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

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Original Assignee: Hyundai Motor Company (Hyundai Motor Group), Kia Motors Corporation (Kia Corp.)
• Inventors: Chu, Dong Ho
• Primary Examiner(s): Fristoe, Jr., John K
• Assistant Examiner(s): Rost, Andrew J
• Application Number:
  US13/601,051
• Publication Number:
  US 20130139502A1
• Time in Patent Office: 1,306 Days
• Field of Search: 251/279, 251/337, 251/280, 606/02, 384/49, 411/545, 744/70, 745/95, 403/119, 403/146, 403/149, 403/120, 403/145, 403/147, 403/148, 403/144
• US Class Current: 1/1
• CPC Class Codes: F02B 37/12 Control of the pumps
• CPC Class Codes: F02B 37/18 by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
• CPC Class Codes: F02B 37/186 Arrangements of actuators or linkage for bypass valves
• CPC Class Codes: F16B 43/00 Washers or equivalent devices; Other devices for supporting bolt-heads or nuts circlips F16B21/18; for indicating tensile load F16B31/02; forming a whole with the bolt or nut F16B33/00; locking bolts or nuts by means of a fixed plate or ring, or washer-like resilient plates F16B39/10, F16B39/24
• CPC Class Codes: F16B 5/0241 with the possibility for the connection to absorb deformation, e.g. thermal or vibrational
• CPC Class Codes: F16C 1/00 Flexible shafts flexible shafts in dental machines for boring or cutting A61C1/18; Mechanical means for transmitting movement in a flexible sheathing
• CPC Class Codes: F16C 11/08 with resilient bearings
• CPC Class Codes: F16F 1/00 Springs working with fluid F16F5/00, F16F9/00
• CPC Class Codes: F16F 1/328 with undulations, e.g. wavy springs
• CPC Class Codes: F16F 3/02 with springs made of steel or of other material having low internal friction
• CPC Class Codes: F16K 31/52 with crank, eccentric, or cam
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

A system for reducing noise of a wastegate valve apparatus including a bypass passage, a wastegate valve, an actuator and a link unit delivering the power of the actuator to the wastegate valve, may have a first link connected to the actuator, a third link connected to the wastegate valve, a second link provided with a rod disposed between the first link and the third link, wherein the second link includes a rod end ball bearing having 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, wherein the first washer includes a support body, and an elastic member disposed between the first link and the support body.

Claims

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 includes

a 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, and

an elastic member disposed between the first link and the support body.

2. The system of claim 1, wherein upper and lower portion of the ball protrude from the rod end ball bearing.

3. The system of claim 1, wherein the extended portion is disposed apart from an outer surface of the ball of the rod end ball bearing and is curved downwardly from the circumference of the hole.

4. The system of claim 1, further including a second washer disposed between the rod end ball bearing and a nut coupled to the bolt member.

5. The system of claim 4, wherein the second washer includes:

a plurality of support plates, each of which is formed with a hole having a larger diameter than the exterior diameter of the ball of the rod end ball bearing; and

a wave plate disposed between the support plates and formed with at least one wave.

6. The system of claim 1, wherein the joint and the third link are connected by a coupling member, and

the system further includes a snap ring provided on an end of the joint and fitted around a shaft of the coupling member.