Variable preload shaft bearing for turbocharger

Patent · Tue Jun 30 04:00:00 EDT 1987

OSTI ID:6299236

Komatsu, H; Yamane, K

This patent describes a bearing structure of a turbocharger for an internal combustion engine, comprising; a stationary bearing housing having at least one fluid passage for conveying a lubricating oil; first and second rolling bearings disposed in the bearing housing for supporting a rotating shaft; a first collar member interposed between the housing and the first bearing and a second collar member interposed between the housing and the second bearing. The first and second bearings are supported by the bearing housing through the first and second collar members, and preloading means disposed-between the first and second collar members. The preloading means form an oil chamber receiving the lubricating oil supplied through the fluid passage of the housing, and pushes each of the first and second collar members with a force whose magnitude is variable in dependence on an oil pressure.

• Assignee: Nissan Motor Co., Ltd.
• Patent Number(s): US 4676667
• OSTI ID: 6299236
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
BEARINGS
COMPRESSORS
ENGINES
FASTENERS
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
LUBRICANTS
LUBRICATING OILS
MACHINE PARTS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
PRESSURE DEPENDENCE
ROLLER BEARINGS
SHAFTS
SUPERCHARGERS
TURBOCHARGERS