Power plants – Combustion products used as motive fluid – Multiple fluid-operated motors
Reexamination Certificate
2011-02-15
2011-02-15
Swiatek, Rob (Department: 3643)
Power plants
Combustion products used as motive fluid
Multiple fluid-operated motors
C060S746000, C060S752000
Reexamination Certificate
active
07886516
ABSTRACT:
An engine that operates and produces the entire required vehicle thrust below Mach 4 is useful for a Hypersonic combined cycle vehicle by saving vehicle and engine development costs. One such engine is a combined cycle engine having both a booster and a dual mode ramjet (DMRJ). The booster and the DMRJ are integrated to provide effective thrust from Mach 0 to in excess of Mach 4. As the booster accelerates the vehicle from Mach 0 to in excess of Mach 4, from Mach 0 to about Mach 2 incoming air delivered to the DMRJ is accelerated by primary ejector thrusters that may receive oxidizer from either on-board oxidizer tanks or from turbine compressor discharge air. As the TBCC further accelerates the vehicle from about Mach 0 to in excess of Mach 4 exhaust from the turbine and exhaust from the DMRJ are combined in a common nozzle disposed downstream of a combustor portion of said DMRJ functioning as an aerodynamic choke.
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Aerojet-General Corporation
Rosenblatt Gregory S.
Swiatek Rob
Wiggin and Dana LLP
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