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1. (WO1991009211) TURBOCHARGER BEARING RETENTION AND LUBRICATION SYSTEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/009211 International Application No.: PCT/US1990/002525
Publication Date: 27.06.1991 International Filing Date: 07.05.1990
Chapter 2 Demand Filed: 26.06.1991
IPC:
F01D 25/16 (2006.01) ,F16C 33/66 (2006.01) ,F16C 35/06 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
D
NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
25
Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
16
Arrangement of bearings; Supporting or mounting bearings in casings
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
33
Parts of bearings; Special methods for making bearings or parts thereof
30
Parts of ball or roller bearings
66
Special parts or details in view of lubrication
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
C
SHAFTS; FLEXIBLE SHAFTS; MECHANICAL MEANS FOR TRANSMITTING MOVEMENT IN A FLEXIBLE SHEATHING; ELEMENTS OF CRANKSHAFT MECHANISMS; PIVOTS; PIVOTAL CONNECTIONS; ROTARY ENGINEERING ELEMENTS OTHER THAN GEARING, COUPLING, CLUTCH OR BRAKE ELEMENTS; BEARINGS
35
Rigid support of bearing units; Housings, e.g. caps, covers
04
in the case of ball or roller bearings
06
Mounting of ball or roller bearings; Fixing them onto shaft or in housing
Applicants:
ALLIED-SIGNAL INC. [US/US]; Law Department (C.A. McNally) P.O. Box 2245R Morristown, NJ 07962-2245, US
Inventors:
GUTKNECHT, Daniel, Allen; US
Agent:
ROONEY, Gerard, P.; Allied-Signal Inc. Law Dept. (C.A. McNally) 101 Columbia Road P.O. Box 2245 Morristown, NJ 07962-2245, US
DECKER, Ken, C.; Allied-Signal Inc. Law Department (C.A. McNally) P.O. Box 2245 Morristown, NJ 07962, US
Priority Data:
449,27912.12.1989US
Title (EN) TURBOCHARGER BEARING RETENTION AND LUBRICATION SYSTEM
(FR) SYSTEME DE LUBRIFICATION ET DE RETENUE DE ROULEMENTS DE TURBOCOMPRESSEURS A SURALIMENTATION
Abstract:
(EN) A turbocharger includes a rotating shaft which is supported within the turbocharger center housing (14) by rotational bearing elements. The bearing cartridge is located axially within the housing (14) by a pin (72) which extends through orifices drilled in the center housing (14) and in the bearing outer ring (52). The pin is relatively smooth, so that excursions of the bearing cartridge assembly (24) with the shaft (26) is permitted when the shaft is accelerated through critical rotational speeds. These excursions are damped by lubricating fluid communicated into grooves circumscribing the bearing outer ring (52) through lubrication passages (82, 84) extending through the pin. The lubricating fluid in the grooves communicates into the intersticial space defined between the outer ring (52) of the bearing cartridge assembly and the center housing (14) to thereby dampen the excursions of the bearing cartridge assembly (24).
(FR) Un turbocompresseur à suralimentation comprend un arbre rotatif soutenu à l'intérieur du carter central (14) du turbocompresseur par des roulements à éléments rotatifs. La cartouche du roulement est axialement positionnée dans le carter (14) par une goupille (72) qui traverse des orifices percés dans le carter central (14) et dans l'anneau extérieur (52) du roulement. La goupille est relativement lisse, de sorte que des excursions de l'ensemble de cartouche de roulement (24) avec l'arbre (26) sont possibles lorsque l'arbre accélère à des vitesses critiques de rotation. Ces excursions sont amorties par du fluide lubrifiant transmis à des rainures à la circonférence de l'anneau extérieur du roulement par des passages de lubrification (82, 84) qui traversent la goupille. Le fluide lubrifiant dans les rainures parvient à l'espace interstitiel défini entre l'anneau extérieur (52) de l'ensemble de cartouche de roulement et le carter central (14), de manière à amortir les excursions de l'ensemble de cartouche de roulement (24).
Designated States: AU, BB, BG, BR, CA, FI, HU, JP, KP, KR, LK, MC, MG, MW, NO, RO, SD, SU
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, IT, LU, NL, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CM, GA, ML, MR, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0504138KR1001540970000*AU1990056573