METHOD FOR ADAPTIVE ADJUSTMENT OF CONTROLLED PARAMETERS OF THE EMERGENCY PROTECTION SYSTEM OF A LIQUID-PROPELLANT ROCKET ENGINE FOR THE FIRST FIRING TEST Russian patent published in 2023 - IPC F02K9/38 F02K9/96 B64G1/52 F02K9/00 

FIELD: instrumentation.

SUBSTANCE: present invention can be used in rocket technology as an emergency protection system (EPS) for liquid rocket engines (LRE). Adaptive tuning of the controlled parameters of the LRE EPS is carried out during the first fire test of the engine based on the results of five engine units: a gas generator, a turbine, a combustion chamber, an oxidizer pump and a fuel pump. The mathematical model of the engine is corrected by introducing the most significant values of parameters into it. The expected dependence of the calculated values of the controlled parameters of the EPS on the given engine thrust is determined. For each given mode of engine operation, the expected values of the EPS controlled parameters are determined, and these values are used to determine the adaptive upper and lower threshold values for setting the LRE EPS for the first fire test of the engine.

EFFECT: invention makes it possible to determine at an early stage the beginning of the development of an emergency situation on the engine.

3 cl, 3 dwg, 3 tbl