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159 条记录 (耗时 0.014 秒)

    Push pull multiplier linkage
    88.
    发明授权
    Push pull multiplier linkage 失效
    推拉乘法器连接

    公开(公告)号：US4608880A

    公开(公告)日：1986-09-02

    申请号：US667992

    申请日：1984-11-05

    申请人： Andrew Gahura ,  Graham M. Platt

    发明人： Andrew Gahura ,  Graham M. Platt

    IPC分类号： F02C9/28 ,  F16H35/16 ,  G05G11/00

    CPC分类号： F16H35/16 ,  F02C9/28 ,  G05G11/00 ,  Y10T74/20207

    摘要： A mechanical multiplier (25) in a fuel control for a gas turbine engine has a first track member (26) mounted for lateral movement and a first axially movable displacement member (34) connected to the first track member. A second track member (42) is mounted adjacent the first track member for pivoting movement about an axis (52). A follower assembly (54) operatively interconnects the track members and has rollers (120,122) respectively received in the tracks of the first and second track members. A second displacement member (55) is connected to the follower assembly for movement generally perpendicular to the direction of lateral movement of the first track member. The second displacement member is connected to the output piston (65) of a pressure transducer (66) which senses compressor discharge pressure; and the first displacement member is operatively connected to a fuel metering valve (100). The angular position of the second track member with respect to the first track member represents a set ratio (W/P) of fuel flow (W) to compressor discharge pressure (P).

    摘要翻译： 用于燃气涡轮发动机的燃料控制中的机械乘法器（25）具有安装用于横向移动的第一轨道构件（26）和连接到第一轨道构件的第一轴向移动位移构件（34）。 第二轨道构件（42）安装在第一轨道构件附近，用于围绕轴线（52）枢转运动。 跟随器组件（54）可操作地将轨道构件互连，并具有分别容纳在第一和第二轨道构件的轨道中的辊（120,122）。 第二位移构件（55）连接到从动组件，用于大致垂直于第一轨道构件的横向运动的方向移动。 第二位移构件连接到感测压缩机排气压力的压力传感器（66）的输出活塞（65）; 并且第一位移构件可操作地连接到燃料计量阀（100）。 第二轨道构件相对于第一轨道构件的角位置表示燃料流量（W）与压缩机排气压力（P）的设定比（W / P）。

    Dual stepper motor actuator for fuel metering valve
    89.
    发明授权
    Dual stepper motor actuator for fuel metering valve 失效
    用于燃油计量阀的双步进电机执行器

    公开(公告)号：US4608820A

    公开(公告)日：1986-09-02

    申请号：US730000

    申请日：1985-05-03

    申请人： Albert H. White ,  Robert E. Peck ,  Gene A. Meyer ,  Raymond H. Devanney

    发明人： Albert H. White ,  Robert E. Peck ,  Gene A. Meyer ,  Raymond H. Devanney

    IPC分类号： F02C9/38 ,  F02C9/46

    CPC分类号： F02C9/38 ,  F02C9/46

    摘要： A fuel control for a gas turbine engine has an actuator (24) for a fuel metering valve (22) which includes two stepper motors (46 and 48) which selectively drive a differential mechanism operatively connected to the valve. The differential mechanism includes two identical gear assemblies (60, 64) which are mounted for rotation upon a shaft (26) connected to the valve. The gear assemblies include worm gears (58, 62) in engagement with worms (54, 56) driven by the stepper motors and bevel gears (68, 70). A spider bevel gear (66), carried by the shaft, is in meshing engagement with the bevel gears of the gear assemblies such that rotation of one of the gear assemblies with the other at rest causes a circumferential movement of the spider bevel gear which rotates the shaft and positions the valve. Two identical electronic control units (A, B), which each sense selected engine parameters are respectively connected to the stepper motors for controlling their operation. Only one of the electronic control units functions to control its stepper motor during normal operation while the positions worm and gear assembly associated with the other stepper motor remain frozen without any backdriving. Changeover to the other electronic control unit because of a malfunction or other reason may be effected by switching logic or operation of a selector switch (100).

    摘要翻译： 用于燃气涡轮发动机的燃料控制器具有用于燃料计量阀（22）的致动器（24），其包括两个步进电动机（46和48），其选择性地驱动可操作地连接到阀的差动机构。 差速机构包括两个相同的齿轮组件（60,64），其被安装成在连接到阀的轴（26）上旋转。 齿轮组件包括与由步进电机和锥齿轮（68,70）驱动的蜗杆（54,56）接合的蜗轮（58,62）。 由该轴承载的一个齿锥齿轮（66）与齿轮组件的锥齿轮啮合啮合，使得一个齿轮组件与其他齿轮组件之间的转动停止，导致该旋转的齿轮锥齿轮的周向运动 轴和定位阀。 两个相同的电子控制单元（A，B）分别连接到步进电机以控制它们的操作。 只有一个电子控制单元用于在正常操作期间控制其步进电机，而与其他步进电机相关联的位置蜗杆和齿轮组件在没有任何反向驱动的情况下保持冷冻。 由于故障或其它原因导致切换到另一个电子控制单元可以通过切换逻辑或切换开关（100）的操作来实现。

    High thrust capacity shaft seal assembly for fuel pumps
    90.
    发明授权
    High thrust capacity shaft seal assembly for fuel pumps 失效
    用于燃油泵的高推力容量轴封组件

    公开(公告)号：US4605235A

    公开(公告)日：1986-08-12

    申请号：US649676

    申请日：1984-09-12

    申请人： Jack G. Sundberg ,  Paul L. Haynes, Jr.

    发明人： Jack G. Sundberg ,  Paul L. Haynes, Jr.

    IPC分类号： F04D29/12 ,  F16J15/34

    CPC分类号： F16J15/3464 ,  F04D29/126

    摘要： A shaft seal assembly (2) for a fuel pump includes a seal housing (4) attached to the fuel pump housing (6). A drive shaft (10) mounted for rotation in the fuel pump housing has a sealing face (14) which is engaged by a thrust face (42) of a thrust member (40) and by a seal face (18) of a carbon face seal (20). The thrust member and the carbon face seal are positioned with a steel carrier (26) mounted in the seal housing. A universal washer (32) is located between the carrier and the rear wall of the seal housing so that the carrier may undergo universal movement in response to movements of the thrust member. Misalignments between the axis of the shaft and the axis of the seal housing result in corresponding movements of the thrust member and the carrier which enable the axis of the face seal to remain aligned with the axis of the shaft. This arrangement permits the carbon face seal to be pressure balanced so that a relatively high fuel pressure surrounding the shaft will not produce unacceptable wear of the carbon face seal.

    摘要翻译： 用于燃料泵的轴封组件（2）包括附接到燃料泵壳体（6）的密封壳体（4）。 安装成用于在燃料泵壳体中旋转的驱动轴（10）具有密封面（14），该密封面（14）由推力构件（40）的推力面（42）和碳表面（18）的密封面 密封（20）。 推力构件和碳面密封件与安装在密封壳体中的钢托架（26）定位。 通用垫圈（32）位于承载件和密封壳体的后壁之间，使得承载件可以响应推力构件的运动而经受万能运动。 在轴的轴线和密封壳体的轴线之间的对准导致推力构件和载体的相应运动，使得面密封件的轴线能够保持与轴的轴线对准。 这种布置允许碳面密封件被压力平衡，使得围绕轴的相对较高的燃料压力不会产生不可接受的碳面密封的磨损。