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41. 发明授权

US06871575B2 Hydraulic control apparatus for controlling hydraulic cylinder for implement 有权
标题翻译：液压缸液压控制装置
公开(公告)号：US06871575B2
公开(公告)日：2005-03-29
申请号：US10400160
申请日：2003-03-26
申请人： Isao Korogi
发明人： Isao Korogi
IPC分类号： F15B11/00 , E02F3/43 , E02F9/22 , F15B11/024 , F15B13/04 , G05G5/00 , G05G9/047
CPC分类号： F15B11/024 , E02F9/2217 , F15B2013/0413 , F15B2211/20523 , F15B2211/30525 , F15B2211/3116 , F15B2211/3127 , F15B2211/3133 , F15B2211/31576 , F15B2211/324 , F15B2211/71 , F15B2211/78 , F15B2211/88 , G05G5/005 , G05G9/047 , Y10T137/87072
摘要： A hydraulic control apparatus for controlling a hydraulic cylinder for an implement selectively mounted to a work vehicle. The apparatus includes a hydraulic power source, a four-position changeover control valve disposed between the hydraulic cylinder and the hydraulic power source, and an operational mechanism for operating the four-position changeover control valve. The four-position changeover control valve has a first position for moving a rod of the hydraulic cylinder in one direction, a second position for stopping the rod of the hydraulic cylinder, a third position for moving the hydraulic cylinder rod at a high speed in the other direction with using a function of a regenerative circuit and a fourth position for moving the hydraulic cylinder rod in the other direction at a standard speed without using the function of the regenerative circuit, in the mentioned order. The operational mechanism includes, along an operational movement path thereof, a rollback position, a neutral position, a rapid dump position and a standard dump position, the rollback position corresponding to the first position, the neutral position corresponding to the second position, the rapid dump position corresponding to the third position, the standard dump position corresponding to the fourth position, respectively.
摘要翻译：一种用于控制用于选择性地安装到作业车辆上的工具的液压缸的液压控制装置。该装置包括液压动力源，设置在液压缸和液压动力源之间的四位置切换控制阀以及用于操作四位置切换控制阀的操作机构。四位置切换控制阀具有用于沿一个方向移动液压缸的杆的第一位置，用于停止液压缸的杆的第二位置，用于使液压缸杆高速移动的第三位置使用再生电路的功能的另一方向和第四位置，以不以再生电路的功能为标准速度在另一方向上移动液压缸杆。操作机构沿其操作移动路径包括回滚位置，中立位置，快速倾倒位置和标准倾倒位置，对应于第一位置的回滚位置，对应于第二位置的中立位置，快速对应于第三位置的倾倒位置，分别对应于第四位置的标准倾倒位置。

42. 发明授权

US06089931A Trim-tilt device for marine propulsion device 失效
标题翻译：用于船用推进装置的倾斜装置
公开(公告)号：US06089931A
公开(公告)日：2000-07-18
申请号：US188763
申请日：1998-11-09
申请人： Akira Gorokawa
发明人： Akira Gorokawa
IPC分类号： B63H20/08 , F15B11/024 , F15B15/14 , F15B15/20 , B63H5/125
CPC分类号： F15B15/204 , B63H20/10 , F15B11/024 , F15B15/1447 , F15B15/149 , F15B2211/20515 , F15B2211/20561 , F15B2211/27 , F15B2211/30505 , F15B2211/3052 , F15B2211/31529 , F15B2211/611 , F15B2211/613 , F15B2211/7053
摘要： A trim-tilt device for a marine propulsion device includes a piston having a valve device for stopping a trim action by bringing a piston-side chamber and a rod-side chamber into communication with each other at an end of a trim region before a propeller of the marine propulsion device rises higher than the surface of the water when the marine propulsion device is generating a propulsive force.
摘要翻译：一种用于船舶推进装置的装饰倾斜装置包括具有阀装置的活塞，该阀装置用于通过使活塞侧室和杆侧室在螺旋桨之前的装饰区域的端部彼此连通来停止调整动作当船舶推进装置产生推进力时，船舶推进装置的升高高于水面。

43. 发明授权

US5960696A Hydraulic cylinder with press-fitted pipe 失效
标题翻译：液压缸配有压配管
公开(公告)号：US5960696A
公开(公告)日：1999-10-05
申请号：US953391
申请日：1997-10-17
申请人： Susumu Niwa , Mineo Tanahashi
发明人： Susumu Niwa , Mineo Tanahashi
IPC分类号： F15B11/024 , F15B15/14 , F15B15/22 , F01B11/02
CPC分类号： F15B15/1447 , F15B11/024 , F15B15/222 , F15B15/223 , F15B2211/86
摘要： It is intended to dispense with the pipe welding work, thereby improve the pipe mounting performance and prevent contamination which results from welding, and elimination the waste of oil.A spigot portion 34 is mounted upright integrally in the center of the upper end portion of a piston 17, the base end of a piston rod 18 is fitted on the outer periphery of the spigot portion 34, and the outer periphery of the base end of a pipe 41 is press-fitted into an upper hollow part of the spigot portion 34.
摘要翻译：旨在省去管道焊接工作，从而提高管道安装性能，防止焊接产生的污染，消除油的浪费。一个插口部分34一体地安装在活塞17的上端部的中心，活塞杆18的基端装配在插口部分34的外周上，并且基端的外周管41被压配合到插口部分34的上部中空部分中。

44. 发明授权

US5836400A Three speed circuit for hydraulic tool 失效
标题翻译：液压工具三速回路
公开(公告)号：US5836400A
公开(公告)日：1998-11-17
申请号：US972767
申请日：1997-11-18
申请人： Myron D. Tupper , William Gallentine
发明人： Myron D. Tupper , William Gallentine
IPC分类号： B25F5/00 , F15B7/04 , F15B11/024 , F15B15/18
CPC分类号： B25F5/005 , F15B11/024 , F15B15/18 , F15B7/04 , F15B2011/0243 , F15B2211/2053 , F15B2211/30505 , F15B2211/30525 , F15B2211/3058 , F15B2211/31511 , F15B2211/31529 , F15B2211/31558 , F15B2211/31576 , F15B2211/324 , F15B2211/329 , F15B2211/75
摘要： A hydraulic tool having a ram or other working element propelled by pressurized fluid. The tool has a lever which is squeezed to develop fluid force in a pump. The fluid circuitry automatically operates the ram selectively at any one of three operating speeds and hence at three different magnitudes of force relative to the input speed of the lever as it is squeezed. The circuitry includes a principal supply subcircuit in which fluid flows directly from the pump to the ram, thereby establishing a normal speed mode of operation. A high speed subcircuit and a low speed subcircuit each operated by respective pressure responsive valves direct fluid ejected as the ram piston and pump piston advance to the respective rear sides of the ram piston and pump piston. This has the effect of accelerating the ram and operating at reduced force, thereby establishing a high speed mode of operation when resistance against the ram is minimal, and of decelerating the pump piston and operating at greater force, thereby establishing a low speed mode of operation when resistance is relatively high. In a preferred embodiment, the hydraulic tool includes a handle enabling grasping in pistol grip fashion and enabling ready squeezing of the lever.
摘要翻译：具有由加压流体推动的冲头或其他工作元件的液压工具。该工具具有一个被挤压以在泵中产生流体力的杠杆。流体回路自动地以三个操作速度中的任一个自动地操作柱塞，并且因此在杠杆被挤压时相对于杠杆的输入速度以三个不同的大小的力量自动操作柱塞。电路包括一个主要的供电支路，其中流体直接从泵流到冲头，从而建立正常的运行速度模式。每个由相应的压力响应阀操作的高速分支电路和低速子电路在液压活塞和泵活塞前进到活塞活塞和泵活塞的相应后侧时引导流体喷射。这具有加速冲头并以减小的力进行操作的效果，从而当抵抗冲头的阻力最小时建立高速运行模式，并且使泵活塞减速并以更大的力运行，由此建立低速运行模式当电阻相对较高时。在优选实施例中，液压工具包括能够以手枪式抓握方式抓握的手柄，并且使得能够准备好挤压杆。

45. 发明授权

US5442912A Hydraulic recovery device 失效
标题翻译：液压回收装置
公开(公告)号：US5442912A
公开(公告)日：1995-08-22
申请号：US256557
申请日：1994-07-11
申请人： Toichi Hirata , Genroku Sugiyama , Masami Ochiai
发明人： Toichi Hirata , Genroku Sugiyama , Masami Ochiai
IPC分类号： E02F9/22 , F15B11/024 , F16D31/02 , F15B11/16
CPC分类号： E02F9/2282 , E02F9/2221 , E02F9/2296 , F15B11/024 , F15B2011/0243 , F15B2011/0246 , F15B2211/20546 , F15B2211/20576 , F15B2211/30505 , F15B2211/30525 , F15B2211/3058 , F15B2211/3116 , F15B2211/31576 , F15B2211/329 , F15B2211/6303 , F15B2211/6309 , F15B2211/6313 , F15B2211/6316 , F15B2211/6346 , F15B2211/6654 , F15B2211/6655 , F15B2211/67 , F15B2211/7053 , F15B2211/7058 , F15B2211/71 , F15B2211/75 , F15B2211/88
摘要： A hydraulic recovery device in a hydraulic system having a pump (1) driving a plurality of actuators through a plurality of control valves (2, 3), the hydraulic recovery device comprising a variable resistance valve (6, 60) in a first line being controlled by a control signal (Px), a third line, a check valve (7) disposed in the third line for allowing the hydraulic fluid to flow only in a direction from the first line toward the second line. The hydraulic recovery device further comprises (a) detecting apparatus (101; 106; 102a, 102b; 103a, 103b) for detecting a condition variable (Pd; Ph; Pia1, Pia2; Pib1, Pib2) related to an operation of the actuator (4); (b) control apparatus (100; 100A-100H) for receiving a signal from the detecting apparatus and producing a drive signal (i; i*) corresponding to the condition variable based on a relationship stored therein in advance; and (c) control signal generating apparatus (105) for receiving the drive signal and producing the control signal (Px) corresponding to the drive signal, whereby the device can optionally set a characteristic of the variable resistance valve and can avoid abrupt changes in a recovered flow rate.
摘要翻译： PCT No.PCT / JP93 / 01763 Sec。 371日期：1994年7月11日 102（e）日期1994年7月11日PCT 1993年12月3日PCT PCT。第WO94 / 13959号公报日期：1994年6月23日。液压系统中的液压回收装置，具有通过多个控制阀（2,3）驱动多个致动器的泵（1），所述液压回收装置包括可变阻力阀（6， 60）由控制信号（Px）控制，第三线，设置在第三线中的止回阀（7），用于允许液压流体仅沿着从第一线路朝向第二线路的方向流动。液压回收装置还包括（a）检测装置（101; 106; 102a，102b; 103a，103b），用于检测与致动器的操作有关的状态变量（Pd; Ph; Pia1，Pia2; Pib1，Pib2） 4）; （b）控制装置（100; 100A-100H），用于从所述检测装置接收信号，并且根据预先存储的关系产生与所述条件变量相对应的驱动信号（i; i *）; 和（c）用于接收驱动信号并产生对应于驱动信号的控制信号（Px）的控制信号发生装置（105），由此该装置可以可选地设置可变电阻阀的特性，并且可以避免回收流量。

46. 发明授权

US5163352A Cylinder control unit 失效
标题翻译：气缸控制单元
公开(公告)号：US5163352A
公开(公告)日：1992-11-17
申请号：US769836
申请日：1991-10-02
申请人： Kazunori Yoshino
发明人： Kazunori Yoshino
IPC分类号： E02F9/22 , F15B11/00 , F15B11/024
CPC分类号： F15B11/024 , F15B2011/0243 , F15B2211/20546 , F15B2211/30505 , F15B2211/30525 , F15B2211/3058 , F15B2211/3116 , F15B2211/31576 , F15B2211/7107 , F15B2211/7128 , F15B2211/853 , F15B2211/8613 , Y10T137/88054
摘要： A buffer valve for a cylinder control unit includes a cylinder having first and second plungers each axially slidable in the cylinder with an intermediate piston disposed between the plungers and slidable in the cylinder with springs urging the plungers in the direction of the intermediately located piston; separate chambers are provided in the cylinder between the piston and the first and second plungers and second chambers are provided on the side of the plungers facing away from the piston; passages are provided in the first and second plungers for communicating between the first and second chambers on opposite sides of each plunger; a bypass passage connecting the first chambers for each plunger is provided with a check valve for allowing flow in only one direction from the first chamber of the first plunger to the first chamber of the second plunger so that when one of the plungers closes off communication between the bypass passage and the cylinder control unit, the check valve will prevent flow from the first chamber of the second piston.
摘要翻译：用于气缸控制单元的缓冲阀包括具有第一和第二柱塞的气缸，其具有可在气缸中轴向滑动的中间活塞，中间活塞设置在柱塞之间并且可在弹簧中滑动，弹簧沿着位于中间的活塞的方向推动柱塞; 在活塞和第一和第二柱塞之间的气缸中设置有分离的室，并且第二室设置在离开活塞的柱塞的侧面上; 通道设置在第一和第二柱塞中，用于在每个柱塞的相对侧上的第一和第二室之间连通; 连接每个柱塞的第一室的旁路通道设置有止回阀，该止回阀允许仅在从第一柱塞的第一室到第二柱塞的第一室的一个方向上流动，使得当其中一个柱塞闭合旁通通道和气缸控制单元，止回阀将防止从第二活塞的第一室流出。

47. 发明授权

US5065664A Control circuit for a cylinder allowing flow between an upper and a lower chamber 失效
标题翻译：一个气缸的控制电路允许在上部和下部室之间流动
公开(公告)号：US5065664A
公开(公告)日：1991-11-19
申请号：US502340
申请日：1990-03-30
申请人： Shuji Ohta , Toshiyuki Takeuchi
发明人： Shuji Ohta , Toshiyuki Takeuchi
IPC分类号： B66F9/22 , F15B11/024 , F15B13/02
CPC分类号： F15B11/024 , F15B13/021 , F15B2011/0243 , F15B2211/30525 , F15B2211/3058 , F15B2211/3116 , F15B2211/31576 , F15B2211/324 , F15B2211/40507 , F15B2211/40584 , F15B2211/411 , F15B2211/41527 , F15B2211/473 , F15B2211/6355 , F15B2211/67 , F15B2211/76
摘要： A hydraulic control circuit arrangement for a single-acting cylinder provided with bottom and rod chambers separated by a piston having a piston rod extending the rod chamber, the arrangement including a directional control valve for controlling a supply of an operating oil from a hydraulic pump to the bottom chamber and an evacuation of the operating oil from both the bottom and rod chambers, a first pilot-operated valve for controlling the type of operation of the single-acting cylinder from a ram type to a piston type, and vice versa, in response to a change in an extent of a load applied to the single-acting cylinder during the lifting thereof, a short-circuiting conduit arranged between the bottom and rod chambers of the cylinder to short-circuit a flow of the operating oil from the bottom to rod chamber, and vice versa, a second pilot-operated valve located in the short-circuiting conduit to control the short-circuiting of the flow of operating oil, and a flow control valve for generating a pressure in the bottom chamber of the single-acting cylinder to thereby promote the short-circuiting of the flow of operating oil from the bottom to rod chamber of the single-acting cylinder during the lowering of the cylinder.

48. 发明授权

US4836088A Directional control valve and regeneration valve 失效
标题翻译：定向控制阀和再生阀
公开(公告)号：US4836088A
公开(公告)日：1989-06-06
申请号：US767764
申请日：1985-08-21
申请人： David T. Seabaugh
发明人： David T. Seabaugh
IPC分类号： F15B11/024
CPC分类号： F15B11/024 , F15B2011/0243 , F15B2211/30505 , F15B2211/30525 , F15B2211/3058 , F15B2211/3059 , F15B2211/31576 , F15B2211/31588 , F15B2211/324 , F15B2211/329 , F15B2211/50581 , F15B2211/5153 , F15B2211/775
摘要： An hydraulic system for operating double acting piston/cylinder assemblies and for effecting automatic transition from a regenerative mode of operation of a double acting piston/cylinder assembly to a non-regenerative mode of operation thereof. Pressure responsive valve means automatically converts the hydraulic system from one initially being a high-speed/low force operation to a high force/low speed operation.
摘要翻译：一种用于操作双作用活塞/气缸组件并用于实现从双作用活塞/气缸组件的再生操作模式到其非再生操作模式的自动转变的液压系统。压力响应阀意味着自动将液压系统从最初是高速/低速运行的液压系统转换为高力/低速运行。

49. 发明授权

US4825745A Electrohydraulic control system 失效
标题翻译：电液控制系统
公开(公告)号：US4825745A
公开(公告)日：1989-05-02
申请号：US208415
申请日：1988-06-17
申请人： Werner Kuttruf
发明人： Werner Kuttruf
IPC分类号： F15B11/024 , B30B15/16 , B30B15/18 , B30B15/20 , F15B9/08 , F15B9/12 , F15B15/22
CPC分类号： B30B15/16 , F15B9/12
摘要： An electrohydraulic control system for a hydraulic working cylinder, for example of a press, the piston of which has a main working surface and a smaller working surface on the rod side. A low-pressure circuit is provided for the feed or retraction movement of the piston, and a high-pressure circuit is provided for the loading movement at increased feed force and reduced speed. The connection or disconnection of these two circuits, when required, is produced with two 3/2 way valves that are coupled together. To control these control valves, there is provided an electrical reference motor that drives a cam disk which brings about the deflection of the coupled control slide valves of the control valves against a spring. A mechanical feedback is provided via the power piston, so that altogether a closed hydromechanical position control circuit is formed. If there is a difference between theoretical and actual values, this difference produces such a variation of the position of the control valves that via the control system of the low-pressure and high-pressure circuits connected therewith, the system endeavors to correct this difference automatically.
摘要翻译：一种用于液压工作缸的电动液压控制系统，例如压力机，其活塞具有主工作表面和在杆侧上的较小工作表面。提供了用于活塞的进给或缩回运动的低压回路，并且在增加的进给力和降低的速度下提供用于装载运动的高压回路。当需要时，这两个电路的连接或断开用两个连接在一起的3/2通阀制成。为了控制这些控制阀，提供了一种驱动凸轮盘的电动参考电动机，其使控制阀的联动的控制滑阀的偏转抵抗弹簧。通过动力活塞提供机械反馈，从而形成一个闭合的液压机械位置控制电路。如果在理论值和实际值之间存在差异，则这种差异会导致控制阀的位置变化，即通过与其连接的低压和高压回路的控制系统，该系统自动地纠正该差异。

50. 发明授权

US4768420A Control arrangement for controlling a hydraulic drive for driving a piston pump 失效
标题翻译：用于控制用于驱动活塞泵的液压驱动器的控制装置
公开(公告)号：US4768420A
公开(公告)日：1988-09-06
申请号：US34853
申请日：1987-04-03
申请人： Ernst Korthaus
发明人： Ernst Korthaus
IPC分类号： F15B11/024 , F04B9/10 , F04B9/105 , F04B9/113 , F15B11/02 , F15B11/05 , F15B13/02
CPC分类号： F15B13/021 , F04B9/1053
摘要： A control arrangement for hydraulic drives for driving piston pumps includes a control piston which is switchable between its end positions. The control piston has reciprocably effective longitudinally-extending flow restrictors connected into the power lines of the hydraulic drive and the control valves corresponding to each flow restrictor are provided with a pressure balancer. The direction of flow of the hydraulic fluid is the same through all flow restrictors in all switching positions of the control piston. The pressure balancer is controlled by the drop in pressure across the flow restrictor corresponding thereto. The outlet of the control valve for the hydraulic fluid flowing to the hydraulic drive and the inlet for the hydraulic fluid flowing away from the hydraulic drive are connected together at a common connecting terminal of the hydraulic drive.
摘要翻译：用于驱动活塞泵的液压驱动器的控制装置包括可在其端部位置之间切换的控制活塞。控制活塞具有连续到液压驱动器的动力线的可往复有效的纵向延伸的限流器，并且对应于每个限流器的控制阀设置有压力平衡器。在控制活塞的所有切换位置，液压流体的流动方向与所有流量限制器相同。压力平衡器由对应于其的限流器的压力下降控制。流到液压驱动器的液压流体的控制阀的出口和从液压驱动器流出的液压流体的入口在液压驱动器的公共连接端子处连接在一起。

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