Turbine with smart pitch system and blade pitch lock assembly
AssigneeLockheed Martin Corporation
InventorsDaniel A. Broderick, Stephen Firkser, Anthony Pellegrino
Life of this patent
Estimating the term…
Abstract
A system comprising a blade pitch system having a set of locking holes. A pitch drive assembly is coupled to the blade pitch system and configured to rotate clockwise or counterclockwise within a range of angular degrees to adjust a blade pitch angle. The system includes a pitch lock pin-and-hole system including an interface plate and at least one blade pitch lock assembly coupled to the interface plate. Each lock assembly includes a locking pin having a pin center axis parallel with a center axis of a locking hole to engage a respective one locking hole of the set to lock the blade pitch angle.
Claims19
A system comprising:
- a blade pitch system having a set of locking holes;
- a pitch drive assembly coupled to the blade pitch system and configured to rotate clockwise and, alternately, counterclockwise within a range of angular degrees to adjust a blade pitch angle;
- and
- a pitch lock pin-and-hole system including an interface plate and at least one blade pitch lock assembly coupled to the interface plate, each blade pitch lock assembly including a locking pin having a pin center axis parallel with a center axis of a locking hole to engage a respective one locking hole of the set of locking holes in a locked state to lock the blade pitch angle.
A system comprising:
- a turbine including an energy generator, a nacelle, a rotor coupled to the nacelle, and a plurality of blades;
- and
- a plurality of smart pitch systems coupled to the plurality of blades, each smart pitch system comprising:
- a blade pitch system having a set of locking holes;
- a pitch drive assembly coupled to the blade pitch system and configured to rotate clockwise and, alternately, counterclockwise within a range of angular degrees to adjust a blade pitch angle of a respective one blade in a plane perpendicular to a rotor center axis of rotation;
- and
- a pitch locking pin-and-hole system including an interface plate and at least one blade pitch lock assembly coupled to the interface plate, each blade pitch lock assembly including a locking pin having a pin center axis parallel with a center axis of a locking hole to engage a respective one locking hole of the set of locking holes in a locked state to lock the blade pitch angle.
A method comprising:
- driving a blade pitch system having a set of locking holes;
- rotating, by a pitch drive assembly, the blade pitch system clockwise or counterclockwise within a range of angular degrees to adjust a blade pitch angle of a respective one blade in a plane perpendicular to a rotor center axis of rotation relative to a rotor housing;
- and
- locking, by a pitch locking pin-and-hole system including an interface plate and at least one blade pitch lock assembly coupled to the interface plate, each blade pitch lock assembly including a locking pin having a pin center axis parallel with a center axis of a locking hole to engage a respective one locking hole of the set of locking holes in a locked state.
Dependencies are inferred from the claim text.