Self-lubricating articulation element made from a composite material and operating under high dynamic loadings

Patent metadata

Field	Value
Publication number	US-9989096-B2
Application number	US-201314436693-A
Country	US
Kind code	B2
Filing date	Oct 15, 2013
Priority date	Oct 22, 2012
Publication date	Jun 5, 2018
Grant date	Jun 5, 2018

Abstract

The element is formed from the winding of a fabric of small thickness ranging between 20 μm and 150 μm and mixed with a resin containing fillers. The fabric has the form of strips having a width ranging between 5 mm and 200 mm, with the strips being crossed in several layers.

First claim

The invention claimed is:

1. A self-lubricating joint element adapted to operate under high dynamic loads, comprising:
a resin comprising fillers, and
a plurality of superimposed strips of fabric mixed with the resin, such that the joint element is homogeneous across an entire thickness of the joint element,
each strip having a thickness ranging between 20 μm and 150 μm, and a width ranging between 5 mm and 200 mm, said strips being crossed in several layers by filament winding with respect to adjacent strips.

2. The element of claim 1 , wherein each strip has a thickness ranging between 20 μm and 130 μm.

3. The element of claim 1 , wherein a crossing angle of the crossed strips ranges between 10° and 90°.

4. The element of claim 1 , wherein a crossing angle of the crossed strips ranges between 30° and 86°.

5. The element of claim 1 , wherein the fabric comprises a synthetic fabric.

6. The element of claim 1 , wherein the resin comprises epoxy, ester vinyl, polyester, phenolic, or polyimide.

7. The element of claim 1 , wherein the fillers comprise PTFE, MoS2, or graphite.

8. The element of claim 7 , wherein the fillers amount to between 5 and 70% of the volume.

9. The self-lubricating joint element of claim 1 , wherein the joint element is ring-shaped.

10. The self-lubricating joint element of claim 1 , wherein the joint element is capable of operating under dynamic loads greater than 60 MPa.

Assignees

• Hydromecanique & Frottement

Inventors

• Masse Emmanuel
• Blandenet Olivier
• Maurin-Perrier Philippe

Classifications

• F16C17/02

  for radial load only · CPC title

• F16C2208/86

  Epoxy resins · CPC title

• F16C2208/02

  comprising fillers, fibres · CPC title

• F16C33/201 Primary

  Composition of the plastic · CPC title

• C10M103/06

  Metal compounds · CPC title