METHOD OF CHANGING OPERATING CONDITIONS OF LIQUID PROPELLANT ROCKET ENGINE AND ENGINE FOR IMPLEMENTATION OF THIS METHOD Russian patent published in 1999 - IPC

FIELD: liquid propellant rocket engines. SUBSTANCE: method of changing operating conditions of liquid propellant rocket engine with recovery system with afterburning of generator gas in chamber for oxidation system is based on program redistribution of fuel and oxidizer between chamber and gas generator. For this purpose delivery of oxidizer into chamber mixing head is reduced to preset minimum value and preset amount of fuel is delivered into chamber mixing head providing throttling according to oxidation mode. Then delivery of fuel into chamber mixing head to preset value and delivery of fuel and oxidizer into mixing head of gas generator are increased to preset value and engine is brought into operation under rated conditions according to oxidation system. Liquid propellant rocket engine has chamber 1 with cooling duct whose mixing chamber is made to "gas-liquid" circuit and is furnished with additional fuel consumption manifold 7, gas generator 2 whose mixing head 6 is furnished additionally with oxidizer high consumption manifold 8 and fuel low consumption manifold 9, turbopumping unit 3 with turbine 4, fuel pump and two-stage oxidizer pump mounted on one shaft, automatic and control sets and supply devices. EFFECT: enhanced safety in operation. 3 cl, 5 dwg