Pitch control assembly
AssigneeGE Aviation Systems LLC
InventorChristopher Roy CARRINGTON
Life of this patent
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Abstract
A pitch control assembly for adjusting the pitch of a propeller blade, including a pitch control unit comprising a housing, with a plurality of control valves and corresponding hydraulic lines located within the housing, a blade angle unit, a transfer bearing mounted to the housing and having a plurality of hydraulic lines fluidly coupled to the hydraulic lines of the pitch control unit, a transfer tube axially receiving and axially moveable relative to at least a portion of the transfer bearing, a magnetic core sleeve carried by the transfer tube and located within the blade angle unit.
Claims12
A pitch control assembly for adjusting the pitch of a propeller blade, comprising:
- a pitch control unit comprising a housing, with a plurality of control valves and corresponding hydraulic lines located within the housing;
- a blade angle unit comprising a series of coils located within housing;
- a transfer bearing mounted to the housing and having at least a portion located within the series of coils and a plurality of hydraulic lines fluidly coupled to the hydraulic lines of the pitch control unit;
- a transfer tube axially receiving and axially moveable relative to at least a portion of the transfer bearing;
- and
- a magnetic core sleeve carried by the transfer tube and located within the blade angle unit;
- and
- wherein a pitch angle of a propeller may be controlled by axially moving the transfer tube relative to the transfer bearing in response to fluid supplied through the hydraulic lines in response to actuation of the control valves, and the blade angle unit senses a corresponding axial movement of the magnetic core sleeve within the series of coils and provides an output indicative of an amount of blade angle movement.
Dependencies are inferred from the claim text.