Patent · US Active

Heat transfer system with tribofilm on bearing surface

US10641529B2 · kind B2 · utility

2Cited by

9References

20Claims

0Family size

Assignee

CARRIER CORPORATION · US

Inventors

Susanne M. Opalka · Glastonbury, US
Xia Tang · Town of West Hartford, US
Daniel G. Goberman · Town of East Granby, US
Ulf J. Jonsson · South Windsor, US
Zaffir A. Chaudhry · South Glastonbury, US

Key dates

Filing date	Jun 16, 2016
Grant date	May 5, 2020
Priority date	—
Expiry date	Nov 4, 2036

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF25B2500/16
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.