公开(公告)号：EP2681430B1

公开(公告)日：2018-12-12

申请号：EP12700938.9

申请日：2012-01-04

Applicant: Robert Bosch GmbH

Inventor： IMMENDOERFER, Ingo ,  GROSSMANN, Alex ,  SIEBER, Udo ,  BUEHRLE, Ralf ,  TOSUN, Zeynep

IPC: F02D11/10 ,  F02D41/06 ,  F02D41/04

CPC classification number: F15B11/08 ,  F02D9/105 ,  F02D11/107 ,  F02D41/042 ,  F02D41/062 ,  F02D2011/108 ,  F02D2200/0404

公开(公告)号：EP3339516A3

公开(公告)日：2018-10-24

申请号：EP17209836.0

申请日：2017-12-21

Applicant: CNH Industrial Italia S.p.A.

Inventor： Berggren, Quinton ,  Lewis, Brady D. ,  Natzke, David R. ,  Newlin, Timothy A. ,  Szurpicki, Paul F. ,  Grossman, Allan ,  Detra, Neil

IPC: E02F3/96 ,  E02F9/22 ,  F15B11/046 ,  B62D49/06 ,  E02F9/20 ,  F15B11/08 ,  F15B13/02 ,  F15B21/02 ,  G05B13/02

CPC classification number: E02F9/2225 ,  B62D49/06 ,  E02F3/96 ,  E02F3/961 ,  E02F9/2004 ,  E02F9/22 ,  E02F9/2235 ,  E02F9/2267 ,  E02F9/2271 ,  F15B11/046 ,  F15B11/08 ,  F15B13/022 ,  F15B21/02 ,  G05B19/46 ,  G05B2219/41273 ,  G05B2219/45017

Abstract: A dual mode control system for a work vehicle includes a hydraulic system configured to drive a loader assembly and a dozer assembly coupled to the work vehicle. The hydraulic system includes a fluid delivery system comprising a plurality of flow paths fluidly coupled to a hydraulic pump. The hydraulic system includes a valve assembly configured to regulate diversion of fluid into a first and a second hydraulic cylinders coupled to the fluid delivery system to adjust the loader assembly, or into a third cylinder coupled to the fluid delivery system to adjust the dozer assembly. The dual mode control system also includes a controller operably coupled to the valve assembly, and one or more user interfaces coupled to the controller to enable an operator to provide inputs to cause the controller to adjust the valve assembly, and to thereby adjust the loader assembly or the dozer assembly.

公开(公告)号：EP2952638B1

公开(公告)日：2018-10-24

申请号：EP15170506.8

申请日：2015-06-03

Applicant: Hitachi Construction Machinery Co., Ltd.

Inventor： NISHIKAWA, Shinji ,  ISHIKAWA, Kouji ,  SATAKE, Hidetoshi ,  IMURA, Shinya ,  IZUMI, Shiho

IPC: E02F9/12 ,  E02F9/20 ,  E02F9/22 ,  F15B11/08 ,  F15B11/042

CPC classification number: F15B11/042 ,  E02F9/123 ,  E02F9/2095 ,  E02F9/2203 ,  E02F9/2228 ,  E02F9/2282 ,  E02F9/2296 ,  F15B11/08 ,  F15B2211/20515 ,  F15B2211/30525 ,  F15B2211/3059 ,  F15B2211/6306 ,  F15B2211/6346 ,  F15B2211/6355 ,  F15B2211/6654 ,  F15B2211/7058 ,  F15B2211/7135 ,  F15B2211/75

Abstract: An object of the present invention is to provide a hybrid construction machine having a hydraulic motor (3) and an electric motor (14) as driving sources for a swing structure (50), the hybrid construction machine being configured to provide the operator with high manipulability during combined swing operation. This invention provides a hybrid construction machine including a swing structure (50), a hydraulic pump (1), a hydraulic swing motor (3) driving the swing structure (50) using hydraulic fluid from the hydraulic pump (1), an electric swing motor (14) driving the swing structure (50) in conjunction with the hydraulic swing motor (3), a boom cylinder (16) operated simultaneously with the swing structure (50) at times and driven by the hydraulic fluid from the hydraulic pump (1), a first directional control valve (28) controlling flow of the hydraulic fluid supplied from the hydraulic pump (1) to the hydraulic swing motor (3), a second directional control valve (29) controlling the flow of the hydraulic fluid returning from the hydraulic swing motor (3), and a controller (13) and solenoid pressure reducing valves which prevent operation of the second directional control valve (29) when the boom cylinder (16) is operated simultaneously with the swing structure (50).

公开(公告)号：EP3098417B1

公开(公告)日：2018-10-10

申请号：EP15737426.5

申请日：2015-01-19

Applicant: IHI Corporation

Inventor： YAMADA Takeshi ,  UMEMOTO Yoshiyuki ,  KOBAYASHI Machiko

IPC: F02B75/04 ,  F02B75/32 ,  F04B19/22 ,  F15B11/08

CPC classification number: F02B75/045 ,  F04B19/22 ,  F15B11/08 ,  F15B2211/50536 ,  F15B2211/7051

Abstract: Provided is an engine that includes a first member (piston rod (112a)), a second member (crosshead pin (114a)), a first hydraulic pressure chamber (168a) formed between facing parts of the first and second members, and a hydraulic pressure adjustment mechanism (196). The hydraulic pressure adjustment mechanism has a plunger pump (182) having a pump cylinder (182a) and a plunger (182b) and configured to supply hydraulic oil in the pump cylinder to the first hydraulic pressure chamber by pushing the plunger into the pump cylinder. The plunger pump moves in a stroke direction along with a piston and a power transmission section, and the plunger is pushed into the pump cylinder by receiving a reaction force opposite to reciprocating forces of the piston and the power transmission section.

公开(公告)号：EP2947042B1

公开(公告)日：2018-07-18

申请号：EP15168334.9

申请日：2015-05-20

Applicant: Butler Engineering & Marketing S.p.A.

Inventor： Gonzaga, Tullio ,  Santi, Silvano

IPC: B66F7/06 ,  B66F7/08 ,  F15B11/08

CPC classification number: F15B11/08 ,  B66F7/065 ,  B66F7/08 ,  Y10T137/85954

Abstract: A device for feeding a fluid to a container comprising a supplying line (3) for supplying the fluid, an end (3a) for the inlet of the fluid into the supplying line (3), a dispensing end (3b) for dispensing the fluid into the container (2), and an opening/closing valve member (4) intercepting the supplying line (3) and which is movable between a closing position and an opening position.

公开(公告)号：EP3205887A4

公开(公告)日：2018-06-27

申请号：EP15848584

申请日：2015-09-04

Applicant: HITACHI CONSTRUCTION MACH CO

Inventor： YAMASHITA RYOHEI ,  IMURA SHINYA ,  ISHIKAWA KOUJI ,  MORIKI HIDEKAZU

IPC: F15B11/044 ,  E02F9/22 ,  F15B11/028 ,  F15B11/08

CPC classification number: E02F9/22 ,  F15B11/028 ,  F15B11/04 ,  F15B11/044 ,  F15B11/08 ,  F15B2211/353 ,  F15B2211/40515 ,  F15B2211/41581 ,  F15B2211/46 ,  F15B2211/6313 ,  F15B2211/6346 ,  F15B2211/665 ,  F15B2211/7053 ,  F15B2211/761

Abstract: Provided is a hydraulic control system for a construction machine, including: a control valve (31) for controlling supply and discharge of hydraulic fluid to and from an arm cylinder (4); an operation lever (6) for controlling the position of a spool of the control valve (31); a meter-out flow passage (34) for passing therethrough hydraulic fluid discharged from the arm cylinder; a variable restrictor (23a) provided in the meter-out flow passage; pressure sensors (41, 42) for detecting a magnitude of a negative load applied by an external force to the arm cylinder in a same direction as an actuation direction of the arm cylinder; and a controller (45) for reducing an opening area of the variable restrictor (23a) according to an increase in the magnitude of the negative load calculated with a detection value from the pressure sensors (41, 42).

公开(公告)号：EP3333993A1

公开(公告)日：2018-06-13

申请号：EP17204778.9

申请日：2017-11-30

Applicant: CEMBRE S.p.A.

Inventor： BAREZZANI, Gualtiero ,  LUCIANI, Gianpaolo

IPC: H02G1/00 ,  B23D29/00 ,  B25F5/00

CPC classification number: B23D29/002 ,  B23D17/06 ,  B23D36/00 ,  B25B27/14 ,  B25F5/005 ,  F15B11/08 ,  F15B2211/20515 ,  F15B2211/63 ,  H02G1/005

Abstract: A cutting system (1) comprises a pump (3) adapted to increase the pressure of a hydraulic liquid, a working head (4) which can be positioned distanced from the pump (3) and having two jaws (5, 6) which can be displaced between an open position and a closed position for carrying out the cutting, a pressure flexible tube (7) connected between the pump (3) and the working head (4), a hand-held remote control (8) for actuating and controlling the pump (3) from a distance, a cutting detector (9) connected to the working head (4) to detect the completion of the cutting, actuation communication means (10) adapted to provide pump actuation signals from the remote control (8) to the pump (3), cutting confirmation communication means (11) adapted to provide cutting completion information from the cutting detector (9) to the user, wherein the actuation communication means (10) comprise a wireless connection and also the cutting confirmation communication means (11) comprise a wireless connection.

公开(公告)号：EP3306111A1

公开(公告)日：2018-04-11

申请号：EP16802856.1

申请日：2016-02-25

Applicant: Hitachi Construction Machinery Co., Ltd.

Inventor： SHIMIZU, Juri ,  SAITOH, Teppei ,  HIRAKU, Kenji ,  AKIYAMA, Yuki ,  TAKAHASHI, Hiromasa

IPC: F15B11/08 ,  F16K11/07

CPC classification number: F16K11/07 ,  F15B11/08 ,  F16H61/4104

Abstract: Disclosed is a work machine including a closed circuit system in which there is provided a flushing valve which realizes a satisfactory operability even when a load on a single rod cylinder is reversed, which is small in size, and which can cope with a high flow rate.
The flushing valve is equipped with: a valve main body; a spool which can select, in accordance with a position where the spool is arranged in the valve main body, connection between a first flow line and a third flow line, connection between a second flow line and the third flow line, or interruption of the connection between the first flow line, the second flow line, and the third flow line; a first liquid chamber that is provided inside the valve main body and into which a hydraulic working fluid from the first flow line flows; a first piston pressurizing the hydraulic working fluid having flowed into the first liquid chamber and moving the spool to a position where the second flow line and the third flow line are connected together, by the hydraulic pressure of the first liquid chamber; a second liquid chamber that is provided inside the valve main body and into which the hydraulic working fluid from the second flow line flows; and a second piston pressurizing the hydraulic working fluid having flowed into the second liquid chamber and moving the spool to a position where the first flow line and the third flow line are connected together, by the hydraulic pressure of the second liquid chamber.

Abstract translation: 本发明公开了一种包括闭路系统的作业机械，其中设置有冲洗阀，该冲洗阀即使在单个杆活塞杆上的负载相反时也实现了令人满意的可操作性，其尺寸小并且能够应对高流速 。 冲洗阀装备有：阀主体; 能够根据阀芯在阀主体内的配置位置选择第一流路与第三流路之间的连接，第二流路与第三流路之间的连接， 第一流动管线，第二流动管线和第三流动管线之间的连接; 第一液体室，所述第一液体室设置在所述阀主体内并且来自所述第一流动管线的液压工作流体流入所述第一液体室; 第一活塞，其通过所述第一液体室的液压，对流入所述第一液体室的所述液压工作流体进行加压，并将所述阀芯移动到所述第二流体管线和所述第三流体管线连接在一起的位置; 设置在所述阀主体内部并且来自所述第二流动管线的所述液压工作流体流入其中的第二液腔; 以及第二活塞，其通过所述第二液室的液压，对流入所述第二液室的所述液压工作流体进行加压，并将所述滑阀移动到所述第一流道和所述第三流道连接的位置。

公开(公告)号：EP3293145A1

公开(公告)日：2018-03-14

申请号：EP17158857.7

申请日：2017-03-02

Applicant: Hitachi Sumitomo Heavy Industries Construction Crane Co., Ltd.

Inventor： Miyoshi, Kota

IPC: B66C23/86

CPC classification number: B66C23/86 ,  B66C13/16 ,  B66C13/20 ,  B66C23/36 ,  B66C23/54 ,  F15B11/0445 ,  F15B11/08 ,  F15B13/0433

Abstract: The crane includes a swing brake device (20) installed between a hydraulic motor (2) and a control valve (6) and having a flow restrictor; a first backpressure detector detecting a motor backpressure between the flow restrictor and one of ports of the hydraulic motor (2); a second backpressure detector detecting a motor backpressure between the flow restrictor and the other port of the hydraulic motor (2); and a control device (13). The control device (13) has an external-force direction estimation unit (13b) that estimates a swing direction of an upperstructure (103) under an external force acting on the upperstructure (103) on the basis of a motor backpressure detected by the first backpuressure detector and a motor backpressure detected by the second backpressure during an operating state of the swing brake device (20). The control device (13) has a notification control unit (13h) that causes the notification device (19) to provide notification of the estimated swing direction of the upperstructure (103).

Abstract translation: 该起重机包括安装在液压马达（2）和控制阀（6）之间并具有限流器的摆动制动装置（20） 第一背压检测器，其检测所述限流器与所述液压马达（2）的一个端口之间的马达背压; 检测流量限制器与液压马达（2）的另一端口之间的马达背压的第二背压检测器; 和控制装置（13）。 控制装置13具有外力方向估计部13b，该外力方向估计部13b基于由第一检测部13检测到的电动机背压来估计在作用于上部旋转体103的外力的作用下的旋转体103的旋转方向。 在回转制动装置（20）的运行状态期间由第二背压检测到的背压检测器和马​​达背压。 控制装置（13）具有通知控制部（13h），该通知控制部（13h）使通知装置（19）通知推定回转体（103）的摆动方向。

公开(公告)号：EP3124799A4

公开(公告)日：2018-03-07

申请号：EP15769217

申请日：2015-03-12

Applicant: DOOSAN INFRACORE CO LTD

Inventor： CHO YONG LAK

IPC: F15B13/02 ,  E02F9/12 ,  E02F9/22 ,  F15B11/17

CPC classification number: E02F9/123 ,  E02F9/2004 ,  E02F9/2228 ,  E02F9/2267 ,  E02F9/2285 ,  E02F9/2292 ,  E02F9/2296 ,  F15B11/08 ,  F15B11/17 ,  F15B13/0401 ,  F15B2211/20546 ,  F15B2211/20553 ,  F15B2211/20576 ,  F15B2211/41554 ,  F15B2211/45 ,  F15B2211/575 ,  F15B2211/613 ,  F15B2211/6316 ,  F15B2211/67 ,  F15B2211/7058 ,  F15B2211/7135 ,  F15B2211/7142 ,  F15B2211/853 ,  F15B2211/8609 ,  F15B2211/8616

Abstract: The present disclosure relates to a method for controlling a swing motor in a hydraulic system and a hydraulic system. The method for controlling the swing motor in the hydraulic system and the hydraulic system according to the exemplary embodiment of the present disclosure may ensure the sufficient amount of hydraulic oil in a make-up line in a situation in which the hydraulic oil needs to be supplementarily supplied to the swing motor in the hydraulic system. Therefore, it is possible to prevent the occurrence of cavitation in the swing motor by stably supplying the amount of hydraulic oil at the point in time where the hydraulic oil needs to be supplementarily supplied to the swing motor. In addition, it is possible to prevent the occurrence of abnormal noise which is harsh to the ear when the cavitation occurs.