To the method of calculation of the main characteristics of promising booster electric pump units of liquid processor engines

The increase in the capacity of electric power sources, the use of electric motors in the systems for supplying rocket fuel components from foreign companies, the limitations on the power of classical fuel supply systems - all these conditions set a trend for studying the possibility of introducing electric drives for rocket engine power systems. The study is devoted to the analysis of the possibility of using electric motors as a drive for the main and auxiliary pumps of liquid rocket engines. Promising developments in the field of rechargeable batteries give grounds for a mathematical justification for the use of this technical solution in order to modernize power systems, both existing rocket engines and samples under development. The article presents a selection of patents for modern technologies for creating high-capacity batteries, an analysis of the use of technology for the use of electric motors in the international market for delivering payloads to orbits, and a rationale for the prospects of this direction in the development of rocket engines. The statistics of the causes of failures of upper stages and their correlation with units, which can be replaced by more reliable systems using electric motors, have been studied. The advantages and disadvantages of power supply systems with the use of electric drives are determined. This study allows us to conclude that the use of electric motors in rocket engine power systems is a promising solution that improves the efficiency of the propulsion system, performance and reliability.