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公开(公告)号：US5046315A
公开(公告)日：1991-09-10
申请号：US437435
申请日：1989-11-16
摘要： A master cylinder includes a cylinder defining a cylinder bore therein with one end of the cylinder being open, a sleeve fitted into the cylinder bore, a piston slidably disposed in the sleeve, and a stopper mounted on the one end of the cylinder for abutting against the sleeve to prevent the sleeve from coming off the cylinder. The sleeve includes at least two sleeve members fitted into the cylinder bore in serial disposition from the inner end to the open end of the cylinder bore. A cup seal is disposed between two adjacent sleeve members of the aforementioned at least two sleeve members. The master cylinder further includes a resilient member for forcing one inner sleeve member of the two adjacent sleeve members onto the other sleeve member of the two adjacent sleeve members, thereby forcing the other sleeve member toward the stopper.
摘要翻译： 主缸包括在其中限定气缸孔的气缸，其中气缸的一端是开口的，套筒装配到气缸孔中，可滑动地设置在套筒中的活塞和安装在气缸的一端上的止动件，用于抵靠 套筒可防止套筒脱落。 套筒包括至少两个套筒构件，其从气缸孔的内端到开口端以串联方式装配到气缸孔中。 杯密封件设置在上述至少两个套筒构件的两个相邻套筒构件之间。 主缸还包括用于将两个相邻套筒构件的一个内套筒构件推压到两个相邻套筒构件的另一套筒构件上的弹性构件，从而迫使另一个套筒构件朝向止挡件。
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公开(公告)号：US4945729A
公开(公告)日：1990-08-07
申请号：US361867
申请日：1989-06-06
IPC分类号： B60T11/20 , B60T13/565
CPC分类号： B60T13/565 , B60T11/20
摘要： A master cylinder in which a sleeve is provided inside a cylinder main body to define a first pressure chamber in cooperation with primary and secondary pistons. A plurality of through-holes adapted to communicate with an outlet port are disposed in the sleeve in such a manner as to be longitudinally spaced away from each other. positioning means is provided between the sleeve and the cylinder main body for positioning the sleeve with respect to the circumferential direction relative to the cylinder main body. The sleeve is positioned relative to the cylinder main body in such a manner that at least one of the plurality of through-holes adapted to establish communication between the outlet port and the first pressure chamber when the pistons are at their rearmost positions is located to face the top portion of the circumferential wall of the cylinder main body.
摘要翻译： 主缸，其中套筒设置在缸主体内部，以与主活塞和次活塞协作地限定第一压力室。 多个适于与出口连通的通孔以这样的方式设置在套筒中，以便彼此纵向间隔开。 定位装置设置在套筒和缸主体之间，用于相对于圆筒主体相对于圆周方向定位套筒。 套筒相对于圆筒主体定位成使得当活塞处于其最后面的位置时，适于建立出口和第一压力室之间的连通的多个通孔中的至少一个通孔位于面 圆筒主体的圆周壁的顶部。
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公开(公告)号：US20080223034A1
公开(公告)日：2008-09-18
申请号：US12073977
申请日：2008-03-12
申请人： Tomonori Mouri , Naganori Koshimizu
发明人： Tomonori Mouri , Naganori Koshimizu
IPC分类号： B60T11/28
CPC分类号： B60T11/224 , B60T11/28
摘要： Disclosed is a master cylinder comprising a stepped cylinder having a large diameter cylinder portion and a small diameter cylinder portion, a stepped piston inserted into the stepped cylinder, a reverse-flow-checking opening and closing portion for partitioning the inside of the stepped cylinder into a large diameter pressurizing chamber and a small diameter hydraulic chamber, and a control valve device in which a control valve body releases a hydraulic pressure in the large diameter pressurizing chamber to a reservoir side such that the hydraulic pressure in the large diameter pressurizing chamber is gradually reduced in accordance with a rise in a hydraulic pressure in the small hydraulic chamber, the master cylinder characterized in further comprising a check valve device comprising a check valve chamber communicating with an relief passage, which releases a hydraulic pressure in the large diameter pressurizing chamber to the reservoir via the control valve device, and with a small diameter hydraulic chamber, respectively, and a check valve body accommodated in the check valve chamber for permitting flow of a brake fluid from the relief passage to the small hydraulic chamber, and for preventing flow of the brake fluid in a reverse direction.
摘要翻译： 公开了一种主缸，其包括具有大直径缸部和小直径缸部的阶梯缸，插入阶梯缸中的阶梯式活塞，用于将阶梯缸的内部分隔成的逆流检查开闭部 大直径加压室和小直径液压室;以及控制阀装置，其中控制阀体将大直径加压室中的液压释放到储存侧，使得大直径加压室中的液压逐渐 所述主缸还包括止回阀装置，所述止回阀装置包括与释放通道连通的止回阀室，所述止回阀室将所述大直径加压室中的液压释放到 油箱通过控制阀装置，并具有小型 以及容纳在止回阀室中的止回阀体，用于允许制动流体从释放通道流到小液压室，并且用于防止制动流体沿相反方向流动。
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4.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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5.发明申请公开(公告)号：US20080053086A1
公开(公告)日：2008-03-06
申请号：US11892750
申请日：2007-08-27
申请人： Tomonori Mouri , Naganori Koshimizu
发明人： Tomonori Mouri , Naganori Koshimizu
CPC分类号： B60T11/16 , B60T11/232 , F15B7/08 , F15B7/10 , Y10T29/4927
摘要： A master cylinder that can prevent impairment of a piston seal, and a method of producing the master cylinder are provided. A master cylinder has a circumferential groove (47) in which a piston seal is provided, the piston seal having an outer circumference which enables operating fluid to be supplied, and a communication groove (96) which opens into the circumferential groove (47) and extends from the circumferential groove (47) toward a bottom portion of a cylinder body (15) to connect a pressure chamber and the circumferential groove (47). The communication groove (96) is formed with its center made eccentric relative to the center of the circumferential groove (47). A chamfered portion (100) is formed over an entire extent of a corner portion formed by the circumferential groove (47) and the communication groove (96), along a circular path concentric with the communication groove (96).
摘要翻译： 提供可防止活塞密封件受损的主缸，以及制造主缸的方法。 主缸具有设置有活塞密封件的周向槽（47），活塞密封件具有能够供给工作流体的外周，以及向周向槽（47）开口的连通槽（96）， 从圆周槽（47）朝向缸体（15）的底部延伸，以连接压力室和周向槽（47）。 连通槽96形成为相对于周向槽47的中心偏心的形状。 沿着与连通槽（96）同心的圆形路径，在由周向槽（47）和连通槽（96）形成的角部的整个范围内形成倒角部（100）。
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公开(公告)号：US4444436A
公开(公告)日：1984-04-24
申请号：US316426
申请日：1981-10-29
申请人： Naganori Koshimizu
发明人： Naganori Koshimizu
CPC分类号： B60T11/34 , B60T8/1831 , B60T8/285
摘要： A hydraulic pressure control valve for use in a vehicle hydraulic braking system having first and second pressure circuits include a common valve housing, first and second pressure control mechanisms including respectively stepped pistons, valve mechanisms and inlet and outlet chambers, a spring force controlling pressure chamber normally connected to the inlet chamber of the first pressure control mechanism and transmitting the force of a spring to the pistons of the both mechanisms, and an inertia valve arranged in a passage connecting the inlet chamber of the first mechanism and the spring force controlling pressure chamber. The inertia valve closes when the deceleration of the braked vehicle exceeds a predetermined level as determined by the loading condition of the vehicle and the pressure in the inlet and outlet chambers in the respective pressure control mechanisms. Thereafter, the pistons move to close respective valve mechanisms and the pressure in respective outlet chambers increases at a rate smaller than the increase in the pressure in the inlet chambers.
摘要翻译： 一种用于具有第一和第二压力回路的车辆液压制动系统的液压控制阀，包括一个共同的阀壳体，第一和第二压力控制机构，分别包括阶梯式活塞，阀门机构和入口和出口腔室，弹簧力控制压力室 通常连接到第一压力控制机构的入口室并将弹簧的力传递到两个机构的活塞，以及布置在连接第一机构的入口室和弹簧力控制压力室的通道中的惯性阀 。 当制动车辆的减速度超过由车辆的装载状态和相应压力控制机构中的入口和出口室中的压力确定的预定水平时，惯性阀关闭。 此后，活塞移动以关闭相应的阀机构，并且相应出口室中的压力以比入口室中的压力增加的速率增加。
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公开(公告)号：US07841178B2
公开(公告)日：2010-11-30
申请号：US12073977
申请日：2008-03-12
申请人： Tomonori Mouri , Naganori Koshimizu
发明人： Tomonori Mouri , Naganori Koshimizu
IPC分类号： F15B7/04 , B60T11/228
CPC分类号： B60T11/224 , B60T11/28
摘要： A master cylinder comprising a large diameter pressurizing chamber and a small diameter hydraulic chamber, a control valve device in which a control valve body releases a hydraulic pressure in the large diameter pressurizing chamber to a reservoir side such that the hydraulic pressure in the large diameter pressurizing chamber is gradually reduced in accordance with a rise in a hydraulic pressure in the small hydraulic chamber, and a check valve device comprising a check valve chamber communicating with an relief passage, which releases a hydraulic pressure in the large diameter pressurizing chamber to the reservoir via the control valve device, and with a small diameter hydraulic chamber, respectively, and a check valve body accommodated in the check valve chamber for permitting flow of a brake fluid from the relief passage to the small hydraulic chamber, and for preventing flow of the brake fluid in a reverse direction.
摘要翻译： 包括大直径加压室和小直径液压室的主缸，控制阀装置，其中控制阀体将大直径加压室中的液压释放到储存器侧，使得大直径加压室中的液压 腔室随着小液压室中的液压的上升而逐渐减小，以及止回阀装置，其包括与释放通道连通的止回阀室，其将大直径加压室中的液压压力释放到储存器经由 控制阀装置和小直径液压室，以及容纳在止回阀室中的止回阀体，用于允许制动流体从释放通道流到小液压室，并且用于防止制动器的流动 流体在相反的方向。
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8.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：US20080264248A1
公开(公告)日：2008-10-30
申请号：US12078151
申请日：2008-03-27
申请人： Hiroki Okada , Naganori Koshimizu
发明人： Hiroki Okada , Naganori Koshimizu
IPC分类号： B60T11/236 , F15B7/00 , B23P15/00
CPC分类号： F15B7/00 , B60T11/236 , Y10T29/49236
摘要： An object of the present invention is to provide a master cylinder capable of controlling an increase in an intruding amount of a cup seal while relieving a stress concentration therein to thereby prevent the cup seal from being damaged. Provided is a master cylinder in which a piston is moved in slidable contact with an inner circumference of a cup seal held in a cylinder main body so as to pressurize a brake fluid in a pressure chamber formed of the piston and the cylinder main body, wherein an annular wall configured integrally with the cylinder main body is provided behind the cup seal. Further, a chamfered portion having a curved shape in a cross-section taken along a diameter direction of the cylinder main body is provided between the annular wall and a cylinder wall to which the piston is facing. One end of the chamfered portion is formed continuously so that a tangent thereto is in line with the annular wall, and the other end of the chamfered portion is formed to constitute a flexed portion in combination with the cylinder wall.
摘要翻译： 本发明的目的是提供一种主缸，能够控制杯形密封件的侵入量的增加，同时减轻其中的应力集中，从而防止杯密封件损坏。 提供一种主缸，其中活塞与保持在气缸主体中的杯形密封件的内周滑动接触，以便对由活塞和气缸主体形成的压力室中的制动流体加压，其中 在杯密封件的后面设置有与气缸主体一体配置的环形壁。 此外，在环形壁与活塞面对的气缸壁之间，设置沿着圆筒主体的直径方向截取的具有弯曲形状的倒角部。 倒角部分的一端连续地形成，使其切线与环形壁一致，并且倒角部分的另一端形成为与气缸壁组合的弯曲部分。
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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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