专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明公开

EP2245316A1 CONTROL SYSTEM FOR RECOVERING SWING MOTOR KINETIC ENERGY 有权
标题翻译：控制系统的液压发动机OBTAINING动能
公开(公告)号：EP2245316A1
公开(公告)日：2010-11-03
申请号：EP09713856.4
申请日：2009-02-27
申请人： Caterpillar, Inc. , Caterpillar Japan Ltd.
发明人： ZHANG, Jiao , MA, Pengfei , SCHWAB, Michael, R. , SHANG, Tonglin , PATEL, Kalpesh, N.
IPC分类号： F15B1/02 , F15B9/08 , F15B9/17
CPC分类号： F15B1/024 , E02F9/2217 , E02F9/2228 , E02F9/2296 , F15B21/14 , F15B2211/20546 , F15B2211/212 , F15B2211/3144 , F15B2211/31529 , F15B2211/31558 , F15B2211/50527 , F15B2211/6306 , F15B2211/6346 , F15B2211/7058 , F15B2211/88
摘要： This disclosure relates to a hydraulic system and method that converts the kinetic energy generated by the operation of a swing motor into hydraulic potential energy and reuses the hydraulic potential energy for swing motor acceleration. An accumulator can be provided for storing exit oil from the swing motor that is pressurized by the inertia torque applied on the moving motor via movement of an upper structure of a machine. The pressurized oil in the accumulator can be reused to accelerate the swing motor by supplying pressurized oil to the swing motor.

22. 发明公开

EP4332310A1 METHOD FOR MONITORING OPERATION OF A HYDRAULIC SYSTEM 审中-公开
公开(公告)号：EP4332310A1
公开(公告)日：2024-03-06
申请号：EP23191055.5
申请日：2023-08-11
申请人： Caterpillar Inc.
发明人： MA, Pengfei
IPC分类号： E02F9/26 , E02F9/22 , F15B19/00
摘要： The present invention pertains to method for monitoring operation of a hydraulic system (10), in particular of a hydraulic system of a working machine, having at least one hydraulic actuator (12). The method comprises a step (S 1) of determining a predefined operating condition of the hydraulic system (10); a step (S2) of determining an input power parameter being indicative of a power provided by an engine (28) to the hydraulic system (10) during the predetermined operating condition; a step (S3) of determining an output power parameter being indicative of a power provided by the hydraulic actuator (12) during the predetermined operating condition; and a step (S4) of determining a fault condition of the hydraulic system (10) based on the input power parameter and the output power parameter.

23. 发明授权

EP2245316B1 CONTROL SYSTEM FOR RECOVERING HYDRAULIC MOTOR KINETIC ENERGY 有权
标题翻译：控制系统的液压发动机OBTAINING动能
公开(公告)号：EP2245316B1
公开(公告)日：2015-08-19
申请号：EP09713856.4
申请日：2009-02-27
申请人： Caterpillar, Inc. , Caterpillar Japan Ltd.
发明人： ZHANG, Jiao , MA, Pengfei , SCHWAB, Michael, R. , SHANG, Tonglin , PATEL, Kalpesh, N.
IPC分类号： F15B1/02 , F15B9/08 , F15B9/17 , E02F9/22 , F15B21/14
CPC分类号： F15B1/024 , E02F9/2217 , E02F9/2228 , E02F9/2296 , F15B21/14 , F15B2211/20546 , F15B2211/212 , F15B2211/3144 , F15B2211/31529 , F15B2211/31558 , F15B2211/50527 , F15B2211/6306 , F15B2211/6346 , F15B2211/7058 , F15B2211/88

24. 发明公开

EP2726745A2 ENERGY RECOVERY SYSTEM HAVING ACCUMULATOR AND VARIABLE RELIEF 审中-公开
标题翻译：具有可变ACC和救济能量回收系统
公开(公告)号：EP2726745A2
公开(公告)日：2014-05-07
申请号：EP12803594.6
申请日：2012-06-14
申请人： Caterpillar Inc.
发明人： ZHANG, Jiao , CHEN, Dayao , MA, Pengfei , SHANG, Tonglin , TOGNETTI, Lawrence , KUEHN, Jeffrey
IPC分类号： F15B21/14 , E02F9/22 , F15B13/02
CPC分类号： E02F9/123 , E02F9/2217 , E02F9/2296 , F15B21/14 , F15B2211/20546 , F15B2211/212 , F15B2211/30575 , F15B2211/50527 , F15B2211/7058 , F15B2211/88
摘要： A swing energy recovery system (50) for a machine (10) is disclosed. The swing energy recovery system may have a pump (58) configured to pressurize fluid, a motor (49) driven by a flow of pressurized fluid from the pump, and an energy recovery arrangement (104) configured to receive pressurized fluid discharged from the motor and selectively supply pressurized fluid to the motor. A selector valve (120), a charge valve (122), and a discharge valve (124) can be selectively used for charging and discharging at least one accumulator (108, 110). The swing energy recovery system may also have a pressure relief valve (146) associated with the motor, and a controller (100) in communication with the energy recovery arrangement and the pressure relief valve. The controller may be configured to selectively adjust a setting of the pressure relief valve based on an operating condition of the energy recovery arrangement.

25. 发明申请

WO2022240673A1 COOLER BYPASS VALVE ASSEMBLY FOR HYDRAULIC SYSTEM RETURN CIRCUIT 审中-公开
公开(公告)号：WO2022240673A1
公开(公告)日：2022-11-17
申请号：PCT/US2022/028032
申请日：2022-05-06
申请人： CATERPILLAR INC.
发明人： JOHNSON, Gustaf A. , MA, Pengfei , GARRITY, Jordan
IPC分类号： F15B21/0427 , E02F9/226 , E02F9/2267 , F15B21/0423 , F15B2211/40507 , F15B2211/41581 , F15B2211/50518 , F15B2211/50545 , F15B2211/5159 , F15B2211/5753 , F15B2211/611 , F15B2211/62 , F15B2211/6343 , F15B2211/66 , F15B2211/851
摘要： A work machine includes a frame, a traction system supporting the frame, an implement system supported by the frame, and a hydraulic system. The hydraulic system includes a hydraulic oil tank, a control circuit, an oil cooler, and a cooler bypass valve assembly. The cooler bypass valve assembly is connected to the control circuit by a control circuit return line, and includes an unloading valve configured to allow hydraulic oil to flow from the control circuit return line to the hydraulic oil tank if a pressure of hydraulic oil in the control circuit return line exceeds a first threshold, a backpressure valve configured to allow hydraulic oil to flow from the return line to the oil cooler through an oil cooler inlet line if a pressure of hydraulic in the oil control circuit return line exceeds a second threshold, and an orifice configured to limit the flow of hydraulic oil through the backpressure valve.

26. 发明申请

WO2016040484A1 MACHINE HAVING HYDRAULIC START ASSIST SYSTEM 审中-公开
标题翻译：具有液压启动辅助系统的机器
公开(公告)号：WO2016040484A1
公开(公告)日：2016-03-17
申请号：PCT/US2015/049187
申请日：2015-09-09
申请人： CATERPILLAR INC.
发明人： MORRIS, Emily Anne , PETERSON, Jeremy Todd , KUEHN, Jeffrey Lee , CHEN, Dayao , MA, Pengfei
IPC分类号： F15B11/04 , F15B15/08 , F15B1/04 , F15B21/14 , E02F9/24 , E02F9/14 , E02F9/20
CPC分类号： E02F9/2246 , E02F9/2066 , E02F9/2217 , E02F9/2296 , F02N7/08 , F02N11/00 , F02N11/0814 , F02N2300/2002 , F15B2211/20523 , F15B2211/212 , F15B2211/88
摘要： A hydraulic system (14) is disclosed for assisting starting of a machine (10) having an engine (59). The hydraulic system may include a work tool (16), a pump (58) driven by the engine to pressurize fluid, and an actuator (49) configured to receive pressurized fluid from the pump and move the work tool. The hydraulic system may also include an accumulator (108) configured to selectively receive pressurized fluid from the pump and from the actuator, an electric starter (274) configured to start the engine, and a motor (241) selectively supplied with fluid from the accumulator to assist the electric starter in starting the engine.
摘要翻译：公开了一种用于辅助起动具有发动机（59）的机器（10）的液压系统（14）。液压系统可以包括工作工具（16），由发动机驱动以对流体加压的泵（58）和构造成从泵接收加压流体并移动作业工具的致动器（49）。液压系统还可以包括蓄能器（108），其构造成选择性地接收来自泵和来自致动器的加压流体，构造成启动发动机的电启动器（274）和选择性地从蓄能器供应流体的马达（241）以协助电动起动器启动发动机。

27. 发明申请

WO2015130517A1 MACHINE HAVING HYDRAULIC START ASSIST SYSTEM 审中-公开
标题翻译：具有液压启动辅助系统的机器
公开(公告)号：WO2015130517A1
公开(公告)日：2015-09-03
申请号：PCT/US2015/016245
申请日：2015-02-18
申请人： CATERPILLAR INC.
发明人： MORRIS, Emily Anne , PETERSON, Jeremy Todd , KUEHN, Jeffrey Lee , CHEN, Dayao , MA, Pengfei
IPC分类号： E02F9/22 , E02F9/02
CPC分类号： F15B1/024 , B60K2006/126 , E02F3/425 , E02F9/2217 , F02N7/08 , F02N11/00 , F02N2300/2002 , F04B17/05 , F04B35/002 , F15B21/14 , F15B2211/20523 , F15B2211/20546 , F15B2211/212 , F15B2211/7053 , F15B2211/7058 , F15B2211/7135 , F15B2211/851 , F15B2211/853
摘要： A hydraulic system (14) is disclosed for assisting starting of a machine (10) having an engine (59). The hydraulic system may include a work tool (16), a pump (58) driven by the engine to pressurize fluid, and an actuator (49) configured to receive pressurized fluid from the pump and move the work tool. The hydraulic system may also include an accumulator (108) configured to selectively receive pressurized fluid from the pump and from the actuator, an electric starter (274) configured to start the engine, and a motor (241) selectively supplied with fluid from the accumulator to assist the electric starter in starting the engine.
摘要翻译：公开了一种用于辅助起动具有发动机（59）的机器（10）的液压系统（14）。液压系统可以包括工作工具（16），由发动机驱动以对流体加压的泵（58）和构造成从泵接收加压流体并移动作业工具的致动器（49）。液压系统还可以包括蓄能器（108），其构造成选择性地接收来自泵和来自致动器的加压流体，构造成启动发动机的电启动器（274）和选择性地从蓄能器供应流体的马达（241）以协助电动起动器启动发动机。

28. 发明申请

WO2013142541A2 HYDRAULIC ACCUMULATOR PRE-CHARGE PRESSURE DETECTION 审中-公开
标题翻译：液压蓄能器预充气压力检测
公开(公告)号：WO2013142541A2
公开(公告)日：2013-09-26
申请号：PCT/US2013/033040
申请日：2013-03-20
申请人： CATERPILLAR INC.
发明人： CHEN, Dayao , MA, Pengfei , SHANG, Tonglin , HILLMAN, Bryan, J
IPC分类号： F15B1/10 , F15B1/04
CPC分类号： F15B1/08 , F15B19/005 , F15B2201/31 , F15B2201/505 , F15B2201/51
摘要： A system (100) including a hydraulic accumulator (102), a pressure sensor (104), a fluid source (106) and a data processor (108) to detect a pre- charge pressure is provided. The hydraulic accumulator (102) includes first and second chambers (302, 304) and a separator (306) therebetween. The hydraulic accumulator (102) has an associated pre-charge pressure. The pressure sensor (104) coupled to the first chamber (302). The data processor (108) is configured to receive pressure readings from the pressure sensor (104). The data processor (108) is configured to determine a first and second rate of pressure changes, and a transition pressure between the first and second rates. The approximate pre- charge pressure is determined based on the transition pressure.
摘要翻译：提供一种包括液压蓄能器（102），压力传感器（104），流体源（106）和数据处理器（108）以检测预充气压力的系统（100）。液压蓄能器（102）包括第一和第二腔室（302,304）和它们之间的分离器（306）。液压蓄能器（102）具有相关联的预充压力。耦合到第一室（302）的压力传感器（104）。数据处理器（108）被配置为从压力传感器（104）接收压力读数。数据处理器（108）被配置为确定第一和第二压力变化率以及第一和第二速率之间的过渡压力。基于过渡压力确定近似预充气压力。

29. 发明申请

WO2016153631A1 ENGINE ASSIST BY RECOVERING SWING KINETIC ENERGY 审中-公开
标题翻译：发动机辅助通过恢复动力学能量
公开(公告)号：WO2016153631A1
公开(公告)日：2016-09-29
申请号：PCT/US2016/018012
申请日：2016-02-16
申请人： CATERPILLAR INC.
发明人： SHANG, Tonglin , CHEN, Dayao , MA, Pengfei
IPC分类号： E02F9/22 , F15B1/02
CPC分类号： E02F9/2217 , E02F9/123 , E02F9/128 , E02F9/2066 , E02F9/2228 , E02F9/2235 , E02F9/2292 , E02F9/2296 , F15B11/161 , F15B11/17 , F15B13/06 , F15B21/14 , F15B2211/20507 , F15B2211/212 , F15B2211/30575 , F15B2211/7058 , F15B2211/7142 , F15B2211/88
摘要： An energy recovery system (114) for a machine (10) having a movable work tool (16), a swing motor (49) to swing the work tool (16) about a vertical axis (46), a pump (58) providing pressurized fluid to the swing motor (49), a power source (88) outputting power to drive the pump (58), and a controller (110). The energy recovery system (114) may include a first accumulator (118), a swing charge valve (128) selectively connecting the swing motor (49) to the first accumulator (118), an assist motor (132) operatively connected to the power source (88), and a discharge valve (130) selectively connecting the first accumulator (118) to the assist motor (132). The swing charge valve (128) may fluidly connect the swing motor (49) to the first accumulator (118) when fluid pressure from the swing motor (49) is greater than a charge set pressure. The controller (110) may cause the discharge valve (130) to fluidly connect the first accumulator (118) with the assist motor (132) when the power demand on the power source (88) is greater than a minimum assisted power demand.
摘要翻译：一种用于具有可移动工作工具（16）的机器（10）的能量回收系统（114），围绕垂直轴线（46）摆动工作工具（16）的回转马达（49），提供加压流体到摆动马达（49），输出动力以驱动泵（58）的动力源（88）和控制器（110）。能量回收系统（114）可以包括第一蓄能器（118），有选择地将回转马达（49）连接到第一蓄能器（118）的摆动充气阀（128），可操作地连接到动力源极（88）和选择性地将第一蓄能器（118）连接到辅助马达（132）的排出阀（130）。当来自回转马达（49）的流体压力大于充电设定压力时，摆动充气阀（128）可以将回转马达（49）流体地连接到第一储液器（118）。当电源（88）的电力需求大于最小辅助功率需求时，控制器（110）可以使排放阀（130）将第一蓄能器（118）与辅助马达（132）流体连接。

30. 发明申请

WO2014036224A1 HYDRAULIC CONTROL SYSTEM 审中-公开
标题翻译：液压控制系统
公开(公告)号：WO2014036224A1
公开(公告)日：2014-03-06
申请号：PCT/US2013/057230
申请日：2013-08-29
申请人： CATERPILLAR INC.
发明人： MA, Pengfei , PETERSON, Randal, Neil , ZHANG, Jiao , CHEN, Dayao , SHANG, Tonglin
IPC分类号： E02F9/22 , F15B13/02
CPC分类号： E02F9/2217 , E02F9/123 , E02F9/2296 , F15B1/024 , F15B21/14 , F15B2211/20546 , F15B2211/212 , F15B2211/6306 , F15B2211/6313 , F15B2211/6336 , F15B2211/665 , F15B2211/6652 , F15B2211/6658 , F15B2211/7058 , F15B2211/75 , F15B2211/763 , F15B2211/88
摘要： A hydraulic control system (50) includes an implement (16) movable to perform an excavation cycle having a plurality of segments, a variable displacement motor (49) configured to swing the implement (16) at a desired speed during the excavation cycle, and a pump (58) configured to pressurize fluid directed to drive the motor (49). The system further includes an accumulator (108) configured to selectively receive fluid discharged from the motor (49) via a charge valve (122), and to discharge fluid to the motor (49) via a discharge valve (124). The system includes a selector valve (120) fluidly connected to the charge valve (122) and the discharge valve (124). The system also includes a controller (100) configured to vary displacement of the motor (49), resulting in the desired speed.
摘要翻译：液压控制系统（50）包括可移动以执行具有多个段的挖掘循环的工具（16），构造成在挖掘循环期间以期望速度摆动工具（16）的可变排量马达（49），以及构造成对被引导以驱动马达（49）的流体加压的泵（58）。该系统还包括蓄能器（108），其被构造成经由充气阀（122）有选择地接收从马达（49）排出的流体，并经由排放阀（124）将流体排放到马达（49）。该系统包括流体连接到充气阀（122）和排出阀（124）的选择阀（120）。该系统还包括被配置为改变电动机（49）的位移的控制器（100），从而产生期望的速度。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式