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1. (WO2017143340) PRESSURE COMPENSATED EXTERNAL GEAR MACHINE
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Pub. No.: WO/2017/143340 International Application No.: PCT/US2017/018722
Publication Date: 24.08.2017 International Filing Date: 21.02.2017
IPC:
F16H 55/02 (2006.01) ,F16H 55/08 (2006.01) ,F16H 55/17 (2006.01)
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
H
GEARING
55
Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
02
Toothed members; Worms
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
H
GEARING
55
Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
02
Toothed members; Worms
08
Profiling
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
H
GEARING
55
Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
02
Toothed members; Worms
17
Toothed wheels
Applicants:
PURDUE RESEARCH FOUNDATION [US/US]; 1281 Win Hentschel Blvd. West Lafayette, IN 47906-4182, US
Inventors:
VACCA, Andrea; US
DHAR, Sujan; US
THIAGARAJAN, Divya; US
Agent:
DEAN, Natalie, J.; US
Priority Data:
62/296,67018.02.2016US
Title (EN) PRESSURE COMPENSATED EXTERNAL GEAR MACHINE
(FR) MACHINE À ENGRENAGES EXTÉRIEURS À COMPENSATION DE PRESSION
Abstract:
(EN) Devices and systems relating to external gear machines that comprise microsurface shaping on the lateral surfaces of the gear teeth and/or bushing surfaces are provided. Such microsurface shaping may comprise a flat step to linear wedge profile, a flat step to flat step profile, or solely a linear wedge profile. The incorporation of microsurface shaping on the gear teeth and/or bushing plates contributes to improving the lubrication performance within the external gear machine and provides significant benefits, including the improvement of operating efficiency, life, and reliability of the system components. Methods for manufacturing the gear teeth and related bushings are also provided, the methods configured to optimize the overall axial balance within the system.
(FR) L'invention concerne des dispositifs et des systèmes se rapportant à des machines à engrenages extérieurs comprenant un profilage de microsurface sur les faces latérales de la denture et/ou sur les faces des douilles. Un tel profilage de microsurface peut comprendre un profil de marche plate à cale linéaire, un profil de marche plate à marche plate, ou uniquement un profil de cale linéaire. L'incorporation du profilage de microsurface sur la denture et/ou les plaques à douille contribue à améliorer l'efficacité de lubrification à l'intérieur de la machine à engrenages extérieurs et offre des avantages importants, y compris l'amélioration de l'efficacité de fonctionnement, de la durée de vie et de la fiabilité des éléments du système. L'invention concerne également des procédés de fabrication de la denture et des douilles liées, les procédés étant conçus pour optimiser l'équilibre axial global à l'intérieur du système.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)