Turbocharger assembly and stabilizing journal bearing therefor

Details Turbocharger assembly and stabilizing journal bearing therefor Turbocharger assembly and stabilizing journal bearing therefor

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 17/02 (2006.01) F01D 25/16 (2006.01) F02B 3/06 (2006.01) F02B 75/02 (2006.01)

Patent

CA 2048932

An engine turbocharger, particularly of the two cycle diesel type for railway locomotives and other applications, has a rotor with an overhung compressor supported by a compressor journal bearing and thrust flange combination. The bearing combines a multi (two) lobed offset cylindrical wedge film inner surface with a close clearance squeeze film outer surface that causes the bearing to float laterally in a support member to damp shaft runout while supporting the rotor on load controlling oil wedges. The fixed flange provides thrust control and provides a loose pin connection with the bearing that prevents rotation while permitting its squeeze film damping lateral motion. Particular pressure lubrication means provide oil to the bearing interior and exterior adequate for the oil wedge supporting and squeeze film damping functions.

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