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Pub. No.:    WO/2007/021838    International Application No.:    PCT/US2006/031195
Publication Date: 22.02.2007 International Filing Date: 10.08.2006
F16C 27/00 (2006.01), F04B 17/00 (2006.01)
Applicants: INNOVATIVE TURBO SYSTEMS CORPORATION [US/US]; 845 Easy Street, Unit 102, Simi Valley, CA 93065 (US) (For All Designated States Except US)
Inventors: MCKEIRNAN, Robert, D., Jr.; (US)
Agent: LOWRY, Stuart, O.; Kelly Bauersfeld Lowry & Kelley, LLP, Suite 1650, 6320 Canoga Avenue, Woodland Hills, CA 91367 (US)
Priority Data:
11/202,448 11.08.2005 US
11/456,667 11.07.2006 US
Abstract: front page image
(EN)An improved bearing system is provided for use in high speed rotating machinery such as a turbocharger, wherein a turbocharger shaft is rotatably supported at opposite ends by a pair of angular contact bearings subjected to a predetermined and substantially constant thrust pre-load. The angular contact bearings are carried respectively within a pair of generally cylindrical bearing sleeves which cooperatively define an axially split bearing carrier mounted within a turbocharger housing. A spring reacts between these bearing sleeves for applying a substantially constant axial thrust pre-load transmitted by the bearing sleeves to the angular contact bearings. The mechanical spring thrust pre-load may be supplemented or substituted by an hydraulic axial thrust load attributable to oil circulated through the split bearing carrier.
(FR)L'invention porte sur un palier amélioré d'arbre de machines tournant à vitesse élevée, telles que des turbocompresseurs. Ledit arbre est porté à ses deux extrémités par des paliers à contact angulaire soumis à une précharge de poussée sensiblement constante. Lesdits paliers sont l'un et l'autre portés par une paire de manchons sensiblement cylindriques formant ensemble un support de paliers à fente axiale monté dans le carter du turbocompresseur. Un ressort placé entre lesdits manchons leur applique une précharge de poussée axiale sensiblement constante qu'ils transmettent aux paliers. La précharge de poussée axiale mécanique du ressort peut être accrue ou remplacée par une charge de poussée axiale hydraulique provenant de l'huile traversant le support fendu des paliers.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)