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1. (WO2017130660) ENGINE AND ENGINE WORK MACHINE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/130660 International Application No.: PCT/JP2017/000277
Publication Date: 03.08.2017 International Filing Date: 06.01.2017
IPC:
F01N 1/08 (2006.01) ,F01N 3/24 (2006.01) ,F01N 13/00 (2010.01) ,F01N 13/18 (2010.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
1
Silencing apparatus characterised by method of silencing
08
by reducing exhaust energy by throttling or whirling
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
24
characterised by constructional aspects of converting apparatus
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
13
Exhaust or silencing apparatus characterised by constructional features
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
13
Exhaust or silencing apparatus characterised by constructional features
18
Construction facilitating manufacture, assembly or disassembly
Applicants:
工機ホールディングス株式会社  KOKI HOLDINGS CO., LTD. [JP/JP]; 東京都港区港南二丁目15番1号 15-1, Konan 2-chome, Minato-ku, Tokyo 1086020, JP
Inventors:
羽川 達哉 HAGAWA Tatsuya; JP
Priority Data:
2016-01674530.01.2016JP
Title (EN) ENGINE AND ENGINE WORK MACHINE
(FR) MOTEUR ET MACHINE DE TRAVAIL À MOTEUR
(JA) エンジン及びエンジン作業機
Abstract:
(EN) Provided are an engine and an engine work machine in which the exhaust gas temperature at the time of discharge to the outside of a housing can be sufficiently reduced. An engine in which a substantially box-shaped muffler 30 made by joining a partitioning plate 33 with an inner housing 31 and an outer housing 32 is directly secured to a cylinder 21, wherein the center axis of the cylinder 21 is slanted rearward at an angle of θ1. The muffler 30 has the partitioning plate 33 inclined from the cylinder-side upper corner part toward the opposing lower corner part; and the muffler 30 is secured at three points, i.e., two screws near an exhaust port 22, and an attachment screw 18 in the vicinity of the upper corner part. Exhaust gas EX is discharged so as to flow forward along the upper wall surface of the muffler 30 from near the end that is close to the cylinder in the upper surface of the muffler 30, and the exhaust gas is diffused, with the front corner part (curved surface part 32c) being shaped as a curved surface having a large radius of curvature.
(FR) La présente invention porte sur un moteur et sur une machine de travail à moteur pour lesquels la température des gaz d'échappement au moment de leur évacuation à l'extérieur d'un carter peut être suffisamment réduite. Un moteur dans lequel un silencieux (30) sensiblement en forme de boîte formé par assemblage d'une plaque de séparation (33) avec un carter interne (31) et un carter externe (32) est directement fixé à un cylindre (21), l'axe central du cylindre (21) étant incliné vers l'arrière selon un angle (θ1). Le silencieux (30) comporte la plaque de séparation (33) inclinée depuis la partie coin supérieur côté cylindre vers la partie coin inférieur opposé; et le silencieux (30) est fixé en trois points, à savoir, deux vis près d'un orifice d'échappement (22) et une vis de fixation (18) à proximité de la partie coin supérieur. Le gaz d'échappement (EX) est évacué de sorte à s'écouler vers l'avant le long de la surface de paroi supérieure du silencieux (30) depuis un endroit proche de l'extrémité qui est proche du cylindre dans la surface supérieure du silencieux (30), et le gaz d'échappement est diffusé, la partie coin avant (la partie de surface courbée (32c)) se présentant sous la forme d'une surface incurvée ayant un rayon de courbure important.
(JA) ハウジングの外側に排出される時点での排気ガス温度を十分低減できるエンジン及びエンジン作業機を提供する。内側ハウジング31と外側ハウジング32と仕切板33を接合してなる略箱状のマフラー30をシリンダ21に直接固定するエンジンにおいて、シリンダ21の中心線を後方側にθだけ傾けた。マフラー30は、シリンダ側の上側角部から対向する下側角部に向けて傾斜した仕切板33を有し、排気ポート22付近の2本のネジと、上側角部近傍での取付ネジ18の3点で固定される。排気ガスEXは、マフラー30の上面のシリンダに近い端部付近から前方側に向けてマフラー30の上壁面に沿って流れるように排出され、前側の角部(曲面部32c)を大きな曲率半径の曲面状として排気ガスを拡散させる。
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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: Japanese (JA)
Filing Language: Japanese (JA)
Also published as:
CN108603426DE112017000577US20190032531