ELECTRIC MOTOR

PROBLEM TO BE SOLVED: To provide an electric motor compatibly realizing reduction of size and thickness and elongation of acoustic life of a bearing. SOLUTION: The electric motor has a load side bearing part 8 composed of an oil-impregnated sintered alloy bearing 10 in the shape of a short cylinder...

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Bibliographic Details
Main Authors KAMEYAMA MASAKI, DEGUCHI MANABU, UKAI SATOSHI, KAWASAKI HIROTAKA
Format Patent
LanguageEnglish
Published 18.12.2008
Subjects
BEARINGS
BLASTING
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
GENERATION
HEATING
LIGHTING
MECHANICAL ENGINEERING
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:PROBLEM TO BE SOLVED: To provide an electric motor compatibly realizing reduction of size and thickness and elongation of acoustic life of a bearing. SOLUTION: The electric motor has a load side bearing part 8 composed of an oil-impregnated sintered alloy bearing 10 in the shape of a short cylinder to support the load side of a rotary shaft 5, a sintered alloy oil storage cylinder 11 in cylindrical shape in which the bearing 10 is fitted and retained, a bearing periphery member 1c of a housing 1 to hold the peripheral part of the oil storage cylinder 11, a bearing end member 1d of the housing 1 to cover the load side end faces of the oil-impregnated bearing 10 and the oil storage cylinder 11, and a bearing end gap 13a formed as an oil sump positioned between the load side end faces of the oil-impregnated bearing 10 and oil storage cylinder 11 and the bearing end member 1d of the housing 1. COPYRIGHT: (C)2009,JPO&INPIT
Bibliography:Application Number: JP20070153208