Turbocharger assembly and stabilizing journal bearing therefor
US5169242A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1990 |
| Grant date | Dec 8, 1992 |
| Priority date | — |
| Expiry date | Nov 27, 2010 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/24
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
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 provides oil to the bearing interior and exterior adequate for the oil wedge supporting and squeeze film damping functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.