Nacelle inlet lip anti-icing with engine oil
First Claim
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1. A nacelle for housing a gas turbine engine having a pressurized oil system for lubricating components thereof, said nacelle comprising:
- an inlet lip defining a leading edge of said nacelle, said inlet lip having a conduit therein in fluid flow communication with said pressurized oil system of said gas turbine engine, said conduit defining an oil passage within which circulates pressurized engine oil therethrough, said conduit being in heat transfer communication with an outer surface of said inlet lip; and
a control system to regulate flow of said pressurized engine oil, the control system including at least one sensor for sensing foreign object damage to the oil system and at least one counter-measure apparatus operative to prevent oil leakage from the oil system in the event that said foreign object damage is detected by the said sensor.
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Abstract
A nacelle for housing a gas turbine engine having a pressurized oil system for lubricating components thereof comprises an inlet lip defining a leading edge of the nacelle, the inlet lip having a conduit therein in fluid flow communication with the pressurized oil system of the gas turbine engine and defining an oil passage for circulation of pressurized engine oil therethrough. The conduit is in heat transfer communication with an outer surface of the inlet lip.
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Citations
27 Claims
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1. A nacelle for housing a gas turbine engine having a pressurized oil system for lubricating components thereof, said nacelle comprising:
- an inlet lip defining a leading edge of said nacelle, said inlet lip having a conduit therein in fluid flow communication with said pressurized oil system of said gas turbine engine, said conduit defining an oil passage within which circulates pressurized engine oil therethrough, said conduit being in heat transfer communication with an outer surface of said inlet lip; and
a control system to regulate flow of said pressurized engine oil, the control system including at least one sensor for sensing foreign object damage to the oil system and at least one counter-measure apparatus operative to prevent oil leakage from the oil system in the event that said foreign object damage is detected by the said sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- an inlet lip defining a leading edge of said nacelle, said inlet lip having a conduit therein in fluid flow communication with said pressurized oil system of said gas turbine engine, said conduit defining an oil passage within which circulates pressurized engine oil therethrough, said conduit being in heat transfer communication with an outer surface of said inlet lip; and
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14. A power plant assembly comprising:
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a gas turbine engine having a pressurized oil system for lubricating components thereof; a nacelle housing said gas turbine engine having an inlet lip defining a leading edge of said nacelle; a conduit, defined within said inlet lip, communicating with said pressurized oil system for circulation of engine oil therethrough, said conduit being in heat transfer communication with an outer surface of said inlet lip; and a control system to regulate flow of said engine oil, the control system including at least one sensor for sensing foreign object damage to the oil system and at least one counter-measure apparatus operative by the control system in the event that such foreign object damage is sensed. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method of preventing ice build up on a nacelle inlet lip and cooling engine oil, comprising the steps of:
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providing a nacelle housing a gas turbine engine and having a conduit within an inlet lip thereof defining a circumferential oil passage therein, enabling beat transfer communication between said conduit and an outer surface of said inlet lip; circulating pressurized engine oil used to lubricate said gas turbine engine through said conduit, thereby cooling said engine oil and heating said outer surface of said inlet lip; and detecting foreign object damage to the conduit using a sensor of a control system, and restricting a flow of said pressurized engine oil within said conduit using a counter-measure apparatus of the control system in the event that such foreign object damage is detected by the sensor.
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Specification