LIQUID-PROPELLANT ENGINE Russian patent published in 2013 - IPC F02K9/42 

FIELD: engines and pumps.

SUBSTANCE: liquid-propellant engine includes an annular chamber with a mixing head including component supply units, coaxial jet injectors installed in the units along concentric circles and containing a hollow tip attaching the cavity of one fuel component to the cavity of the combustion chamber, a sleeve enveloping the tip with a gap and attaching the cavity of the other fuel component to the cavity of combustion chamber; at that, in the outlet part of the tip there are pylons interacting with inner surface of the sleeve and aligning the tip relative to the sleeve, a plate-type nozzle of external expansion, a shaped central body and an annular critical section, control units and power supply units including a turbopump unit with the turbine, which are located in the cavity of the shaped central body. The shaped central body consists of several parts; 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 giving rotational movement to it. In pylons there made are channels one end of which opens to the tip cavity and the other one to combustion chamber cavity.

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

2 cl, 5 dwg