公开(公告)号：US20230392617A1

公开(公告)日：2023-12-07

申请号：US18249412

申请日：2020-10-19

申请人： Josef BUETER ,  BÜMACH ENGINEERING INTERNATIONAL B.V.

发明人： Josef Bueter

IPC分类号： F15B15/22 ,  F15B15/14

CPC分类号： F15B15/224 ,  F15B15/1452

摘要： A working cylinder which has end-position damping. A piston ring passes over an axially offset pressure medium connection and encloses a pressure medium damping volume. The piston ring includes a ring joint which has a base section and a projection section. The piston ring is of sealing construction. The pressure medium flows out of the pressure medium damping volume via an axial transfer channel, which can be defined by an axial cylinder-tube groove or an axial piston-ring groove. Also, there is a damping piston ring, which is of sealing construction and which has an axial piston-ring groove.

公开(公告)号：US10060528B2

公开(公告)日：2018-08-28

申请号：US14970604

申请日：2015-12-16

申请人： ZF Friedrichshafen AG

发明人： Rainer Novak

IPC分类号： F16H61/30 ,  F15B15/14 ,  F15B15/20 ,  F16H63/30 ,  F15B11/036 ,  F15B15/22

CPC分类号： F16H61/30 ,  B60Y2400/421 ,  F15B11/036 ,  F15B15/1447 ,  F15B15/149 ,  F15B15/204 ,  F15B15/224 ,  F16H63/3023 ,  F16H2063/303

摘要： A hydraulic actuating device is provided for a positive-locking shifting element of a transmission with a cylinder, in which a piston is arranged in a manner displaceable between a first end position and a second end position. The piston is a stepped piston and, with the cylinder, bounds an additional pressure chamber, which is connected to a first pressure chamber and/or a second pressure chamber through at least one hydraulic line. The volume of the additional pressure chamber decreases during an actuating movement of the piston in the direction of the first end position and increases during an actuating movement of the piston in the direction of the second end position. The degree of locking of the connection between the additional pressure chamber and the first pressure chamber and/or the second pressure chamber increases through the cylinder from a defined actuating path of the piston prior to reaching the first end position up to the first end position.

公开(公告)号：US20160169381A1

公开(公告)日：2016-06-16

申请号：US14970604

申请日：2015-12-16

申请人： ZF Friedrichshafen AG

发明人： Rainer Novak

IPC分类号： F16H61/30 ,  F15B15/14

CPC分类号： F16H61/30 ,  B60Y2400/421 ,  F15B11/036 ,  F15B15/1447 ,  F15B15/149 ,  F15B15/204 ,  F15B15/224 ,  F16H63/3023 ,  F16H2063/303

摘要： A hydraulic actuating device is provided for a positive-locking shifting element of a transmission with a cylinder, in which a piston is arranged in a manner displaceable between a first end position and a second end position. The piston is a stepped piston and, with the cylinder, bounds an additional pressure chamber, which is connected to a first pressure chamber and/or a second pressure chamber through at least one hydraulic line. The volume of the additional pressure chamber decreases during an actuating movement of the piston in the direction of the first end position and increases during an actuating movement of the piston in the direction of the second end position. The degree of locking of the connection between the additional pressure chamber and the first pressure chamber and/or the second pressure chamber increases through the cylinder from a defined actuating path of the piston prior to reaching the first end position up to the first end position.

摘要翻译： 提供了一种用于具有气缸的变速器的正锁定移动元件的液压致动装置，其中活塞以在第一端部位置和第二端部位置之间移位的方式布置。 活塞是阶梯式活塞，并且与气缸一起限定另外的压力室，其通过至少一个液压管线连接到第一压力室和/或第二压力室。 在活塞沿着第一端部位置的方向的致动运动期间，附加压力室的体积减小，并且在活塞在第二端部位置的方向的致动运动期间增加。 附加压力室和第一压力室和/或第二压力室之间的连接的锁定程度在到达第一端部位置直到第一端部位置之前通过活塞的限定的致动路径从气缸增加。

公开(公告)号：US08567752B2

公开(公告)日：2013-10-29

申请号：US12552814

申请日：2009-09-02

申请人： Gerard ter Horst ,  Erwin van Dorp

发明人： Gerard ter Horst ,  Erwin van Dorp

IPC分类号： F16K31/12

CPC分类号： F15B15/065 ,  F15B15/224 ,  F15B15/226 ,  F15B15/227 ,  F15B15/228 ,  F16K31/1635

摘要： Rotary valve actuators having partial stroke damping apparatus are described herein. An example rotary valve actuator described herein includes a housing containing a first piston and a second piston opposite the first piston, where the pistons move in opposite directions to rotate a shaft of the rotary valve actuator. A damper is operatively coupled to at least one of the first piston or the second piston to slow the movement of the piston for only a portion of a stroke of the rotary valve actuator.

摘要翻译： 这里描述了具有局部行程阻尼装置的旋转阀致动器。 本文所述的示例性旋转阀致动器包括容纳第一活塞和与第一活塞相对的第二活塞的壳体，其中活塞沿相反方向移动以旋转旋转阀致动器的轴。 阻尼器可操作地联接到第一活塞或第二活塞中的至少一个，以减慢活塞仅仅旋转阀致动器的一部分行程的运动。

公开(公告)号：US20110049400A1

公开(公告)日：2011-03-03

申请号：US12552814

申请日：2009-09-02

申请人： Gerard ter Horst ,  Erwin van Dorp

发明人： Gerard ter Horst ,  Erwin van Dorp

IPC分类号： F16K31/12

CPC分类号： F15B15/065 ,  F15B15/224 ,  F15B15/226 ,  F15B15/227 ,  F15B15/228 ,  F16K31/1635

摘要： Rotary valve actuators having partial stroke damping apparatus are described herein. An example rotary valve actuator described herein includes a housing containing a first piston and a second piston opposite the first piston, where the pistons move in opposite directions to rotate a shaft of the rotary valve actuator. A damper is operatively coupled to at least one of the first piston or the second piston to slow the movement of the piston for only a portion of a stroke of the rotary valve actuator.

摘要翻译： 这里描述了具有局部行程阻尼装置的旋转阀致动器。 本文所述的示例性旋转阀致动器包括容纳第一活塞和与第一活塞相对的第二活塞的壳体，其中活塞沿相反方向移动以旋转旋转阀致动器的轴。 阻尼器可操作地联接到第一活塞或第二活塞中的至少一个，以减慢活塞仅仅旋转阀致动器的一部分行程的运动。

公开(公告)号：US06978609B2

公开(公告)日：2005-12-27

申请号：US10736806

申请日：2003-12-16

申请人： Svan Busch

发明人： Svan Busch

IPC分类号： E05F3/10 ,  E05F3/22 ,  E05F15/04 ,  F15B1/02 ,  F15B13/01 ,  F15B15/08 ,  F15B15/22 ,  F16D31/02 ,  G05D7/00

CPC分类号： F15B15/065 ,  E05F3/102 ,  E05F3/223 ,  E05F15/53 ,  E05Y2800/00 ,  E05Y2900/132 ,  F15B1/025 ,  F15B13/01 ,  F15B15/224

摘要： The invention pertains to an electrohydraulic servo door drive for operating a door, a window, or the like, with a hold-open function, where a valve is installed in the hydraulic circuit to implement the hold-open function. To create an electrohydraulic servo door drive which requires less space and can be produced at lower cost, it is provided according to the invention that the valve is designed as a hydraulically controlled hold-open valve.

摘要翻译： 本发明涉及一种用于操作具有保持打开功能的门，窗等的电动液压伺服门驱动器，其中阀安装在液压回路中以实现保持打开功能。 为了创建一种电动液压伺服门驱动器，其需要较少的空间并且可以以较低的成本生产，根据本发明，提供了阀被设计为液压控制的保持开启阀。

公开(公告)号：US20050126386A1

公开(公告)日：2005-06-16

申请号：US10733021

申请日：2003-12-11

申请人： Kun-Tzu Lin ,  Shih-Liang Cheng ,  Cheng-Chiang Chuang ,  Chung-Yu Tsai

发明人： Kun-Tzu Lin ,  Shih-Liang Cheng ,  Cheng-Chiang Chuang ,  Chung-Yu Tsai

IPC分类号： F15B15/22

CPC分类号： F15B15/224

摘要： The piston of a fluid motor divides the cylinder into two variable volumes into which and from which fluid may be selectively introduced and exhausted via ports through the cylinder to relatively move the piston and the cylinder. The piston is modified to define two fixed-volume chambers that respectively communicate with the variable volumes via restrictive orifices. In selected relative piston-cylinder positions, the chambers communicate with the ports to restrict fluid flow into and out of the variable volumes and to decrease the velocity of relative piston-cylinder movement. In other relative piston-cylinder positions, the chambers do not communicate with the ports and fluid enters and leaves the variable volumes directly through the ports to relatively move the piston-cylinder at a higher velocity.

摘要翻译： 流体马达的活塞将气缸分成两个可变容积，流体可从该容积中选择性地引入和排出，通过气缸经由端口排出，以使活塞和气缸相对移动。 活塞被修改为限定两个固定容积的室，其分别通过限制孔与可变容积连通。 在选定的相对活塞 - 气缸位置，腔室与端口连通，以限制流体流入和流出可变体积，并降低相对活塞 - 气缸运动的速度。 在其他相对的活塞 - 气缸位置，室不与端口连通，并且流体进入并且通过端口直接离开可变容积以相对地以更高的速度移动活塞 - 气缸。

公开(公告)号：US06497172B2

公开(公告)日：2002-12-24

申请号：US09796593

申请日：2001-03-02

申请人： Akihiro Hirano ,  Kenji Koiwa ,  Kiyoshi Takeuchi

发明人： Akihiro Hirano ,  Kenji Koiwa ,  Kiyoshi Takeuchi

IPC分类号： F15B1522

CPC分类号： F15B15/065 ,  F01C9/002 ,  F15B15/12 ,  F15B15/224

摘要： A rotary actuator has a cushion mechanism for stopping a vane at a rotational terminal end position in a cushioning manner. The cushion mechanism has first and second openings. The first opening discharges an exhaust air pressed out from a cylinder hole by a rotating vane to an external portion without limiting a flow amount. The second opening discharges the exhaust air to the external portion in a state of limiting a flow amount. A flow amount adjusting mechanism connects to the second opening. The first opening is provided at a position sealed by the vane before the vane of a hole surface in the cylinder hole reaches a rotational terminal end position. The second opening is provided at a position which is not sealed by the vane after the vane reaches the rotational terminal end position.

摘要翻译： 旋转致动器具有用于以缓冲方式在旋转终端位置处停止叶片的缓冲机构。 缓冲机构具有第一和第二开口。 第一开口将从旋转叶片从缸孔向外压出的废气排出到外部，而不限制流量。 第二开口在限制流量的状态下将排气排放到外部。 流量调节机构连接到第二开口。 第一开口设置在由气缸孔中的孔面的叶片到达旋转终端位置之前由叶片密封的位置。 第二开口设置在叶片到达旋转终端位置之后未被叶片密封的位置。

公开(公告)号：US06186043B1

公开(公告)日：2001-02-13

申请号：US09286359

申请日：1999-04-05

申请人： Robert Edwin Callies

发明人： Robert Edwin Callies

IPC分类号： F15B1522

CPC分类号： F15B15/224

摘要： A cushion hydraulic cylinder is provided with a series of longitudinally separated metering orifices in the wall of the cylinder through which exhausted fluid is expelled. As the piston extends towards these metering orifices a seal sequentially cover and uncovers the metering orifices further restricting the flow of exhausted fluid. In addition the piston is provided with radial bores having one or more longitudinal passages which are in fluid communication with either the piston side of the cylinder or the rod side of the cylinder. The first longitudinal passage is provided with a passage orifice through which exhausted fluid can flow after a circumferential piston seal reopens a previously blocked metering orifice. The second longitudinal passage maybe provided with a check valve which prevents the flow of fluid in one direction.

摘要翻译： 缓冲液压缸在气缸的壁中设置有一系列纵向分离的计量孔，排出的流体被排出。 当活塞向这些计量孔延伸时，密封件顺序地覆盖和揭开计量孔，进一步限制排出的流体的流动。 此外，活塞设置有具有一个或多个纵向通道的径向孔，该纵向通道与气缸的活塞侧或气缸的杆侧流体连通。 第一纵向通道设置有通道孔，在圆周活塞密封件重新打开先前阻塞的计量孔口之后，排出的流体可以通过该通道孔流动。 第二纵向通道可以设置有防止流体沿一个方向流动的止回阀。

公开(公告)号：US4425836A

公开(公告)日：1984-01-17

申请号：US236145

申请日：1981-02-20

申请人： John W. Pickrell

发明人： John W. Pickrell

IPC分类号： F15B15/22

CPC分类号： F15B15/224

摘要： After the piston, in a piston/cylinder type fluid pressure motor, has moved past the fluid discharge port during termination of the stroke, fluid is forced to flow through a circuitous conduit formed into the outer surface of the piston. The rate of deceleration of the piston is proportional to the length, cross-sectional area, and surface finish of the channel forming the conduit.

摘要翻译： 在活塞之后，在活塞/气缸型流体压力电动机在行程终止期间已经移动通过流体排放口，流体被迫流过形成到活塞的外表面的迂回导管。 活塞的减速度与形成导管的通道的长度，横截面积和表面光洁度成比例。