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    • 5. 发明公开
    • Turbocharger system with turbine bypass valve actuated by multiple-rate fluid pressure actuator
    • 与涡轮机旁通阀A涡轮增压系统,其由具有几批的流体致动的工作缸驱动
    • EP2206901A1
    • 2010-07-14
    • EP10150281.3
    • 2010-01-07
    • Honeywell International Inc.
    • Jeanson ArthurPerrin, Jean-LucBodin, Jean-Yves
    • F02B37/18
    • F02D23/02F02B37/186Y02T10/144
    • A fluid pressure actuator for a turbochargcr system's turbine bypass valve comprises a piston slidable in a cylinder so as to define a chamber containing a compression spring assembly operable to exert a spring force on the piston. The cylinder can be selectively subjected to a vacuum or pressure for exerting a fluid pressure force on the piston in a direction opposite from the spring force. The spring assembly comprises a first spring arranged to be compressed by the piston throughout a first range of motion of the piston in a compression direction, and at least a second spring arranged to be compressed by the piston throughout a second range of motion that is smaller than and co-terminal with the first range of motion but to be uncompressed during an initial part of the first range of motion of the piston in the compression direction.
    • 用于turbochargcr系统的涡轮机旁通阀的流体压力致动器包括活塞滑动在气缸以便限定一个腔室包含一压缩弹簧组件可操作以施加在活塞上的弹簧力。 缸可以选择性地经受真空或压力为从弹簧力相反的方向上施加在活塞上的流体压力。 弹簧组件包括布置成由所述活塞贯穿在压缩方向上的活塞的运动的第一范围被压缩的第一弹簧,以及至少布置在第二弹簧,以通过活塞在整个第二运动范围被压缩所做的是更小的 比和共端与运动但所述第一范围在压缩方向上的活塞的运动的第一范围的初始部分期间未被压缩。