Invention Grant
- Patent Title: Ram air turbine governor spring positioning
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Application No.: US15627744Application Date: 2017-06-20
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Publication No.: US10738761B2Publication Date: 2020-08-11
- Inventor: Andrew N. Baines
- 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: Carlson, Gaskey & Olds, P.C.
- Main IPC: B64D41/00
- IPC: B64D41/00 ; F03D9/32 ; F03D7/02 ; F02C7/32 ; F01D7/02 ; B64C11/34 ; F03D7/04

Abstract:
A ram air turbine has turbine blades connected to rotate a transmission shaft. The transmission shaft is connected to drive a first gear which is engaged to drive a second gear. The second gear is connected to rotate an output shaft extending through a strut away from the transmission shaft. A governor arrangement is configured to change a pitch angle of the blades in response to speed, and includes counterweights acting on a spring in the governor arrangement. The governor spring is positioned on an opposed side of the strut relative to the turbine.
Public/Granted literature
- US20180363626A1 RAM AIR TURBINE GOVERNOR SPRING POSITIONING Public/Granted day:2018-12-20
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