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公开(公告)号：US20120124988A1
公开(公告)日：2012-05-24
申请号：US12953011
申请日：2010-11-23
IPC分类号： F16H39/00
CPC分类号： F16H61/4165 , F16H61/4035 , F16H61/4148 , F16H61/433
摘要： A hydraulic fan circuit is disclosed. The hydraulic fan circuit may have a primary pump, a motor, a fan connected to and driven by the motor, and a flywheel connected to and driven by one of the motor and the fan. The hydraulic fan circuit may also have a supply passage extending from the primary pump to the motor, a return passage extending from the motor to the primary pump, and a diverter valve configured to selectively connect the supply passage to a low-pressure sump.
摘要翻译： 公开了一种液压风扇电路。 液压风扇回路可以具有连接到马达和由马达驱动的主泵，马达，风扇，以及连接到马达和风扇之一并由其驱动的飞轮。 液压风扇回路还可以具有从初级泵延伸到马达的供给通道，从马达延伸到主泵的返回通道，以及配置成将供给通道选择性地连接到低压油槽的分流阀。
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公开(公告)号：US20120304631A1
公开(公告)日：2012-12-06
申请号：US13149161
申请日：2011-05-31
CPC分类号： B60W10/30 , B60K2025/026 , F01P7/044 , F15B7/005 , F15B7/008 , F15B2211/20523 , F15B2211/20553 , F15B2211/20569 , F15B2211/212 , F15B2211/613 , F15B2211/7058 , F16H61/4096 , F16H61/4148 , F16H61/438
摘要： A hydraulic fluid system for a mobile machine includes a closed loop hydraulic fan circuit. The hydraulic fan circuit includes a primary pump, a motor fluidly connected to the primary pump, and a fan driven by the motor. The hydraulic fan circuit also includes a supply passage extending from the primary pump to the motor, a return passage extending from the motor to the primary pump, and a first accumulator selectively fluidly connected to at least one of the supply and return passages via a charge valve. The hydraulic fluid system also includes at least one open loop hydraulic circuit fluidly connected to the first accumulator.
摘要翻译： 用于移动机器的液压流体系统包括闭环液压风扇回路。 液压风扇回路包括主泵，与主泵流体连接的马达和由马达驱动的风扇。 液压风扇回路还包括从初级泵延伸到电动机的供给通道，从马达延伸到主泵的返回通道，以及通过充电器选择性地流体连接到至少一个供给回路通道的第一储液器 阀。 液压流体系统还包括流体连接到第一蓄能器的至少一个开环液压回路。
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公开(公告)号：US20140033691A1
公开(公告)日：2014-02-06
申请号：US13563870
申请日：2012-08-01
CPC分类号： E02F9/2217 , E02F9/2235 , E02F9/226 , E02F9/2285 , E02F9/2289 , E02F9/2296 , F01P7/044 , F16H61/431 , F16H61/438
摘要： A hydraulic circuit is provided. The hydraulic circuit includes a primary pump, a displacement actuator, a charge pump, a direction control valve, and a pressure control valve. The displacement actuator is associated with the primary pump. The charge pump is configured to generate a flow of a pilot fluid. The direction control valve is configured to control the flow of the pilot fluid to the displacement actuator to affect a movement direction of the displacement actuator. The pressure control valve is configured to control a pressure of the pilot fluid to affect a movement amount of the displacement actuator. Further, the hydraulic circuit includes a controller. The controller is configured to control the direction and the pressure control valves to adjust a displacement of the primary pump based at least on one of a sensed engine parameter or a mode of operation of the primary pump.
摘要翻译： 提供液压回路。 液压回路包括主泵，排量致动器，电荷泵，方向控制阀和压力控制阀。 位移致动器与主泵相关联。 电荷泵被配置成产生先导流体的流动。 方向控制阀构造成控制先导流体到位移致动器的流动，以影响位移致动器的移动方向。 压力控制阀构造成控制先导流体的压力以影响位移致动器的移动量。 此外，液压回路包括控制器。 所述控制器被配置成控制所述方向和所述压力控制阀，以至少基于感测到的所述主泵的所述发动机参数或所述主泵的操作模式之一来调节所述主泵的位移。
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公开(公告)号：US20130000291A1
公开(公告)日：2013-01-03
申请号：US13171166
申请日：2011-06-28
IPC分类号： F16D31/02
CPC分类号： E02F9/2217 , E02F9/226 , F01P7/044 , F15B21/14 , F15B2211/20546 , F15B2211/212 , F15B2211/50518 , F15B2211/7058 , F15B2211/763 , F15B2211/88
摘要： A hydraulic circuit is disclosed. The hydraulic circuit may have a pump, a motor, a tank, and an accumulator. The hydraulic circuit may also have a valve movable between a first position at which an output of the pump is fluidly connected to the tank and the accumulator is fluidly connected to the motor, and a second position at which the output of the pump is fluidly connected to the motor.
摘要翻译： 公开了一种液压回路。 液压回路可以具有泵，马达，储罐和蓄能器。 液压回路还可以具有阀，其可以在第一位置和第二位置之间移动，在第一位置，泵的输出在该第一位置处液压地连接到油箱，并且蓄压器流体地连接到电动机;以及第二位置，泵的输出流体连接 到电机。
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公开(公告)号：US20120304636A1
公开(公告)日：2012-12-06
申请号：US13149430
申请日：2011-05-31
CPC分类号： F16H61/4026 , B60K2025/026 , F01P7/044 , F15B7/005 , F15B7/008 , F15B2211/20523 , F15B2211/20546 , F15B2211/20569 , F15B2211/212 , F15B2211/613 , F15B2211/7058 , F16H61/4104 , F16H61/438
摘要： A hydraulic fan circuit includes a primary pump, a motor fluidly connected to the primary pump, and a fan operably connected to and driven by the motor. The circuit also includes a supply passage extending from the primary pump to the motor, a return passage extending from the motor to the primary pump, and a pressure limiting valve configured to selectively reduce pressure of a flow of pilot fluid directed to the primary pump. The circuit further includes an override valve configured to selectively connect the supply passage to the pressure limiting valve.
摘要翻译： 液压风扇回路包括主泵，流体连接到主泵的马达和可操作地连接到马达并由马达驱动的风扇。 电路还包括从主泵延伸到电动机的供应通道，从电动机延伸到主泵的返回通道，以及被配置为选择性地减小被引导到主泵的先导流体的流的压力的限压阀。 电路还包括被配置为选择性地将供给通道连接到限压阀的超控阀。
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公开(公告)号：US20120301326A1
公开(公告)日：2012-11-29
申请号：US13116709
申请日：2011-05-26
申请人： Viral S. MEHTA , Noah D. MANRING , Hongliu DU , Bryan E. NELSON
发明人： Viral S. MEHTA , Noah D. MANRING , Hongliu DU , Bryan E. NELSON
IPC分类号： F04B1/26
CPC分类号： F04B1/306
摘要： A pump is disclosed. The pump may have a housing, a body rotatably disposed within the housing and at least partially defining a plurality of barrels, a plurality of plungers associated with the plurality of barrels, and a swashplate tiltable by a swivel torque to vary a displacement of the plurality of plungers relative to the plurality of barrels. The pump may also have a port plate with an inlet port, a discharge port, and a protrusion. The port plate may be configured to engage an end of the rotatable body. The pump may further have at least one piston disposed within the housing and configured to selectively engage the protrusion of the port plate to rotate the port plate and adjust the swivel torque.
摘要翻译： 公开了一种泵。 泵可以具有壳体，可旋转地设置在壳体内并且至少部分地限定多个筒的主体，与多个筒相关联的多个柱塞，以及可由旋转扭矩倾斜以改变多个筒的位移的斜盘 的柱塞相对于多个筒。 泵还可以具有带有入口端口，排出口和突起的端口板。 端口板可以构造成接合可旋转主体的端部。 泵还可以具有设置在壳体内的至少一个活塞并且构造成选择性地接合端口板的突起以旋转端口板并调节旋转扭矩。
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公开(公告)号：US20130081382A1
公开(公告)日：2013-04-04
申请号：US13249932
申请日：2011-09-30
IPC分类号： F16D31/02
CPC分类号： F15B11/024
摘要： A hydraulic system is disclosed. The hydraulic system may have a pump, and a hydraulic actuator having a first chamber and a second chamber. The hydraulic system may also have a first pump passage fluidly communicating the pump with the first chamber, a second pump passage connected to the pump, and a regeneration valve. The regeneration valve may be movable from a first position at which the second pump passage is connected to the second chamber and the second chamber is isolated from the first chamber, to a second position at which the second pump passage is blocked and the second chamber is connected to the first chamber.
摘要翻译： 公开了一种液压系统。 液压系统可以具有泵，以及具有第一室和第二室的液压致动器。 液压系统还可以具有将泵与第一室流体连通的第一泵通道，连接到泵的第二泵通道和再生阀。 再生阀可以从第二泵通道连接到第二室的第一位置和第二室与第一室隔离，到第二位置，第二泵通道被阻塞，第二室是 连接到第一个室。
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公开(公告)号：US20120301325A1
公开(公告)日：2012-11-29
申请号：US13114670
申请日：2011-05-24
CPC分类号： E02F9/2232 , E02F9/2296 , F15B21/08 , F15B2211/20553 , F15B2211/63
摘要： A pump system is disclosed. The pump system may have a pump with a displacement that is variable, and an actuator movable to adjust the displacement of the pump. The pump system may also have an electro-hydraulic valve fluidly connected to the actuator and configured to control movement of the actuator, and a variable resistor mechanically connected to at least one of the actuator and the pump. The variable resistor may be adjustable by movement of the at least one of the actuator and the pump to vary a current passing through the electro-hydraulic valve.
摘要翻译： 公开了一种泵系统。 泵系统可以具有可变位移的泵，以及可移动以调节泵的位移的致动器。 泵系统还可以具有流体地连接到致动器并被配置为控制致动器的运动的电动液压阀，以及机械地连接到致动器和泵的至少一个的可变电阻器。 可变电阻器可以通过致动器和泵中的至少一个的运动来调节，以改变通过电动液压阀的电流。
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