公开(公告)号：US5000521A

公开(公告)日：1991-03-19

申请号：US120746

申请日：1987-11-13

申请人： Yozo Majima ,  Taro Tanaka ,  Masahiko Suzuki ,  Kazuma Matsui ,  Mitsuo Inagaki ,  Kenji Takeda

发明人： Yozo Majima ,  Taro Tanaka ,  Masahiko Suzuki ,  Kazuma Matsui ,  Mitsuo Inagaki ,  Kenji Takeda

IPC分类号： B60T8/36 ,  B60T8/40 ,  B60T8/42 ,  B60T8/48 ,  F16D65/14

CPC分类号： B60T8/4266 ,  B60T8/3615 ,  B60T8/369 ,  B60T8/4031 ,  B60T8/4809 ,  F16D65/18 ,  F16D2121/02 ,  F16D2121/28 ,  F16D2123/00 ,  F16D2125/10

摘要： A wheel cylinder and brake piston are formed in the brake caliper of each wheel of a vehicle. A piezoelectric device, which is formed of laminated piezoelectric elements, is formed in the brake caliper such that it is connected with the wheel cylinder. By applying a voltage to the piezoelectric elements the piston device is made to expand and contract to thereby vary the volume of the wheel cylinder. Brake fluid is supplied from the master cylinder to the wheel cylinder via fluid passage formed in the brake caliper and a control valve for opening and closing this passage is formed in the passage. When there is a high pressure in the wheel cylinder, the piezoelectric device expands and the control valve closes. Then, by lowering the voltage the piezoelectric device contracts and the pressure in the wheel cylinder decreases.

摘要翻译： 在车辆的每个车轮的制动钳中形成轮缸和制动活塞。 由压电元件形成的压电元件形成在制动钳中，使其与轮缸连接。 通过向压电元件施加电压，使活塞装置膨胀和收缩，从而改变轮缸的体积。 制动液通过形成在制动钳中的流体通道从主缸供给到轮缸，并且在通道中形成用于打开和关闭该通道的控制阀。 当轮缸中存在高压时，压电装置膨胀并且控制阀关闭。 然后，通过降低压电装置的电压而使轮缸内的压力下降。

公开(公告)号：US06209970B1

公开(公告)日：2001-04-03

申请号：US09204143

申请日：1998-12-03

申请人： Masahiko Kamiya ,  Yozo Majima

发明人： Masahiko Kamiya ,  Yozo Majima

IPC分类号： B60T836

CPC分类号： B60T8/442 ,  B60T8/363 ,  B60T8/4872 ,  B60T15/028 ,  Y10T137/86919 ,  Y10T137/87217

摘要： An electromagnetic valve is arranged in a conduit between a master cylinder and an intake side of a pump in a brake control system. In the electromagnetic valve, a main communication path and a restricted communication path are formed. The main communication path is alternatively opened and closed by a main valve body. The restricted communication path is formed in the main valve body and alternatively opened and closed by an auxiliary valve body. A solenoid generates electromagnetic force to bias the auxiliary valve body in a direction of opening the restricted communication path. The auxiliary valve body is provided with an engaging portion for engaging with the main valve body to move the main valve body in a direction of opening the main communication path after opening the restricted communication path.

摘要翻译： 在制动控制系统中的泵的主缸和进气侧之间的管道中布置有电磁阀。 在电磁阀中，形成主通信路径和限制通信路径。 主通信路径由主阀体交替地打开和关闭。 受限通信路径形成在主阀体中，并由辅助阀体交替地打开和关闭。 螺线管产生电磁力，以沿着打开受限通信路径的方向偏压辅助阀体。 辅助阀体设置有用于与主阀体接合以在打开受限通信路径之后使主阀体沿打开主通信路径的方向移动的接合部分。

公开(公告)号：US06808160B2

公开(公告)日：2004-10-26

申请号：US10432359

申请日：2003-05-30

申请人： Hideyuki Hayakawa ,  Yozo Majima ,  Yuji Yabuki ,  Noriyuki Hosoi

发明人： Hideyuki Hayakawa ,  Yozo Majima ,  Yuji Yabuki ,  Noriyuki Hosoi

IPC分类号： F16K3102

CPC分类号： F16K31/0689 ,  B60T8/363 ,  F16K31/0624 ,  F16K31/0665 ,  H01F7/081 ,  H01F7/1607 ,  H01F17/062

摘要： According to the present invention, a cylindrical member of a solenoid valve is provided with a protruding portion that protrudes in an axial direction of the cylindrical member. By fitting the protruding portion into a vertical groove of a plunger, it is possible to restrict the cylindrical member from moving in a peripheral direction of the plunger. Therefore, it is possible to prevent change of the flow path that passes the plunger and the vertical groove, as well as to prevent variation in a sliding speed of the plunger or the like. As a result, a fluid pulsation reduction effect is obtained.

公开(公告)号：US06332655B1

公开(公告)日：2001-12-25

申请号：US09449417

申请日：1999-11-29

申请人： Masahiko Kamiya ,  Yozo Majima

发明人： Masahiko Kamiya ,  Yozo Majima

IPC分类号： B60T836

CPC分类号： F16K31/0693 ,  B60T8/363 ,  B60T8/5025 ,  B60T8/5093 ,  B60T15/028

摘要： The electromagnetic valve is comprised of first communication path and second communication path with a throttle connected in parallel to each other, a first plunger having a first valve for interrupting/communicating the first communication path and having a penetration hole extending to the second communication path, a second plunger having a second valve movable in or through the penetration hole for interrupting/communicating the second communication path, a spring member for generating spring biasing force and a coil member for generating an electromagnetic attracting force, when energized, to have the first and second plungers come close to each other against the spring biasing force. The electromagnetic valve may be controlled in a manner that the first communication path is interrupted and the second communication path is communicated at a pressure-increase timing during an anti-skid control.

摘要翻译： 电磁阀由第一连通路径和第二连通路径组成，节气门彼此并联连接，第一柱塞具有用于中断/连通第一连通路径并具有延伸到第二连通路径的穿透孔的第一阀， 第二柱塞，其具有可在贯穿孔中穿过或穿过所述贯通孔的第二阀，用于中断/连通第二连通路径;弹簧构件，用于产生弹簧偏置力;以及线圈构件，用于在通电时产生电磁吸引力，以具有第一和 第二个柱塞相对于弹簧偏压力相互靠近。 可以以防止第一通信路径中断并且在防滑控制期间以增压定时与第二通信路径通信的方式来控制电磁阀。

公开(公告)号：US07438276B2

公开(公告)日：2008-10-21

申请号：US11505384

申请日：2006-08-17

申请人： Atsushi Yoshikawa ,  Yozo Majima

发明人： Atsushi Yoshikawa ,  Yozo Majima

IPC分类号： F16K31/02

CPC分类号： F15B13/0442 ,  B60T8/367

摘要： In a pressure increase control valve, the size of a gap G between a plunger and a guide is 0.2 mm or greater, or a ratio between a diameter of a restriction and a seat diameter ds is 0.9 or less. Setting the size of the gap between the plunger and the guide to 0.2 mm or greater can decrease variations in an electromagnetic force with respect to a stroke of a valve body. In addition, setting the ratio between the diameter do of the restriction and the seat diameter to 0.9 or less can increase variations in a fluid force with respect to the stroke of the valve body. Therefore, it is easier to achieve a relationship between the electromagnetic force and a resistance force that is required in order to enable linear control of a differential pressure amount generated between upstream and downstream flows.

摘要翻译： 在增压控制阀中，柱塞与引导件之间的间隙G的大小为0.2mm以上，限制直径与座径直径ds之比为0.9以下。 将柱塞和引导件之间的间隙尺寸设定为0.2mm以上可以减小电磁力相对于阀体行程的变化。 此外，将限制的直径do与座直径之比设定为0.9以下可以增加相对于阀体的行程的流体力的变化。 因此，为了能够线性控制在上下游流量之间产生的差压量，电磁力与所需的阻力之间的关系更容易。

公开(公告)号：US20070045581A1

公开(公告)日：2007-03-01

申请号：US11505384

申请日：2006-08-17

申请人： Atsushi Yoshikawa ,  Yozo Majima

发明人： Atsushi Yoshikawa ,  Yozo Majima

IPC分类号： F16K31/02

CPC分类号： F15B13/0442 ,  B60T8/367

摘要： In a pressure increase control valve, the size of a gap G between a plunger and a guide is 0.2 mm or greater, or a ratio between a diameter of a restriction and a seat diameter ds is 0.9 or less. Setting the size of the gap between the plunger and the guide to 0.2 mm or greater can decrease variations in an electromagnetic force with respect to a stroke of a valve body. In addition, setting the ratio between the diameter do of the restriction and the seat diameter to 0.9 or less can increase variations in a fluid force with respect to the stroke of the valve body. Therefore, it is easier to achieve a relationship between the electromagnetic force and a resistance force that is required in order to enable linear control of a differential pressure amount generated between upstream and downstream flows.

摘要翻译： 在增压控制阀中，柱塞与引导件之间的间隙G的大小为0.2mm以上，限制直径与座径直径ds之比为0.9以下。 将柱塞和引导件之间的间隙尺寸设定为0.2mm以上可以减小电磁力相对于阀体行程的变化。 此外，将限制的直径do与座径之间的比率设定为0.9以下可以增加相对于阀体的行程的流体力的变化。 因此，为了能够线性控制在上下游流量之间产生的差压量，电磁力与所需的阻力之间的关系更容易。