Passive Cooling System for Control Valve Actuators
AssigneeGeneral Electric Company
InventorsDean Matthew Erickson, Martin Lopez, Jose Francisco Aguilar
Life of this patent
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Abstract
The present application provides a passive control valve actuator cooling system to provide a flow of cooling air to a control valve actuator used with a gas turbine engine. The passive control valve actuator cooling system may include a turbine enclosure with a negative pressure therein, a radiation shield with a number of radiation shield outlets and the control valve actuator positioned therein, and a cooling air line extending from outside of the turbine enclosure to the radiation shield such that the negative pressure within the turbine enclosure pulls the flow of cooling air into and through the radiation shield so as to cool the control valve actuator.
Claims20
A passive control valve actuator cooling system to provide a flow of cooling air to a control valve actuator used with a gas turbine engine, comprising:
- a turbine enclosure;
- the turbine enclosure comprising a negative pressure therein;
- a radiation shield with the control valve actuator positioned therein;
- the radiation shield comprising a plurality of radiation shield outlets;
- and
- a cooling air line extending from outside of the turbine enclosure to the radiation shield such that the negative pressure within the turbine enclosure pulls the flow of cooling air into and through the radiation shield so as to cool the control valve actuator.
A method of cooling a control valve actuator used with a control valve in a gas turbine engine, comprising:
- positioning the control valve actuator within a radiation shield;
- positioning the control valve actuator and the radiation shield within a turbine enclosure;
- providing a cooling air line from outside of the turbine enclosure to the radiation shield;
- creating a negative pressure in the turbine enclosure;
- and
- drawing a flow of ambient cooling air through the cooling air line and through the radiation shield so as to cool the control valve actuator.
A gas turbine engine, comprising:
- a compressor;
- a turbine;
- and
- an air extraction system extending from the compressor to the turbine;
- the air extraction system comprising a control valve actuator positioned about the turbine;
- and
- a passive control valve actuator cooling system for providing a flow of cooling air to the control valve actuator.
Dependencies are inferred from the claim text.