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1. 发明申请

WO1998016727A1 ENGINE COOLING APPARATUS 审中-公开
标题翻译：发动机冷却装置
公开(公告)号：WO1998016727A1
公开(公告)日：1998-04-23
申请号：PCT/JP1997003598
申请日：1997-10-08
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , KAWASAKI, Koji , FUNABASHI, Shigehisa , KANEKO, Zenji , KANAHARA, Masaki , TAHARA, Koji
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： F01P05/02
CPC分类号： F02B77/13 , F01P5/02 , F01P11/10 , F01P11/12 , F01P2001/005 , F01P2003/187 , F01P2050/08 , F01P2060/02 , F01P2060/04 , F02B29/0431 , F02B29/0475 , F02B63/06 , Y02T10/146
摘要： An engine cooling apparatus which comprises an intercooler (3) for precooling a combustion air for an engine (1), an oil cooler (4) for cooling a working oil for a hydraulic excavator, a radiator (5) for cooling a cooling water for the engine (1), a cooling fan (17) which is a centrifugal fan, and a suction pipe (19) for directing a cooling air toward a suction side of the cooling fan (17). A bore (D1) at a downstream end (19A) of the suction pipe is smaller than a bore (D2) at a suction side end (18A) of a rotating shroud so that the downstream end (19A) of the suction pipe is disposed to enter inside the suction side end (18A) of the rotating shroud. Accordingly, noises are further reduced and an engine room (2) is made compact.
摘要翻译：一种发动机冷却装置，包括用于对用于发动机（1）的燃烧空气进行预冷却的中间冷却器（3），用于冷却用于液压挖掘机的工作油的油冷却器（4），用于冷却用于发动机（1），作为离心风扇的冷却风扇（17）和用于将冷却空气朝向冷却风扇（17）的吸入侧引导的吸入管（19）。吸入管的下游端（19A）处的孔（D1）小于旋转护罩的吸入侧端部（18A）处的孔（D2），使得吸管的下游端（19A）进入旋转罩的吸入侧端部18A内。因此，噪声进一步减小，发动机室（2）变得紧凑。

2. 发明申请

WO1998006946A1 APPARATUS FOR DIAGNOSING FAILURE OF HYDRAULIC PUMP FOR WORK MACHINE 审中-公开
标题翻译：用于诊断工作机械液压泵故障的装置
公开(公告)号：WO1998006946A1
公开(公告)日：1998-02-19
申请号：PCT/JP1997002771
申请日：1997-08-07
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , TANAKA, Yasuo , OCHIAI, Masami , YAGYU, Takashi , HASHIMOTO, Akira , FURUNO, Yoshinori , WATANABE, Yutaka , SUGIYAMA, Yukihiko
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： F04B51/00
CPC分类号： F15B20/004 , E02F9/2235 , E02F9/226 , E02F9/2282 , E02F9/2292 , E02F9/2296 , E02F9/26 , F04B49/065 , F04B51/00 , F04B2205/063
摘要： An apparatus for diagnosing failure of hydraulic pumps for a work machine, which apparatus is inexpensive and capable of surely specifying a faulty hydraulic pump or pumps. Pressure sensors (61-64) are provided on lines (30, 40) leading to a tank (T) from locations leaving center bypasses of flow control valves (21, 231-234, 451-454, 26) connected to hydraulic pumps (1-6), and respective solenoid directional control valves (51-56) are provided on input circuits of respective regulators (11-16) to permit, when excited, pressure from a pilot pump (7) to be introduced into the regulators (11-16). When a switch (80) commands judgement with all the flow control valves in neutral positions, a signal from a processing device (70) energizes one of the solenoid directional control valves to cause a corresponding hydraulic pump to discharge a fluid at a maximum flow rate. A detected value from an associated pressure sensor at this time is converted into a flow rate and stored, and this sequence is carried out with respect to the respective hydraulic pumps. On the basis of flow rates obtained from every judgement, failure of a specified hydraulic pump or pumps is diagnosed.
摘要翻译：一种用于诊断作业机械的液压泵的故障的装置，该装置便宜并能够确定地指定故障的液压泵或泵。压力传感器（61-64）设置在从连接到液压泵的流量控制阀（21,231-234,451-454,26）的中心旁路的位置通向罐（T）的管线（30,40） 1-6），并且各个电磁换向控制阀（51-56）设置在相应的调节器（11-16）的输入电路上，以允许当被激励时来自先导泵（7）的压力被引入调节器 11-16）。当开关（80）命令所有流量控制阀在中立位置的判断时，来自处理装置（70）的信号使电磁方向控制阀之一通电，使相应的液压泵以最大流量排出流体。此时，来自相关压力传感器的检测值被转换为流量并存储，并且该顺序相对于相应的液压泵执行。根据从每个判断获得的流量，诊断指定的液压泵或泵的故障。

3. 发明申请

WO1997014874A1 ENGINE COOLER AND CONSTRUCTION MACHINES 审中-公开
标题翻译：发动机冷却器和建筑机械
公开(公告)号：WO1997014874A1
公开(公告)日：1997-04-24
申请号：PCT/JP1996003025
申请日：1996-10-18
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , FUNABASHI, Shigehisa , TAKADA, Yoshihiro , WATANABE, Masatoshi , SHIMODE, Shinichi , TANITO, Yoshio , TANAKA, Sotaro , KANEKO, Zenji , HIRAMI, Ichiro , TAKISHITA, Toshio , MIHARA, Shinichi
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： F01P05/02
CPC分类号： E02F9/0866 , B60K11/04 , B60K11/08 , F01P5/02 , F01P11/10 , F01P2001/005 , F04D17/162 , F04D29/582 , F04D29/664
摘要： First cooling air (50) enters an engine room (1) from outside through a cooling air inlet (7a), passes through a heat exchanger such as an inter-cooler (6a)/oil cooler (6b)/radiator (6c), is throttled by a suction pipe (8a) and enters a centrifugal fan (4). It is then discharged in an outer peripheral direction of the centrifugal fan (4). Second cooling air enters the engine room (1) from outside the engine room (1) through cooling air inlets (7b, 7b), and cools the engine (5), various electrical components such as an alternator (10) and an oil pan (14) while flowing around them. It is then throttled by a suction pipe (8b), enters the centrifugal fan (4) and is discharged in the outer peripheral direction of the centrifugal fan (4). These two kinds of cooling air (50, 51) are discharged to the outside from an exhaust port (9). Therefore, the degree of sealing of the engine (5) can be improved, the noise can be reduced and reliability of the electrical components (10) can be improved by improving the cooling effect for them.
摘要翻译：第一冷却空气（50）从外部通过冷却空气入口（7a）进入发动机室（1），通过诸如中间冷却器（6a）/油冷却器（6b）/散热器（6c）的热交换器，被抽吸管（8a）节流并进入离心式风扇（4）。然后在离心风扇（4）的外周方向排出。第二冷却空气通过冷却空气入口（7b，7b）从发动机室（1）的外部进入发动机室（1），并且冷却发动机（5），各种电气部件，例如交流发电机（10）和油盘（14）。然后通过吸入管（8b）进行节流，进入离心式风扇（4），并在离心式风扇（4）的外周方向排出。这两种冷却空气（50,51）从排气口（9）排出到外部。因此，通过改善发动机（5）的冷却效果，能够提高发动机（5）的密封度，可以降低噪声，提高电气部件（10）的可靠性。

4. 发明申请

WO1997007297A1 REGION LIMITED EXCAVATION CONTROL APPARATUS FOR CONSTRUCTION MACHINES 审中-公开
标题翻译：区域有限公司施工机械挖掘控制装置
公开(公告)号：WO1997007297A1
公开(公告)日：1997-02-27
申请号：PCT/JP1996002252
申请日：1996-08-08
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , NAKAGAWA, Takashi , WATANABE, Hiroshi , HAGA, Masakazu , FUJISHIMA, Kazuo , EGAWA, Eiji
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： E02F03/43
CPC分类号： E02F3/437
摘要： A region in which a front unit (1A) can be moved is set in advance. When a mode switch (20) is on with the front unit within and in the vicinity of a boundary of the set region, a target speed vector for the front unit is corrected so as to reduce therefrom the components thereof in the direction approaching the boundary of the set region on the basis of a signal from which an operating signal for operating levers (4a-4c) is reduced, and, when the mode switch (20) is off, such correction is made by using the operating signal as it is. When the front unit is out of the set region, the target speed vector is corrected so that the front unit returns to the set region. This enables the region limited excavation to be carried out efficiently and smoothly, and an operator to choose of his will between an accuracy priority working mode and a speed priority working mode.
摘要翻译：可以预先设定可以移动前置单元（1A）的区域。当模式开关（20）在设置区域的边界内和附近开启模式开关（20）时，校正用于前端单元的目标速度矢量，从而使其在接近边界的方向上从其中减少其分量基于操作杆（4a-4c）的操作信号被减小的信号，并且当模式开关（20）关闭时，通过使用操作信号来进行这样的校正。当前置单元超出设定区域时，对目标速度矢量进行校正，使前置单元返回到设定区域。这使得区域有限的挖掘能够有效和平稳地进行，并且操作者在精度优先工作模式和速度优先工作模式之间选择他的意志。

5. 发明申请

WO1996032575A1 COOLING DEVICE FOR A HEAT EXCHANGER 审中-公开
标题翻译：冷热交换器冷却装置
公开(公告)号：WO1996032575A1
公开(公告)日：1996-10-17
申请号：PCT/JP1996000968
申请日：1996-04-09
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , SAKAMOTO, Yuichi , HIRAMI, Ichiro , KATO, Yoshihiro , KOMATSUBARA, Tamio
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： F01P11/10
CPC分类号： F01P5/06 , F01P11/10 , F04D19/002 , F04D29/526 , F04D29/545 , F04D29/582
摘要： A cooling device for a heat exchanger that can be used in a heat exchanger for an engine for use in a hydraulic shovel. The cooling device comprises a fan that is driven by an engine and a shroud for accommodating the fan. The fan is of an axial flow type and the shroud has a bellmouth shaped fan surrounding portion. With respect to the shape of the fan surrounding portion, a value for a covering ratio (L4/L3) that is defined based on the relative positional relationship between the fan surrounding portion and a blade width is set so as to fall within a range of 41 to 70 percent. By using an axial flow type fan, it is possible to reduce the axial horse power of the fan, and by setting the covering ratio, it is possible not only to reduce the fan noise but also to improve the volume of cooling air.
摘要翻译：一种用于热交换器的冷却装置，其可用于用于液压挖掘机的发动机的热交换器中。冷却装置包括由发动机驱动的风扇和用于容纳风扇的护罩。风扇是轴流式的，护罩具有喇叭形风扇环绕部分。关于风扇周围部的形状，基于风扇周围部与叶片宽度之间的相对位置关系而定义的覆盖率（L4 / L3）的值被设定为落在 41％至70％。通过使用轴流式风扇，可以降低风扇的轴向马力，并且通过设定覆盖率，不仅可以降低风扇噪音，而且可以提高冷却空气的体积。

6. 发明申请

WO1995030059A1 AERA LIMITING DIGGING CONTROL DEVICE FOR A BUILDING MACHINE 审中-公开
标题翻译：用于建筑机械的AERA限制吊装控制装置
公开(公告)号：WO1995030059A1
公开(公告)日：1995-11-09
申请号：PCT/JP1995000843
申请日：1995-04-27
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , HIRATA, Toichi , YAMAGATA, Eiji , WATANABE, Hiroshi , HAGA, Masakazu , FUJISHIMA, Kazuo , ADACHI, Hiroyuki
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： E02F03/43
CPC分类号： E02F9/2033 , E02F3/301 , E02F3/435
摘要： An area limiting digging control device for a hydraulic shovel characterized in that an area where a front device (1A) can travel is set in advance, that the position and attitude of the front device are calculated by a control unit (9) based on signals from angle detectors (8a-8c), that a target speed vector (Vc) for the front device is calculated based on signals from operation lever devices (4a, 4b), that the target speed vector so calculated is maintained when the front device is not present in the vicinity of a boundary within the set area, while the target speed vector is corrected so as to reduce a vector component (Vcy) in a direction in which the front device approaches the boundary of the set area when the front device is present in the vicinity of the boundary within the set area, and that the target speed vector is corrected such that the front device can return to within the set area when it is out of the set area, whereby an area-limited digging operation can be carried out in an efficient fashion.
摘要翻译：一种用于液压挖掘机的区域限制挖掘控制装置，其特征在于，预先设置前置装置（1A）可行进的区域，通过控制单元（9）基于信号计算前置装置的位置和姿态从角度检测器（8a-8c），基于来自操作杆装置（4a，4b）的信号计算出用于前置装置的目标速度矢量（Vc），当前部装置为不存在于设定区域内的边界附近，同时校正目标速度矢量，以便当前置装置是前置装置是前置装置接近设定区域的边界时的方向上减小矢量分量（Vcy）存在于设定区域内的边界附近，并且校正目标速度矢量，使得当设备区域超出设定区域时，前端设备可以返回到设定区域内，从而可以进行区域限制的挖掘操作携带o 以高效的方式。

7. 发明申请

WO1994013015A1 LEAD FRAME MANUFACTURING METHOD 审中-公开
标题翻译：引导框架制造方法
公开(公告)号：WO1994013015A1
公开(公告)日：1994-06-09
申请号：PCT/JP1993001707
申请日：1993-11-22
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , TADA, Nobuhiko , MIYANAGI, Naoki , SHIMOMURA, Yoshiaki , SAKURAI, Shigeyuki , OKUMURA, Shinya , NAGANO, Yoshinari
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： H01L23/50
CPC分类号： H01L21/4828 , B23K26/361 , H01L21/4821 , H01L23/49541 , H01L24/48 , H01L24/73 , H01L2224/32245 , H01L2224/48091 , H01L2224/48247 , H01L2224/73265 , H01L2924/00014 , H01L2924/01039 , H01L2924/01078 , H01L2924/01079 , H01L2924/12042 , H01L2924/1532 , H01L2924/181 , Y10T29/49121 , Y10T29/515 , H01L2924/00012 , H01L2224/45099 , H01L2224/05599 , H01L2924/00
摘要： A method of manufacturing a lead frame (1) from a metal plate, wherein outer leads (4) of the lead frame (1) and outer portions (3b) of inner leads (3) are formed by etching metal plate (11). The inner portions (3a) of the inner leads are then laser beam machined with the connecting portions (7) left as they are so that the front end portions of the inner leads (3) are joined. A mechanical surface treatment and a chemical surface treatment are then conducted, and dross (10), spatters (9) and oxide film which are deposited or formed during the laser beam machining operation are thereby removed. The portions which are on the inner side of the inner leads (3), and which are connected to the terminals of a semiconductor device, are then plated with gold to form plated terminal portions (3A). The region excluding the region of the outer leads (4) is coated with a solder plating protecting film, and the outer leads (4) are solder plated. The connecting portions (7) left at the front ends of the inner leads (3) are then cut off by laser beam machining, and the inner leads (3) are thus separated from one another to form a final lead frame pattern. The solder plating protecting film is then removed, and the lead frame is washed and dried. This enables the occurrence of bend, which is ascribed to the thermal deformation of the lead frame during the laser beam machining operation, of the inner leads (3) within the plate surfaces to be prevented, and the manufacturing of lead frames to be done with a high precision. The invention can solve various problems with the laser beam machining.
摘要翻译：通过蚀刻金属板（11）形成从金属板制造引线框架（1）的方法，其中引线框架（1）的外引线（4）和内引线（3）的外部部分（3b）形成。然后，内引线的内部（3a）被激光加工，其中连接部分（7）保持原样，使得内引线（3）的前端部接合。然后进行机械表面处理和化学表面处理，由此去除在激光加工操作期间沉积或形成的浮渣（10），飞溅物（9）和氧化膜。然后，在内部引线（3）的内侧的与半导体器件的端子连接的部分用金镀以形成电镀端子部（3A）。除了外引线（4）的区域之外的区域涂覆有焊料保护膜，并且外引线（4）被焊接镀覆。然后通过激光束加工将留在内引线（3）前端的连接部分（7）切断，内引线（3）彼此分开形成最终引线框架图案。然后除去焊料保护膜，并将引线框架洗涤并干燥。这样可以防止在板表面内的引线框架在激光束加工操作期间的热变形引起的弯曲发生，并且制造用于精度高。本发明可以解决激光束加工的各种问题。

8. 发明申请

WO1993025829A1 CONSTRUCTION OF SEALING THROUGH-HOLE PENETRATING THROUGH METALLIC PARTITIONING MEMBER 审中-公开
标题翻译：通过金属分隔构件密封穿孔的构造
公开(公告)号：WO1993025829A1
公开(公告)日：1993-12-23
申请号：PCT/JP1993000746
申请日：1993-06-03
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , HITACHI, LTD. , TAMURA, Morio , ICHIRYU, Ken , TANAKA, Kiyoshi , HARADA, Kouji , KANAMARU, Hisanobu , TOBITA, Nobuyuki
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , HITACHI, LTD.
IPC分类号： F16J15/06
CPC分类号： G02B6/4428 , F16L5/10 , H01B17/308 , H02G3/22
摘要： In a construction wherein a hole (5) is formed in a base member (4) made of metal as being a partition member for gas-tightly or liquid-tightly partitioning regions disposed on opposite sides, and an electric conductor (1), a pipe member, through which gas or liquid is caused to flow, a heat pipe, through which a heat transfer medium is caused to flow, an optical fiber for transmitting optical signals, and the like are passed through the hole (5) to be led out therefrom, each of said members is disposed through a sealing member (3) made of synthetic resin, said hole (5) is sealed by sealing by plasticity deformation action of the base member (4) and the deformation action through the utilization of elastic plasticity of the sealing member (3), whereby high pressure-tight performance is achieved against superhigh pressure, so that said hole (5) can be sealed stably for a long period of time.
摘要翻译：在其中在由金属制成的基底构件（4）中形成孔（5）作为用于气密或液密地划分在相对侧的分隔区域的分隔构件的构造中，以及导电体（1），通过其流动气体或液体的管构件，使热传导介质流过的热管，用于传输光信号的光纤等穿过孔（5）以被引导每个所述构件通过由合成树脂制成的密封构件（3）设置，所述孔（5）通过基底构件（4）的塑性变形作用的密封和通过使用弹性的变形作用而被密封密封构件（3）的可塑性，从而对超高压实现高压紧性能，使得所述孔（5）可以长时间稳定地密封。

9. 发明申请

WO1992021076A1 SYSTEM FOR CONTROLLING INDUSTRIAL ROBOT 审中-公开
标题翻译：控制工业机器人系统
公开(公告)号：WO1992021076A1
公开(公告)日：1992-11-26
申请号：PCT/JP1992000616
申请日：1992-05-14
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , SARUGAKU, Shinichi , KURENUMA, Toru , ANDOH, Takeshi , OTOMO, Masami , KAWASAKI, Kyoichi
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G05B19/42
CPC分类号： G05B19/425 , B25J9/1674 , G05B2219/36399 , G05B2219/36473 , G05B2219/42123
摘要： A system for controlling an industrial robot, which is simplified in operation and capable of direct-teaching safely all the time. The system is provided with means (131 and 132) for monitoring a magnitude of an external force applied to the forward end of a hand during direct teaching, so that the motion of the robot can be forcibly restricted when the external force reaches a predetermined value of thereabove. Furthermore, when the system is operated to be set in a direct teach mode, a process (136) of correcting the offset of a force sensor is performed automatically. By monitoring a force detected by the force sensor, the discrimination is made as to whether an external force to operate the robot at an abnormal speed is applied to the robot or not, and, when the external force becomes higher than a reference value, a mode of prohibiting the operation of the robot by the external force (position control mode) is set, or current supplied to a servo motor is cut off to prevent the robot from going into the erroneous operation due to an erroneous control.

10. 发明申请

WO1992006306A1 CONTROL SYSTEM OF HYDRAULIC PUMP 审中-公开
标题翻译：液压泵控制系统
公开(公告)号：WO1992006306A1
公开(公告)日：1992-04-16
申请号：PCT/JP1991001296
申请日：1991-09-27
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , WATANABE, Hiroshi , TANAKA, Yasuo , IZUMI, Eiki , ONOUE, Hiroshi , NAKAMURA, Shigetaka
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： F15B11/00
CPC分类号： F15B21/087 , E02F9/2228 , E02F9/2235 , E02F9/2296 , F04B49/065 , F04B2201/12041 , F04B2205/05 , F04B2205/10 , F04B2207/01 , F04B2207/042 , F04B2207/044 , F15B11/05 , F15B11/165 , F15B2211/20546 , F15B2211/20553 , F15B2211/20592 , F15B2211/26 , F15B2211/30535 , F15B2211/324 , F15B2211/351 , F15B2211/6054 , F15B2211/6309 , F15B2211/6313 , F15B2211/633 , F15B2211/6333 , F15B2211/6346 , F15B2211/6355 , F15B2211/6652 , F15B2211/71
摘要： A control system of a hydraulic pump (1) in a load sensing control hydraulic drive circuit, comprising: a first means (202) in which a target pressure difference between the discharge pressure of the hydraulic pump and the load pressure of an actuator (2) is set as a variable value; second means (203, 210-213) for determining a controlling coefficient which increases with an increase in deviation of this target pressure difference as a variable value from an actual pressure difference, decreases with a decrease thereof and increases for a relatively small deviation of the pressure difference when the target pressure difference is small; and third means (205, 206) for determining the target displacement volume from the deviation of the pressure difference and the controlling coefficient; whereby, irrespective of a value of the target pressure difference, stabilized control of the hydraulic pump can be performed, without causing hunting when the operating speed of a control lever (3a) is low, and, when the operating speed of the control lever is high, the control of the hydraulic pump with prompt and quick responses can be performed.

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