Pumps – Motor driven – Electric or magnetic motor
Patent
1998-04-01
1999-11-16
Dollnar, Andrew M.
Pumps
Motor driven
Electric or magnetic motor
4174103, 4174237, 29596, 62114, 310 45, 427104, 427517, 427519, 522 24, F04B 1703, F25B 3102
Patent
active
059846470
ABSTRACT:
A process for producing a hermetic electric compressor for a refrigerating or air-conditioning apparatus using a refrigerant having a hydrofluorocarbon base which comprises a motor unit, a compressing unit driven by the motor unit and a sealed housing enclosing the motor unit and the compressing unit and stores a refrigeration oil on the bottom of the sealed housing, wherein a solventless varnish comprising a thermosetting resin having at least two (meth)acryloyl groups in one molecule, a low-viscosity vinyl or 1-alkylvinyl monomer having an ether or ester linkage as a reactive diluent and an organic peroxide as a reaction initiator is used as an insulating varnish to insulate and fix the magnet wires of the stator of the motor unit, and the solventless varnish is cured by heating at a temperature of from 153 to 180.degree. C. for from 0.5 to 3.5 hours.
REFERENCES:
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patent: 4401962 (1983-08-01), Su et al.
patent: 4526920 (1985-07-01), Sakashita et al.
patent: 4616407 (1986-10-01), Tamaki et al.
patent: 5110873 (1992-05-01), Kono et al.
patent: 5466492 (1995-11-01), Kiessling et al.
Akahori Yasushi
Fujioka Hirofumi
Hidaka Yukio
Miyamoto Fumiyuki
Ogasawara Shinobu
Dollnar Andrew M.
Mitsubishi Denki & Kabushiki Kaisha
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