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US 8,985,517 B2Granted
Passive cooling of transmission using mast mounted heat pipes
AssigneeTextron Innovations Inc.
InventorsRyan T. Ehinger, Monte A. McGlaun
Life of this patent
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Abstract
A passive cooling system for an aircraft includes a rotor assembly and a closed heat pipe. The closed heat pipe is carried by the rotor assembly and configured to extract heat energy from a heat source positioned away from the rotor assembly and configured to dissipate the heat energy through the rotor assembly.
Claims20
A passive cooling system for an aircraft, comprising:
- a rotor assembly;
- a mast associated having an inner cavity;
- and
- a heat pipe carried by the rotor assembly, the heat pipe being configured to passively extract heat energy from a heat source positioned away from the rotor assembly and configured to passively dissipate heat energy via the rotor assembly;
- and
- wherein a portion of the heat pipe extends through the inner cavity;
- and
- wherein heat energy from the heat pipe dissipates through the mast.
5 more elements
A passive cooling system for an aircraft transmission, comprising:
- a heat pipe partially disposed within the transmission and extending therefrom to ambient air;
- wherein the heat pipe is configured to passively extract heat energy generated by the transmission and dissipate heat energy to ambient air;
- and
- wherein the heat pipe is configured to partially extend through a mast of an aircraft;
- wherein heat energy from the heat pipe dissipates through the mast.
2 more elements
A method to passively extract heat energy from a heat source via an aircraft rotor assembly, comprising:
- extracting heat energy from the heat source with a heat pipe;
- and
- passively dissipating the heat energy extracted from the heat sources through the rotor assembly;
- extending the heat pipe partially through a mast of an aircraft;
- dissipating heat energy from the heat pipe through the mast.
2 more elements
Dependencies are inferred from the claim text.