Semi-active heat-exchanging silencer for internal combustion engine has valve to control portion of exhaust gas flowing through exhaust gas guide tube

摘要

The silencer (10) for exhaust gas has a housing (12), an exhaust gas entrance (14), an exhaust gas exit (16), a thermally insulated exhaust gas guide tube (24), and a valve (30) which controls the portion of the exhaust gas flowing through the exhaust gas guide tube. The exhaust gas guide tube may be surrounded by an insulating layer (26).