公开(公告)号：US20030145721A1

公开(公告)日：2003-08-07

申请号：US10356586

申请日：2003-02-03

Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD

Inventor： Hidekazu Oka ,  Kazuhiko Fujii ,  Naoki Sugano ,  Etsujiro Imanishi

IPC: F15B011/08

CPC classification number: F15B21/008 ,  E02F9/2207 ,  E02F9/2228 ,  E02F9/2285 ,  F15B11/044 ,  F15B21/08 ,  F15B2211/30505 ,  F15B2211/30525 ,  F15B2211/3111 ,  F15B2211/329 ,  F15B2211/40515 ,  F15B2211/41554 ,  F15B2211/46 ,  F15B2211/7053 ,  F15B2211/75

Abstract: The present invention relates to a control system and method for a hydraulic working machine characterized by having a construction wherein a flow discharge control valve is disposed in a discharge-side pipe line of a main flow control valve, the amount of operation of an operating lever is converted to a pilot pressure by a remote controlled valve, the pilot pressure is then input to a controller and is calculated into a pressure change speed as operation speed, in a pressure change speed calculator, further, the operation speed is calculated into an electromagnetic valve current in an electromagnetic valve current calculator, then the electromagnetic proportional valve current is output to an electromagnetic proportional valve from a command unit, and the degree of opening of the discharge flow control valve is controlled with a secondary pressure in the electromagnetic proportional valve. According to this construction, it is possible to diminish impact and vibration which occur when there is performed a sudden operation, and also possible to improve the operability for braking and stopping an actuator.

Abstract translation: 本发明涉及一种液压加工机械的控制系统和方法，其特征在于具有以下结构：在主流量控制阀的排出侧管路中设置有排气控制阀，操作杆的操作量 通过遥控阀转换为先导压力，然后将先导压力输入到控制器，并将其计算为作为操作速度的压力变化速度，在压力变化速度计算器中，运算速度被计算为电磁 在电磁阀电流计算器中的阀电流，则电磁比例阀电流从指令单元输出到电磁比例阀，并且在电磁比例阀中以二次压力控制排出流量控制阀的打开程度。 根据这种结构，可以减少在突然的操作时发生的冲击和振动，并且还可以提高制动和停止致动器的可操作性。

公开(公告)号：US20030234213A1

公开(公告)日：2003-12-25

申请号：US10452454

申请日：2003-06-03

Applicant: KOBELCO CONSTRUCTION MACHINERY CO., LTD.

Inventor： Tomohiko Asakage ,  Kazuhiko Fujii ,  Saburo Mori ,  Tomoshige Tanaka

IPC: B01D029/33

CPC classification number: B01D29/15 ,  B01D29/54 ,  B01D29/96 ,  B01D2201/40

Abstract: The prevent invention provides an oil filter comprising a filter element housed in a casing, the filter element being formed of two or more cylindrical element pieces piled on top of another in the height direction and attachably and detachably connected through connecting members. Accordingly, the efficiency in each of manufacture, stock control and storage of the filter element can be improved, and the cost can be also reduced.

Abstract translation: 本发明提供一种油过滤器，其包括容纳在壳体中的过滤元件，所述过滤元件由在高度方向上堆叠在另一个顶部上的两个或更多个圆柱形元件形成，并且通过连接构件可拆卸地连接。 因此，可以提高过滤元件的制造，库存控制和存储的效率，并且还可以降低成本。