专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

EP1286057B1 HYDRAULIC CIRCUIT OF CONSTRUCTION MACHINERY 有权
标题翻译：液压回路建设
公开(公告)号：EP1286057B1
公开(公告)日：2010-10-06
申请号：EP02700600.6
申请日：2002-02-18
申请人： Hitachi Construction Machinery Co., Ltd.
发明人： ARIGA, Nobuei , SUGIYAMA, Genroku , TANAKA, Hideaki , TOYOOKA, Tsukasa , EGASHIRA, Masaki , OOKI, Takatoshi
IPC分类号： F15B11/02 , E02F9/22
CPC分类号： F15B11/17 , E02F9/2232 , E02F9/2235 , E02F9/2292 , E02F9/2296 , F04B23/06 , F04B49/08 , F15B11/165 , F15B2211/20553 , F15B2211/20584 , F15B2211/3052 , F15B2211/30525 , F15B2211/3059 , F15B2211/3116 , F15B2211/31576 , F15B2211/6054 , F15B2211/6055 , F15B2211/6309 , F15B2211/6343 , F15B2211/6656 , F15B2211/7051 , F15B2211/7058 , F15B2211/7135 , F15B2211/781
摘要： A hydraulic circuit of construction machinery, wherein, when three hydraulic pumps are used, the displacement volumes of first and second hydraulic pumps are controlled based on the discharge pressures P1 and P2 of the first and second hydraulic pumps and a discharge pressure P3' obtained by reducing the discharge pressure P3 of a third hydraulic pump by a pressure reducing valve (14) and the displacement volume of the third hydraulic pump (3) is controlled only by the discharge pressure of the third hydraulic pump (3) so that one of the three hydraulic pumps is not affected by the variation of torque of the other hydraulic pumps, whereby a stable flow can be assured by preventing the pressure oil discharged from the third hydraulic pump (3) from being affected by the variation of the discharged flow from the first and second hydraulic pumps (1) and (2), i.e., by the variation of a torque consumption.

2. 发明授权

EP0503088B1 ROTARY SPEED CONTROL SYSTEM FOR ENGINE 有权
标题翻译：速度控制装置发动机
公开(公告)号：EP0503088B1
公开(公告)日：1996-12-11
申请号：EP91916948.2
申请日：1991-09-27
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： EGASHIRA, Masaki , HAGA, Masakazu , TOMIKAWA, Osamu, Room 102, , HIRATA, Touichi
IPC分类号： F02D1/08 , F02D41/14 , F02D35/00 , F02D31/00 , F02D41/38
CPC分类号： F02D31/007
摘要： A rotary speed control system for controlling the rotary speed of an engine (1) through remote control of the turning of a governor lever (3). This rotary speed control system comprises: a stepping motor (6) for turning the governor lever (3); lever position detecting switches (11), (12) for detecting the abutting of the governor lever (3) against stoppers (4), (5); a pulse counter (14); and a controller (13). And, the controller (13) stores a count value of the pulse counter (14), when the position detecting switches (11), (12) are turned on, as an updatable reference value and performs rotary speed control and initial adjustment of the engine (1) on the basis of the reference value.

3. 发明公开

EP0383936A1 REMOTE CONTROLLER OF ENGINE 失效
标题翻译： FERNSTEUERUNG VON摩托车。
公开(公告)号：EP0383936A1
公开(公告)日：1990-08-29
申请号：EP89909040.1
申请日：1989-08-03
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： TOMIKAWA, Osamu Room 102 Urban Hikari , HIRATA, Touichi , TATSUMI, Akira , HAGA, Masakazu , EGASHIRA, Masaki , WATANABE, Hiroshi
IPC分类号： F02D41/40 , F02D41/22
CPC分类号： F02D11/10 , F02D31/009
摘要： This invention relates to a remote controller which outputs an electrical operation signal from an operation device (10) to the driving device (6) of a governor mechanism (2) of an engine (1) to remote- control the governor mechanism (2). This remote controller includes a detection device (8) for detecting a control quantity of the governor mechanism (2) and a control device (13) to which an operation signal from the operation device (10) and a detection signal from the detection device (8) are inputted. When the difference between a control quantity at a certain time and a control quantity detected a predetermined prior to that time is below a predetermined value, this control device (13) judges this state as an operation limit of the governor mechanism (2) and outputs a stop signal to the driving device (6). In this manner, damage to the governor mechanism (2) and the driving device (6) is prevented.
摘要翻译：遥控器从操作装置（10）向发动机（1）的调速器机构（2）的驱动装置（6）输出电气操作信号，以远程控制调速器机构。该遥控器包括用于检测调速器机构的控制量的检测装置（8）和来自操作装置（10）的操作信号和来自检测装置（8）的检测信号的控制装置（13）输入。当一定时间的控制量和在该时间之前检测到的控制量之间的差异低于预定值时，该控制装置（13）将该状态判定为调速器机构（2）的操作限制。它向驱动装置（6）输出停止信号。

4. 发明公开

EP1286057A1 HYDRAULIC CIRCUIT OF CONSTRUCTION MACHINERY 有权
标题翻译： HYDRAULIKKREISLAUFFÜRBAUMASCHINEN
公开(公告)号：EP1286057A1
公开(公告)日：2003-02-26
申请号：EP02700600.6
申请日：2002-02-18
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： ARIGA, Nobuei , SUGIYAMA, Genroku , TANAKA, Hideaki , TOYOOKA, Tsukasa , EGASHIRA, Masaki , OOKI, Takatoshi
IPC分类号： F15B11/02
CPC分类号： F15B11/17 , E02F9/2232 , E02F9/2235 , E02F9/2292 , E02F9/2296 , F04B23/06 , F04B49/08 , F15B11/165 , F15B2211/20553 , F15B2211/20584 , F15B2211/3052 , F15B2211/30525 , F15B2211/3059 , F15B2211/3116 , F15B2211/31576 , F15B2211/6054 , F15B2211/6055 , F15B2211/6309 , F15B2211/6343 , F15B2211/6656 , F15B2211/7051 , F15B2211/7058 , F15B2211/7135 , F15B2211/781
摘要： To keep one of three hydraulic pumps unaffected by variations in torque of the remaining hydraulic pumps when the three hydraulic pumps are used, displacements of the first and second hydraulic pumps are controlled based on their own delivery pressures P1,P2 and a pressure P3' obtained by reducing through a reducing valve 14 a delivery pressure P3 from the third hydraulic pump, while a displacement of the third hydraulic pump 3 is controlled only by its own delivery pressure P3. The pressure oil delivered from the third hydraulic pump 3, therefore, remains unaffected by variations in delivery flow rates from the first and second hydraulic pumps 1,2, in other words, by variations in their torque consumptions, so that the third hydraulic pump is assured to provide a stable flow rate.
摘要翻译：当使用三个液压泵时，为了保持三个液压泵中的一个不受剩余液压泵的扭矩变化的影响，基于其自身的输送压力P1，P2和获得的压力P3'来控制第一和第二液压泵的位移通过减压阀14减少来自第三液压泵的输送压力P3，而第三液压泵3的排量仅由其自身的输送压力P3控制。因此，从第三液压泵3输送的压力油不受来自第一和第二液压泵1,2的输送流量的变化的影响，换句话说，它们的扭矩消耗的变化，使得第三液压泵是保证提供稳定的流量。

5. 发明公开

EP0503088A1 ROTARY SPEED CONTROL SYSTEM FOR ENGINE 有权
标题翻译： DREHZAHLREGELEINRICHTUNGFÜR摩托车。
公开(公告)号：EP0503088A1
公开(公告)日：1992-09-16
申请号：EP91916948.2
申请日：1991-09-27
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： EGASHIRA, Masaki , HAGA, Masakazu , TOMIKAWA, Osamu, Room 102, , HIRATA, Touichi
IPC分类号： F02D1/08 , F02D41/14 , F02D35/00 , F02D31/00 , F02D41/38
CPC分类号： F02D31/007
摘要： A rotary speed control system for controlling the rotary speed of an engine (1) through remote control of the turning of a governor lever (3). This rotary speed control system comprises: a stepping motor (6) for turning the governor lever (3); lever position detecting switches (11), (12) for detecting the abutting of the governor lever (3) against stoppers (4),(5); a pulse counter (14); and a controller (13). And, the controller (13) stores a count value of the pulse counter (14), when the position detecting switches (11), (12) are turned on, as an updatable reference value and performs rotary speed control and initial adjustment of the engine (1) on the basis of the reference value.
摘要翻译：一种用于通过遥控调速器杆（3）的转动来控制发动机（1）的转速的转速控制系统。该转速控制系统包括：用于转动调速杆（3）的步进电机（6）; （12），用于检测调速器杆（3）与止动件（4）的抵接;（5）; 脉冲计数器（14）; 和控制器（13）。并且，当位置检测开关（11），（12）接通时，控制器（13）存储脉冲计数器（14）的计数值作为可更新基准值，并进行旋转速度控制和初始调整发动机（1）基于参考值。

6. 发明授权

EP0383936B1 REMOTE CONTROLLER OF ENGINE 失效
标题翻译：发动机遥控器
公开(公告)号：EP0383936B1
公开(公告)日：1992-02-26
申请号：EP89909040.1
申请日：1989-08-03
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
发明人： TOMIKAWA, Osamu Room 102 Urban Hikari , HIRATA, Touichi , TATSUMI, Akira , HAGA, Masakazu , EGASHIRA, Masaki , WATANABE, Hiroshi
IPC分类号： F02D41/40 , F02D41/22
CPC分类号： F02D11/10 , F02D31/009
摘要： This invention relates to a remote controller which outputs an electrical operation signal from an operation device (10) to the driving device (6) of a governor mechanism (2) of an engine (1) to remote-control the governor mechanism (2). This remote controller includes a detection device (8) for detecting a control quantity of the governor mechanism (2) and a control device (13) to which an operation signal from the operation device (10) and a detection signal from the detection device (8) are inputted. When the difference between a control quantity at a certain time and a control quantity detected a predetermined prior to that time is below a predetermined value, this control device (13) judges this state as an operation limit of the governor mechanism (2) and outputs a stop signal to the driving device (6). In this manner, damage to the governor mechanism (2) and the driving device (6) is prevented.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式