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    Dual diaphragm three position actuator
    11.
    发明授权
    Dual diaphragm three position actuator 失效
    双隔膜三位执行器

    公开(公告)号：US4831915A

    公开(公告)日：1989-05-23

    申请号：US220928

    申请日：1988-07-15

    Applicant: Jack R. Roach

    Inventor： Jack R. Roach

    IPC: F01B19/00 ,  F15B11/12

    CPC classification number: F01B19/00 ,  F15B11/123

    Abstract: A dual diaphragm, multiposition vacuum actuator. Dual diaphragms in a housing define two vacuum chambers. A spring urges one diaphragm and an actuator rod extended, and the other diaphragm retracted. Vacuum in one chamber retracts the extended diaphragm and actuator rod to an intermediate position, and advances the retracted diaphragm. Vacuum added in the other chamber retracts both diaphragms and the rod as a unit to a fully retracted position.

    Abstract translation: 双隔膜，多位真空致动器。 外壳中的双隔膜限定两个真空室。 一个弹簧促使一个隔膜和一个执行器杆伸出，另一个隔膜缩回。 一个腔室中的真空将延伸的隔膜和致动器杆缩回到中间位置，并使缩回的隔膜前进。 在另一个室中添加的真空将两个隔膜和杆作为一个单元缩回到完全缩回的位置。

    Vacuum control device for the displacement of an element between at least three positions
    12.
    发明授权
    Vacuum control device for the displacement of an element between at least three positions 失效
    用于在至少三个位置之间移动元件的真空控制装置

    公开(公告)号：US4703684A

    公开(公告)日：1987-11-03

    申请号：US862998

    申请日：1986-05-14

    Applicant: Jean-Francois Bouvot ,  Jose LeBorgne

    Inventor： Jean-Francois Bouvot ,  Jose LeBorgne

    IPC: B60H1/00 ,  F15B11/12 ,  F15B15/10 ,  F01B19/00

    CPC classification number: F15B11/123 ,  B60H1/00442 ,  F15B15/10

    Abstract: A vacuum control device comprises a casing in which are disposed at least two substantially parallel movable cups, the first cup being connected to the element to be displaced. Springs are interposed respectively between the two cups and between the second cup and a bottom end-wall of the casing. Two pipes or nipples connected to a vacuum source and to atmospheric pressure open into the casing respectively within the space located between the two cups and within the space located between the second cup and the casing end-wall.

    Abstract translation: 真空控制装置包括壳体，其中设置有至少两个基本上平行的可移动杯，第一杯连接到要移动的元件。 弹簧分别插入在两个杯之间以及第二杯和壳体的底端壁之间。 连接到真空源和大气压力的两个管或乳头分别在位于两个杯之间的空间内以及位于第二杯和套管端壁之间的空间内分别敞开。

    Position regulator
    13.
    发明授权
    Position regulator 失效
    位置调节器

    公开(公告)号：US4061080A

    公开(公告)日：1977-12-06

    申请号：US697963

    申请日：1976-06-21

    Applicant: Nils Eskil Sundstrom

    Inventor： Nils Eskil Sundstrom

    IPC: F15B11/12 ,  F01B7/00

    CPC classification number: F15B11/123

    Abstract: A position regulator is provided which is effective to control, via a control unit, a pressure medium circuit to operate at different working pressures. The regulator comprises two or more pressure transmitting elements which divide an internal space into a number of pressure chambers, the pressure transmitting elements being arranged for axial movement within the position regulator. The invention provides pressure transmitting elements defining the pressure chambers which comprise diaphragms or the like which are attached in mutually spaced relationship in the position regulator and which, when subjected to a force, permit axial displacement movements.

    Abstract translation: 提供了一种位置调节器，其有效地通过控制单元控制压力介质回路以在不同的工作压力下操作。 调节器包括将内部空间分成多个压力室的两个或更多个压力传递元件，压力传递元件布置成在位置调节器内轴向移动。 本发明提供了限定压力室的压力传递元件，压力室包括在位置调节器中以相互间隔的关系附接的隔膜等，并且当受到力时允许轴向位移运动。

    Positive tri-position linear actuator
    14.
    发明授权
    Positive tri-position linear actuator 失效
    正向三位线性致动器

    公开(公告)号：US3791262A

    公开(公告)日：1974-02-12

    申请号：US3791262D

    申请日：1972-01-04

    Applicant: US AIR FORCE

    Inventor： STAEHLIN J ,  MEYER W

    IPC: F15B11/12 ,  F01B7/20

    CPC classification number: F15B11/123

    Abstract: A tri-position linear actuator having a pair of pistons slideably mounted within an outer housing. These two pistons are actuated by a pressure differential. By varying the differential pressures acting on one or both of the pistons the actuator is moved to three distinct longitudinal positions.

    Abstract translation: 一种三位置线性致动器，其具有可滑动地安装在外壳内的一对活塞。 这两个活塞由压差驱动。 通过改变作用在一个或两个活塞上的压差，致动器被移动到三个不同的纵向位置。

    Fluid operated position selecting device
    15.
    发明授权
    Fluid operated position selecting device 失效
    流体操作位置选择装置

    公开(公告)号：US3673926A

    公开(公告)日：1972-07-04

    申请号：US3673926D

    申请日：1970-11-03

    Applicant: NISSAN MOTOR

    Inventor： MOHRI YOHICHI

    IPC: F15B11/12 ,  F16H63/30

    CPC classification number: F16H63/3023 ,  F15B11/123 ,  F16H2061/307

    Abstract: A device for selecting three different positions, which includes a hollow body having formed therein first and second bores selectively communicating with a source of pressurized fluid, a first piston having a flange slidably fitted in the first bore and a hollow extension extending from the flange and slidably fitted in the second bore, a second piston having a flange slidably fitted in the second bore and a hollow extension extending from the flange of the second piston and slidably fitted in the inner peripheral wall of the extension of the first piston, and a piston rod rigidly connected to the flange of the second piston. The positions of the second piston is shifted by selectively drawing a pressurized fluid into the first and/or second bores.

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