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 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. Shaped central body consists of several parts; at that, at least one part of shaped central body is provided with possibility of radial axisymmetrical rotation about longitudinal axis of shaped central body and is kinematically connected to power supply units; on its external surface there installed are blades for putting it into rotary movement, and between movable and fixed parts of shaped central body there is shaped annular slot the cavity of which is connected to outlet cavity of turbine of turbine-pump unit.

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

1 dwg