公开(公告)号：US4343152A

公开(公告)日：1982-08-10

申请号：US245230

申请日：1980-05-16

申请人： Cyril W. Habiger

发明人： Cyril W. Habiger

IPC分类号： E02F9/22 ,  F15B13/04 ,  F04B49/08

CPC分类号： F15B13/0417 ,  E02F9/2225 ,  Y10T137/87185

摘要： Fluid control circuits employed on construction vehicles to control the actuation of various work cylinders oftentimes include a system for sensing the fluid pressure in the cylinder and communicating such fluid pressure to a control device in signal form to closely control the displacement of a pump, the flow capacity of a pressure compensated flow control valve, or the like. The sensing system is normally associated with the spool of a directional control valve which must travel a substantial distance to effect extension or retraction of the cylinder and normally requires an "anti-rotation" device to insure proper alignment of the various ports and passages. Conventional high pressure systems of this type also pose potential leakage problems.This invention overcomes such problems by providing an improved load sensing system (45) including an annular land (32) defined on a spool (26) of a control valve (23) and an annulus (46) disposed axially between first (36) and second (37) outlets of the control valve (23) and further disposed to circumvent the land (32) of the spool (26).

摘要翻译： PCT No.PCT / US80 / 00579 Sec。 371日期1980年5月16日 102（e）日期1980年5月16日PCT提交日期1980年5月16日PCT公布。 出版物WO81 / 03362 日期：1981年11月26日。施工车辆用于控制各种工作缸的致动的流体控制回路通常包括用于感测气缸中的流体压力并将该流体压力以信号形式传送到控制装置的系统，以密切控制 泵的位移，压力补偿流量控制阀的流量等。 感测系统通常与方向控制阀的阀芯相关联，该阀芯必须行进相当长的距离以实现气缸的延伸或缩回，并且通常需要“防旋转”装置，以确保各种端口和通道的适当对准。 这种常规的高压系统也构成潜在的泄漏问题。 本发明通过提供一种改进的负载感测系统（45）来克服这些问题，该负载感测系统（45）包括限定在控制阀（23）的阀芯（26）上的环形平台（32）和沿轴向设置在第一（36）和 控制阀（23）的第二（37）出口，并进一步设置成围绕卷轴（26）的平台（32）。

公开(公告)号：US4301835A

公开(公告)日：1981-11-24

申请号：US107475

申请日：1979-12-26

申请人： Cyril W. Habiger

发明人： Cyril W. Habiger

IPC分类号： F16H61/40 ,  F16H61/4052 ,  F16H61/46 ,  F15B13/02

CPC分类号： F16H61/46 ,  F16H61/4052 ,  Y10T137/87169 ,  Y10T137/87917

摘要： A speed control and transmission vent valve (10) includes a first valve (12), a second valve (14) having first (64) and second inlets (66), an openable outlet (70) and a spool (62 or 62') movable in response to fluid in the inlets (64,66) between first, second and third positions, a passage (112) connecting the first valve (12) to the first inlet (64), and two-state switch means (16) for communicating fluid in the passage (112) to the second inlet (66) in response to one state of the switch means (16) to move the spool (62 or 62') from the first to the second position and for communicating fluid in the passage (112) to the first inlet (64) in response to a second state of the switch means (16) to move the spool (62 or 62') from the second position to the third position in which a fluid control signal is generated. The speed control and transmission vent valve (10) can be used in a tractor having a hydrostatic transmission, and is directed to reducing the operator skill and control needed to actuate the transmission to move the vehicle.

摘要翻译： 速度控制和传输通风阀（10）包括第一阀（12），具有第一阀（64）和第二入口（66）的第二阀（14），可开启的出口（70）和阀芯（62或62' ）可响应于第一，第二和第三位置之间的入口（64,66）中的流体而运动，连接第一阀（12）到第一入口（64）的通道（112）和两状态开关装置 ），用于响应于所述开关装置（16）的一个状态将所述通道（112）中的流体连通到所述第二入口（66），以使所述阀芯（62或62'）从所述第一位置移动到第二位置并且用于使流体 在所述通道（112）中响应于所述开关装置（16）的第二状态到所述第一入口（64），以使所述线轴（62或62'）从所述第二位置移动到所述第三位置，在所述第三位置中， 被生成。 速度控制和传输排气阀（10）可以用在具有静液压传动的拖拉机中，并且旨在降低操作者的技术和控制以驱动变速器以使车辆移动所需的操作。

公开(公告)号：US4109540A

公开(公告)日：1978-08-29

申请号：US809727

申请日：1977-06-24

申请人： Cyril W. Habiger

发明人： Cyril W. Habiger

IPC分类号： G05G7/04 ,  F16H21/44

CPC分类号： G05G7/04 ,  Y10T74/18856 ,  Y10T74/20006 ,  Y10T74/20558

摘要： An output shaft is rotatably mounted on a stationary support to selectively actuate a control valve of a hydrostatic transmission. A pair of levers are pivotally mounted on the output shaft in scissored relationship thereon and an actuating arm is rotatably mounted on the support to engage camming surfaces defined on first ends of the levers. A drive pin is secured to the output shaft to have opposite ends thereof engage bearing surfaces defined on second ends of the levers whereby swinging movements of the actuating arm in opposite directions will alternately transmit pivotal movements of the levers to the output shaft to control actuation of the control valve. The second ends of the levers are biased away from each other by a coil spring to normally engage the bearing surfaces with the drive pin.

摘要翻译： 输出轴可旋转地安装在静止支撑件上以选择性地致动静压传动的控制阀。 一对杠杆以其剪切关系枢转地安装在输出轴上，并且致动臂可旋转地安装在支撑件上以接合限定在杠杆的第一端上的凸轮表面。 驱动销被固定到输出轴，以使其相对的端部接合限定在杠杆的第二端上的轴承表面，由此致动臂沿相反方向的摆动运动将交替地将杠杆的枢转运动传递到输出轴，以控制致动 控制阀。 杠杆的第二端通过螺旋弹簧彼此偏离，以使驱动销正常地接合支承表面。

公开(公告)号：US4097196A

公开(公告)日：1978-06-27

申请号：US692178

申请日：1976-06-01

申请人： Cyril W. Habiger

发明人： Cyril W. Habiger

IPC分类号： F04B1/32 ,  F04B49/08 ,  F04B1/30

CPC分类号： F04B1/324 ,  F04B49/08

摘要： The invention is concerned with an improvement in a pump having a pump body, a swash plate the rotational position of which controls the displacement of the pump and means mounting the swash plate for rotation about an axis generally centrally thereadjacent. The improvement serves to control the pump output. In a broad sense, the improvement comprises means internal of said pump body and acting between said pump body and said swash plate for biasing the swash plate towards a zero displacement position corresponding to a minimum displacement of the pump, and means responsive to discharge pressure of the pump reaching a first magnitude for overriding the biasing means and rotating the swash plate towards a full displacement position corresponding to a maximum displacement of the pump said overriding means comprising servo valve means within said pump body and pilot pump means acting to initially shift said servo valve means to allow discharge pressure to be applied in opposition to said biasing means.

摘要翻译： 本发明涉及一种具有泵体的泵的改进，其中旋转斜盘控制泵的位移，以及安装旋转斜盘的装置，该旋转斜盘可绕轴线大致中心地旋转。 该改进用于控制泵输出。 在广义上，改进包括所述泵体内部的装置，并且在所述泵体和所述斜盘之间作用，用于将所述斜盘偏压到对应于所述泵的最小位移的零位移位置，以及响应于所述泵体的排出压力的装置 所述泵达到第一大小以超越所述偏压装置并且使所述斜盘朝向对应于所述泵的最大位移的完全位移位置旋转，所述超控装置包括位于所述泵体内的伺服阀装置，并且所述先导泵装置用于起动所述伺服 阀装置，以允许与所述偏置装置相对地施加排放压力。

公开(公告)号：US4036321A

公开(公告)日：1977-07-19

申请号：US663595

申请日：1976-03-03

申请人： Cyril W. Habiger

发明人： Cyril W. Habiger

IPC分类号： B62D1/12 ,  B60K20/02 ,  B62D11/02 ,  B62D11/04

CPC分类号： B62D11/02 ,  Y10T74/20201

摘要： A control for selectively controlling operation of left and right side drives for providing a selective steering drive of a vehicle. The control includes a single manually operable control lever and mounting structure for transmitting selective movement of the control lever through suitable push-pull linkages to the vehicle drives. The control is arranged to effect a change in the gain of output lever portions thereof in effecting the desired controlled steering operation of the drives. The change in gain is controlled by the engagement of rollers associated with the control lever against output levers associated one each with the push-pull linkages and left and right side vehicle drives.

摘要翻译： 用于选择性地控制用于提供车辆的选择性转向驱动的左侧和右侧驱动器的操作的控制。 该控制器包括单个可手动操作的控制杆和安装结构，用于通过适当的推挽连杆传递控制杆的选择性运动到车辆驱动器。 该控制被布置成实现其输出杆部分的增益的变化，以实现驱动器的期望的受控转向操作。 增益的变化通过与控制杆相关联的辊与与推挽连杆和左右车辆驱动器相关联的输出杆的啮合来控制。

公开(公告)号：US3996743A

公开(公告)日：1976-12-14

申请号：US551809

申请日：1975-02-20

申请人： Cyril W. Habiger ,  William J. Spivey

发明人： Cyril W. Habiger ,  William J. Spivey

IPC分类号： B60K17/10 ,  B62D11/18 ,  F16H61/433 ,  F16H39/46

CPC分类号： F16H61/433 ,  B62D11/183

摘要： A hydrostatic unit of the type contemplated by the present invention includes one or more pump and motor combinations interconnected by means of a conventional closed loop. Controls for the hydrostatic unit include a speed control and vent valve assembly as well as a venturi manifold which functions to normally establish a selected pressure differential in a pair of supply conduits for determining instant operating conditions for the transmission. In order to automatically regulate displacement of each pump unit in response to prime mover speed, an underspeed actuator valve unit includes a piston which is hydraulically responsive to the differential pressure in order to adjust operation of a lever which controls displacement of the pump unit. A part throttle control valve prevents the underspeed actuator from reducing displacement of the pump unit when speed of the prime mover is reduced by a manual throttle control.

摘要翻译： 本发明预期类型的​​静液压单元包括通过常规闭环相互连接的一个或多个泵和马达组合。 用于静液压单元的控制器包括速度控制和排气阀组件以及文丘里歧管，其功能是在一对供应管道中正常建立选定的压力差，以确定变速器的瞬时操作条件。 为了根据原动机速度自动调节每个泵单元的位移，低速致动器阀单元包括一个活塞，该活塞对液压进行液压响应，以调整控制泵单元的位移的杠杆的操作。 当手动节气门控制减少原动机的速度时，部件节气门控制阀防止欠速致动器减小泵单元的位移。

公开(公告)号：US4213484A

公开(公告)日：1980-07-22

申请号：US910250

申请日：1978-05-30

申请人： Cyril W. Habiger

发明人： Cyril W. Habiger

IPC分类号： B62D11/18 ,  G05G9/10 ,  F16K11/18

CPC分类号： B62D11/183 ,  G05G9/10 ,  Y10T137/87064 ,  Y10T137/87072 ,  Y10T74/20201

摘要： A control apparatus has a single control handle, first and second work elements, and first and second ramps each contacting a respective work element. Apparatus is further provided for selectively, progressively pivoting only one of the ramps in response to controllably moving the single control handle. One of the ramps pivotally moves in response to moving the handle in a first plane to a first position and in a different second plane from a first toward a second position. The other ramp pivotally moves in response to moving the handle in the first plane to a second position and in a different third plane from a first toward a second position. Respective work elements are thereby moved between a plurality of positions for controlling an operation such as the flow of fluid through associated, respective valves.

摘要翻译： 控制装置具有单个控制手柄，第一和第二工作元件，以及每个接触相应工作元件的第一和第二斜面。 进一步提供装置，以响应于可控地移动单个控制手柄而选择性地逐渐地仅枢转一个斜面。 响应于将手柄在第一平面中移动到第一位置和在从第一位置到第二位置的不同的第二平面中，其中一个斜面可枢转地移动。 响应于将手柄在第一平面中移动到第二位置并且在从第一位置到第二位置的不同的第三平面中，另一斜面可旋转地移动。 因此，各工作元件在多个位置之间移动，用于控制诸如通过相关联的各个阀的流体流动的操作。

公开(公告)号：US4096694A

公开(公告)日：1978-06-27

申请号：US813029

申请日：1977-07-05

申请人： Cyril W. Habiger ,  Leon E. Hicks

发明人： Cyril W. Habiger ,  Leon E. Hicks

IPC分类号： B62D11/18 ,  F04B49/00 ,  F16H61/42 ,  F16H61/423 ,  F16H61/456 ,  F16H61/46 ,  F15B15/18 ,  F15B11/16

CPC分类号： F16H61/456 ,  B62D11/183 ,  F04B49/002 ,  F16H61/423 ,  F16H61/46

摘要： A fluid drive assembly has a pump, a variable displacement motor, a fluid circuit connecting the pump to the motor, and an actuator device for controlling the displacement of the motor. The actuator device is movable between a first position at which the displacement of the motor is at a preselected maximum and a second position at which the displacement of the motor is at a preselected minimum. A control system for the fluid drive assembly includes a source of fluid at a first preselected pressure value. A valve device is connected to the source of fluid and to the actuator device for controlling the fluid flow therebetween and is movable between a first position at which the source of fluid is in communication with the actuator device and a second position at which the source of fluid is blocked from communication with the actuator device. A first device automatically moves the valve device to the second position in response to the fluid pressure in the fluid circuit exceeding a second preselected pressure level. A second device retains the valve device in the first position until the fluid pressure in the fluid circuit decreases from the second preselected pressure level to a third preselected pressure level.

摘要翻译： 流体驱动组件具有泵，可变排量马达，将泵连接到马达的流体回路以及用于控制马达的位移的致动器装置。 致动器装置可以在电动机的位移处于预定最大值的第一位置和电动机的位移处于预先选择的最小值的第二位置之间移动。 用于流体驱动组件的控制系统包括处于第一预选压力值的流体源。 阀装置连接到流体源和致动器装置，用于控制流体之间的流体流动，并且可以在流体源与致动器装置连通的第一位置和第二位置之间移动，在第二位置， 流体被阻止与致动器装置的连通。 第一装置响应于流体回路中的流体压力超过第二预选压力水平自动地将阀装置移动到第二位置。 第二装置将阀装置保持在第一位置，直到流体回路中的流体压力从第二预选压力水平降低到第三预选压力水平。

公开(公告)号：US4093092A

公开(公告)日：1978-06-06

申请号：US669936

申请日：1976-03-24

申请人： Cyril W. Habiger ,  Tom E. Robinson

发明人： Cyril W. Habiger ,  Tom E. Robinson

IPC分类号： B66F9/22 ,  B66F17/00 ,  F15B11/16 ,  F15B20/00 ,  B66F9/20

CPC分类号： B66F17/003

摘要： The invention is concerned with an improvement in a load lifting apparatus which comprises a primary load member pivotally mounted about a generally horizontal axis on a frame, a tilt cylinder and a tilt piston movable relative to one another pivotally connected to the frame and the primary load member to provide impetus for pivotal movement therebetween, a secondary load member movable relative to the primary load member, a lift cylinder and a lift piston movable relative to one another connected to the primary load member and the secondary load member to provide impetus for linear relative movement therebetween, tilt cylinder valve means for controlling flow of pressurized fluid from pump means to the tilt cylinder and lift cylinder valve means for controlling flow of pressurized fluid from the pump means to the lift cylinder. The improvement of the invention provides protection which prevents the apparatus from overbalancing. The improvement operates by sensing a moment created by a load on the apparatus. Most particularly, the improvement comprises a valve sensing simultaneously a lift pressure force proportional to a lift pressure in a head end of the lift cylinder and a tilt pressure force proportional to a tilt pressure in a rod end of the tilt cylinder. The valve blocks flow of pressurized fluid from the tilt cylinder to the tilt cylinder valve means and from the lift cylinder valve means to the lift cylinder responsive to the greater of the lift pressure force and the tilt pressure force exceeding a predetermined value. The improvement of the present invention is particularly useful in the lift trucks wherein the primary load member is a lift truck mast and the secondary load member is the forks of a lift truck.

摘要翻译： 本发明涉及一种负载提升装置的改进，该负载提升装置包括主要负载构件，其围绕框架上的大致水平的轴线枢转地安装，倾斜气缸和倾斜活塞可相对于彼此枢转地连接到框架和主负载 以提供其间的枢转运动的动力，可相对于主负载构件移动的次级负载构件，提升缸和可相对于彼此连接的连接到主负载构件和次级负载构件的提升活塞，以提供用于线性相对的动力 用于控制从泵装置到倾斜缸的加压流体的流动的倾斜缸阀装置和用于控制加压流体从泵装置到提升缸的提升缸阀装置。 本发明的改进提供了防止装置过度平衡的保护。 该改进通过感测由装置上的负载产生的时刻来进行。 特别地，改进包括阀同时检测与提升缸的头端中的提升压力成比例的升力压力和与倾斜缸的杆端中的倾斜压力成比例的倾斜压力。 该阀阻止加压流体从倾斜气缸到倾斜气缸阀装置的流动，并且响应于升高压力和倾斜压力超过预定值的较大值，从提升缸阀装置到提升缸。 本发明的改进在起重车中特别有用，其中主负载构件是升降车桅杆，而次级装载构件是叉车的叉子。

公开(公告)号：US3952515A

公开(公告)日：1976-04-27

申请号：US551465

申请日：1975-02-20

申请人： Cyril W. Habiger ,  William D. McMillan ,  David L. Persson ,  Glenn E. Ferre, deceased

发明人： Cyril W. Habiger ,  William D. McMillan ,  David L. Persson ,  Glenn E. Ferre, deceased

IPC分类号： B60K17/10 ,  F16H61/42 ,  F16H61/433 ,  F16H61/46 ,  F16H61/465 ,  F16H39/46

CPC分类号： F16H61/465 ,  F16H61/433

摘要： A hydrostatic unit of the type contemplated by the present invention includes one or more pump and motor combinations interconnected by means of a conventional closed loop. Controls for the hydrostatic unit include a speed control and vent valve assembly as well as a venturi manifold which functions to normally establish a selected pressure differential in a pair of supply conduits. In order to automatically regulate displacement of each pump unit in response to both engine or prime mover speed and instant load conditions, an underspeed actuator valve unit is hydraulically responsive to the differential pressure in the two conduits and also to changes in output pressure developed by the pump unit.

摘要翻译： 本发明预期类型的​​静液压单元包括通过常规闭环相互连接的一个或多个泵和马达组合。 用于静液压单元的控制器包括速度控制和排气阀组件以及文丘里歧管，其功能是在一对供应管道中正常建立选定的压力差。 为了根据发动机或原动机速度和瞬时负载条件来自动调整每个泵单元的位移，低速致动器阀单元对两个管道中的压差进行液压响应，并且还响应于由 泵单元。