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US 11,186,383 B2Granted
Centrifugal fuel pump ice prevention
AssigneeHamilton Sundstrand Corporation
InventorJames S. Elder
Life of this patent
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Abstract
A fuel pump arrangement including a housing and an impeller located within the housing configured for receiving cold fuel through an inlet of the housing, wherein the impeller includes a series of vanes for drawing fluid and a nose cone defining an axis, wherein the nose cone includes a channel therethrough for passing warm fuel to an exterior surface of the nose cone for mixing with the cold fuel.
Claims12
A fuel pump arrangement comprising:
- a housing defining an inlet;
- and
- an impeller located within the housing configured to draw fuel through the inlet, wherein the impeller includes a series of vanes for drawing fluid and a nose cone defining an axis;
- and
- a nose cone disposed at the impeller having a channel configured to port warm fuel therethrough to a portion the nose cone within the inlet;
- a fuel line for transporting fuel from the impeller downstream to a heat exchanger;
- and
- a return fuel line for transporting fuel downstream of the heat exchanger to the channel for mixing with the cold fuel, wherein the pressure of the return fuel line is greater than pressure of the inlet fuel line.
5 more elements
Dependencies are inferred from the claim text.