Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2010079623) SPARK IGNITION INTERNAL COMBUSTION ENGINE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/079623 International Application No.: PCT/JP2009/050264
Publication Date: 15.07.2010 International Filing Date: 06.01.2009
Chapter 2 Demand Filed: 05.11.2010
IPC:
F02D 15/04 (2006.01) ,F02D 13/02 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
15
Varying compression ratio
04
by alteration of volume of compression space without changing piston stroke
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
13
Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
02
during engine operation
Applicants:
トヨタ自動車株式会社 TOYOTA JIDOSHA KABUSHIKI KAISHA [JP/JP]; 〒4718571 愛知県豊田市トヨタ町1番地 Aichi 1, Toyotacho, Toyota-shi, Aichi 4718571, JP (AllExceptUS)
秋久大輔 AKIHISA, Daisuke [JP/JP]; JP (UsOnly)
▲吉▼岡 衛 YOSHIOKA, Mamoru [JP/JP]; JP (UsOnly)
Inventors:
秋久大輔 AKIHISA, Daisuke; JP
▲吉▼岡 衛 YOSHIOKA, Mamoru; JP
Agent:
青木篤 AOKI, Atsushi; 〒1058423 東京都港区虎ノ門三丁目5番1号 虎ノ門37森ビル青和特許法律事務所 Tokyo SEIWA PATENT & LAW, Toranomon 37 Mori Bldg., 5-1, Toranomon 3-chome, Minato-ku, Tokyo 1058423, JP
Priority Data:
Title (EN) SPARK IGNITION INTERNAL COMBUSTION ENGINE
(FR) MOTEUR À COMBUSTION INTERNE À ALLUMAGE PAR ÉTINCELLE
(JA) 火花点火式内燃機関
Abstract:
(EN) A spark ignition internal combustion engine comprises a valve-closing time variable mechanism that can alter the closing period of an intake valve after an intake bottom dead point, in which the quantity of intake air supplied into the combustion chamber is principally controlled by altering the valve closing time of the intake valve. When an engine is cold-started, the closing time of the intake valve is advanced as compared with that time during warming operation of the engine. When the engine is cold-started, the mixed air sucked into the combustion chamber is blown back into the combustion chamber, whereby variance of the air fuel ratio occurs among the cylinders. However, according to the present invention, the spark ignition internal combustion engine in which occurrence of variance of the air fuel ratio among the cylinders can be suppressed.
(FR) Un moteur à combustion interne à allumage par étincelle comprend un mécanisme de fermeture de soupape à temps variable permettant de modifier la période de fermeture d'une soupape d'admission après un point mort inférieur d'admission, dans lequel la quantité d'air d'admission fournie dans la chambre de combustion est principalement régulée en modifiant le moment de fermeture de soupape de la soupape d'admission. Lorsqu'un moteur est démarré à froid, le moment de fermeture de la soupape d'admission est avancé par rapport à ce moment pendant l’opération de chauffage du moteur. Lorsque le moteur est démarré à froid, l’air mélangé aspiré dans la chambre de combustion est renvoyé dans la chambre de combustion, provoquant ainsi la variation du rapport air/carburant parmi les cylindres. Toutefois, selon la présente invention, le moteur à combustion interne à allumage par étincelle dans lequel se produit la variation du rapport air/carburant parmi les cylindres peut être supprimé.
(JA) 本発明の火花点火式内燃機関は、吸気下死点以降で吸気弁の閉弁時期を変更可能な可変閉弁時期機構を具備し、燃焼室内に供給される吸入空気量が主に吸気弁の閉弁時期を変えることによって制御される。機関冷間始動時においては、機関温間運転時に比べて吸気弁の閉弁時期が進角される。機関冷間始動時には燃焼室内に吸入された混合気が機関吸気通路内に吹き返されることによって気筒間で空燃比のバラツキが発生するが、本発明の火花点火式内燃機関によれば斯かる気筒間での空燃比のバラツキを抑制することができる。
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (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, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
EP2375033US20110271920CN102272430