Patent · US Expired

Refrigerant compressor

US5964581A · kind A · utility

32Cited by
9References
31Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 4, 1996
Grant dateOct 12, 1999
Priority date
Expiry dateMar 4, 2016

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S417/902
  • WIPO fieldBasic materials chemistry
  • WIPO sectorChemistry

Abstract

A refrigerant compressor using a refrigerant composed mainly of a fluorocarbon and/or hydrofluorocarbon type refrigerant containing no chlorine and having a critical temperature of 40.degree. C. or higher, and a refrigerating machine oil comprising as base oil an ester oil of one or more fatty acids which contains at least two ester linkages ##STR1## in the molecule and has a viscosity at 40.degree. C. of 2 to 70 cSt and a viscosity at 100.degree. C. of 1 to 9 cSt. The winding wire of the stator of the compressor has a core wire having an enamel coating having a glass transition temperature of 120.degree. C. or higher.

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