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1. 发明申请

WO1986006486A1 METHOD OF MEASURING ANGLE OF INCLINATION OF PLANAR FLAW IN SOLID OBJECT WITH ULTRASONIC WAVE 审中-公开
标题翻译：用超声波测量固体物体中平面FLAW的角度的方法
公开(公告)号：WO1986006486A1
公开(公告)日：1986-11-06
申请号：PCT/JP1985000225
申请日：1985-04-22
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , MIYAJIMA, Takeshi , OSHIRO, Takayuki
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G01N29/04
CPC分类号： G01N29/4427 , G01N29/0645 , G01N29/11 , G01N29/265 , G01N2291/044 , G01N2291/2632
摘要： Method of measuring an angle of inclination of a planar flaw mainly crops out of the surface of a solid object, by utilizing an ultrasonic wave. An angle of inclination of a planar flaw is measured by using as evaluation indexes, the inclination of the envelope of echoes which is obtained from each beam path of an ultrasonic wave applied to the planar flaw in the solid object while scanning with a probe in the longitudinal direction, and the echo height of the wave reflected from the planar flaw and received in accordance with the beam paths. Consequently, the angle of inclination of the planar flaw, which occurs in a part or a member of an electric or mechanical apparatus can be measured non-destructively, accurately, easily, in a short period of time and during real time by using a single probe.

2. 发明申请

WO1986007452A1 METHOD OF MEASURING CONTACT STRESS IN CONTACT SURFACE BETWEEN SOLIDS BY ULTRASONIC WAVE 审中-公开
标题翻译：通过超声波测量固体接触表面的接触应力的方法
公开(公告)号：WO1986007452A1
公开(公告)日：1986-12-18
申请号：PCT/JP1985000336
申请日：1985-06-14
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , MIYAJIMA, Takeshi , OGURA, Yukio , SUZUKI, Yoshiaki , TOMITA, Sadahisa
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G01L01/00
CPC分类号： G01N29/227 , G01L1/255 , G01N29/041 , G01N29/0645 , G01N2291/015 , G01N2291/02827 , G01N2291/02872 , G01N2291/0421 , G01N2291/0422 , G01N2291/102 , G01N2291/2632
摘要： A method of measuring the contact stress in a contact surface (1) between solids of the same or different kinds by utilizing an ultrasonic wave, consisting of the steps of applying a surface wave to the contact surface (1) from the side of one end thereof so as to introduce the surface wave to the side of the other end of the contact surface (1) therethrough, and determining the contact stress on the basis of the sound pressure of this passed wave as an evaluation index, whereby the contact stress in the contact surface between the parts or members of a machine, which are in the static and dynamic state, can be measured non-destructively, easily, quantitatively, and very accurately by a real-time operation without being influenced by the shape, sizes and roughness of a surface to be flaw-detected, contact surface and bottom surface.

3. 发明申请

WO1989001138A1 METHOD OF MEASURING CONTACT STRESS WITH ULTRASONIC WAVE 审中-公开
标题翻译：用超声波测量接触应力的方法
公开(公告)号：WO1989001138A1
公开(公告)日：1989-02-09
申请号：PCT/JP1987000564
申请日：1987-07-30
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , MIYAJIMA, Takeshi
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G01L01/00
CPC分类号： G01L1/255
摘要： This invention relates to a method of measuring contact stress on a contact surface of a thin sheet (mainly up 2 to 3 mm thick) in contact with other solid by utilizing a sheet wave available in one of the ultra-sonic modes. A probe is brought into contact with the thin sheet, an ultrasonic wave is projected to the thin sheet from the probe to generate the sheet wave, the resulting sheet wave is propagated through the thin sheet and passed through the contact surface and the contact stress is measured by use of the sound pressure of the passing sheet wave as an index of evaluation. It becomes thus possible to measure the contact stress between the thin sheet and other solid, which has been measured conventionally only by dipping the thin sheet into a liquid tank, without using the liquid tank, both statically and dynamically, quantitatively, rapidly and moreover on a real time basis.
摘要翻译：本发明涉及一种通过利用超声波模式之一提供的薄片波，来测量与其它固体接触的薄片（主要是2至3mm厚）的接触表面上的接触应力的方法。探针与薄片接触，超声波从探针投射到薄片上以产生薄片波，所得薄片波通过薄片传播通过接触表面，接触应力为通过使用通过的纸张波的声压作为评价指标来测量。因此，可以测量薄片和其它固体之间的接触应力，其通常仅通过将薄片浸入液体罐中而不使用液体仓即时静态和动态地定量地快速地进行测量，而且在一个实时的基础。

4. 发明申请

WO1988009931A1 METHOD OF MEASURING DEPTH OF SURFACE OPENING DEFECTS OF A SOLID MATERIAL BY USING ULTRASONIC WAVES 审中-公开
标题翻译：使用超声波测量固体材料表面缺陷的方法
公开(公告)号：WO1988009931A1
公开(公告)日：1988-12-15
申请号：PCT/JP1987000358
申请日：1987-06-08
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , MIYAJIMA, Takeshi
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G01N29/04
CPC分类号： G01N29/11 , G01N29/0618 , G01N29/07 , G01N29/2487 , G01N29/30 , G01N29/40 , G01N29/4445 , G01N2291/02854 , G01N2291/0421 , G01N2291/0422 , G01N2291/044 , G01N2291/056 , G01N2291/101
摘要： This invention is related to a method of measuring the depth of surface opening defects of a solid material by utilizing chiefly ultrasonic waves. Ultrasonic waves are permitted to fall on the surface opening defects while being scanned with a probe back and forth and a threshold value of a predetermined level is set onto an echo envelope that is formed by the echoes of ultrasonic waves reflected depending upon the moving positions of the probe from the surface opening defects. The region that exceeds the threshold value is integrated for a range in which the probe has moved in said region, and the depth of the surface opening defects is measured with the area value of the region calculated by integration as an evaluation index. This makes it possible to measure the depth of cracks in the welded portion or the depth of surface opening defects such as cracks of the member caused by fatigue in a portion where the stress concentrates, non-destructively, easily, highly precisely and in real time.

5. 发明申请

WO1986004414A1 METHOD OF MEASURING STRESS CONCENTRATION COEFFICIENT WITH ULTRASONIC WAVE 审中-公开
标题翻译：用超声波测量应力集中系数的方法
公开(公告)号：WO1986004414A1
公开(公告)日：1986-07-31
申请号：PCT/JP1985000013
申请日：1985-01-16
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , MIYAJIMA, Takeshi
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G01N29/00
CPC分类号： G01N29/11 , G01N29/227 , G01N2291/02872
摘要： A method for measuring a stress concentration coefficient in a stress concentrated portion of a member by utilizing an ultrasonic wave, which method comprises the steps of introducing the ultrasonic wave to the stress concentrated portion of the member having the stress concentrated portion in a load state, increasing or decreasing the sound pressure of a reflected wave of the ultrasonic wave from the concentrated portion and the stress in the load state, comparing the sound pressure of the reflected wave from the concentrated portion in the increased or decreased stress state, and measuring the stress concentration coefficient with the rate of change of the sound pressure of the reflected wave as an evaluation index, thereby measuring the coefficient in the concentrated portion of the member for forming a machine in static and dynamic states non-destructively, readily, quantitatively and accurately in real time.

6. 发明申请

WO1983003470A1 METHOD OF MEASURING CONTACT STRESS OF CONTACTING SOLID SURFACES WITH ULTRASONIC WAVES 审中-公开
标题翻译：用超声波测量接触固体表面的接触应力的方法
公开(公告)号：WO1983003470A1
公开(公告)日：1983-10-13
申请号：PCT/JP1982000087
申请日：1982-03-30
申请人： HITACHI CONSTRUCTION MACHINERY CO., LTD. , OGURA, Yukio , MIYAJIMA, Takeshi
发明人： HITACHI CONSTRUCTION MACHINERY CO., LTD.
IPC分类号： G01L05/00
CPC分类号： G01N29/043 , G01L1/255 , G01N2291/02827 , G01N2291/02872 , G01N2291/0421
摘要： Un procédé de mesure de la tension de contact à la surface adjacente (4) de solides de type similaire ou différent en utilisant des ondes ultrasoniques consiste à transmettre les ondes ultrasoniques aux surfaces adjacentes (4), à comparer la pression ultrasonique des ondes réfléchies par la surface adjacente (4) avec la pression des ondes qui se propagent à travers la surface adjacente (4), et à mesurer la tension de contact en utilisant la valeur comparée comme indice d'estimation. Ce procédé permet de mesurer de façon simple, non-destructive, quantitative et précise la tension de contact entre les surfaces adjacentes de parties ou d'organes composant une machine ou autres à l'arrêt et en fonctionnement.

7. 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。

8. 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。

9. 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。

10. 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。

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