Metal bead gasket

Patent metadata

Field	Value
Publication number	US-9429102-B2
Application number	US-201214360695-A
Country	US
Kind code	B2
Filing date	Nov 20, 2012
Priority date	Dec 1, 2011
Publication date	Aug 30, 2016
Grant date	Aug 30, 2016

Abstract

A metal bead gasket ( 11 ) with a sealing region ( 12 ) having at least one bead ( 9 ), at least one bracing region ( 13 ) having at least one recess ( 21 ) for receiving a bracing means ( 5 ), in particular a screw, and at least one intermediate region ( 14 ) which connects the sealing region ( 12 ) to the bracing region ( 13 ). The intermediate region ( 14 ) is configured to be more deformationally unstable perpendicularly to the bracing direction ( 4 ) than the sealing region ( 12 ) and/or the bracing region ( 13 ).

First claim

The invention claimed is:

1. A metal bead gasket ( 11 ) comprising:
a sealing region ( 12 ) having at least one bead ( 9 ),
at least one bracing region ( 13 ) having at least one through-hole ( 21 ) for receiving a bracing means ( 5 ), and
at least one intermediate region ( 14 ) which connects the sealing region ( 12 ) to the bracing region ( 13 ),
wherein at least two corrugations ( 15 , 16 ) which ascend in the bracing direction ( 4 ) are formed in the intermediate region ( 14 ) whereby the intermediate region ( 14 ) is more deformationally unstable perpendicularly to the bracing direction ( 4 ) than the sealing region ( 12 ) and/or the bracing region ( 13 ), and
wherein the intermediate region ( 14 ) comprises at least one web between the bracing region ( 13 ) and the sealing region ( 12 ), wherein a length ( 26 ) of the web is greater than a width ( 27 ) of the web.

2. The metal bead gasket as claimed in claim 1 , wherein the sealing region ( 12 ) comprises at least two layers ( 6 , 7 ) which are arranged one above another in the bracing direction ( 4 ), and the intermediate region ( 14 ) comprises at least one layer less than the sealing region ( 12 ).

3. The metal bead gasket as claimed in claim 1 , wherein the sealing region ( 12 ) and the intermediate region ( 14 ) comprise at least one layer ( 6 ).

4. The metal bead gasket as claimed in claim 1 , wherein a respective bracing region ( 13 ) having a recess ( 21 ) is connected to the sealing region ( 12 ) in each case by means of a web.

5. The metal bead gasket as claimed in claim 1 , wherein an angle (α, β, γ, δ, ε) between the web and an imaginary line ( 24 ) from the center of gravity ( 20 ) of the metal bead gasket ( 11 ) to the central point ( 22 ) of the recess ( 21 ), at the bracing region ( 13 ) of which the web begins, lies between 30° and 150°.

6. The metal bead gasket as claimed in claim 5 , wherein an angle (α, β, γ, δ, ε) between the web and an imaginary line ( 24 ) from the center of gravity ( 20 ) of the metal bead gasket ( 11 ) to the central point ( 22 ) of the recess ( 21 ), at the bracing region ( 13 ) of which the web begins, lies between 40° and 140°.

7. The metal bead gasket as claimed in claim 5 , wherein an angle (α, β, γ, δ, ε) between the web and an imaginary line ( 24 ) from the center of gravity ( 20 ) of the metal bead gasket ( 11 ) to the central point ( 22 ) of the recess ( 21 ), at the bracing region ( 13 ) of which the web begins, lies between 50° and 130°.

8. The metal bead gasket as claimed in claim 1 , wherein a first thickness ( 28 ) of the bracing region ( 13 ), measured in the bracing direction ( 4 ), lies between a second thickness ( 29 ) of the intermediate region ( 14 ) and a third thickness of the sealing region ( 12 ), in the unmounted state.

9. The metal bead gasket as claimed in claim 1 , comprising at least one continuous layer ( 6 ), which is manufactured in one piece and which is a component part of the bracing region ( 13 ), of the intermediate region ( 14 ) and of the sealing region ( 12 ).

10. The metal bead gasket as claimed in claim 1 , wherein a ratio between a greatest first diameter ( 17 ) of the bracing region ( 13 ), measured perpendicularly to the bracing direction ( 4 ), and a second diameter ( 18 ) of the recess ( 21 ) for the bracing means ( 13 ) is at most 5.

11. The metal bead gasket as claimed in claim 1 , wherein the bracing means ( 5 ) is a screw.

12. The metal bead gasket as claimed in claim 1 , wherein a ratio between a greatest first diameter ( 17 ) of the bracing region ( 13 ), measured perpendicularly to the bracing direction ( 4 ), and a second diameter ( 18 ) of the recess ( 21 ) for the bracing means ( 13 ) is at most 4.

13. The metal bead gasket as claimed in claim 1 , wherein a ratio between a greatest first diameter ( 17 ) of the bracing region ( 13 ), measured perpendicularly to the bracing direction ( 4 ), and a second diameter ( 18 ) of the recess ( 21 ) for the bracing means ( 13 ) is at most 4.

14. The metal bead gasket as claimed in claim 1 , wherein a ratio between a greatest first diameter ( 17 ) of the bracing region ( 13 ), measured perpendicularly to the bracing direction ( 4 ), and a second diameter ( 18 ) of the recess ( 21 ) for the bracing means ( 13 ) is at most 4.

15. The metal bead gasket as claimed in claim 1 , wherein a ratio between a greatest first diameter ( 17 ) of the bracing region ( 13 ), measured perpendicularly to the bracing direction ( 4 ), and a second diameter ( 18 ) of the recess ( 21 ) for the bracing means ( 13 ) is at most 3.

16. An exhaust-gas turbocharger comprising at least one metal bead gasket ( 3 ) as claimed in claim 1 .

Assignees

• Borgwarner Inc

Inventors

• Janthur Ingo

Classifications

• F16J15/0825 Primary

  laminated · CPC title

• F02F11/002

  involving cylinder heads · CPC title

• F02F11/00 Primary

  Arrangements of sealings in combustion engines {(piston rings or ring sealings of similar construction F16J9/00)} · CPC title

• F05D2220/40

  in turbochargers · CPC title