Distributed architecture for a gas-turbine starter/generator
First Claim
1. An assembly comprising a gearbox for a gas turbine having a geartrain with a plurality of gearwheels housed in a casing, and at least one starter/generator comprising a generator with a rotor forming a primary magnetic circuit and a stator forming a secondary magnetic circuit, and an exciter with a stator forming a primary magnetic circuit and a rotor forming a secondary magnetic circuit, the starter/generator comprising:
- a first module or generator module comprising a first casing connected to the casing of the gearbox, the generator housed in the first casing and a first shaft constrained to rotate with the rotor of the generator projecting from the first casing and carrying a first mechanical coupling member;
a second module or exciter module, comprising a second casing connected to the casing of the gearbox, the exciter housed in the second casing, and a second shaft constrained to rotate with the rotor of the exciter, the second shaft being distinct from the first shaft, projecting from the second casing, and carrying a second mechanical coupling member; and
an electrical connection comprising a rectifier and at least one connector for connecting the secondary circuit of the exciter to the primary circuit of the generator,wherein the first and second shafts share a common axis and are coupled to a common gearwheel of the gearbox, and the casings of the first and second modules are separately connected to the casing of the gearbox on opposite sides thereof.
3 Assignments
0 Petitions
Accused Products
Abstract
An assembly includes a gearbox for a gas turbine having a geartrain, and at least one starter/generator coupled mechanically to the gearbox. The starter/generator includes a generator module with a first casing, a generator housed in the first casing, and a first shaft constrained to rotate with the rotor of the generator, projecting from the first casing, and carrying a first mechanical coupling member; an exciter module, including a second casing, an exciter housed in the second casing, and a second shaft distinct from the first shaft, constrained to rotate with the rotor of the exciter, projecting from the second casing, and carrying a second mechanical coupling member; and an electrical connection including a rectifier and at least one connector for connecting the secondary circuit of the exciter to the primary circuit of the generator.
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Citations
12 Claims
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1. An assembly comprising a gearbox for a gas turbine having a geartrain with a plurality of gearwheels housed in a casing, and at least one starter/generator comprising a generator with a rotor forming a primary magnetic circuit and a stator forming a secondary magnetic circuit, and an exciter with a stator forming a primary magnetic circuit and a rotor forming a secondary magnetic circuit, the starter/generator comprising:
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a first module or generator module comprising a first casing connected to the casing of the gearbox, the generator housed in the first casing and a first shaft constrained to rotate with the rotor of the generator projecting from the first casing and carrying a first mechanical coupling member; a second module or exciter module, comprising a second casing connected to the casing of the gearbox, the exciter housed in the second casing, and a second shaft constrained to rotate with the rotor of the exciter, the second shaft being distinct from the first shaft, projecting from the second casing, and carrying a second mechanical coupling member; and an electrical connection comprising a rectifier and at least one connector for connecting the secondary circuit of the exciter to the primary circuit of the generator, wherein the first and second shafts share a common axis and are coupled to a common gearwheel of the gearbox, and the casings of the first and second modules are separately connected to the casing of the gearbox on opposite sides thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An assembly comprising a gearbox for a gas turbine having a geartrain with a plurality of gearwheels housed in a casing, and at least one starter/generator comprising a generator with a rotor forming a primary magnetic circuit and a stator forming a secondary magnetic circuit, and an exciter with a stator forming a primary magnetic circuit and a rotor forming a secondary magnetic circuit, the starter/generator comprising:
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a first module or generator module comprising a first casing connected to the casing of the gearbox, the generator housed in the first casing and a first shaft constrained to rotate with the rotor of the generator projecting from the first casing and carrying a first mechanical coupling member; a second module or exciter module, comprising a second casing connected to the casing of the gearbox, the exciter housed in the second casing, and a second shaft constrained to rotate with the rotor of the exciter, the second shaft being distinct from the first shaft, projecting from the second casing, and carrying a second mechanical coupling member; and an electrical connection comprising a rectifier and at least one connector for connecting the secondary circuit of the exciter to the primary circuit of the generator, wherein the first and second shafts have not a common axis, and wherein the electrical connection comprises a first rotary electrical coupling having stationary contacts and rotary contacts connected to the secondary circuit of the exciter, a second rotary electrical coupling having stationary contacts and rotary contacts connected to the primary circuit of the generator, and a stationary connection connecting the stationary contacts of the first rotary coupling to the respective stationary contacts of the second rotary coupling. - View Dependent Claims (10, 11, 12)
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Specification