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    • 28. 发明专利
    • BURNING TEST DEVICE OF ROCKET MOTOR
    • JPS5990747A
    • 1984-05-25
    • JP19968682
    • 1982-11-16
    • NISSAN MOTOR
    • AOKI ICHIROUKUWABARA TAKUO
    • F02K9/96
    • PURPOSE:To obtain more accurate measured data in the burning characteristic test of a propellant by a structure wherein the outer periphery of a motor case is covered with heat insulating material and at the same time a means for holding a rocket motor at a predetermined temperture by cooling and heating is arranged onto said periphery. CONSTITUTION:A heating pipe 9 and a cooling pipe 10 are spirally wound around the outer peripheral part of a motor case 1. An outer peripheral cover 11 is positioned by fitting a shell part 11c to both of a front and a rear side plates 11a and 11b through brackets 12a and 12b between said side plates 11a and 11b. Furthermore, the heating pipe 9 and the cooling pipe 10 are connected to a boiler 9a, a control valve 9b and a cooler 10a and a control valve 10b, all of which are a part of a temperature control device. In addition, heat insulating material 13 is packed within the outer peripheral cover 11. Due to the structure as mentioned above, the temperature of the motor case 1 is held at a set state for performing a burning test of a propellant 14. Accordingly, more accurate data on the propellant 14 can be measured.
    • 30. 发明专利
    • RAM ROCKET
    • JPS56135735A
    • 1981-10-23
    • JP3849480
    • 1980-03-25
    • NISSAN MOTOR
    • KUWABARA TAKUONOTAKE SHINJIKOSAKA KATSUAKI
    • F02K7/18
    • PURPOSE:To enhance the corrosion-resisting property of an injector and to stabilize the quantity of production of combustible gas and the properties of the gas by a method wherein a nozzle throat to which ceramic coating is applied is projected out in the injector provided between the primary and secondary combustion chambers of the ram rocket. CONSTITUTION:Inside the front part of the ram rocket 11 a solid propellant 18 is filled up and in the rear thereof the primary combustion chamber having an igniter 10 is formed. In the further rear thereof, the secondary combustion chamber 15 is formed through the intermediary of the injector 23 and the air for combustion is introduced by a diffuser 9. The injector 23 has a number of nozzle holes 22, 23 in the front and rear surfaces thereof and the nozzle throat 16 on the surface of which ceramic coating is applied from the direction of the outer periphery thereof is arranged in projection therein.