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US 2018/0363626 A1Published application
Ram air turbine governor spring positioning
AssigneeHamilton Sundstrand Corporation
InventorAndrew N. Baines
Life of this patent
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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.
Claims20
A ram air turbine comprising:
- turbine blades connected to rotate a transmission shaft, said transmission shaft connected for driving a first gear which is engaged to drive a second gear, said second gear connected to rotate an output shaft extending through a strut away from said transmission shaft;
- and
- a governor arrangement to change a pitch angle of said blades in response to speed, and including counterweights acting on a governor spring in said governor arrangement, said governor spring positioned on an opposed side of said strut relative to said turbine.
Dependencies are inferred from the claim text.