Bearing and connecting rod

Patent metadata

Field	Value
Publication number	US-2016290397-A1
Application number	US-201415032775-A
Country	US
Kind code	A1
Filing date	Oct 28, 2014
Priority date	Oct 29, 2013
Publication date	Oct 6, 2016
Grant date	—

Abstract

A bearing may include a substrate and a metallic layer disposed in contact with the substrate. An adhesive layer may be disposed in contact with the metallic layer. A supporting layer may be disposed in contact with the adhesive layer. According to an example, a polymer layer may be disposed in contact with the adhesive layer. According to another example, a polymer layer may be disposed in contact with the supporting layer.

First claim

1 . A bearing, comprising:
a substrate; a metallic layer in contact, on one side, with said substrate; an adhesive layer in contact, on one side, with said metallic layer; a supporting layer in contact, on one side, with said adhesive layer; and a polymer layer in contact, on one side, with said adhesive layer.

2 . The bearing according to claim 1 , wherein said substrate is composed of a low-carbon steel or a medium-carbon steel.

3 . The bearing according to claim 1 , wherein said metallic layer is composed of an aluminium alloy.

4 . The bearing according to claim 3 , wherein said aluminium alloy comprises from 8 to 12 wt % of Sn, from 1 to 3 wt % of Cu, from 3 to 5 wt % of Si, up to 0.7 wt % of Fe, up to 0.1 wt % of Ti, up to 0. 1 wt % of Pb, and a balance of Al and incidental amounts of impurities and other elements.

5 . The bearing according to claim 3 , wherein said aluminium alloy comprises from 17 to 23 wt % of Sn, from 0.5 to 2 wt % of Cu, up to 0.7 wt % of Si, up to 0.3 wt % of Mn, up to 0.7 wt % of Fe, up to 0.1 wt % of Ti, up to 0.1 wt % of Pb, and a balance of Al and incidental amounts of impurities and other elements.

6 . The bearing according to claim 3 , wherein said aluminium alloy comprises from 5 to 8 wt % of Sn, from 0.5 to 2 wt % of Cu, from 1 to 4 wt % of Si, up to 0.3 wt % of Mn, up to 0.7 wt % of Fe, from 0.1 to 0.3 wt % of V, up to 0.1 wt % of Ti, up to 0.1 wt % of Pb, and a balance of Al and incidental amounts of impurities and other elements.

7 . The bearing according to claim 1 , wherein said metallic layer is composed of a copper alloy.

8 . The bearing according to claim 7 , wherein said copper alloy comprises from 6.5 to 9.5 wt % of Sn, from 0.5 to 2 wt % of Ni, up to 5 wt % of Bi, up to 0.7 wt % of Fe, up to 0.5 wt % of P, up to 0.3 wt % of Zn, up to 0.1 wt % of Pb, with a balance of Cu and incidental amounts of impurities and other elements.

9 . The bearing according to claim 7 , characterized in that wherein said copper alloy comprises from 3 to 5 wt % of Sn, up to 1 wt % of Ni, up to 5 wt % of Bi, up to 0.7 wt % of Fe, up to 0.5 wt % of P, up to 0.3 wt % of Zn, up to 0.1 wt % of Pb, with a balance of Cu and incidental amounts of impurities and other elements.

10 . The bearing according to claim 1 , wherein said adhesive layer is composed of an acrylic adhesive.

11 . The bearing according to claim 1 , wherein said adhesive layer is composed of at least one of a silicone-based adhesive and an elastomer adhesive.

12 . The bearing according to claim 1 , wherein said supporting layer is composed of Al.

13 . The bearing according to claim 1 , wherein said supporting layer is composed of an aluminium alloy that comprises up to 3 wt % of Cu, up to 2 wt % of Mn, and a balance of Al and incidental amounts of impurities and other elements.

14 . The bearing according to claim 1 , wherein said supporting layer is composed of a polymer.

15 . The bearing according to claim 1 , wherein said supporting layer is composed of a polymer composition including at least 90% of at least one of PTFE (polytetrafluorethylene (PTFE), polyurethane (PU), and polyester.

16 . The bearing according to claim 1 , wherein said polymer layer is composed of a polymer including a metal filler.

17 . The bearing according to claim 1 , wherein said polymer layer is a polymer composition including a metal filler, and wherein the polymer composition further includes from 6 to 8 wt % of PTFE, from 2 to 4 wt % of a silane, up to 12 wt % of a pigment, from 18 to 22 wt % of Al, and a balance of polyamide imide (PAI) and incidental amounts of impurities and other elements.

18 . A connecting rod, comprising: a first end for mounting a gudgeon pin, a second end for mounting on a crankshaft, and a bearing disposed on at least one of the first end and the second end, wherein the bearing includes:
a substrate; a metallic layer overlaying and in contact with the substrate; an adhesive layer overlaying and in contact with the metallic layer; a supporting layer overlaying and in contact with the adhesive layer; and a polymer layer overlaying and in contact with the supporting layer.

19 . A bearing, comprising:
a substrate; a metallic layer overlaying and in contact with the substrate, wherein the metallic layer has a composition including at least one of an aluminium alloy and a copper alloy; an adhesive layer overlaying and in contact with the metallic layer; a supporting layer overlaying and in contact with the adhesive layer; and a polymer layer overlaying and in contact with the supporting layer, wherein the polymer layer is composed of a polymer including a metal filler.

20 . The bearing according to claim 19 , wherein the supporting layer is composed of at least one of a metal and a polymer.

Assignees

• Mahle Metal Leve Sa
• Mahle Int Gmbh

Inventors

• Vieira De Morais Paulo Roberto
• Cordeiro Sandra

Classifications

• B32B27/36

  comprising polyesters · CPC title

• B32B27/283

  comprising polysiloxanes · CPC title

• B32B7/12

  using interposed adhesives or interposed materials with bonding properties · CPC title

• B32B27/08

  of synthetic resin · CPC title

• B32B27/308

  comprising acrylic (co)polymers · CPC title