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1. 发明授权

US06802242B1 Pneumatic circuit control system 有权
标题翻译：气动电路控制系统
公开(公告)号：US06802242B1
公开(公告)日：2004-10-12
申请号：US10390080
申请日：2003-03-17
申请人： Joseph Henry Steinke , Sanjay V. Sherikar
发明人： Joseph Henry Steinke , Sanjay V. Sherikar
IPC分类号： F15B1108
CPC分类号： F15B1/024 , F15B9/09 , F15B13/0426
摘要： A pneumatic control system is provided for positioning a piston within a cylinder and comprises a positioner for regulating the flow of compressed air into and out of first and second ends of the cylinder. First and second large boosters force compressed air into the respective first and second ends. First and second small boosters and first and second quick exhaust valves collectively exhaust compressed air out of the respective first and second ends. First and second small and large booster check valves interposed between the directional valve and the respective first and second small and large boosters are oriented such that the flow of compressed air through the signal lines and into the first and second small and large boosters may be blocked for increasing the sensitivity of the positioning of the piston.
摘要翻译：提供一种用于将活塞定位在气缸内的气动控制系统，并且包括用于调节压缩空气流入和流出气缸的第一和第二端的定位器。第一和第二大助推器将压缩空气压入相应的第一和第二端。第一和第二小助推器以及第一和第二快速排气门将压缩空气从相应的第一和第二端部共同排出。置于换向阀和相应的第一和第二小型和大型助力器之间的第一和第二小型和大型增压器止回阀被定向成使得通过信号线的压缩空气流入第一和第二小型和大型增压器的流动可能被阻塞以增加活塞定位的灵敏度。

2. 发明授权

US06619183B2 Electrohydraulic valve assembly 有权
公开(公告)号：US06619183B2
公开(公告)日：2003-09-16
申请号：US10004837
申请日：2001-12-07
申请人： Kazunori Yoshino
发明人： Kazunori Yoshino
IPC分类号： F15B1108
CPC分类号： F15B11/0445 , F15B11/006 , F15B11/028 , F15B11/042 , F15B13/0402 , F15B13/0433 , F15B13/0435 , F15B21/047 , F15B2211/30575 , F15B2211/327 , F15B2211/35 , F16K27/003 , Y10T137/87209
摘要： A control valve in fluid communication with an actuator may include a pressurized pilot supply and a fluid reservoir fluidly connected to a passageway defined by a valve body. A pilot operator is selectively moveable within the passageway, and a flow metering operator is moveably disposed within the passageway. A fluid make-up operator, disposed in the passageway and in fluid communication with the fluid reservoir and the actuator, directs pressurized pilot supply fluid in response to a decrease in actuator pressure coinciding with a cavitation condition within the actuator. A control chamber within the valve body contains pressurized fluid from the pilot supply and is in fluid communication with the flow metering operator. The flow metering operator fluidly connects the actuator with the fluid reservoir under the influence of the pressurized fluid within the control chamber through activation by either the pilot operator or the fluid make-up operator.

3. 发明授权

US06405633B1 Hydraulic piston-cylinder unit for agricultural machines 有权
标题翻译：农业机械液压活塞缸单元
公开(公告)号：US06405633B1
公开(公告)日：2002-06-18
申请号：US09778426
申请日：2001-02-07
申请人： Heinrich Dueckinghaus , Dirk Schlichting
发明人： Heinrich Dueckinghaus , Dirk Schlichting
IPC分类号： F15B1108
CPC分类号： A01B63/108 , B66F9/0655 , B66F9/22 , F15B11/003 , F15B11/024 , F15B11/028 , F15B2211/20538 , F15B2211/30525 , F15B2211/3111 , F15B2211/3144 , F15B2211/31576 , F15B2211/327 , F15B2211/50518 , F15B2211/50581 , F15B2211/513 , F15B2211/5153 , F15B2211/5159 , F15B2211/526 , F15B2211/528 , F15B2211/7057 , F15B2211/72
摘要： The present invention is concerned with a work machine having a telescopic arm coupled to the front thereof. This arm is used for seating various sorts of frontal attachments and is raised and lowered by means of a hydraulic piston-cylinder unit. Now in order to ensure that an installed frontal attachment always rests on the ground with a pre-selected force, use is made of a pilot controlled seat valve and an adjustable pressure regulating valve which ensure that a constant pressure is maintained in the cylinder chamber formed below the base of the piston in the piston-cylinder unit when a constant supply of oil is fed to this part of the cylinder chamber. In consequence, this means that the installed frontal attachment always rests on the ground with one and the same force independently of whether the ground is flat or uneven. The frontal attachment thus precisely copies the contour of the ground at all times.
摘要翻译：本发明涉及一种具有连接到其前部的伸缩臂的作业机器。该手臂用于安装各种正面附件，并通过液压活塞 - 气缸单元升高和降低。现在为了确保安装的前部附件总是以预先选定的力放置在地面上，使用先导控制座阀和可调压力调节阀，确保在形成的气缸室中保持恒定的压力当向气缸室的这一部分供给恒定的油时，在活塞 - 气缸单元中的活塞的底部下方。因此，这意味着安装的正面附件总是以独立于地面平坦或不均匀的同样的力而靠在地面上。正面附件因此在任何时候都精确地复制了地面的轮廓。

4. 发明授权

US06378412B1 Lifting cylinder unit for a lifting platform 有权
标题翻译：升降平台提升缸单元
公开(公告)号：US06378412B1
公开(公告)日：2002-04-30
申请号：US09689044
申请日：2000-10-12
申请人： Kurt Wittich , Karl Stach
发明人： Kurt Wittich , Karl Stach
IPC分类号： F15B1108
CPC分类号： F15B15/149 , F15B15/1433 , F15B15/1457 , F15B15/204
摘要： A lifting cylinder unit (1) has a plunger design, and includes a stationary rod tube (2) having a longitudinal axis (3), two axial end regions, and an outer surface (26). A rod head (4) is arranged in one of the axial end regions of the rod tube (2), the rod head (4) being fixedly connected to the rod tube (2) and including a connecting bore (7). A cylinder tube (14) having two axial end regions and an outer surface (22) is arranged outside the rod tube (2). The cylinder tube (14) is designed and arranged to be movable with respect to the rod tube (2) in the direction of the longitudinal axis (3) of the rod tube (2). A cylinder bottom (15) is arranged in one of the axial end regions of the cylinder tube (14), and is fixedly connected to the cylinder tube (14). A guide bush (18) having an inner surface (23) and including a surface (30) for the application of a force is fixedly connected to the outer surface (26) of the cylinder tube (2). A pressure chamber (31) is arranged inside the rod tube (2), and is designed and arranged to be supplied with a hydraulic medium via the connecting bore (7). A dynamic seal (24) is arranged in the region of the inner surface (23) of the guide bush (18), and is designed and arranged to seal the pressure chamber (31). A running surface (25) is arranged in the region of the outer surface (23) of the rod tube (2), and is designed and arranged to contact the dynamic seal (24).
摘要翻译：提升缸单元（1）具有柱塞设计，并且包括具有纵向轴线（3），两个轴向端部区域和外部表面（26）的固定杆管（2）。杆杆（4）布置在杆管（2）的一个轴向端部区域中，杆头（4）固定地连接到杆管（2）上并包括连接孔（7）。具有两个轴向端部区域和外表面（22）的缸筒（14）设置在杆管（2）的外部。气缸筒（14）被设计和布置成可以在杆管（2）的纵向轴线（3）的方向上相对于杆管（2）移动。气缸底部（15）设置在气缸筒（14）的轴向端部区域之一中，并且固定地连接到气缸筒（14）。具有内表面（23）并且包括用于施加力的表面（30）的引导衬套（18）固定地连接到气缸筒（2）的外表面（26）。压力室（31）设置在杆管（2）的内部，并被设计和布置成经由连接孔（7）供给液压介质。动力密封件（24）布置在导套（18）的内表面（23）的区域中，并被设计和布置以密封压力室（31）。运行表面（25）布置在杆管（2）的外表面（23）的区域中，并且被设计和布置成与动态密封件（24）接触。

5. 发明授权

US06357335B1 Pneumatic volume booster for valve positioner 失效
标题翻译：阀门定位器气动体积增压器
公开(公告)号：US06357335B1
公开(公告)日：2002-03-19
申请号：US09471921
申请日：1999-12-23
申请人： Lawrence R. Lafler , Douglas J. Tanner
发明人： Lawrence R. Lafler , Douglas J. Tanner
IPC分类号： F15B1108
CPC分类号： B60T13/683 , G05D7/005 , Y10T137/0318 , Y10T137/87499 , Y10T137/87716
摘要： The system controls the position of a pneumatically operated valve using an electrical control signal from a controller. A pilot circuit of the system has multiple piezo valves that are subject to electrical signals from the controller to provide pneumatic output signals to a volume booster circuit of the system. Relatively small volume pneumatic pilot signals from the piezo valves are used to determine the opened or closed state of higher volume valve assemblies of the booster circuit which connect or disconnect the actuator of the valve to be operated with a source of pressurized gas. Both the piezo valves and the booster valve assemblies are subjected to gas at the same operating pressure, but the surface area of pistons in the booster valve assemblies exposed to the piezo valves is substantially larger than the surface area of the pistons exposed to operating pressure such that the pneumatic signals shift the pistons even when pressure is the same on both sides thereof. Both single-acting and double-acting embodiments are disclosed, as well as alternative versions of booster valve assemblies.
摘要翻译：该系统使用来自控制器的电控信号来控制气动阀的位置。系统的先导电路具有多个压电阀，其受控于控制器的电信号，以向系统的体积升压电路提供气动输出信号。使用来自压电阀的相对小体积的气动导频信号来确定升压电路的较高容量阀组件的打开或关闭状态，该增压电路连接或断开要被加压气体源运行的阀的致动器。压电阀和增压阀组件都在相同的工作压力下经受气体，但暴露于压电阀的增压阀组件中活塞的表面积远大于暴露于操作压力的活塞的表面积即使当压力在其两侧相同时，气动信号也会使活塞移动。公开了单作用和双作用实施例，以及增压阀组件的替代形式。

6. 发明授权

US06354184B1 Power machine with valve mount for valve assembly 有权
标题翻译：带阀组件的动力机构
公开(公告)号：US06354184B1
公开(公告)日：2002-03-12
申请号：US09396812
申请日：1999-09-14
申请人： Ron Hansen , Scott B. Jacobson
发明人： Ron Hansen , Scott B. Jacobson
IPC分类号： F15B1108
CPC分类号： F15B13/0402 , F15B13/044
摘要： A power machine or a skid steer loader that is driven by an engine and has hydraulic pump, hydraulic fluid conduit, a hydraulic motor in fluid communication with a hydraulic fluid conduit and a valve that is operated or actuated by linear actuator such that the linear actuator is mounted directly on the valve block.
摘要翻译：由发动机驱动并具有液压泵，液压流体管道，与液压流体管道流体连通的液压马达和由线性致动器操作或致动的阀的动力机械或滑移转向装载机，使得线性致动器直接安装在阀块上。

7. 发明授权

US06655229B2 Operation lever device 失效
公开(公告)号：US06655229B2
公开(公告)日：2003-12-02
申请号：US09754215
申请日：2001-01-05
申请人： Yuuichi Yamamoto , Yasuhiro Satou , Shuuji Hori , Naoki Ishizaki
发明人： Yuuichi Yamamoto , Yasuhiro Satou , Shuuji Hori , Naoki Ishizaki
IPC分类号： F15B1108
CPC分类号： F15B13/0422 , G05G9/047 , G05G2009/04781 , Y10T74/20012 , Y10T74/20201 , Y10T74/20396 , Y10T137/87072
摘要： It is designed that an oil pressure signal can be output by operating an operation lever in a twisting direction; a structure can be made simple and its assembly and adjustment are easy; an operation force can be reduced; and a layout is not restricted. It is also designed that when the operation lever is left free after it is twisted, it returns smoothly to the original neutral position. When the operation lever is twisted about the lever axis, the shaft supported by bearings is twisted. The twist of the shaft is converted into the movement in a direction to move the pistons by first and second levers, and the pistons are moved. When the pistons are moved, the oil pressure signal is output from the discharge ports. A disk plate is separated into a first disk plate to which the root of the operation lever is attached and a second disk plate which is tiltably supported by a tilting fulcrum. And, the first disk plate is independent of the second disk plate and twisted about the lever axis of the operation lever.

8. 发明授权

US06581509B1 Rotary cylinder assembly for a machine tool 有权
标题翻译：用于机床的旋转气缸组件
公开(公告)号：US06581509B1
公开(公告)日：2003-06-24
申请号：US09866197
申请日：2001-05-25
申请人： Philip Dan Clark , Alan Claxton , David Claxton , Gregory A. Stephens
发明人： Philip Dan Clark , Alan Claxton , David Claxton , Gregory A. Stephens
IPC分类号： F15B1108
CPC分类号： B23B31/302 , F15B11/003 , F15B2013/004 , Y10T279/12
摘要： A rotary cylinder assembly for a machine tool is provided that includes a lock check system that locks the work piece to the machine tool chuck and prevents extension and retraction of the work piece in the event of loss of hydraulic or pneumatic pressure. The rotary cylinder assembly includes a shaft end cover coupled between a fluid shaft housing and a cylinder body. The shaft end cover houses the lock check system and includes a number of flow paths that provide for extension and retraction of a piston rod connector housed in the cylinder body in response to fluid pressure supplied from the fluid shaft housing. The shaft end cover and lock check system are configured to allow small diameter cylinder bodies to be coupled thereto while providing the safety and functional features associated with the lock check system.
摘要翻译：提供了一种用于机床的旋转气缸组件，其包括锁定检查系统，其将工件锁定到机床卡盘，并且在液压或气动压力损失的情况下防止工件的伸缩。旋转气缸组件包括联接在流体轴壳体和气缸体之间的轴端盖。轴端盖容纳锁定检查系统，并且包括多个流动路径，其响应于从流体轴壳体提供的流体压力而提供容纳在缸体中的活塞杆连接器的伸缩。轴端盖和锁定检查系统被配置为允许小直径的缸体联接到其上，同时提供与锁定检查系统相关联的安全性和功能特征。

9. 发明授权

US06523453B2 Hydraulic control valve for agricultural implements 有权
标题翻译：农具液压控制阀
公开(公告)号：US06523453B2
公开(公告)日：2003-02-25
申请号：US09792370
申请日：2001-02-23
申请人： Enrico Sedoni , Gabriele Balboni
发明人： Enrico Sedoni , Gabriele Balboni
IPC分类号： F15B1108
CPC分类号： F16K31/465 , F15B13/0402 , Y10T137/87241
摘要： A hydraulic valve having a main body in which is formed a pressurized-fluid inlet opening; a first conduit communicating hydraulically with a user device; a second conduit communicating hydraulically with the user device, and at least one spool for regulating pressurized fluid flow to and from the user device; the spool having a longitudinal axis, and the position of the spool being regulated by an actuating device; the hydraulic valve being characterized in that the actuating device has a guide member for preventing the spool from rotating about the axis; the actuating device also having a cable, e.g. a Bowden-type cable, for moving the spool in two opposite directions defined by the longitudinal axis.
摘要翻译：一种液压阀，其具有形成有加压流体入口的主体; 与用户装置液压连接的第一导管; 与所述用户装置液压连接的第二导管和用于调节加压流体流入和流出所述用户装置的至少一个线轴; 所述线轴具有纵向轴线，并且所述线轴的位置由致动装置调节; 所述液压阀的特征在于，所述致动装置具有用于防止所述线轴围绕所述轴线旋转的引导构件; 致动装置还具有电缆，例如电缆。鲍登型电缆，用于沿着纵向轴线限定的两个相反方向移动阀芯。

10. 发明授权

US06516706B2 Actuator having internal valve structure 失效
标题翻译：执行器具有内部阀结构
公开(公告)号：US06516706B2
公开(公告)日：2003-02-11
申请号：US09917066
申请日：2001-07-26
申请人： Don B. Porter , Wayne D. Shapiro
发明人： Don B. Porter , Wayne D. Shapiro
IPC分类号： F15B1108
CPC分类号： F15B1/265 , F15B15/18 , F15B15/202 , F16D41/10
摘要： A hydraulic cylinder in which the cylinder head contains the main control valve for the cylinder. In one fluid path from the main control valve to an area located on one side of the cylinder's piston, fluid is directed through a transfer tube that extends through the center of the piston and terminates within a hollow ported section of the piston rod. The cylinder head can additionally include two electrically-actuated pilot valves and two pilot-operated check valves. The pilot-operated check valves are located in different passages that extend to areas located on opposite sides of the piston. The pilot-operated check valves include structure that, in combination with passages in the cylinder head, cause both pilot-operated check valves to open when pressurized fluid is being directed to one of the pilot-operated check valves by the main control valve. In the preferred embodiment, electrical wiring to the cylinder head travels through one of the fluid hoses connected to the cylinder.
摘要翻译：液压缸，其中气缸盖包含用于气缸的主控制阀。在从主控制阀到位于气缸活塞的一侧的区域的一个流体路径中，流体被引导通过延伸穿过活塞中心的传送管，并终止在活塞杆的中空端口部分内。气缸盖还可以包括两个电动致动先导阀和两个先导式止回阀。先导式止回阀位于不同的通道中，延伸到位于活塞两侧的区域。先导式止回阀包括结构，当压力流体通过主控制阀被引导到一个先导式止回阀时，与气缸盖中的通道结合使两个先导式止回阀打开。在优选实施例中，到气缸盖的电线穿过连接到气缸的流体软管之一。

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