公开(公告)号：US20120143460A1

公开(公告)日：2012-06-07

申请号：US13311082

申请日：2011-12-05

申请人： Naoki SUGANO ,  Satoshi Maekawa ,  Takahiro Kobayashi

发明人： Naoki SUGANO ,  Satoshi Maekawa ,  Takahiro Kobayashi

IPC分类号： F02D28/00

CPC分类号： F02D28/00

摘要： An engine control apparatus includes a governor and a controller which derives a lever operation-related rotational speed control target value derives an accelerator operation-related rotational speed control target value-corresponding to a detected operation amount of the accelerator member, based on an accelerator operation/rotational speed correlation function defining a relationship between the rotational speed control target value and the operation amount of the accelerator member; performs a lower value selection for selecting a lower one of the derived lever operation-related rotational speed control target value and accelerator operation-related rotational speed control target value; and causes the governor to control the rotational speed of the engine such that the rotational speed of the engine is set to the rotational speed control target value selected by the lower value selection.

摘要翻译： 发动机控制装置包括调速器和控制器，其导出与操作有关的转速控制目标值，基于加速器操作，导出与加速器构件的检测到的操作量相对应的加速器操作相关的转速控制目标值 /转速相关函数，其定义转速控制目标值与加速器构件的操作量之间的关系; 执行较低值选择，以选择导出杆操作相关转速控制目标值和加速器操作相关的转速控制目标值中的较低者; 并且使调速器控制发动机的转速，使得发动机的转速被设定为由较低值选择选择的转速控制目标值。

公开(公告)号：US20120285159A1

公开(公告)日：2012-11-15

申请号：US13467340

申请日：2012-05-09

申请人： Naoki SUGANO ,  Satoshi Maekawa ,  Katsuki Yamagata ,  Takaharu Michida ,  Hiroo Kondo ,  Naoya Kitazumi ,  Naoto Hori

发明人： Naoki SUGANO ,  Satoshi Maekawa ,  Katsuki Yamagata ,  Takaharu Michida ,  Hiroo Kondo ,  Naoya Kitazumi ,  Naoto Hori

IPC分类号： F15B15/02 ,  F15B15/20

CPC分类号： B66D1/44 ,  F15B11/0445 ,  F15B2211/20546 ,  F15B2211/3116 ,  F15B2211/40569 ,  F15B2211/46 ,  F15B2211/7058 ,  F15B2211/761

摘要： Provided is an apparatus provided in a working machine to lower a load, comprising a hydraulic pump, a hydraulic actuator, a manipulation device having a manipulation member, a meter-in flow control device, a meter-out flow control device, a back pressure valve, a regeneration fluid passage branched from the meter-out fluid passage at a position upstream of the back pressure valve and merged with the meter-in fluid passage, and a check valve. The meter-in flow control device controls a meter-in flow rate in a region of the meter-in fluid passage upstream of a merging point with the regeneration fluid passage. The meter-out flow control device controls a meter-out flow rate in a region of the meter-out fluid passage upstream of a branching point of the regeneration fluid passage so as to make the meter-out flow rate be greater than the meter-in flow rate.

摘要翻译： 提供了一种设置在作业机中以降低负载的装置，包括液压泵，液压致动器，具有操作构件的操纵装置，计量流量控制装置，流出流量控制装置，背压 阀，在背压阀的上游位置从流出液流路分支的再生流体通道，并与入口流体通路合流，以及止回阀。 计量流量控制装置控制在与再生流体通道的汇合点上游的流入通道的区域中的计量流量。 出口流量控制装置控制在再生流体通道的分支点上游的排出流体通道的区域中的流出流量，以使流出流量大于流量计流量， 流量。

公开(公告)号：US20120285152A1

公开(公告)日：2012-11-15

申请号：US13467453

申请日：2012-05-09

申请人： Naoki SUGANO ,  Satoshi Maekawa ,  Katsuki Yamagata ,  Takaharu Michida ,  Hiroo Kondo ,  Naoya Kitazumi ,  Naoto Hori

发明人： Naoki SUGANO ,  Satoshi Maekawa ,  Katsuki Yamagata ,  Takaharu Michida ,  Hiroo Kondo ,  Naoya Kitazumi ,  Naoto Hori

IPC分类号： F15B15/20

CPC分类号： B66D1/44 ,  F15B11/0445 ,  F15B2211/20546 ,  F15B2211/3116 ,  F15B2211/40569 ,  F15B2211/46 ,  F15B2211/7058 ,  F15B2211/761

摘要： Provided is an apparatus to lower a load, comprising a hydraulic pump, a hydraulic actuator having first and second ports, a manipulation device, a hydraulic circuit including meter-in and meter-out flow passages for the first and second ports respectively and a regeneration flow passage with a check valve, a control valve, a meter-out flow controller adjusting a meter-out flow rate according to the manipulation device, a back pressure valve, and a non-regeneration operation relief valve whose set pressure is not less than a sum of a minimum set pressure of the back pressure valve, an inlet-outlet pressure difference of the meter-out flow controller when the meter-out flow rate is maximum and a discharge flow rate of the hydraulic pump is maximum, and an actuator pressure difference for driving the hydraulic actuator with no load, and not less than a maximum set pressure of the back pressure valve.

摘要翻译： 提供了一种降低负载的装置，包括液压泵，具有第一和第二端口的液压致动器，操纵装置，液压回路，分别包括用于第一和第二端口的输入和流出流动通道，再生 具有止回阀的流路，控制阀，根据操作装置调节流出量的出口流量控制器，背压阀和设定压力不小于的再生操作释放阀 背压阀的最小设定压力的总和，流出量流量最大时的出口流量控制器的入口压力差和液压泵的排出流量最大的致动器 用于无负载驱动液压致动器的压力差，并且不小于背压阀的最大设定压力。