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公开(公告)号：US3739690A
公开(公告)日：1973-06-19
申请号：US3739690D
申请日：1971-07-19
Applicant: CATERPILLAR TRACTOR CO
Inventor： CRYDER J
IPC: F15B11/08 , F15B13/042
CPC classification number: F15B11/08 , F15B2211/3057 , F15B2211/329 , F15B2211/40546 , F15B2211/41572 , F15B2211/428 , F15B2211/455 , F15B2211/46 , F15B2211/50536 , F15B2211/5157 , F15B2211/528 , F15B2211/5753 , F15B2211/635
Abstract: An implement hydraulic circuit including a pilot operated flow amplifier directional valve for controlling communication between a source of primary actuating fluid and a hydraulic motor. A pair of valve spools in the valve provide separate regulated flow paths for an inlet passage and an outlet passage respectively with a pair of work ports. An actuating chamber is associated with one end of each of the spools and may each be selectively communicated with a separate source of pilot fluid for actuation of either of the spools to communicate the primary source with either side of the motor. The other spool is positioned by fluid displaced from the motor to communicate the displaced fluid to the outlet passage for return to a reservoir. The configuration of the spools and their arrangement in the valve provide a capability of metering flow from motor to reservoir to prevent overrunning of the motor.
Abstract translation: 一种工具液压回路，包括用于控制主致动流体源和液压马达之间的连通的先导式流量放大器换向阀。 阀门中的一对阀芯为分别具有一对工作端口的入口通道和出口通道提供单独的调节流路。 致动室与每个线轴的一端相关联，并且每个可以选择性地与独立的先导流体源连通，以致于任何一个线轴使主电源与电动机的任一侧相通。 另一个卷轴通过从马达移位的流体定位，以将排出的流体连通到出口通道以返回到储存器。 阀芯的配置及其在阀门中的布置提供了计量从马达到储油器的流量的能力，以防止马达过载。
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公开(公告)号：US3811363A
公开(公告)日：1974-05-21
申请号：US35919573
申请日：1973-05-10
Applicant: CATERPILLAR TRACTOR CO
Inventor： CRYDER J
CPC classification number: F15B13/022 , Y10T137/2617
Abstract: A priority system for series-type hydraulic circuits including a plurality of hydraulic work systems disposed in serial fluid communication with a source of fluid under pressure and a priority valve operatively associated with a supply line between two of the work systems operatively dividing them into upstream and downstream work systems and responsive to fluid pressure between the source and the upstream system in excess of a predetermined pressure level automatically to reduce pressure in the downstream work system and maintain a predetermined minimum pressure differential between the downstream and upstream systems when they are operated simultaneously to insure positive actuation of the upstream system.
Abstract translation: 一种用于串联式液压回路的优先系统，包括多个液压工作系统，其设置为与压力下的流体源串联流体连通，并且优选阀与两个工作系统之间的供应管线可操作地相关联，可操作地将其分为上游和 下游工作系统，并且自动地响应源和上游系统之间的流体压力超过预定压力水平以减少下游工作系统中的压力并且当它们同时操作时维持下游和上游系统之间的预定最小压力差 确保上游系统的正向致动。
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公开(公告)号：US3728941A
公开(公告)日：1973-04-24
申请号：US3728941D
申请日：1970-11-23
Applicant: CATERPILLAR TRACTOR CO
Inventor： CRYDER J
CPC classification number: F15B11/003 , F15B13/01 , F15B2211/20523 , F15B2211/30525 , F15B2211/31576 , F15B2211/324 , F15B2211/45 , F15B2211/46 , Y10T137/7792
Abstract: A fluid circuit includes a flow control valve comprising surge damping and counterbalance pressure control valves for controlling the actuation of a cylinder having the rod thereof operatively connected to an implement, such as a loader bucket lift arm. The counterbalance pressure control valve maintains a sufficiently high back pressure in the cylinder during the ''''hold'''' phase of loader operation to prevent the loader bucket from creeping downwardly. The surge damping valve co-operates with the latter valve to freely communicate pressurized fluid to the cylinder during the ''''raise'''' phase of loader operation and to automatically regulate return flow during the ''''lower'''' phase in direct proportion to the magnitude of load imposed on the cylinder rod by the loader bucket.
Abstract translation: 流体回路包括流量控制阀，其包括浪涌阻尼和平衡压力控制阀，用于控制具有操作地连接到诸如装载机铲斗提升臂的工具的杆的缸的致动。 在装载机操作的“保持”期间，平衡压力控制阀在气缸中保持足够高的背压，以防止装载机铲斗向下爬行。 浪涌阻尼阀与后者阀配合，在装载机操作的“提升”阶段期间将加压流体自由地连通到气缸，并在“较低”阶段自动调节返回流量，与负载强度的大小成正比 气缸杆由装载机铲斗。
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Patent Agency Ranking
公开(公告)号：US3851721A
公开(公告)日：1974-12-03
申请号：US34595273
申请日：1973-03-29
Applicant: CATERPILLAR TRACTOR CO
Inventor： COMER G , CRYDER J , WAGGONER J
CPC classification number: B60T13/18
Abstract: There is disclosed means to provide a supplemental supply of fluid under pressure for emergency use in the hydraulic system of a vehicle with a normal supply provided by an engine driven pump. Pressure for the supplemental system is provided by a simple system including wheel driven pump which is operative during forward movement of the vehicle thereby insuring hydraulic control in emergency situations such as engine and/or engine driven pump failure. During reverse movement of the vehicle, simple pressure valves prevent flow from the main system into the supplemental system but allow reverse circulation of fluid through the wheel driven pump, thereby preventing cavitation.
Abstract translation: 公开了一种用于在具有由发动机驱动的泵提供的正常供应的车辆的液压系统中提供压力下的补充流体供紧急使用的装置。 补充系统的压力由简单的系统提供，该系统包括在车辆向前运动期间操作的轮式驱动泵，从而在诸如发动机和/或发动机驱动的泵故障的紧急情况下确保液压控制。 在车辆的反向移动期间，简单的压力阀防止从主系统流入补充系统，但允许流体通过轮驱动泵的反向循环，从而防止气蚀。
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公开(公告)号：US3841345A
公开(公告)日：1974-10-15
申请号：US33045973
申请日：1973-02-07
Applicant: CATERPILLAR TRACTOR CO
Inventor： CRYDER J
CPC classification number: F15B11/08 , F15B2211/3057 , F15B2211/329 , F15B2211/40546 , F15B2211/41572 , F15B2211/428 , F15B2211/455 , F15B2211/46 , F15B2211/50536 , F15B2211/5157 , F15B2211/528 , F15B2211/5753 , F15B2211/635 , Y10T137/2554 , Y10T137/87201
Abstract: An implement hydraulic circuit including a pilot operated flow amplifier directional valve for controlling communication between a source of primary actuating fluid and a hydraulic motor. A pair of valve spools in the valve provide separate regulated flow paths for an inlet passage and an outlet passage respectively with a pair of work ports. An actuating chamber is associated with one end of each of the spools and may each be selectively communicated with a separate source of pilot fluid for actuation of either of the spools to communicate the primary source with either side of the motor. The other spool is positioned by fluid displaced from the motor to communicate the displaced fluid to the outlet passage for return to a reservoir. The configuration of the spools and their arrangement in the valve provide a capability of metering flow from motor to reservoir to prevent overrunning of the motor.
Abstract translation: 一种工具液压回路，包括用于控制主致动流体源和液压马达之间的连通的先导式流量放大器方向阀。 阀门中的一对阀芯为分别具有一对工作端口的入口通道和出口通道提供单独的调节流路。 致动室与每个线轴的一端相关联，并且每个可以选择性地与独立的先导流体源连通，以致于任何一个线轴使主电源与电动机的任一侧相通。 另一个卷轴通过从马达移位的流体定位，以将排出的流体连通到出口通道以返回到储存器。 阀芯的配置及其在阀门中的布置提供了计量从马达到储油器的流量的能力，以防止马达过载。
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公开(公告)号：US3856041A
公开(公告)日：1974-12-24
申请号：US41962573
申请日：1973-11-28
Applicant: CATERPILLAR TRACTOR CO
IPC: F16K17/26
CPC classification number: F16K17/26 , Y10T137/2617 , Y10T137/7777 , Y10T137/7841
Abstract: There is disclosed a valve assembly comprising an integral relief and make-up valve provided for use in hydraulic systems. The compact assembly comprises a reciprocal valve spool disposed between a fluid supply conduit and a fluid discharge conduit and relief valve means contained within the valve spool for relieving fluid pressure within the fluid supply conduit. The valve spool is responsive to pressure differentials within the system, permitting increased fluid flow from a fluid discharge conduit to the fluid supply conduit as required.
Abstract translation: 公开了一种阀组件，其包括设置用于液压系统的整体释放阀和补充阀。 紧凑组件包括设置在流体供应管道和流体排放管道之间的往复阀阀芯和容纳在阀阀芯内的安全阀装置，用于减轻流体供应管道内的流体压力。 阀芯对系统内的压力差进行响应，根据需要允许从流体排放管道向流体供应管道增加流体流量。
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公开(公告)号：US3795177A
公开(公告)日：1974-03-05
申请号：US3795177D
申请日：1971-11-04
Applicant: CATERPILLAR TRACTOR CO
IPC: F15B11/024 , F15B11/16 , F15B13/02
CPC classification number: F15B11/024 , F15B2011/0243 , F15B2211/30525 , F15B2211/3058 , F15B2211/3111 , F15B2211/3144 , F15B2211/31588 , F15B2211/324 , F15B2211/7128 , F15B2211/75
Abstract: A system having a manually operated control valve for directing pressurized fluid to a pair of fluid motors while receiving fluid discharged therefrom also has a fast motion valve for causing the motors to outrun the fluid supplied through the control valve by returning a portion of the discharged fluid directly to the motors. The circuit shifts to provide fast motion on detecting a predetermined flow rate between the control valve and the motors. As the operator can modulate this flow rate, the fast motion is always subject to operator control. To assure operator control under all conditions, the fast motion valve is spring biased to the unoperated position and return of a portion of the motor discharge flow to the control valve is a necessary condition for operation of the fast motion valve. The system is further arranged to prohibit fast motion, under any condition, during reversed motion of the motors.
Abstract translation: 具有用于将加压流体引导到一对流体马达同时接收从其排出的流体的手动控制阀的系统还具有快速运动阀，用于使马达超出通过控制阀供应的流体，通过返回一部分排出的流体 直接到电机。 在检测控制阀和电动机之间的预定流量时，电路移动以提供快速运动。 由于操作者可以调节此流速，因此快速运动始终受操作员的控制。 为了在所有条件下确保操作者的控制，快动阀被弹簧偏压到未操作位置，并且马达排出流的一部分返回到控制阀是快速运动阀的操作的必要条件。 该系统进一步布置成在马达的反向运动期间禁止任何条件下的快速运动。
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公开(公告)号：US3771310A
公开(公告)日：1973-11-13
申请号：US3771310D
申请日：1972-01-31
Applicant: CATERPILLAR TRACTOR CO
Inventor： CRYDER J , ERICKSON R , LOHBAUER K , SCHEIDT J
CPC classification number: F16H61/465 , F16H61/42
Abstract: A vehicle incorporating a pair of hydostatic transmissions in the drive train is provided with a control system that automatically proportions engine horsepower between vehicle drive and vehicle implements. The control system is responsive to engine speed which is proportional to engine load to control transmission output.
Abstract translation: 在传动系中装有一对水力传动装置的车辆设置有一个控制系统，其自动地比较车辆驱动和车辆工具之间的发动机功率。 控制系统响应于与发动机负载成比例的发动机转速来控制变速器输出。
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