GAS TURBINE ENGINE
1 Assignment
0 Petitions
Accused Products
Abstract
A gas turbine engine is provided having a variety of forms and features. The gas turbine engine can include a compressor having movable vanes. In one form of operation the compressor can close down the vanes to a relatively low flow capacity position and the compressor can be operated at a higher speed, whereupon the vanes can be repositioned and the gas turbine engine operated at a different condition. The gas turbine engine can include a turbine having movable vanes. In one form of operation the turbine can change the vane positions to a relatively low torque position and the engine operated at a higher fuel flow condition, whereupon the vanes can be repositioned and the gas turbine engine operated at a different condition. The gas turbine engine can have a heater that adds heat to a flow stream, a motor that provides energy to a shaft, and an external load.
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Citations
76 Claims
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1. -47. (canceled)
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48. An apparatus comprising:
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a gas turbine engine having a turbine operable to extract energy from a passing flow stream; and an energy transferring device coupled with the turbine and operable to receive the extracted energy, the energy transferring device operable to selectively return at least a portion of the extracted energy to a gas path component of the gas turbine engine or provide the extracted energy to an external energy system. - View Dependent Claims (49, 50, 51, 52, 53, 54, 55)
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56. A method comprising:
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flowing a flow stream through a turbine of a multi-spool gas turbine engine to produce power from the rotation of the turbine; apportioning the power produced from the turbine among operating an external energy consuming system and operating a device within the gas turbine engine; and wherein the operating the device is one of assistingly rotating a spool shaft and heating a flow stream. - View Dependent Claims (57, 58, 59, 60, 61, 62, 63, 64, 65)
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66. A method comprising:
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generating power derived from a rotating turbine of a gas turbine engine; and allocating power derived from the turbine between an external primary load and an internal gas path component. - View Dependent Claims (67, 68, 69, 70, 71, 72, 73, 74, 75, 76)
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Specification