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1. (WO2007004641) TWO-CYCLE ENGINE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/004641 International Application No.: PCT/JP2006/313298
Publication Date: 11.01.2007 International Filing Date: 04.07.2006
IPC:
F02B 33/12 (2006.01) ,F02B 25/14 (2006.01) ,F02B 25/16 (2006.01) ,F02M 69/00 (2006.01) ,F16H 37/12 (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
33
Engines characterised by provision of pumps for charging or scavenging
02
Engines with reciprocating-piston pumps; Engines with crankcase pumps
06
with reciprocating-piston pumps other than simple crankcase pumps
10
with the pumping cylinder situated between working cylinder and crankcase, or with the pumping cylinder surrounding working cylinder
12
the rear face of working piston acting as pumping member and co-operating with a pumping chamber isolated from crankcase, the connecting-rod passing through the chamber and co-operating with movable isolating member
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
25
Engines characterised by using fresh charge for scavenging cylinders
14
using reverse-flow scavenging, e.g. with both inlet and outlet ports arranged near bottom of piston stroke
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
25
Engines characterised by using fresh charge for scavenging cylinders
14
using reverse-flow scavenging, e.g. with both inlet and outlet ports arranged near bottom of piston stroke
16
the charge flowing upward essentially along cylinder wall opposite the inlet ports
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
M
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
69
Low-pressure fuel-injection apparatus
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
37
Combinations of mechanical gearings, not provided for in groups F16H1/-F16H35/122
12
Gearings comprising primarily toothed or friction gearing, links or levers, and cams, or members of at least two of these three types
Applicants:
LWJ株式会社 LWJ CO., LTD. [JP/JP]; 〒5550001 大阪府大阪市西淀川区佃3丁目16番22号 Osaka 16-22, Tsukuda 3-chome, Nishiyodogawa-ku, Osaka-shi, Osaka 5550001, JP (AllExceptUS)
高地 健 TAKACHI, Ken [JP/JP]; JP (UsOnly)
大貝 秀司 OGAI, Shuji [JP/JP]; JP (UsOnly)
Inventors:
高地 健 TAKACHI, Ken; JP
大貝 秀司 OGAI, Shuji; JP
Agent:
江原 省吾 EHARA, Syogo; 〒5500002 大阪府大阪市西区江戸堀1丁目15番26号 江原特許事務所 Osaka Ehara Patent Office, 15-26, Edobori 1-chome, Nishi-ku, Osaka-shi, Osaka 5500002, JP
Priority Data:
2005-19686205.07.2005JP
Title (EN) TWO-CYCLE ENGINE
(FR) MOTEUR DEUX TEMPS
(JA) 2サイクルエンジン
Abstract:
(EN) A two-cycle engine in which reductions in size and pollution are promoted. The two-cycle engine comprises a cylinder containing a piston so as to be able to reciprocate, a scavenging gas storage chamber covering the lower opening of the cylinder under an enclosed state, an intake section provided in the scavenging gas storage chamber, a scavenging channel allowing the scavenging gas storage chamber to communicate with the cylinder, a connecting rod coupled with the piston and penetrating the scavenging gas storage chamber, a crank mechanism for reciprocating the connecting rod linearly, and a seal portion arranged in an insertion hole for passing the connecting rod in the scavenging gas storage chamber and sealing the scavenging gas storage chamber hermetically while allowing linear reciprocation of the connecting rod. The intake section has a structure for taking outside air into the scavenging gas storage chamber and may be provided with a mechanism for spraying fuel onto a cylinder head.
(FR) Moteur deux temps favorisant des réductions de dimensions et de niveau de pollution. Le moteur deux temps ci-décrit comporte un cylindre qui contient un piston pouvant effectuer un va-et-vient, une chambre de stockage de gaz d’entraînement couvrant l’ouverture basse du cylindre à un état clos, une section admission équipée dans la chambre de stockage de gaz d’entraînement, un canal d’entraînement permettant à la chambre de stockage de gaz d’entraînement de communiquer avec le cylindre, une bielle accouplée au piston et pénétrant dans la chambre de stockage de gaz d’entraînement, un mécanisme de vilebrequin assurant le va-et-vient linéaire de la bielle, et une partie de joint agencée dans un trou d’insertion pour faire passer la bielle dans la chambre de stockage de gaz d’entraînement et fermer hermétiquement la chambre de stockage de gaz d’entraînement tout en permettant un va-et-vient linéaire de la bielle. La section admission possède une structure pour faire entrer de l’air de l’extérieur dans la chambre de stockage de gaz d’entraînement ; elle peut aussi être dotée d’un mécanisme pour vaporiser du carburant sur une culasse.
(JA)  本発明は2サイクルエンジンの小型化と低公害化を促進する。  本発明に係る2サイクルエンジンは、ピストンを往復動可能に収容したシリンダと、シリンダの下部開口を密閉状態で覆った掃気ガス貯留室と、掃気ガス貯留室に設けた吸気部と、掃気ガス貯留室とシリンダを連通する掃気流路と、ピストンに連結され、掃気ガス貯留室を貫通したコンロッドと、コンロッドを直線往復動させるクランク機構と、掃気ガス貯留室においてコンロッドが貫通した挿通孔に配設され、コンロッドの直線往復動は許容するが、掃気ガス貯留室を密封するシール部とを備える。吸気部は外気を掃気ガス貯留室に吸気する構造を備えており、かつ、シリンダヘッドに燃料を噴霧する噴霧機構を設けた構造としてもよい。
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, 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, HU, IE, IS, IT, LT, LU, LV, MC, NL, 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:
EP1900921JPWO2007004641US20090013980CN101006256