公开(公告)号：US4671167A

公开(公告)日：1987-06-09

申请号：US713029

申请日：1985-03-18

申请人： Mitsuhiro Endo ,  Hiromi Ando ,  Yukou Ono

发明人： Mitsuhiro Endo ,  Hiromi Ando ,  Yukou Ono

IPC分类号： B60T8/18 ,  B60T13/52 ,  B60T13/575 ,  B60T13/577 ,  F15B9/10

CPC分类号： B60T13/577 ,  B60T13/52 ,  B60T13/575 ,  B60T8/1812

摘要： A pneumatic booster including a housing, a power piston partitioning the interior of the housing into a front chamber and a rear chamber, with the front chamber being connected permanently to a source of a first reference pressure, the rear chamber being selectively communicated with the front chamber and a source of second reference pressure which is higher than the first reference pressure through a valve mechanism, an output shaft receiving the output force from the power piston, and an input shaft receiving an input force for actuating said valve mechanism and receiving a reaction force of the output force. There are provided a device between the output shaft and the power piston for changing the reaction force with respect to the output force on the output shaft, a mechanism for rotating the output shaft around the axis thereof, and a device for preventing the rotation of the power piston relative to the housing at least at the non-actuated condition of the pneumatic booster.

摘要翻译： 一种气动升压器，包括壳体，将壳体内部分隔成前室和后室的动力活塞，其中前室永久地连接到第一参考压力源，后室选择性地与前部连通 第二基准压力源通过阀机构高于第一参考压力，输出轴接收来自动力活塞的输出力，以及输入轴，其接收用于致动所述阀机构并接收反作用力的输入力 输出力的力。 在输出轴和动力活塞之间设置有用于相对于输出轴上的输出力改变反作用力的装置，用于使输出轴围绕其轴线旋转的机构，以及用于防止旋转的装置 至少在气动助力器的非致动状态下相对于壳体的动力活塞。

公开(公告)号：US4813336A

公开(公告)日：1989-03-21

申请号：US25279

申请日：1987-03-12

申请人： Mitsuhiro Endo ,  Hiromi Ando ,  Yukou Ono

发明人： Mitsuhiro Endo ,  Hiromi Ando ,  Yukou Ono

IPC分类号： B60T8/18 ,  B60T13/52 ,  B60T13/575 ,  B60T13/577 ,  F15B9/10

CPC分类号： B60T13/577 ,  B60T13/52 ,  B60T13/575 ,  B60T8/1812

摘要： A pneumatic booster including a housing, a power piston partitioning the interior of the housing into a front chamber and a rear chamber, with the front chamber being connected permanently to a source of a first reference pressure, the rear chamber being selectively communicated with the front chamber and a source of second reference pressure which is higher than the first reference pressure through a valve mechanism, an output shaft receiving the output force from the power piston, and an input shaft receiving an input force for actuating said valve mechanism and receiving a reaction force of the output force. There are provided a device between the output shaft and the power piston for changing the reaction force with respect to the output force on the output shaft, a mechanism for rotating the output shaft around the axis thereof, and a device for preventing the rotation of the power piston relative to the housing at least at the non-actuated condition of the pneumatic booster.

公开(公告)号：US4690034A

公开(公告)日：1987-09-01

申请号：US713030

申请日：1985-03-18

申请人： Hiromi Ando ,  Mitsuhiro Endo ,  Yukou Ono

发明人： Hiromi Ando ,  Mitsuhiro Endo ,  Yukou Ono

IPC分类号： B60T13/573 ,  B60T13/575 ,  F15B9/10

CPC分类号： B60T13/575

摘要： A pneumatic booster of the type including a housing, a power piston partitioning the interior of the housing into a constant pressure front chamber and a variable pressure rear chamber, a return spring disposed in the front chamber and biasing the power piston rearwards, a reaction disc mounted on the power piston, an output shaft disposed frontwards of the reaction disc, an input shaft disposed rearwards of the reaction disc, and a valve mechanism associated with the input shaft and controlling the pressure in the rear chamber. A lever is mounted on the front surface of the power piston with radially outer end thereof being biasing against the front surface of the power piston by the return spring and the radially inner end thereof being engageable with the output shaft to transmit at least a part of the output force of the booster from the power piston to the output shaft.

摘要翻译： 一种气动助力器，其类型包括壳体，将壳体内部分隔成恒压前室和可变压力后室的动力活塞，设置在前室中并将动力活塞向后偏置的复位弹簧，反作用盘 安装在动力活塞上，输出轴设置在反作用盘的前方，设置在反作用盘的后方的输入轴以及与输入轴相关联并控制后室中的压力的​​阀机构。 杠杆安装在动力活塞的前表面上，其径向外端通过复位弹簧偏置在动力活塞的前表面上，并且其径向内端可与输出轴接合，以将至少一部分 助力器从动力活塞到输出轴的输出力。

公开(公告)号：US5553530A

公开(公告)日：1996-09-10

申请号：US447049

申请日：1995-05-22

申请人： Mitsuhiro Endo ,  Kiyoshi Shirahata ,  Hiromi Ando

发明人： Mitsuhiro Endo ,  Kiyoshi Shirahata ,  Hiromi Ando

IPC分类号： B60T13/52 ,  B60T13/56 ,  B60T13/57

CPC分类号： B60T13/57

摘要： A plunger moved with an input shaft is movably fitted in an axial bore of a valve body made of resin, and a valve mechanism selectively establishes and cuts off communication in a negative pressure passage and an atmosphere passage formed in the valve body according to the movement of the plunger. Also, a pair of radial holes formed to have a circular cross section are provided in the valve body by drilling work, and a plate type stop key formed in a fork shape having two claw branches is mounted by loosely inserting the branches in the radial holes. The stop key limits a movement range of the plunger. Also, a guide portion is formed on an outer circumference of the valve body to guide side surfaces of the stop key. The movement of the stop key is restricted by the guide portion and a step formed in the axial bore of the valve body. Therefore, a smooth operation of the pneumatic booster can be guaranteed.

摘要翻译： 用输入轴移动的柱塞可移动地装配在由树脂制成的阀体的轴向孔中，并且阀机构根据运动选择性地建立和切断在负压通道和形成在阀体中的气氛通道中的连通 的柱塞。 另外，通过钻孔工作在阀体上设置一对形成为圆形横截面的径向孔，并且通过将分支松动地插入到径向孔中来安装形成为具有两个爪分支的叉状的板式止动键 。 停止键限制柱塞的移动范围。 而且，引导部分形成在阀体的外周上，以引导停止键的侧表面。 止动键的移动受到引导部分的限制，并且形成在阀体的轴向孔中的台阶。 因此，可以保证气动助力器的平稳运行。

公开(公告)号：US5884548A

公开(公告)日：1999-03-23

申请号：US831143

申请日：1997-04-01

申请人： Hiromi Ando ,  Kiyoshi Shirahata ,  Mitsuhiro Endo ,  Atsuya Koshu

发明人： Hiromi Ando ,  Kiyoshi Shirahata ,  Mitsuhiro Endo ,  Atsuya Koshu

IPC分类号： B60T8/32 ,  B60T13/563 ,  F15B9/10

CPC分类号： B60T13/563 ,  B60T8/3275

摘要： A brake booster includes a housing, a partition adapted to divide the interior of the housing into two chambers, and two diaphragms adapted to divide the two chambers into constant and variable pressure chambers. A control valve includes a valve body carried by the diaphragms, and a plunger slidably received in the valve body. The control valve is operatively connected to the variable pressure chambers to develop a pressure differential across the diaphragms to cause the diaphragms to move in response to actuation of an input rod. A reaction disk is disposed between an output rod and the valve body to transmit the reaction of movement of the output rod to the input rod. An adjusting mechanism is disposed between the plunger and the reaction disk and compressible so as to develop a greater degree of pressure differential when a force applied by the input rod exceeds a predetermined level. The reaction disk is caused to make contact with the contact disk and held out of contact with the spring and the plunger when the plunger is actuated.

摘要翻译： 制动助力器包括壳体，适于将壳体的内部分成两个腔室的隔板以及适于将两个腔室分成恒定和可变压力腔室的两个隔膜。 控制阀包括由隔膜承载的阀体和可滑动地容纳在阀体中的柱塞。 控制阀可操作地连接到可变压力室，以跨越隔膜形成压力差，以响应于输入杆的致动而使隔膜移动。 反作用盘设置在输出杆和阀体之间，以将输出杆的运动反应传递到输入杆。 调节机构设置在柱塞和反作用盘之间并且可压缩，以便当由输入杆施加的力超过预定水平时产生更大程度的压力差。 当活塞被致动时，使反作用盘与接触盘接触并与弹簧和柱塞保持不接触。

公开(公告)号：US5743167A

公开(公告)日：1998-04-28

申请号：US715894

申请日：1996-09-19

申请人： Shuzo Watanabe ,  Mitsuhiro Endo ,  Hiromi Ando

发明人： Shuzo Watanabe ,  Mitsuhiro Endo ,  Hiromi Ando

IPC分类号： B60T13/563 ,  B60T13/567 ,  B60T13/569 ,  F01B19/00 ,  F15B11/00

CPC分类号： B60T13/567 ,  B60T13/563 ,  B60T13/569

摘要： A tandem pneumatic booster having a shell body, the inside of which is divided into two, front and rear, chambers by a center shell. Each chamber includes a negative pressure chamber and a working pressure chamber. A valve body is slidably fitted in the shell body and the center shell with seal members therebetween. The valve body is provided with an air passage for communication between the front and rear working pressure chambers. A valve mechanism is actuated in association with an input shaft to introduce atmospheric air into the front and rear working pressure chambers through the air passage so as to apply thrust to front and rear power pistons. The diaphragm of the front power piston has a bead on an inner periphery thereof. The valve body has a groove on an outer periphery thereof. A portion of the air passage which leads to the front working pressure chamber has a main passage portion extending axially in the valve body, and a bypass extending radially outward from the main passage portion. A communicating port leading to the front working pressure chamber extends axially from the bypass. The bypass opens into the groove, and the radially outer end of the bypass is sealed with the bead.

摘要翻译： 一种串联式气动助力器，其具有壳体，其壳体通过中心壳体分成两个，前后腔。 每个室包括负压室和工作压力室。 阀体可滑动地装配在壳体和中心壳体之间，其间具有密封构件。 阀体设置有用于在前后工作压力室之间连通的空气通道。 阀门机构与输入轴相关联地致动，以将空气通过空气通道引入前后工作压力室，从而将推力施加到前后动力活塞。 前功率活塞的隔膜在其内周上具有凸缘。 阀体的外周具有槽。 通向前工作压力室的空气通道的一部分具有在阀体中轴向延伸的主通道部分和从主通道部分径向向外延伸的旁路。 通向前工作压力室的连通口从旁路轴向延伸。 旁路通向槽中，旁路的径向外端用珠密封。

公开(公告)号：US06269732B1

公开(公告)日：2001-08-07

申请号：US09418510

申请日：1999-10-15

申请人： Hiromi Ando ,  Mitsuhiro Endo ,  Atsuya Koshu

发明人： Hiromi Ando ,  Mitsuhiro Endo ,  Atsuya Koshu

IPC分类号： F15B910

CPC分类号： B60T13/57

摘要： A pneumatic booster includes a valve mechanism for introducing atmospheric air into a variable-pressure chamber in accordance with the movement of a plunger, propelling a power piston due to differential pressure generated between the variable-pressure chamber and a constant-pressure chamber and transmitting force by which the power piston is propelled through a valve body to an output shaft. The valve mechanism includes a poppet valve mechanism including a seal surface capable of abutting against an annular atmospheric valve seat formed in the plunger and a seal surface capable of abutting against an annular negative pressure valve seat formed on an inner surface of the valve body. The annular atmospheric valve seat of the plunger is located in a position forward in a direction of propelling of the power piston relative to the negative pressure valve seat and is substantially aligned with the negative pressure valve seat in an axial direction. The poppet valve mechanism has a main poppet valve including the seal surface capable of abutting against the negative pressure valve seat and a sub poppet valve including the seal surface capable of abutting against the atmospheric valve seat. The seal surface of the sub poppet valve is spaced apart in the axial direction from the seal surface of the main poppet valve.

摘要翻译： 气动助力器包括一个阀机构，用于根据柱塞的运动将大气引入可变压力室，由于可变压力室和恒压室之间产生的差压而推动动力活塞，并且传递力 动力活塞通过阀体推动到输出轴。 阀机构包括提升阀机构，该提升阀机构包括能够抵靠形成在柱塞中的环形大气阀座的密封表面和能够抵靠形成在阀体内表面上的环形负压阀座的密封表面。 柱塞的环形大气阀座位于动力活塞相对于负压阀座的推进方向上的前方位置，并且在轴向方向上基本上与负压阀座对准。 提升阀机构具有主提升阀，其包括能够抵靠负压阀座的密封面和包括能够抵靠大气阀座的密封面的副提升阀。 副提升阀的密封面在与主提升阀的密封面的轴向隔开。

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。

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。

公开(公告)号：US4632208A

公开(公告)日：1986-12-30

申请号：US683196

申请日：1984-12-18

申请人： Toshio Takayama ,  Hiromi Ando ,  Yukio Matsumoto

发明人： Toshio Takayama ,  Hiromi Ando ,  Yukio Matsumoto

IPC分类号： B60T7/12 ,  B60T13/563 ,  B60T13/57

CPC分类号： B60T13/563 ,  B60T13/57 ,  B60T7/12

摘要： A vehicle braking system for use in a vehicle such as an automobile, and including at least one wheel brake, a brake pedal, and a brake applying device such as a master cylinder or a pneumatic booster which is connected to the brake pedal for applying hydraulic pressure on the wheel brake in response to actuation of the brake pedal. A selector valve is connected to the brake applying device and acts, when actuated, to maintain hydraulic pressure in the wheel brake irrespective to the release of the brake pedal. Further, there are provided at least one sensor such as a sensor sensing the running speed of the vehicle, a sensor sensing the actuation of a gas pedal, a sensor sensing whether a seat belt in the driver's seat is fitted on or not and the like, and a controller connected to the sensor for actuating the selector valve in response to a predetermined operational condition of the vehicle.

摘要翻译： 一种用于诸如汽车的车辆的车辆制动系统，并且包括至少一个车轮制动器，制动踏板和诸如主缸或气动助力器的制动施加装置，其连接到制动踏板以施加液压 响应于制动踏板的致动，车轮制动器上的压力。 选择阀连接到制动施加装置，并且在致动时作用，以保持车轮制动器中的液压，而与制动踏板的释放无关。 此外，提供了至少一个传感器，例如感测车辆的行驶速度的传感器，感测加速踏板的致动的传感器，感测驾驶员座椅中的座椅安全带是否安装的传感器等 以及连接到所述传感器的控制器，用于响应于所述车辆的预定操作条件来致动所述选择阀。