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71. 发明授权

US5005358A Hydraulic drive system for crawler-mounted construction vehicle 失效
标题翻译：用于履带式施工车辆的液压驱动系统
公开(公告)号：US5005358A
公开(公告)日：1991-04-09
申请号：US349851
申请日：1989-05-10
申请人： Toichi Hirata , Hideaki Tanaka , Genroku Sugiyama , Yusuke Kajita
发明人： Toichi Hirata , Hideaki Tanaka , Genroku Sugiyama , Yusuke Kajita
IPC分类号： B62D11/04 , B62D11/18 , E02F9/22 , F15B11/16 , F15B13/04 , F16H61/456
CPC分类号： E02F9/225 , B62D11/18 , E02F9/2296 , F15B11/165 , F15B13/0417 , F15B2211/20553 , F15B2211/253 , F15B2211/30515 , F15B2211/30535 , F15B2211/3111 , F15B2211/329 , F15B2211/351 , F15B2211/40515 , F15B2211/40569 , F15B2211/41581 , F15B2211/4159 , F15B2211/428 , F15B2211/45 , F15B2211/46 , F15B2211/5059 , F15B2211/6052 , F15B2211/6054 , F15B2211/6058 , F15B2211/6355 , F15B2211/7058 , F15B2211/71
摘要： A hydraulic drive system for a crawler-mounted construction vehicle includes: a hydraulic pump (1); a plurality of hydraulic actuators including traveling hydraulic motors (2, 3) driven by the hydraulic pump; a plurality of flow control valve means including first and second flow control valve means (15, 16; 35, 36) for respectively controlling the flow rates of the hydraulic fluid supplied from the pump to motors; pump controlling means (11) for effecting control during the driving of the motors in such a manner that the discharge pressure of the pump becomes higher by a fixed value than the higher one of load pressures of the motors; and first and second pressure balance valve means (17, 18; 37, 38) for respectively controlling the rates of flow through the flow control valve means during the driving of the motors in such a manner that the load pressures of the motors do not affect the rates of flow through the first and second flow control valve means. The first and second pressure balance valve means (17, 18; 37, 38) are respectively provided with valve control means (62, 63; 66, 67 ) which do not cause the associated pressure balance valve means to be actuated until the differential pressure between the load pressure generated in a first motor (2) and the load pressure generated in a second motor (3) reaches a predetermined value (.DELTA.P.sub.0), and causes the pressure balance valve means to be actuated when the differential pressure exceeds the predetermined value.

72. 发明授权

US4858649A Valve apparatus 失效
标题翻译：阀门装置
公开(公告)号：US4858649A
公开(公告)日：1989-08-22
申请号：US221509
申请日：1988-04-29
申请人： Shinichi Satoh , Toichi Hirata , Genroku Sugiyama , Hideaki Tanaka
发明人： Shinichi Satoh , Toichi Hirata , Genroku Sugiyama , Hideaki Tanaka
IPC分类号： F15B13/042
CPC分类号： F15B13/0422 , Y10T137/86582 , Y10T137/86606
摘要： A valve apparatus (1; 50; 60, 61; 90; 100) in which at least one flow control valve (21, 22; 63, 76; 101) is incorporated in a body block (20; 62, 82), and the flow control valve is connected in pilot lines (6-9) which connect a pilot valve (2) supplied with a pilot hydraulic fluid of a predetermined pressure set by a relief valve (19) and a pilot operated directional control valve (3) actuated in response to operation of the pilot valve, to permit free flow of the hydraulic fluid from the pilot valve to the directional control valve, but to restrict flow of the hydraulic fluid from the directional control valve to the pilot valve. The body block (20; 62, 82) is formed therein with a first passage (31; 52; 68, 81) connected to a return line (14; 71, 72, 86) for the relief valve (19).

73. 发明授权

US4753158A Pilot hydraulic system for operating directional control valve 失效
标题翻译：用于操作方向控制阀的先导液压系统
公开(公告)号：US4753158A
公开(公告)日：1988-06-28
申请号：US904119
申请日：1986-09-05
申请人： Toichi Hirata , Genroku Sugiyama , Shinichi Satoh
发明人： Toichi Hirata , Genroku Sugiyama , Shinichi Satoh
IPC分类号： E02F9/22 , F15B13/042 , F15B9/08
CPC分类号： E02F9/2285 , F15B13/0422
摘要： A pilot hydraulic system comprises a directional control valve having at least one pilot chamber for controlling the operation of a hydraulic actuator; and a pilot valve connected through a pilot line to the pilot chamber of the directional control valve for operation thereof. The pilot line includes a flow control valve which allows a free flow of hydraulic fluid from the pilot valve to the directional control valve while limiting a flow of hydraulic fluid from the directional control valve to the pilot valve.
摘要翻译：一个先导液压系统包括方向控制阀，该方向控制阀具有用于控制液压致动器操作的至少一个先导室; 以及通过先导管路连接到方向控制阀的先导室的先导阀，用于操作。先导管路包括流量控制阀，其允许液压流体从先导阀自由流动到方向控制阀，同时限制液压流体从方向控制阀到先导阀的流动。

74. 发明授权

US4697418A Control system for hydraulically-operated construction machinery 失效
标题翻译：液压施工机械控制系统
公开(公告)号：US4697418A
公开(公告)日：1987-10-06
申请号：US904118
申请日：1986-09-05
申请人： Nobuya Okabe , Toichi Hirata , Kuniaki Yoshida , Genroku Sugiyama , Masakazu Haga , Hideaki Tanaka , Akira Tatsumi
发明人： Nobuya Okabe , Toichi Hirata , Kuniaki Yoshida , Genroku Sugiyama , Masakazu Haga , Hideaki Tanaka , Akira Tatsumi
IPC分类号： E02F9/22 , E02F9/20 , F15B9/04
CPC分类号： E02F9/2246 , B60W10/06 , B60W10/30 , B60W30/188 , E02F9/2235 , E02F9/2282 , E02F9/2292 , E02F9/2296 , B60W2300/17 , B60W2510/0638 , B60W2510/30 , B60W2540/04 , B60W2710/0644 , B60W2710/30
摘要： A control system for a hydraulic excavator having a prime mover, revolution number control device for the prime mover, at least one variable displacement hydraulic pump driven by the prime mover, displacement volume control device for the pump, actuators driven by pressurized fluid discharged from the pump and working elements driven by the respective actuators. The control system includes maximum revolution number altering device for the prime mover associated with the revolution number control device, maximum displacement volume altering device for the pump associated with the displacement volume control devices, devices for sensing the operation condition of the actuators, devices for selecting an operation mode for each working element and control devices. The maximum revolution number altering device provides at least one maximum revolution number of the prime mover and the maximum displacement volume altering device provides at least one maximum displacement volume so that maximum revolution numbers of the prime mover and maximum displacement volumes are arranged in a plurality of combinations. The plurality of combinations are set in association with the operation condition of the actuators and the selection of the operation mode. The control means selects a combination of the maximum revolution number of the prime mover and the maximum displacement volume of the pumps on basis of output signals of the sensors and selection devices and drives the maximum revolution number altering device and the maximum displacement volume altering device to set the maximum revolution number of the prime mover and the maximum displacement volume of the hydraulic pump.
摘要翻译：一种用于液压挖掘机的控制系统，具有用于原动机的原动机，转数控制装置，由原动机驱动的至少一个可变排量液压泵，用于泵的排量体积控制装置，由从泵和工作元件由相应的致动器驱动。控制系统包括与转数控制装置相关联的原动机的最大转数改变装置，与排量体积控制装置相关联的泵的最大排量变化装置，用于感测致动器的操作状态的装置，用于选择的装置每个工作元件和控制装置的操作模式。最大转数改变装置提供原动机的至少一个最大转速，并且最大排量改变装置提供至少一个最大排量，使得原动机和最大排量的最大转数排列成多个组合。多个组合与致动器的操作条件和操作模式的选择相关联地设置。控制装置基于传感器和选择装置的输出信号选择原动机的最大转数与泵的最大排量之间的组合，并将最大转数改变装置和最大排量变更装置驱动到设定原动机的最大转数和液压泵的最大排量。

75. 发明授权

US07127887B2 Oil pressure circuit for working machines 有权
标题翻译：工作机油压回路
公开(公告)号：US07127887B2
公开(公告)日：2006-10-31
申请号：US10514936
申请日：2004-03-15
申请人： Tsuyoshi Nakamura , Genroku Sugiyama , Tsukasa Toyooka , Kouji Ishikawa
发明人： Tsuyoshi Nakamura , Genroku Sugiyama , Tsukasa Toyooka , Kouji Ishikawa
IPC分类号： F16D31/02
CPC分类号： E02F9/2242 , E02F9/2217 , E02F9/2228 , E02F9/2282 , E02F9/2285 , E02F9/2292 , E02F9/2296 , F15B11/024 , F15B11/17 , F15B21/087 , F15B2211/20546 , F15B2211/20576 , F15B2211/30525 , F15B2211/30565 , F15B2211/3058 , F15B2211/3116 , F15B2211/31576 , F15B2211/31582 , F15B2211/327 , F15B2211/6309 , F15B2211/6355 , F15B2211/6654 , F15B2211/7053 , F15B2211/7058 , F15B2211/7128 , F15B2211/7135 , F15B2211/7142 , F15B2211/75 , F15B2211/76
摘要： A joining directional control valve 13 is disposed to supply, to an arm cylinder 4, not only a hydraulic fluid delivered from a first hydraulic pump 1, but also a hydraulic fluid delivered from a second hydraulic pump 2 when an arm directional control valve 14 is driven. Respective delivery pressures of the hydraulic pumps 1, 2 are detected by pressure sensors 101, 102, and the opening area of a recovery control valve 6 is controlled depending on a lower one of the detected pressures from the pressure sensors 101, 102 such that, even in the combined operation of the arm cylinder 4 and another actuator 3, 4, the hydraulic fluid can be recovered for return to the arm cylinder 4 when the load pressure of the arm cylinder 4 is low. Thus, by supplying the hydraulic fluids from the two hydraulic pumps to the particular actuator for which the hydraulic fluid is to be recovered, a recovery flow rate is ensured when the load of the particular actuator is low in the combined operation.
摘要翻译：设置连接方向控制阀13，以便在臂式方向控制阀14为臂式方向控制阀14时，不仅从第一液压泵1输送的液压流体和从第二液压泵2输送的液压流体向臂式液压缸4供给驱动。通过压力传感器101,102检测液压泵1,2的各自的输送压力，并且根据来自压力传感器101,102的检测压力中较低的一个来控制回收控制阀6的开口面积，即使在手臂缸4和另一个致动器3,4的组合操作中，当臂缸4的负载压力低时，也可以恢复液压流体以返回到臂缸4。因此，通过将来自两个液压泵的液压流体供应到要恢复液压流体的特定致动器，当组合操作中特定致动器的负载较低时，确保回收流量。

76. 发明申请

US20090090103A1 Hydraulic Drive Device 审中-公开
标题翻译：液压驱动装置
公开(公告)号：US20090090103A1
公开(公告)日：2009-04-09
申请号：US11915041
申请日：2006-05-25
申请人： Yoshitomo Yabuuchi , Genroku Sugiyama , Takeshi Kobayashi , Takashi Niidome , Takeshi Kurihara
发明人： Yoshitomo Yabuuchi , Genroku Sugiyama , Takeshi Kobayashi , Takashi Niidome , Takeshi Kurihara
IPC分类号： F15B15/00
CPC分类号： F16H47/02 , F04B23/06 , F16H2039/005 , F16H2047/025
摘要： A hydraulic drive system is provided with a front casing 50 and a rear ceasing 51. The front casing 50 is formed of a single member, and accommodates therein rotary members, which include a cylinder block 30A and the like, and a part of an output shaft 36 of a hydraulic motor 30 and rotary members, which include a cylinder block 31A and the like, and a part of an output shaft 32 of a hydraulic motor 31. The rear casing 51 is joined to the front casing 50, and has a ports plate 30C and a ports plate 31C arranged therein. The rear casing 51 has an oilway 52 communicating to a first port 30C1 of the ports plate 30C, an oilway 53 communicating to the oilway 52 and also communicating to a first port 31C1 of the ports plate 31C, an oilway 54 communicating to a second port 30C2 of the ports plate 30C, and an oilway 55 communicating to the oilway 54 and also communicating to a second port 31C2 of the ports plate 31C.
摘要翻译：液压驱动系统设置有前壳体50和后挡块51.前壳体50由单个构件形成，并且容纳在其中的包括气缸体30A等的旋转构件和一部分输出液压马达30的轴36和包括气缸体31A等的旋转构件和液压马达31的输出轴32的一部分。后壳体51接合到前壳体50，并且具有端口板30C和布置在其中的端口板31C。后壳体51具有与端口板30C的第一端口30C1连通的油路52，与油路52连通并且还与端口板31C的第一端口31C1连通的油路53，与第一端口连通的油路54 30C2，以及与油路54连通的油路55，并与端口板31C的第二端口31C2连通。

77. 发明授权

US07434394B2 Hydraulic drive device 有权
标题翻译：液压驱动装置
公开(公告)号：US07434394B2
公开(公告)日：2008-10-14
申请号：US10553414
申请日：2004-04-16
申请人： Kouji Ishikawa , Yusuke Kajita , Kazunori Nakamura , Genroku Sugiyama , Hideo Karasawa
发明人： Kouji Ishikawa , Yusuke Kajita , Kazunori Nakamura , Genroku Sugiyama , Hideo Karasawa
IPC分类号： F16D31/02 , F15B13/06
CPC分类号： E02F9/2235 , E02F9/2285 , E02F9/2296
摘要： To permit using hold-side pressure oil in a first hydraulic cylinder for the acceleration of a second hydraulic cylinder upon performing a combined operation of the first and second hydraulic cylinders, a hydraulic drive system is provided with a main hydraulic pump 21, a boom cylinder 6 and an arm cylinder 7, a directional control valve 23 for a boom and a directional control valve 24 for an arm, and a boom control device 25 and an arm control device 26. The hydraulic drive system is also provided with a pressure oil feed means for feeding pressure oil in a rod chamber 6b of the boom cylinder 6 to an upstream side of the directional control valve 24 for the arm when a bottom pressure of the arm cylinder 7 has increased to a high pressure equal to or higher than a predetermined pressure. This pressure oil feed means includes a flow combiner valve 44 arranged in a reservoir line 42 which can communicate to the rod chamber 6b of the boom cylinder 6. When the bottom pressure of the arm cylinder 7 is the predetermined pressure or higher, the flow combiner valve 44 maintains a communication line 40, which communicates the reservoir line 42 and the upstream side of the directional control valve 24 for the arm with each other, in a state that pressure oil can be fed to the upstream side of the directional control valve 24 for the arm.
摘要翻译：为了在执行第一和第二液压缸的组合操作时允许在第一液压缸中使用保持侧压力油来加速第二液压缸，液压驱动系统设置有主液压泵21，动臂缸悬臂气缸7，用于悬臂的方向控制阀23和用于臂的方向控制阀24，以及起重臂控制装置25和臂控制装置26。液压驱动系统还设置有压力油进给装置，用于当臂缸7的底部压力向臂的方向控制阀24的上游侧供给动臂缸6的杆室6b中的压力油时已经增加到等于或高于预定压力的高压。该压力供油装置包括设置在储存管路42中的流动组合器阀44，该储存管路42可与动臂缸6的杆室6b连通。当气缸7的底部压力为预定压力或更高压力时，组合阀44保持连通管路40，该连通管路40将储存管路42和臂的方向控制阀24的上游侧彼此连通，在压力油可以供给到用于臂的方向控制阀24的上游侧的状态下。

78. 发明申请

US20070028607A1 Hydraulic drive device 有权
标题翻译：液压驱动装置
公开(公告)号：US20070028607A1
公开(公告)日：2007-02-08
申请号：US10553414
申请日：2004-04-16
申请人： Kouji Ishikawa , Yusuke Kajita , Kazunori Nakamura , Genroku Sugiyama , Hideo Karasawa
发明人： Kouji Ishikawa , Yusuke Kajita , Kazunori Nakamura , Genroku Sugiyama , Hideo Karasawa
IPC分类号： F03C1/00
CPC分类号： E02F9/2235 , E02F9/2285 , E02F9/2296
摘要： To permit using hold-side pressure oil in a first hydraulic cylinder for the acceleration of a second hydraulic cylinder upon performing a combined operation of the first and second hydraulic cylinders, a hydraulic drive system is provided with a main hydraulic pump 21, a boom cylinder 6 and an arm cylinder 7, a directional control valve 23 for a boom and a directional control valve 24 for an arm, and a boom control device 25 and an arm control device 26. The hydraulic drive system is also provided with a pressure oil feed means for feeding pressure oil in a rod chamber 6b of the boom cylinder 6 to an upstream side of the directional control valve 24 for the arm when a bottom pressure of the arm cylinder 7 has increased to a high pressure equal to or higher than a predetermined pressure. This pressure oil feed means includes a flow combiner valve 44 arranged in a reservoir line 42 which can communicate to the rod chamber 6b of the boom cylinder 6. When the bottom pressure of the arm cylinder 7 is the predetermined pressure or higher, the flow combiner valve 44 maintains a communication line 40, which communicates the reservoir line 42 and the upstream side of the directional control valve 24 for the arm with each other, in a state that pressure oil can be fed to the upstream side of the directional control valve 24 for the arm.
摘要翻译：为了在执行第一和第二液压缸的组合操作时允许在第一液压缸中使用保持侧压力油来加速第二液压缸，液压驱动系统设置有主液压泵21，动臂缸悬臂气缸7，用于悬臂的方向控制阀23和用于臂的方向控制阀24，以及悬臂控制装置25和臂控制装置26.液压驱动系统还设有压力油进给用于当臂缸7的底部压力增加到等于或高于其的高压时将臂架缸6的杆室6b中的压力油供给到用于臂的方向控制阀24的上游侧的装置预定压力。该压力供油装置包括配置在储存管路42中的流动组合器阀44，其可与臂缸6的杆室6b连通。当臂缸7的底部压力为预定压力或更高时，组合阀44保持连通管线40，该连通管线40在压力油可以被供给到方向控制阀的上游侧的状态下将储存管路42和用于臂的方向控制阀24的上游侧彼此连通 24为手臂。

79. 发明授权

US06409142B1 Pipe breakage control valve device 失效
标题翻译：管道破损控制阀装置
公开(公告)号：US06409142B1
公开(公告)日：2002-06-25
申请号：US09857446
申请日：2001-06-04
申请人： Masao Kariya , Genroku Sugiyama
发明人： Masao Kariya , Genroku Sugiyama
IPC分类号： F16K3112
CPC分类号： F15B13/01 , F15B11/003 , F15B20/005 , F15B2211/30515 , F15B2211/30525 , F15B2211/3116 , F15B2211/31576 , F15B2211/329 , F15B2211/40515 , F15B2211/41527 , F15B2211/428 , F15B2211/46 , F15B2211/55 , F15B2211/8636 , Y10T137/7727
摘要： An input/output port 1 of a hose rupture control valve unit 100 is attached to a bottom port of a hydraulic cylinder 102, and an input/output port 2 is connected to one of actuator ports of a control valve 103 via an actuator line 105. The valve unit comprises a poppet valve body 5 serving as a main valve, a first spool valve body 6 serving as a pilot valve operated with a pilot pressure supplied as an external signal and having a pilot variable throttle portion 6a to operate the poppet valve body 5, a second spool valve body 50 operated with a pilot pressure and having a sub-variable throttle portion 50a to control a sub-flow rate, and a small relief valve 7 having the function of an overload relief valve.
摘要翻译：软管破裂控制阀单元100的输入/输出端口1附接到液压缸102的底部端口，并且输入/输出端口2经由致动器线105连接到控制阀103的致动器端口中的一个阀单元包括作为主阀的提升阀体5，作为先导阀的第一滑阀体6，作为外部信号供给的先导压力，并具有先导可变节流部6a，以使提升阀主体5，以先导压力操作并具有用于控制副流量的副可变节流部50a的第二滑阀体50和具有过载溢流阀功能的小型安全阀7。

80. 发明授权

US08051649B2 Hydraulically driven industrial machine 有权
标题翻译：液压驱动工业机械
公开(公告)号：US08051649B2
公开(公告)日：2011-11-08
申请号：US12278404
申请日：2007-02-06
申请人： Mitsuhiro Yoshimoto , Genroku Sugiyama
发明人： Mitsuhiro Yoshimoto , Genroku Sugiyama
IPC分类号： F16D31/02
CPC分类号： E02F9/226 , E02F9/2296 , F15B21/042 , F15B21/08 , F15B2211/20546 , F15B2211/327 , F15B2211/62 , F15B2211/6313 , F15B2211/6343 , F15B2211/7053 , F15B2211/7058 , Y02P80/13
摘要： A hydraulically driven industrial machine having a variable displacement type hydraulic pump adapted to take in and pressurized working oil from an working oil tank, a hydraulic actuator to be driven by pressurized working oil delivered from the hydraulic pump through a control valve to perform a predetermined job, a variable return oil cooling means capable of cooling return oil from the hydraulic actuator at a varying cooling rate, an operational load detection means adapted to detect an operational load factor of the hydraulic actuator, and a control means adapted to vary the return oil cooling rate on the basis of an operational load factor detected by the operational load detection means.
摘要翻译：一种液压驱动的工业机械，其具有适于从工作油箱吸入和加压工作油的可变排量型液压泵，液压致动器，其由通过控制阀从液压泵输送的加压工作油驱动以执行预定作业一种能够以变化的冷却速度从液压致动器中冷却回油的可变返回油冷却装置，适于检测液压致动器的操作负载系数的操作负载检测装置，以及适于改变回油冷却基于由操作负载检测装置检测的操作负载因子的速率。

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