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公开(公告)号：US4669268A
公开(公告)日：1987-06-02
申请号：US645727
申请日：1984-08-30
申请人： Hiroo Takeuchi , Nobuaki Hachiro
发明人： Hiroo Takeuchi , Nobuaki Hachiro
摘要： A master cylinder-reducing valve assembly has a master cylinder and a reducing valve for transmitting output hydraulic pressure from the master cylinder to a rear wheel brake at a reduced level. The reducing valve includes a valve housing provided on the master cylinder and having an inlet communicating with the output port of the master cylinder and an outlet communicating with a rear wheel brake. A pressure receiving piston is slidably received in the valve housing to divide the interior of the housing into an input hydraulic chamber communicating with the inlet and an output hydraulic chamber communicating with the outlet. The pressure receiving piston has a communication bore connecting between the input and output hydraulic chambers. A valve member is disposed in the input hydraulic chamber to open and close the communication bore. A valve spring is received in the valve housing and biases the valve member toward the pressure receiving piston. A pressure regulatng spring is also received in the valve housing for biasing the pressure receiving piston away from the valve member. The valve housing comprises a first half part having the inlet and integral with the master cylinder, and a second half part having the outlet and screwed to the first half part. The second half part has a valve cylinder fitted into its opening adjacent the first half part. A valve cylinder houses the valve member and the valve spring loaded between the valve member and the valve cylinder.
摘要翻译： 主缸减速阀组件具有主缸和用于以低水平将主缸的输出液压传递到后轮制动器的减速阀。 减压阀包括设置在主缸上并具有与主缸的输出端口连通的入口和与后轮制动器连通的出口的阀壳体。 压力接收活塞可滑动地容纳在阀壳体中以将壳体的内部分成与入口连通的输入液压室和与出口连通的输出液压室。 压力接收活塞具有连接在输入和输出液压室之间的连通孔。 阀构件设置在输入液压室中以打开和关闭连通孔。 阀弹簧被容纳在阀壳体中并将阀构件朝向受压活塞偏压。 压力调节弹簧也容纳在阀壳体中，用于将压力接收活塞偏离阀构件。 阀壳体包括具有入口并与主缸一体的第一半部分，以及具有出口并拧到第一半部分的第二半部分。 第二半部分具有安装在其邻近前半部分的开口中的阀缸。 阀门容纳阀构件和装载在阀构件和阀筒之间的阀弹簧。
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公开(公告)号：US4557179A
公开(公告)日：1985-12-10
申请号：US682472
申请日：1984-12-17
IPC分类号： B60T13/56 , B60T13/567 , B60T13/569 , F16J1/02 , F01B11/02
CPC分类号： B60T13/569 , B60T13/5675
摘要： A vacuum type brake booster device comprising a booster shell, a booster piston accommodated in the booster shell, a piston diaphragm working together with the booster piston for dividing the booster shell into both front and rear working chambers, and tie rods extending through the piston and the diaphragm for connection of the front and rear walls of the booster shell. Circumferential positioning devices are arranged between the booster piston and piston diaphragm and between the piston diaphragm and booster shell, respectively, so that the piston can correctly be adapted to the shell. Accordingly, the booster piston can be operated freely from interference of the tie rods. Furthermore, the piston diaphragm can be prevented from unnecessary forces due to the pressure difference between both the working chambers by the aid of thin-wall portions arranged in the piston diaphragm.
摘要翻译： 一种真空式制动助力装置，包括升压器外壳，容纳在助力器外壳中的增压器活塞，与增压器活塞一起工作的活塞隔膜，用于将助力器外壳分成前后工作室和延伸穿过活塞的拉杆; 用于连接增压器壳体的前壁和后壁的隔膜。 环形定位装置分别设置在增压活塞和活塞隔膜之间，分别位于活塞隔膜和增压器外壳之间，使活塞可以正确地适应壳体。 因此，助力活塞可以自由地操纵拉杆的干涉。 此外，借助于布置在活塞隔膜中的薄壁部分，可以防止活塞隔膜由于两个工作室之间的压力差而产生不必要的力。
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公开(公告)号：US4428274A
公开(公告)日：1984-01-31
申请号：US275772
申请日：1981-06-22
IPC分类号： B60T13/56 , B60T13/567 , B60T13/569 , F15B9/10
CPC分类号： B60T13/569 , B60T13/5675
摘要： A vacuum type brake booster device comprising a booster shell, a booster piston accommodated in the booster shell, a piston diaphragm working together with the booster piston for dividing the booster shell into front and rear working chambers, and tie rods extending through the piston and the diaphragm for connection of the front and rear walls of the booster shell. The piston diaphragm is provided with reasonably arranged reinforcing beads integrally formed projected therewith for increasing the tensile rigidity of the diaphragm. Accordingly, the thrust force produced by the pressure difference between both the working chambers can be effectively transmitted from the piston diaphragm to the booster piston.
摘要翻译： 一种真空式制动助力装置，包括升压器壳体，容纳在增压器壳体中的增压器活塞，与增压器活塞一起工作的活塞隔膜，用于将助力器外壳分成前后工作室，以及延伸穿过活塞的拉杆和 隔膜用于连接增压器外壳的前壁和后壁。 活塞隔膜设置有与其一体地形成的合理布置的增强珠，以增加隔膜的拉伸刚度。 因此，由两个工作室之间的压差产生的推力能够从活塞隔膜有效地传递到增压活塞。
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公开(公告)号：US4320624A
公开(公告)日：1982-03-23
申请号：US133399
申请日：1980-03-24
申请人： Hiroo Takeuchi
发明人： Hiroo Takeuchi
摘要： A master cylinder for actuating a hydraulic cylinder for a hydraulic brake or clutch. The master cylinder includes a cylinder body having a cylinder bore defined therein. The cylinder bore is in communication with an oil tank by way of a supply port and a relief port formed through the wall of the cylinder bore in axially spaced relation from each other. A piston is slidably received in the cylinder bore to define a hydraulic chamber forwardly thereof and comprises a pair of forward and rear piston portions axially spaced apart from each other with an annular seal member disposed therebetween. A cup support is integrally formed with the forward piston portion forwardly thereof and has a radially outer peripheral surface facing the inner peripheral surface of the cylinder bore with an annular clearance formed therebetween. Between the cup support and the forward piston portion there is defined an annular passage in communication with a communication passage which is formed in the outer peripheral surface of the forward piston portion and communicates with the supply port. A resilient piston cup is directly carried on the forward face of the cup support for controlling communication between the relief port and the hydraulic chamber in accordance with the axial sliding movement of the piston in the cylinder bore.
摘要翻译： 用于致动用于液压制动器或离合器的液压缸的主缸。 主缸包括具有限定在其中的缸孔的缸体。 气缸孔通过供给口和通过气缸孔的壁彼此轴向间隔开形成的释放口与油箱连通。 活塞可滑动地容纳在气缸孔中以在其前方限定液压室，并且包括一对轴向间隔开的前后活塞部分，其间设置有环形密封构件。 杯形支撑件与其向前的前部活塞部分一体地形成，并且具有面对气缸孔的内周表面的径向外周面，其间形成有环形间隙。 在杯状支撑件和前部活塞部之间形成有与形成在前方活塞部的外周面的连通路连通并与供给口连通的环状通路。 弹性活塞杯直接承载在杯支撑件的前表面上，用于根据活塞在气缸孔中的轴向滑动运动来控制卸压口和液压室之间的连通。
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公开(公告)号：US4282799A
公开(公告)日：1981-08-11
申请号：US083534
申请日：1979-10-10
申请人： Hiroo Takeuchi
发明人： Hiroo Takeuchi
IPC分类号： B60T13/56 , B60T13/57 , B60T13/573 , B60T13/575 , F15B9/10
CPC分类号： B60T13/57 , B60T13/575
摘要： A negative pressure booster wherein a brake master cylinder of an automobile is boosted and operated under negative pressure. The booster comprises a booster shell, a booster piston to divide the interior of the booster shell into a first and second operating chambers, a valve cylinder, a valve piston received in the valve cylinder and a reaction piston. The sliding stroke of the reaction piston is regulated to be smaller than the sliding stroke of the valve piston so that even if the valve piston is largely retracted, the amount of inflation and deformation of the resilient piston may be minimized.
摘要翻译： 一种负压增压器，其中汽车的制动主缸在负压下被升压和操作。 升压器包括增压器壳体，将增压器壳体的内部分成第一和第二操作室的增压活塞，阀缸，容纳在阀缸中的阀活塞和反应活塞。 反应活塞的滑动行程被调节为小于阀活塞的滑动行程，使得即使阀活塞大大缩回，弹性活塞的膨胀和变形量也可以最小化。
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公开(公告)号：US4227371A
公开(公告)日：1980-10-14
申请号：US887414
申请日：1978-03-15
申请人： Hiroo Takeuchi
发明人： Hiroo Takeuchi
IPC分类号： B60T13/57 , B60T13/565 , B60T13/00
CPC分类号： B60T13/565
摘要： A vacuum type brake booster device including an input rod with an adjustable stop mechanism for enabling the input rod to have such a normal, full-retracted position as to hold the booster control valve in a neutral position to keep the second working chamber of the booster out of communication with the first working chamber thereof as well as with the atmosphere while holding the booster output rod in direct abutting engagement with the brake master cylinder piston. There is no delay in operation of the brake master cylinder when the brake pedal is depressed.
摘要翻译： 一种真空式制动器增压装置，包括具有可调停止机构的输入杆，用于使得输入杆能够具有这样的正常的完全缩回位置，以将增压器控制阀保持在中间位置，以保持升压器的第二工作室 在与增压输出杆保持与制动主缸活塞直接邻接的同时，与其第一工作室以及大气连通。 当制动踏板被按下时，制动主缸的操作没有延迟。
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公开(公告)号：US4005638A
公开(公告)日：1977-02-01
申请号：US638689
申请日：1975-12-08
申请人： Hiroo Takeuchi
发明人： Hiroo Takeuchi
IPC分类号： B60T13/573 , B60T13/577 , F15B9/10
CPC分类号： B60T13/577
摘要： A servo-motor including control valve and reaction means of novel design is provided which has improved operation characteristics with a minimum of hysteresis, enabling the driver to lightly operate a brake or other associated system while accurately feeling the reaction therefrom. The control valve means precludes any loss of vacuum from a first power chamber as may otherwise occur when a second power chamber is placed into communication with the atmosphere and, eliminating the need for sealing means as arranged around an input member extending through a movable wall of the servo-motor, minimizes the resistance to axial sliding movement of the input member. The motor structure is simplified and includes a minimum number of component parts.
摘要翻译： 提供了一种包括控制阀和新颖设计的反作用装置的伺服电动机，其具有最小滞后性的改进的操作特性，使驾驶员能够在准确地感觉到反作用的同时轻松操作制动器或其它相关系统。 控制阀装置排除了来自第一动力室的任何真空损失，否则当第二动力室与大气相连通时可能发生真空，并且消除了密封装置的需要，该密封装置围绕输入构件设置，该输入构件延伸穿过可移动壁 伺服电机使输入部件的轴向滑动阻力最小化。 电机结构简单，包括最少数量的部件。
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公开(公告)号：US4434707A
公开(公告)日：1984-03-06
申请号：US317011
申请日：1981-11-02
IPC分类号： B60T13/567 , F15B9/10 , F16J3/02
CPC分类号： B60T13/567
摘要： A vacuum type brake booster device is provided which comprises a booster shell of substantially elliptical shape in transverse cross section, a booster piston of similar shape as the booster shell and accommodated therein for axial reciprocating movement, and a diaphragm secured about the outer periphery thereof to the booster shell and about the inner periphery to the booster piston to divide the interior of the booster shell into a first working chamber in communication with a vacuum source and a second working chamber adapted to be selectively placed in communication with the first working chamber or the atmosphere by a switching valve. The diaphragm is also shaped substantially elliptically in transverse cross section, and includes a pair of opposite straight peripheral wall sections and a pair of opposite arcuate peripheral wall sections interconnecting the straight wall sections; the arcuate wall sections have a wall thickness greater than that of the straight wall sections.
摘要翻译： 提供一种真空式制动助力装置，其包括横截面为大致椭圆形的增压器外壳，与增压器外壳相似形状的增压器活塞，用于轴向往复运动，以及围绕其外周固定的隔膜 增压器壳体和围绕增压器活塞的内周围，以将增压器壳体的内部分成与真空源连通的第一工作室和适于选择性地放置成与第一工作室或第二工作室连通的第二工作室 气体由切换阀。 隔膜也在横截面上基本上椭圆形地成形，并且包括一对相对的直的周壁部分和互连直壁部分的一对相对的弧形周壁部分; 弧形壁部分的壁厚大于直壁部分的壁厚。
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公开(公告)号：US4358990A
公开(公告)日：1982-11-16
申请号：US227411
申请日：1981-01-22
申请人： Hiroo Takeuchi
发明人： Hiroo Takeuchi
CPC分类号： B60T13/57
摘要： A negative pressure booster wherein a brake master cylinder of an automobile is boosted and operated under negative pressure. The booster comprises a booster shell, a booster piston to divide the interior of the booster shell into a first and second actuator chambers, a valve cylinder, a valve piston received in the valve cylinder and a resilient valve body. During the retraction of the valve piston, the retracting force thereof is supported on the resilient valve body so that as the retracting force increases, the gap between the first valve seat and the valve portion increases.
摘要翻译： 一种负压增压器，其中汽车的制动主缸在负压下被升压和操作。 增压器包括增压器外壳，将增压器壳体的内部分成第一和第二致动器室的增压器活塞，阀缸，容纳在阀缸中的阀活塞和弹性阀体。 在阀活塞回缩期间，其回缩力被支撑在弹性阀体上，使得当缩回力增大时，第一阀座与阀部之间的间隙增加。
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公开(公告)号：US4195661A
公开(公告)日：1980-04-01
申请号：US909656
申请日：1978-05-25
申请人： Hiroo Takeuchi
发明人： Hiroo Takeuchi
IPC分类号： B60T13/56 , B60T13/567 , F16K15/04
CPC分类号： B60T13/567 , Y10T137/7856
摘要： On the wall of a booster shell which defines a vacuum chamber, a nonreturn-valve casing is formed in two halves. One casing half is formed integral with the wall of the booster shell and the other casing half is rotatably fitted to the former. With the first casing half formed in effect as a part of the wall of the booster shell, there is no leakage of vacuum from the booster shell to the exterior thereof. The second casing half has an L-shaped connector pipe formed integral therewith for connection with a vacuum line and the bent tip portion of the L-shaped connector pipe can be set in any radial direction simply by adjusting the angular position of the second casing half relative to the first.
摘要翻译： 在限定真空室的增压器外壳的壁上，在两个半部中形成一个止回阀壳体。 一个壳体半部与增压器壳体的壁一体形成，另一个壳体半部可旋转地装配到前者。 由于第一壳体半部形成为增压器壳体的壁的一部分，所以没有真空从增压器壳体泄漏到其外部。 第二壳体半部具有与真空管线连接的L形连接管，L形连接管的弯曲的顶端部分可以简单地通过调节第二壳体半部 相对于第一。
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