Compact optimal and modulatable thrust device for controlling aerospace vehicles
    1.
    发明授权
    Compact optimal and modulatable thrust device for controlling aerospace vehicles 有权
    用于控制航空航天车辆的紧凑型优化和可调节推力装置

    公开(公告)号:US06543717B1

    公开(公告)日:2003-04-08

    申请号:US09720210

    申请日:2000-12-22

    IPC分类号: F42B1066

    CPC分类号: F02K9/86 F05D2240/1281

    摘要: The thrust device comprises a valve body (20) having a chamber (24) surrounding part of the needle, at least one gas admission opening (27) opening out into the chamber, and a gas outlet opening (25) opening out into the chamber and defined by a wall portion which co-operates with a nose portion (14) of a moving needle (10) to define an outlet section for gas leaving the chamber. Actuator means (40, 41, 43) control the position of the needle in the valve body by acting on a rear end portion of the needle. The nose (14) of the moving needle (10) has an aerodynamic concave profile (15) and the wall portion (29) which defines the outlet (25) from the chamber is shaped in such a manner as to be capable of directing the exiting gases essentially against the concave side of the nose of the needle, which needle acts as the main member for taking up thrust.

    摘要翻译: 所述推力装置包括具有围绕所述针的一部分的腔室(24)的阀体(20),至少一个开口到所述腔室中的气体入口(27)和通向所述腔室的气体出口开口(25) 并且由与移动的针(10)的鼻部(14)配合以限定用于离开腔室的气体的出口部分的壁部分限定。 致动器装置(40,41,43)通过作用在针的后端部分来控制针头在阀体中的位置。 移动针(10)的鼻部(14)具有空气动力学凹形轮廓(15),并且从腔室限定出口(25)的壁部分(29)成形为能够引导 离开气体基本上抵靠针头的鼻部的凹面,该针头作为用于承受推力的主要部件。

    Rocket engine nozzle that is steerable by means of a moving diverging portion on a cardan mount
    2.
    发明授权
    Rocket engine nozzle that is steerable by means of a moving diverging portion on a cardan mount 有权
    火箭发动机喷嘴,可通过万向接头上的移动发散部分转向

    公开(公告)号:US06948307B2

    公开(公告)日:2005-09-27

    申请号:US10500248

    申请日:2003-07-03

    IPC分类号: F02K1/00 F02K9/84

    CPC分类号: F02K9/84

    摘要: The nozzle comprises a moving diverging portion (20) and a static portion (16) secured to the rear end wall of the combustion chamber (12) of the engine. A cardan mount jointed link device connects the moving diverging portion of the nozzle to the static portion, the moving diverging portion and the static portion being in mutual contact via respective spherical surfaces (24a, 16a), and an actuator device (50a, 50b) acts on the moving diverging portion of the nozzle so as to be able to vary the direction of the thrust vector of the engine by modifying the orientation of the nozzle with sliding of the spherical surfaces one on the other. Resilient return means (62, 64) are interposed between the moving diverging portion (20) of the nozzle and the static portion (16) and act on the moving diverging portion in order to urge it towards the static portion so as to keep the spherical surfaces (24a, 16a) in mutual contact for any desired orientation of the nozzle.

    摘要翻译: 喷嘴包括移动发散部分(20)和固定到发动机的燃烧室(12)的后端壁上的静止部分(16)。 万向节安装接头连接装置将喷嘴的移动发散部分连接到静止部分,移动发散部分和静止部分经由相应的球形表面(24a,16a)相互接触,并且致动器装置(50a ,50b)作用在喷嘴的移动发散部分上,以便能够通过改变喷嘴的取向来改变发动机的推力矢量的方向,同时滑动球形表面。 弹性返回装置(62,64)插入在喷嘴的移动发散部分(20)和静止部分(16)之间并且作用在移动发散部分上,以将其推向静止部分,以便保持球形 为了喷嘴的任何所需取向,相互接触的表面(24a,16a)。