HYDRAULIKANORDNUNG MIT EINER VERSTELLPUMPE UND EINEM ENTLASTUNGSVENTIL
    1.
    发明申请
    HYDRAULIKANORDNUNG MIT EINER VERSTELLPUMPE UND EINEM ENTLASTUNGSVENTIL 审中-公开
    具有可变和安全阀液压机构

    公开(公告)号:WO2011060929A1

    公开(公告)日:2011-05-26

    申请号:PCT/EP2010/007005

    申请日:2010-11-18

    Inventor: HEEMSKERK, Edwin

    Abstract: Offenbart ist eine Hydraulikanordnung mit zumindest einer Verstellpumpe (4, 6). Diese wird von einem Pumpenregler (8, 10) in Abhängigkeit eines Solldrucks eingestellt. Die zumindest eine Verstellpumpe dient zur Versorgung zumindest eines Verbrauchers mit einer Druckmittelmenge. Des Weiteren ist ein Vergleichsventil (12, 14) vorgesehen, über das der Ausgangsdruck ab einem bestimmten Druckunterschied zum Solldruck abgebaut wird. D. h., übersteigt der Ausgangsdruck den Solldruck um einen vorbestimmten Wert, dann wird der Ausgangsdruck direkt oder indirekt über das Vergleichsventil gemindert.

    Abstract translation: 公开的是具有至少一个可变排量泵(4,6)的液压装置。 这是通过一个泵调节器(8,10)在上设定点压力的依赖性被设定控制。 所述至少一个可变排量泵用于与压力流体的数量提供至少一个使用者。 此外,比较阀(12,14)设置,通过该输出压力从一定的压力差减小到目标压力。 D. H中,出口压力超过一预定值的目标压力,输出压力是通过比较阀直接或间接地减少。

    ファン駆動制御装置および建設機械
    2.
    发明申请
    ファン駆動制御装置および建設機械 审中-公开
    风扇控制装置和结构机

    公开(公告)号:WO2009119407A1

    公开(公告)日:2009-10-01

    申请号:PCT/JP2009/055283

    申请日:2009-03-18

    Abstract:  ファン駆動制御装置は、エンジンで駆動される油圧ポンプから供給される作動油により冷却ファンを駆動する油圧モータと、油圧モータに流入する作動油の流量を調節する流量調節手段と、冷却ファンにより冷却される被冷却流体の温度を検出する温度センサと、温度センサの検出値に基づいて、エンジンの出力を操作するためのアクセル開度を検出するアクセル開度センサと、油圧モータに流入する作動油の目標流量を設定する目標流量設定手段と、アクセル開度センサの検出値に基づいて、目標流量を補正する目標流量補正手段と、目標流量補正手段により補正された目標流量に応じて流量調節手段への制御指令を生成する制御指令生成手段とを備えている。

    Abstract translation: 风扇驱动控制装置设置有用于通过从由发动机驱动的液压泵供给的液压油驱动冷却风扇的液压马达,用于调节流入液压马达的液压油的流量的流量调节装置, 温度传感器,用于检测由冷却风扇冷却的流体的温度;加速器开度传感器,用于基于由温度传感器检测的值检测用于操作发动机的输出的加速器的打开程度;目标流量 速度设定装置,用于设定流入液压马达的液压油的目标流量;目标流量校正装置,用于基于由加速器开度传感器检测的值来校正目标流量;以及控制指令生成装置, 基于由目标流量校正装置校正的目标流量,生成用于流量调节装置的控制命令。

    ELECTRO-HYDRAULIC LOAD SENSE ON A POWER MACHINE
    4.
    发明申请
    ELECTRO-HYDRAULIC LOAD SENSE ON A POWER MACHINE 审中-公开
    电动机上的电液负载感应

    公开(公告)号:WO02046021A2

    公开(公告)日:2002-06-13

    申请号:PCT/US2001/046606

    申请日:2001-12-03

    Abstract: A power machine (10) includes one or more steerable wheels (14). The wheels (14) are steerable using a hydraulic actuator (202, 204) to drive steering movement of the wheels (14). The power machine (10) also includes steering angle sensors (302, 304) which sense the steering angle and provide a signal indicative of the angle at which the wheels (14) are disposed relative to a longitudinal axis of the power machine (10). A hydraulic control system controls pressure of hydraulic fluid provided to the steering actuators (202, 204) based upon the steer angle position and desired change in position over time sensed by the steer angle sensors (302, 304).

    Abstract translation: 动力机械(10)包括一个或多个可转向轮(14)。 使用液压致动器(202,204)来驱动车轮(14)以驱动车轮(14)的转向运动。 动力机械(10)还包括转向角传感器(302,304),其感测转向角并提供指示相对于动力机械(10)的纵向轴线设置车轮(14)的角度的信号, 。 液压控制系统基于转向角位置和由转向角传感器(302,304)感测的随时间的期望位置改变而控制提供给转向致动器(202,204)的液压流体的压力。

    WORKING VEHICLE
    5.
    发明申请
    WORKING VEHICLE 审中-公开
    工作车辆

    公开(公告)号:WO02012641A1

    公开(公告)日:2002-02-14

    申请号:PCT/JP2001/006482

    申请日:2001-07-26

    Abstract: A slew working vehicle (1) is equipped with a left traveling motor (13) and a right traveling motor (14) both for driving left and right traveling devices (2L, 2R) and controls the traveling motors (13, 14) independently with left and right hydraulic directional control valve (15, 16). A throttle valve(55)is provided in a pilot oil passage (54) to allow the oil path to pass in series through the hydraulic directional control valves (15, 16) downstream of the throttle valve (55) and to connect with a drain oil passage (30). This vehicle is also provided with a travel-alarming pressure switch (61) which operates by the pilot oil preessure which is the oil pressure in the pilot oil passage (54) between the throttle valve (55) and the upstream one of the left and right hydraulic control valves (15, 16).

    Abstract translation: 工作车辆(1)配备有用于驱动左右行驶装置(2L,2R)的左行进电动机(13)和右行驶电动机(14),并独立地控制行驶电动机(13,14) 左右液压方向控制阀(15,16)。 节流阀(55)设置在先导油路(54)中,以允许油路通过节流阀(55)下游的液压方向控制阀(15,16)串联通过,并与排水管 油通道(30)。 该车辆还设置有行驶报警压力开关(61),该行驶报警压力开关通过先导油预先操作,该先导油预测是节气门(55)与左侧上游侧之间的先导油路(54)中的油压,以及 右液压控制阀(15,16)。

    PROPORTIONAL SPEED CONTROL OF FLUID POWER DEVICES
    7.
    发明申请
    PROPORTIONAL SPEED CONTROL OF FLUID POWER DEVICES 审中-公开
    流体动力装置的比例速度控制

    公开(公告)号:WO1993016286A1

    公开(公告)日:1993-08-19

    申请号:PCT/US1993000597

    申请日:1993-01-29

    Abstract: A hydraulic circuit (10) for controlling the speed of multiple hydraulic fluid power devices (18, 20) when the flow demand of the devices (18, 20) exceeds the flow capacity of a pressure source (6) supplying hydraulic fluid under pressure to the devices (18, 20) has multiple pressure controlled proportional flow supply valves (24) for controlling the supply of hydraulic fluid to the power devices (18,20). Load sense pressures which indicate the pressure delivered by the valves (24) to the corresponding devices (18, 20) are compared to determine the highest load sense pressure, which is compared to the supply pressure by a proportional speed sensing valve (94) to regulate the pilot pressure. In the preferred embodiment, the pilot pressure is regulated by the proportional speed sensing valve (94) to be equal to the differential between the supply pressure and the highest load sense pressure, and a limit control (231, 247) is provided in one form (215) of the proportional speed sensing valve. Thus, when the differential between supply pressure and the highest load sense pressure starts falling, as occurs when the flow demand exceeds the flow capacity of the pump (6) the pilot pressure is reduced, which reduces flow to the power devices (18, 20) proportionally to reduce the speeds of the devices (18, 20) while maintaining substantially constant the proportions of the speeds to one another.

    HYDRAULIC CIRCUIT FOR OPERATING PLURAL ACTUATORS AND ITS PRESSURE COMPENSATING VALVE AND MAXIMUM LOAD PRESSURE DETECTOR
    8.
    发明申请
    HYDRAULIC CIRCUIT FOR OPERATING PLURAL ACTUATORS AND ITS PRESSURE COMPENSATING VALVE AND MAXIMUM LOAD PRESSURE DETECTOR 审中-公开
    用于操作二次执行机构的液压回路及其压力补偿阀和最大负载检测器

    公开(公告)号:WO1993011364A1

    公开(公告)日:1993-06-10

    申请号:PCT/JP1992001540

    申请日:1992-11-25

    Abstract: Simultaneous operation efficiency in a case where a plurality of actuators are operated by one or a plurality of hydraulic pumps is improved. A delivery pressure passage (1a) of one hydraulic pump (1) and that (1a) of the other hydraulic pump (1) communicate with each other through a first short-circuit passage (39) via a pair of check valves (38, 38), and an unload valve (40) is provided in this first short circuit passage (39). The load pressure introduction passages (6, 6) on the left and right hydraulic pumps (1, 1) side communicate with each other through a second short circuit passage (36) via a pair of check valves (35, 35), and a relief valve (37) is provided in this short circuit passage (36). The unload valve (40) is unloaded by the differential pressure between the pump delivery pressure in the first short circuit passage (39) and the load pressure in the second short circuit passage (36), whereby a single relief valve (37) carries out a relieving operation both in the flow merging time and current branching time to equalize the maximum pump delivery pressures. The set pressure of the relief valve (37) can be a high level so as to relieve the valve (37) under a predetermined high load pressure and so as not to relieve the same, whereby the relieving operation can be arbitrarily controlled.

    Abstract translation: 在多个致动器由一个或多个液压泵操作的情况下的同时操作效率提高。 一个液压泵(1)的输送压力通道(1a)和另一个液压泵(1)的(1a)通过第一短路通道(39)经由一对止回阀(38, 38),并且在该第一短路通路(39)中设置有卸载阀(40)。 左右液压泵(1,1)侧的负荷压力导入通路(6,6)经由一对止回阀(35,35)经由第二短路通路(36)相互连通, 在该短路通路(36)上设有安全阀(37)。 卸载阀(40)通过第一短路通路(39)中的泵输送压力与第二短路通路(36)中的负载压力之间的压差来卸载,由此单个安全阀(37)执行 在流动合并时间和当前分支时间中的减轻操作以均衡最大泵输送压力。 安全阀(37)的设定压力可以是高水平,以便在预定的高负载压力下释放阀(37),并且不会使其释放,从而可以任意地控制卸载操作。

    DUAL PRESSURE LOGIC FOR A TRACK DRILL CIRCUIT
    9.
    发明申请
    DUAL PRESSURE LOGIC FOR A TRACK DRILL CIRCUIT 审中-公开
    轨道钻电路的双压力逻辑

    公开(公告)号:WO2018075596A1

    公开(公告)日:2018-04-26

    申请号:PCT/US2017/057112

    申请日:2017-10-18

    Abstract: A hydraulic circuit (38, 54) may be used for controlling a plurality of hydraulic implements (36, 50, 52). The hydraulic circuit (38, 54) may include a first directional valve (66), a second directional valve (64), and a relief valve. A variable displacement pump (42) (42) may be fluidly coupled to the first directional valve (66), the second directional valve (64), and the relief valve. The hydraulic circuit (38, 54) may be communicably and operably coupled to a controller, and the controller (56) may be programmed to selectably control the hydraulic circuit (38, 54) between a first operational mode (60) and a second operational mode (62). Additionally, the controller (56) may be programmed to actuate the first directional valve (66) between an open position and a closed position and to actuate the second directional valve (64) between a first open position, a second open position, a first closed position and a second closed position.

    Abstract translation: 液压回路(38,54)可以用于控制多个液压工具(36,50,52)。 液压回路(38,54)可以包括第一方向阀(66),第二方向阀(64)和安全阀。 可变排量泵(42)(42)可以流体联接到第一方向阀(66),第二方向阀(64)和安全阀。 液压回路(38,54)可以可通信地且可操作地联接到控制器,并且控制器(56)可以被编程为在第一操作模式(60)和第二操作模式(60)之间可选择地控制液压回路(38,54) 模式(62)。 另外,控制器(56)可以被编程为在打开位置和关闭位置之间致动第一方向阀(66)并且致动第二方向阀(64)在第一打开位置,第二打开位置,第一 关闭位置和第二关闭位置。

    굴삭기용 압력피크 저감밸브 및 그것을 포함하는 굴삭기용 압력피크 저감 시스템
    10.
    发明申请
    굴삭기용 압력피크 저감밸브 및 그것을 포함하는 굴삭기용 압력피크 저감 시스템 审中-公开
    用于包括其的挖掘机的用于挖掘机和压力减小系统的压力减小阀

    公开(公告)号:WO2015099337A1

    公开(公告)日:2015-07-02

    申请号:PCT/KR2014/012254

    申请日:2014-12-12

    Inventor: 임현식 조용락

    Abstract: 본 발명의 실시예는 굴삭기의 압력피크 저감밸브에 관한 것으로, 굴삭기용 압력피크 저감밸브는 유암펌프로부터 토출되는 작동유가 유입되는 유입구가 단부에 형성되고, 유압 탱크와 연통되는 연통공이 외주면에 적어도 하나 이상 형성되는 포펫 시트와, 상기 포펫 시트의 내부에서 슬라이딩 되는 메인 포펫와, 상기 메인 포펫의 내부에 마련되는 포펫 스프링와, 상기 포펫 스프링의 일단부와 접촉하도록 그 일단부가 상기 메인 포펫에 삽입되는 밸브 시트와, 상기 밸브 시트의 단부에 형성되는 개폐공에 삽입되도록 마련되는 콘과, 상기 밸브 시트의 내부에 마련되는 조정 스크류, 및 상기 조정 스크류의 내부에서 슬라이딩 되는 피스톤을 포함한다.

    Abstract translation: 本发明的一个实施例涉及一种用于挖掘机的压力峰值减小阀。 挖掘机的压力峰值减速阀包括:具有入口的提升片,从液压泵排出的工作流体被引入到该入口中,并且其一端形成有入口,并具有与液压箱连通的一个或多个连通孔 形成在其外周面上; 在提花板内滑动的主提升阀; 提供在主提升阀内的提升阀弹簧; 一个阀片,其一端插入主提升阀中以与提升阀弹簧的一端接触; 设置成插入形成在所述阀片的端部上的开孔中的锥体; 设置在阀片内的调节螺丝; 以及在调节螺钉内滑动的活塞。

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