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公开(公告)号：US06272858B1
公开(公告)日：2001-08-14
申请号：US09396421
申请日：1999-09-15
申请人： Eiichi Takano , Takato Ogiwara , Hiromi Ando
发明人： Eiichi Takano , Takato Ogiwara , Hiromi Ando
IPC分类号： F15B708
CPC分类号： F16D25/088 , B60T11/20 , B60T11/232 , B60T11/236
摘要： A master cylinder includes a cylinder, a piston slidably provided in the cylinder, an annular cup seal held on an inner circumferential surface of the cylinder, and a relief port formed in the piston. The piston and the cylinder define a pressure chamber for generating fluid pressure in front of the piston, and the cylinder and an outer circumferential surface of the piston define a fluid supply chamber which communicates with a reservoir. The cup seal is adapted to slide against the outer circumferential surface of the piston to separate the fluid supply chamber from the pressure chamber. The relief port provides communication between the pressure chamber and the fluid supply chamber. A control taper surface is formed on the outer circumferential surface of the piston rearwardly from the relief port. The control taper surface is tapered toward the front of the piston and is capable of abutting against an inner circumferential surface of the cup seal.
摘要翻译： 主缸包括缸体，可滑动地设置在缸体中的活塞，保持在缸体的内圆周表面上的环形杯密封件和形成在活塞中的卸载口。 活塞和气缸限定了用于在活塞前方产生流体压力的压力室，并且气缸和活塞的外圆周表面限定了与储存器连通的流体供应室。 杯形密封件适于相对于活塞的外周表面滑动以将流体供应室与压力室分离。 释放口提供压力室和流体供应室之间的连通。 控制锥面形成在活塞的外周面上，从减压口向后方。 控制锥形表面朝向活塞的前部逐渐变细，并且能够抵靠杯形密封件的内周表面。
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公开(公告)号：US06578360B2
公开(公告)日：2003-06-17
申请号：US09984794
申请日：2001-10-31
IPC分类号： B60T1120
CPC分类号： B60T11/20
摘要： A master cylinder including a cylinder having one end open to the outside. A secondary piston guide ring, a sleeve and a primary piston guide ring are adapted to be fitted in this order into the cylinder from the one open end. A piston is slidably fitted in an axial direction of the cylinder, into each of the secondary piston guide ring, the sleeve and the primary piston guide ring. A retainer is provided at the open end of the cylinder, and adapted to abut against the primary piston guide ring so as to prevent escape of the primary piston guide ring from the cylinder. An elastic member is provided between a rearward end portion of the sleeve and a forward end portion of the primary piston guide ring.
摘要翻译： 主缸，其具有一端向外敞开的气缸。 次级活塞导向环，套筒和主活塞导向环适于从一个开口端顺次安装到气缸中。 活塞在气缸的轴向方向可滑动地装配到每个次级活塞导向环，套筒和主活塞导向环中。 保持器设置在气缸的开口端处，并且适于抵靠主活塞导向环，以防止主活塞导向环从气缸逸出。 弹性构件设置在套筒的后端部和主活塞导向环的前端部之间。
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公开(公告)号：USRE40573E1
公开(公告)日：2008-11-18
申请号：US11368335
申请日：2006-03-02
申请人： Takato Ogiwara , Kenji Sano , Naganori Koshimizu , Hiromi Ando
发明人： Takato Ogiwara , Kenji Sano , Naganori Koshimizu , Hiromi Ando
IPC分类号： B60T11/224
CPC分类号： B60T11/224 , B60T11/26
摘要： A master cylinder of the invention supplies a brake fluid from a large diameter pressurizing chamber 56 to a small diameter hydraulic chamber 49 by opening a reverse flow checking opening and closing portion 61 by sliding movement of a stepped piston 16 forwardly, that is, fast fill and when the hydraulic pressure of the large diameter pressurizing chamber 56 rises, a control valve 86 escapes the hydraulic pressure of the large diameter pressurizing chamber 56 to a reservoir 12 to gradually lower in accordance with rise of the hydraulic pressure of the small diameter hydraulic chamber 49, thereby capable of reducing a strange feeling in a pedal feeling caused by sudden pressure release of the large diameter pressurizing chamber 56.
摘要翻译： 本发明的主缸通过向前倾斜阶梯式活塞16的滑动打开反向流动检查开闭部61来将制动液从大直径加压室56供给到小直径液压室49，即快速填充 并且当大直径加压室56的液压上升时，控制阀86将大直径加压室56的液压从储存器12排出，以便随着小直径液压室的液压升高逐渐降低 从而能够减小由大直径加压室56的突然的压力释放引起的踏板感觉的奇怪的感觉。
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公开(公告)号：US06698202B2
公开(公告)日：2004-03-02
申请号：US10084261
申请日：2002-02-26
申请人： Takato Ogiwara , Kenji Sano , Naganori Koshimizu , Hiromi Ando
发明人： Takato Ogiwara , Kenji Sano , Naganori Koshimizu , Hiromi Ando
IPC分类号： B60T11224
CPC分类号： B60T11/224 , B60T11/26
摘要： A master cylinder of the invention supplies a brake fluid from a large diameter pressurizing chamber 56 to a small diameter hydraulic chamber 49 by opening a reverse flow checking opening and closing portion 61 by sliding movement of a stepped piston 16 forwardly, that is, fast fill and when the hydraulic pressure of the large diameter pressurizing chamber 56 rises, a control valve 86 escapes the hydraulic pressure of the large diameter pressurizing chamber 56 to a reservoir 12 to gradually lower in accordance with rise of the hydraulic pressure of the small diameter hydraulic chamber 49, thereby capable of reducing a strange feeling in a pedal feeling caused by sudden pressure release of the large diameter pressuring chamber 56.
摘要翻译： 本发明的主缸通过向前倾斜阶梯式活塞16的滑动打开反向流动检查开闭部61来将制动液从大直径加压室56供给到小直径液压室49，即快速填充 并且当大直径加压室56的液压上升时，控制阀86将大直径加压室56的液压从储存器12排出，以便随着小直径液压室的液压升高逐渐降低 从而能够减小由大直径加压室56的突然的压力释放引起的踏板感觉的奇怪的感觉。
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5.发明授权公开(公告)号：US07694517B2
公开(公告)日：2010-04-13
申请号：US11892884
申请日：2007-08-28
CPC分类号： F15B7/08 , B60T11/22 , B60T17/04 , Y10T29/49236 , Y10T137/7837
摘要： A master cylinder designed to facilitate an operation of assembling and adjusting a check valve is provided. A supply passage for supplying operating fluid from a reservoir 2 to a pressure chamber 6 is formed in a cylinder body 3 connected to the reservoir 2. A bypass 37 for bypassing the supply passage connecting the reservoir 2 and the pressure chamber 6 is formed and provided with a check valve system 34 adapted to open when a pressure in the pressure chamber 6 is lower than that in the reservoir 2. A valve case 38 and a covering member 32 constitute a cartridge 39, which accommodates a valve body 41 and an urging spring 42, so as to form a check valve system 34. The cartridge 39 is placed in a valve chamber 33 of the bypass 37.
摘要翻译： 提供了设计用于促进组装和调节止回阀的操作的主缸。 用于将工作流体从储存器2供给到压力室6的供给通道形成在连接到储存器2的缸体3中。形成用于旁路连接储存器2和压力室6的供给通道的旁路37， 具有适于当压力室6中的压力低于储存器2中的压力时打开的止回阀系统34.阀壳体38和覆盖部件32构成盒体39，其容纳阀体41和推压弹簧 42，以形成止回阀系统34.盒39被放置在旁路37的阀室33中。
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公开(公告)号：US08286427B2
公开(公告)日：2012-10-16
申请号：US12219673
申请日：2008-07-25
申请人： Takato Ogiwara , Takayuki Kinoshita
发明人： Takato Ogiwara , Takayuki Kinoshita
IPC分类号： F15B7/08
CPC分类号： B60T11/232
摘要： In a master cylinder, a supply passage for supplying operating liquid from a reservoir (2) to a pressure chamber (6) is provided in a cylinder body (3) coupled with the reservoir. A bypass passage (37) for bypassing the supply passage and connecting the reservoir and the pressure chamber is further provided, and a check valve (34) adapted to open when a pressure in the pressure chamber is lower than that in the reservoir is disposed in the bypass passage. A valve case (38) containing a valve body (41) of the check valve includes a valve seat (40) and a cylindrical wall (45) for slidably guiding the valve body which are integrally formed as a single member.
摘要翻译： 在主缸中，在与储存器联接的缸体（3）中设置有用于将操作液体从储存器（2）供应到压力室（6）的供给通道。 还设置有用于绕过供给通道并连接储液器和压力室的旁路通道（37），并且当压力室中的压力低于储液器中的压力时，设置有止回阀（34） 旁路通道。 包含止回阀的阀体（41）的阀壳（38）包括阀座（40）和用于滑动地引导阀体的圆柱形壁（45），该阀体一体地形成为单个构件。
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7.发明申请公开(公告)号：US20080173015A1
公开(公告)日：2008-07-24
申请号：US11892884
申请日：2007-08-28
CPC分类号： F15B7/08 , B60T11/22 , B60T17/04 , Y10T29/49236 , Y10T137/7837
摘要： A master cylinder designed to facilitate an operation of assembling and adjusting a check valve is provided. A supply passage for supplying operating fluid from a reservoir 2 to a pressure chamber 6 is formed in a cylinder body 3 connected to the reservoir 2. A bypass 37 for bypassing the supply passage connecting the reservoir 2 and the pressure chamber 6 is formed and provided with a check valve system 34 adapted to open when a pressure in the pressure chamber 6 is lower than that in the reservoir 2. A valve case 38 and a covering member 32 constitute a cartridge 39, which accommodates a valve body 41 and an urging spring 42, so as to form a check valve system 34. The cartridge 39 is placed in a valve chamber 33 of the bypass 37.
摘要翻译： 提供了设计用于促进组装和调节止回阀的操作的主缸。 用于将工作流体从储存器2供应到压力室6的供给通道形成在连接到储存器2的缸体3中。 形成用于旁路连接储存器2和压力室6的供给通道的旁路37，并且设置有当压力室6中的压力低于储存器2中的压力时打开的止回阀系统34。 阀壳38和盖构件32构成容纳阀体41和推压弹簧42的盒39，以形成止回阀系统34。 盒39被放置在旁路37的阀室33中。
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公开(公告)号：US08578711B2
公开(公告)日：2013-11-12
申请号：US12870330
申请日：2010-08-27
申请人： Ryoichi Yagi , Naganori Koshimizu , Takato Ogiwara
发明人： Ryoichi Yagi , Naganori Koshimizu , Takato Ogiwara
IPC分类号： F15B7/08
CPC分类号： B60T11/232
摘要： A master cylinder includes a cylinder body which an operating fluid is introduced from a reservoir, a piston which is slidably fitted in the cylinder body and defines a pressure chamber inside the cylinder body, a supply pathway which is formed in the cylinder body and supplies the operating fluid from the reservoir to the pressure chamber, a bypass pathway which bypasses the supply pathway and allows the reservoir to communicate with the pressure chamber, and a check valve which is installed in the bypass pathway and opens a valve when the pressure inside the pressure chamber is lower than the pressure of the reservoir.
摘要翻译： 主缸包括：缸体，其工作流体从储存器引入;活塞，其可滑动地装配在缸体中并且限定在缸体内的压力室;供应通道，其形成在缸体中并供应 工作流体从储存器到压力室，旁路通路绕过供应通道并允许储存器与压力室连通;以及止回阀，其安装在旁路通路中并且当压力在压力内时打开阀门 室低于储层的压力。
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公开(公告)号：US07516617B2
公开(公告)日：2009-04-14
申请号：US11604843
申请日：2006-11-28
IPC分类号： B60T11/20
CPC分类号： B60T11/236 , B60T11/20
摘要： A master cylinder including a cylinder body having a tubular shape with a closed end; and a piston having one side slidably inserted into the cylinder body and another side that projects from the cylinder body. The piston and the cylinder body define a pressure chamber for generating hydraulic pressure. The master cylinder also includes a protecting member for covering the side of the piston projects from the cylinder body. The protecting member is adapted to extend and contract, and limit backward movement of the piston.
摘要翻译： 主缸，包括具有封闭端的管状的缸体; 以及活塞，其一侧可滑动地插入到气缸体中，另一侧从气缸体突出。 活塞和缸体限定用于产生液压的压力室。 主缸还包括用于覆盖活塞侧面的保护构件从缸体突出。 保护构件适于延伸和收缩并限制活塞的向后运动。
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公开(公告)号：US20070119167A1
公开(公告)日：2007-05-31
申请号：US11604843
申请日：2006-11-28
IPC分类号： B60T11/20
CPC分类号： B60T11/236 , B60T11/20
摘要： A master cylinder comprising: a cylinder body having a tubular shape with a closed end; a piston having one side thereof slidably inserted into the cylinder body and another side thereof projecting from the cylinder body, the piston and the cylinder body defining a pressure chamber for generating hydraulic pressure; and a protecting member for covering said another side of the piston projecting from the cylinder body, the protecting member being adapted to extend and contract, and limit a backward movement of the piston.
摘要翻译： 主缸，包括：具有封闭端的管状的缸体; 活塞，其一侧可滑动地插入缸体中，另一侧从缸体突出，活塞和缸体限定用于产生液压的压力室; 以及用于覆盖从所述缸体突出的所述活塞的另一侧的保护构件，所述保护构件适于延伸和收缩并且限制所述活塞的向后运动。
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