Cooling air flow control device for a gas turbine engine
AssigneeROLLS-ROYCE plc
InventorsIan C D Care, Roger Ashmead
Life of this patent
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Abstract
A cooling air flow control device for a gas turbine engine, the cooling air flow control device comprising a component, a cooling passage defined within the component and a shaped memory metal valve, the shaped memory metal valve disposed in the cooling passage to regulate, in use, the flow rate of a cooling air flow supplied, in operation, through the cooling passage wherein the shaped memory metal valve operates by changing shape to control the flow rate of the cooling air flow in response to the temperature of the component.
Claims14
A cooling air flow control device for a gas turbine engine, the cooling airflow control device comprising a component, a cooling passage defined within the component and a shaped memory metal valve, the shaped memory metal valve disposed in a cooling passage to regulate, in use, the flow rate of a cooling airflow supplied, in operation, through the cooling passage wherein the shaped memory metal valve operates by changing shape to control the flow rate of the cooling airflow in response to the temperature of the component, the shaped memory metal valve comprising a shaped memory metal valve which is of more sure-like shape.
A cooling air flow control device for a gas turbine engine, the cooling airflow control device comprising a component, a cooling passage defined within the component and a shaped memory metal valve, the shaped memory metal valve disposed in a cooling passage to regulate, in use, the flow rate of a cooling airflow supplied, in operation, through the cooling passage wherein the shaped memory metal valve operates by changing shape to control the flow rate of the cooling airflow in response to the temperature of the component the cooling airflow control device comprising the shaped memory metal valve arranged to operate by transforming shape substantially in a principal plane of the shaped memory metal valve when subjected to a predetermined temperature change.
Dependencies are inferred from the claim text.