Double racks and pinion type rotary actuator
    32.
    发明申请
    Double racks and pinion type rotary actuator 审中-公开
    双齿轮和小齿轮式旋转执行机构

    公开(公告)号:US20030041598A1

    公开(公告)日:2003-03-06

    申请号:US10217440

    申请日:2002-08-14

    CPC classification number: F15B15/065 F15B11/0413 F15B11/076 F15B15/24

    Abstract: Of first and second two pressure chambers which are respectively formed on both sides of a first rack and a second rack, incompressible liquid is filled in the second pressure chambers which are positioned on the sides of back pressure at a driving time of the racks, and the second pressure chambers of the both racks are caused to communicate with each other via a throttle.

    Abstract translation: 分别形成在第一齿条和第二齿条的两侧的第一和第二两个压力室,不可压缩的液体填充在位于机架行驶时的背压侧的第二压力室中,以及 两个齿条的第二压力室经由节气门彼此连通。

    Bi-fluid actuator
    33.
    发明申请
    Bi-fluid actuator 失效
    双流体致动器

    公开(公告)号:US20020166445A1

    公开(公告)日:2002-11-14

    申请号:US10140483

    申请日:2002-05-07

    Abstract: The invention is a bi-fluid actuator for precise bi-directional movement and positioning of a mechanical object or load. The bi-fluid actuator includes a pneumatic fluid container defining opposed first and second pneumatic fluid chambers, and having a first mechanical object secured between the chambers; a hydraulic fluid container defining opposed first and second hydraulic fluid chambers, and having a second mechanical object secured between the first and second hydraulic chambers; a pneumatic fluid controller; and, a hydraulic fluid controller. Directing pneumatic fluid into either the first or second pneumatic chambers, while controlling flow of hydraulic fluid between the first and second hydraulic chambers, controls movement and positioning of the mechanical objects which may be secured to a load.

    Abstract translation: 本发明是用于机械物体或负载的精确双向运动和定位的双流体致动器。 双流体致动器包括限定相对的第一和第二气动流体室的气动流体容器,并且具有固定在室之间的第一机械物体; 限定相对的第一和第二液压流体室的液压流体容器,并且具有固定在第一和第二液压室之间的第二机械物体; 气动流体控制器; 和液压流体控制器。 将气动流体引导到第一或第二气动室中,同时控制第一和第二液压室之间的液压流体的流动,控制机械物体的移动和定位,这些机械物体可被固定到负载上。

    Operating cylinder
    34.
    发明授权
    Operating cylinder 有权
    操作气缸

    公开(公告)号:US06386147B1

    公开(公告)日:2002-05-14

    申请号:US09467887

    申请日:1999-12-21

    Applicant: René Fransen

    Inventor: René Fransen

    Abstract: A piston and cylinder arrangement for opening and closing entrance or exit doors or both in a milking compartment of a fully automated milking system. The piston and cylinder arrangement comprises an elongated cylinder having two pistons connected in tandem to an elongated piston rod. The cylinder is hermetically divided into two cylindrical portions each containing one of the pistons. The piston acts against a liquid in one portion and in the other portion the piston is actuated by pneumatic pressure. The piston rod is extended through the end of the cylinder and is connected to open and close an entrance door. The cylindrical portion containing the liquid has the liquid on both sides of the piston connected by a check-valve and a by-pass valve. To block movement of the pistons, the by-pass valve is retained in a closed position by pneumatic pressure from a supply of pressurized gas for actuating the piston in the pneumatic side of the cylinder. The by-pass valve is a sliding valve urged into an open position by a compression spring when the valve is not closed by pneumatic pressure. Both the by-pass valve and the check valve are disposed external to the cylindrical housing.

    Abstract translation: 一种用于在全自动挤奶系统的挤奶室中打开和关闭入口或出口门或两者的活塞和气缸装置。 活塞和气缸装置包括具有串联连接到细长活塞杆的两个活塞的细长气缸。 气缸被气密地分成两个圆柱形部分,每一个都包含一个活塞。 活塞在一部分中作用在液体上,而在另一部分中,活塞由气动压力致动。 活塞杆延伸穿过气缸的端部并连接以打开和关闭入口门。 容纳液体的圆筒部分通过止回阀和旁通阀连接活塞两侧的液体。 为了阻止活塞的运动,旁通阀通过来自用于致动气缸的气动侧中的活塞的加压气体的气动压力保持在关闭位置。 旁通阀是当阀未被气压关闭时通过压缩弹簧推动到打开位置的滑阀。 旁通阀和止回阀均设置在圆柱形壳体的外部。

    Fluid-operated actuating device
    35.
    发明授权
    Fluid-operated actuating device 失效
    流体驱动的致动装置

    公开(公告)号:US4526088A

    公开(公告)日:1985-07-02

    申请号:US444828

    申请日:1982-11-26

    Abstract: A fluid-operated actuating device of the type including an actuating cylinder member, an axially movable actuating piston rod member, and actuating fluid connection means for introducing actuating fluid to and removing actuating fluid from the actuating cylinder member so as to adjust the relative axial position of the actuating cylinder and piston members and including structure for damping the movement of the piston rod member with respect to the cylinder member.

    Abstract translation: 一种流体操作的致动装置,其类型包括致动缸构件,可轴向移动的致动活塞杆构件和致动流体连接装置,用于将致动流体引导到致动流体并从致动缸构件移除致动流体,以便调节相对轴向位置 并且包括用于阻尼活塞杆构件相对于气缸构件的运动的结构。

    Constant speed actuator
    36.
    发明授权
    Constant speed actuator 失效
    恒速执行器

    公开(公告)号:US4145959A

    公开(公告)日:1979-03-27

    申请号:US771240

    申请日:1977-02-23

    Abstract: A constant speed actuator significantly characterized by being able to produce a displacement at constant speed, even though the loading on a hydraulically damped piston is substantially varied. The actuator consists of a pneumatic driving pressure which acts against a volume of hydraulic fluid, through a interface with a free piston. The hydraulic fluid, thus acted upon by the pneumatic pressure, flows to the opposite side of the hydraulic load piston through a hydraulic fluid by-pass at a constant volumetric rate regardless of the loading on the hydraulic piston. The constant volume by-pass flow is automatically controlled by employing a constant volume valve in the by-pass. Consequently, a consistent, predictable speed of actuation is achieved over a wide range of hydraulic piston loadings and pneumatic supply pressure.

    Abstract translation: 即使在液压阻尼活塞上的载荷基本上是变化的,恒速致动器显着地特征在于能够以恒定速度产生位移。 致动器由气动驱动压力,其通过与自由活塞的接口作用于一定体积的液压流体。 因此,由液压活塞作用的液压流体以与液压活塞上的负载无关的体积流量,通过液压流体旁通流到液压负载活塞的相对侧。 通过在旁路中采用恒定体积的阀门来自动控制恒定体积的旁路流量。 因此,在广泛的液压活塞负载和气动供应压力下实现一致的可预测的致动速度。

    Actuator and latch
    37.
    发明授权
    Actuator and latch 失效
    执行器和锁具

    公开(公告)号:US3834282A

    公开(公告)日:1974-09-10

    申请号:US35713673

    申请日:1973-05-04

    Applicant: US NAVY

    Inventor: KONGELBECK S

    Abstract: The invention relates to actuator mechanisms and particularly provides a shock-absorbing actuator apparatus comprised of an actuator piston buffered by both a mechanical buffer and a hydraulic buffer, the mechanical buffer being comprised of stacked Belleville washers, a driven element carried on a buffer piston rod, and a driving element carried on a buffer rod, the structure acting to cushion the movement of an actuator piston.

    Abstract translation: 本发明涉及致动器机构,并且特别地提供了一种减震致动器装置,包括由机械缓冲器和液压缓冲器缓冲的致动器活塞,机械缓冲器包括堆叠的Belleville垫圈,承载在缓冲活塞杆上的从动元件 以及驱动元件,其承载在缓冲杆上,所述驱动元件用于缓冲致动器活塞的运动。

    Apparatus for effecting oscillatory movement of an output member
    38.
    发明授权
    Apparatus for effecting oscillatory movement of an output member 失效
    用于影响输出会员振荡运动的装置

    公开(公告)号:US3831500A

    公开(公告)日:1974-08-27

    申请号:US29735572

    申请日:1972-10-13

    Inventor: KITAMURA Y MISONO S

    Abstract: An apparatus for effecting oscillatory movement of an output member comprises a pair of single-acting fluid reciprocatory motors each having a working piston reciprocal through a working stroke and a return stroke and the motors are alternately supplied with motive fluid to effect synchronous reciprocation of the working pistons in opposite stroke directions. Each working piston is connected to a common roller chain and the roller chain engages with chain sprockets around the periphery of the output member so that alternate movement of each working piston through its working stroke drives the roller chain in opposite directions to thereby impart oscillatory movement to the output member. A dampening device is connected to each reciprocatory motor to dampen the impact of each working piston at the end of both its working and return strokes.

    Abstract translation: 用于实现输出构件的振荡运动的装置包括一对单作用流体往复运动马达,每个单作用流体往复运动马达各自具有通过工作行程和回程行程往复运动的工作活塞,并且马达交替地供给运动流体以实现工作的同步往复运动 活塞在相反的行程方向。 每个工作活塞连接到普通的滚子链上,滚子链与输出构件周围的链轮啮合,使得每个工作活塞通过其工作行程的交替运动在相反的方向上驱动滚子链,从而使振动运动 输出成员。 阻尼装置连接到每个往复式电动机,以在其工作和返回行程结束时抑制每个工作活塞的冲击。

    Air-hydraulic linear feed device
    40.
    发明授权
    Air-hydraulic linear feed device 失效
    空气液压线性进给装置

    公开(公告)号:US3603206A

    公开(公告)日:1971-09-07

    申请号:US3603206D

    申请日:1970-03-16

    Abstract: A main frame mounts an air cylinder acting through an hydraulic cylinder with the pistons of the two cylinders forwardly connected linearly moving a fluid motor, gear train and spindle forwardly in a feed stroke and rearwardly in a retraction stroke. The hydraulic cylinder controls the speed of the air cylinder during a fast portion of the feed stroke by the flow of hydraulic fluid through a major hydraulic fluid passageway from the forward to the rearward end of hydraulic cylinder, and during a slow portion of the feed stroke, a valve in the major hydraulic fluid passageway shunts the hydraulic fluid through an adjustable needle-valve-controlled, restricted hydraulic fluid passageway. A constant supply of hydraulic fluid is always maintained in the major and restricted hydraulic fluid passageways by a resiliently urged plunger in a supply chamber connected to the major hydraulic fluid passageway. Return of hydraulic fluid to the forward end of the hydraulic cylinder during a fast retraction stroke is permitted directly forwardly through the hydraulic cylinder piston by a series of check valves. Fluid for rotatably driving the fluid motor is directed through a stationary fluid supply tube extending coaxial of the air and hydraulic cylinder pistons and a common piston rod of said pistons rearwardly telescopes the stationary fluid supply tube and forms a movable fluid supply tube communicating with the fluid motor. A valve seat is formed between a radially relieved forward end of the stationary fluid supply tube and an internal annular shoulder of the movable fluid supply tube closing off the fluid supply to the fluid motor when the pistons are in fully retracted position and permitting fluid flow when the pistons are moved forwardly commencing the feed stroke.

Patent Agency Ranking