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Suspension strut for a vehicle

  • US 9,150,076 B2
  • Filed: 09/17/2013
  • Issued: 10/06/2015
  • Est. Priority Date: 07/05/2010
  • Status: Active Grant
First Claim
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1. A strut system comprising:

  • a fluid;

    a strut comprising;

    an inner tube defining an inner cavity, the inner cavity containing a portion of the fluid;

    a secondary tube encircling at least a portion of the inner tube, the secondary tube cooperatively defining an intermediary cavity with the inner tube, the intermediary cavity containing a second portion of the fluid;

    a housing tube encircling at least a portion of the secondary tube, the housing tube cooperatively defining a reservoir cavity with the secondary tube, the reservoir cavity containing a third portion of the fluid;

    a piston disposed within the inner tube and separating the inner cavity into a first volume and a second volume, the piston comprising an aperture through a piston thickness, the aperture fluidly connecting the first volume and the second volume;

    a one-way aperture valve within the aperture that allows fluid flow from the first volume to the second volume;

    a valve plate coupled to the strut, the valve plate including;

    a damping flow path fluidly coupling the intermediary cavity to the reservoir cavity;

    a replenishment flow path fluidly coupling the reservoir cavity to the inner cavity;

    a damper valve within the damping flow path that damps fluid flowing therethrough; and

    a replenishment valve within the replenishment flow path that allows fluid flow from the reservoir cavity to the inner cavity.

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