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 MAKS 2005 - International Aviation & Space Salon
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Bipropellant low thrust rocket engine РДМТ 200 К

Bipropellant low thrust rocket engine
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Photo Description
The thruster is designed to control attitude of re-usable transportation space vehicle (RTSV) by commands provided by the control system (CS). The thruster produces the rated thrust of 186.4 N value and it is capable for the repeated starts-up of duration from 0.06 sec to 100 sec.
In the thruster there are the solenoid-operated valves (SOV) developed and fabricated by R&DIME: the PT.200.00-01 type is in the fuel circuit and the 6PT.200.00-03 type is in the oxidizer circuit. The SOV PT.200.00-01 is a single-seat, single-stage value with the oxidizer circuit. The SOV PT.200.00-01 is a single-seat, single-stage valve with the teflon sealing and is designed for supply and shut-off of fuel for injector. It has a 0.18kg mass, a response time of not over 0.03 sec, a current consumption of not over 0.74 A at the voltage 34V and temperature 20”C. The SOV 6PT.200.00-03 is a two-stage valve with the teflon sealings and is designed for supply and shut-off of oxidizer for injector. It has a 0.16kg mass, a response time of not over 0.025 sec, a current consumption of not over 0.165 A at the voltage 34V and temperature 20C. The ignition of propellant components mixture in the combustion chamber is carried out by the igniting unit, consuming not over 1 A within 0.120 sec.
The thruster has a stabilizer, providing a constant flow rate of oxidizer in case of possible changes of pressure at the inlet.
The thruster's start-up is carried out by supply voltage delivery to the solenoid-operated valves of oxidizer and fuel and also to the igniting unit with the help of commands from CS. The valves are opened, the propellant components enter the injector, then come to the combustion chamber, where their ignition and combustion occur. After the ignition of propellants mixture the supply voltage is removed from the igniting unit and the mentioned, unit is out of operating process. The combustion products, outlawing from the nozzle, produce the thrust of thruster. The thruster is cut-off by removing the voltage from the valve constants and in this case the access of components to the combustion chamber stops.
The thermal condition of thruster during its run in all the modes is provided by the internal film and external regenerative cooling of combustion chamber, the radiation cooling of nozzle, the contact heat transfer via the flange of thruster attachment to RTSV and/or by pumping the warming-up fluid through a head-exchanging circuit of injector: The thermoinsulation of nozzle keeps the preset thermal mode of the thruster's structure and reduced the transfer of heat radiation fluxes from the thruster to the RTSV elements located in proximity to the thruster.
The thruster can operate in a single-propellant mode on gaseous oxygen at the average rated thrust of LSN value and the average thrust specific impulse of 700 m/sec value. The thruster to be supplied for customer doesn't require adjustment and regulation.
R&DIME possesses the stand, experimental, production bases, the scientific, engineering and designing potential, allowing to carry out scientific and research works and experimental-designing works on production of small-class engine in all the directions in interests of domestic and foreign companies. R&DIME conclude contracts on series-produced Low Thrust Rocket Engines and electrically actuated valves production and supply.
R&DIME offers to perform tests of large scale systems and technologies and also up to 3,OOOkN sustainer liquid rocket engines themselves and units of their supply systems with the LO,+LH2 (L methane) propellants.
   About company
   Main activity
Cool gas low thrust rocket engine
МД5
РДМТ08
Gas-Dynamic Igniter
ГДВВВ-185
Gas-Dynamic Igniters
Bipropellant low thrust rocket engine
РАМТ135А
PAMT500A/I
РДМТ12
РДМТ 50М
РДМТ 100А
РДМТ 135М
РДМТ 200 К
РДМТ 200А
РДМТ 200М
Reactive Control System Module
Reactive Control System Module
Cutter for thermal cutting of materials
100ЭР568.49
100ЭР568.55
Mass Flow Rate Stabilizers
Mass Flow Rate Stabilizers
Solenoid Valves for Engineering Industry
Solenoid Valves for Engineering Industry
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El: 77-6097 from 14 February 2002. Publishes since February, 3, 1997.