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公开(公告)号：US4387934A
公开(公告)日：1983-06-14
申请号：US275669
申请日：1981-06-22
申请人： Glyn P. R. Farr
发明人： Glyn P. R. Farr
CPC分类号： B60T8/4283
摘要： In a braking system a dump valve opens during an imminent skid condition to dump fluid from a brake circuit to a reservoir space. A reservoir piston defining a boundary of the reservoir space then moves in a first bore against a spring so that a control rod, integral with the reservoir piston, allows a ball valve member to engage with its seat to cut-off communication between a master cylinder and a wheel brake. Simultaneously, fluid flows from the reservoir space through an inlet valve to a working chamber of a pump provided in a second bore in the reservoir piston so that a pump piston working in the bore engages with a rotatable eccentric. Fluid is then pumped from the pump chamber, past an outlet valve through an outlet passage in the control rod, and returned to the reservoir space through the open dump valve.
摘要翻译： 在制动系统中，在迫切的滑动条件下打开泄放阀，以将流体从制动回路转储到储存空间。 限定储存空间边界的贮存器活塞然后在第一孔中抵靠弹簧移动，使得与储存器活塞成一体的控制杆允许球阀构件与其座位接合以截断主缸之间的连通 和车轮制动器。 同时，流体从存储器空间通过入口阀流到设置在储存器活塞的第二孔中的泵的工作室，使得在孔中工作的泵活塞与可旋转的偏心件相啮合。 然后从泵室泵送流体，通过出口阀通过控制棒中的出口通道，并通过打开的排放阀返回到储存空间。
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公开(公告)号：US4369863A
公开(公告)日：1983-01-25
申请号：US182502
申请日：1980-08-29
申请人： Glyn P. R. Farr , Colin S. Matthews
发明人： Glyn P. R. Farr , Colin S. Matthews
IPC分类号： F16D51/18 , F16D51/22 , F16D51/30 , F16D65/14 , F16D65/22 , F16D65/46 , F16D65/56 , F16D65/24
CPC分类号： F16D51/22 , F16D51/18 , F16D51/30 , F16D65/22 , F16D65/46 , F16D65/562 , F16D2121/02 , F16D2121/14 , F16D2123/00 , F16D2125/66
摘要： An internal shoe-drum brake is disclosed in which a pair of arcuate shoes can be applied to a rotatable drum by an hydraulic actuation system for normal service braking when the brake acts as a brake of the "two-leading" shoe type and a mechanical actuation system for parking or emergency braking when the brake acts as a brake of the "duo-servo" type. The hydraulic system comprises two hydraulic pistons, each of which acts on the leading end of a respective shoe, and first and second abutments are provided against which the trailing ends of the shoes are adapted to rest. One abutment is fixed but the other abutment includes an auxiliary hydraulic piston which is adapted to be urged against a fixed stop by hydraulic pressure applied to the pistons. The reaction from the trailing end of a respective shoe tends to urge the piston away from the stop, but the area of the piston is sufficient to prevent this happening when the hydraulic pressure is acting on the piston. A floating mechanical strut acts between the shoes to transmit the reaction from the trailing end to the leading end when no hydraulic pressure is applied to the auxiliary piston.
摘要翻译： 公开了一种内部的制动鼓式制动器，其中当制动器用作“双向”型鞋类型的制动器和一种机械式制动器时，一对弓形鞋可以通过用于正常制动的液压致动系统施加到可旋转的滚筒 当制动器作为“双伺服”型的制动器时，用于停车或紧急制动的致动系统。 液压系统包括两个液压活塞，每个液压活塞各自作用在相应的鞋的前端，并且提供第一和第二邻接部，鞋子的后端适于抵靠其抵靠。 一个支座是固定的，但是另一个支座包括辅助液压活塞，该辅助液压活塞适于通过施加到活塞上的液压被推靠在固定止动件上。 来自相应鞋的后端的反应倾向于将活塞推离止动件，但是当液压作用在活塞上时，活塞的面积足以防止这种情况发生。 当没有液压施加到辅助活塞时，浮动的机械支柱作用在鞋之间，以将反作用力从后端传递到前端。
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公开(公告)号：US4313526A
公开(公告)日：1982-02-02
申请号：US112361
申请日：1980-01-15
申请人： Glyn P. R. Farr
发明人： Glyn P. R. Farr
IPC分类号： F16D55/224 , F16D55/00 , F16D55/2265 , F16D55/227 , F16D65/14
CPC分类号： F16D55/22655 , F16D55/227 , F16D65/18 , F16D2055/002 , F16D2121/02
摘要： A disc brake (1) comprises a cylinder (5) slidably mounted on a carrier member (2) for movement parallel to the axis of rotation of the disc. The cylinder (5) is closed at the end adjacent the disc. A bridge member (10) of integral structure, for example forged steel, connects the piston (7) to the outboard brake pad (15). In use, when hydraulic fluid is supplied to the cylinder (5) the cylinder slides on the carrier to apply the inboard brake pad (14) to the disc, and the piston applies a force to the outboard pad (15) via the bridge member (10). The seals (8,9) between the piston (7) and cylinder (5) are isolated from the heat produced by the brake pads, and the bridge member (10) does not require accurate machining and can be designed to provide the maximum strength.
摘要翻译： 盘式制动器（1）包括可滑动地安装在承载构件（2）上的平行于盘的旋转轴线移动的缸（5）。 圆筒（5）在与盘相邻的端部处封闭。 一体式结构的桥构件（10），例如锻钢，将活塞（7）连接到外侧制动衬块（15）。 在使用中，当将液压流体供应到气缸（5）时，气缸在载体上滑动以将内侧制动衬块（14）施加到盘上，并且活塞经由桥构件向外侧衬垫（15）施加力 （10）。 活塞（7）和气缸（5）之间的密封件（8,9）与制动垫片产生的热量隔离开，并且桥接件（10）不需要精确的加工，并且可以设计成提供最大强度 。
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公开(公告)号：US4245868A
公开(公告)日：1981-01-20
申请号：US963159
申请日：1978-11-22
申请人： Glyn P. R. Farr
发明人： Glyn P. R. Farr
CPC分类号： B60T8/425 , B60T13/581 , B60T8/287 , B60T8/4241
摘要： A control valve assembly for a vehicle braking system comprises an inlet, an outlet, a proportioning valve having a control valve member movable to open and close the valve to control communication between the inlet and the outlet, and an inertia-responsive device, preferably a pendulum, responsive to deceleration of the vehicle and operable to reduce the pressure at the outlet after the valve has closed. The inertia-responsive device supplies a signal in dependence upon deceleration, and a servo system applies a force to the control valve member in response to the signal to move the control valve member in a direction to reduce the outlet pressure. The servo system comprises an auxiliary valve operable in response to movement of the inertia-responsive device, a pressure operable member subjected to a pressure in dependence upon operation of said auxiliary valve, and an arrangement coupling the pressure operable member in force-transmitting relation with the control valve member, whereby said control valve member is subjected to a force which is dependent upon the vehicle deceleration.
摘要翻译： 一种用于车辆制动系统的控制阀组件，包括入口，出口，具有可移动以打开和关闭阀门以控制入口和出口之间的连通的控制阀构件的比例阀，以及惯性响应装置，优选为 摆动，响应于车辆的减速度并且可操作以在阀关闭之后降低出口处的压力。 惯性响应装置根据减速度提供信号，并且伺服系统响应于信号使控制阀构件沿一个减小出口压力的方向移动的信号向控制阀构件施加力。 伺服系统包括可响应惯性响应装置的运动操作的辅助阀，根据所述辅助阀的操作受到压力的压力可操作构件，以及将压力可操作构件与力传递关系联接的装置， 控制阀构件，由此所述控制阀构件受到取决于车辆减速度的力。
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公开(公告)号：US4199941A
公开(公告)日：1980-04-29
申请号：US937706
申请日：1978-08-29
申请人： Glyn P. R. Farr
发明人： Glyn P. R. Farr
摘要： In an hydraulic system an unloader valve is located in a line between a pump and an hydraulic accumulator. The unloader valve is operative to prevent the accumulator from being overcharged and to allow the pump to re-charge the accumulator should the pressure stored therein fall below a desired minimum value. The unloader valve incorporates a control valve comprising a spool, and a pressure responsive slave which is operated by fluid pressure under the control of the control valve. Two springs bias the spool into a first position in which pump pressure can be supplied to the accumulator, and the second spring is inoperative when the spool is moved into a second position in which fluid pressure from the accumulator can act on the sleeve to reduce the pump pressure to that of the tank for the pump.
摘要翻译： 在液压系统中，卸载阀位于泵和液压蓄能器之间的管线中。 卸载阀可操作以防止蓄能器过度充电，并且如果存储在其中的压力低于期望的最小值，则允许泵对蓄能器重新充电。 卸载阀包括一个控制阀，该控制阀包括阀芯和压力响应从动件，其在控制阀的控制下由流体压力操作。 两个弹簧将阀芯偏置到第一位置，在该第一位置中可以将泵压力提供给蓄能器，并且当阀芯移动到第二位置时，第二弹簧不起作用，在第二位置，来自蓄能器的流体压力可以作用在套筒上以减小 泵的压力为泵的罐的压力。
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公开(公告)号：US4173866A
公开(公告)日：1979-11-13
申请号：US871448
申请日：1978-01-23
申请人： Glyn P. R. Farr
发明人： Glyn P. R. Farr
CPC分类号： F15B1/027 , B60T13/148 , B62D5/07 , Y10T137/2617
摘要： In an hydraulic system in which an hydraulic accumulator is charged with hydraulic fluid under pressure by means of an hydraulic pump which draws hydraulic fluid from a tank, and an unloader valve disposed in a supply line between the pump and the accumulator is operative to prevent the accumulator from being overcharged and to allow the pump to re-charge the accumulator should the pressure stored therein fall below a desired minimum value, the unloader valve incorporates a control valve, and a pressure responsive slave which is operated by fluid pressure under the control of the control valve. The control valve comprises a valve member which is movable between a first position in which the accumulator is isolated from the slave so that pump pressure is supplied to the accumulator, and a second position in which fluid pressure from the accumulator can act on the slave to render the slave operative to reduce the pump pressure or disable the pump, and a cut-out spring for biassing the valve member at all times towards the first position. The valve member has different effective areas of which a smaller area is subjected to a control pressure dependent upon the pressure in the accumulator and in response to which the valve member can move at a cut-out point from the first position into the second position, and a greater area is subjected to the pressure in the accumulator, at least when the control member is in the second position, to determine a cut-in point at an accumulator pressure less than the pressure in the accumulator at the cut-out point and at which the control member can move from the second position into the first position.
摘要翻译： 在其中液压蓄能器通过液压泵在液压蓄能器中被加载液压泵的液压系统中，液压泵从液压缸中抽取液压流体，并且设置在泵和蓄能器之间的供给管线中的卸载阀可操作以防止 蓄能器被过度充电并允许泵对蓄能器重新充电，如果存储在其中的压力低于期望的最小值，则卸载阀包括控制阀和压力响应从动装置，其通过流体压力在 控制阀。 控制阀包括阀构件，该阀构件可在第一位置和第二位置之间移动，在第一位置，蓄能器与从动装置隔离，从而将泵压力提供给蓄能器;第二位置，来自蓄能器的流体压力可以作用在从动装置上 使从动件可操作以减小泵压力或禁用泵，以及用于朝向第一位置一直偏置阀构件的切断弹簧。 阀构件具有不同的有效区域，其中更小的面积受到取决于蓄能器中的压力的控制压力，并且响应于该构件可以在切出点处从第一位置移动到第二位置， 并且至少当控制构件处于第二位置时，更大的面积受到蓄能器中的压力，以确定蓄能器压力下的切入点小于在切口处的蓄能器中的压力， 控制构件可以在该位置从第二位置移动到第一位置。
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公开(公告)号：US5445447A
公开(公告)日：1995-08-29
申请号：US311901
申请日：1994-09-26
申请人： Glyn P. R. Farr , Philip W. Sheriff
发明人： Glyn P. R. Farr , Philip W. Sheriff
CPC分类号： B60T8/3675 , B60T8/346 , B60T8/4068 , B60T8/4291 , B60T8/5037 , Y10S303/90
摘要： In an hydraulic anti-lock braking system a flow control valve operates with a single-acting solenoid-operated valve (35), and the flow control valve incorporates a spool (17) working in a bore (8) in a housing (7) with the flow directed thorough a passage (20) passing substantially through the centre of the spool (17). A fixed orifice (21) is located at the one end of the spool which defines a chamber (19) for a control spring (18), and a variable orifice is defined between a port (33) in the housing (7) and a metering edge on the input side of an annular groove (24) in the spool (17) and which communicates with the passage (20) in the spool (17).
摘要翻译： 在液压防抱死制动系统中，流量控制阀用单作用电磁阀（35）操作，并且流量控制阀包括工作在壳体（7）中的孔（8）中的阀芯（17） 流体通过基本上穿过卷轴（17）的中心的通道（20）。 固定孔（21）位于阀芯的一端，其限定用于控制弹簧（18）的腔室（19），并且可变孔口限定在壳体（7）中的端口（33）和 在阀芯（17）中的环形槽（24）的输入侧上的计量边缘并与阀芯（17）中的通道（20）连通。
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公开(公告)号：US4988148A
公开(公告)日：1991-01-29
申请号：US317780
申请日：1989-03-02
IPC分类号： B60T8/1761 , B60T8/42 , B60T8/50
CPC分类号： B60T8/5006 , B60T8/4291 , B60T8/5037
摘要： In an hydraulic anti-lock braking system a modulator incorporates a valve responsive to anti-lock signals, a flow valve, and an expansion chamber to which fluid is relieved from a brake in an anti-lock mode. The flow valve is arranged so that the output from a pump is shared between the brake and the master cylinder, and a restrictor located in parallel with the flow valve is adapted to attenuate the pressure oscillations of the system.
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公开(公告)号：US4929037A
公开(公告)日：1990-05-29
申请号：US317937
申请日：1989-03-02
申请人： Glyn P. R. Farr
发明人： Glyn P. R. Farr
IPC分类号： B60T8/1761 , B60T8/42 , B60T8/50
CPC分类号： B60T8/5006 , B60T8/4291 , B60T8/5037
摘要： In a hydraulic anti-lock braking system a modulator incorporates a solenoid-operated valve responsive to anti-lock signals, a re-application valve and an expansion chamber to which fluid relieved from the brake in an anti-lock mode. The solenoid-operated valve determines the pressure in a control chamber, a poppet valve controls communication between the master cylinder and the brake, and a restricted connection is provided between the master cylinder and the output from a re-application pump.
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公开(公告)号：US4883327A
公开(公告)日：1989-11-28
申请号：US299402
申请日：1989-01-19
申请人： Glyn P. R. Farr
发明人： Glyn P. R. Farr
CPC分类号： B60T8/5012 , B60T8/4283 , B60T8/4291 , B60T8/5006 , B60T8/5037
摘要： A hydraulic anti-lock braking system incorporates a pump for generating the energy necessary to re-apply a brake automatically after pressure applied to the brake from a master cylinder has first been released to prevent the wheel controlled by that brake from locking. The pump is adapted to pump fluid back both to the brake and to the master cylinder. Pumping the fluid back to the brake achieves a satisfactory pedal feel, and pumping fluid back to the master cylinder ensures the use of a fail-safe re-application of brake pressure.
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