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    • 12. 发明申请
    • Hydrostatic continuously variable transmission
    • 静液压无级变速器
    • US20050198952A1
    • 2005-09-15
    • US11077954
    • 2005-03-11
    • Yoshihiro YoshidaKazuhiko NakamuraKenji SakakibaraYoshihisa KannoToshimasa Mitsubori
    • Yoshihiro YoshidaKazuhiko NakamuraKenji SakakibaraYoshihisa KannoToshimasa Mitsubori
    • F16H39/14F16D39/00B60K41/12
    • F16H39/14
    • In a hydrostatic continuously variable transmission, a hydraulic pump and a hydraulic motor are connected through a hydraulic closed circuit and the capacity of the hydraulic motor is varied to vary the speed continuously. The transmission has a valve spool in a spool hole made in a transmission output shaft which rotatably holds the hydraulic pump and hydraulic motor; and the transmission output shaft incorporates outer branch oil paths which are connected with an outer passage and open to the spool hole, and an inner branch oil path which is connected with an inner passage and open to the spool hole. A right groove on the outer periphery of the valve spool enables the valve spool to move between a clutch release position in which the outer branch oil paths and the inner branch oil path are connected and a clutch engagement position in which a central land of the valve spool at least covers a high pressure clutch port; and the right groove is connected to the outside through a discharge oil path with an orifice.
    • 在液压无级变速器中,液压泵和液压马达通过液压闭合回路连接,并且液压马达的容量变化以连续地改变速度。 变速器具有在变速器输出轴上制成的滑阀孔中的阀芯,其可旋转地保持液压泵和液压马达; 变速器输出轴结合外部分支油路,其与外部通道连接并且与卷筒孔相通,以及内部分支油路,其与内部通道连接并且与卷轴孔相通。 在阀芯的外周上的右凹槽使得阀芯能够在外分支油路和内分支油路连接的离合器释放位置和离合器接合位置之间移动,在该离合器接合位置中阀的中心区域 阀芯至少覆盖高压离合器端口; 并且右槽通过具有孔口的排出油路连接到外部。
    • 13. 发明申请
    • Static hydraulic continuously variable transmission
    • 静液压无级变速器
    • US20060174616A1
    • 2006-08-10
    • US11349166
    • 2006-02-08
    • Yoshihiro YoshidaKazuhiko NakamuraHideo Okuzaki
    • Yoshihiro YoshidaKazuhiko NakamuraHideo Okuzaki
    • F16D39/00
    • F16D31/02F16H39/14
    • To provide a short connection hydraulic path structure with a sufficiently large diameter to adequately lower the pressure in a high-pressure hydraulic path while the clutch is off, in a static hydraulic continuously variable transmission for sliding a clutch valve installed within the transmission shaft, to change the power being transmitted and shorten the high-pressure hydraulic path and low-pressure hydraulic path. A high-pressure fluid path is provided for sending hydraulic fluid from the hydraulic pump side to the hydraulic motor side with a low-pressure fluid path for sending hydraulic fluid from the hydraulic motor side to the hydraulic pump side. A hydraulic circuit includes a switching valve for switching the plungers to the high-pressure path or the low-pressure path as a dual structure within a valve body between the hydraulic pump made from multiple plungers, and a hydraulic motor made from multiple motors.
    • 为了提供具有足够大直径的短连接液压路径结构,以在离合器关闭时充分降低高压液压路径中的压力,在用于使安装在传动轴内的离合器阀滑动的静态液压无级变速器中, 改变被传输的功率,缩短高压液压路径和低压液压路径。 提供了一种高压流体路径,用于将液压流体从液压泵侧输送到液压马达侧,并具有用于将液压流体从液压马达侧输送到液压泵侧的低压流体路径。 液压回路包括切换阀,用于在由多个柱塞制成的液压泵之间的阀体内的作为双重结构的高压路径或低压路径上切换柱塞,以及由多个马达制成的液压马达。
    • 14. 发明授权
    • Static hydraulic continuously variable transmission
    • 静液压无级变速器
    • US07380399B2
    • 2008-06-03
    • US11349166
    • 2006-02-08
    • Yoshihiro YoshidaKazuhiko NakamuraHideo Okuzaki
    • Yoshihiro YoshidaKazuhiko NakamuraHideo Okuzaki
    • F16D39/00
    • F16D31/02F16H39/14
    • To provide a short connection hydraulic path structure with a sufficiently large diameter to adequately lower the pressure in a high-pressure hydraulic path while the clutch is off, in a static hydraulic continuously variable transmission for sliding a clutch valve installed within the transmission shaft, to change the power being transmitted and shorten the high-pressure hydraulic path and low-pressure hydraulic path. A high-pressure fluid path is provided for sending hydraulic fluid from the hydraulic pump side to the hydraulic motor side with a low-pressure fluid path for sending hydraulic fluid from the hydraulic motor side to the hydraulic pump side. A hydraulic circuit includes a switching valve for switching the plungers to the high-pressure path or the low-pressure path as a dual structure within a valve body between the hydraulic pump made from multiple plungers, and a hydraulic motor made from multiple motors.
    • 为了提供具有足够大直径的短连接液压路径结构,以在离合器关闭时充分降低高压液压路径中的压力,在用于使安装在传动轴内的离合器阀滑动的静态液压无级变速器中, 改变被传输的功率,缩短高压液压路径和低压液压路径。 提供了一种高压流体路径,用于将液压流体从液压泵侧输送到液压马达侧,并具有用于将液压流体从液压马达侧输送到液压泵侧的低压流体路径。 液压回路包括切换阀,用于在由多个柱塞制成的液压泵之间的阀体内的作为双重结构的高压路径或低压路径上切换柱塞,以及由多个马达制成的液压马达。
    • 16. 发明申请
    • ROTATION ASSISTANCE MECHANISM AND ROTATING POWER MECHANISM EQUIPPED WITH SAME
    • 旋转辅助机构和旋转功率机构
    • US20150222149A1
    • 2015-08-06
    • US14424325
    • 2013-08-23
    • Kazuhiko Nakamura
    • Kazuhiko Nakamura
    • H02K1/06
    • H02K1/06F03G7/10H02K53/00Y10S74/09
    • A rotation assistance mechanism equipped with an attraction unit having a pair of magnetic bodies for which the opposite poles of the bodies are arranged facing one another. A magnetic body driving unit changes the distance between the pair of magnetic bodies with a prescribed period by means of the rotation of a rear wheel. A shielding unit has a pair of magnetic surfaces, the poles of which are the same as the respective opposing surfaces of the pair of magnetic bodies. A shield-driving unit that, in conjunction with the prescribed period, propels the shielding unit into the interval between the pair of magnetic bodies when the distance between the pair of magnetic bodies is reduced, and retracts the shielding unit from the interval between the pair of magnetic bodies when the distance between the pair of magnetic bodies is increased.
    • 一种旋转辅助机构,其配备有具有一对磁体的吸引单元,所述一对磁体的主体的相对极彼此相对布置。 磁体驱动单元通过后轮的旋转以规定的时间间隔改变一对磁体之间的距离。 屏蔽单元具有一对磁性表面,其磁极与该对磁体的相应的相对表面相同。 一种屏蔽驱动单元,当所述一对磁体之间的距离减小时,与所述规定期间一起,将所述屏蔽单元推进到所述一对磁体之间的间隔中,并且将所述屏蔽单元从所述一对磁体之间的间隔缩回 当一对磁体之间的距离增加时磁体的位置。