FORCE MODIFICATION OF PASSIVE SPOOL FOR CONTROL OF SECONDARY NOZZLE CIRCUITS
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United States of America Patent
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Feb 27, 2024
Grant Date -
Feb 29, 2024
app pub date -
Aug 26, 2022
filing date -
Aug 26, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
A system includes an injector having a scheduling valve assembly and a nozzle in fluid communication with the valve assembly. The scheduling valve assembly is configured for regulation of flow from an inlet of the injector to the nozzle. The injector includes two fluid circuits between the inlet of the injector and two respective outlets of the nozzle for staged flow output from the nozzle. A first one of the two fluid circuits is a primary circuit, and a second one of the two fluid circuits is a secondary circuit. A solenoid valve is connected in fluid communication with the scheduling valve assembly, wherein the solenoid valve is configured to adjust position of a hydromechanical valve spool of the valve assembly.
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