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Magnetorheological damper system

  • US 6,953,108 B2
  • Filed: 04/04/2003
  • Issued: 10/11/2005
  • Est. Priority Date: 04/04/2003
  • Status: Active Grant
First Claim
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1. A vibration damping system comprising:

  • a main housing having a magnetorheological damper valve movable within said main housing;

    a reservoir chamber having a magnetorheological electromagnet, said magnetorheological electromagnet selectively energizable to adjust a precharge pressure in said system;

    said main housing and said reservoir being in fluid communication with each other with a magnetorheological fluid;

    a control system;

    said control system including a routine for energizing said magnetorheological damper valve in response to at least one sensed condition of said damping system so as to dampen forces exerted on said damping system; and

    , said routine including a routine for also energizing said magnetorheological electromagnet in response to at least one sensed condition of said damping system so as to substantially prevent cavitation in said damping system over substantially the entire operating range of said damper system.

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