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1. (WO2018176147) ISOLATION DEVICE WITH SELECTED ANGLE BETWEEN SPRING STOP AND DAMPING MEMBER
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2018/176147 International Application No.: PCT/CA2018/050386
Publication Date: 04.10.2018 International Filing Date: 28.03.2018
IPC:
F16D 3/14 (2006.01) ,B60K 25/02 (2006.01) ,F02B 67/06 (2006.01) ,F16D 3/10 (2006.01) ,F16F 15/129 (2006.01) ,F16H 7/20 (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
D
COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
3
Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
02
adapted to specific functions
14
combined with a friction coupling for damping vibration or absorbing shock
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
K
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS; AUXILIARY DRIVES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST, OR FUEL SUPPLY, OF PROPULSION UNITS, IN VEHICLES
25
Auxiliary drives
02
directly from an engine shaft
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
B
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
67
Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
04
of mechanically-driven auxiliary apparatus
06
driven by means of chains, belts, or like endless members
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
D
COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
3
Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
02
adapted to specific functions
10
Couplings with means for varying the angular relationship of two coaxial shafts during motion
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
F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
15
Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
10
Suppression of vibrations in rotating systems by making use of members moving with the system
12
using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
129
characterised by friction-damping means
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
7
Gearings for conveying rotary motion by endless flexible members
18
Means for guiding or supporting belts, ropes, or chains
20
Mountings for rollers or pulleys
Applicants: LITENS AUTOMOTIVE PARTNERSHIP[CA/CA]; 730 Rowntree Dairy Rd. Woodbridge, Ontario L4L 5T7, CA
Inventors: WILLIAMS, Warren, J.; CA
FRANKOWSKI, Marek; CA
XU, Jun; CA
Agent: MILLMAN IP INC.; 401 Bay St. Suite 1220, Box 60 Toronto, Ontario M5H 2Y4, CA
Priority Data:
62/477,43028.03.2017US
Title (EN) ISOLATION DEVICE WITH SELECTED ANGLE BETWEEN SPRING STOP AND DAMPING MEMBER
(FR) DISPOSITIF D'ISOLATION À ANGLE SÉLECTIONNÉ ENTRE UNE BUTÉE DE RESSORT ET UN ÉLÉMENT D'AMORTISSEMENT
Abstract:
(EN) In an aspect, an isolation device is provided for a belt and a component shaft in an engine. The device includes a hub, a pulley, an isolation spring and a damping member that is fixed rotationally relative to the hub and is engageable frictionally with the pulley. Torque transmission through the spring below a selected non-zero torque, irrespective of hub load on the pulley, drives a change in radius of the helical coils of the spring that is sufficiently small that the spring avoids pressing the damping member against the pulley. Torque transmission through the spring above the selected non-zero torque, irrespective of hub load on the pulley, drives a change in radius of the helical coils that is sufficiently large that the isolation spring applies a radial force to press the damping member against the pulley so as to generate frictional damping.
(FR) Dans l'un de ses aspects,l'invention concerne un dispositif d'isolation prévu pour une courroie et un arbre de composant dans un moteur. Le dispositif comprend un moyeu, une poulie, un ressort d'isolation et un élément d'amortissement qui est fixé rotatif par rapport au moyeu et peut venir en prise de manière frictionnelle avec la poulie. La transmission de couple à travers le ressort, au-dessous d'un couple non nul sélectionné, quelle que soit la charge de moyeu sur la poulie, entraîne un changement dans le rayon des spires hélicoïdales du ressort qui est suffisamment petit pour que le ressort évite de presser l'élément d'amortissement contre la poulie. La transmission de couple à travers le ressort, au-dessus du couple non nul sélectionné, quelle que soit la charge du moyeu sur la poulie, entraîne un changement dans le rayon des spires hélicoïdales qui est suffisamment grand pour que le ressort d'isolation applique une force radiale pour presser l'élément d'amortissement contre la poulie de manière à générer un amortissement à friction.
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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, JO, 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)