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    • 52. 发明专利
    • Rocket engine
    • ROCKET发动机
    • JPS59128955A
    • 1984-07-25
    • JP188583
    • 1983-01-10
    • Daicel Chem Ind Ltd
    • WATANABE TADAHIKO
    • F02K9/10F02K9/18F02K9/26
    • F02K9/26
    • PURPOSE:To obtain optimum thrust force X time, by arranging in the axial direction a combustion control member, which is installed partially in the circumferential direction of grains loaded in a rocket chamber and which has a portion closed toward the periphery. CONSTITUTION:A combustion control member 3, which is installed in the circumferential direction of grains 1 loaded in a rocket chamber 4 and which has a portion closed toward the periphery, is arranged in the axial direction. Thereby the web according to the inner-surface combustion system will become a one having substantially a diameter 2-3 times as large as the grains' 1, to cause substantial increase of the combustion progressive web. The combustion pattern thus obtained will transfer from the combustion initial face 1a to the combustion progressive face A one after another, wherein a comparatively large thrust force is obtained in the initial stage, while a comparatively small, approx. constant and stable thrust force is obtained continuously after passage of a certain period of time. This provides effectiveness for launching an aeronautical body in vertical position to a high altitude, as well as the reach can be stretched even in launching aslant.
    • 目的:为了获得最佳推力X时间,通过沿轴向布置燃烧控制构件,该燃烧控制构件部分地安装在装载在火箭室中的颗粒的圆周方向上,并且具有朝向周边封闭的部分。 构成:安装在装载在火箭室4中并且具有朝向周边封闭的部分的颗粒1的圆周方向上的燃烧控制构件3沿轴向布置。 因此,根据内表面燃烧系统的纤维网将变成具有基本上直径为颗粒1的2-3倍直径的纤维网,从而引起燃烧进行幅材的显着增加。 这样获得的燃烧模式将从燃烧初始面1a一个接一个地转移到燃烧渐进面A,其中在初始阶段获得相当大的推力,而相对较小的约 经过一段时间后,连续获得恒定和稳定的推力。 这提供了在高空垂直位置发射航空器的有效性,并且即使在发射时也可以伸展。
    • 53. 发明专利
    • INTERNAL COMBUSTION TYPE PROPELLANT GRAIN
    • JPS562447A
    • 1981-01-12
    • JP7663079
    • 1979-06-18
    • NISSAN MOTOR
    • ONOSHIMA NOBORU
    • F02K9/18
    • PURPOSE:To prevent a concentration of stress from being generated in the connection part of inner holes, by connecting the inner holes with different cross sectional shaped from each other through an annular groove with a diameter equal to or larger than a maximum diameter of said inner hole. CONSTITUTION:In a propellant grain 1 of internal combustion type, the first inner hole 2 extensibly located in the direction of axial line is formed at one side of its interior. Said inner hole 2 consists of an inner hole part 2a and a pair of grooved parts 2b which are linked to said part 2a and separated 180 deg. from each other. While in the grain 1 the second inner hole 3 extensibly located in the direction of axial line is formed at its another side. Said inner hole 3 consists of an inner hole part 3a and a plurality of sector parts 3b which are linked to said part 3a and placed a prescribed angle apart from each other. In a connection part of these inner holes 2, 3 an annular groove 4 is formed, and its inside diameter (d) is made larger than a maximum diameter D of the inner holes 2, 3. In this way, a thermal stress acted upon the connection part of the both inner holes 2, 3 can be dispersed by the annular groove 4.