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公开(公告)号：US08100221B2
公开(公告)日：2012-01-24
申请号：US11999884
申请日：2007-12-07
IPC分类号： B62D5/08
CPC分类号： B62D5/0837 , B62D5/065
摘要： A center-closed power steering system provides power steering assistance in engine-off conditions for reduced fuel consumption. The power steering system includes a hydraulic pump mechanically driven by the engine, a high pressure accumulator, a steering gearbox fluidly connected to the accumulator, and a center closed valve mechanically connected to a driver-operated steering wheel. The valve is configured to selectively control flow of pressurized fluid from the accumulator to the steering gearbox to provide power steering assistance. The inner shaft of the rotary center-closed valve is provided with a cavity with V-shaped notches on the transition surfaces on lands configured to sealingly engage the inner surface of the valve outer sleeve, in order to provide a smooth transition in flow for power steering assistance, and a better driver feel.
摘要翻译： 中央关闭的动力转向系统在发动机关闭条件下提供动力转向辅助以减少燃料消耗。 动力转向系统包括由发动机机械驱动的液压泵，高压蓄能器，流体连接到蓄能器的转向齿轮箱，以及机械地连接到驾驶员操纵的方向盘的中心关闭阀。 阀被配置成选择性地控制加压流体从蓄能器到转向齿轮箱的流动，以提供动力转向辅助。 旋转中心关闭阀的内轴设置有在凸台上的过渡表面上具有V形凹口的空腔，其配置成密封地接合阀外套筒的内表面，以便为流动提供平稳的过渡功率 转向助力和更好的司机感觉。
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公开(公告)号：US20080135325A1
公开(公告)日：2008-06-12
申请号：US11999884
申请日：2007-12-07
CPC分类号： B62D5/0837 , B62D5/065
摘要： A center-closed power steering system provides power steering assistance in engine-off conditions for reduced fuel consumption. The power steering system includes a hydraulic pump mechanically driven by the engine, a high pressure accumulator, a steering gearbox fluidly connected to the accumulator, and a center closed valve mechanically connected to a driver-operated steering wheel. The valve is configured to selectively control flow of pressurized fluid from the accumulator to the steering gearbox to provide power steering assistance. The inner shaft of the rotary center-closed valve is provided with a cavity with V-shaped notches on the transition surfaces on lands configured to sealingly engage the inner surface of the valve outer sleeve, in order to provide a smooth transition in flow for power steering assistance, and a better driver feel.
摘要翻译： 中央关闭的动力转向系统在发动机关闭条件下提供动力转向辅助以减少燃料消耗。 动力转向系统包括由发动机机械驱动的液压泵，高压蓄能器，流体连接到蓄能器的转向齿轮箱，以及机械地连接到驾驶员操纵的方向盘的中心关闭阀。 阀被配置成选择性地控制加压流体从蓄能器到转向齿轮箱的流动，以提供动力转向辅助。 旋转中心关闭阀的内轴设置有在凸台上的过渡表面上具有V形凹口的空腔，其被构造成密封地接合阀外套筒的内表面，以便为动力流动提供平稳过渡 转向助力和更好的司机感觉。
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3.发明授权Hydraulically intensified high pressure fuel system for common rail application 失效用于共轨应用的液压强化高压燃油系统公开(公告)号：US06786205B2
公开(公告)日：2004-09-07
申请号：US10337587
申请日：2003-01-08
IPC分类号： F02M3304
CPC分类号： F02M59/466 , F02M59/08 , F02M59/105 , F02M63/0015 , F02M63/0045 , F02M63/0064 , F02M63/0225
摘要： A common rail intensifier fuel injection system includes a plurality of fuel injectors respectively associated with cylinders of an internal combustion engine. A common rail supplies fuel at an intensified pressure to the fuel injectors and receives the fuel at the intensified pressure, alternately, from at least two fuel pressure intensifying circuits. At least one of the fuel pressure intensifying circuits includes a fuel pressure intensifier having an operating chamber for receiving and discharging an operating fluid, and a fuel chamber of a diameter smaller than that of the operating chamber for receiving fuel at a low pressure from the fuel supply and discharging the fuel at the intensified pressure into one of the fuel pressure intensifying circuits. A control valve, in a first position, connects the operating fluid source with the operating chamber of the fuel pressure intensifier and, in a second position, connects the operating chamber of the fuel pressure intensifier with a drain. A controller switches the control valve between the first and second positions and switches the supply of fuel at the intensified pressure, to the common rail, between the various fuel pressure intensifying circuits.
摘要翻译： 共轨增压器燃料喷射系统包括分别与内燃机的气缸相关联的多个燃料喷射器。 共轨为燃料喷射器提供加压的燃料，并且以增强的压力接收燃料，或者从至少两个燃料压力增压回路接收燃料。 燃料压力增强电路中的至少一个包括燃料压力增压器，其具有用于接收和排出工作流体的操作室，以及直径小于操作室的燃料室，用于接收来自燃料的低压燃料 在强化压力下将燃料供给和排出到燃料压力增强电路之一中。 在第一位置的控制阀将工作流体源与燃料增压器的操作室连接，并且在第二位置将燃料增压器的操作室与排水管连接。 控制器在第一和第二位置之间切换控制阀，并且在增压的压力下将燃料供应切换到各个燃料压力增强回路之间的共轨。
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