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    Valve gradually bringing pressure signal
    2.
    发明专利
    Valve gradually bringing pressure signal 有权
    VALVE GRADUALLY BRINGING压力信号

    公开(公告)号：JP2006308102A

    公开(公告)日：2006-11-09

    申请号：JP2006127901

    申请日：2006-05-01

    Applicant: Caterpillar Inc ,  Shin Caterpillar Mitsubishi Ltd ,  キャタピラー インコーポレイテッドCaterpillar Incorporated ,  新キャタピラー三菱株式会社

    Inventor： JEFF L KUEHN ,  MA PENGFEI ,  KALPESH N PATEL ,  ZHANG JIAO

    IPC: F15B11/08 ,  F16K31/06

    CPC classification number: F15B11/006 ,  F15B11/05 ,  F15B2211/20546 ,  F15B2211/30535 ,  F15B2211/30575 ,  F15B2211/6054 ,  F15B2211/7053 ,  Y10T137/8667

    Abstract: PROBLEM TO BE SOLVED: To provide a valve applied to an arbitrary hydraulic system containing a fluid actuator requiring a signal pressure gradually transferred to a compensation valve, and capable protecting a component of the hydraulic system and executing a high responsive pressure regulation providing consistent actuator performance with a simple, inexpensive constitution, wherein the signal pressure gradually transferred reduces pressure serge in hydraulic circuit 22. SOLUTION: The valve for the hydraulic system including a pressurized fluid source, the fluid actuator and a proportional pressure compensation valve is provided. The valve has a bore in fluid communication with the fluid source and the fluid actuator. The valve has a valve element disposed in the bore and movable between a circulation shutoff position and a communication position to selectively bring the fluid source into fluid communication with the fluid actuator. The valve has a valve signal passage disposed in the valve element and in fluid communication with pressurized fluid having the signal pressure indicating pressure supplied to the fluid actuator. The valve further includes first and second orifices disposed within the valve element in fluid communication with the valve signal passage and the bore. The valve signal passage transfers the signal pressure to/from the first and second orifices in liquid communication. The first orifice is brought into fluid communication with the system signal passage by shift of the valve element from the circulation shutoff position to the circulation position before the second orifice. Both the first and second orifices are brought into fluid communication with the system signal passage when the valve element is in circulation position. COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题：提供一种应用于含有流体致动器的任意液压系统的阀，其需要逐渐转移到补偿阀的信号压力，并且能够保护液压系统的部件并执行高响应压力调节，提供 一致的致动器性能，具有简单，便宜的构造，其中逐渐传递的信号压力减小了液压回路22中的压力阻力。解决方案：用于液压系统的阀包括加压流体源，流体致动器和比例压力补偿阀 被提供。 阀具有与流体源和流体致动器流体连通的孔。 阀具有设置在孔中的阀元件，并可在循环关闭位置和连通位置之间移动，以选择性地使流体源与流体致动器流体连通。 阀具有阀信号通道，其设置在阀元件中并且与加压流体流体连通，该加压流体具有指示供给流体致动器的压力的信号压力。 阀还包括设置在阀元件内与阀信号通道和孔流体连通的第一和第二孔。 阀门信号通道将信号压力传送到/从第一和第二孔液体连通。 第一孔通过阀元件从循环切断位置移动到第二孔之前的循环位置而与系统信号通道流体连通。 当阀元件处于循环位置时，第一和第二孔都与系统信号通道流体连通。 版权所有（C）2007，JPO＆INPIT

    Hydraulic system comprising flow rate regulator
    3.
    发明专利
    Hydraulic system comprising flow rate regulator 有权
    包含流量调节器的液压系统

    公开(公告)号：JP2006125638A

    公开(公告)日：2006-05-18

    申请号：JP2005316536

    申请日：2005-10-31

    Applicant: Caterpillar Inc ,  Shin Caterpillar Mitsubishi Ltd ,  キャタピラー インコーポレイテッドCaterpillar Incorporated ,  新キャタピラー三菱株式会社

    Inventor： MA PENGFEI ,  ZHANG JIAO

    IPC: F15B11/02 ,  E02F9/22 ,  F15B11/08

    CPC classification number: F15B11/003 ,  E02F9/2203 ,  E02F9/2225 ,  E02F9/226 ,  E02F9/2296 ,  F15B11/05 ,  F15B2211/20546 ,  F15B2211/30535 ,  F15B2211/30575 ,  F15B2211/6051 ,  F15B2211/7053

    Abstract: PROBLEM TO BE SOLVED: To provide a hydraulic system comprising a flow rate regulator capable of reducing a cost of a hydraulic circuit and achieving optimal performance of an actuator.
    SOLUTION: The hydraulic system for a working machine is disclosed. This hydraulic system has a pressurized fluid source and a fluid actuator comprising a first chamber and a second chamber. This hydraulic system further comprises a first valve constituted to selectively fluid-communicate the source with the first chamber, and a second valve constituted to selectively fluid-communicate the source with the second chamber. This hydraulic system further comprises a means for controlling a pressure of the fluid directed between the source and the first and second valves.
    COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：提供一种包括流量调节器的液压系统，其能够降低液压回路的成本并实现致动器的最佳性能。

    解决方案：公开了一种用于工作机械的液压系统。 该液压系统具有加压流体源和包括第一室和第二室的流体致动器。 该液压系统还包括构造成选择性地将源与第一室流体连通的第一阀，以及构造成选择性地将源与第二室流体连通的第二阀。 该液压系统还包括用于控制在源和第一和第二阀之间引导的流体的压力的装置。 版权所有（C）2006，JPO＆NCIPI

    Electronically operated and hydraulically operated drain valve
    4.
    发明专利
    Electronically operated and hydraulically operated drain valve 有权
    电子操作和液压操作的排水阀

    公开(公告)号：JP2006097899A

    公开(公告)日：2006-04-13

    申请号：JP2005284210

    申请日：2005-09-29

    Applicant: Caterpillar Inc ,  Shin Caterpillar Mitsubishi Ltd ,  キャタピラー インコーポレイテッドCaterpillar Incorporated ,  新キャタピラー三菱株式会社

    Inventor： EGELJA ALEKSANDAR M ,  GUO YUN ,  MA PENGFEI ,  SOROKINE MIKHAIL A ,  VONDERWELL MARK P

    IPC: F15B11/08 ,  F15B11/00 ,  F15B13/043 ,  F16K11/24 ,  F16K31/42

    CPC classification number: F15B13/0435 ,  F15B11/006 ,  F15B13/0433 ,  F15B2211/20538 ,  F15B2211/30575 ,  F15B2211/329 ,  F15B2211/7053

    Abstract: PROBLEM TO BE SOLVED: To provide an electronically operated and hydraulically operated drain valve.
    SOLUTION: A valve for a fluid circuit is disclosed. The valve has a main valve element having a first end and a second end. The main valve element is movable between a flow passing position and a cut-off position according to fluid pressure applied on the first end and the second end. The valve has a solenoid mechanism to move the main valve element toward one of the flow passing position and the flow cut-off position in relation with the main valve element and operation ability. Further, the valve has a main valve spring constituted such that urging of the main valve element is effected as against movement caused by the solenoid mechanism. In addition, the valve has an escape valve element constituted such that fluid is communicated with the first end of the main valve element according to fluid pressure by which the movement of the main valve element is started.
    COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 要解决的问题：提供电子操作和液压操作的排水阀。

    解决方案：公开了一种用于流体回路的阀。 阀具有主阀元件，其具有第一端和第二端。 主阀元件根据施加在第一端和第二端上的流体压力在流动通过位置和截止位置之间移动。 阀具有螺线管机构，用于将主阀元件相对于主阀元件和操作能力相对于流通通过位置和流量切断位置移动。 此外，阀具有构成使得主阀元件的推压抵抗由螺线管机构引起的运动而构成的主阀弹簧。 此外，阀具有排出阀元件，该排泄阀元件构成为使得流体与主阀元件的第一端部根据主阀元件的运动开始的流体压力连通。 版权所有（C）2006，JPO＆NCIPI

    HYDRAULIC CONTROL SYSTEM HAVING SWING MOTOR ENERGY RECOVERY
    5.
    发明申请
    HYDRAULIC CONTROL SYSTEM HAVING SWING MOTOR ENERGY RECOVERY 审中-公开
    液压控制系统具有回转电机能量回收

    公开(公告)号：WO2013003047A3

    公开(公告)日：2013-03-07

    申请号：PCT/US2012042350

    申请日：2012-06-14

    Applicant: CATERPILLAR INC ,  ZHANG JIAO ,  SHANG TONGLIN ,  SPRING PETER ,  MA PENGFEI ,  PETERSON RANDAL

    Inventor： ZHANG JIAO ,  SHANG TONGLIN ,  SPRING PETER ,  MA PENGFEI ,  PETERSON RANDAL

    IPC: F15B13/02 ,  E02F9/22 ,  F15B21/08

    CPC classification number: E02F9/2217 ,  E02F9/123 ,  E02F9/2037 ,  E02F9/2296 ,  F15B1/02 ,  F15B21/14 ,  F15B2211/212 ,  F15B2211/30575 ,  F15B2211/50527 ,  F15B2211/613 ,  F15B2211/7058 ,  F15B2211/88

    Abstract: A hydraulic control system (50) for a machine (10) is disclosed. The hydraulic control system may have a work tool (16) movable through segments of an excavation cycle, a motor (49) configured to swing the work tool during the excavation cycle, at least one accumulator (108, 110) configured to selectively receive fluid discharged from the motor and to discharge fluid to the motor during the excavation cycle, and a controller (100). The controller may be configured to receive input regarding a current excavation cycle of the work tool, and make a determination based on the input that the current excavation cycle is associated with one of a set of known modes of operation. The controller may be further configured to cause the at least one accumulator to receive fluid and discharge fluid during different segments of the excavation cycle based on the determination.

    Abstract translation: 公开了一种用于机器（10）的液压控制系统（50）。 液压控制系统可具有可通过挖掘循环的段移动的作业工具（16），构造成在挖掘循环期间摆动作业工具的马达（49），至少一个配置成选择性地接收流体的蓄能器（108,110） 在所述挖掘循环期间从所述马达排出并将流体排出到所述马达;以及控制器（100）。 控制器可以被配置为接收关于作业工具的当前挖掘循环的输入，并且基于输入确定当前挖掘循环与一组已知的操作模式中的一个相关联。 所述控制器可以进一步配置成基于所述确定使得所述至少一个蓄能器接收在挖掘循环的不同段期间的流体和排放流体。

    HYDRAULIC ACCUMULATOR PRE-CHARGE PRESSURE DETECTION
    8.
    发明申请
    HYDRAULIC ACCUMULATOR PRE-CHARGE PRESSURE DETECTION 审中-公开
    液压蓄能器预充压力检测

    公开(公告)号：WO2013142541A3

    公开(公告)日：2013-11-14

    申请号：PCT/US2013033040

    申请日：2013-03-20

    Applicant: CATERPILLAR INC

    Inventor： CHEN DAYAO ,  MA PENGFEI ,  SHANG TONGLIN ,  HILLMAN BRYAN J

    IPC: F15B1/10 ,  F15B1/04

    CPC classification number: F15B1/08 ,  F15B19/005 ,  F15B2201/31 ,  F15B2201/505 ,  F15B2201/51

    Abstract: 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.

    Abstract translation: 提供了包括液压蓄能器（102），压力传感器（104），流体源（106）和数据处理器（108）以检测预充压力的系统（100）。 液压蓄能器（102）包括第一和第二腔室（302,304）以及其间的分离器（306）。 液压蓄能器（102）具有相关的预充压力。 压力传感器（104）耦合到第一腔室（302）。 数据处理器（108）被配置为接收来自压力传感器（104）的压力读数。 数据处理器（108）配置成确定第一和第二压力变化速率以及第一和第二速率之间的转换压力。 近似的预充压力基于过渡压力确定。

    INDEPENDENT METERING VALVE WITH FLOW LIMITER
    9.
    发明申请
    INDEPENDENT METERING VALVE WITH FLOW LIMITER 审中-公开
    带限流器的独立计量阀

    公开(公告)号：WO2012082354A2

    公开(公告)日：2012-06-21

    申请号：PCT/US2011062357

    申请日：2011-11-29

    Applicant: CATERPILLAR INC ,  FERRAZ JOHN ,  EGELJA ALEKSANDAR ,  MA PENGFEI ,  BESCHORNER MATTHEW

    Inventor： FERRAZ JOHN ,  EGELJA ALEKSANDAR ,  MA PENGFEI ,  BESCHORNER MATTHEW

    IPC: F15B13/02 ,  E02F9/22 ,  F16K31/12

    CPC classification number: F15B11/05 ,  F15B2211/20523 ,  F15B2211/30575 ,  F15B2211/40561 ,  F15B2211/5059 ,  F15B2211/7053 ,  Y10T137/0379 ,  Y10T137/7761

    Abstract: An independent metering valve (24) (IMV) assembly is disclosed that includes a metering stem (21) including an inlet (29). The IMV assembly also includes a hydro-mechanical control valve (37) in communication with a fluid source and the inlet (29). The control valve (37) also including a spool (43) with a closed end (46) and an open end (42). The control valve (37) includes a biasing member (48) that biases the control valve (37) or spool (43) towards an open position thereby establishing communication between the fluid source and the inlet (29). The control valve (37) also including a load signal line (45) providing communication between an outlet (18) of the control valve (37) upstream of the inlet (29) and the closed end (46) of the spool (43). Wherein high pressure in the load signal line (45) allowing the control valve (37) to move towards a closed position thereby overcoming bias of the biasing member (48) and reducing flow to the inlet (29) during a high pressure condition.

    Abstract translation: 公开了一种独立的计量阀（24）（IMV）组件，其包括具有入口（29）的计量杆（21）。 IMV组件还包括与流体源和入口（29）连通的液压机械控制阀（37）。 控制阀（37）还包括具有封闭端（46）和开口端（42）的阀芯（43）。 控制阀（37）包括偏压构件（48），该偏压构件将控制阀（37）或阀芯（43）偏压向打开位置，从而在流体源和入口（29）之间建立连通。 控制阀37还包括在入口29上游的控制阀37的出口18与阀芯43的封闭端46之间提供连通的负载信号管线45， 。 其中负载信号线（45）中的高压允许控制阀（37）朝向关闭位置移动，从而克服偏置构件（48）的偏置并在高压状态期间减少流向入口（29）的流量。

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