CAMERA LPR Russian patent published in 2019 - IPC F02K9/62 

FIELD: engines and pumps.

SUBSTANCE: invention relates to liquid-propellant rocket engines operating in the first and second stages of the launch vehicle. LPR chamber containing a body consisting of a cylindrical part, subsonic and supersonic parts of the nozzle, a mixing head with underwater lines of the fuel components and a central body with channels of the cooling path located in the subsonic part of the chamber, according to the invention, the central body, installed by means of sealing elements in the central part of the mixing head with the location of the profiled end part in the region of the critical section, is connected to the piston of the critical section regulator, while the regulator is fixed on the body of the mixing head, and the supply line of the cooler is connected to the channels of the cooling path on the outer surface of the inner wall of the central body, which are connected by openings to its inner cavity and the outlet header of the cooler on the regulator.

EFFECT: invention provides increased efficiency by increasing the specific thrust of the engine throughout the flight path.

1 cl, 3 dwg