Patent ID: 8800594

Claim:
A fuel return valve, comprising: a flow-level select and shut-off valve including a first fuel inlet, a second fuel inlet, a return-to-tank fuel outlet, a control pressure inlet port, a first control pressure port, a second control pressure port, and a valve element movable between a shut-off position, a mid-flow position, and a max-flow position; and a servo control valve coupled to the flow-level select and shut-off valve and configured to control relative fluid pressures therein to selectively move the valve element to the shut-off position, the mid-flow position, and the max-flow position, wherein the flow-level select and shut-off valve is configured such that: when the valve element is in the shut-off position, fuel is prevented from flowing into and through the first and second fuel inlet ports and out the return-to-tank outlet port, when the valve element is in the mid-flow position, fuel may flow into and through the first and second fuel inlets and out the return-to-tank outlet port at a first flow rate, and when the valve element is in the max-flow position, fuel may flow into and through the first and second fuel inlets and out the return-to-tank outlet port at a second flow rate that is greater than the first flow rate.