| 摘要 |
1,040,183. Rocket motors. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES, O.N.E.R.A. July 16, 1963 [July 18, 1962], No. 28063/63. Heading F1J. [Also in Division F3] A gas generator or rocket motor has energy derived from the spontaneous reaction occurring between fluid and solid fuel components, the fluid being introduced into the motor by means of injection devices situated within the combustion chamber and the solid propellant forming a lining on the inside of the combustion chamber. The rocket motor comprises a combustion chamber 1 lined with two solid components 3a, 3b and has a stainless steel diaphragm 5 which creates turbulence within the flow stream while two sets of injector devices 6, 11 (Fig. 2, not shown) are provided for the introduction of nitric acid. The injectors 6 form two annular rows on a plate 7 which is the front end of the combustion chamber while the second set of injectors 11 is mounted downstream on the diaphragm 5. The acid is supplied via a valve 9, also used for starting and stopping the rocket motor, and the injectors 11 are fed by a conduit 12 and a toroidal shaped steel compartment 10 all of which are cooled by the incoming liquid. The injectors 11 may consist of a row of injectors directed either upstream, downstream or perpendicularly to the flow direction, or alternatively a cylindrical or conical sleeve with rows of holes emitting fluid in directions almost tangential to the sleeve. The relative rate of liquid delivered by the two injector devices is controlled by a sleeve 13 with suitably sized orifices affecting the supply to the conduit 12. Another embodiment (Fig. 6, not shown) shows a second diaphragm 5a supporting a third set of injection devices fed by a conduit located on the outside of the combustion chamber. A further embodiment (Fig. 10, not shown) shows a conical shape deflector 16 immediately downstream of the diaphragm 5 which deflects the liquid towards the solid layer 3b. The solid component 3a is designed to burn chiefly in the liquid phase and consists of 90% paratoluidine and 10% polyvinyl chloride by weight, while the component 3b burns chiefly in the gaseous phase and has proportions of 85% and 15% respectively. |
