EXHAUST GAS PIPE STRUCTURE OF ENGINE

摘要

PURPOSE: An exhaust pipe structure of an engine is provided to cool the main pipe and cylinder connection pipes of a vent pipe by injecting air in between a cooling pipe and the vent pipe. CONSTITUTION: An exhaust pipe structure of an engine comprises a main pipe(10), a plurality of cylinder connection pipes(30), and a cooling unit. The main pipe discharges exhaust gas generated from an engine. The cylinder connection pipes connect the main pipe and a plurality of cylinders. The cooling unit comprises a cooling pipe(40) and cools a vent pipe by supplying a cooling fluid to the outer circumference of the vent pipe.