Nanoparticulate based lubricants

Inactive Publication Date: 2008-09-25
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0008]In one aspect, the present disclosure is directed toward a method of making a nanoparticulate based lubricant. The method includes providing solid lubricant material with particles having a size less or equal to about 500 nanometers, and treating the particles to create composite nanoparticles. The composite nanoparticles include the solid lubricant material and at least a second material.
[0009]In another aspect, the present disclosure is directed toward a nanoparticle for lubricant applications. The nanoparticle includes a core made substantially of a first material and having a size less

Problems solved by technology

Although the technique of the '020 patent may be capable of producing nanoparticles below 200 nanometers, this technique may have some limitations.
Additionally, because the '020 patent relies on chemical synthesis to produce the IF nanoparticles, the quantity of the nanoparticles

Method used

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  • Nanoparticulate based lubricants

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Embodiment Construction

[0015]FIG. 1 illustrate exemplary surfaces 10 under frictional contact. These surfaces 10 may be part of a machine that performs some sort of operation associated with an industry. Non limiting examples of surfaces 10 may include, contacting surfaces of a piston and a cylinder within an internal combustion engine, mating surfaces of a transmission gear assembly, etc. A lubricant 20 is disposed between the surfaces 10 under frictional contact. The lubricant 20 may be a substance introduced between the surfaces 10 to reduce the friction and wear therebetween. In some cases, this reduction in friction may be accomplished by the lubricant 20 forming a protective film on the surfaces 10.

[0016]The lubricant 20 may, in some cases, be composed of several different materials. The lubricant 20 may include a liquid such as organic oils (for example, vegetable oils, seed oils and mineral oils), hydrocarbon base oils (for example, fossil fuel based oils), synthetic liquids (for example, hydrogen...

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Abstract

A method of making a nanoparticulate based lubricant is disclosed. The method includes providing solid lubricant material with particles having a size less than or equal to about 500 nanometers, and treating the particles to create composite nanoparticles. The composite nanoparticles includes the solid lubricant material and at least a second material.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is based upon and claims the benefit of priority from U.S. Provisional Application No. 60 / 880,025 to Malshe et al. filed on Jan. 12, 2007, the entire contents of which are incorporated herein by reference.TECHNICAL FIELD[0002]The present disclosure relates generally to lubricants and, more particularly, to lubricants containing nanoparticles of a solid lubricant.BACKGROUND[0003]Lubricants are introduced between contacting (sliding or rolling) surfaces of dynamic systems to reduce the friction and wear therebetween. Lubrication occurs when these moving surfaces are separated by a lubricant film and an applied load is carried by the lubricant. In general, four regimes of lubrication are broadly defined based upon the mechanism by which the lubricant operates to reduce friction between the moving parts. These four regimes are: hydrodynamic lubrication, mixed lubrication, boundary lubrication, and enhanced pressure lubricatio...

Claims

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Application Information

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IPC IPC(8): C10M125/24C10M125/22C10M125/04
CPCC10M141/10C10M171/06C10N2240/04C10N2230/06C10N2220/082C10N2210/04C10N2210/01C10M2201/06C10M2201/065C10M2201/066C10M2219/068C10M2223/02C10M2223/045C10N2210/06C10N2210/02C10N2010/02C10N2010/08C10N2020/06C10N2030/06C10N2040/04C10N2010/12C10N2010/04
Inventor MALSHE, AJAY P.ADHVARYU, ATANUVERMA, ARPANAMCCLUSKEY, PHILIP HUGH
Owner CATERPILLAR INC
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