专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

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

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。

3. 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.

4. 发明授权

US4452274A Rotary valve for power steering system 失效
标题翻译：动力转向系统旋转阀
公开(公告)号：US4452274A
公开(公告)日：1984-06-05
申请号：US268380
申请日：1981-05-29
申请人： Kyosuke Haga , Tsuneo Tanaka
发明人： Kyosuke Haga , Tsuneo Tanaka
IPC分类号： B62D5/083 , B62D5/22 , F15B9/10
CPC分类号： B62D5/083 , Y10T137/86646
摘要： A rotary valve for a power steering system includes a valve sleeve in which a rotor is rotatably carried for controlling fluid flow from a supply pump to a cylinder of the power steering system. A plurality of lands are formed on the outer periphery of the rotor, at least three of which have the same configuration. A plurality of lands are formed on the inner periphery of the valve sleeve, at least two of which have the same configuration to thereby vary the areas of two orifices formed between the three lands of the rotor and the two lands of the valve sleeve at the same rate during relative rotation therebetween. Further, the edge portions of the three lands of the rotor are formed with two longitudinally curved slopes so as to provide an optimum two-step valving characteristic. Furthermore, two of lands formed on the rotor have at each side edge portion thereof a longitudinaly curved and radially extending wall so as to form additional orifice areas to provide an optimum valving characteristic by combining the same with the above two orifice areas.
摘要翻译：一种用于动力转向系统的旋转阀包括阀套，其中转子被可转动地承载，用于控制从供给泵到动力转向系统的气缸的流体流动。在转子的外周上形成有多个平台，其中至少三个具有相同的构造。在阀套的内周形成有多个平台，其中至少两个具有相同的构造，从而改变在转子的三个平台和阀套的两个平台之间形成的两个孔的面积在它们之间的相对旋转期间相同的速率。此外，转子的三个台阶的边缘部分形成有两个纵向弯曲的斜面，以便提供最佳的两阶段阀门特性。此外，形成在转子上的两个区域在其每个侧边缘部分处具有纵向弯曲和径向延伸的壁，以便形成附加的孔面积，以通过将其与上述两个孔口区域组合而提供最佳阀门特性。

5. 发明授权

US4189963A Index apparatus for rotary table 失效
标题翻译：旋转台索引装置
公开(公告)号：US4189963A
公开(公告)日：1980-02-26
申请号：US928250
申请日：1978-07-26
申请人： Yoshikazu Sano , Kyosuke Haga , Kengo Yoshioka
发明人： Yoshikazu Sano , Kyosuke Haga , Kengo Yoshioka
IPC分类号： B23Q16/06 , B23Q16/10 , G01B5/24 , B23B29/24 , B23Q17/00
CPC分类号： B23Q16/102 , Y10T74/1418 , Y10T74/1424 , Y10T74/1447 , Y10T74/1476 , Y10T74/1488
摘要： An index apparatus for indexing a rotary table rotatably and vertically slidably received within a base, comprises a pair of coupling members secured to the rotary table and the base, respectively, and engageable with each other. The rotary table is lifted and lowered by a hydraulic actuator. The rotary table is rotated by a drive means including a drive motor. Generating means are provided to generate a signal each time the rotary table is rotated a unit angle. Control means are provided to reduce the rotational speed of the rotary table in response to the number of signals generated from the generating means, when the rotary table is rotated to a position spaced a predetermined angular distance from a desired angular position thereof. Control means also cause the rotation of the rotary table to stop in response to the number of signals from the generating means, when the rotary table is rotated to the desired angular position thereof.
摘要翻译：一种用于将旋转台可转动并垂直地可滑动地容纳在基座内的转台的分度装置，包括分别固定到旋转台和底座并可彼此接合的一对联接构件。旋转台由液压执行器升降。旋转台由包括驱动马达的驱动装置旋转。提供生成装置以在每次旋转台旋转单位角度时产生信号。提供控制装置，用于响应于从发生装置产生的信号的数量，当旋转台旋转到与其期望的角位置间隔预定的角距离的位置时，减小旋转台的旋转速度。当旋转台旋转到其期望的角位置时，控制装置还响应于来自发生装置的信号的数量使旋转台的旋转停止。

6. 发明授权

US5638912A Hydraulic power steering apparatus 失效
标题翻译：液压动力转向装置
公开(公告)号：US5638912A
公开(公告)日：1997-06-17
申请号：US339229
申请日：1994-11-10
申请人： Kyosuke Haga , Mikio Suzuki , Katsuhisa Mori
发明人： Kyosuke Haga , Mikio Suzuki , Katsuhisa Mori
IPC分类号： B62D5/07 , B62D5/083
CPC分类号： B62D5/083
摘要： A power steering apparatus is composed 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 four paths communicating with the fluid source and the reservoir, and each of the four paths is formed with a center-open variable orifice 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 two supply paths is formed with a semi-center-open variable orifice which opens when the control valve is in the neutral state, and two drain paths communicating with the chambers of the power cylinder and the reservoir, each of the two drain paths is formed with a center-closed variable orifice of which closes when the control valve is in the neutral state.
摘要翻译：动力转向装置包括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。第一控制部分具有与流体源和储存器连通的四个路径，并且四个路径中的每一个路径形成有当控制阀处于中立状态时打开的中心可开启的可变孔口。第二控制部具有与流体源连通的两个供给路径和动力缸的一对室，两个供给路径中的每一个形成有半中心开口的可变孔，当控制阀处于中立状态时打开状态和与动力缸和储存器的腔室连通的两个排放路径，两个排水路径中的每一个形成有中心闭合的可变孔口，当控制阀处于空档状态时，其可关闭。

7. 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。

8. 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。

9. 发明授权

US5080187A Driving power transmission system for vehicle 失效
标题翻译：用于车辆的动力传动系统
公开(公告)号：US5080187A
公开(公告)日：1992-01-14
申请号：US598749
申请日：1990-10-16
申请人： Hiroaki Asano , Kyosuke Haga
发明人： Hiroaki Asano , Kyosuke Haga
IPC分类号： B60K17/35 , F16D35/00 , F16D43/284 , F16D47/06
CPC分类号： F16D43/284 , B60K17/3505 , F16D35/00 , F16D47/06 , Y10T74/19679
摘要： A driving power transmission system for transmitting a driving power to front tires and rear tires, wherein a torque transmission device is disposed within a drive line for controlling transmissive torque transmitted to the tires. The torque transmission device is provided with a rotational housing to which a driving power from an engine is applied, a cylindrical shaft which is drivingly connected to the tires. The housing receives a clutch mechanism for transmitting a rotational torque from the housing to the cylindrical shaft, a piston located adjacent to the clutch mechanism and a pressure generating mechanism having an input rotational shaft for generating a pressure so as to actuate the clutch mechanism through the piston. The torque transmission device further provided with a differential speed amplifying mechanism connected to the housing and the cylindrical shaft for amplyifying a rotational speed difference therebetween in order to rotate the input rotational shaft of the pressure generating mechanism at an amplified speed. When the rotational speed difference occurs between the housing and the cylindrical shaft, the speed difference is amplified by the amplifying mechanism and then applied to the pressure generating mechanism. As a result, a large pressure is quickly generated and is applied to the clutch mechanism via the piston in order to actuate the clutch mechanism.

10. 发明授权

US4460016A Rotary servovalve 失效
标题翻译：旋转伺服阀
公开(公告)号：US4460016A
公开(公告)日：1984-07-17
申请号：US359860
申请日：1982-03-19
申请人： Kyosuke Haga , Tsuneo Tanaka
发明人： Kyosuke Haga , Tsuneo Tanaka
IPC分类号： B62D5/083 , F15B13/16
CPC分类号： B62D5/083 , Y10T137/86662
摘要： A rotary servovalve for a power steering system is provided wherein a plurality of orifices are established by a plurality of axial extending lands formed on the internal surface of a valve sleeve and the circumferential surface of a rotor received therein. As the rotor rotates relative to the sleeves, the orifices control the pressure and the flow of fluid supplied from a pump to a power cylinder of the steering system and from the power cylinder to a reservoir. Each of the lands on the rotor is formed at each of its circumferential edges with a chamfer which has a third slope for preventing the generation of cavitation and hissing noise, in addition to first and second slopes for offering an optimum steering feeling to a vehicular driver.
摘要翻译：提供了一种用于动力转向系统的旋转伺服阀，其中通过形成在阀套的内表面上的多个轴向延伸的平台和其中容纳的转子的圆周表面来建立多个孔。当转子相对于套管旋转时，孔口控制从泵向转向系统的动力缸和从动力缸向贮存器供应的流体的压力和流量。转子上的每个边缘都形成在其每个周边边缘处，其具有倒角，除了用于向车辆驾驶员提供最佳转向感的第一和第二斜面之外，该倒角具有用于防止产生气蚀和嘶嘶声的第三斜率。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式