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224 条记录 (耗时 0.016 秒)

    Cooled pintle assembly
    1.
    发明授权
    Cooled pintle assembly 失效
    冷却紧固件总成

    公开(公告)号：US3712063A

    公开(公告)日：1973-01-23

    申请号：US3712063D

    申请日：1970-03-24

    申请人： BELL AEROSPACE CORP

    发明人： ANDRYSIAK S ,  MCKENNA R

    IPC分类号： F02K9/52 ,  F02K9/58 ,  F02K9/64 ,  F02K9/86 ,  F02K9/97 ,  F02K

    CPC分类号： F02K9/86 ,  F02K9/52 ,  F02K9/58 ,  F02K9/64 ,  F02K9/97

    摘要： To maintain a constant pressure in the combustion chamber of a rocket engine, which operates with either liquid and/or metallized propellants, a cooled throat pintle assembly is provided to vary the throat area in an E-D nozzle. The pintle design is a composite structure consisting of a Columbium alloy central rod member having in its cylindrical and injector portions a Grafoil intermediate layer and a Carbitex outer layer. The throat portion of the pintle assembly consists of stacked pyrolytic graphite washers having a spiral formed coolant passages. The throat, cylindrical, and injector portions of the pintle are gas film cooled with fuel-rich gases that are ducted through the center of the pintle from a pressurization system gas generator. The injector or forward end of the pintle is cooled by a gas film exiting from the pintle housing. The throat portion of the pintle is cooled by gases exiting through spiral grooves in the washers.

    摘要翻译： 为了在与液体和/或金属化的推进剂一起操作的火箭发动机的燃烧室中保持恒定的压力，提供冷却的喉咙组件以改变E-D喷嘴中的喉部区域。 枢轴设计是由Columbium合金中心杆构件组成的复合结构，其中其圆柱形和喷射器部分具有Grafoil中间层和Carbitex外层。 枢轴组件的喉部由具有螺旋形冷却剂通道的层叠热解石墨垫圈组成。 枢轴的喉部，圆柱形和注射器部分是用富含燃料的气体冷却的气膜，其通过来自加压系统气体发生器的枢轴的中心导管。 枢轴的注射器或前端由从枢轴外壳排出的气膜冷却。 枢轴的喉部由通过垫圈中的螺旋槽排出的气体冷却。

    Electromechanical control valve
    2.
    发明授权
    Electromechanical control valve 失效
    机电控制阀

    公开(公告)号：US3570807A

    公开(公告)日：1971-03-16

    申请号：US3570807D

    申请日：1969-01-14

    申请人： BELL AEROSPACE CORP

    发明人： STURMAN ODED E ,  SCIORTINO SALVATORE A ,  KASSIR ABDUL R

    IPC分类号： F16K31/06 ,  F16K31/08 ,  F16K31/10

    CPC分类号： F16K31/0682

    摘要： An electromechanical control valve in which a poppet is magnetically biased against a valve seat and is mechanically unseated upon decrease of the magnetic moment. A suspension plate carries the poppet on one side thereof and an armature on the other side to constitute an integrated assembly. A permanent magnet attracts the armature to thereby bias the poppet against the seat and deform the suspension plate. A coil is disposed on the armature and, when energized, develops a magnetic potential in opposition to the magnetic potential of the permanent magnet to thereby decrease the permanent magnet attraction whereby the deformed suspension plate, acting as a spring, urges the poppet out of the seat. The coil can be disposed so as to positively attract the armature through the null point to an opposite poll. The suspension plate also serves to isolate the magnetic circuit from the poppet-seat area.

    Balanced electromechanical control valve
    3.
    发明授权
    Balanced electromechanical control valve 失效
    平衡电动控制阀

    公开(公告)号：US3570806A

    公开(公告)日：1971-03-16

    申请号：US3570806D

    申请日：1969-01-14

    申请人： BELL AEROSPACE CORP

    发明人： STURMAN ODED E ,  SCIORTINO SALVATORE A ,  KASSIR ABDUL R

    IPC分类号： F16K31/08

    CPC分类号： F16K31/082

    摘要： An electromechanical control valve in which a poppet is biased against a seat therefor within an enclosing chamber having inlet and outlet ports and which is balanced against fluid pressure forces. Oppositely disposed walls of the chamber are deformable and a force-transmitting rod carries the poppet between such deformable walls whereby displacement of the poppet causes deformation of the walls to urge the poppet in the opposite direction. A system geometry is utilized which takes into account the effective surfaces of the poppet and the configurations of the walls when deformed. In particular embodiments, bias on the poppet is obtained by the application of the magnetic potential of a permanent magnet operatively associated with an armature extension of the poppet outside the chamber. The permanent magnet biases the poppet to its seat and a coil is disposed on the armature to oppose the permanent magnet potential whereby the deformed chamber walls, acting as springs, urge the poppet to an open position.

    Piston rod locking mechanism
    5.
    发明授权
    Piston rod locking mechanism 失效
    活塞杆锁定机构

    公开(公告)号：US3554094A

    公开(公告)日：1971-01-12

    申请号：US3554094D

    申请日：1969-02-20

    申请人： BELL AEROSPACE CORP

    发明人： GROSS GEORGE

    IPC分类号： B23Q1/28 ,  F15B15/26

    CPC分类号： F15B15/262 ,  B23Q1/28

    摘要： A piston rod locking mechanism in which a locking ring is formed with an eccentric bore for the rod. Means are provided for rotating the locking ring eccentrically with respect to the bore to thereby bind the rod against axial movement.