HERMETIC TYPE COMPRESSOR

PROBLEM TO BE SOLVED: To provide a highly-efficient and highly-reliable hermetic type compressor that, in rolling of a ball of a thrust ball bearing, suppresses the generation of wear of raceways on rolling surfaces of an upper race and a lower race where the ball rolls and that prevents an increase...

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Bibliographic Details
Main Author YAGI AKIO
Format Patent
LanguageEnglish
Published 31.10.2013
Subjects
BEARINGS
BLASTING
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide a highly-efficient and highly-reliable hermetic type compressor that, in rolling of a ball of a thrust ball bearing, suppresses the generation of wear of raceways on rolling surfaces of an upper race and a lower race where the ball rolls and that prevents an increase in input.SOLUTION: A plurality of balls 168 are arranged in a holder 170 so that a distance of radius of gyration of the balls 168 is not same as the center of gyration of a shaft 140. A gap is provided between an inner diameter part 176 of the holder 170 and an outer periphery 178 of a main shaft 142. Rolling on the same raceway of each of the balls 168 is greatly reduced, whereby the efficiency is improved by an input reduction and the reliability is also improved by prevention of sliding wear.
Bibliography:Application Number: JP20120096342