address: US CT Windsor Locks
- Agency: Kinney & Lange, P.A.
- Main IPC: B64D41/00
- IPC: B64D41/00

Abstract:
In one aspect, a ram air turbine stall recovery system includes a ram air turbine, a hydraulic pump powered by the ram air turbine with the hydraulic pump having a pump inlet and a pump outlet, an electric generator powered by the ram air turbine, a bypass line that connects the pump outlet to the pump inlet, a bypass valve located on the bypass line between the pump outlet and the pump inlet; and a controller responsive to an input signal that indicates a potential stall condition of the ram air turbine. The controller causes the bypass valve to open to allow a hydraulic fluid to flow through the bypass line in order to reduce a pressure within the hydraulic pump.
Public/Granted literature
- US20150232194A1 STALL RECOVERY SYSTEM FOR A RAM AIR TURBINE Public/Granted day:2015-08-20
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