Piston-type pressure accumulator for traction slip controlled brake
systems and switching arrangement for same
    111.
    发明授权
    Piston-type pressure accumulator for traction slip controlled brake systems and switching arrangement for same 失效
    用于跟踪滑动控制制动系统的活塞式压力蓄能器和相应的开关装置

    公开(公告)号:US5148834A

    公开(公告)日:1992-09-22

    申请号:US614803

    申请日:1990-11-16

    Abstract: A piston-type pressure accumulator for traction slip controlled brake systems, and a switching arrangement provided therewith. An accumulator piston (2) is hydraulically pressurized through a compression spring (1) and slidingly guided within a housing (4). At least one sealing element (27) is provided at the accumulator piston (2) which separates an accumulator chamber (21) from a spring chamber (24). The compression spring (1) is clamped between a first cap (3) directly contacting and surrounding the accumulator piston (2) and a second cap (5) straddling the housing (4) and the first cap (3), the first cap (3) performing a relative movement within the second cap (5) which is sensed by a control switch (7), charging of the accumulator chamber 21 is controlled by energization of a loading valve (8) and pump (9), in turn controlled by the control switch (7).

    Abstract translation: 用于牵引滑动控制制动系统的活塞式压力蓄能器,以及与其一起提供的开关装置。 蓄能器活塞(2)通过压缩弹簧(1)液压加压,并在壳体(4)内滑动引导。 在蓄能器活塞(2)上设置有至少一个密封元件(27),其将蓄能器室(21)与弹簧室(24)分离。 压缩弹簧(1)夹紧在直接接触并围绕蓄能器活塞(2)的第一盖(3)和跨过壳体(4)和第一盖(3)的第二盖(5)之间,第一盖 3)在由控制开关(7)感测到的第二盖(5)内执行相对运动,蓄能器室21的充电通过加载阀(8)和泵(9)的通电来控制,进而控制 通过控制开关(7)。

    Accumulator
    112.
    发明授权
    Accumulator 失效
    累加器

    公开(公告)号:US4858898A

    公开(公告)日:1989-08-22

    申请号:US292377

    申请日:1988-12-30

    Abstract: A rod is inserted in a first cylinder. A first oil chamber is defined by the inner surface of the first cylinder. The rod can be reciprocated with a first stroke. A second cylinder is coupled to the first cylinder by a connecting member. A metal bellows is housed in the second cylinder. A gas chamber is defined by the inner surface of the bellows. A second oil chamber is defined by the outer surface of the bellows and the inner surface of the second cylinder. The bellows contracts with a second stroke corresponding to the first stroke of the rod. The first and second oil chambers communicate with each other via an oil path formed in the connecting member. A valve seat is arranged on an end wall of the second cylinder. A valve body is fixed to the bellows so as to oppose the valve seat. If the bellows expands farther than the second stroke when a gas is supplied into the gas chamber, the valve body is brought into contact with the valve seat. When the valve body and the valve seat are brought into contact with each other, the oil is entrapped in a gap between the inner surface of the second cylinder and the outer surface of the bellows body.

    Abstract translation: 杆插入第一气缸。 第一油室由第一气缸的内表面限定。 杆可以与第一冲程往复运动。 第二气缸通过连接构件联接到第一气缸。 金属波纹管容纳在第二个气缸中。 气体室由波纹管的内表面限定。 第二油室由波纹管的外表面和第二气缸的内表面限定。 波纹管以对应于杆的第一冲程的第二冲程收缩。 第一和第二油室通过形成在连接构件中的油路相互连通。 阀座设置在第二气缸的端壁上。 阀体固定在波纹管上以与阀座相对。 如果当气体供应到气室中时波纹管比第二冲程更远,则阀体与阀座接触。 当阀体和阀座彼此接触时,油被截留在第二气缸的内表面和波纹管体的外表面之间的间隙中。

    Pressure-balanced seals for vented accumulators

    公开(公告)号:US4693276A

    公开(公告)日:1987-09-15

    申请号:US906067

    申请日:1986-09-11

    Inventor: Keith H. Fulmer

    Abstract: The pressure accumulator (10) comprises a cylindrical housing (12) having a bore (14) with a piston received slidably therein. The piston (30) has an H-shaped cross section and includes a reduced diameter portion (34) extending longitudinally along the piston (30), and a sealing device (36, 38) disposed at each end of the reduced diameter portion (34). A cylindrical sleeve (44) is received in the reduced diameter portion (34) such that each end of the sleeve (44) abuts a respective sealing device (36, 38). The housing (12) has an exterior circumferential groove (20) with an O-ring (26) therein, and a radial opening (22) extending between the circumferential groove (20) and bore (14). Alternatively, the piston (30) may have a longitudinal opening (61) extending from one side of the piston to grooves (63, 64) at the other end (32), the grooves (63, 64) receiving a ring (72) which is subjected to fluid pressure transmitted through the longitudinal opening (61) and expanded radially outwardly against an angled portion (73) of a force-transmitting member (74) which moves longitudinally against seals (76, 77) disposed in one of the grooves (63, 64).

    Hydropneumatic floating-piston accumulator
    114.
    发明授权
    Hydropneumatic floating-piston accumulator 失效
    液压浮动活塞蓄能器

    公开(公告)号:US4644976A

    公开(公告)日:1987-02-24

    申请号:US718001

    申请日:1985-03-29

    Abstract: A hydropneumatic accumulator has a separator piston, movable in the chamber of a housing. A switch member is attached to the separator piston by a support for simultaneous movement. Sensors can be influenced by the switch member position. The switch member is surrounded by a tube member which supports the sensors and is attached to the housing. A filling attachment is provided on the tube member. A filling conduit extends within the tube member and adjacent the support to simplify the configuration of the hydropneumatic accumulator.

    Abstract translation: 液压气动蓄能器具有可在壳体的腔室中移动的分离器活塞。 开关构件通过用于同时移动的支撑件附接到分离器活塞。 传感器可能受到开关构件位置的影响。 开关构件由支撑传感器并附接到壳体的管构件包围。 在管构件上设置有填充附件。 填充导管在管构件内延伸并与支撑件相邻,以简化液压气动蓄能器的构造。

    Hydraulic device especially a hydropneumatic accumulator
    115.
    发明授权
    Hydraulic device especially a hydropneumatic accumulator 失效
    液压装置尤其是液压气动蓄能器

    公开(公告)号:US4375227A

    公开(公告)日:1983-03-01

    申请号:US229280

    申请日:1981-01-28

    Abstract: A hydraulic device, such as a hydropneumatic piston accumulator, having a freely displaceable piston which divides the cylinder into a liquid chambers and a gas chamber on opposite sides of the piston. In order to reduce the friction of the piston seals and the heat produced thereby and at the same time guarantee an effective sealing the piston during its initial or terminal movement close to its end position cooperates with a second sealing member at the end wall of the liquid chamber through a first sealing member, and between these sealing members a friction seal is arranged for preventing back flow of liquid from the liquid chamber to the inlet at the end wall but in flow of liquid in the opposite direction in additional the first sealing member is axially displaceable in relation to the piston to a limited extent.

    Abstract translation: 液压装置,例如液压气动活塞蓄能器,其具有可自由移动的活塞,该活塞将气缸分成液体室和在活塞的相对侧上的气室。 为了减少活塞密封件的摩擦力和由此产生的热量,同时保证了活塞在其最终或终端运动过程中接近其最终位置的有效密封,与液体端壁处的第二密封件配合 腔室通过第一密封构件,并且在这些密封构件之间设置有摩擦密封件,用于防止液体从液体室向端壁处的入口逆流,但是在另一方面,液体沿相反方向流动,第一密封构件 相对于活塞可轴向移动到有限的程度。

    Packing arrangement for a floating piston
    116.
    发明授权
    Packing arrangement for a floating piston 失效
    浮动活塞的包装布置

    公开(公告)号:US4362304A

    公开(公告)日:1982-12-07

    申请号:US211279

    申请日:1980-11-28

    Applicant: Walter Hunger

    Inventor: Walter Hunger

    Abstract: A packing arrangement for a floating piston dividing a cylinder into first and second chambers comprising a circumferential groove formed in the sliding surface of the floating piston; a circumferential elevation dividing the bottom of the groove into first and second spaces situated on either side of the elevation; backing material placed in the groove; a sealing ring radially situated upon the backing material; first and second extensions on the backing material projecting into the first and second spaces, respectively; each extension having first and second lips forming an annular space between the bottom of the groove and the internal surface of the backing material; the first lip of each extension abutting a lateral wall of the groove and the second lip of each extension abutting a lateral surface of the elevation; a first pressure channel connecting the first chamber with the annular space formed by the first extension; and a second pressure channel connecting the second chamber with the annular space formed by the second extension.

    Abstract translation: 一种用于将气缸分成第一和第二室的浮动活塞的包装装置,包括形成在浮动活塞的滑动表面中的周向槽; 将槽的底部分隔成位于海拔两侧的第一和第二空间的圆周高度; 放置在凹槽中的背衬材料; 径向位于背衬材料上的密封环; 在背衬材料上分别突出到第一和第二空间中的第一和第二延伸部分; 每个延伸部具有第一和第二唇缘,在所述凹槽的底部和所述背衬材料的内表面之间形成环形空间; 每个延伸部的第一唇缘邻接槽的侧壁,并且每个延伸部的第二唇缘邻接高度的侧表面; 第一压力通道,其将所述第一室与由所述第一延伸部形成的所述环形空间连接; 以及第二压力通道,其将所述第二室与由所述第二延伸部形成的所述环形空间连接。

    Mechanical accumulator
    117.
    发明授权
    Mechanical accumulator 失效
    机械蓄能器

    公开(公告)号:US4046167A

    公开(公告)日:1977-09-06

    申请号:US655724

    申请日:1976-02-06

    Abstract: A mechanical accumulator for holding and supplying a volume of hydraulic fluid under pressure comprising a variable volume fluid pressure chamber including a piston and a cylinder member, a plurality of coil springs acting on one of said members for biasing the same towards the other of said members to minimize the volume of said chamber and pressurize the fluid therein, a fluid conduit for directing pressurized fluid into and out of said chamber and switch means externally of said chamber and actuated by one of said members in response to the volume changes of said chamber for controlling the operation of a fluid device using fluid from the chamber.

    Abstract translation: 一种用于在压力下保持和供应一定体积的液压流体的机械蓄能器,包括包括活塞和气缸构件的可变体积流体压力室,多个螺旋弹簧作用在所述构件中的一个上,用于朝向所述构件中的另一个施力 以使所述腔室的体积最小化并对其中的流体加压;流体导管,用于将加压流体引入和流出所述腔室,并且在所述腔室的外部切换装置,并响应于所述腔室的体积变化而被所述腔室中的一个致动, 使用来自腔室的流体来控制流体装置的操作。

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