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1. (WO2018220372) VALVE ACTUATORS
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Pub. No.: WO/2018/220372 International Application No.: PCT/GB2018/051476
Publication Date: 06.12.2018 International Filing Date: 31.05.2018
IPC:
F01L 9/02 (2006.01) ,F01L 9/04 (2006.01) ,F01L 1/08 (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
9
Valve-gear or valve arrangements actuated non-mechanically
02
by fluid means, e.g. hydraulic
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
9
Valve-gear or valve arrangements actuated non-mechanically
04
by electric means
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
02
Valve drive
04
by means of cams, camshafts, cam discs, eccentrics, or the like
08
Shape of cams
Applicants:
CAMCON AUTO LIMITED [GB/GB]; St John's Innovation Centre Cowley Road Cambridge Cambridgeshire CB4 0WS, GB
Inventors:
STONE, Roger; GB
Agent:
SHARROCK, Daniel; GB
FORSYTH, Helen; GB
LIPSCOMBE, Martin; GB
ROBERTS, David; GB
WILLETT, Christopher; GB
Priority Data:
1708817.002.06.2017GB
Title (EN) VALVE ACTUATORS
(FR) ACTIONNEURS DE SOUPAPE
Abstract:
(EN) An actuator for operating a poppet valve (30) of an internal combustion engine. The actuator comprises a rotary portion (4) and a body portion (2), and the rotary portion defines a cam surface (50, 60). A cam follower (10) is engaged with the cam surface, and a linkage is coupled to the cam follower at one end and coupled to a valve stem (12) at its other end. The cam surface (50, 60) is shaped such that exertion of a closing force on the valve stem, by a piston of the engine following failure of the actuator for example, causes the cam follower (10) to exert a turning force on the rotary portion (4).
(FR) Actionneur permettant de faire fonctionner une soupape-champignon (30) d'un moteur à combustion interne. L'actionneur comprend une partie rotative (4) et une partie corps (2), et la partie rotative délimite une surface de came (50, 60). Un suiveur de came (10) est en prise avec la surface de came, et un élément de liaison est accouplé au suiveur de came au niveau d'une première extrémité et accouplé à une tige (12) de soupape au niveau de son autre extrémité. La surface de came (50, 60) est façonné de telle sorte que l'exercice d'une force de fermeture sur la tige de soupape, par un piston du moteur suite à une défaillance de l'actionneur par exemple, amène le suiveur de came (10) à exercer une force de rotation sur la partie rotative (4).
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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)