Invention Grant
- Patent Title: Manually actuated hydraulic circuit for ram air turbine (RAT) restow
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Application No.: US16791139Application Date: 2020-02-14
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Publication No.: US11858650B2Publication Date: 2024-01-02
- Inventor: Timothy Scott Konicek , Stuart T. Gerger , Stephen Michael Bortoli
- Applicant: Hamilton Sundstrand Corporation
- Applicant Address: US NC Charlotte
- Assignee: HAMILTON SUNDSTRAND CORPORATION
- Current Assignee: HAMILTON SUNDSTRAND CORPORATION
- Current Assignee Address: US NC Charlotte
- Agency: CANTOR COLBURN LLP
- Main IPC: B64D41/00
- IPC: B64D41/00 ; F01D15/10 ; F02C7/32 ; F15B15/14 ; F15B15/20

Abstract:
A ram air turbine (RAT) restow system includes an actuator assembly with a piston interposed between an upper fluid compartment and a lower fluid compartment. The actuator assembly is configured to selectively move the piston between a deployed position and a stowed position. A hydraulic restow circuit is interposed between the actuator assembly and a hydraulic fluid system that is configured to output fluid. The hydraulic restow circuit includes a restow valve configured to operate in a first position that establishes a first fluid path to deliver the fluid to the upper fluid compartment and a second position that establishes a second fluid path to deliver the fluid to the lower fluid compartment.
Public/Granted literature
- US20210253266A1 MANUALLY ACTUATED HYDRAULIC CIRCUIT FOR RAM AIR TURBINE (RAT) RESTOW Public/Granted day:2021-08-19
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