Patent ID: 8844276
Filing Date: 2014-09-30
Classification: F01N,F01P,Y02T

Abstract:
1. An exhaust muffler for a general-purpose engine, comprising a muffler main body connected to a cylinder of a general-purpose engine via an exhaust pipe, a partition member that divides the interior of the muffler main body into a first muffler chamber communicating with the exhaust pipe and a second muffler chamber communicating with an exhaust outlet of the muffler main body, and communication means that provides communication between the first muffler chamber and the second muffler chamber, wherein the communication means is formed from an exhaust cooling pipe that is exposed outside the muffler main body while providing communication between the first muffler chamber and the second muffler chamber, and further wherein the exhaust cooling pipe is disposed so that and upstream end thereof extends through one side wall, to which the exhaust pipe is connected, of the muffler main body and opens in the first muffler chamber and a downstream end thereof extends through said one side wall and the first muffler chamber and opens in the second muffler chamber.