LIQUID FUEL ROCKET MOTOR Russian patent published in 2015 - IPC F02K9/97 

FIELD: motors and pumps.

SUBSTANCE: invention can be used for the design of the liquid fuel rocket motor (LFRM) with turbopump fuel system designed without afterburning, with radiation-cooled camera nozzle attachment. LFRM includes turbopump unit (TPU) 1, gas-producer 2, exhaust line of TPU turbine 3, combustion chamber 4 with radiation-cooled nozzle attachment 5 and manifold 6 on the nozzle of the combustion chamber 4, connected with the exhaust line 3. Around the radiation-cooled attachment 5 the housing 7 is provisioned, the manifold 6 is located in the zone of joint of the radiation-cooled attachment 7 and regenerative-cooled parts of the nozzle of the camera 4 and is connected with the input of the annular cavity formed by the housing 7 and wall of the radiation-cooled attachment 7, the output of which is connected to ring-type supersonic nozzle 8, surrounding the radiation-cooled attachment 7. Meanwhile, for the material of the housing 7 dense heat-resistant fabric can be used.

EFFECT: improvement of reliability of the motor and increase of specific impulse.

2 cl, 1 dwg