Heat transfer system with tribofilm on bearing surface
First Claim
1. A heat transfer system comprising a circulation loop of a halocarbon heat transfer fluid, the circulation loop including a compressor or pump that includes bearing contact surfaces lubricated by the heat transfer fluid, including a metal or ceramic contact surface comprising a metal substrate having thereon a layer comprising an oligomer or a polymer, said oligomer or polymer comprising an oligomer or polymer backbone and polar side groups appended to the oligomer or polymer backbone, and a tribofilm.
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Accused Products
Abstract
A heat transfer system is disclosed that includes a circulation loop of a heat transfer fluid that comprises a halocarbon. The circulation loop includes a compressor or pump that includes bearing rolling surfaces in contact with the heat transfer fluid. The bearing contact surface has a substrate a layer thereon that includes a polymer or oligomer having polar side groups and a tribofilm.
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Citations
20 Claims
- 1. A heat transfer system comprising a circulation loop of a halocarbon heat transfer fluid, the circulation loop including a compressor or pump that includes bearing contact surfaces lubricated by the heat transfer fluid, including a metal or ceramic contact surface comprising a metal substrate having thereon a layer comprising an oligomer or a polymer, said oligomer or polymer comprising an oligomer or polymer backbone and polar side groups appended to the oligomer or polymer backbone, and a tribofilm.
Specification