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公开(公告)号：US3955371A
公开(公告)日：1976-05-11
申请号：US524962
申请日：1974-11-18
申请人： Richard C. Bueler
发明人： Richard C. Bueler
IPC分类号： B60T11/224 , F15B7/00
CPC分类号： B60T11/224
摘要： A master cylinder having a secondary piston for absorbing rapid initial pressure increases in proportion to the stroke of the primary piston. The master cylinder includes a housing having a first cylinder formed therein. A first piston is movable within the first cylinder. A second cylinder is formed in the first piston. A second piston is movable within the second cylinder.
摘要翻译： 具有用于吸收快速初始压力的次级活塞的主缸与主活塞的行程成比例地增加。 主缸包括其中形成有第一气缸的壳体。 第一活塞可在第一气缸内移动。 在第一活塞中形成第二圆筒。 第二活塞可在第二气缸内移动。
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公开(公告)号：US4455052A
公开(公告)日：1984-06-19
申请号：US290846
申请日：1981-08-07
申请人： Richard C. Bueler
发明人： Richard C. Bueler
CPC分类号： B60T8/263
摘要： A tractor air brake system including front wheel brake actuators, rear wheel brake actuators, and control valve structure for controlling the service air pressure delivered to the front wheel brake actuators. When a tractor is equipped with this brake system, the control valve structure operates to vary the service air pressure delivered to the front wheel brake actuators relative to that delivered to the rear wheel brake actuators in order to minimize tractor front wheel lock and loss of steering control when operating a tractor-trailer combination and to provide safe stopping when operating the tractor only.
摘要翻译： 一种拖拉机空气制动系统，包括前轮制动致动器，后轮制动器致动器和用于控制输送到前轮制动器致动器的服务空气压力的控制阀结构。 当拖拉机装备有该制动系统时，控制阀结构用于改变传递给前轮制动器致动器的工作空气压力相对于后轮制动器致动器的空气压力，以便最小化拖拉机前轮锁定和转向失去 操作拖拉机 - 拖车组合时的控制，并且仅在操作拖拉机时提供安全停止。
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公开(公告)号：US4410218A
公开(公告)日：1983-10-18
申请号：US273870
申请日：1981-06-15
申请人： Richard C. Bueler
发明人： Richard C. Bueler
摘要： A valve for a tractor air brake system for changing the pressure delivered to air brakes on the rear axle depending on whether the trailor is attached or whether the tractor is operating in the "bob tail" mode. According to the invention, a rear axle ratio control valve provides an automatic selection of input to output ratio in accordance with the presence or absence of trailor emergency pressure. In the ratio control valve, service brake control pressure always acts against a first effective area of a piston for providing a first ratio of input to output. A second effective area of the piston receives pressure with the presence of the trailer emergency so that the ratio of pressure delivered from the valve will be changed. Further in accordance with the invention, a blend-back valve operates at a higher, predetermined pressure range, even when the pressure communication is closed by the absence of the emergency pressure to enable the valve to deliver the maximum pressure at high input pressure.
摘要翻译： 用于拖拉机空气制动系统的阀，用于根据拖车是否附接或拖拉机是否以“吊杆尾”模式运行，改变传递到后桥上的空气制动器的压力。 根据本发明，后轴比例控制阀根据是否存在拖车紧急压力提供输入输出比的自动选择。 在比例控制阀中，工作制动控制压力总是作用在活塞的第一有效区域上，以提供输入与输出的第一比率。 活塞的第二有效区域在拖车紧急情况的存在下接收压力，使得从阀传递的压力比将改变。 此外，根据本发明，即使当由于没有紧急压力而关闭压力连通以使得阀能够在高输入压力下输送最大压力时，回流阀也在较高的预定压力范围内操作。
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公开(公告)号：US4383717A
公开(公告)日：1983-05-17
申请号：US273945
申请日：1981-06-15
申请人： Richard C. Bueler
发明人： Richard C. Bueler
CPC分类号： B60T8/263
摘要： A tractor air brake system including front wheel brake actuators, rear wheel brake actuators, and control valve means for controlling the service air pressure delivered to the front wheel brake actuators. When a tractor is equipped with this brake system, the control valve means operates to vary the service air pressure delivered to the front wheel brake actuators relative to that delivered to the rear wheel brake actuators in order to minimize tractor front wheel lock and loss of steering control when operating a tractor-trailer combination and to provide safe stopping when operating the tractor only.
摘要翻译： 一种拖拉机空气制动系统，包括前轮制动致动器，后轮制动器致动器和用于控制输送到前轮制动器致动器的工作气压的控制阀装置。 当拖拉机装备有该制动系统时，控制阀装置操作以改变传递给前轮制动器致动器的运送空气压力相对于后轮制动器致动器的运送空气压力，以便最小化拖拉机前轮锁定和转向失去 操作拖拉机 - 拖车组合时的控制，并且仅在操作拖拉机时提供安全停止。
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公开(公告)号：US4145091A
公开(公告)日：1979-03-20
申请号：US838371
申请日：1977-09-30
摘要： A dual relay valve for controlling the supply of fluid pressure to two sets of brakes is operated by a single source of control fluid pressure. A solenoid-operated valve, controlled by a skid-control logic circuit isolates and vents the control fluid pressure upon detection of skid conditions.
摘要翻译： 用于控制向两组制动器供应流体压力的双继动阀由单个控制流体压力源操作。 由滑道控制逻辑电路控制的电磁阀在检测到滑移条件时隔离并排出控制液压力。
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