公开(公告)号：US20010018859A1

公开(公告)日：2001-09-06

申请号：US09785218

申请日：2001-02-20

Applicant: SMC Corporation

Inventor： Kenji Koiwa ,  Kaichiro Mitsui

IPC: F15B015/22 ,  F01B009/00

CPC classification number: F15B15/223 ,  F15B15/063

Abstract: An output shaft is connected to a piston rod of a fluid pressure-driven linear cylinder through a converting mechanism for converting linear thrust of the piston rod into rotational torque and converting operation of the converting mechanism is controlled by operation setting means having a cam groove and a cam follower to thereby causing the output shaft to carry out linear motion and swinging rotation. A driving speed of the piston can be changed by adjusting fluid pressure acting on the piston in a linear motion area and a swinging area of the output shaft respectively.

Abstract translation: 输出轴通过用于将活塞杆的线性推力转换为转矩的转换机构连接到流体压力驱动线性气缸的活塞杆，转换机构的转换操作由具有凸轮槽的操作设定装置控制， 凸轮从动件，从而使输出轴进行直线运动和摆动旋转。 可以通过分别在直线运动区域和输出轴的摆动区域中调节作用在活塞上的流体压力来改变活塞的驱动速度。

公开(公告)号：US20020073837A1

公开(公告)日：2002-06-20

申请号：US09736618

申请日：2000-12-14

Inventor： Leopold J. Niessen

IPC: F15B015/22

CPC classification number: F15B15/065 ,  F15B15/24 ,  F16K1/221 ,  F16K1/523

Abstract: A dual end stop is provided for setting precise open and closed positions for the valve to which the pneumatic actuator is attached. In a preferred embodiment, a stop assembly housing contains two stop adjustment bolts as well as a cam that defines first and second stop surfaces. The stop assembly housing is preferably mounted to the actuator housing outside of the pressurized zone contained by the actuator housing. The stop bolts and associated threaded apertures are designed for minimum overhang of the stop bolts to provide more support. The stop assembly housing not only preferably houses the stop assembly components but also preferably serves as an adaptor plate for the various valves to which the actuator may be mounted. The stop bolts preferably have a convex head to provide a defined point contact rather than a random point contact as may be produced with flat heads. The cam is preferably mounted between two directly adjacent bearings, at least one of which is preferably located in the stop assembly housing. The stop assembly housing is milled to fit precisely within a recess in the actuator housing for improved support and more accurate alignment as well as eliminating the need for machining more than two bolt holes for attaching the stop assembly housing to the actuator housing.

公开(公告)号：US20010035090A1

公开(公告)日：2001-11-01

申请号：US09813013

申请日：2001-03-21

Applicant: SMC CORPORATION

Inventor： Toshio Sato ,  Yoshiteru Ueno

IPC: F15B015/22

CPC classification number: F15B15/1404 ,  F15B15/224

Abstract: In a linear actuator in which a slide table on a pedestal is caused to reciprocate linearly by two air cylinder mechanisms mounted in the pedestal, exhaust holes are provided to positions adjacent to ports, flow rate restricting mechanisms for restricting a flow rate of exhaust are provided between the exhaust holes and the ports, and pieces of cushion packing for being positioned over one of through holes of the ports on an exhaust side immediately before the piston reaches a stroke end is provided to an outer peripheral face of the piston to cause compressed air in pressure chambers to be discharged from the exhaust hole through the flow rate restricting mechanism.

Abstract translation: 在使基座上的滑台被安装在基座上的两个气缸机构线性地往复运动的线性致动器中，在与端口相邻的位置设置排气孔，设置限制排气流量的流量限制机构 在活塞到达行程端之前的排气侧的端口的一个通孔中的一个上设置有用于排出孔和端口之间的缓冲垫片，并且在活塞的外周面上设置有压缩空气 在压力室中，通过流量限制机构从排气孔排出。

公开(公告)号：US20020184997A1

公开(公告)日：2002-12-12

申请号：US09878086

申请日：2001-06-08

Applicant: FESTO Corporation

Inventor： Michael Zona

IPC: F15B015/22

CPC classification number: F15B15/223 ,  F15B15/226

Abstract: A pneumatic cylinder having a cylinder tube with at least one open end coupled to an end cap to close the open end. The pneumatic cylinder includes a piston reciprocally movable in the cylinder and the piston has a first seal to create a substantially fluid-tight seal with the internal surface of the cylinder tube. The piston has a piston spear at the end portion thereof for cooperating with a piston spear receiving space in the end cap. A second seal is provided in the piston spear receiving space for creating a substantially fluid-tight seal between the piston spear and the piston spear receiving space thereby creating a volume chamber between the first and second seals. The volume chamber provides a compressible volume of volume which acts as an air cushion at the end of the piston stroke.

Abstract translation: 气缸，具有气缸套筒，其具有与端盖相连的至少一个开口端以封闭开口端。 气缸包括可在气缸中往复运动的活塞，并且活塞具有第一密封件，以与气缸管的内表面形成基本上流体密封的密封。 活塞在其端部具有活塞矛，用于与端盖中的活塞矛接收空间配合。 第二密封件设置在活塞矛接收空间中，用于在活塞矛和活塞矛接收空间之间形成基本上流体密封的密封，从而在第一密封件和第二密封件之间形成容积室。 容积室提供可压缩体积的体积，其在活塞冲程末端充当气垫。

公开(公告)号：US20020043152A1

公开(公告)日：2002-04-18

申请号：US09977385

申请日：2001-10-16

Inventor： Luciano Migliori

IPC: F15B015/22

CPC classification number: F15B15/223

Abstract: The pneumatic cylinder comprises a tubular body defining a piston chamber for a piston member, closed by front and rear heads; each head is provided with an inlet-outlet port for pressurised air, which opens out towards an annular slot coaxially arranged and communicating with the piston chamber. The piston is provided with a rod which extends through a guide bush in the front head. Pneumatic cushioning means are provided to control the movement of the piston at the ends of its stroke; the cushioning means of the front head comprise a narrow passage for venting the air, and a sleeve protruding from the piston, to penetrate into an annular slot disposed coaxially around the guide bush for the piston rod.

Abstract translation: 气动缸包括管状体，其限定用于活塞构件的活塞室，由前后头封闭; 每个头部设置有用于加压空气的入口 - 出口，其朝与同轴布置并与活塞室连通的环形槽开放。 活塞设置有延伸穿过前头中的导套的杆。 提供气动缓冲装置以控制活塞在其行程末端的运动; 前头的缓冲装置包括用于排出空气的窄通道和从活塞突出的套筒，以穿透到围绕用于活塞杆的导套同轴设置的环形槽中。

公开(公告)号：US20040035288A1

公开(公告)日：2004-02-26

申请号：US10228000

申请日：2002-08-26

Applicant: CROSS MANUFACTURING, INC.

Inventor： Steven C. Hawthorne

IPC: F15B015/22

CPC classification number: F15B15/224

Abstract: A cushioned hydraulic cylinder which includes a check valve in the cushioning path to allow fast opposite direction movement. The check valve is in the form of a cast iron piston ring located within a groove in the piston which blocks unrestricted flow across the piston when the piston ring is seated against one side face of the groove and opens unrestricted flow when the piston ring abuts the opposite side face of the groove when the piston is moving in the opposite direction.

Abstract translation: 缓冲液压缸，其在缓冲路径中包括止回阀，以允许快速相反的方向运动。 止回阀是位于活塞槽内的铸铁活塞环的形式，当活塞环抵靠在槽的一个侧面上时阻止流过活塞的不受限制的流动，当活塞环抵靠在活塞环上时，打开不受限制的流动 当活塞沿相反方向移动时，槽的相对侧面。

公开(公告)号：US20030183073A1

公开(公告)日：2003-10-02

申请号：US10398500

申请日：2003-05-23

Inventor： Dietmar E Lilie

IPC: F15B015/22

CPC classification number: F04B49/24 ,  F04B35/045 ,  F04B2201/0201 ,  F04B2201/0206

Abstract: A piston stroke limiting device for a reciprocating compressor of the type including a piston (2) reciprocating inside a cylinder (3), which is closed by a cylinder head (4) and defines, between the latter and the top of the piston (2), a compression chamber (5), said device comprising: a driving element (40) provided in one of the parts defined by the piston (2) and the cylinder head (4) and projecting to the inside of the compression chamber (5), in order to touch the other of said parts when the piston (2) surpasses a predetermined nominal position at the end of the compression stroke; and a relief valve (60), which is selectively displaced from a closed condition, in which it is seated on a respective valve seat (51) defined in a relief passage (50) communicating the compression chamber (5) with a region of the compressor subject to a substantially lower operational pressure, to an open condition, by action of the driving element (40), when the piston (2) surpasses said predetermined nominal position at the end of the compression stroke.

Abstract translation: 一种用于往复式压缩机的活塞冲程限制装置，其包括在气缸（3）内往复运动的活塞（2），所述活塞（2）由气缸盖（4）封闭并且在活塞（2）的顶部和活塞 ），压缩室（5），所述装置包括：驱动元件（40），设置在由活塞（2）和气缸盖（4）限定的部分中的一个部分中并且突出到压缩室（5）的内部 ），当活塞（2）在压缩冲程结束时超过预定的标称位置时，为了接触所述部件中的另一个; 以及安全阀（60），其被选择性地从关闭状态移位，其中它位于限定在与压缩室（5）连通的释放通道（50）中的相应阀座（51）上， 当压缩冲程结束时活塞（2）超过所述预定的标称位置时，通过驱动元件（40）的作用，经受基本上较低的操作压力的压缩机处于打开状态。

公开(公告)号：US20030037668A1

公开(公告)日：2003-02-27

申请号：US09934197

申请日：2001-08-21

Inventor： Alan Nastasi

IPC: F15B015/22

CPC classification number: F15B15/1447 ,  F15B15/149 ,  F15B15/24

Abstract: An under body hydraulic cylinder is disclosed having a poppet relief valve disposed through a piston. As the piston is moved by oil pressure towards the stuffing box, the poppet relief valve engages a stroke stop mounted on a stuffing box surrounding the piston rod. As the poppet engages the stroke stop, the poppet is opened to allow oil to bypass the piston. The cylinder stroke is determined by the length of the stroke stop mounted on the stuffing box.

Abstract translation: 公开了一种底体液压缸，其具有通过活塞设置的提升阀安全阀。 当活塞通过油压向填料函移动时，提升阀安全阀与安装在活塞杆周围的填料函上的冲程挡块接合。 当提升阀接合行程停止时，提升阀打开以允许油绕过活塞。 气缸行程由安装在填料函上的行程挡块的长度决定。

公开(公告)号：US20040094029A1

公开(公告)日：2004-05-20

申请号：US10298381

申请日：2002-11-18

Inventor： Stanley F. Miller ,  Paul Smirl ,  Flavio Tondolo

IPC: F15B015/22

CPC classification number: F15B9/09

Abstract: Disclosed is a piston positioning system for positioning a piston within a cylinder of a pneumatic circuit. The system comprises a piston position indicator for sensing an actual piston position, a controller for generating an output signal in response to the piston position signal, a pneumatic valving device for regulating the flow of pneumatic fluid and a solenoid valve configured to energize the pneumatic valving device. The pneumatic valving device comprises a four-way valve, a servo valve coupled to a stepper motor, and a two-way valve. The reversible stepper motor is incrementally rotatable over a desired angle of rotation in proportion to the magnitude of the output signal for linearly translating the servo valve such that the flow of pneumatic fluid maybe manipulated into and out of first and second ends of the cylinder to control the piston position therewithin.

Abstract translation: 公开了一种用于将活塞定位在气动回路的气缸内的活塞定位系统。 该系统包括用于感测实际活塞位置的活塞位置指示器，用于响应于活塞位置信号产生输出信号的控制器，用于调节气动流体流动的气动阀装置和构造成对气动阀施力的电磁阀 设备。 气动阀装置包括四通阀，连接到步进电机的伺服阀和二通阀。 可逆步进电机可以在与用于线性平移伺服阀的输出信号的大小成比例的期望的旋转角度上递增地旋转，使得气动流体的流动可以被操纵进入和离开气缸的第一和第二端以控制 其中的活塞位置。

公开(公告)号：US20020129698A1

公开(公告)日：2002-09-19

申请号：US09805752

申请日：2001-03-14

Inventor： Nicholas O. Venier ,  Nicholas Bitsakis

IPC: F15B015/22

CPC classification number: F15B15/222 ,  F41F3/10

Abstract: A piston deceleration system includes an elongated piston shaft having an intermediate stop member and a second stop member formed thereon. A piston member is slidably seated on the elongated shaft between the intermediate stop member and the second stop member. A tank member is provided having a first end surface with a first opening and a shaft aperture formed therein and a second end surface having a second opening formed therein. The piston shaft is slidably positioned into the tank member through at least the first end surface shaft aperture. A shaft shock absorbing member is positioned between the intermediate stop member and the piston member on the piston shaft, and a piston shock absorbing member is positioned between the piston member and the second end of the tank member.