Aerodynamic or hydrodynamic servo-valve, especially for use for the guidance and stabilisation of rockets

摘要

1,048,645. Deflecting propulsion Jets. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Aug. 1, 1963 [Aug. 7, 1962], No. 30490/63. Heading B7G. [Also in Division G3] An aerodynamic or hydrodynamic distributor comprises a chamber 2a, Fig. 2, into which are directed auxiliary jets 3a which impinge upon a main jet 1a and can be controlled to vary the distribution of the latter between outlets 4a, 5a. The distributor, shown at 13 in Fig. 3, is applicable to the control of the direction of flow 6 from a rocket nozzle 7 by means of sonic or supersonic jets 10, 11 connected with the outlets 4a, 5a. The main flow 1a to the distributor is derived from a reservoir or hot gas generator 12 and the auxiliary jets are fed by pipes 15, 16 with cold fluid from a reservoir 14 under the control of an electromechanical valve 17 which may have a rotary plug or deflector spoilers of variable height. To enable the distributor to meet the high pressures that exist in the rocket nozzle its main flow inlet and outlets are provided with convergent-divergent sections which cause the production of a shock wave in each outlet. Instead of a single distributor 13 a number of such elements may be arranged in cascade in which case only the distributor nearest to the rocket nozzle need have the convergentdivergent sections.