Aerodynamic or hydrodynamic servovalve, especially for use for the guidance and stabilisation of rockets

Claim 1

A JET DEFLECTING DEVICE COMPRISING: (A) A PURE FLUID VALVE COMPRISING A DEFLECTION CHAMBER HAVING TWO OUTLET CONDUITS, AN INLET CONDUIT OPENING INTO THE CHAMBER OPPOSITE THE TWO OUTLET CONDUITS, TWO AUXILIARY NOZZLES OPENING INTO THE CHAMBER ON EITHER SIDES OF THE INLET CONDUIT, A SONIC THROAT FOLLOWED BY A DIVERGENT NOZZLE IN THE INLET CONDUIT AND MEANS FOR ESTABLISHING A FLOW OF FLUID IN THE INLET CONDUIT IN ORDER TO FORM AN INCIDENT JET OF AT LEAST SONIC SPEED ISSUING FROM THE INLET CONDUIT IN THE DEFLECTION CHAMBER, AND MEANS FOR SUPPLYING THE AUXILIARY NOZZLES SELECTIVELY WITH FLUID IN ORDER TO FORM AT LEAST ONE AUXILIARY JET IN THE CHAMBER TO DEFLECT THE INCIDENT JET BETWEEN THE TWO OUTLET CONDUITS; (B) A CONVERGENT-DIVERGENT NOZZLE IN EACH OUTLET CONDUIT ADJACENT THE DEFLECTION CHAMBER; (C) A JET DEFLECTING RESTRICTED NOZZLE AT THE END OF EACH OUTLET CONDUIT; AND (D) BENDS IN THE OUTLET CONDUITS DOWNSTREAM OF THE CONVERGENT-DIVERGENT NOZZLES TO FIT THE SAID CONDUITS TO THE JET DEFLECTING NOZZLES.