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1. (WO2017203127) BEARING GUIDE DEVICE OF A COMBUSTION PISTON FOR A VARIABLE COMPRESSION RATIO ENGINE
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/203127 International Application No.: PCT/FR2017/051175
Publication Date: 30.11.2017 International Filing Date: 16.05.2017
IPC:
F02B 75/04 (2006.01) ,F01B 9/04 (2006.01)
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
75
Other engines, e.g. single-cylinder engines
04
Engines with variable distances between pistons at top dead-centre positions and cylinder heads
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
B
MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
9
Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to groups F01B1/-F01B7/181
04
with rotary main shaft other than crankshaft
Applicants: MCE 5 DEVELOPMENT[FR/FR]; 10 place Charles Beraudier Immeuble l'Orient 69003 LYON, FR
RABHI, Vianney[FR/FR]; FR
Inventors: BIGOT, Sylvain; FR
PISTER, Maxence; FR
Agent: BREESE, Pierre; FR
Priority Data:
165464824.05.2016FR
Title (EN) BEARING GUIDE DEVICE OF A COMBUSTION PISTON FOR A VARIABLE COMPRESSION RATIO ENGINE
(FR) DISPOSITIF DE GUIDAGE A ROULEMENT D'UN PISTON DE COMBUSTION POUR UN MOTEUR A TAUX DE COMPRESSION VARIABLE
Abstract:
(EN) The invention relates to a bearing guide device of a combustion piston for a variable compression ratio engine. The movement of the combustion piston from a top dead centre to a bottom dead centre drives the movement of a synchronised roller made up of a cylindrical body and a pinion (44) from a first position to a second position relative to first and second racks (46, 37). According to the invention, the first and/or second racks (46, 37) have a different modulus than the modulus of the pinion (44) so that the flanks of the teeth of the pinion (44) engage with the flanks of the teeth of the first and second racks (46, 37) only when the pinion (44) is in the first or second position.
(FR) L'invention porte sur un dispositif de guidage à roulement d'un piston de combustion pour un moteur à taux de compression variable. Le déplacement du piston de combustion d'un point mort haut à un point mort bas, entraîne le déplacement d'un rouleau synchronisé formé d'un corps cylindrique et d'un pignon (44) d'une première position à une seconde position relativement à une première et une seconde crémaillère (46, 37). Selon l'invention, la première et/ou la seconde crémaillère (46, 37) présente un module différent du module du pignon (44) de sorte que les flancs des dents du pignon (44) prennent appui sur les flancs des dents de la première et de la seconde crémaillère (46, 37) uniquement lorsque le pignon (44) occupe la première ou la seconde position.
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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: French (FR)
Filing Language: French (FR)