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1. 发明授权

US5474145A Hydraulic power steering apparatus 失效
标题翻译：液压动力转向装置
公开(公告)号：US5474145A
公开(公告)日：1995-12-12
申请号：US304923
申请日：1994-09-13
申请人： Kyosuke Haga , Miko Suzuki , Kenichi Fukumura , Hideya Kato , Seiho Kawakami , Kaname Saito
发明人： Kyosuke Haga , Miko Suzuki , Kenichi Fukumura , Hideya Kato , Seiho Kawakami , Kaname Saito
IPC分类号： B62D5/07 , B62D5/06 , B62D6/02
CPC分类号： B62D6/02 , B62D5/062
摘要： A hydraulic power steering system includes a pump, a flow control valve, and a bypass control valve. The flow control valve responds to a pressure drop across a metering orifice disposed in a fluid supply passage so as to control the flow rate of operational fluid by bypassing part of the operational fluid to a reservoir. A spring chamber of the flow control valve is connected to the supply passage through a control orifice. The bypass control valve is disposed between the spring chamber and the reservoir so as to increase the amount of bypassed fluid by controlling the pressure in the spring chamber. The bypass control valve has a control spool, a load pressure introduction port connected to the upstream side of the control orifice for leading the load pressure to a first end of the control spool and a pilot port connected to the downstream side of the control orifice for leading the pressure in the spring chamber of the flow control valve to a second end of the control spool. Moreover, a pressure receiving area of the second end of the control spool is smaller than that of the first end of the control spool. Accordingly, a spring having a small spring constant can be used in the bypass control valve, even when the control spool is controlled within a short stroke.
摘要翻译：液压动力转向系统包括泵，流量控制阀和旁通控制阀。流量控制阀响应设置在流体供应通道中的计量孔的压降，以便通过将部分操作流体旁路到储存器来控制操作流体的流速。流量控制阀的弹簧室通过控制孔连接到供给通道。旁通控制阀设置在弹簧室和储存器之间，以通过控制弹簧室中的压力来增加旁路流体的量。旁通控制阀具有控制阀芯，连接到控制孔的上游侧的负载压力引入口，用于将负载压力引导到控制阀芯的第一端，以及连接到控制孔的下游侧的先导端口，将流量控制阀的弹簧室中的压力引导到控制阀芯的第二端。此外，控制阀芯的第二端的受压面积小于控制阀芯的第一端的受压面积。因此，即使控制阀芯在短行程内被控制，也可以在旁通控制阀中使用弹簧常数小的弹簧。

2. 发明授权

US5577573A Hydraulic power steering apparatus 失效
标题翻译：液压动力转向装置
公开(公告)号：US5577573A
公开(公告)日：1996-11-26
申请号：US357757
申请日：1994-12-16
申请人： Kyosuke Haga , Mikio Suzuki , Yoshiharu Inaguma , Kenichi Fukumura , Hideya Kato
发明人： Kyosuke Haga , Mikio Suzuki , Yoshiharu Inaguma , Kenichi Fukumura , Hideya Kato
IPC分类号： B62D5/06 , B62D6/02
CPC分类号： B62D5/062 , B62D6/02
摘要： A hydraulic power steering system includes a pump, a flow control valve, and a bypass control valve. The flow control valve responds to a pressure drop across a metering orifice disposed in a fluid supply passage so as to control the flow rate of operating fluid by bypassing a part of the operating fluid to a reservoir. A spring chamber of the flow control valve is connected to the supply passage through a control orifice. The bypass control valve is disposed between the spring chamber and the reservoir so as to increase the amount of bypassed fluid by controlling the pressure in the spring chamber. The bypass control valve has a control spool, a load pressure introduction port connected to the upstream side of the control orifice for leading the load pressure to a first end of the control spool and a pilot port connected to the downstream side of the control orifice for leading the pressure in the spring chamber of the flow control valve to a second end of the control spool. Moreover, a pressure receiving area of the second end of the control spool is smaller than that of the first end of the control spool. Accordingly, a spring having a small spring constant can be used in the bypass control valve, even when the control spool is controlled within a short stroke. Further, the control spool, the load pressure introduction port, and the pilot port are formed in a sleeve.
摘要翻译：液压动力转向系统包括泵，流量控制阀和旁通控制阀。流量控制阀响应设置在流体供应通道中的计量孔的压降，以便通过将一部分工作流体绕过储存器来控制工作流体的流量。流量控制阀的弹簧室通过控制孔连接到供给通道。旁通控制阀设置在弹簧室和储存器之间，以通过控制弹簧室中的压力来增加旁路流体的量。旁通控制阀具有控制阀芯，连接到控制孔的上游侧的负载压力引入口，用于将负载压力引导到控制阀芯的第一端，以及连接到控制孔的下游侧的先导端口，将流量控制阀的弹簧室中的压力引导到控制阀芯的第二端。此外，控制阀芯的第二端的受压面积小于控制阀芯的第一端的受压面积。因此，即使控制阀芯在短行程内被控制，也可以在旁通控制阀中使用弹簧常数小的弹簧。此外，控制阀芯，负载压力引入口和先导端口形成在套筒中。

3. 发明授权

US5439070A Hydraulic power steering apparatus 失效
标题翻译：液压动力转向装置
公开(公告)号：US5439070A
公开(公告)日：1995-08-08
申请号：US75307
申请日：1993-06-11
申请人： Kyosuke Haga , Mikio Suzuki , Yoshiharu Inaguma , Kenichi Fukumura , Hideya Kato , Katsuhisa Mori
发明人： Kyosuke Haga , Mikio Suzuki , Yoshiharu Inaguma , Kenichi Fukumura , Hideya Kato , Katsuhisa Mori
IPC分类号： B62D5/083 , B62D6/02 , F04B49/22 , B62D5/08
CPC分类号： B62D6/02 , B62D5/083 , F04B49/225 , F04B2205/06 , F04B2205/08 , F15B2211/45
摘要： A power steering apparatus having a hydraulic pump for outputting a pressurized fluid, an assist force generation mechanism hydraulically connected to the pump through a supply passage to generate an assist force in response to rotation of a steering wheel, wherein the assist force generation mechanism has a characteristic that the back pressure thereof increases when the steering wheel is rotated. The power steering apparatus further comprises a flow control valve having a spool which is moved in response to a pressure drop at a metering orifice disposed in the middle of the supply passage, so as to control the flow rate of the pressurized fluid to be constant. The spring chamber of the flow control valve is connected to a reservoir through a drain passage, and a drain valve is disposed in the drain passage for allowing the flow of pressurized fluid from the spring chamber to the reservoir when the back pressure of the assist force generation mechanism is low, and for prohibiting the flow of the pressurized fluid when the back pressure of the assist force generation mechanism increases.
摘要翻译：一种动力转向装置，其具有用于输出加压流体的液压泵，辅助力产生机构，其通过供给通道与泵液压连接，以产生响应于方向盘旋转的辅助力，其中辅助力产生机构具有其特征在于当方向盘旋转时其背压增加。动力转向装置还包括流量控制阀，该流量控制阀具有响应于设置在供给通道中间的计量孔口处的压降而移动的阀芯，以便控制加压流体的流量恒定。流量控制阀的弹簧室通过排水通道连接到储存器，并且排水阀设置在排水通道中，用于当加压流体从弹簧室流到储存器时，当辅助力的背压发电机构低，并且当辅助力产生机构的背压增加时禁止加压流体的流动。

4. 发明授权

US5515938A Hydraulic power steering apparatus 失效
标题翻译：液压动力转向装置
公开(公告)号：US5515938A
公开(公告)日：1996-05-14
申请号：US138963
申请日：1993-10-21
申请人： Kyosuke Haga , Mikio Suzuki , Yoshiharu Inaguma , Kenichi Fukumura , Hideya Kato , Katsuhisa Mori
发明人： Kyosuke Haga , Mikio Suzuki , Yoshiharu Inaguma , Kenichi Fukumura , Hideya Kato , Katsuhisa Mori
IPC分类号： B62D5/083 , B62D6/02 , F04B49/22 , B62D5/06
CPC分类号： B62D6/02 , B62D5/083 , F04B49/225 , F04B2205/06 , F04B2205/08
摘要： A power steering apparatus having a fluid source for discharging pressurized fluid, a power cylinder, a control valve responsive to operation of a steering wheel for supplying the power cylinder with pressurized fluid from the fluid source, and a reservoir. The control valve has a first control portion for controlling the flow of pressurized fluid from the fluid source to the reservoir, and a second control portion for controlling the flow of pressurized fluid to the power cylinder. The first control portion has two paths connecting the fluid source and the reservoir, each of the paths being formed with at least one variable orifice of a center-open type which opens when the control valve is in a neutral state. The second control portion has two supply paths communicating with the fluid source and a pair of chambers of the power cylinder, each of the supply paths being formed with a variable orifice of a center-close type which closes when the control valve is in the neutral state, and two drain paths communicating with the pair of chambers and the reservoir, each of the drain paths being formed with a variable orifice of a center-open type which opens when the control valve is in the neutral state.
摘要翻译：一种动力转向装置，具有用于排出加压流体的流体源，动力缸，响应于操作方向盘的控制阀，用于向动力缸提供来自流体源的加压流体和储存器。控制阀具有用于控制加压流体从流体源流向储存器的第一控制部分和用于控制加压流体流向动力缸的第二控制部分。第一控制部分具有连接流体源和储存器的两条路径，每个路径形成有至少一个中心开放型可变孔口，当可控制阀处于空档状态时，其可打开。第二控制部具有与流体源和动力缸的一对腔室连通的两个供给路径，每个供给路径形成有中心关闭型的可变孔口，当控制阀处于中立状态时，该可变孔口关闭状态和与所述一对室和所述储存器连通的两个排放路径，每个所述排水路径形成有当所述控制阀处于中立状态时打开的中心开式的可变孔口。

5. 发明授权

US5778756A Hydraulic power steering apparatus 失效
标题翻译：液压动力转向装置
公开(公告)号：US5778756A
公开(公告)日：1998-07-14
申请号：US828366
申请日：1997-03-28
申请人： Kyosuke Haga , Mikio Suzuki , Kenichi Fukumura
发明人： Kyosuke Haga , Mikio Suzuki , Kenichi Fukumura
IPC分类号： B62D5/07 , B62D5/06 , B62D5/083 , F15B11/08 , F16D31/02
CPC分类号： B62D5/06
摘要： A hydraulic power steering apparatus includes a fluid pump, a power cylinder, a reservoir, and a control valve connected to the pump via a supply passage including a high pressure hose and connected to the reservoir via a drain passage. The power steering apparatus also includes a bypass passage provided between the supply passage and the drain passage, and a check valve which is disposed in the bypass passage to allow operation fluid to flow only in a direction from the drain passage to the supply passage. The power steering apparatus can supply a sufficient amount of operation fluid to the power cylinder even when a steering wheel is abruptly turned or when an opposing force is input from a tire.
摘要翻译：液压动力转向装置包括流体泵，动力缸，储存器和通过包括高压软管的供给通道连接到泵的控制阀，并且经由排水通道连接到储存器。动力转向装置还包括设置在供给通道和排出通道之间的旁通通道，以及设置在旁通通道中的止回阀，以允许操作流体仅沿着从排放通道到供给通道的方向流动。动力转向装置即使在方向盘突然转动时或者从轮胎输入相反的力量时，也能向动力缸提供足够量的操作流体。

6. 发明授权

US5651423A Power steering apparatus 失效
标题翻译：动力转向装置
公开(公告)号：US5651423A
公开(公告)日：1997-07-29
申请号：US452699
申请日：1995-05-30
申请人： Kyosuke Haga , Mikio Suzuki , Yoshiharu Inaguma , Hideya Kato
发明人： Kyosuke Haga , Mikio Suzuki , Yoshiharu Inaguma , Hideya Kato
IPC分类号： B62D5/06 , B62D5/07 , B62D6/02 , B62D5/087
CPC分类号： B62D5/062 , B62D6/02
摘要： A hydraulic power steering apparatus includes a motor-driven pump which discharges pressurized working fluid at a flow rate proportional to the rotational speed. A load-pressure responsive valve is connected to a discharge passage to which the pressurized fluid is discharged from the pump. The load-pressure responsive valve bypasses the pressurized fluid to a reservoir when the control valve is in a neutral state, thereby reducing the amount of the pressurized fluid supplied to the control valve, and increases the amount of the pressurized fluid supplied to the control valve when the load pressure of the pump increases upon operation of the control valve. With this control, the energy consumed by the pump can be reduced.
摘要翻译：液压动力转向装置包括电动泵，其以与转速成比例的流量排出加压工作流体。负载压力响应阀连接到排出通道，加压流体从泵排出。当控制阀处于中立状态时，负载压力响应阀将加压流体旁路到储存器，从而减少供给到控制阀的加压流体的量，并且增加供给到控制阀的加压流体的量当操作控制阀时泵的负载压力增加。通过这种控制，可以减少泵消耗的能量。

7. 发明授权

US4610614A Vane pump 失效
标题翻译：叶片泵
公开(公告)号：US4610614A
公开(公告)日：1986-09-09
申请号：US696514
申请日：1985-01-30
申请人： Kyosuke Haga , Tsuneo Tanaka , Toshifumi Sakai
发明人： Kyosuke Haga , Tsuneo Tanaka , Toshifumi Sakai
IPC分类号： F01C21/08 , F04C2/344 , F04C15/00 , F04C18/00
CPC分类号： F01C21/0863 , F04C15/0049 , F04C2/3446
摘要： In a vane pump, a pump housing contains a cam ring having an internal cam surface, in which a rotor carrying eight vanes is rotatable by a drive shaft. A pair of side plates positioned in the receiving bore in contact engagement with the opposite end surface of the cam ring, the internal cam surface and the rotor define a pump chamber. Each of the side plates is formed at its inside surface contacting the cam ring with a pair of intake ports, a pair of exhaust ports and a vane back pressure groove. This groove is always filled with pressurized fluid supplied from the exhaust ports such that the pressurized fluid is directed into vane support slits formed in the rotor. The angular width between the start point of each of the intake ports and the start point of one of the exhaust ports is chosen to an angle of 90 degrees which is twice the pitch of the vanes, and the angular width of each of the exhaust ports is chosen to be not larger than or angular width which outer end surfaces of two successive vanes make, whereby the volume of pressurized fluid which leaks from the vane back pressure groove towards the intake ports through a clearance between the rotor and each side plate can be maintained constant.
摘要翻译：在叶片泵中，泵壳体包含具有内部凸轮表面的凸轮环，其中承载八个叶片的转子可由驱动轴旋转。定位在接收孔中的一对侧板与凸轮环的相对端表面接触接合，内凸轮表面和转子限定泵室。每个侧板在其与凸轮环接触的内表面形成有一对进气口，一对排气口和叶片背压槽。该槽总是填充有从排气口供应的加压流体，使得加压流体被引导到形成在转子中的叶片支撑狭缝中。每个进气口的起始点与其中一个排气口的起点之间的角度宽度被选择为90度的角度，该角度是叶片间距的两倍，并且每个排气口的角度宽度被选择为不大于或两个连续叶片的外端表面的角度宽度，由此通过转子和每个侧板之间的间隙从叶片背压槽向进气口泄漏的加压流体的体积可以是保持不变。

8. 发明授权

US4246577A Tool breakage detecting apparatus 失效
标题翻译：刀具破损检测装置
公开(公告)号：US4246577A
公开(公告)日：1981-01-20
申请号：US935779
申请日：1978-08-22
申请人： Yoshio Shima , Kyosuke Haga , Kunihiko Eto , Tetsuro Yamakage
发明人： Yoshio Shima , Kyosuke Haga , Kunihiko Eto , Tetsuro Yamakage
IPC分类号： B23B47/24 , B23B49/00 , G05B19/4065 , G01B11/14 , G08B21/00
CPC分类号： B23B49/001 , B23Q17/2241 , G05B19/4065 , G05B2219/37245 , G05B2219/45129
摘要： A tool breakage detecting apparatus is provided with a preset counter to be preset with a predetermined value. The content of the counter is subtracted one by one each time either one of a tool and a workpiece to be machined is moved a unit distance toward the other thereof from a cutting movement start position being spaced a predetermined distance from the other thereof. If the content of the counter is reduced an amount corresponding to a distance larger than the predetermined distance, tool breakage is detected.
摘要翻译：工具破损检测装置设置有预设有预定值的预设计数器。每当工具和要加工的工件中的任一个从距离另一个间隔预定距离的切割移动开始位置朝向另一个移动单位距离时，逐个减去计数器的内容。如果计数器的内容减少了对应于大于预定距离的距离的量，则检测到刀具断裂。

9. 发明授权

US5178249A Rotary coupling for torque transmission 失效
标题翻译：用于转矩传递的旋转联轴器
公开(公告)号：US5178249A
公开(公告)日：1993-01-12
申请号：US813690
申请日：1991-12-27
申请人： Kyosuke Haga , Satoshi Ashida , Yukihiro Tanigawa
发明人： Kyosuke Haga , Satoshi Ashida , Yukihiro Tanigawa
IPC分类号： F16D35/00 , F16D43/284 , F16D47/06
CPC分类号： F16D43/284 , F16D35/00 , F16D35/005 , F16D47/06
摘要： A rotary coupling for torque transmission is arranged between two relatively rotatable shafts to transmit a rotational torque in response to a rotational speed difference therebetween. The device includes a housing connected to the first shaft for rotation therewith, a clutch means for transmitting rotational torque between two shafts, and a piston which thrusts the clutch means in the axial direction. The rotary coupling also includes a rotor received in a cylindrical space, in which a high viscous fluid is filled to be compulsorily moved by the rotor. Each side surface of the rotor is provided with plural depressions at regular interval in the circumferential direction. The depressions have inclining surfaces inclining in the rotational direction of the rotor. When a rotational speed difference occurs between the two shafts, wedge effects occur between the inclined surfaces and the housing and between the inclined surface and the piston so that a high pressure is generated in the space section quickly.
摘要翻译：用于扭矩传递的旋转联轴器设置在两个相对旋转的轴之间，以响应于它们之间的转速差而传递旋转扭矩。该装置包括连接到第一轴以与其一起旋转的壳体，用于在两个轴之间传递旋转扭矩的离合器装置和沿轴向推动离合器装置的活塞。旋转联轴器还包括容纳在圆柱形空间中的转子，其中高粘性流体被填充以被转子强制地移动。转子的每个侧表面在圆周方向上以规则间隔设置有多个凹部。凹部具有在转子的旋转方向上倾斜的倾斜面。当在两个轴之间产生转速差时，在倾斜表面和壳体之间以及倾斜表面和活塞之间产生楔形效应，使得在空间部分中快速产生高压。

10. 发明授权

US5046933A Vane pump with pressure leaking groove to reduce pulsations 失效
标题翻译：叶片泵与压力泄漏槽减少脉动
公开(公告)号：US5046933A
公开(公告)日：1991-09-10
申请号：US450081
申请日：1989-12-13
申请人： Kyosuke Haga , Tsuneo Tanaka , Makoto Kawahara , Tatsuya Yamamoto
发明人： Kyosuke Haga , Tsuneo Tanaka , Makoto Kawahara , Tatsuya Yamamoto
IPC分类号： F04C15/00
CPC分类号： F04C15/0049
摘要： In a vane pump, a pump housing assembly contains a cam ring having an internal cam surface. A rotor carrying plural vanes is disposed within the cam ring and rotated by a drive shaft. Both end surfaces of the cam ring contact with a pair of flat contact surfaces formed within the pump housing assembly, respectively, and the vanes define plural pump sectors between the rotor and the cam ring, together with the rotor, the cam ring and the pair of contact surfaces. The contact surfaces are formed with a pair of intake ports and a pair of exhaust ports. Furthermore, one of the contact surfaces is provided with a pair of pressure leaking grooves formed at locations between the intake ports and the exhaust ports. The locations of the pressure leaking grooves are chosen so as to leak fluid in pump sectors communicating with the exhaust ports to adjacent pump sectors communicating with the intake ports through passages formed by the pressure leaking grooves and the side edges of vanes located between the two pump sectors whenever the instantaneous pressure of the fluid in the exhaust ports approaches an instantaneous maximum pressure. With this operation, the instantaneous maximum pressure is decreased, thereby the amplitude of the pressure pulsation being reduced.

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