Multiple urethane tuned exhaust damper for vertical exhaust

• US 7,678,168 B2
• Filed: 12/14/2006
• Issued: 03/16/2010
• Est. Priority Date: 12/14/2006
• Status: Active Grant

• Current Assignee: PACCAR Incorporated
• Original Assignee: PACCAR Incorporated
• Inventors: Choi, Jin, Auxter, John Thomas, Nabarrete, Reid R., Connelly, William R., Tao, Michikazu Jody
• Primary Examiner(s): Smith; Duane
• Assistant Examiner(s): PHAM, MINH CHAU THI
• Application Number:
  US11/610,929
• Publication Number:
  US 20080142647A1
• Time in Patent Office: 1,188 Days
• Field of Search: 553/853, 55D/IG.28, 55D/IG.30, 248/55, 248/58, 248/62, 248/60, 180/309, 180/89.2, 267/152, 267/165
• US Class Current: 55/385.3
• CPC Class Codes: F01N 13/1822 for fixing exhaust pipes or devices to vehicle body
• CPC Class Codes: F01N 2340/04 characterised by the arrangement of an exhaust pipe, manifold or apparatus in relation to vehicle frame or particular vehicle parts
• CPC Class Codes: F01N 2590/08 for heavy duty applications, e.g. trucks, buses, tractors, locomotives
• CPC Class Codes: F16L 55/035 in the form of specially adapted hangers or supports
• CPC Class Codes: Y10S 55/28 Carburetor attached
• CPC Class Codes: Y10S 55/30 Exhaust treatment

Abstract

The present disclosure provides an exhaust system support assembly (10) for coupling an exhaust member (F) to a vehicle (A). The exhaust system support assembly (10) includes an exhaust member mount assembly (52) couplable to the exhaust member (F), an isolation pin (32) received within at least a portion of the exhaust member mount assembly (52), and at least one resilient member (44,46) disposed between the exhaust member mount assembly (52) and the isolation pin (32). The exhaust system support assembly (10) further includes a pivot assembly (16) couplable to the vehicle (A), wherein the pivot assembly (16) slidably and rotatably receives the isolation pin (32).

Claims

1. An exhaust system support assembly for coupling an exhaust member to a vehicle, comprising:

(a) an exhaust member mount assembly couplable to the exhaust member;

(b) an isolation pin received within at least a portion of the exhaust member mount assembly;

(c) at least one resilient member disposed between the exhaust member mount assembly and the isolation pin; and

(d) a pivot assembly couplable to the vehicle, wherein the pivot assembly is configured to slidably, pivotally, and rotatably receive the isolation pin.

2. The exhaust system support assembly of claim 1, wherein the pivot assembly is a bushing assembly.

3. The exhaust system support assembly of claim 2, wherein the bushing assembly comprises:

(a) upper and lower spherical mount bushings; and

(b) a ball bushing rotatably disposed between the upper and lower spherical mount bushings.

4. The exhaust system support assembly of claim 3, wherein ball bushing includes a plain bearing formed therewithin, and the isolation pin is slidably and rotatably received within the plain bearing.

5. The exhaust system support assembly of claim 1, wherein the exhaust member mount assembly comprises:

(a) at least one exhaust member mounting bracket engageable with the exhaust member;

(b) at least one U-bolt couplable to the exhaust member mounting bracket, wherein the exhaust member is disposable between the exhaust member mounting bracket and the U-bolt; and

(c) an isolation bracket coupled to the at least one U-bolt, the isolation bracket receiving at least a portion of the isolation pin.

6. The exhaust system support assembly of claim 5, wherein the isolation bracket includes first and second transverse projections, the isolation pin passing through the first and second transverse projections.

7. The exhaust system support assembly of claim 6, wherein a first resilient member is disposed between the first transverse projection of the isolation bracket and the isolation pin and wherein a second resilient member is disposed between the second transverse projection of the isolation bracket and the isolation pin.

8. The exhaust system support assembly of claim 1, further comprising upper and lower mount brackets couplable to the vehicle, wherein the pivot assembly is disposed between the upper and lower mount brackets for coupling the pivot assembly to the vehicle.

9. The exhaust system support assembly of claim 1, wherein at least one resilient member is a spherical damper bushing.

13. The exhaust system support assembly of claim 3, wherein ball bushing includes a plain bearing formed therewithin, and the isolation pin is slidably and rotatably received within the plain bearing.

26. The exhaust system support assembly of claim 6, wherein the pivot assembly is disposed between the first and second transverse projections.

10. An exhaust system support assembly for coupling an exhaust member to a vehicle, comprising:

(a) an exhaust member mount assembly, comprising;

(i) at least one exhaust member mount bracket engageable with the exhaust member;

(ii) at least one U-bolt couplable to the exhaust member mounting bracket, wherein the exhaust member is disposable between the exhaust member mounting bracket and the U-bolt; and

(iii) an isolation bracket coupled to the at least one U-bolt, the isolation bracket having first and second transverse projections;

(b) an isolation pin passing through the first and second transverse projections of the isolation bracket;

(c) a first resilient member disposed between the first transverse projection of the isolation bracket and the isolation pin and a second resilient member disposed between the second transverse projection of the isolation bracket and the isolation pin; and

(d) a pivot assembly couplable to the vehicle, wherein the pivot assembly slidably, pivotally, and rotatably receives the isolation pin, wherein the pivot assembly includes a ball bushing.

11. The exhaust system support assembly of claim 10, wherein the pivot assembly is a bushing assembly.

12. The exhaust system support assembly of claim 11, wherein the bushing assembly comprises:

(a) upper and lower spherical mount bushings; and

(b) wherein the ball bushing is rotatably disposed between the upper and lower spherical mount bushings.

14. The exhaust system support assembly of claim 10, further comprising upper and lower mount brackets coupled to the vehicle, wherein the pivot assembly is disposed between the upper and lower mount brackets for coupling the pivot assembly to the vehicle.

15. The exhaust system support assembly of claim 10, wherein the first and second resilient members are spherical damper bushings.

27. The exhaust system support assembly of claim 10, wherein the pivot assembly is disposed between the first and second transverse projections.

16. An exhaust system support assembly for coupling an exhaust member to a vehicle, comprising:

(a) an exhaust member mount assembly couplable to the exhaust member;

(b) an isolation pin received within at least a portion of the exhaust member mount assembly;

(c) means for substantially dampening the vibrations of either the exhaust member or the vehicle; and

(d) means for pivotally and slidably disposing the isolation pin between the exhaust member mount assembly and the vehicle.

17. The exhaust system support assembly of claim 16, wherein the means for pivotally and slidably disposing the isolation pin between the exhaust member mount assembly and the vehicle comprises a bushing assembly coupled to the vehicle, wherein the bushing assembly pivotally and slidably receives the isolation pin.

18. The exhaust system support assembly of claim 17, further comprising upper and lower mount brackets coupled to the vehicle, wherein the bushing assembly is disposed between the upper and lower mount brackets.

19. The exhaust system support assembly of claim 17, wherein the bushing assembly comprises:

(a) upper and lower spherical mount bushings; and

(b) a ball bushing rotatably disposed between the upper and lower spherical mount bushings.

20. The exhaust system support assembly of claim 18, wherein the ball bushing includes a plain bearing formed therewithin, and the isolation pin is slidably and rotatably received within the plain bearing.

21. The exhaust system support assembly of claim 16, wherein the means for substantially dampening the vibrations of either the exhaust member or the vehicle comprises at least one resilient member disposed between the isolation pin and the exhaust member mount assembly.

22. The exhaust system support assembly of claim 21, wherein the exhaust member mount assembly comprises:

(a) at least one exhaust member mounting bracket engageable with the exhaust member;

(b) at least one U-bolt couplable to the exhaust member mounting bracket, wherein the exhaust member is disposable between the exhaust member mounting bracket and the U-bolt; and

(c) an isolation bracket couplable to the at least one U-bolt, the isolation bracket receiving at least a portion of the isolation pin.

23. The exhaust system support assembly of claim 22, wherein the isolation bracket includes first and second transverse projections, the isolation pin passing through the first and second transverse projections.

24. The exhaust system support assembly of claim 23, wherein a first resilient member is disposed between the first transverse projection of the isolation bracket and the isolation pin and a second resilient member is disposed between the second transverse projection of the isolation bracket and the isolation pin.

25. The exhaust system support assembly of claim 24, wherein the at least one resilient member is a spherical damper bushing.

28. The exhaust system support assembly of claim 23, wherein the pivot assembly is disposed between the first and second transverse projections.