Thrust bearing for turbocharger
A thrust bearing is described for sustaining the thrust load of the rotor shaft of a turbocharger, the thrust bearing having a first and second opposed side surface, comprising: A first groove formed in the first side surface of the thrust bearing for holding lubricating oil supplied to the bearing; at least one first oil passage extending from the groove toward the axis of the rotor shaft; at least one second oil passage communicating with the first oil passage and having a plurality of oil holes connected thereto that extend respectively to a plurality of tapering land portions formed on the first and second side surfaces of the thrust bearing so that the axial thrust bearing clearance decreases in a direction of rotation of the shaft; a first and second leg portion defining a cut out portion formed exclusively in the lower end portion of the thrust bearing; a planar portion formed in the end surface of the thrust bearing along the first and second cut out portion and forming a portion of a closed loop; and a second groove formed between the planar portion and the surfaces on which the shaft bears wherein the oil holes are formed in proximity to a point of maximum thrust clearance of the tapering land portions.
- Assignee:
- Aisin Seiki Kabushiki Kaisha, Kariya
- Patent Number(s):
- US 4639148
- OSTI ID:
- 6876132
- Resource Relation:
- Patent File Date: Filed date 1 Feb 1985
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
INTERNAL COMBUSTION ENGINES
TURBOCHARGERS
BEARINGS
LUBRICATING OILS
ROTATION
ROTORS
SHAFTS
COMPRESSORS
ENGINES
HEAT ENGINES
LUBRICANTS
MACHINE PARTS
MOTION
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
SUPERCHARGERS
330100* - Internal Combustion Engines