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：US4690465A

公开(公告)日：1987-09-01

申请号：US865443

申请日：1986-05-21

申请人： Kenji Takeda ,  Mitsuo Inagaki ,  Hideaki Sasaya ,  Kazuma Matsui

发明人： Kenji Takeda ,  Mitsuo Inagaki ,  Hideaki Sasaya ,  Kazuma Matsui

IPC分类号： B60T8/48 ,  B60T8/1761 ,  B60T8/34 ,  B60T8/36 ,  B60T8/00 ,  B60T13/68 ,  B60T15/02

CPC分类号： B60T8/369 ,  B60T8/368

摘要： A compact, piezoelectrically operated pressure modulator for antiskid control of a hydraulic braking system. In its simplest form, the modulator comprises a body in which are formed a main hydraulic passage adapted to connect the master cylinder to a wheel cylinder, and a pressure relief passage for relieving the pressure in the wheel cylinder. The main passage is opened and closed by a normally open shutoff valve operated by a piezoelectric actuator, and the relief passage is controlled by a normally closed shutoff valve operated by an associated piezoelectric actuator. Adjusting mechanisms are provided to adjust the axial position of the piezoelectric elements of the actuators in such a manner that the valve clearance of the shutoff valves is adjusted to an optimal amount.

摘要翻译： 一种用于液压制动系统防滑控制的紧凑型压电式压力调节器。 在其最简单的形式中，调制器包括主体，其中形成有用于将主缸连接到轮缸的主液压通道，以及用于减轻轮缸中的压力的​​压力释放通道。 主通道由压电致动器操作的常开截止阀打开和关闭，并且释放通道由相关联的压电致动器操作的常闭截止阀控制。 提供调节机构以调节致动器的压电元件的轴向位置，使得截止阀的阀间隙被调节到最佳量。

公开(公告)号：US4738493A

公开(公告)日：1988-04-19

申请号：US864490

申请日：1986-05-19

申请人： Mitsuo Inagaki ,  Hideaki Sasaya ,  Kenji Takeda ,  Kazuma Matsui

发明人： Mitsuo Inagaki ,  Hideaki Sasaya ,  Kenji Takeda ,  Kazuma Matsui

IPC分类号： B60T8/48 ,  B60T8/1761 ,  B60T8/40 ,  B60T8/42 ,  B60T8/02

CPC分类号： B60T8/4031 ,  B60T8/404 ,  B60T8/4275

摘要： Antiskid hydraulic braking system comprising a first shutoff valve operable to shutoff hydraulic pressure from a master cylinder to wheel cylinder as the brakes tend to lock the wheels of a vehicle. Wheel cylinders are connected to a reservoir through a second shutoff valve which relieves hydraulic pressure at the wheel cylinders until the tendency toward wheel lock disappears. The system further comprises an intermittently operable high speed hydraulic pump, such as a piezoelectric pump, which serves to pump the brake fluid in the reservoir to the wheel cylinders to restore hydraulic pressure in the wheel cylinders. The piezoelectric pump comprises a pump plunger having a small diameter head defining a pumping chamber and a large diameter base defining a delivery or pressure chamber. The brake fluid under pressure in the delivery chamber acts upon the plunger base to hydraulically preload the piezoelectric elements.

摘要翻译： 防滑液压制动系统包括第一截止阀，其可操作以在制动器倾向于锁定车辆的车轮时将从主缸到液压缸的液压切断。 轮缸通过第二截止阀连接到储存器，该第二截止阀减轻轮缸处的液压压力，直到车轮锁定的趋势消失。 该系统还包括间歇操作的高速液压泵，例如压电泵，其用于将储存器中的制动流体泵送到轮缸，以恢复轮缸中的液压。 压电泵包括具有限定泵送室的小直径头部和限定输送或压力室的大直径基座的泵柱塞。 在输送室内的压力下的制动液作用在柱塞基座上以液压预压电压元件。

公开(公告)号：US4762300A

公开(公告)日：1988-08-09

申请号：US830132

申请日：1986-02-18

申请人： Mitsuo Inagaki ,  Hideaki Sasaya ,  Kenji Takeda ,  Yoshiyuki Hattori ,  Yuzo Imoto ,  Toshihiro Takei

发明人： Mitsuo Inagaki ,  Hideaki Sasaya ,  Kenji Takeda ,  Yoshiyuki Hattori ,  Yuzo Imoto ,  Toshihiro Takei

IPC分类号： B60T8/36 ,  B60T8/42 ,  B60T8/50 ,  F16K31/00 ,  F16K31/02

CPC分类号： B60T8/5075 ,  B60T8/369 ,  B60T8/4275 ,  B60T8/5006 ,  F16K31/007

摘要： A piston in a first cylinder is driven as a piezoelectric element group, which includes a plurality of laminar piezoelectric elements stacked in layers, extends or contracts. A second cylinder is formed so as to connect with a first fluid pressure chamber which is defined in the first cylinder by the piston. A piston-shaped valve member is disposed in the second cylinder. The valve member is urged toward the first fluid pressure chamber by a spring. The first fluid pressure chamber is supplied with a fluid whose pressure is set by means of a selector valve. When the selector valve is closed, the fluid pressure chamber is defined as an independent compartment. In this state, high voltage is applied to the piezoelectric element group to elongate it, thereby driving the piston. Thus, the valve member is actuated by the fluid pressure inside the first fluid pressure chamber, and a fluid passage is opened and closed by the valve member.

摘要翻译： 第一气缸中的活塞被驱动为压电元件组，其包括层叠的多个层压压电元件，延伸或收缩。 第二气缸形成为与由活塞限定在第一气缸中的第一流体压力室连接。 活塞形阀构件设置在第二气缸中。 阀构件通过弹簧被推向第一流体压力室。 第一流体压力室被供给流体，其压力通过选择阀设定。 当选择阀关闭时，流体压力室被定义为独立的隔室。 在这种状态下，高压施加到压电元件组以使其伸长，从而驱动活塞。 因此，阀构件由第一流体压力室内的流体压力致动，并且流体通道被阀构件打开和关闭。

公开(公告)号：US5282676A

公开(公告)日：1994-02-01

申请号：US798714

申请日：1991-11-27

申请人： Kenji Takeda ,  Hiroshi Ogawa ,  Mitsuo Inagaki

发明人： Kenji Takeda ,  Hiroshi Ogawa ,  Mitsuo Inagaki

IPC分类号： B60T8/46 ,  B60T8/175 ,  B60T8/34 ,  B60T8/40 ,  B60T8/42 ,  B60T8/44 ,  B60T8/48 ,  B60T8/32

CPC分类号： B60T8/341 ,  B60T8/4018 ,  B60T8/4045 ,  B60T8/4275 ,  B60T8/445 ,  B60T8/4827 ,  B60T8/4872

摘要： A brake system capable of implementing anti-skid and traction control operations has an electromagnetic valve for connecting a master cylinder to a wheel cylinder and for disconnecting the master cylinder from the wheel cylinder when anti-skid or traction control is executed. A piezo-electric hydraulic pump is provided for introducing high-pressure brake oil when anti-skid or traction control is executed. A pressure reduction valve selectively introduces and removes brake oil so that a desired wheel cylinder pressure can be attained when anti-skid or traction control is executed. A hydraulic switching valve is connected to the main oil pressure line parallel to the electromagnetic valve and allows pressure in the master cylinder to be opened to the wheel cylinder during a braking operation. The system also includes a unit for establishing one-way communication from the wheel cylinder to the master cylinder during anti-skid control to prevent pressure in the wheel cylinder from being higher than that in the master cylinder while preventing connection between the master cylinder and the wheel cylinder during traction control.

摘要翻译： 能够实现防滑和牵引力控制操作的制动系统具有用于将主缸连接到轮缸的电磁阀，并且在执行防滑或牵引控制时将主缸与轮缸分离。 提供压电液压泵，用于在执行防滑或牵引力控制时引入高压制动油。 减压阀选择性地引入和去除制动油，使得在执行防滑或牵引力控制时可以获得期望的轮缸压力。 液压切换阀连接到与电磁阀平行的主油压线，并且允许主缸中的压力在制动操作期间向轮缸打开。 该系统还包括用于在防滑控制期间从轮缸到主缸的单向通信的单元，以防止轮缸中的压力高于主缸中的压力，同时防止主缸和主缸之间的连接 牵引力控制下的轮缸。

公开(公告)号：US4487562A

公开(公告)日：1984-12-11

申请号：US354435

申请日：1982-03-03

申请人： Mitsuo Inagaki ,  Kenji Takeda ,  Seitoku Ito

发明人： Mitsuo Inagaki ,  Kenji Takeda ,  Seitoku Ito

IPC分类号： F04C29/02

CPC分类号： F04C29/021

摘要： A rotary vane type compressor provided with a rotor member arranged eccentrically in the cylindrical housing. Vane plates are radially slidably arranged in the rotor member, so that the vane plates always contact an inner cylindrical surface of the housing. Valve means are provided for a positive close-off of the supply of oil during non-operation of the compressor while maintaining a supply of oil in a necessary amount during operation of the compressor. The compressor further includes an oil reservoir arranged in the rotor member for storing an amount of oil to be directed to a pair of bearing units.

摘要翻译： 一种旋转叶片式压缩机，其设置有偏心配置在圆筒形壳体中的转子部件。 叶片板可径向滑动地布置在转子构件中，使得叶片板总是接触壳体的内圆柱形表面。 提供阀装置用于在压缩机不运行期间正确关闭油的供应，同时在压缩机运行期间保持必要量的油供应。 压缩机还包括设置在转子构件中的储油器，用于储存一定量的油以引导到一对轴承单元。

公开(公告)号：US4451220A

公开(公告)日：1984-05-29

申请号：US311402

申请日：1981-10-14

申请人： Seitoku Ito ,  Kenji Takeda ,  Mitsuo Inagaki ,  Nobuo Motoda

发明人： Seitoku Ito ,  Kenji Takeda ,  Mitsuo Inagaki ,  Nobuo Motoda

IPC分类号： F01C21/08 ,  F04C18/344 ,  F03C2/00

CPC分类号： F01C21/0809 ,  F04C18/3441

摘要： A rotary compressor includes a cylindrical-shaped housing, a rotor rotatably mounted in the housing and formed with diametrically extending slits, and a pair of movable vanes each slidably disposed in each of the slits with its opposite ends extending beyond the associated slit in abutting relation to the inner surface of the housing. The clearances between the movable vanes and the slits of the rotor are made larger about the central portion of the rotor than adjacent to the outer periphery thereof by making each of the vanes thinner about its central portion than at its opposite end portions or making each of the slits wider about the central portion of the rotor than adjacent to the outer periphery of the rotor. With the arrangement, shearing stresses caused by shearing of oil in the compressor can be suppressed to thereby reduce a loss in the torque of the compressor, and the maximum stress on the movable vanes can be limited below an allowable stress to improve the anti-breakage characteristics of the vanes.

摘要翻译： 旋转式压缩机包括：圆筒形壳体，可旋转地安装在壳体中并形成有径向延伸狭缝的转子和一对可动叶片，每个可动叶片可滑动地设置在每个狭缝中，其相对端延伸超过相邻狭缝的邻接关系 到壳体的内表面。 通过使每个叶片围绕其中心部分比在其相对的端部处更薄，或者使每个叶片的中心部分比其相对的端部部分更薄，使得可动叶片和转子的狭缝之间的间隙围绕转子的中心部分比其外周更大 围绕转子中心部分的狭缝比与转子的外周相邻。 通过该结构，可以抑制由压缩机中的油的剪切引起的剪切应力，从而减少压缩机的扭矩损失，并且可动叶片上的最大应力可以限制在允许应力以下以改善抗断裂 叶片的特点。

公开(公告)号：US5716110A

公开(公告)日：1998-02-10

申请号：US590199

申请日：1996-01-23

申请人： Kazuo Sunami ,  Kenji Takeda ,  Mitsuo Inagaki ,  Hiroyuki Shinkai

发明人： Kazuo Sunami ,  Kenji Takeda ,  Mitsuo Inagaki ,  Hiroyuki Shinkai

IPC分类号： B60T13/52 ,  B60T8/44 ,  B60T13/563 ,  B60T13/569 ,  B60T13/72 ,  B60T11/16

CPC分类号： B60T8/448 ,  B60T13/563 ,  B60T13/569 ,  B60T13/72

摘要： A housing of a brake booster 100 includes a pair of shells 1 and 5 and a ring 3 interposed therebetween which cooperatively define an interior space for accommodating a power piston 13. The interior space is divided into a front chamber 15 and a rear chamber 16 partitioned by the power piston 13. The power piston 13 has a diaphragm 2 interposed between the front chamber 15 and the rear chamber 16. The diaphragm 2 is shiftable in an axial direction thereof in response to pressure imbalance between the front chamber 15 and the rear chamber 16. A convolution chamber 2d is provided between an inner side of the housing and an outer peripheral edge of the diaphragm 2. The convolution chamber 2d is defined by a resilient annular member flattened in the axial direction and isolated from both the front chamber 15 and the rear chamber 16. The annular member elastically rolls along the inner side of the housing in response to pressure imbalance between the convolution chamber 2d and one of the front 15 and rear chambers 16. And, a port 28 is formed in the ring 3 to supply constant pressure into the convolution chamber 2b.

摘要翻译： 制动助力器100的壳体包括一对壳体1和5以及插入其间的环3，它们协同地限定用于容纳动力活塞13的内部空间。内部空间被分成前腔室15和后腔室16分隔开 动力活塞13具有插入在前室15和后室16之间的隔膜2.隔膜2可以响应于前室15和后室之间的压力不平衡在轴向方向上移动 卷绕室2d设置在壳体的内侧和隔膜2的外周边缘之间。卷积室2d由沿轴向方向平坦化的弹性环形构件限定，并与前室15和 后室16.环形构件响应于卷积室2d和其中一个fr之间的压力不平衡而沿着壳体的内侧弹性地滚动 并且，在环3中形成端口28，以向卷积室2b供给恒定的压力。

公开(公告)号：US4705323A

公开(公告)日：1987-11-10

申请号：US873385

申请日：1986-06-12

申请人： Yuzo Imoto ,  Toshihiro Takei ,  Yoshiyuki Hattori ,  Haruhiko Uno ,  Mitsuo Inagaki ,  Kenji Takeda

发明人： Yuzo Imoto ,  Toshihiro Takei ,  Yoshiyuki Hattori ,  Haruhiko Uno ,  Mitsuo Inagaki ,  Kenji Takeda

IPC分类号： B60T8/34 ,  B60T8/36 ,  B60T8/44 ,  F16D65/14 ,  F16D65/18 ,  F16D55/08 ,  B60T8/02

CPC分类号： F16D65/18 ,  B60T8/348 ,  B60T8/369 ,  B60T8/447 ,  F16D2121/02 ,  F16D2121/28 ,  F16D2123/00

摘要： Wheel cylinders supplied with oil pressure from a master cylinder are respectively provided in brake mechanism provided in wheels of a vehicle. The wheel cylinder has a brake piston provided to form a first fluid chamber to supply oil pressure from the master cylinder, and a brake piston driven by the oil pressure of the first fluid chamber. The wheel cylinder has a piston mechanism formed by laminating thin plate shaped piezoelectric elements, and the piston mechanism is controlled to be expanded or contracted by controlling the voltage applied to the piezoelectric elements to vary the volume of the first fluid chamber. Cut-off valves are provided in passages for supplying the oil pressure from the master cylinder to the wheel cylinders, a check valve for allowing only the work oil to flow from the master cylinder to the wheel cylinder in parallel with the cut-off valve to control to expand the piston in the state the oil pressure is generated from the master cylinder and the cut-off valve is closed to control to further strengthen the oil pressure in the first fluid chamber.

摘要翻译： 提供有来自主缸的油压的轮缸分别设置在设置在车辆的车轮中的制动机构中。 轮缸具有制动活塞，该制动活塞设置成形成第一流体室，以从主缸提供油压，以及由第一流体室的油压驱动的制动活塞。 轮缸具有通过层叠薄板状压电元件而形成的活塞机构，并且通过控制施加到压电元件的电压来改变第一流体室的体积来控制活塞机构的膨胀或收缩。 截止阀设置在用于将主缸的油压供给到轮缸的通道中，止回阀仅允许工作油从截止阀平行地从主缸流到轮缸， 控制在从主缸产生油压的状态下膨胀活塞，并且截止阀被关闭以控制以进一步增强第一流体室中的油压。

公开(公告)号：US5653515A

公开(公告)日：1997-08-05

申请号：US523430

申请日：1995-09-05

申请人： Kenji Takeda ,  Mitsuo Inagaki ,  Toshihisa Ishihara ,  Kazuyuki Yamashita ,  Shuichi Kohno

发明人： Kenji Takeda ,  Mitsuo Inagaki ,  Toshihisa Ishihara ,  Kazuyuki Yamashita ,  Shuichi Kohno

IPC分类号： B60T8/00 ,  B60T8/44 ,  B60T17/22 ,  B60T13/00

CPC分类号： B60T8/448 ,  B60T17/221 ,  B60T8/00

摘要： An improved control system for antilock brake control for an automotive vehicle which includes an excessive brake pedal-depressed force alarm unit. The control system determines a slip ratio and a slip ratio variation of a wheel to derive slippage conditions of the wheel, and provides an alarm to a driver when a brake pedal-depressed force exerted on a brake pedal is too great, causing wheel slippage to occur, especially during traveling on a slippery road surface such as a snowy road.

摘要翻译： 一种用于机动车辆的防抱死制动控制的改进的控制系统，其包括过度的制动踏板踩踏力报警单元。 控制系统确定车轮的滑移率和滑移比变化以导致车轮的滑动条件，并且当施加在制动踏板上的制动踏板踩踏力太大时向驾驶员提供警报，导致车轮滑动到 发生，特别是在诸如雪道的湿滑的路面上行驶时。