LIQUID-PROPELLANT ENGINE Russian patent published in 2010 - IPC F02K9/64 

FIELD: engines and pumps.

SUBSTANCE: invention can be used during development of alternator-free liquid propellant engines operating on cryogenic components, e.g. oxygen and hydrogen. Liquid propellant engine includes regeneratively cooled annular chamber with mixing head and plate nozzle of external expansion, shaped central body and annular critical section. Control units and power supply units, which include turbine-pump unit with turbine, are located in cavity of shaped central body. Inlet cavity of turbine of turbine-pump unit is connected to cavity of cooling circuit, and longitudinal ribs are made on external surface of shaped central body.

EFFECT: increasing specific burst of power and pressure in chamber at minimum overall dimensions, simplifying pneumatic-hydraulic circuit.

1 dwg