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    Independent metering valve control system and method
    32.
    发明授权
    Independent metering valve control system and method 有权
    独立计量阀控制系统及方法

    公开(公告)号：US07251935B2

    公开(公告)日：2007-08-07

    申请号：US11214905

    申请日：2005-08-31

    申请人： Jiao Zhang ,  Pengfei Ma ,  Aleksandar Egelja ,  Michael T. Verkuilen

    发明人： Jiao Zhang ,  Pengfei Ma ,  Aleksandar Egelja ,  Michael T. Verkuilen

    IPC分类号： F16D31/02 ,  F15B13/04

    CPC分类号： F15B21/082 ,  F15B11/006 ,  F15B11/028 ,  F15B11/042 ,  F15B11/044 ,  F15B2211/30575 ,  F15B2211/327 ,  F15B2211/351 ,  F15B2211/353 ,  F15B2211/6313 ,  F15B2211/6653 ,  F15B2211/6654 ,  F15B2211/6658

    摘要： A hydraulic control system has an actuator with first and second chambers, first and second valves having elements movable to fill and drain the first and second chambers, and at least one sensor configured to generate a load signal indicative of a load on the fluid actuator. The system has an interface device movable to generate a desired velocity signal of the actuator. The system has a controller in communication with the first and second valves, the at least one sensor, and the interface device. The controller is configured to move the element of the first valve to a position based on the desired velocity signal and to move the element of the second valve to a position based on the load signal and a desired pressure within the second chamber.

    摘要翻译： 液压控制系统具有具有第一和第二腔室的致动器，第一和第二阀具有可移动以填充和排出第一和第二腔室的元件，以及配置成产生指示致动器上的负载的负载信号的至少一个传感器。 该系统具有可移动以产生致动器的期望速度信号的接口装置。 该系统具有与第一和第二阀，至少一个传感器和接口装置连通的控制器。 控制器被配置为基于期望的速度信号将第一阀的元件移动到位置，并且基于负载信号和第二室内的期望压力将第二阀的元件移动到位置。

    Valve gradually communicating a pressure signal
    33.
    发明授权
    Valve gradually communicating a pressure signal 有权
    阀逐渐传达压力信号

    公开(公告)号：US07243493B2

    公开(公告)日：2007-07-17

    申请号：US11117384

    申请日：2005-04-29

    申请人： Pengfei Ma ,  Jiao Zhang ,  Jeff L. Kuehn ,  Kalpesh N. Patel

    发明人： Pengfei Ma ,  Jiao Zhang ,  Jeff L. Kuehn ,  Kalpesh N. Patel

    IPC分类号： F15B13/04

    CPC分类号： F15B11/006 ,  F15B11/05 ,  F15B2211/20546 ,  F15B2211/30535 ,  F15B2211/30575 ,  F15B2211/6054 ,  F15B2211/7053 ,  Y10T137/8667

    摘要： A valve is provided for a hydraulic system having a source of pressurized fluid, a fluid actuator, and a proportional pressure compensating valve. The valve has a bore in fluid communication with the source and the fluid actuator. The valve also has a valve element disposed in the bore and movable between a flow blocking position and a flow passing position to selectively fluidly communicate the source with the fluid actuator. The valve also has a valve signal passageway disposed within the valve element and configured to be in fluid communication with a pressurized fluid having a signal pressure indicative of pressure supplied to the fluid actuator. The valve further has first and second orifices disposed within the valve element in fluid communication with the valve signal passageway and the bore. The valve signal passageway is configured to communicate the signal pressure with the first and second orifices. Movement of the valve element from the flow blocking position to the flow passing position fluidly communicates the first orifice with a system signal passageway before the second orifice, and fluidly communicates both the first and second orifices with the system signal passageway when the valve element is in the flow passing position.

    摘要翻译： 为具有加压流体源的液压系统，流体致动器和比例压力补偿阀提供阀。 阀具有与源和流体致动器流体连通的孔。 阀还具有设置在孔中的阀元件，并且可在阻流位置和流动通过位置之间移动，以选择性地将源与流体致动器流体连通。 阀还具有设置在阀元件内的阀信号通道，并被构造成与加压流体流体连通，该加压流体具有指示供应给流体致动器的压力的信号压力。 阀还具有设置在阀元件内的与阀信号通道和孔流体连通的第一和第二孔。 阀信号通道被配置为将信号压力与第一和第二孔相通。 阀元件从流动阻挡位置到流通位置的移动使第一孔口与第二孔口之前的系统信号通道流体连通，并且当阀门元件处于第二孔口时，将第一和第二孔口与系统信号通道流体连通 流通位置。

    Independent metering valve control system and method
    36.
    发明申请
    Independent metering valve control system and method 有权
    独立计量阀控制系统及方法

    公开(公告)号：US20070044465A1

    公开(公告)日：2007-03-01

    申请号：US11214905

    申请日：2005-08-31

    申请人： Jiao Zhang ,  Pengfei Ma ,  Aleksandar Egelja ,  Michael Verkuilen

    发明人： Jiao Zhang ,  Pengfei Ma ,  Aleksandar Egelja ,  Michael Verkuilen

    IPC分类号： F16D31/02

    CPC分类号： F15B21/082 ,  F15B11/006 ,  F15B11/028 ,  F15B11/042 ,  F15B11/044 ,  F15B2211/30575 ,  F15B2211/327 ,  F15B2211/351 ,  F15B2211/353 ,  F15B2211/6313 ,  F15B2211/6653 ,  F15B2211/6654 ,  F15B2211/6658

    摘要： A hydraulic control system for a work machine is disclosed. The hydraulic control system has a fluid actuator with first and second chambers, first and second metering valves having valve elements movable to fill and drain the first and second chambers respectively, and at least one fluid sensor configured to generate a load signal indicative of a load on the fluid actuator. The hydraulic control system also has an operator interface device movable to generate a desired velocity signal of the fluid actuator. The hydraulic control system further has a controller in communication with the first and second metering valves, the at least one fluid sensor, and the operator interface device. The controller is configured to move the valve element of the first metering valve to a position based on the desired velocity signal, to determine a desired pressure for the second chamber based on the load signal and a pressure associated with the first chamber, and to move the valve element of the second metering valve to a position based on the determined desired pressure.

    摘要翻译： 公开了一种用于作业机械的液压控制系统。 液压控制系统具有带有第一和第二腔室的流体致动器，第一和第二计量阀具有可移动以分别填充和排出第一和第二腔室的阀元件，以及至少一个流体传感器，其配置成产生指示负载 在流体致动器上。 液压控制系统还具有可移动以产生流体致动器的期望速度信号的操作者界面装置。 液压控制系统还具有与第一和第二计量阀，至少一个流体传感器和操作者界面装置连通的控制器。 控制器被配置为基于期望的速度信号将第一计量阀的阀元件移动到位置，以基于负载信号和与第一室相关联的压力来确定用于第二室的期望压力，并且移动 所述第二计量阀的阀元件基于所确定的期望压力而位于一个位置。

    Hydraulic system having an external pressure compensator
    37.
    发明授权
    Hydraulic system having an external pressure compensator 有权
    液压系统具有外部压力补偿器

    公开(公告)号：US08479504B2

    公开(公告)日：2013-07-09

    申请号：US12605465

    申请日：2009-10-26

    申请人： Philippe Vande Kerckhove ,  James A. Aardema ,  Pengfei Ma ,  Kalpesh Patel

    发明人： Philippe Vande Kerckhove ,  James A. Aardema ,  Pengfei Ma ,  Kalpesh Patel

    IPC分类号： F15B11/05 ,  F15B11/044

    CPC分类号： F15B11/05 ,  E02F9/2207 ,  F15B11/006 ,  F15B2211/20546 ,  F15B2211/30535 ,  F15B2211/30575 ,  F15B2211/3144 ,  F15B2211/40561 ,  F15B2211/50518 ,  F15B2211/6051 ,  F15B2211/6054 ,  F15B2211/65 ,  F15B2211/7053

    摘要： A hydraulic system for a machine is disclosed. The hydraulic system has a source of pressurized fluid and a fluid actuator with a first chamber. The hydraulic system also has a first valve configured to selectively fluidly communicate the source with the first chamber. The first valve further includes a first element movable between a flow passing, at which fluid from the source flows to the first chamber, and a flow blocking position, at which fluid from the source is blocked from the first chamber and a second element configured to selectively drain a control passageway associated with the first element to cause the first element to move. The hydraulic system further has a proportional pressure compensating valve configured to control a pressure of a fluid directed between the source and the first valve dependent upon the pressure of the control passageway.

    摘要翻译： 公开了一种用于机器的液压系统。 液压系统具有加压流体源和具有第一室的流体致动器。 液压系统还具有构造成选择性地将源与第一室流体连通的第一阀。 第一阀还包括第一元件，第一元件可以在通过流体之间移动，流体从源流出到第一室，流动阻挡位置在该流动阻挡位置处，来自源的流体被阻挡在第一室中，第二元件被配置为 选择性地排出与第一元件相关联的控制通道以使第一元件移动。 液压系统还具有比例压力补偿阀，该比例压力补偿阀被配置为根据控制通道的压力来控制引导在源和第一阀之间的流体的压力。

    Apparatus of extracting aromatic compounds from plants using a solvent in sub-zero temperature and process thereof
    38.
    发明申请
    Apparatus of extracting aromatic compounds from plants using a solvent in sub-zero temperature and process thereof 审中-公开
    在零下温度下使用溶剂从植物中提取芳族化合物的方法及其工艺

    公开(公告)号：US20120145531A1

    公开(公告)日：2012-06-14

    申请号：US13372506

    申请日：2012-02-14

    申请人： Kai Lin ,  Hongliang Lu ,  Pengfei Ma

    发明人： Kai Lin ,  Hongliang Lu ,  Pengfei Ma

    IPC分类号： B01D3/40

    CPC分类号： C11B9/025 ,  B01D11/0288 ,  B01D11/0296

    摘要： An extracting process including adding powder into a first flask in a first cooling bath maintained at a temperature; adding solvent into the first flask and sealing the first flask so that the solvent dissolves the predetermined powder to form a homogeneous solution; removing the first flask; and connecting the first flask to a first one of second flasks, interconnecting the second flasks, and connecting a third flask to the last second flask wherein a quantity of aromatic compounds absorbent fluid is contained in each second flask which is placed in a second cooling bath maintained at the temperature, the third flask is placed in a third cooling bath maintained at another temperature, the solution evaporates to flow vaporized aromatic compounds to the second flasks for absorption by the aromatic compounds absorbent fluid, and the vaporized solvent reaches the third flask to be condensed and collected.

    摘要翻译： 一种提取方法，包括在保持在一个温度的第一个冷却浴中的第一个烧瓶中加入粉末; 向第一烧瓶中加入溶剂并密封第一烧瓶，使溶剂溶解预定粉末以形成均匀溶液; 取出第一个烧瓶; 并将第一烧瓶连接到第二烧瓶中的第一烧瓶中，将第二烧瓶相互连接，并将第三烧瓶连接到最后的第二个烧瓶，其中在放置在第二冷却槽中的第二烧瓶中装入一定量的芳香族化合物吸收剂流体 保持在温度下，将第三烧瓶置于保持在另一温度的第三冷却浴中，蒸发溶剂使蒸发的芳族化合物流到第二烧瓶中，以吸收芳香族化合物吸收剂，并将汽化溶剂到达第三烧瓶 被浓缩和收集。

    Process of extracting aromatic compounds from plants using bromomethane as a solvent
    39.
    发明申请
    Process of extracting aromatic compounds from plants using bromomethane as a solvent 审中-公开
    使用溴甲烷作为溶剂从植物中提取芳香族化合物的方法

    公开(公告)号：US20100314240A1

    公开(公告)日：2010-12-16

    申请号：US12571419

    申请日：2009-09-30

    申请人： Kai Lin ,  Hongliang Lu ,  Pengfei Ma

    发明人： Kai Lin ,  Hongliang Lu ,  Pengfei Ma

    IPC分类号： B01D3/34

    CPC分类号： C11B9/025

    摘要： An extracting process includes adding 30 g of honeysuckle into a first flask in a cooling bath; adding 150 g bromomethane as a solvent into the first flask and sealing the first flask so that the solvent dissolves the honeysuckle powder to form a solution after about 15 hours; removing the first flask; and connecting the first flask to a first second flask and connecting a third flask to a last second flask wherein the second flasks are interconnected, each second flask is placed in another cooling bath, the third flask is placed in still another cooling bath, the solution evaporates to flow the vaporized aromatic compounds thereof to the second flasks for absorption by aromatic compounds absorbent fluid contained in each second flask, and the vaporized bromomethane of the solution reaches the third flask to be cooled and collected in the form of liquid.

    摘要翻译： 提取方法包括在冷却浴中的第一烧瓶中加入30g金银花; 将150g溴甲烷作为溶剂加入到第一烧瓶中并密封第一烧瓶，使得溶剂在约15小时后溶解金银花粉以形成溶液; 取出第一个烧瓶; 并将第一烧瓶连接到第一个第二个烧瓶并将第三个烧瓶连接到最后一个第二个烧瓶，其中第二个烧瓶相互连接，将每个第二个烧瓶放置在另一个冷却槽中，将第三个烧瓶置于另一个冷却槽中， 蒸发以将其蒸发的芳族化合物流动到第二烧瓶中，用于由包含在每个第二烧瓶中的芳族化合物吸收剂流体吸收，并且溶液的汽化溴甲烷到达第三烧瓶以被冷却并以液体形式收集。

    Hydraulic system having an external pressure compensator
    40.
    发明申请
    Hydraulic system having an external pressure compensator 审中-公开
    液压系统具有外部压力补偿器

    公开(公告)号：US20080295681A1

    公开(公告)日：2008-12-04

    申请号：US11806383

    申请日：2007-05-31

    申请人： Pengfei Ma ,  Philippe Georges Vande Kerckhove ,  James Alvin Aardema ,  Kalpesh Patel

    发明人： Pengfei Ma ,  Philippe Georges Vande Kerckhove ,  James Alvin Aardema ,  Kalpesh Patel

    IPC分类号： F15B13/04

    CPC分类号： F15B11/05 ,  E02F3/7618 ,  E02F3/844 ,  F15B11/006 ,  F15B2211/20546 ,  F15B2211/30535 ,  F15B2211/30575 ,  F15B2211/3144 ,  F15B2211/40561 ,  F15B2211/50518 ,  F15B2211/6051 ,  F15B2211/6054 ,  F15B2211/65 ,  F15B2211/7053

    摘要： A hydraulic system for a machine is disclosed. The hydraulic system has a source of pressurized fluid and a fluid actuator with a first chamber. The hydraulic system also has a first valve configured to selectively fluidly communicate the source with the first chamber. The first valve further includes a first element movable between a flow passing, at which fluid from the source flows to the first chamber, and a flow blocking position, at which fluid from the source is blocked from the first chamber and a second element configured to selectively drain a control passageway associated with the first element to cause the first element to move. The hydraulic system further has a proportional pressure compensating valve configured to control a pressure of a fluid directed between the source and the first valve dependent upon the pressure of the control passageway.

    摘要翻译： 公开了一种用于机器的液压系统。 液压系统具有加压流体源和具有第一室的流体致动器。 液压系统还具有构造成选择性地将源与第一室流体连通的第一阀。 第一阀还包括第一元件，第一元件可以在通过流体之间移动，流体从源流出到第一室，流动阻挡位置在该流动阻挡位置处，来自源的流体被阻挡在第一室中，第二元件被配置为 选择性地排出与第一元件相关联的控制通道以使第一元件移动。 液压系统还具有比例压力补偿阀，该比例压力补偿阀被配置为根据控制通道的压力来控制引导在源和第一阀之间的流体的压力。