Pumps – Motor driven – Electric or magnetic motor
Patent
1986-11-13
1989-03-28
Croyle, Carlton R.
Pumps
Motor driven
Electric or magnetic motor
417902, 228165, 228184, 22826514, 219118, F04B 3912
Patent
active
048159476
ABSTRACT:
A compressor comprises a casing having an aperture, a compressor unit provided in the casing, and an electric motor for driving the compressor unit, the electric motor being provided in the casing together with the compressor unit. An iron joint is mounted to the aperture of the casing and is formed with an electrically conductive metal coating having a corrosion resistance greater than that of iron on the surface thereof. The iron joint is comprised of a cylindrical portion and a conical outer surface portion welded to the edge of the aperture by resistance welding. A pipe for sucking or discharging gas to or from the casing is brazed into the cylindrical portion of the iron joint with a copper brazing material. Further, a compressor assembling method comprises the steps of forming an electrically conductive metal coating with a corrosion resistance greater than that of iron on the surface of an iron joint, brazing a pipe to the iron joint with a copper brazing material, and welding the iron joint to an aperture formed in the wall of a compressor casing by resistance welding.
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Fujii Eiichiro
Hanada Morio
Okoma Kaoru
Croyle Carlton R.
Kabushiki Kaisha Toshiba
Szczecina Jr. Eugene L.
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