Aeroderivative jet engine accessory starter relocation to main shaft—directly connected to HPC shaft
AssigneeGeneral Electric Company
InventorsPawel Szczepanowski, Mateusz Goldyn
Life of this patent
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Abstract
In one aspect, the present disclosure is directed to a gas turbine starting system that includes a shaft coupling a compressor and a turbine. An annular housing extends circumferentially around the shaft such that the annular housing defines a compartment. A flange extends radially outward from the annular housing for mounting the annular housing to a stationary wall. A starter is positioned in the compartment. A collar rotatably couples to the annular housing and selectively couples to the starter. The collar includes a radially inner surface having a plurality of splines for engaging the shaft. The starter, when activated, rotates the collar, which rotates the shaft to start the gas turbine.
Claims16
A gas turbine starting system, comprising:
- a shaft coupling a high pressure compressor and a turbine;
- an annular housing extending circumferentially around the shaft, wherein the annular housing defines a compartment, and wherein the annular housing is located axially between the high pressure compressor and a low pressure compressor
- a flange extending radially outward from the annular housing for mounting the annular housing to a stationary wall;
- a hydraulic or pneumatic motor positioned in the compartment;
- and
- a collar rotatably coupled to the annular housing and selectively coupled to the hydraulic or pneumatic motor such that the hydraulic or pneumatic motor is positioned axially between the collar and the flange;
- the collar comprising a radially inner surface comprising a plurality of splines for engaging the shaft;
- wherein the hydraulic or pneumatic motor, when activated, rotates the collar, which rotates the shaft to start the gas turbine.
A gas turbine, comprising:
- a compressor section having a high pressure compressor and a low pressure compressor;
- a combustor;
- a turbine section;
- a shaft coupling the high pressure compressor and the turbine section;
- an annular housing extending circumferentially around the shaft, wherein the annular housing defines a compartment, and wherein the annular housing is located axially between the high pressure compressor and the low pressure compressor;
- a flange extending radially outward from the annular housing for mounting the annular housing to a stationary wall;
- a hydraulic or pneumatic motor positioned in the compartment;
- and
- a collar rotatably coupled to the annular housing and selectively coupled to the hydraulic or pneumatic motor such that the hydraulic or pneumatic motor is positioned axially between the collar and the flange;
- the collar comprising a radially inner surface comprising a plurality of splines for engaging the shaft;
- wherein the hydraulic or pneumatic motor, when activated, rotates the collar, which rotates the shaft to start the gas turbine.
Dependencies are inferred from the claim text.