FIELD: rocketry.
SUBSTANCE: invention relates to systems providing for supply of working fluid (fuel) to hydraulic units of automatic equipment of liquid-propellant engines (for example, steering machines controlling thrust vector of liquid-propellant engines). Outlet and inlet of the fuel pump of the turbopump assembly are hydraulically connected to the positive displacement motor. Hydraulic motor is kinematically connected to positive displacement pump feeding working fluid to hydraulic units. Pressure regulator containing a throttling device is installed in the hydraulic line connecting the outlet cavity of the fuel pump of the turbopump assembly with the inlet cavity of the hydraulic motor.
EFFECT: improvement of weight and size characteristics, simplification, increase of reliability and energy efficiency, as well as possibility of pressure control without energy losses for liquid bypass.
1 cl, 1 dwg
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