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Washer for reducing noise and system for reducing noise of wastegate valve apparatus by using the same

  • US 9,297,297 B2
  • Filed: 08/31/2012
  • Issued: 03/29/2016
  • Est. Priority Date: 12/01/2011
  • Status: Expired due to Fees
First Claim
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1. A system for reducing noise of a wastegate valve apparatus that comprises a bypass passage connecting an exhaust manifold and an exhaust pipe, a wastegate valve adapted to open and close the bypass passage, an actuator generating power for operating the wastegate valve, and a link unit delivering the power of the actuator to the wastegate valve, wherein the link unit comprises:

  • a first link connected to an operating shaft of the actuator;

    a third link connected to an operating shaft of the wastegate valve;

    a second link provided with a rod disposed between the first link and the third link and connected thereto, wherein the second link includes;

    a rod end ball bearing pivotally connecting the rod and the first link and having a body provided with a penetration hole into which a bolt member is inserted and a ball coupled to the penetration hole; and

    a joint connecting the rod and the third link; and

    a first washer disposed between the rod end ball bearing and the first link and mounted around the bolt member,wherein the first washer includesa support body having an upper portion formed with a hole having a larger diameter than an external diameter of the ball of the rod end ball bearing and an extended portion extended and bent downwardly from a circumference of the hole, andan elastic member disposed between the first link and the support body.

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