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US 11,286,887 B2Granted
Pneumatic circuit breaker based self resetting passive overspeed control valve for turbine pump assembly
AssigneeHamilton Sundstrand Corporation
InventorRichard A. Himmelmann
Life of this patent
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Abstract
A turbine pump assembly has a turbine, a centrifugal pump, a passive electrical speed control system, and a pneumatic circuit breaker. The pneumatic circuit breaker has a plurality of elements that are configured to move to a position blocking an outlet duct of the turbine when a flow velocity exceeds a predetermined threshold. A rocket thrust vector control system is also disclosed.
Claims20
A turbine pump assembly, comprising:
- a turbine configured to drive a centrifugal pump;
- a passive electrical speed control system configured to limit a speed of the turbine;
- and
- a pneumatically actuated circuit breaker arranged in an outlet duct of the turbine having a plurality of elements that are configured to move to a position blocking the outlet duct when a flow velocity exceeds a predetermined threshold, wherein the circuit breaker has at least one spring attached to at least one of the plurality of elements, and the spring holds the at least one element in a closed position when the flow velocity is below the predetermined threshold.
1 more element
A rocket thrust vector control system, comprising:
- an engine nozzle configured to receive fluid from a centrifugal pump;
- a turbine pump assembly having a turbine configured to drive the centrifugal pump, a passive electrical speed control system configured to limit a speed of the turbine;
- and
- a pneumatically actuated circuit breaker arranged in an outlet duct of the turbine, wherein the circuit breaker has a plurality of elements configured to move to a position blocking the outlet duct when a flow velocity exceeds a predetermined threshold, wherein the circuit breaker has at least one spring attached to at least one of the plurality of elements, and the spring holds the at least one element in a closed position when the flow velocity is below the predetermined threshold.
1 more element
Dependencies are inferred from the claim text.