公开(公告)号：US4455770A

公开(公告)日：1984-06-26

申请号：US395576

申请日：1982-07-06

申请人： Glen T. Presley

发明人： Glen T. Presley

IPC分类号： E02F5/02 ,  E02F5/06 ,  E02F5/14 ,  E02F9/22

CPC分类号： E02F9/2246 ,  E02F5/145 ,  E02F9/2292

摘要： An automatic horsepower control system on a working vehicle which varies the vehicle drive speed so as to maintain a maximum torque output on the working function of the vehicle. The prime mover of the vehicle drives the work function and also a pump which in turn supplies motordriven wheels for moving the vehicle. A stroker control cylinder controlled by a solenoid operated valve varies the pump flow rate to the motor to change vehicle speeds, said solenoid operated valve being signaled by an electronic controller which compares the prime mover's RPM with a standard to determine the torque load from the work function, and accordingly signals the valve to increase or decrease the flow to the motor to adjust vehicle speed and maintain a constant work load on the prime mover.

摘要翻译： 一种工作车辆上的自动马力控制系统，其改变车辆驱动速度，以保持对车辆的工作功能的最大扭矩输出。 车辆的原动机驱动工作功能，还有一个泵，它又提供用于移动车辆的驱动轮。 由电磁阀控制的冲击控制气缸使泵的流量变化到电动机以改变车速，所述电磁阀由电子控制器发出信号，该电子控制器将原动机的RPM与标准进行比较以确定来自工作的扭矩负载 功能，因此信号阀增加或减少到电动机的流量，以调整车速并保持原动机上的恒定工作负荷。

公开(公告)号：US4744285A

公开(公告)日：1988-05-17

申请号：US24021

申请日：1987-03-10

申请人： Glen T. Presley

发明人： Glen T. Presley

IPC分类号： A01B69/02 ,  A01C7/08 ,  F15B11/20 ,  F15B13/07 ,  F15B11/00

CPC分类号： A01B69/024 ,  F15B11/20 ,  Y10T137/86413 ,  Y10T137/86445

摘要： An automatic, hydraulically actuated, sequencing valve for use with a pair of hydraulic acutators (e.g. double acting hydraulic cylinders) includes a valve body having a cylindrical bore therein. Cam members at either end of the bore are engaged by pins on the ends of a cylindrical spool, thereby rotating the spool 30.degree. each time it engages one of the cam members. A third cam member incorporated into the spool alternately locks open one of a pair of check valves as said spool is pressure shifted between the two bore cam members. The third cam member operates a locking system which permits only one of the two hydraulic cylinders to operate at a time and in sequence.

公开(公告)号：US4383412A

公开(公告)日：1983-05-17

申请号：US85884

申请日：1979-10-17

申请人： Glen T. Presley

发明人： Glen T. Presley

IPC分类号： F15B11/16 ,  F15B11/17 ,  F15B13/09

CPC分类号： F16H61/4078 ,  F15B11/165 ,  F15B11/17 ,  F16H61/448 ,  F15B2211/20538 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/255 ,  F15B2211/30505 ,  F15B2211/30515 ,  F15B2211/30525 ,  F15B2211/3116 ,  F15B2211/3144 ,  F15B2211/31576 ,  F15B2211/327 ,  F15B2211/40507 ,  F15B2211/41572 ,  F15B2211/50536 ,  F15B2211/5157 ,  F15B2211/528 ,  F15B2211/57 ,  F15B2211/6052 ,  F15B2211/6054 ,  F15B2211/7135

摘要： A load responsive system employing a fixed displacement pump and a variable displacement pump in a parallel circuit as a source of fluid in an open-center load sensing system. The load response control valve includes an unloading spool which is flow responsive in the operative positions of the control valve and maintains a constant .DELTA..rho. across the control valve by dumping the pump flow to reservoir; the control valve .DELTA..rho. being greater than the .DELTA..rho. of the pump compensator means so that the variable displacement pump will remain destroked until the system utilizes the full flow of the fixed displacement pump at which time the variable displacement pump strokes-out upon demand.

摘要翻译： 一种负载响应系统，其采用位于开放中心负载感测系统中的并联电路中的固定排量泵和可变排量泵作为流体源。 负载响应控制阀包括卸载卷轴，其在控制阀的操作位置处流动响应，并且通过将泵流倾倒到储存器来保持横跨控制阀的恒定DELTA rho; 控制阀DELTA rho大于泵补偿器装置的DELTA rho，使得可变排量泵将保持破坏，直到系统利用固定排量泵的全流量，此时可变排量泵根据需要冲出。

公开(公告)号：US4430846A

公开(公告)日：1984-02-14

申请号：US339483

申请日：1982-01-15

申请人： Glen T. Presley ,  Lloyd L. Lautzenhiser

发明人： Glen T. Presley ,  Lloyd L. Lautzenhiser

IPC分类号： A01D41/127 ,  A01D69/00

CPC分类号： A01D41/1274 ,  Y10S56/15 ,  Y10T137/2587

摘要： The present invention provides an electrohydraulic control, which includes both an electrohydraulic valve (36) and an electronic control (382). The electronic control includes an offsetting circuit (622) and is effective to produce an effective driving voltage, for an electrical force-motor (52) of the electrohydraulic valve, that is pulse-width-modulated and that is greater than a fixed proportionality to an input signal (410) by a manually adjustable offset voltage. The offset voltage may be adjusted to produce a null force that exactly balances a spring (129) which presses the valve spool (54) to an overlapped position; so that fluid flow is proportional to an input signal irrespective of the initial load of the spring. When used in conjunction with a ground-speed sensor (380) to control the reel drive on an agricultural harvesting machine, the offset voltage is set higher than a null voltage; so that the resultant rate of fluid flow produces a tangential velocity of the reel that is always greater than the ground speed of the machine.

摘要翻译： 本发明提供一种电动液压控制装置，其包括电动液压阀（36）和电子控制装置（382）。 电子控制包括偏移电路（622），并有效地产生用于电动液压阀的电动机（52）的有效驱动电压，其被脉冲宽度调制并且大于与 通过手动调节的偏移电压的输入信号（410）。 可以调整偏移电压以产生将压力将阀芯（54）压紧到重叠位置的弹簧（129）的零力; 使得流体流动与输入信号成比例，而与弹簧的初始载荷无关。 当与地面速度传感器（380）一起使用以控制农业收割机上的卷轴驱动时，偏移电压被设置为高于零电压; 使得所得到的流体流动速率产生总是大于机器的地面速度的卷轴的切向速度。

公开(公告)号：US4337587A

公开(公告)日：1982-07-06

申请号：US139864

申请日：1980-04-14

申请人： Glen T. Presley

发明人： Glen T. Presley

IPC分类号： E02F5/02 ,  E02F5/06 ,  E02F5/14 ,  E02F9/22

CPC分类号： E02F9/2292 ,  E02F5/145 ,  E02F9/2246

摘要： An automatic horsepower control system on a working vehicle which varies the vehicle drive speed so as to maintain a maximum torque output on the working function of the vehicle. The prime mover of the vehicle drives the work function and also a pump which in turn supplies motor-driven wheels for moving the vehicle. A servo-control valve varies the pump flow to the motor to change vehicle speeds, said valve being signaled by an electronic controller which compares the prime mover's RPM with a standard to determine the torque load from the work function, and accordingly signals the valve to increase or decrease the flow to the motor to adjust vehicle speed and maintain a constant work load on the prime mover.

摘要翻译： 一种工作车辆上的自动马力控制系统，其改变车辆驱动速度，以保持对车辆的工作功能的最大扭矩输出。 车辆的原动机驱动工作功能，还有一个泵，该泵依次提供用于移动车辆的电动车轮。 伺服控制阀改变到电动机的泵流量以改变车速，所述阀由电子控制器发出信号，该电子控制器将原动机的RPM与标准进行比较，以确定来自功函数的转矩负载，并因此将阀信号通过 增加或减少到电动机的流量，以调整车速并在原动机上保持恒定的工作负荷。

公开(公告)号：US06662970B1

公开(公告)日：2003-12-16

申请号：US09685178

申请日：2000-10-11

申请人： Glen T. Presley

发明人： Glen T. Presley

IPC分类号： B67D508

CPC分类号： F01M13/00

摘要： An on demand oil dispensing system for motor vehicles including an electric motor driving a gear pump having flow paths including an intake line connected to an oil reservoir and a discharge line having a manual shut-off valve at the end thereof and a pressure sensing switch positioned in the discharge line which cuts off power to the motor and pump when the pressure in the discharge line rises above a set level and a reverse flow check valve in the discharge line upstream of the pressure sensing switch.

摘要翻译： 一种用于机动车辆的按需油分配系统，包括驱动齿轮泵的电动机，该齿轮泵具有包括连接到储油器的进气管线和具有在其端部处的手动截止阀的排出管路的流路，以及定位的压力感测开关 在排出管线中，当排出管线中的压力上升到设定水平以上时，在压力感测开关上游的排出管路中的逆流止回阀切断电动机和泵的动力。

公开(公告)号：US4510963A

公开(公告)日：1985-04-16

申请号：US553561

申请日：1983-11-21

申请人： Glen T. Presley ,  Lloyd L. Lautzenhiser

发明人： Glen T. Presley ,  Lloyd L. Lautzenhiser

IPC分类号： A01D41/127 ,  G05D11/12 ,  G05D16/20

CPC分类号： A01D41/1274 ,  Y10T137/2524 ,  Y10T137/2589 ,  Y10T137/7788

摘要： The present invention provides a proportional-flow electrohydraulic control which includes both an electrohydraulic valve (36) and an electronic control (382). The electronic control includes an offsetting circuit (622) and is effective to produce an effective driving voltage, for an electrical force-motor (52) of the electrohydraulic valve, that is pulse-width modulated and that is greater than a fixed proportionality to an input signal (410) by a manually adjustable offset voltage. The offset voltage may be adjusted to provide a null force that exactly balances a spring (129) which presses a valve spool (54) to an overlapped position; so that fluid flow is proportional to an input signal irrespective of the initial load of the spring. Or, the offset voltage may be adjusted to provide a basic flow voltage; and then the rate of fluid flow that is delivered by the valve is greater than a given proportionality to the input signal by a substantially constant rate of fluid flow.

摘要翻译： 本发明提供一种包括电动液压阀（36）和电子控制（382）的比例流动电液控制。 电子控制包括偏移电路（622），并有效地产生用于电动液压阀的电动力（52）的有效驱动电压，其被脉冲宽度调制并且大于与 输入信号（410）。 可以调整偏移电压以提供零位力，其将将阀芯（54）压紧到重叠位置的弹簧（129）精确平衡; 使得流体流动与输入信号成比例，而与弹簧的初始载荷无关。 或者，可以调整偏移电压以提供基本的流量电压; 然后由阀输送的流体流量大于通过基本上恒定的流体流量的与输入信号的给定比例。

公开(公告)号：US4236595A

公开(公告)日：1980-12-02

申请号：US067396

申请日：1979-08-17

申请人： Richard A. Beck ,  Glen T. Presley

发明人： Richard A. Beck ,  Glen T. Presley

IPC分类号： B60K6/00 ,  B60K17/356 ,  B60K25/04 ,  F16H39/46

CPC分类号： F16H61/472 ,  B60K17/356 ,  B60K6/00 ,  F16H2059/506 ,  Y10S60/911

摘要： An electro-hydraulic auxiliary drive system providing power to the non-driven steerable wheels of an agricultural tractor utilizing hydraulic power in a parallel circuit from a pressure compensated pump which varies torque supplied to the auxiliary system by sensing the relative speed between the front and rear wheels and increases the torque to the auxiliary system when a set percentage of slip is determined between the front and rear wheels. The steerable wheels are driven by hydraulic motors connected in parallel through a flow divider valve and supplied by a variable displacement pressure compensated pump. When the electronic control receives an indication of slip from the main drive wheels it energizes a solenoid causing the pressure compensation level of the variable displacement pump to increase the torque output of the auxiliary drive system, with the percentage of slip being proportional to the increased torque.

摘要翻译： 一种电动液压辅助驱动系统，其利用来自压力补偿泵的并联电路中的液压动力向农用拖拉机的非驱动转向轮提供动力，所述压力补偿泵通过感测前后相对速度而改变提供给辅助系统的转矩 车轮，并且当在前轮和后轮之间确定设定的滑差百分比时，增加对辅助系统的扭矩。 可转向轮由液压马达驱动，液压马达通过分流阀并联连接，并由可变排量压力补偿泵提供。 当电子控制器接收到来自主驱动轮的滑动指示时，它激励螺线管，使得可变排量泵的压力补偿水平增加辅助驱动系统的扭矩输出，滑移百分比与增加的扭矩成比例 。

公开(公告)号：US4385674A

公开(公告)日：1983-05-31

申请号：US217399

申请日：1980-12-17

申请人： Glen T. Presley

发明人： Glen T. Presley

IPC分类号： B62D5/093 ,  B62D5/08

CPC分类号： B62D5/093

摘要： A fluid control system for actuating a conventional power steering unit including a priority valve. The priority valve includes an inlet chamber connected to a pressure source, a priority outlet chamber connected to the steering unit, and a secondary outlet chamber connected to a secondary motor. The priority valve includes a valve spool slidable in a bore. One end of the bore with the spool forms a servo chamber which has a compression spring which urges the spool in one direction, and the other end of the bore and spool forms a servo chamber which acts in opposition to the first servo chamber. Each servo chamber is connected to the inlet pressure through an orifice in the valve spool which results in a rapid response time for moving the valve spool since the fluid travels only a short distance and since the fluid circulates it remains hot. There is a small logic control circuit flow across the priority valve and the steering valve for the steering unit. The logic flow passes across an orifice in the valve spool into the servo chamber with the compression spring, then across a second orifice before it flows into the steering flow downstream of a variable orifice in the steering valve. By reason of the two orifices in series, the spool of the priority valve can use a lower spring rate since a majority of the pressure drop will be taken downstream of the steering unit variable orifice.

摘要翻译： 一种用于致动包括优先阀的常规动力转向单元的流体控制系统。 优先阀包括连接到压力源的入口室，连接到转向单元的优先出口室，以及连接到次级电动机的次级出口室。 优先阀包括可在孔中滑动的阀芯。 具有阀芯的孔的一端形成伺服室，其具有沿一个方向推压阀芯的压缩弹簧，孔和阀芯的另一端形成与第一伺服室相对作用的伺服室。 每个伺服室通过阀芯中的孔连接到入口压力，这导致用于移动阀芯的快速响应时间，因为流体行进只有很短的距离，并且由于流体循环它保持热。 优先阀和转向装置的转向阀有一个小的逻辑控制电路。 逻辑流程通过压缩弹簧穿过阀芯中的孔口进入伺服室，然后在流入转向阀中可变孔口下游的转向流中之前穿过第二孔口。 由于两个孔串联，优先阀的阀芯可以使用较低的弹簧速率，因为大部分压降将被引导到转向单元可变孔的下游。

公开(公告)号：US4295539A

公开(公告)日：1981-10-20

申请号：US100426

申请日：1979-12-05

申请人： Richard A. Beck ,  Glen T. Presley

发明人： Richard A. Beck ,  Glen T. Presley

IPC分类号： B60K17/356 ,  B60K25/00 ,  F16H61/4148 ,  F16H61/456 ,  F16H61/46 ,  F16H61/465 ,  B60K25/04

CPC分类号： F16H61/4148 ,  B60K17/356 ,  B60K25/00 ,  F16H61/456 ,  F16H61/465 ,  B60Y2200/221

摘要： A hydraulic auxiliary drive system for the normally non-driven wheels of a vehicle to assist the main wheels. The auxiliary drive comprises at least one variable displacement motor having a swash plate for driving at least one of the non-driven wheels, a variable displacement pressure compensated pump supplying the motor with a constant pressure regardless of vehicle speed, a spring for biasing each motor swash plate toward zero displacement, a servo connected to the motor swash plate for varying the displacement of the motor, and a pressure source for supplying the servo. A manually operated pressure control includes a solenoid-controlled variable orifice for controlling the pressure level supplied to the servo to vary the torque output of the normally non-driven wheels. A control valve is positioned between the pump and motor for disengaging and reversing the auxiliary drive. Another embodiment includes a second servo connected to the motor swash plate for decreasing the motor displacement. A pressure operated valve is located in a sensing passage connecting the pump outlet with the second servo and has a first position blocking pump pressure to the servo at all levels above the pressure compensating level of the pump, and a second position opening pump pressure to the second servo at a preset pressure level below the compensating level whereby when the pump reaches full stroke and is unable to maintain its compensating level, the valve opens causing the motor displacement to decrease.

摘要翻译： 一种用于车辆的正常非从动轮的液压辅助驱动系统，用于辅助主轮。 辅助驱动器包括至少一个可变排量马达，其具有用于驱动非从动轮中的至少一个的斜盘;可变排量压力补偿泵，无论车速如何，都向马达提供恒定的压力;弹簧，用于偏置每个马达 斜盘朝向零位移，伺服连接到马达斜盘以改变马达的位移，以及用于供应伺服的压力源。 手动操作的压力控制包括电磁控制的可变孔口，用于控制提供给伺服器的压力水平以改变正常非从动轮的扭矩输出。 控制阀位于泵和马达之间，用于分离和反向辅助驱动。 另一实施例包括连接到马达斜盘的第二伺服器，用于减小马达位移。 压力操作阀位于连接泵出口与第二伺服器的感测通道中，并且具有在泵的压力补偿水平以上的所有水平处阻止泵送到伺服机构的泵压力的第一位置，以及第二位置打开泵压力 第二伺服在低于补偿水平的预设压力水平，由此当泵达到全行程并且不能保持其补偿水平时，阀打开，导致电动机位移减小。