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1. 发明授权

US07124577B2 Vehicular steering control device 有权
标题翻译：车辆转向控制装置
公开(公告)号：US07124577B2
公开(公告)日：2006-10-24
申请号：US11004815
申请日：2004-12-07
申请人： Nobuhisa Honda , Shuuji Hori , Sadao Nunotani , Naoki Ishizaki , Hisashi Asada
发明人： Nobuhisa Honda , Shuuji Hori , Sadao Nunotani , Naoki Ishizaki , Hisashi Asada
IPC分类号： F16D31/02
CPC分类号： B62D5/065
摘要： The present invention lowers energy loss while at the same time enhancing the responsiveness of a steering control system. When a steering controller is operated rapidly, the aperture area of a steering flow control valve 4 rapidly increases, and the differential pressure (Pp′-PL) across the steering flow control valve 4 rapidly decreases. When the differential pressure (Pp′-PL) across the steering flow control valve 4 rapidly decreases, a flow control valve 6 is biased by the spring force of a spring 6f and quickly moves to the side of a valve position 6b to increase the differential pressure (Pp′-PL) and make it correspond to a set pressure. Thus, the pressure oil of a surplus flow α, which up to this point has been flowing to a discharge oil line 7, is quickly supplied from the flow control valve 6 to a steering hydraulic cylinder 5 via the steering flow control valve 4. Thus, an output Q′ starts quickly relative to an input St.
摘要翻译：本发明降低了能量损失，同时提高了转向控制系统的响应性。当转向控制器快速操作时，转向流量控制阀4的开口面积迅速增加，并且转向流量控制阀4两端的差压（Pp'-PL）急剧下降。当转向流量控制阀4上的差压（Pp'-PL）急剧下降时，流量控制阀6被弹簧6f的弹簧力所偏压，并快速移动到阀位6b侧，以增加压差（Pp'-PL）使其对应于设定压力。因此，直到这一点已经流到排放油管线7的多余流量α的压力油通过转向流量控制阀4从流量控制阀6迅速地供给到转向液压缸5。因此，输出Q'相对于输入信号St.

2. 发明申请

US20050126165A1 Vehicular steering control device 有权
标题翻译：车辆转向控制装置
公开(公告)号：US20050126165A1
公开(公告)日：2005-06-16
申请号：US11004815
申请日：2004-12-07
申请人： Nobuhisa Honda , Shuuji Hori , Sadao Nunotani , Naoki Ishizaki , Hisashi Asada
发明人： Nobuhisa Honda , Shuuji Hori , Sadao Nunotani , Naoki Ishizaki , Hisashi Asada
IPC分类号： B62D6/00 , B62D5/065 , B62D5/07 , B62D5/093 , B62D113/00 , F16D31/02
CPC分类号： B62D5/065
摘要： The present invention lowers energy loss while at the same time enhancing the responsiveness of a steering control system. When a steering controller is operated rapidly, the aperture area of a steering flow control valve 4 rapidly increases, and the differential pressure (Pp′-PL) across the steering flow control valve 4 rapidly decreases. When the differential pressure (Pp′-PL) across the steering flow control valve 4 rapidly decreases, a flow control valve 6 is biased by the spring force of a spring 6f and quickly moves to the side of a valve position 6b to increase the differential pressure (Pp′-PL) and make it correspond to a set pressure. Thus, the pressure oil of a surplus flow α, which up to this point has been flowing to a discharge oil line 7, is quickly supplied from the flow control valve 6 to a steering hydraulic cylinder 5 via the steering flow control valve 4. Thus, an output Q′ starts quickly relative to an input St.
摘要翻译：本发明降低了能量损失，同时提高了转向控制系统的响应性。当转向控制器快速操作时，转向流量控制阀4的开口面积迅速增加，并且转向流量控制阀4两端的差压（Pp'-PL）急剧下降。当转向流量控制阀4上的差压（Pp'-PL）急剧下降时，流量控制阀6被弹簧6f的弹簧力所偏压，并快速移动到阀位6b侧，以增加压差（Pp'-PL）使其对应于设定压力。因此，直到这一点已经流到排放油管线7的多余流量α的压力油通过转向流量控制阀4从流量控制阀6迅速地供给到转向液压缸5。因此，输出Q'相对于输入信号St.

3. 发明授权

US5136930A Apparatus for supplying pressure oil to hydraulic cylinders employed in working machines 失效
标题翻译：用于将压力油供应到在工作机器上运行的液压缸的装置
公开(公告)号：US5136930A
公开(公告)日：1992-08-11
申请号：US474042
申请日：1990-06-20
申请人： Tadao Karakama , Hiroshi Endo , Sadao Nunotani , Naoki Ishizaki , Toshiro Takano
发明人： Tadao Karakama , Hiroshi Endo , Sadao Nunotani , Naoki Ishizaki , Toshiro Takano
IPC分类号： E02F9/22 , F15B13/01 , F15B20/00 , F16L55/10 , F15B11/08
CPC分类号： F15B13/015 , E02F9/226 , F16L55/1022 , Y10T137/87201 , Y10T137/87209
摘要： An apparatus for supplying a pressure oil to a plurality of hydraulic cylinders of a working machine such as power shovels provided with working equipment such as shovels, wherein the cylinders are contracted at the same speed to move down or lower the working equipments at the same speed, so that the working equipment are prevented from suddenly dropping off in operation even if pressure oil passages (a, b) supplying the pressure oil to the cylinders are damaged during operation. The apparatus comprises: a lock valve assembly (B) provided with a valve housing (70) mounted on a cylinder tube of each of the hydraulic cylinders, in which valve housing (70) a check valve (77), a poppet valve (78) and a pilot valve (79) are mounted; and a directional control valve assembly (C) for selectively supplying the pressure oil to a lifting-movement pressure chamber (9a) and a lowering-movement pressure chamber (9b) of each of the hydraulic cylinders through the pressure oil passages (a, b), respectively.

4. 发明授权

US5234028A Variable pressure control valve 失效
标题翻译：可变压力控制阀
公开(公告)号：US5234028A
公开(公告)日：1993-08-10
申请号：US761341
申请日：1991-09-06
申请人： Toshiro Takano , Sadao Nunotani , Naoki Ishizaki
发明人： Toshiro Takano , Sadao Nunotani , Naoki Ishizaki
IPC分类号： G05D16/04 , G05D16/10 , G05D16/20
CPC分类号： G05D16/18 , Y10T137/7905
摘要： A variable pressure control valve arranged to enable a pilot piston having a comparatively small diameter to be used thereby making the whole body of the valve compact. This variable pressure control valve comprises a spool (2) kept in pressure contact with the valve seat of a pressurized fluid inlet port (1) by the resilient force of a compression spring (3); a stationary valve shoe (5) fixed so as to support the base end of the compression spring; and an auxiliary compression spring (6) which urges the spool (2) to the side of the valve seat on one side thereof and is urged by a pilot piston (4) on the other side thereof.
摘要翻译： PCT No.PCT / JP90 / 00317 Sec。 371日期1991年9月6日 102（e）1991年9月6日PCT PCT 1990年3月9日PCT公布。 WO90 / 10901 PCT出版物 1990年9月20日。一种可变压力控制阀，其设置成能够使用具有相对较小直径的先导活塞，从而使阀体的整体致密。该可变压力控制阀包括通过压缩弹簧（3）的弹性力保持与加压流体入口（1）的阀座压力接触的阀芯（2）; 固定阀座（5），固定在支承压缩弹簧的基端部; 以及辅助压缩弹簧（6），该辅助压缩弹簧（6）在其一侧将阀芯（2）推压到阀座的侧面，并且由另一侧的先导活塞（4）推动。

5. 发明授权

US4984603A Flow control valve assembly 失效
标题翻译：流量控制阀总成
公开(公告)号：US4984603A
公开(公告)日：1991-01-15
申请号：US425162
申请日：1989-10-17
申请人： Tadao Karakama , Naoki Ishizaki , Toshiro Takano , Sadao Nunotani
发明人： Tadao Karakama , Naoki Ishizaki , Toshiro Takano , Sadao Nunotani
IPC分类号： G05D7/01 , G05D16/00
CPC分类号： G05D7/0193 , Y10T137/7764
摘要： A flow control valve assembly, for preventing the pressure oil confined in an inlet port of a valve housing from pulsating and for additionally performing a safety valve function without employing a separate safety valve, has a valve housing which is easy in machining thereof and neat in construction. In the valve housing of the flow control valve assembly is formed a valve-receiving bore (21) in which a poppet (32) and a second spool valve (51), serving as a safety valve, are axially aligned with each other in series. In the valve housing (20), a hydraulic operating oil flows to a communication port (39) of the poppet (32) through an inlet port (23) formed in the valve housing (20), and then further flows to a back-pressure chamber portions (38a, 38b) of the poppet (32) through a variable orifice (44). The pressure oil, having been received in the back-pressure chamber portion (38b), flows out of the portion (38b) to an outer peripheral portion of the second spool valve ( 51). On the other hand, the pressure oil confined in the inlet port (23) flows to a pressure-receiving chamber (56) of the second spool valve (51).
摘要翻译： PCT No.PCT / JP89 / 00203 Sec。 371日期：1989年10月17日 102（e）日期1989年10月17日PCT提交1989年2月28日PCT公布。出版物WO89 / 08291 日本1989年9月8日。一种流量控制阀组件，用于防止限制在阀壳体的入口中的压力油脉动并且用于在不使用单独的安全阀的情况下额外执行安全阀功能。具有阀壳体容易加工，整洁。在流量控制阀组件的阀壳体中形成有阀接收孔（21），其中用作安全阀的提升阀（32）和第二滑阀（51）串联地彼此轴向对准。在阀壳体（20）中，液压操作油通过形成在阀壳体（20）中的入口（23）流到提升阀（32）的连通口（39）提升阀（32）的压力室部分（38a，38b）通过可变孔口（44）。已经被容纳在背压室部分（38b）中的压力油从部分（38b）流出到第二滑阀（51）的外周部分。另一方面，限制在入口（23）中的压力油流入第二滑阀51的受压室56。

6. 发明授权

US5163477A Electrohydraulic proportional control valve 失效
标题翻译：电动比例控制阀
公开(公告)号：US5163477A
公开(公告)日：1992-11-17
申请号：US720509
申请日：1991-06-24
申请人： Toshiro Takano , Sadao Nunotani , Naoki Ishizaki
发明人： Toshiro Takano , Sadao Nunotani , Naoki Ishizaki
IPC分类号： F16K31/06
CPC分类号： F16K31/0613 , Y10T137/86622
摘要： This invention relates to an electrohydraulic proportional control valve which continually provides pressurized oil into an oil path on the output side to prevent the existence of air therein and which can move a spool without any time delay when a solenoid is energized, thus improving response. The hydraulic proportional control valve includes a spool which establishes/cuts off communication between an inlet port communicating with a hydraulic pump and an outlet port on the output side, a spring disposed in such a manner as to apply to the base end of the spool such a spring force, which is in equilibrium with the oil pressure force acting on the tip of the spool so as to keep the spool at the position where the inlet port and the outlet port slightly communicate with each other, and a moving rod disposed in such a manner as to oppose the base end of the spool. The control valve further includes a solenoid, which biases the spool in a direction in which the inlet port and the outlet port communicate completely with each other.

7. 发明授权

US4646622A Hydraulic control apparatus 失效
标题翻译：液压控制装置
公开(公告)号：US4646622A
公开(公告)日：1987-03-03
申请号：US800188
申请日：1985-11-21
申请人： Naoki Ishizaki , Sadao Nunotani , Tatsumi Tada , Kazuo Uehara , Shuki Akushicki
发明人： Naoki Ishizaki , Sadao Nunotani , Tatsumi Tada , Kazuo Uehara , Shuki Akushicki
IPC分类号： F15B13/042 , B66C13/18 , F15B13/043
CPC分类号： B66C13/18 , Y10T137/87209
摘要： A hydraulic control apparatus has at least two meter-in and two meter-out poppet valves. In order to be compact and deal with a great flow rate, the apparatus is arranged such that a pair of meter-in poppet valves and load check valves are located in an upper horizontal plane, a pair of meter-out poppet valves and solenoid-actuated pilot valves are located in a lower horizontal plane, and a pair of a pilot valve associated with the meter-out poppet valve and a reducing valve associated with the meter-in poppet valve are located in a middle horizontal plane and are respectively disposed in opposed relationship to each other, and the load check valve is vertically located in parallel relationship with the meter-out poppet valve.
摘要翻译：一个液压控制装置具有至少两个输入和两个出口的提升阀。为了紧凑化并且处理大流量，该装置被布置成使得一对插入式提升阀和负载止回阀位于上水平面中，一对出口提升阀和螺线管 - 致动先导阀位于下水平面上，与出口提升阀相关联的一对先导阀和与插入式提升阀相关联的减压阀位于中间水平面中，分别设置在相反的关系，负载止回阀与排出提升阀平行地垂直设置。

8. 发明授权

US5255705A Hydraulic pressure control system 失效
公开(公告)号：US5255705A
公开(公告)日：1993-10-26
申请号：US210245
申请日：1988-06-24
申请人： Kazuo Uehara , Tadao Karakama , Sadao Nunotani , Naoki Ishizaki , Masayuki Tanaami
发明人： Kazuo Uehara , Tadao Karakama , Sadao Nunotani , Naoki Ishizaki , Masayuki Tanaami
IPC分类号： F15B11/08 , F15B13/04 , F15B13/042 , F16K31/383 , G05D7/01
CPC分类号： F15B13/0405 , F15B11/08 , F15B13/0422 , F15B2211/405 , F15B2211/40507 , F15B2211/40515 , F15B2211/40576 , F15B2211/41572 , F15B2211/42 , F15B2211/428 , F15B2211/6355 , F15B2211/67 , Y10T137/7764
摘要： A pressure control system in which a pressure in a back pressure chamber of a flow control valve is controlled according to a throttle opening of a pilot valve to locate stationary the valve body of the flow control valve at a position corresponding to the throttle opening of the pilot valve. In the system, a fixed throttle is provided in an oil passage extended to the back pressure chamber of the flow control valve, thereby applying a dampering action to the valve body.

9. 发明授权

US5253672A Hydraulic pressure control system 失效
标题翻译：液压控制系统
公开(公告)号：US5253672A
公开(公告)日：1993-10-19
申请号：US336570
申请日：1989-04-11
申请人： Kazuo Uehara , Tadao Karakama , Sadao Nunotani , Naoki Ishizaki , Masayuki Tanaami
发明人： Kazuo Uehara , Tadao Karakama , Sadao Nunotani , Naoki Ishizaki , Masayuki Tanaami
IPC分类号： F15B11/08 , F15B13/04 , F15B13/042 , F16K31/383 , G05D7/01
CPC分类号： F15B13/0405 , F15B11/08 , F15B13/0422 , F15B2211/405 , F15B2211/40507 , F15B2211/40515 , F15B2211/40576 , F15B2211/41572 , F15B2211/42 , F15B2211/428 , F15B2211/6355 , F15B2211/67 , Y10T137/7764
摘要： A pressure control system in which a pressure in a back pressure chamber of a flow control valve is controlled according to a throttle opening of a pilot valve to locate stationary the valve body of the flow control valve at a position corresponding to the throttle opening of the pilot valve. In the system, a fixed throttle is provided in an oil passage extended to the back pressure chamber of the flow control valve, thereby applying a dampering action to the valve body.
摘要翻译：一种压力控制系统，其中根据先导阀的节气门开度来控制流量控制阀的背压室中的压力，以将流量控制阀的阀体定位在与所述流量控制阀的节气门开度相对应的位置先导阀。在该系统中，在通向流量控制阀的背压室的油路中设置有固定的节气门，从而对阀体施加阻尼作用。

10. 发明授权

US5076144A Poppet valve device 失效
标题翻译： POPPET阀装置
公开(公告)号：US5076144A
公开(公告)日：1991-12-31
申请号：US474029
申请日：1990-06-20
申请人： Tadao Karakama , Sadao Nunotani , Naoki Ishizaki , Toshiro Takano
发明人： Tadao Karakama , Sadao Nunotani , Naoki Ishizaki , Toshiro Takano
IPC分类号： F15B13/02
CPC分类号： F15B13/02 , Y10T137/87201 , Y10T137/87893
摘要： A poppet valve device according to the present invention is adapted to sequentially operate a plurality of poppet valves the switching operation of a pilot valve, for example, an electromagnetic solenoid or the like which operates in response to an external input signal. The above-mentioned poppet valve device includes first and second poppet valves (A, B) each of which is constructed so that a poppet (32) for communicating or intercepting an inlet port (30) and an outlet port (31) with or from each other may be moved towards a communicating position by an inlet port side pressure acting upon its pressure receiving portion (32a). The poppet (32) may be moved towards an intercepting position by a pressure acting upon its back pressure chamber (38a, 38b). A pilot valve (c) connects the respective back pressure chambers of these poppet valves to a tank (2) and includes a variable choke portion controlled by an external input signal so that the pressures at the respective back pressure chambers, when the respective poppets of the respective poppet valves are moved to the positions for communicating the respective inlet ports with the respective outlet ports, may be different from each other.

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