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公开(公告)号：US10449940B2
公开(公告)日：2019-10-22
申请号：US15754432
申请日：2016-09-02
申请人： VHIT S.p.A.
发明人： Leonardo Cadeddu
IPC分类号： B60T13/14 , B60T7/12 , B60T13/24 , B60T13/38 , B60T15/38 , B60T15/42 , B60T17/04 , B60T17/22 , F15B7/08 , F16K31/122
摘要： A pre-filling device for a braking system. The pre-filling device includes a pre-filling channel, a pre-filling pressure being inside the channel when the braking system is in a rest and hydro-boost position, and a mechanical valve configured to be opened following a transition from the rest and hydro-boost position to a working position of the braking system; and a hydraulic valve cooperating with the mechanical valve setting the pre-filling pressure inside the channel. The hydraulic valve includes in a first area, facing the mechanical valve, a hole communicating with the channel, and in a second area, hydraulically isolated from the first area, a preloaded resilient element in a chamber held at atmospheric pressure. The hydraulic valve is configured to be connected or not to be connected, by a reciprocating movement inside the channel, to a hydro-booster device and to keep a predetermined pre-filling pressure upon varying of the hydro-boost pressure.
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公开(公告)号：US20050140206A1
公开(公告)日：2005-06-30
申请号：US11006128
申请日：2004-12-07
申请人： Peter Sturgess
发明人： Peter Sturgess
IPC分类号： B60T11/224 , B60T15/38 , B60T15/40 , E02F1/00 , B60T8/44
CPC分类号： B60T15/40 , B60T11/224 , B60T15/38
摘要： A braking system includes a brake actuator which is moveable in a first direction to cause a brake applying member to apply a braking force to a member to be braked. A master valve includes a piston assembly which upon operation of a brake operating member, directs the hydraulic fluid under pressure to the brake actuator to apply the brake. A charging valve is operable in first and second states. The master valve piston assembly includes a pair of coupled pistons separated by a chamber. In a first state, the charging valve connects a source of pressurized hydraulic fluid to the master valve chamber to move the pistons apart, directing a volume of hydraulic fluid to the brake actuator. In a second state, the charging valve connects the chamber to a lower pressure area to allow the pair of pistons to be moved towards one another by a restoring force.
摘要翻译： 制动系统包括制动器致动器，该致动器可沿第一方向移动，以使制动施加部件向要制动的部件施加制动力。 主阀包括活塞组件，其在制动操作构件的操作时将压力下的液压流体引导到制动器致动器以施加制动。 充气阀可在第一和第二状态下操作。 主阀活塞组件包括一对由腔室隔开的联接活塞。 在第一状态下，充气阀将加压液压流体源连接到主阀室以使活塞间隔开，将一定体积的液压流体引导到制动致动器。 在第二状态下，充气阀将腔室连接到较低压力区域，以允许一对活塞通过恢复力彼此相对移动。
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公开(公告)号：US5226701A
公开(公告)日：1993-07-13
申请号：US789216
申请日：1991-11-07
申请人： Pierre Lebret , Gilbert Kervagoret
发明人： Pierre Lebret , Gilbert Kervagoret
CPC分类号： B60T8/3665 , B60T7/12 , B60T8/4275 , B60T8/4872
摘要： An automatic braking device for a vehicle equipped with at least one fluid circuit connecting a master cylinder (10) to a consumer circuit including at least one brake motor and possessing, furthermore, a pump (30) capable of delivering to the consumer circuit, via a non-return valve (31), fluid under high pressure taken from the master cylinder (10) comprises, in combination, a proportional solenoid valve connected to the consumer circuit and having a regulating outlet (20), during operation in the solenoid valve regulating the pressure of the fluid in the consumer circuit in relation to that of the fluid in the feed circuit of the pump, and a regulating slide (16) arranged between the master cylinder and the feed circuit of the pump in order to regulate the pressure of the fluid in the latter circuit and determine a reference pressure for the solenoid valve.
摘要翻译： 一种用于车辆的自动制动装置，其配备有至少一个流体回路，该至少一个流体回路将主缸（10）连接到包括至少一个制动马达的消费电路，并且还具有能够输送到消费电路的泵（30），经由 止回阀（31），从主缸（10）取出的高压流体包括组合地连接到消耗电路并具有调节出口（20）的比例电磁阀，在电磁阀操作期间 调节消耗电路中的流体的压力相对于泵的进料回路中的流体的压力;以及调节滑块（16），其布置在主缸和泵的进料回路之间，以调节压力 并确定电磁阀的参考压力。
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公开(公告)号：US1832859A
公开(公告)日：1931-11-24
申请号：US48956030
申请日：1930-10-18
发明人： FARMER CLYDE C
CPC分类号： B60T15/185 , B60T15/38 , B60T15/46
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公开(公告)号：US1585774A
公开(公告)日：1926-05-25
申请号：US3315225
申请日：1925-05-27
发明人： FARMER CLYDE C
IPC分类号： B60T15/38
CPC分类号： B60T15/38
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公开(公告)号：US07975715B2
公开(公告)日：2011-07-12
申请号：US11811629
申请日：2007-06-11
申请人： Travis G. Ramler , Andrew Marsh , David Fenzel
发明人： Travis G. Ramler , Andrew Marsh , David Fenzel
CPC分类号： B60T11/34 , B60T15/203 , Y10T137/2544 , Y10T137/7887
摘要： A valve for use in a pneumatic system of a truck-trailer having a source of air under pressure, a reservoir, at least one spring brake unit and a brake service line is provided. The valve includes a housing, a pressure protection valve portion, a spring brake actuation valve portion and an anti-compounding valve portion. The housing has a supply passage in communication with the source of air under pressure. The pressure protection valve portion is disposed within a first chamber of the housing. The first chamber has an inlet in communication with the supply passage and an outlet in communication with the reservoir. The pressure protection valve portion is configured to selectively block the flow of pressurized air from the supply passage to the reservoir through the first chamber. The spring brake actuation valve portion is disposed within a second chamber of the housing.
摘要翻译： 一种用于具有压力空气源的卡车 - 拖车的气动系统的阀，提供了至少一个弹簧制动单元和制动器服务线。 阀包括壳体，压力保护阀部分，弹簧制动器致动阀部分和防复合阀部分。 壳体具有与压力源的空气源连通的供给通道。 压力保护阀部分设置在壳体的第一腔室内。 第一室具有与供应通道连通的入口和与储存器连通的出口。 压力保护阀部分构造成选择性地阻止加压空气从供应通道流到储存器通过第一室。 弹簧制动器致动阀部分设置在壳体的第二腔室内。
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公开(公告)号：US4552411A
公开(公告)日：1985-11-12
申请号：US492318
申请日：1983-05-06
申请人： Josef Hintner
发明人： Josef Hintner
摘要： A pulsating brake accelerating device for an indirectly operating air brake for rail vehicles has a pulsator (12), which is attached to the brake pipe (BP) via a jet (23). The pulsator (12) forms a mixed pressure from two pressures. One of the pressures is formed by the pressure of the brake pipe (BP) via a jet (23) and the other pressure is formed by pressure from a control chamber (QAC) via another jet. At every braking level the pulsator (12) drains mixed pressure pulses off into the atmosphere, while at the same time the brake pipe pressure and the control chamber pressure is lowered via the mixed pressure pulsator (12). The mixed pressure can consist of two valves (14, 15). The control element (4) of the brake accelerator unit can be the emergency brake piston, which monitors several valves, one of which is the pulsator-excitation valve (8).
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公开(公告)号：US4449759A
公开(公告)日：1984-05-22
申请号：US396501
申请日：1982-07-08
申请人： Herbert Eder
发明人： Herbert Eder
CPC分类号： B60T15/42
摘要： A service brake accelerator having a line chamber (3) connected to the main air supply line (1) and a reference pressure chamber (6) connected to the line chamber via a nozzle (7). The line chamber is separated from the reference pressure chamber by a diaphragm piston (5) which is biased by a spring (10) against a valve seat (9) projecting into the reference pressure chamber and restricting a nozzle opening (23) to the inner chamber (24) of a second valve seat (20). A second diaphragm piston (17) is biased against this second valve seat by a spring (21). The space (16) surrounding the second valve seat can be connected, partly throttled, via a nozzle (14), to the line chamber by way of a shut-off valve (12, 13) which opens laterally of the reference pressure chamber upon overbalancing pressure upon the first diaphragm piston; this space is always open to atmosphere via a further nozzle (25). The accelerator operates cyclically and has a safe, stable neutral position between its work cycles and rest position.
摘要翻译： 一种具有连接到主空气供应管线（1）的管线室（3）和经由喷嘴（7）连接到管线室的基准压力室（6）的制动促进器。 线室通过隔膜活塞（5）与参考压力室分隔开，隔膜活塞（5）被弹簧（10）偏压在突出到参考压力室中的阀座（9）上，并将喷嘴开口（23）限制在内 第二阀座（20）的腔室（24）。 第二隔膜活塞（17）通过弹簧（21）偏置在该第二阀座上。 围绕第二阀座的空间（16）可以经由喷嘴（14）部分地节流通过截止阀（12,13）连接到线室，该截止阀（12,13）在基准压力室的侧面开口 在第一隔膜活塞上过度平衡压力; 该空间通过另外的喷嘴（25）总是对大气敞开。 加速器循环运行，在其工作循环和静止位置之间具有安全，稳定的中立位置。
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公开(公告)号：US1986460A
公开(公告)日：1935-01-01
申请号：US54024631
申请日：1931-05-27
发明人： ALDRIDGE THOMAS J
IPC分类号： B60T15/38
CPC分类号： B60T15/38
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