OUTBOARD MOTOR

• Main Author: OCHIAI KATSUMI
• Format: Patent
• Language: English
• Published: 03.09.2009
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES; COOLING OF MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINES OR ENGINES IN GENERAL; MARINE PROPULSION OR STEERING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; RELATED EQUIPMENT; SHIPS OR OTHER WATERBORNE VESSELS; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To provide an outboard motor capable of inhibiting a temperature increase in a cowling due to heat radiated from a catalyst. SOLUTION: An engine 5 is disposed in a top cowling 302. Burned gas produced in the engine 5 is discharged to the outside via a first exhaust pipe 71, a second exhaust pipe 72, a third exhaust pipe 73, an exhaust passage 70 and an exhaust passage 7. A catalyst is disposed to be housed in the first exhaust pipe 71 and the second exhaust pipe 72. The first exhaust pipe 71 and the second exhaust pipe 72 are disposed in the top cowling 302. A fan 226 is disposed above the catalyst. COPYRIGHT: (C)2009,JPO&INPIT