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1. (WO2017134062) VARIABLE ROCKER RATIO SYSTEM FOR A SWITCHABLE ROCKER ARM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/134062 International Application No.: PCT/EP2017/052071
Publication Date: 10.08.2017 International Filing Date: 31.01.2017
IPC:
F01L 13/00 (2006.01) ,F02M 26/01 (2016.01) ,F01L 1/18 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
13
Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
[IPC code unknown for F02M 26/01]
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
1
Valve-gear or valve arrangements, e.g. lift-valve gear
12
Transmitting-gear between valve drive and valve
18
Rocking arms or levers
Applicants:
EATON INTELLIGENT POWER LIMITED [IE/IE]; 30 Pembroke Road Dublin 4, IE
Inventors:
CECUR, Majo; IT
Agent:
EATON IP GROUP EMEA; Route de la Longeraie 7 1110 Morges, CH
Priority Data:
62/289,53801.02.2016US
Title (EN) VARIABLE ROCKER RATIO SYSTEM FOR A SWITCHABLE ROCKER ARM
(FR) SYSTÈME À RAPPORT DE CULBUTEUR VARIABLE POUR UN BRAS DE CULBUTEUR COMMUTABLE
Abstract:
(EN) A discrete switchable variable valve lift (VVL) system constructed in accordance to one example of the present disclosure includes a first switchable VVL rocker arm assembly, a second switchable VVL rocker arm assembly and an actuation assembly. The first switchable VVL rocker arm assembly selectively opens a first valve. The second switchable VVL rocker arm assembly selectively opens a second valve. The actuation assembly includes an actuation shaft rotatably driven by a first motor. The actuation shaft has a first lift cam and a second lift cam. The first and second lift cams selectively move the respective first and second latch pins between the latched and unlatched positions to provide discrete operating conditions. The VVL system further includes a sliding variable rocker ratio system (VRRS) contact arm associated with the first switchable VVL rocker arm assembly that provides a modulated valve lift.
(FR) La présente invention concerne un système de levée de soupape variable (VVL pour Variable Valve Lift) commutable discret construit selon un exemple qui comprend un premier ensemble bras de culbuteur de levée VVL commutable, un second ensemble bras de culbuteur de levée VVL commutable et un ensemble d'actionnement. Le premier ensemble bras de culbuteur de levée VVL commutable ouvre de façon sélective une première soupape. Le second ensemble bras de culbuteur de levée VVL commutable ouvre de façon sélective une seconde soupape. L'ensemble d'actionnement comprend un arbre d'actionnement entraîné en rotation par un premier moteur. L'arbre d'actionnement comporte une première came de levée et une seconde came de levée. Les première et seconde cames de levée déplacent de façon sélective les première et seconde broches de verrouillage entre les positions verrouillée et déverrouillée de sorte à fournir des conditions de fonctionnement discret. Le système de levée VVL comprend en outre un bras de contact de système à rapport de culbuteur variable (VRRS pour Variable Rocker Ratio System) associé au premier ensemble bras de culbuteur de levée VVL commutable qui permet une levée de soupape modulée.
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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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
Also published as:
EP3411568