公开(公告)号：US20100319338A1

公开(公告)日：2010-12-23

申请号：US12796847

申请日：2010-06-09

Applicant: Toshimichi IKEDA ,  Yang Koo LEE

Inventor： Toshimichi IKEDA ,  Yang Koo LEE

IPC: F16D31/02

CPC classification number: E02F9/2242 ,  E02F9/123 ,  F15B11/16 ,  F15B2211/20576 ,  F15B2211/3116 ,  F15B2211/31582 ,  F15B2211/7128

Abstract: A hydraulic circuit for an excavator is provided, which includes at least one first working device control valve having a first traveling control valve and a first boom control valve successively installed along a first center bypass line from a downstream side of a first hydraulic pump, at least one second working device control valve having a second traveling control valve and a second boom control valve successively installed along a second center bypass line from a downstream side of a second hydraulic pump, a third hydraulic pump providing fluid pressure to a swing motor installed on a third center bypass line, a swing control valve installed on a downstream side of the third hydraulic pump and shifted, in accordance with a valve switching signal input from the outside, to supply hydraulic fluid discharged from the third hydraulic pump to the swing motor, and a boom confluence line connected between an output port of the swing control valve and an input port of the boom control value to make the hydraulic fluid discharged from the third hydraulic pump join hydraulic fluid on the input port side of the boom control valve through the third center bypass line when the direction of the boom control valve is changed.

Abstract translation: 提供了一种用于挖掘机的液压回路，其包括至少一个第一工作装置控制阀，该第一工作装置控制阀具有第一行进控制阀和从第一液压泵的下游侧沿着第一中心旁通管连续安装的第一起重臂控制阀， 至少一个第二工作装置控制阀，具有第二行进控制阀和第二起重臂控制阀，第二起重臂控制阀从第二液压泵的下游侧沿着第二中心旁通管连续安装，第三液压泵向安装在 第三中心旁路管路，安装在第三液压泵的下游侧的回转控制阀，根据从外部输入的阀切换信号，将从第三液压泵排出的液压油供给回转马达， 以及连接在回转控制阀的输出端口和起重臂控制阀va的输入端口之间的吊杆汇合线 使得当第三液压泵排出的液压流体在动臂控制阀的方向改变时通过第三中心旁通管路连接在动臂控制阀的输入端口侧的液压流体。

公开(公告)号：US20100000211A1

公开(公告)日：2010-01-07

申请号：US12492170

申请日：2009-06-26

Applicant: Toshimichi IKEDA ,  Yang Koo LEE

Inventor： Toshimichi IKEDA ,  Yang Koo LEE

IPC: F16D31/02

CPC classification number: E02F9/2239 ,  E02F9/2232 ,  E02F9/2282 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/17 ,  F15B2211/20576 ,  F15B2211/30525 ,  F15B2211/3116 ,  F15B2211/31588 ,  F15B2211/7135 ,  F15B2211/7142 ,  F15B2211/75

Abstract: A hydraulic circuit for an excavator is provided, which includes first to third hydraulic pumps, a first traveling control valve and a first boom control valve successively installed along a first center bypass line from a downstream side of the first hydraulic pump, a second traveling control valve and a second boom control valve successively installed along a second center bypass line from a downstream side of the second hydraulic pump, a swing control valve connected between the third hydraulic pump and a swing motor to control the operation of the swing motor in accordance with an external valve switching signal, and a confluence line connected between a third center bypass line and a flow path of the second boom control valve to make hydraulic fluid from the third hydraulic pump join hydraulic fluid in a neutral position of the swing control valve. According to the hydraulic control circuit, the swing motor can be controlled independently by the fluid pressure being applied through the third hydraulic pump, and the speed of actuators can be kept without insufficiency of the flow rate during the swing composite operation through joining of the hydraulic fluid from the hydraulic pump and the hydraulic fluid from the working devices such as the boom, arm, and the like.

Abstract translation: 提供了一种用于挖掘机的液压回路，其包括第一至第三液压泵，第一行进控制阀和第一起重臂控制阀，所述第一行程控制阀和第一起重臂控制阀从第一液压泵的下游侧沿着第一中心旁通管路依次安装，第二行驶控制 阀和第二起重臂控制阀，其从第二液压泵的下游侧沿着第二中心旁通管路依次安装，连接在第三液压泵和回转马达之间的回转控制阀，以根据 外部阀切换信号，以及连接在第三中心旁通管路和第二起重臂控制阀的流路之间的汇流管，以使来自第三液压泵的液压流体在回转控制阀的中立位置中接合液压流体。 根据液压控制回路，可以通过第三液压泵施加的流体压力独立地控制回转马达，并且通过液压连接可以保持在摆动复合操作期间的致动器的速度，而不会使挥杆复合操作中的流量不足 来自液压泵的流体和来自诸如起重臂，臂等的工作装置的液压流体。

公开(公告)号：US20100133042A1

公开(公告)日：2010-06-03

申请号：US12628082

申请日：2009-11-30

Applicant: Toshimichi IKEDA ,  Gyen Soo CHO ,  Han Jin KIM

Inventor： Toshimichi IKEDA ,  Gyen Soo CHO ,  Han Jin KIM

IPC: E06C5/00 ,  E06C5/32

CPC classification number: E02F9/00 ,  B60R3/00 ,  E02F9/0816 ,  E02F9/0833

Abstract: A footstep for an excavator is provided, in which the footstep, that is fixed to a track side frame so that an operator can get on/off a cab and so on therethrough, can be prevented from being damaged by rocks and so on during operation of the excavator in an inferior working environment. The footstep for an excavator, mounted on a track side frame of the excavator, includes an upper step composed of side plates formed on left and right sides to face each other, and a front plate formed in a body with the side plates and having through-holes formed on left and right sides thereof, to protect a head part of a fastening member, which fixes the footstep to the side frame, from an external impact; a fixing plate having both ends fixed to inner surfaces of the side plates to fix the upper step to the side frame by the fastening member that is fastened to pass through the through-holes; and a lower step fixed to lower ends of elastic pieces having upper ends fixed to the side plates, respectively.

Abstract translation: 提供了一种用于挖掘机的脚步，其中可以防止在操作期间固定到轨道侧框架以使得驾驶员能够通过其驾驶室等来驾驶室等的脚步被岩石等损坏 的挖掘机在劣质的工作环境中。 安装在挖掘机的履带侧框架上的挖掘机的脚步包括由在左右两侧形成的侧板构成的上部台阶，以及与侧板形成在主体中的前板， 在其左侧和右侧形成的孔，以保护固定构件的头部部分，其将脚步固定到侧框架，以防止外部冲击; 固定板，其两端固定在侧板的内表面上，通过紧固以穿过通孔的紧固构件将上台阶固定在侧框架上; 并且分别固定到具有固定到侧板的上端的弹性片的下端的下部台阶。

公开(公告)号：US20100132347A1

公开(公告)日：2010-06-03

申请号：US12628909

申请日：2009-12-01

Applicant: Toshimichi IKEDA ,  Hoy Jong Jun ,  Chan Ju Na

Inventor： Toshimichi IKEDA ,  Hoy Jong Jun ,  Chan Ju Na

IPC: F01N3/02

CPC classification number: F01N3/055 ,  E02F9/00 ,  E02F9/0866 ,  F01N13/082 ,  F01N2590/08 ,  Y02T10/20

Abstract: An exhaust cooling apparatus for construction equipment, having a cooling fan taking external air into an engine room for heat exchange with a oil cooler and a radiator, and a blower flowing air out of the engine room to the atmosphere. In the apparatus, an outlet of an exhaust pipe for emitting exhaust gas from an engine is fixedly disposed toward a discharge direction of the blower. The discharge direction of the blower is upwardly vertical to the ground. The exhaust cooling apparatus is effective in preventing combustible matters from burning, or preventing plant lives from withering, due to hot exhaust gas around construction equipment such as excavator, by discharging the hot exhaust gas to the atmosphere after cooling it down through air flowing out of the engine room.

Abstract translation: 一种用于建筑设备的排气冷却装置，其具有将外部空气引入发动机室中以与油冷却器和散热器进行热交换的冷却风扇，以及将空气从发动机室流出到大气中的鼓风机。 在该装置中，朝向鼓风机的排出方向固定地设置用于从发动机排出废气的排气管的出口。 鼓风机的排放方向向上垂直于地面。 排气冷却装置有效地防止可燃物质燃烧，或者由于挖掘机等施工设备周围的热排气，防止植物的生命枯竭，通过从其中流出的空气冷却下来，将热废气排出到大气中 机房。