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公开(公告)号：US4478461A
公开(公告)日：1984-10-23
申请号：US411139
申请日：1982-08-24
申请人： Heinz Leiber
发明人： Heinz Leiber
IPC分类号： B60T8/48 , B60T8/172 , B60T8/1763 , B60T8/44 , B60T13/12 , B60T13/14 , B60T13/66 , B60T13/68 , B60T17/22 , B60T17/18
CPC分类号： B60T13/686 , B60T13/145 , B60T13/148 , B60T17/22 , B60T8/445
摘要： A hydraulic dual-circuit servo brake apparatus is provided with a control valve, which is intended for directing the pressure medium of a pressurizing device into the brake circuit. The control valve is embodied as a magnetic valve, which is actuatable via signal transducers, valves, or the like in accordance with the given position of the main cylinder pistons. The control valve may be combined with an anti-skid apparatus such that the magnetic valve is also actuatable in accordance with the functioning of the anti-skid means. An integration of the magnetic valve with multiple-position valves of an anti-skid control means is possible.
摘要翻译： 液压双回路伺服制动装置设置有用于将加压装置的压力介质引导到制动回路中的控制阀。 控制阀被实施为根据主缸活塞的给定位置通过信号传感器，阀门等可致动的电磁阀。 控制阀可以与防滑装置组合，使得电磁阀也可根据防滑装置的功能起动。 电磁阀与防滑控制装置的多位置阀的集成是可能的。
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公开(公告)号：US4475336A
公开(公告)日：1984-10-09
申请号：US294111
申请日：1981-08-19
申请人： Dean E. Runkle
发明人： Dean E. Runkle
CPC分类号： B60T13/145 , B60T13/148
摘要： A braking apparatus (28) includes a housing (38). The housing (38) includes therein: a master cylinder section (40) for supplying pressurized fluid to the brakes (24) of an automotive vehicle (10) to effect a brake application, a hydraulic booster section (42) for assisting the master cylinder section (40) to effect a brake application, a fluid pumping section (44) driven by an electric motor, for supplying pressurized fluid to the hydraulic booster section (42), and a reservoir section (46) supplying a single fluid to the sections 40, 42, and 44. The electric motor driving the fluid pumping section (44) receives energy from the vehicle (10) only in response to a need for braking. The brake booster (28) includes a fluid pressure accumulator (147) providing pressurized fluid to the booster section (42) during a brake application. The accumulator (147) also provides for power-assisted braking in the event of a failure of the motor-driven pumping section (44).
摘要翻译： 制动装置（28）包括壳体（38）。 壳体（38）包括：主缸部分（40），用于将加压流体供应到机动车辆（10）的制动器（24）以实现制动施加;液压助力器部分（42），用于辅助主缸 （40）进行制动施加，由电动机驱动的用于向液压助力器部分（42）供应加压流体的流体泵送部分（44）;以及储存部分（46），其将单个流体供应到所述部分 驱动流体泵送部（44）的电动马达仅响应于制动的需要而从车辆（10）接收能量。 制动助力器（28）包括在制动施加期间向增压器部分（42）提供加压流体的流体压力蓄能器（147）。 蓄电池（147）还在马达驱动泵送部分（44）发生故障的情况下提供功率辅助制动。
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公开(公告)号：US4350396A
公开(公告)日：1982-09-21
申请号：US124264
申请日：1980-02-25
申请人： Ivan Mortimer
发明人： Ivan Mortimer
CPC分类号： B60T8/3615 , B60T13/148 , B60T8/5037 , B60T8/5043
摘要： The disclosure concerns an anti-skid brake control system of the kind which senses the presence of skid conditions at a hydraulically braked wheel and then automatically relieves the brake pressure at that wheel by expanding the volume of a chamber connected to the wheel brake. In the system disclosed, a regulator is connected in a high pressure fluid supply line so as to control the rate at which the volume of the chamber is reduced on cessation of the skid conditions, thereby controlling the rate at which the brakes are re-applied. In the particular embodiment described, the regulator comprises a cup-shaped piston reciprocable within a cylinder bore. A first restriction of predetermined size is defined by the end wall of the piston and a second restriction of variable size is formed between a number of radial ports in the bore wall and an annular recess in the outside of the piston, this recess being permanently connected to the inner space of the piston. Fluid flows from the variable restriction to the predetermined restriction and a pressure difference is produced across the predetermined restriction. Any increase in this pressure difference causes the piston to move against the action of a compression spring to restrict the size of the variable restriction, thereby regulating the flow of fluid to a predetermined value.
摘要翻译： 本公开涉及这样一种防滑制动控制系统，该系统检测在液压制动轮处存在滑动条件，然后通过扩大连接到车轮制动器的室的容积来自动减轻该车轮处的制动压力。 在所公开的系统中，调节器连接在高压流体供给管线中，以便在停止滑动条件时控制室的体积减小的速率，从而控制制动器重新施加的速率 。 在所描述的特定实施例中，调节器包括可在气缸孔内往复运动的杯形活塞。 预定尺寸的第一限制由活塞的端壁限定，并且可变尺寸的第二限制形成在孔壁中的多个径向端口和活塞外部的环形凹部之间，该凹部被永久连接 到活塞的内部空间。 流体从可变限制流向预定的限制，并跨过预定的限制产生压力差。 该压力差的任何增加导致活塞抵抗压缩弹簧的作用移动以限制可变限制的尺寸，从而将流体的流量调节到预定值。
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公开(公告)号：US4281585A
公开(公告)日：1981-08-04
申请号：US112508
申请日：1980-01-16
CPC分类号： B60T13/144 , B60T13/143 , B60T13/148
摘要： A hydraulic brake booster includes a housing which defines a pressure chamber and a piston within the housing is movable in response to pressurized fluid within the pressure chamber to effectuate a brake application. The piston encloses a storage chamber and forms a passage communicating the storage chamber with the pressure chamber. A valve member is disposed within the passage to control communication between the storage chamber and the pressure chamber. An operator actuator cooperates with a control valve to communicate pressurized fluid to the pressure chamber and a finger is actuated by the operator actuator to engage the valve member, thereby opening communication between the storage chamber and the pressure chamber. The valve member comprises a unitary assembly having a sleeve sealingly engaging the wall of the piston passage, a seat member biased into engagement with a shoulder defined by a stepped bore on the sleeve, and a stem extending through a bore on the seat member.
摘要翻译： 液压制动助力器包括限定压力室的壳体，并且壳体内的活塞响应于压力室内的加压流体而可移动以实现制动施加。 活塞包围存储室并且形成将储存室与压力室连通的通道。 阀构件设置在通道内以控制存储室和压力室之间的连通。 操作者致动器与控制阀配合以将加压流体传送到压力室，并且手指由操作者致动器致动以接合阀构件，从而打开储存室和压力室之间的连通。 阀构件包括整体组件，其具有密封地接合活塞通道的壁的套筒，偏置成与由套筒上的阶梯孔限定的肩部接合的座构件，以及延伸穿过座椅构件上的孔的杆。
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公开(公告)号：US4274326A
公开(公告)日：1981-06-23
申请号：US16086
申请日：1979-02-28
申请人： Denny L. Peeples
发明人： Denny L. Peeples
CPC分类号： B60T13/144 , B60T13/148
摘要： A hydraulic power brake system in which a hydraulic power brake booster has one or more back pressure control valves to produce a restriction downstream of the booster control valve after the booster has been actuated to build up some booster power pressure. This back pressure on the booster control valve is effective to control hydraulic valve noise during booster operation. There is substantially no fluid restriction in the booster when the booster is not actuated. Three back pressure control valve arrangements are disclosed.
摘要翻译： 一种液压动力制动系统，其中液压动力制动助力器具有一个或多个背压控制阀，以在增压器被致动以产生一些增压器功率压力之后产生在增压控制阀下游的限制。 增压器控制阀上的这种背压在加油操作期间有效地控制液压阀噪声。 当助力器未被致动时，助力器中基本上没有流体限制。 公开了三个背压控制阀装置。
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公开(公告)号：US4273516A
公开(公告)日：1981-06-16
申请号：US25864
申请日：1979-04-02
申请人： Glyn P. R. Farr
发明人： Glyn P. R. Farr
CPC分类号： F04B9/00 , B60T13/148 , F04B49/022 , F04B9/107
摘要： A pump assembly for an hydraulic braking system comprises a housing having an inlet for connection to a tank for liquid, an outlet for connection to an hydraulic accumulator, and a piston reciprocably mounted in a bore in the housing to draw liquid into a working chamber during an induction stroke and to force it to the outlet during a power stroke. A drive mechanism is provided for moving the piston in one direction during the induction stroke, and the piston is moved in the opposite direction during the power stroke by subjecting the piston to pressure at the outlet.
摘要翻译： 一种用于液压制动系统的泵组件包括具有用于连接到液体罐的入口的壳体，用于连接到液压蓄能器的出口和可往复运动地安装在壳体中的孔中的活塞，以将液体抽吸到工作室中 感应冲程，并在动力冲程期间将其推到出口。 提供驱动机构用于在吸入冲程期间沿一个方向移动活塞，并且通过使活塞在出口处施加压力，活塞在动力冲程期间沿相反方向移动。
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公开(公告)号：US4261688A
公开(公告)日：1981-04-14
申请号：US21945
申请日：1979-03-19
CPC分类号： F04B9/107 , B60T13/148
摘要： An hydraulic pressure converter comprises a differential piston which works in a stepped bore in a housing. A pressure space is defined in the housing at the end of a portion of the piston which is of smaller area so that reciprocation of the piston in the bore causes hydraulic fluid to be drawn into the pressure space through a first one-way valve and then pumped to an outlet through a second one-way valve. Reciprocation of the piston is accomplished by subjecting the piston to pressure from a pump to move the piston in a first direction away from a stop face and against the force in a compression spring so that hydraulic fluid is drawn into the pressure space. A valve assembly is operative to reduce the force urging the piston in the first direction when the displacement attains a predetermined value whereafter the spring is operative to urge the piston in a second opposite direction to force fluid to the outlet from the pressure space.
摘要翻译： 液压变压器包括工作在壳体中的台阶孔中的差动活塞。 一个压力空间被限定在活塞的一部分较小面积的端部的外壳中，使得活塞在孔中的往复运动导致液压流体通过第一单向阀被吸入压力空间，然后 通过第二个单向阀泵送到出口。 活塞的往复是通过对活塞施加来自泵的压力，使活塞沿第一方向移动离开止动面并抵抗压缩弹簧中的力，使得液压流体被吸入压力空间。 当所述位移达到预定值时，阀组件可操作以减小当所述位移达到预定值时推动所述活塞的力，此后所述弹簧可操作以沿着第二相反方向推动所述活塞，以将流体推压到所述压力空间的出口。
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公开(公告)号：US4252141A
公开(公告)日：1981-02-24
申请号：US147432
申请日：1980-05-05
申请人： Jochen Burgdorf , Ludwig Budecker , Klaus Winter , Anton David
发明人： Jochen Burgdorf , Ludwig Budecker , Klaus Winter , Anton David
CPC分类号： G05D7/0126 , B60T13/148 , Y10T137/2524 , Y10T137/7852
摘要： The valve includes a control piston axially slidable in a cylindrical bore which controls the cross-sectional area of an orifice of a connection between the cylindrical bore communicating with a pressure port and a user port. The control piston is acted on by a spring and a pressure which is reduced relative to the pressure at the pressure port. A cushioning arrangement acting on the control piston avoids occurrence of pressure surges affecting the control piston behavior.
摘要翻译： 阀包括可在圆柱形孔中轴向滑动的控制活塞，其控制与压力端口连通的圆柱形孔与用户端口之间的连接孔的横截面面积。 控制活塞由弹簧和相对于压力端口处的压力而减小的压力作用。 作用在控制活塞上的缓冲装置避免了影响控制活塞行为的压力波动的发生。
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109.发明授权
公开(公告)号：US4236762A
公开(公告)日：1980-12-02
申请号：US966210
申请日：1978-12-04
申请人： Michael J. Hawker
发明人： Michael J. Hawker
CPC分类号： B60T13/148 , B60T13/141 , B60T17/22
摘要： A tractor-trailer hydraulic braking system in which the tractor braking circuit and trailer braking circuit are inter-connected by releasable hydraulic couplings including both service and emergency line connections each with its associated return line. The trailer circuit also includes a pressure storage unit or accumulator and a emergency valve operable to apply the trailer brakes in the event of loss of emergency line pressure. To avoid leak down of the accumulator over a period following de-coupling of the trailer an expansion tank or chamber is connected into the trailer circuit so as to receive fluid leaking into the return lines from the accumulator and to retain such fluid until the pump can return it to the accumulator.
摘要翻译： 拖拉机 - 拖车液压制动系统，其中牵引车制动回路和拖车制动回路通过可释放的液压联轴器相互连接，包括服务和紧急线路连接，每个都具有其相关的返回线。 拖车回路还包括压力存储单元或蓄能器和可操作以在失去紧急线路压力的情况下应用拖车制动器的紧急阀。 为了在拖车解耦之后的一段时间内避免蓄能器泄漏，膨胀箱或室连接到拖车回路中，以便接收从蓄能器泄漏到返回管路中的流体并保持这种流体，直到泵可以 将其返回到累加器。
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公开(公告)号：US4217758A
公开(公告)日：1980-08-19
申请号：US962275
申请日：1978-11-20
CPC分类号： B60T13/143 , B60T13/148
摘要： A hydraulic brake booster is disclosed which includes an integral accumulator to provide a fluid pressure source for emergency failsafe braking. The accumulator includes a bore defined within the booster housing, and a piston slidably mounted in the bore which divides the latter into a pair of fluid compartments between opposite ends of the piston and corresponding ends of the bore. One of the compartments is communicated to the booster inlet port so that the compartment is charged with fluid pressure whenever the pressure level at the inlet port is above some predetermined low value. In one embodiment of the invention, the other compartment is communicated to the fluid pressure reservoir, and a relief valve is carried within the piston which controls flow of fluid between the two compartments. In the other embodiment of the invention, the relief valve is installed in the passage communicating the inlet port to the one compartment, so that when the fluid pressure level in the one compartment reaches a predetermined value, the one compartment is vented to the inlet port. Therefore, when the pressure level in the one compartment reaches some predetermined, relatively high value, the relief valve opens to vent the one compartment, thereby limiting the pressure level in the one compartment to the predetermined level. When a failure occurs in the primary pressure source which normally operates the booster, communication between the pressure chamber and the one compartment is opened, to use the fluid pressure content of the latter to operate the booster.
摘要翻译： 公开了一种液压制动助力器，其包括一体式的蓄能器以提供用于紧急故障保护制动的流体压力源。 蓄能器包括限定在增压器壳体内的孔，以及可滑动地安装在孔中的活塞，其将后者分成在活塞的相对端部和孔的对应端部之间的一对流体隔室中。 其中一个隔间与增压器入口连通，以便每当入口处的压力水平高于某一预定的低值时，隔室就会充满流体压力。 在本发明的一个实施例中，另一隔室与流体压力储存器连通，并且在活塞内承载安全阀，以控制两个室之间的流体流动。 在本发明的另一实施例中，安全阀安装在将入口连通到一个隔室的通道中，使得当一个隔室中的流体压力水平达到预定值时，一个隔室被排放到入口 。 因此，当一个隔室中的压力水平达到预定的相对较高的值时，安全阀打开以排出一个隔室，从而将一个隔室中的压力水平限制到预定水平。 当通常操作助力器的主压力源中发生故障时，打开压力室和一个隔室之间的连通，以使其中的流体压力含量来操作增压器。
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