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公开(公告)号:US06283007B1
公开(公告)日:2001-09-04
申请号:US09252295
申请日:1999-02-18
申请人: Dirk Heintzen , Detlef Axmacher
发明人: Dirk Heintzen , Detlef Axmacher
IPC分类号: F01B720
CPC分类号: F15B11/123 , F15B11/13 , F16H61/30
摘要: A cylinder and piston unit, which can be utilized to select the gears of and/or to shift a change-speed transmission in the power train of a motor vehicle, has a housing provided with two internal chambers and internal stops and receiving a reciprocable assembly of three pistons including two interconnected pistons each adjacent a different one of the two chambers and a hollow cylindrical piston which surrounds one of the two interconnected pistons. The chambers can receive a pressurized hydraulic or pneumatic fluid jointly or independently of each other to thus effect movements of the interconnected pistons (with and/or relative to the holow piston) against selected stops and to thus select the positions of the interconnected pistons. Such interconnected pistons can be utilized to select the ratio of the change-speed transmission. The chambers can confine springs which assist or oppose the action of fluid upon the surfaces of the interconnected pistons.
摘要翻译: 可以用于选择机动车辆的动力传动系中的变速传动装置的齿轮和/或移动变速传动装置的气缸和活塞单元具有设置有两个内部腔室和内部止挡件的壳体,并且容纳可往复运动的组件 三个活塞包括两个互相连接的活塞,每个相邻的两个腔室中的不同的一个活塞和围绕两个相互连接的活塞之一的中空圆柱形活塞。 这些室可以联合地或彼此独立地接收加压的液压或气动流体,从而使互连活塞(与和/或相对于中空活塞相对)相对于选定的止挡件的运动并因此选择互连的活塞的位置。 这种相互连接的活塞可用于选择变速传动比。 这些腔室可以限制弹簧,这些弹簧帮助或反对流体在相互连接的活塞表面上的作用。
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公开(公告)号:US6019026A
公开(公告)日:2000-02-01
申请号:US94798
申请日:1998-06-15
CPC分类号: F15B15/24 , B62D7/148 , F15B11/123 , F15B15/1466
摘要: A self-centering motor (16) includes a piston (130) which is disposed in a housing (112) and is movable in opposite directions from a centered condition. A pair of centering members (160 and 162) are disposed in the housing (112) to effect movement between the piston (130) and the housing toward the centered condition upon the occurrence of a predetermined condition, such as failure of a pump (44) to supply fluid under pressure. The members (160 and 162) which effect movement of the piston (130) to the centered condition are normally disposed in an overlapping relationship which enables the motor (16) to have a compact construction. In one embodiment of the invention, the members (160 and 162) which effect movement between the piston (130) and the housing (112) toward the centered condition include an inner centering member (162) and a cylindrical outer centering member (160) which extends around the inner centering member.
摘要翻译: 自定心电动机(16)包括活塞(130),其设置在壳体(112)中并且可以从居中的状态沿相反方向运动。 一对定心构件(160和162)设置在壳体(112)中,以在发生预定条件(例如泵(44)的故障)时在活塞(130)和壳体之间朝向中心状态移动 )以在压力下供应流体。 将活塞(130)运动到中心状态的构件(160,162)通常以重叠的关系设置,使马达(16)具有紧凑的结构。 在本发明的一个实施例中,实现活塞(130)和壳体(112)之间朝向中心状态的运动的构件(160和162)包括内定心构件(162)和圆柱形外定中心构件(160) 其围绕内定心构件延伸。
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公开(公告)号:US5992460A
公开(公告)日:1999-11-30
申请号:US195683
申请日:1998-11-19
申请人: Takashi Akimoto
发明人: Takashi Akimoto
IPC分类号: F16K31/42 , F15B11/12 , F15B13/04 , F15B13/043
CPC分类号: F15B13/0402 , F15B11/123 , Y10T137/86614 , Y10T137/8663
摘要: A three-position switching valve has a spool positioned in a valve hole that is moved relative to two drive chambers positioned on either end of the valve hole. Solenoid-controlled pilot valves are provided to control supplying and ejecting a pilot fluid to and from the two respective drive chambers. This spool is held at a neutral position by the provision of two piston chambers being formed adjacent to each of the drive chambers and constantly receiving pilot fluid through a channel, the piston chambers each having a smaller diameter than that of the drive chambers. Each piston chamber accommodates a piston which may slidably move so as to be urged by pilot fluid toward the spool and a linking member interposed between each of the pistons and the spool. A return spring is interposed between each of the pistons and each linking member as part of the structure holding the spools at the neutral position.
摘要翻译: 三位置切换阀具有位于阀孔中的阀芯,其相对于位于阀孔的任一端的两个驱动室移动。 提供电磁控制的先导阀以控制向两个驱动室提供和喷出先导流体。 通过设置与每个驱动室相邻形成的两个活塞室并且通过通道不断地接收先导流体而将该卷轴保持在中立位置,活塞室的直径小于驱动室的直径。 每个活塞室容纳活塞,该活塞可以滑动地移动,以被先导流体推向卷轴,以及插入每个活塞和卷轴之间的连接件。 在每个活塞和每个连接构件之间插入复位弹簧,作为将线轴保持在中立位置的结构的一部分。
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公开(公告)号:US5832808A
公开(公告)日:1998-11-10
申请号:US776675
申请日:1997-02-04
申请人: Naoki Ishizaki , Toshiro Takano
发明人: Naoki Ishizaki , Toshiro Takano
IPC分类号: E02F9/22 , F15B11/024 , F15B11/12 , F15B13/02 , F15B11/08
CPC分类号: F15B13/021 , F15B11/024 , F15B11/123 , F15B2211/30525 , F15B2211/3133 , F15B2211/35 , Y10T137/86606 , Y10T137/8663
摘要: A directional control valve unit includes a first actuator port connected to a raising side chamber of a working machine cylinder. In addition, a second actuator port is connected to a lowering side chamber of the working machine cylinder. A regeneration passage makes the second actuator port communicate with a regeneration port through a check valve. A main spool is adapted to supply a pressure oil to the second actuator port and to make the first actuator port communicate with a tank port and the regeneration port by moving the main spool in one direction. The directional control valve unit also includes a switching device for switching the maximum moving distance of the main spool in the one direction in a plurality of stages.
摘要翻译: PCT No.PCT / JP95 / 01547 Sec。 371日期1997年2月4日 102(e)日期1997年2月4日PCT提交1995年8月3日PCT公布。 公开号WO96 / 04481 日期1996年2月15日方向控制阀单元包括连接到工作机气缸的升高侧室的第一致动器端口。 此外,第二致动器端口连接到作业机筒的下降侧室。 再生通道使得第二致动器端口通过止回阀与再生端口连通。 主阀芯适于向第二致动器端口提供压力油,并且通过沿一个方向移动主阀芯来使第一致动器端口与罐口和再生端口连通。 方向控制阀单元还包括用于在多个级中沿一个方向切换主阀芯的最大移动距离的开关装置。
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公开(公告)号:US4564169A
公开(公告)日:1986-01-14
申请号:US653269
申请日:1984-09-19
申请人: Sven Nordlund
发明人: Sven Nordlund
IPC分类号: F15B15/06 , F15B11/12 , F15B15/08 , F16K31/163
CPC分类号: F15B15/065 , F15B11/123
摘要: In a pressurized operated actuator (1) for stepwise regulation of valves between at least three distinct positions, one end-wall has been removed and replaced with an auxiliary actuator (19) having a piston (21) whose piston area exceeds the sum of the areas of the conventional pistons (5 and 6) of the firstmentioned actuator. The piston (21) of the auxiliary actuator has a piston rod (22) which extends into the cylinder chamber (2a) of the actuator. Its stroke equals half the length of the stroke of the rods (7 and 8) of two conventional pistons (5 and 6). The firstmentioned piston rod (22) limits the movement of the pistons (5 and 6) of the actuator in a direction away from one another. In this way, there can be obtained a distinct intermediate position for the rotary settings of the actuator.
摘要翻译: PCT No.PCT / SE84 / 00048 Sec。 371日期1984年9月19日 102(e)1984年9月19日PCT PCT提交1984年2月10日PCT公布。 WO94 / 03128 PCT出版物 日本1984年8月16日。在用于在至少三个不同位置之间逐步调节阀的加压操作致动器(1)中,一个端壁已被移除并且被替换为具有活塞(21)的辅助致动器(19) 活塞面积超过第一个致动器的常规活塞(5和6)的面积的总和。 辅助致动器的活塞(21)具有延伸到致动器的气缸室(2a)中的活塞杆(22)。 其行程等于两个常规活塞(5和6)的杆(7和8)的行程长度的一半。 第一个活塞杆(22)限制致动器的活塞(5和6)在远离彼此的方向上的移动。 以这种方式,可以获得用于致动器的旋转设置的不同的中间位置。
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公开(公告)号:US4406648A
公开(公告)日:1983-09-27
申请号:US300293
申请日:1981-09-08
申请人: Elio Cavagna , Antonio Colombo
发明人: Elio Cavagna , Antonio Colombo
CPC分类号: F15B11/123 , B31F1/10 , Y10T83/0348 , Y10T83/7855
摘要: Improved creasing machine, particularly for use in industry of cardboard articles and packages, comprising a sliding creasing roller and a fixed or stationary counter-roller, wherein the creasing roller is driven by the pistons of pneumatic, hydraulic or fluid-dynamic cylinders having the same axis of translation but different stroke.
摘要翻译: 改进的压痕机,特别是用于纸板制品和包装的工业中,包括滑动压痕辊和固定或固定的反向辊,其中压痕辊由具有相同辊的气动,液压或流体动力气缸的活塞驱动 翻译轴,但不同笔画。
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公开(公告)号:US3978884A
公开(公告)日:1976-09-07
申请号:US605294
申请日:1975-08-18
申请人: Nils Eskil Sundstrom
发明人: Nils Eskil Sundstrom
CPC分类号: F15B11/123 , Y10T137/7782
摘要: A position regulator is provided which is effective to control, via a control unit, a pressure medium circuit to operate a different working pressures. The regulator comprises two or more pistons dividing a common cylinder into a number of pressure chambers, the pistons being arranged for movement relative to one another. The invention provides stop means for each separate piston, each stop means being individually adjustable to produce different lengths of stroke for the respective pistons whereby the output piston rod from the cylinder is caused to adopt a number of axially determined limit positions depending upon the control pressure applied to respective pressure chambers.
摘要翻译: 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操作不同的工作压力。 调节器包括将公共气缸分成多个压力室的两个或更多个活塞,活塞被布置成相对于彼此移动。 本发明为每个单独的活塞提供停止装置,每个止动装置可单独地调整,以便为相应的活塞产生不同的行程长度,从而使来自气缸的输出活塞杆根据控制压力采用若干轴向确定的极限位置 施加到相应的压力室。
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公开(公告)号:US3824903A
公开(公告)日:1974-07-23
申请号:US30846272
申请日:1972-11-21
发明人: HAHN J
CPC分类号: B60H1/00442 , F15B11/123
摘要: A two-stage vacuum control drive is disclosed in which a vacuum control drive, consisting of a roll membrane movably mounted to counteract the action of a spring under the influence of a vacuum, is mounted displaceably in the housing of a second similar vacuum control drive. The two drives are controlled independently and have a cumulative effect on the total travel of the device.
摘要翻译: 公开了一种两级真空控制驱动装置,其中真空控制驱动装置由可移动地安装以在真空影响下抵抗弹簧作用的辊膜组成的真空控制驱动装置可移动地安装在第二类似的真空控制驱动装置 。 两个驱动器是独立控制的,对设备的总行程有累积的影响。
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公开(公告)号:US3469503A
公开(公告)日:1969-09-30
申请号:US3469503D
申请日:1967-10-16
申请人: CORNING GLASS WORKS
IPC分类号: F15B11/12 , F16K31/122 , F01B7/16 , F01B7/10
CPC分类号: F16K31/1225 , F15B11/123
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公开(公告)号:US3152520A
公开(公告)日:1964-10-13
申请号:US10086061
申请日:1961-04-05
申请人: GEN DYNAMICS CORP
发明人: HEESE WILLIAM E
CPC分类号: F15B11/123 , G05D23/12 , Y10S92/04
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