ENGINE FOR SURFACE TRAVELLING BOAT

• Main Authors: NAKASE RYOICHI, NANAMI MASAYOSHI, MASUKO TETSUYA
• Format: Patent
• Language: English
• Published: 19.06.2001
• Edition: 7
• Subjects: BLASTING; COMBUSTION ENGINES; COMBUSTION 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; 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; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To reduce a space required in a case where an engine for surface travelling boat is mounted on a hull, and ensure a required exhaust pipe length. SOLUTION: This engine 3 for the surface travelling boat is mounted inside the hull 2 in a state in which crankshafts 25, 26 are faced toward a longitudinal direction of the hull 2, and rotates to drive a propeller 4 arranged at a rear part of the hull 2. In the engine 3, an exhaust system is formed so as to extend forward from an exhaust port viewed from a direction perpendicular to the crankshafts 25, 26 of the engine 3, follow to be extendedly arranged to a rear part, and to surround a front side of a cylinder shaft A viewed from the direction of the cylinder shaft A of the engine 3.