Heat shield with retention feature

• US 10,640,057 B2
• Filed: 12/05/2016
• Issued: 05/05/2020
• Est. Priority Date: 12/28/2015
• Status: Active Grant

• Current Assignee: L International IP Holdings LLC
• Original Assignee: Lydall Incorporated
• Inventors: Minard, Michael, Cutsinger, Thomas
• Primary Examiner(s): Hwu, Davis D
• Application Number:
  US16/061,602
• Publication Number:
  US 20180370457A1
• Time in Patent Office: 1,247 Days
• Field of Search: 165135
• CPC Class Codes: B60R 13/08 Insulating elements, e.g. for sound insulation sound insulating linings for trains B61D17/185; drivers' cabs for load-carrying vehicles insulated against vibrations or noise B62D33/0604; thermal or acoustic insulation of engines F02B77/11; damping of sounds using compensation by electro-acoustic methods G10K11/178
• CPC Class Codes: B60R 13/0876 for mounting around heat sources, e.g. exhaust pipes
• CPC Class Codes: B60R 2013/0807 Arrangements of fasteners or clips specially adapted therefore
• CPC Class Codes: F01N 13/102 having thermal insulation
• CPC Class Codes: F01N 13/14 having thermal insulation exhaust manifolds F01N13/102
• CPC Class Codes: F01N 13/1811 with means permitting relative movement, e.g. compensation of thermal expansion or vibration
• CPC Class Codes: F01N 13/1822 for fixing exhaust pipes or devices to vehicle body
• CPC Class Codes: F01N 13/1855 the connection being realised by using bolts, screws, rivets or the like
• CPC Class Codes: F01N 2260/20 for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device
• CPC Class Codes: F02B 77/11 Thermal or acoustic insulation

Abstract

According to an aspect, the present embodiments may be associated with a heat shield including a retention feature or member. In an embodiment, the retention member is integrated with the heat shield body and includes a trilobal shaped aperture formed therein. The trilobal shaped aperture is adapted and configured to receive and temporarily retain a fastener. Thus, the heat shield is capable of at least being temporarily held in place prior to the use of permanent installation techniques.

Claims

1. A heat shield, comprising:

a heat shield body; and

at least one retention member integrated with the heat shield body, wherein

the retention member is configured as a trilobal shaped aperture with three resilient tabs at least partially surrounding a central opening, each of the three resilient tabs comprising a scalloped edge including two protuberances and a raised portion positioned between the two protuberances, the retention member being adapted and configured to receive and temporarily retain a fastener, and the three resilient tabs being configured to move between a rest position and a deformed position.

2. The heat shield of claim 1, wherein the central opening in combination with the resilient tabs creates an aperture arrangement that allows for an interference-fit with the fastener.

3. The heat shield of claim 1, wherein the retention member is configured such that the retention of the heat shield body maintains the heat shield body in a semi-stationary position prior to fastening the heat shield.

4. The heat shield of claim 1, wherein the heat shield body is made of one or more layers of material that is aluminum, stainless steel, steel, thermoplastic, nonwoven or combinations thereof.

5. The heat shield of claim 1, wherein the retention member is configured such that the retention of the heat shield body maintains the heat shield body in a semi-stationary position prior to permanently fastening the heat shield to a vehicle.

6. The heat shield of claim 2, wherein the retention member is configured such that the retention of the heat shield body maintains the heat shield body in a semi-stationary position prior to fastening the heat shield to an underbody portion of a vehicle.

7. The heat shield of claim 1, wherein the raised portion extends along a length of the resilient tab.

8. The heat shield of claim 1, further comprising three channels extending radially from the central opening.

9. The heat shield of claim 8, wherein each of the three channels has an inner width and an outer width, the inner width being larger than the outer width.

10. The heat shield of claim 8, wherein a length of each of the three channels is greater than a width of each of the three channels.

11. The heat shield of claim 8, wherein a length of at least one of the three channels is about 2.5 mm to about 10 mm.

12. The heat shield of claim 1, further comprising:

a plate, wherein the retention member is formed in the plate.

13. The heat shield of claim 12, wherein the plate is centrally located on the heat shield body.

14. The heat shield of claim 12, wherein the plate is coextensive with respect to the heat shield body such that the plate and the heat shield body are arranged in the same plane.

15. The heat shield of claim 12, wherein the plate is raised with respect to the heat shield body.

16. The heat shield of claim 15, wherein

the fastener is arranged on an underbody portion of a vehicle, and

the plate is configured to guide, align and position the retention member towards the fastener.

17. The heat shield of claim 12, wherein the plate is detachable from the heat shield body.

18. The heat shield of claim 12, wherein the plate is configured to align the heat shield body, such that the retention member receives the fastener.

19. The heat shield of claim 1, wherein the heat shield body comprises metallic layers.

20. The heat shield of claim 19, wherein the heat shield body comprises an inner nonwoven layer.