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    • 7. 发明授权
    • Biasing air suspension system for a trailer
    • 用于拖车的偏置空气悬架系统
    • US08720938B2
    • 2014-05-13
    • US13662958
    • 2012-10-29
    • Rodney P. Ehrlich
    • Rodney P. Ehrlich
    • B60G5/00B62D63/06B60G11/27
    • B60G17/0528B60G2300/042B60G2500/204B60G2800/915
    • An air suspension system of a tandem axle assembly for a trailer includes a front axle air spring configured to be coupled to a front axle assembly of the tandem axle assembly and a rear axle air spring configured to be coupled to a rear axle assembly of the tandem axle assembly. The air suspension system further includes an air reservoir in fluid communication with the front axle air spring and the rear axle air spring and a ratio valve in fluid communication with the air reservoir, the front axle air spring, and the rear axle air spring. The ratio valve is positioned between the air reservoir and the front axle air spring. Further, the ratio valve is selectively operable to send a lesser amount of air from the air reservoir to the front axle air spring than to the rear axle air spring.
    • 用于拖车的串联轴组件的空气悬架系统包括前轴空气弹簧,其构造成联接到串联轴组件的前轴组件和后轴空气弹簧,后轴空气弹簧被配置为联接到串联的后桥组件 轴组件。 空气悬架系统还包括与前轴空气弹簧和后轴空气弹簧流体连通的空气储存器和与储气器,前轴空气弹簧和后轴空气弹簧流体连通的比例阀。 比例阀位于储气器和前轴空气弹簧之间。 此外,比例阀可选择性地可操作以从空气存储器向前轴空气弹簧发送较少量的空气,而不是后轴空气弹簧。
    • 9. 发明授权
    • Pilot operated valve with inversion control and pressure hold functions
    • 先导阀,具有反转控制和压力保持功能
    • US07810827B2
    • 2010-10-12
    • US11859594
    • 2007-09-21
    • Brian D. SheehanRandy S. Wise
    • Brian D. SheehanRandy S. Wise
    • B60G11/26
    • B60G17/01933B60G17/0528B60G2400/61B60G2500/204
    • A valve is disclosed for use in a system and process for controlling vehicle loading on a multi-axle vehicle and improving maneuverability. The valve partially exhausts air from an axle air bag when the vehicle is maneuvering at slow speed, reduces the load on the axle, and thus reduces damaging forces that affect tire wear and suspension component wear. The valve is a normally open, pilot operated valve that delivers supply air pressure upon receiving a sustained air pressure input of a pilot signal. Using an inversion function, the valve then dumps the delivery pressure through a high capacity exhaust upon receiving the pressure input of a secondary control signal. The hold function of the valve traps a reduced amount of delivery air pressure by closing the exhaust valve, and the hold function is actuated at a predetermined delivery pressure to trap a volume of air in the associated air suspension system until the valve member is returned to a supply position.
    • 公开了一种用于在多轴车辆上控制车辆负载并提高机动性的系统和过程中的阀。 当车辆以低速操纵时,阀门部分地排出来自轴气囊的空气,减轻了车轴上的载荷,从而减少了影响轮胎磨损和悬架部件磨损的破坏力。 该阀是常开的先导操作阀,其在接收到导向信号的持续空气压力输入时输送供气压力。 使用反转功能,阀接收到二级控制信号的压力输入时,通过高容量排气排出输送压力。 阀的保持功能通过关闭排气阀而捕集减少的输送空气压力,并且保持功能以预定的输送压力被致动以将一定体积的空气捕获到相关联的空气悬架系统中,直到阀构件返回到 供应位置。