Tail cone generator with integral speed increasing gearbox
First Claim
1. A gas turbine engine, comprising:
- a tailcone;
a low-pressure spool at least partially outside the tailcone;
an input shaft coupled to the low-pressure spool and at least partially inside the tailcone;
a differential coupled to the input shaft and disposed inside the tailcone;
wherein the differential is aft of the input shaft;
a generator coupled to the differential and disposed inside the tailcone;
an oil pump disposed radially outward from the differential and configured to pump oil through the generator along an axis of rotation to the differential with the oil pump, the differential, and the generator disposed completely inside the tailcone; and
a heat exchanger in operable connection with the oil pump and disposed in an airstream external to the tailcone.
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Accused Products
Abstract
A gas turbine engine is provided, comprising a tail cone and a low-pressure spool outside the tail cone. An input shaft may be coupled to the low-pressure spool and inside the tail cone. A differential may be coupled to the input shaft and inside the tail cone. A generator may be coupled to the differential and also disposed inside the tail cone. An oil pump may be configured to pump oil through the generator to the differential. A generator assembly is also provided. The generator assembly may comprise an input shaft, a differential coupled to the input shaft, a rotating transfer tube coupled to the differential, a generator coupled to rotating transfer tube, and an oil pump configured to pump oil from the generator, through the rotating transfer tube, and into the differential.
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Citations
14 Claims
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1. A gas turbine engine, comprising:
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a tailcone; a low-pressure spool at least partially outside the tailcone; an input shaft coupled to the low-pressure spool and at least partially inside the tailcone; a differential coupled to the input shaft and disposed inside the tailcone;
wherein the differential is aft of the input shaft;a generator coupled to the differential and disposed inside the tailcone; an oil pump disposed radially outward from the differential and configured to pump oil through the generator along an axis of rotation to the differential with the oil pump, the differential, and the generator disposed completely inside the tailcone; and a heat exchanger in operable connection with the oil pump and disposed in an airstream external to the tailcone. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A generator assembly, comprising:
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an input shaft; a differential coupled to the input shaft and disposed inside a tailcone; a rotating transfer tube coupled to the differential and disposed inside the tailcone; a generator coupled to rotating transfer tube and disposed inside the tailcone; an oil pump configured to pump oil from the generator, through the rotating transfer tube, and into the differential with the oil pump disposed inside the tailcone and radially outward from at least one of the differential or the rotating transfer tube; and a heat exchange in operable connection with the oil pump and disposed in an airstream external to the tailcone. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification