OPERATION OF OXYGEN-KEROSENE LIQUID ROCKET ENGINE AND ROCKET ENGINE PLANT Russian patent published in 2015 - IPC F02K9/42 

FIELD: engines and pumps.

SUBSTANCE: this process proceeds from addition of polymer anti-turbulence additive (ATA) as agent reducing hydrodynamic loss in kerosene fuel line. It comprises feed of oxidiser and fuel to engine combustion chamber to get combustion products and their expansion in jet nozzle to create engine thrust. Note here that polymer ATA is added from extra tanks and mixed with pure kerosene flow fed to engine inlet fuel line at engine starting and operation in the mixer arranged in said line. Said polymer ATA represents the solution of polyisobutylene in concentration of 0.6-0.8% of pure kerosene bulk or the solution of high alpha-olefins in kerosene with concentration of 0.6-0.8% of pure kerosene bulk. Rocket engine plant comprises liquid-propellant rocket engine with turbopump fuel component feed system, oxidiser ( liquid oxygen) tank and fuel (pure kerosene) tank and fuel lines to connect said tanks with engine. Besides, it comprises extra tank filled with the solution of aforesaid polymers and displacement system for feed of said polymer in fuel inlet line for its mixing with pure kerosene during engine operation. Said extra tank has diaphragm to divide its in two chambers so that fluid chamber is communicated with the engine inlet line. Second, gas chamber is communicated with high-pressure cylinder via the valve and pressure control valve.

EFFECT: higher payload to be placed in orbit.

5 cl, 3 dwg