公开(公告)号：US4596177A

公开(公告)日：1986-06-24

申请号：US441309

申请日：1982-11-12

申请人： Louis P. Biafore

发明人： Louis P. Biafore

IPC分类号： B64C13/36 ,  B64C13/40 ,  F15B9/09 ,  F15B11/16 ,  F15B13/06 ,  F15B18/00 ,  F15B20/00 ,  F15B21/02

CPC分类号： B64C13/40 ,  F15B18/00

摘要： A hydraulic fluid powered actuation system preferably for controlling the position of a control surface of an aircraft in response to a plurality of redundant control signals is disclosed. The system comprises an actuator adapted to be mounted in the aircraft, comprising a housing having first and second cylinders with a piston moveably mounted within each of the cylinders. A piston rod connects the pistons and is adapted to engage the control surface. Two rotary torque motors having a common drive shaft are provided which are adapted to receive the plurality of redundant controls signals. First and second rotary control valves, coupled to the drive shaft, and thus, adapted to be driven by the rotary torque motors, are used to control the emission and exhaust of hydraulic fluid from the first and second cylinders, respectively. Preferably, there are four control signals and the torque motors are DC, multiple-poled torque motors with each coil on each torque motor coupled to a different control signal.

摘要翻译： 公开了一种优选用于响应于多个冗余控制信号来控制飞行器的控制表面的位置的液压流体动力驱动系统。 该系统包括适于安装在飞行器中的致动器，包括具有可移动地安装在每个气缸内的活塞的第一和第二气缸的壳体。 活塞杆连接活塞并适于接合控制表面。 提供具有公共驱动轴的两个旋转扭矩电动机，其适于接收多个冗余控制信号。 用于驱动轴的第一和第二旋转控制阀被分别用于控制来自第一和第二气缸的液压流体的排放和排放。 优选地，存在四个控制信号，并且扭矩电动机是DC，多极转矩电动机，每个转矩电动机上的每个线圈耦合到不同的控制信号。

公开(公告)号：US4589444A

公开(公告)日：1986-05-20

申请号：US610708

申请日：1984-05-16

申请人： Jaroslav Masek ,  Franz Suter

发明人： Jaroslav Masek ,  Franz Suter

IPC分类号： F01D17/22 ,  F01D17/14 ,  F01D17/26 ,  F15B15/18 ,  F16K11/20 ,  F15B13/06 ,  F16K31/122

CPC分类号： F15B15/18 ,  F01D17/145 ,  F01D17/26 ,  Y10T137/87917 ,  Y10T137/87981

摘要： The electro-hydraulic actuator for turbine valves essentially includes a control valve, a rapid action stop valve, a hydraulic supply and an oil supply unit. In order to create a hydraulic actuator for turbine valves which, on the one hand, satisfies the stringent requirements with regard to adjustment force and adjustment speed and, on the other hand, avoids the problems associated with the transmission of hydraulic energy, at least one adjustment valve and at least one rapid action stop valve are allocated per turbine inlet valve. The actuators of these two valves are of the same design and are mutually interchangeable and integrated into a compact actuator unit located on the valve housing. The actuators are connected in pairs to a hydraulic supply located immediately adjacent to the actuators. In addition, the actuators are controlled by a volumetrically controlled oil supply unit integrated with the hydraulic supply, this oil supply unit containing an adjustment pump for controlling the adjustment valve and an auxiliary pump for controlling the rapid action stop valve.

摘要翻译： 用于涡轮阀的电动液压致动器基本上包括控制阀，快速动作截止阀，液压供应和供油单元。 为了创建用于涡轮阀的液压致动器，其一方面满足关于调节力和调节速度的严格要求，另一方面，避免了与液压能量传递相关的问题，至少一个 每个涡轮机入口阀分配调节阀和至少一个快速动作截止阀。 这两个阀的致动器具有相同的设计，并且可相互互换并且集成到位于阀壳体上的致动器单元中。 致动器成对地连接到紧邻致动器的液压供应。 此外，致动器由与液压供应器集成的容积控制的供油单元控制，该供油单元包含用于控制调节阀的调节泵和用于控制快速动作截止阀的辅助泵。

公开(公告)号：US4506898A

公开(公告)日：1985-03-26

申请号：US576146

申请日：1984-02-02

申请人： Maynard M. Herron

发明人： Maynard M. Herron

IPC分类号： A01B63/22 ,  F15B11/16 ,  F15B13/06 ,  F15B15/24

CPC分类号： A01B63/22

摘要： The double-acting hydraulic cylinders of the lift system are connected in a master-slave series relationship. When the cylinders have been retracted to a predetermined extent, a control valve between the last slave and a primary selector valve of the system is mechanically closed responsive to the arrival of the cylinders at such retracted condition and, simultaneously, the master is prevented from further retraction by either mechanical means or another hydraulic control valve between the master and the primary selector valve. Thus, the cylinders and their interconnecting lines are cut off from inadvertent overcharging, as well as fluid escape, so that all cylinders remain uniformly extended with drift from their established positions. Several circuit arrangements are disclosed, including provision for bleeding off higher than necessary operating pressures tending to become trapped within the cylinders and their associated flow lines after the cylinders have reached the intended point of retraction.

摘要翻译： 电梯系统的双作用液压缸以主从系列关系连接。 当气缸已经缩回到预定的程度时，响应于在这种缩回状态下的气缸的到来，系统的最后的从动件和主换向阀之间的控制阀被机械地关闭，并且同时防止了主机进一步 主机和主换向阀之间的机械装置或另一个液压控制阀回缩。 因此，气缸及其互连线切断了无意的过充电以及流体逸出，使得所有气缸保持均匀地从其已建立的位置漂移延伸。 公开了几种电路装置，包括在气缸达到预定的收缩点之后高于要在气缸内被捕获的必要操作压力及其相关联的流动管线排出的设备。

公开(公告)号：US4454715A

公开(公告)日：1984-06-19

申请号：US278493

申请日：1981-05-22

申请人： Thomas P. Muller ,  Leon A. Wirt

发明人： Thomas P. Muller ,  Leon A. Wirt

IPC分类号： F15B11/17 ,  F15B13/06 ,  F15B13/09

CPC分类号： F15B11/17 ,  F15B2211/20576 ,  F15B2211/30585 ,  F15B2211/3116 ,  F15B2211/40584 ,  F15B2211/455 ,  F15B2211/473 ,  F15B2211/50518 ,  F15B2211/5153 ,  F15B2211/55 ,  F15B2211/6313 ,  F15B2211/6355 ,  F15B2211/7142

摘要： A fluid control system (10) has a first fluid pump (12) for supplying pressurized fluid in interrupted series to first and second work elements (14,16). The first work element (14) in the series has priority which prevents simultaneous full power operation of the first and second work elements (14,16). A second fluid pump (24) is capable of supplying pressurized fluid to the second work element (16) only upon receiving a signal indicating that pressurized fluid from the first pump (12) is being directed to the first work element (14). The subject fluid control system (10) is especially useful with a tree harvesting machine where it is beneficial to propel the machine and at the same time rotate the upper structure.

摘要翻译： PCT No.PCT / US81 / 00689 Sec。 371日期：1981年5月22日 102（e）日期1981年5月22日PCT提交1981年5月22日PCT公布。 出版物WO82 / 04105 日期：1982年11月25日。一种流体控制系统（10）具有用于向第一和第二工作元件（14,16）间歇地供应加压流体的第一流体泵（12）。 该系列中的第一工作元件（14）具有优先权，其防止第一和第二工作元件（14,16）的同时全功率操作。 仅当接收到指示来自第一泵（12）的加压流体被引导到第一工作元件（14）的信号时，第二流体泵（24）能够将加压流体供应到第二工作元件（16）。 主体流体控制系统（10）对于采伐机特别有用，其中有利于推进机器并同时旋转上部结构。

公开(公告)号：US4449365A

公开(公告)日：1984-05-22

申请号：US311592

申请日：1981-10-15

申请人： Peter D. Hancock

发明人： Peter D. Hancock

IPC分类号： B62D5/07 ,  B66F9/22 ,  F15B11/17 ,  B62D5/06 ,  F15B11/16 ,  F15B13/06

CPC分类号： B62D5/07 ,  B66F9/22 ,  F15B11/17 ,  F15B2211/20515 ,  F15B2211/20576 ,  F15B2211/30505 ,  F15B2211/3116 ,  F15B2211/4053 ,  F15B2211/45 ,  F15B2211/634 ,  F15B2211/7142 ,  F15B2211/781

摘要： A lift truck hydraulic control system designed to conserve energy includes a pair of separately controlled pumps (21, 22). One pump (21) supplies pressure fluid to a valve (12) for a steering cylinder (11) by way of a high priority port (34) of a priority valve (32) with the low priority flow passing to parallel connected lift and tilt valves (19, 18) which control operation of the lift cylinder (15) and tilt cylinders (16, 17), respectively. The capacity of pump (21) is sufficient to provide proper, effective operation of the steering and tilt functions but is not adequate to provide hydraulic fluid flow for high speed expansion of the lift cylinder (15). The other pump (22) is operated to supply additional pressure fluid flow for high speed lift only when the lift valve (19) is shifted to a raise position. In one embodiment, a low speed lift is obtained by using the output of the pump (21) and a high speed lift is obtained by selectively adding the output of the second pump 22. This is achieved by operating the other pump (22) only when the lift valve (19) is placed in an extreme raise position. In another embodiment, the pumps (21, 22) are operated only "on demand," thereby further conserving energy.

摘要翻译： 设计用于节约能源的起重液压控制系统包括一对单独控制的泵（21,22）。 一个泵（21）通过优先阀（32）的高优先级端口（34）将压力流体供应到用于转向缸（11）的阀（12），其中低优先级流通过并联连接的提升和倾斜 分别控制提升缸（15）和倾斜缸（16,17）的操作的阀（19,18）。 泵（21）的容量足以提供转向和倾斜功能的适当，有效的操作，但不足以为提升缸（15）的高速膨胀提供液压流体流。 只有当提升阀（19）移动到提升位置时，另一个泵（22）被操作以便为高速提升提供额外的压力流体流。 在一个实施例中，通过使用泵（21）的输出获得低速提升，并且通过选择性地添加第二泵22的输出来获得高速提升。这通过仅操作另一泵（22）来实现 当提升阀（19）处于极高的位置时。 在另一个实施例中，泵（21,22）仅“按需”操作，从而进一步节省能量。

公开(公告)号：US4438780A

公开(公告)日：1984-03-27

申请号：US436159

申请日：1982-10-22

申请人： Probir K. Chatterjea

发明人： Probir K. Chatterjea

IPC分类号： B62D11/08 ,  F16D67/04 ,  F15B13/06

CPC分类号： F16D67/04 ,  B62D11/08 ,  Y10T137/86582 ,  Y10T137/87193 ,  Y10T137/87225

摘要： Clutch-clutch-brake steering unit having hydraulically actuated cylinders for controlling same to control rotation of a track-drive sprocket in a crawler tractor. Specifically, one of the clutch cylinders and a brake cylinder provided in the unit have an inlet-outlet port in common, and are so arranged on a spring-applied-brake, hydraulically-applied-clutch basis that a single pressure signal in the inlet-outlet port alternately operates the cylinders to apply the brake and release the one clutch, to apply the one clutch and release the brake or, by proper modulation, to partially engage either, i.e., slip the clutch or drag the brake to intermediate degrees as desired. And, to nearly the same extent, the other clutch cylinder and the brake cylinder provided in the unit have inlet-outlet ports in common and are similarly arranged that the absence or presence of a single pressure control signal in their inlet-outlet ports alternately operates the cylinders to apply the brake and release the other clutch, or to apply the other clutch and release the brake.

摘要翻译： 离合器离合器制动转向单元具有液压致动缸，用于控制其用于控制​​履带式拖拉机中的履带驱动链轮的旋转。 具体地，设置在该单元中的离合器缸和制动缸中的一个具有共同的入口 - 出口，并且布置在弹簧施加制动器，液压施加离合器的基础上，使得入口中的单个压力信号 - 出口端口交替地操作气缸以施加制动并释放一个离合器，以施加一个离合器并释放制动器，或者通过适当的调制来部分地接合，即，将离合器滑动或者将制动器拖动到中间程度 想要的 并且，在几乎相同的程度上，设置在该单元中的另一个离合器缸和制动缸具有共同的入口 - 出口端口，并且类似地布置成使得在其入口 - 出口端口中不存在或存在单个压力控制信号交替地操作 气缸应用制动器并释放另一个离合器，或者施加另一个离合器并释放制动器。

公开(公告)号：US4430924A

公开(公告)日：1984-02-14

申请号：US297261

申请日：1981-08-28

申请人： Richard P. Dunn ,  Wilbur D. Garrels

发明人： Richard P. Dunn ,  Wilbur D. Garrels

IPC分类号： F04B47/02 ,  F01L25/08 ,  F01B15/00 ,  F15B13/06

CPC分类号： F04B47/02 ,  Y10T74/2156

摘要： A petroleum pumping unit which is especially suitable for use in remote oil fields and under unpredictable pumping conditions is disclosed. The petroleum pumping unit of the present invention, which is easily movable between a folded, collapsed position for storage and shipment and an erect position for pumping operations, includes a horizontal support platform on which is pivotally mounted a mast assembly including a pair of masts spaced outwardly from the centrally positioned well polish rod. The polish rod is engaged by a notch in a horizontal, vertically movable bridle and is powered by at least one pair of flexibly mounted hydraulic cylinders and associated piston rods attached to the bridle and positioned between the polish rod and the masts and parallel thereto. Vertical movement of the bridle and, therefore, the stroke of the polish rod is defined by upper and lower limit switches which are actuated by actuating means on the bridle. A counterweight support box which surrounds the masts and is vertically movable thereon is provided to assist the cylinders in powering the polish rod. Tapered weight brackets including diagonal projecting ridges engage notched counterweights which are held in place by gravity and prevented from contacting the mast by weight guards. The counterweight box may be eliminated and a plurality of spaced cylinders employed to power the polish rod.

摘要翻译： 公开了一种特别适用于偏远油田和不可预测的泵送条件下的抽油机。 本发明的抽油机可容易地在用于储存和运输的折叠的折叠位置和用于泵送操作的直立位置之间移动，包括水平支撑平台，枢轴安装有桅杆组件，所述桅杆组件包括一对间隔开的桅杆 从中心定位好的抛光杆向外。 抛光杆通过水平的可垂直移动的叉形件中的凹口接合，并且由至少一对柔性安装的液压缸和相关联的活塞杆驱动，所述液压缸和相关联的活塞杆连接到所述吊带并且定位在抛光杆和桅杆之间并与其平行。 襟翼的垂直运动，因此抛光杆的行程由上限和下限开关限定，上限和下限开关由牵引件上的致动装置驱动。 设置围绕桅杆并在其上垂直移动的配重支撑箱，以帮助气缸驱动抛光杆。 锥形重量支架包括对角突出的脊部接合切口的配重，这些配重由重力保持在适当的位置，并防止重量防护罩与桅杆接触。 可以排除配重箱，并且使用多个间隔的缸来为抛光杆供电。

公开(公告)号：US4350080A

公开(公告)日：1982-09-21

申请号：US216802

申请日：1980-12-16

申请人： John S. Page, Jr.

发明人： John S. Page, Jr.

IPC分类号： E21B43/12 ,  F04B47/04 ,  F15B11/16 ,  F15B13/06

CPC分类号： E21B43/127 ,  F04B47/04

摘要： A pumping unit pumps two wells, simultaneously, to save energy and space, weight of one rod string offsetting weight of the other string.

摘要翻译： 抽油机同时泵两口井，以节省能量和空间，一根杆柱的重量抵消另一根绳子的重量。

公开(公告)号：US4343151A

公开(公告)日：1982-08-10

申请号：US245241

申请日：1980-05-16

申请人： Larry W. Lorimor

发明人： Larry W. Lorimor

IPC分类号： B62D5/06 ,  B62D5/07 ,  F15B11/16 ,  F15B13/06 ,  F16H39/46

CPC分类号： F15B11/16 ,  B62D5/07 ,  F15B2211/20553 ,  F15B2211/30535 ,  F15B2211/351 ,  F15B2211/40515 ,  F15B2211/428 ,  F15B2211/45 ,  F15B2211/6054 ,  F15B2211/6055 ,  F15B2211/6355 ,  F15B2211/7058 ,  F15B2211/781

摘要： Prior art interrupted series type load sensitive hydraulic systems have not had the capability of both providing full speed simultaneous vehicle cornering and implement correction while preventing the same when the implements are operating at a high pressure level, and preventing low torque motor stall. Herein, an input flow path (22) delivers pressurized fluid flow from a source (12) to a first priority (steering) circuit (14). A series flow path (24) delivers the output flow from the circuit (14) to an implement circuit (16). A parallel flow path (26) delivers a portion of the flow from the source (12) to the implement circuit (16). A valving structure (42) is in the series flow path (24). The valving structure (42) is opened in response to load pressure in the implement circuit (16) being at or below a selected value and is closed in response to the load pressure in the implement circuit being above said value. Generally, flow through the parallel flow path (26) is blocked when differential pressure in the steering circuit (14) is below a specified value. High speed turning and implement correction are provided at low pressures and are prevented when the implement is operating at high pressure level. Low torque motor stall is prevented. Utilization of vehicle horsepower is enhanced with the selectable series/parallel circuitry.

摘要翻译： PCT No.PCT / US80 / 00577 Sec。 371日期1980年5月16日 102（e）1980年5月16日PCT申请1980年5月16日。先前的中断系列型负载敏感液压系统没有能力同时提供全速同时车辆转弯和实施修正，同时防止工具运行时相同 在高压水平，并防止低扭矩电机失速。 这里，输入流路（22）将加压流体流从源（12）输送到第一优先（转向）电路（14）。 串联流路（24）将来自电路（14）的输出流传递到实施电路（16）。 平行流动路径（26）将流的一部分从源（12）输送到工具电路（16）。 阀结构（42）处于串联流动路径（24）中。 阀体结构（42）响应于工作电路（16）中的负载压力等于或低于选定值而打开，并且响应于工具电路中的负载压力高于所述值而闭合。 通常，当转向电路（14）中的压差低于规定值时，流过平行流路（26）的流动被阻挡。 在低压下提供高速转向和机构校正，并且当工具在高压水平下操作时被防止。 防止低扭矩电机失速。 可选择的串联/并联电路增强了车辆功率的利用率。

公开(公告)号：US4257311A

公开(公告)日：1981-03-24

申请号：US43862

申请日：1979-05-29

申请人： Michael P. Barnsley ,  Edward S. Eccles ,  Ralph Taylor

发明人： Michael P. Barnsley ,  Edward S. Eccles ,  Ralph Taylor

IPC分类号： G05D1/00 ,  F15B9/03 ,  F15B9/09 ,  F15B13/06

CPC分类号： G05D1/0077

摘要： A hydraulic control system has two fluid supply circuits which control fluid pressure supplied to respective chambers of a fluid-controlled actuator, each chamber having an individual piston mounted on a common actuator rod. In normal operation, a major part of the pressure is supplied to the actuator by the first circuit in accordance with control signals derived from an external source. The second circuit supplies pressure to its respective chamber at a lower level in accordance with control signals derived from the differential pressure across the piston in that chamber, the pressure supplied by the second circuit acting to reduce the differential pressure across the piston. The system also includes a control unit that responds to malfunction of the first circuit or error in the control signals supplied to the first circuit, by disconnecting the first control circuit from control of the actuator, such as by equalizing pressure across the piston in the first chamber. Upon detection of a malfunction or error, the control unit also supplies to the second circuit, instead of the signals derived from the differential pressure, control signals nominally-identical to the control signals supplied to the first circuit and derived from an external source. In this way, following detection of a malfunction in the first circuit, the second circuit controls the major part of the pressure supplied to the actuator.

摘要翻译： 液压控制系统具有两个流体供应回路，其控制提供给流体控制致动器的各个腔室的流体压力，每个腔室具有安装在公共致动器杆上的单个活塞。 在正常操作中，根据源自外部源的控制信号，通过第一电路将大部分压力提供给致动器。 第二回路根据从该腔室中的活塞两端的差压导出的控制信号在较低的水平位置向其相应的腔室供应压力，由第二回路提供的压力用于减小活塞两端的差压。 该系统还包括控制单元，其响应于第一电路的故障或提供给第一电路的控制信号的错误，通过将第一控制电路与致动器的控制断开连接，例如通过使第一电路中的第一电路的活塞的压力平衡 房间。 在检测到故障或误差时，控制单元也将来自压差的信号代替与提供给第一电路并从外部源得到的控制信号名义上相同的控制信号，而将第二电路提供给第二电路。 以这种方式，在检测到第一电路中的故障之后，第二电路控制供应到致动器的压力的主要部分。