ROTATION SUPPORT MECHANISM FOR TURBOCHARGER

PROBLEM TO BE SOLVED: To suppress vibration in operation and improve the durability. SOLUTION: Different material is used for the balls 13 of the second ball bearing 8 from those of the first ball bearing 7, which support a rotary shaft 2 on a bearing housing 6. Specifically, the material of the bal...

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Bibliographische Detailangaben
1. Verfasser:	YAKURA KENJI
Format:	Patent
Sprache:	eng
Schlagworte:	BEARINGS BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To suppress vibration in operation and improve the durability. SOLUTION: Different material is used for the balls 13 of the second ball bearing 8 from those of the first ball bearing 7, which support a rotary shaft 2 on a bearing housing 6. Specifically, the material of the balls 13 of the second ball bearing 8 located on the side of an impeller 4 provides a larger linear expansion coefficient than that of the balls 13 of the first ball bearing 7 located on the side of a turbine 3. Such a construction reduces the contact angle of the second ball bearing 8 in operation and prevents the rolling contact surface of the balls 13 of the second ball bearing from running onto shoulders of the outer raceway and inner raceway, resulting in suppressed vibration and improved durability.