Twin-shaft multi-lobed type hydraulic device
    1.
    发明授权
    Twin-shaft multi-lobed type hydraulic device 失效
    双轴多叶型液压装置

    公开(公告)号:US4761125A

    公开(公告)日:1988-08-02

    申请号:US30058

    申请日:1987-03-25

    IPC分类号: F04C2/08 F04C2/16 F04C18/16

    CPC分类号: F04C2/084 F04C2/16

    摘要: A hydraulic device having a first shaft including a first rotor, and a second shaft including a second rotor, the first and second rotors being constructed by adjacently fitting the same shape rotor elements, respectively. The rotor elements have teeth on the outer periphery thereof at a constant interval, and each tooth has a tip portion fluid-tightly engaged with an inner wall of a housing of the device. The rotor elements are adjacently fitted to the shaft in such a manner that the rotor elements are displaced in the same rotational direction along the axial direction of the shaft. The teeth tip portions of the rotor elements adjacent to each other are overlapped so that spiral paths are defined on the outer surface of the rotor.

    摘要翻译: 一种具有包括第一转子的第一轴和包括第二转子的第二轴的液压装置,所述第一和第二转子分别通过相邻地配合相同的形状转子元件而构成。 转子元件在其外周上以恒定间隔具有齿,并且每个齿具有与装置的壳体的内壁流体紧密接合的尖端部分。 转子元件以这样的方式相邻地安装到轴上,使得转子元件沿着轴的轴向在相同的旋转方向上移位。 彼此相邻的转子元件的齿尖部重叠,从而在转子的外表面上限定螺旋形路径。

    Power steering apparatus for a vehicle with yaw control
    2.
    发明授权
    Power steering apparatus for a vehicle with yaw control 失效
    用于具有偏航控制的车辆的动力转向装置

    公开(公告)号:US5078226A

    公开(公告)日:1992-01-07

    申请号:US537943

    申请日:1990-06-14

    IPC分类号: B62D6/02 B62D6/00 B62D6/04

    CPC分类号: B62D6/00 B62D6/04

    摘要: A power steering apparatus for a vehicle having a hydraulic mechanism for generating a force applied to a steering mechanism for reducing a force needed to operate a steering member (wheel). A device is provided for determining a condition wherein a yaw rate generated in the vehicle does not match a steering operation of the steering member. A hydraulic or electric torque motor is operated for generating a counter steering force applied to the steering mechanism, to cancel the yaw rate which does not match the operation of the steering member.

    摘要翻译: 一种用于车辆的动力转向装置,具有用于产生施加到转向机构的力的液压机构,用于减小操作转向构件(车轮)所需的力。 提供了一种用于确定其中在车辆中产生的横摆率与转向构件的转向操作不匹配的状况的装置。 操作液压或电动力矩电动机以产生施加到转向机构的相对转向力,以抵消与转向构件的操作不匹配的横摆角速度。

    Scroll pump with axially spaced pumping chambers in series
    3.
    发明授权
    Scroll pump with axially spaced pumping chambers in series 失效
    具有轴向间隔的泵送室的涡旋泵串联

    公开(公告)号:US4650405A

    公开(公告)日:1987-03-17

    申请号:US799252

    申请日:1985-11-18

    摘要: A multiple-turn scroll pump comprises a pumping unit on each lateral side of a base plate of an oscillatable scroll piston driven by an eccentric drive. Each pumping unit includes a spirally shaped groove in a scroll housing and a spirally shaped displacement blade forming part of the scroll piston. The groove in one of the pumping units extends from the peripheral part of the scroll housing through at least one turn of a spiral and terminates at the intermediate part of the housing. The groove in the other pumping unit also begins close to the peripheral part of the scroll housing but extends through a number of spiral turns greater than that of the groove in the first pumping unit. Passages are provided in the scroll piston to communicate grooves in both units in such a manner that the fluid drawn into the first pumping unit is compressed mainly in the second pumping unit and is discharged solely therefrom. Mechanism for constraining the movement of the oscillating piston with respect to the scroll housing is conveniently housed within the confinement of the groove in the first pumping unit to reduce the overall radial dimension of the pump.

    摘要翻译: 多圈涡旋泵包括在由偏心驱动器驱动的可振动涡旋活塞的基板的每个侧面上的泵送单元。 每个泵送单元包括涡旋壳体中的螺旋形槽和形成涡旋活塞的一部分的螺旋形位移叶片。 一个泵送单元中的槽从涡旋壳体的周边部分延伸通过至少一圈的螺旋,并终止于壳体的中间部分。 另一个泵送单元中的凹槽也开始靠近涡旋壳体的周边部分,但是延伸通过比第一泵送单元中的凹槽大的螺旋匝。 通道设置在涡旋活塞中,以使得两个单元中的槽连通,使得被吸入第一泵送单元的流体主要在第二泵送单元中被压缩并且仅从其排出。 用于限制振荡活塞相对于涡旋壳体的运动的机构方便地容纳在第一泵送单元中的槽的限制内,以减小泵的整体径向尺寸。

    Sliding-vane rotary compressor with specific cylinder bore profile
    4.
    发明授权
    Sliding-vane rotary compressor with specific cylinder bore profile 失效
    具有特定气缸孔型材的滑动叶片式旋转压缩机

    公开(公告)号:US4616984A

    公开(公告)日:1986-10-14

    申请号:US711839

    申请日:1985-03-14

    IPC分类号: F04C18/344 F04C18/00

    CPC分类号: F04C18/3441 F04C2250/301

    摘要: A multiple-vane rotary compressor having a cylinder bore profile especially designed to reduce the fluctuation in the overall drive torque applied to the rotor shaft. The cylinder bore profile is configured and designed so that the individual drive torque applied to an individual vane during the compression and delivery strokes varies along a drive torque-vane angle curve which approximates an isosceles triangle having a lower side corresponding to a range of angle of 180.degree.. The cylinder bore profile includes, for a profile section extending through an angle of 180.degree., a first region (i) in which the amount of vane projection is held substantially constant at a maximum value (D), a second region (ii) in which the amount of vane projection decreases at a higher rate, and a third region (iii) in which the amount of vane projection decreases to zero at a lower rate, the imaginary transitional point (A.sub.3) between the second and third regions being located at an angular position of 90.degree..

    摘要翻译: 一种具有气缸孔型材的多叶片式旋转压缩机,其特别设计用于减小施加到转子轴上的整体驱动转矩的波动。 气缸孔轮廓被构造和设计成使得在压缩和传送冲程期间施加到单个叶片的单个驱动扭矩沿着驱动扭矩 - 叶片角度曲线变化,该驱动扭矩 - 叶片角度曲线近似等腰三角形,其具有对应于 180度。 对于用于延伸180度角的轮廓部分,缸孔轮廓包括第一区域(i),其中叶片投影量基本上保持恒定在最大值(D),第二区域(ii) 其中叶片投影量以较高的速率降低;以及第三区域(iii),其中叶片投影量以较低的速率降低到零,第二和第三区域之间的假想过渡点(A3)位于 角度位置为90°。

    Variable displacement swash-plate type compressor
    5.
    发明授权
    Variable displacement swash-plate type compressor 失效
    可变排量斜盘式压缩机

    公开(公告)号:US4886423A

    公开(公告)日:1989-12-12

    申请号:US147036

    申请日:1988-01-20

    IPC分类号: F04B27/18

    摘要: A variable displacement swash-plate type compressor suitable for use as a refrigerant compressor of an automotive air conditioner has a cylinder block having a plurality of cylinder bores each slidably receiving a double-headed piston, a shaft driven by an automotive engine, a swash plate tiltably mounted on the shaft for rotation therewith to reciprocatorily move the pistons, and a spool for moving the swash plate axially of the shaft and changing the angle of tilt of the swash plate. The swash plate and the shaft are connected in such a manner that, when the swash plate is axially moved while changing its tilting angle, the position of stroke end of each piston is changed only in a working chamber on one end of the piston, whereas no change in the position of the stroke end occurs in the other working chamber on the other end of the piston.

    摘要翻译: 适合用作汽车空调的制冷剂压缩机的可变排量斜盘式压缩机具有气缸体,其具有多个气缸孔,每个气缸可滑动地容纳双头活塞,由汽车发动机驱动的轴,斜盘 可倾斜地安装在轴上以便与其一起旋转以使活塞往复运动,以及用于使旋转斜盘沿轴线移动并且改变斜盘的倾斜角度的线轴。 旋转斜盘和轴以这样的方式连接,即当斜盘在改变其倾斜角度的同时轴向移动时,每个活塞的冲程端的位置仅在活塞一端的工作室中改变,而 在活塞的另一端的另一个工作室中不发生行程端的位置变化。

    Hydraulic fluid supply system with variable pump-displacement arrangement
    7.
    发明授权
    Hydraulic fluid supply system with variable pump-displacement arrangement 失效
    具有可变泵排量布置的液压油供应​​系统

    公开(公告)号:US4597718A

    公开(公告)日:1986-07-01

    申请号:US741582

    申请日:1985-06-05

    CPC分类号: F04C14/02 B62D6/00

    摘要: Hydraulic fluid supply system for supplying high pressure hydraulic fluid to power actuators for power steering systems includes a pumping mechanism having independent pumping chambers adapted to discharge fluid to a supply line leading to the power actuator. The supply line contains a variable orifice and a flow control valve responsive to the pressure difference generated by the variable orifice. The pumping chambers include at least first and second pumping chambers connected to first and second feed lines. A switching valve operatively interconnected to the variable orifice and actuated by an electrically operable drive mechanism selectively connects the second feed line to the supply line or to the first feed line. When the drive mechanism shifts the switching valve so that the second feed line leading to the second pumping chamber is switched from the first feed line to communicate with the supply line, a part of the high pressure fluid flowing through the fluid line is returned to the second pumping chamber by bypassing the power actuator thereby disabling the second pumping chamber and reducing the flow rate of the fluid flowing to the power actuator. Disablement of the second pumping chamber during "drooping" reduces the effective overall displacement capacity of the pumping mechanism thereby saving a considerable amount of power. The system may be electronically controlled depending on various operational conditions of the vehicle and the like.

    摘要翻译: 用于供应高压液压流体以供动力转向系统的致动器的液压流体供应系统包括具有独立泵送室的泵送机构,其适于将流体排放到通向功率致动器的供应管线。 供应管线包含可变孔口和响应于可变孔口产生的压力差的流量控制阀。 泵送室包括至少连接到第一和第二馈送线的第一和第二泵送室。 可操作地互连到可变孔口并由电可操作的驱动机构致动的切换阀将第二进料管线选择性地连接到供应管线或第一进料管线。 当驱动机构移动切换阀使得通向第二泵送室的第二供给管线从第一供给管线切换到与供给管路连通时,流过流体管线的高压流体的一部分返回到 第二泵室通过旁路动力致动器,从而禁用第二泵送室并降低流向动力致动器的流体的流量。 在“下垂”期间,第二抽吸室的失效降低了泵送机构的有效整体排量,从而节省了相当大的功率。 该系统可以根据车辆的各种操作条件等进行电子控制。

    Scroll-type variable-capacity compressor having two control valves
    9.
    发明授权
    Scroll-type variable-capacity compressor having two control valves 失效
    具有两个控制阀的涡旋式可变容量压缩机

    公开(公告)号:US5577897A

    公开(公告)日:1996-11-26

    申请号:US457410

    申请日:1995-06-01

    IPC分类号: F04B49/00 F04C28/12

    CPC分类号: F04C28/125

    摘要: A scroll compressor wherein a cylinder is provided along the end plate of a stationary scroll member and a plurality of bypass holes which open in the end plate and can communicate with the space in the cylinder and a plurality of operating spaces formed between the spiral vanes of the stationary scroll member and a moving scroll member are successively opened by a plunger to communicate with the suction side, whereby the capacity may be changed smoothly. When reducing the capacity to close to 0 percent, another cylinder and plunger are used to bypass the discharge pressure to the suction side.

    摘要翻译: 一种涡旋式压缩机,其特征在于,沿着固定涡旋件的端板设置有气缸,在所述端板上开口的多个旁路孔与所述气缸中的空间连通,并且形成在所述螺旋叶片之间的多个操作空间 固定涡旋构件和动涡旋构件通过柱塞连续打开,以与吸力侧连通,从而可以平滑地改变容量。 当将容量降低到接近0%时,使用另一个气缸和柱塞将排出压力旁路到吸入侧。

    Scroll-type pump
    10.
    发明授权
    Scroll-type pump 失效
    滚动式泵

    公开(公告)号:US4527964A

    公开(公告)日:1985-07-09

    申请号:US538571

    申请日:1983-10-03

    CPC分类号: F04C2/02 F04C18/0269

    摘要: A scroll-type pump suitably used as a compressor in an automobile air-conditioning system. The pump is provided with a stationary scroll member and a movable scroll member, which movable scroll member rotates while maintaining contact with the stationary scroll member. A scroll shape of each of the scroll members is formed by a plurality of alternately arranged arc sections of a small radius of curvature and arc sections of a large radius of curvature smoothly connected to each other. A pump having an overall shape which corresponds to the shape of the space in which the pump is to be arranged in the vehicle is obtained.

    摘要翻译: 适合用作汽车空调系统中的压缩机的涡旋式泵。 该泵设置有固定涡旋件和可动涡旋件,该可动涡旋件能够在与固定涡旋件保持接触的同时旋转。 每个涡旋构件的涡旋形状由多个交替布置的弧形部分形成,并且弧形部分具有小的曲率半径并且弧形曲率半径平坦地连接。 获得具有对应于在车辆中布置泵的空间的形状的整体形状的泵。