FIELD: designing of jet engine plants for space vehicles. SUBSTANCE: system includes on-board compressor 1, check valves 14 and 15. On-board compressor is connected with pressurization bottles and separating gas chambers of propellant tanks (oxidizer and fuel tanks) by means of pneumatic high- and low-pressure mains. Check valves are fitted in each high-pressure pneumatic main. System includes also bypass mains 16 and 17 fitted with non-adjustable throttle valve 18 and two fine filters 16 and 21 mounted at inlet and outlet of throttle valve. One end of each bypass main is brought in communication with low-pressure pneumatic main at inlet of pressure-reducing valve 12. Other end is brought in communication with high-pressure pneumatic main in section between compressor output and check valves. EFFECT: enhanced survivability and reliability and increased service life of pressurization system. 1 dwg
