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。