Patent ID: 6928973
Filing Date: 2005-08-16
Classification: F01N,F01P,F02B,F02M,F23N,Y02T

Abstract:
1. An internal combustion engine having a combustion heater, comprising: a combustion chamber for combusting a fuel; a heating medium circulating between said combustion chamber and an engine-related element, a heat exchange unit for performing a heat exchange between said heating medium and a combustion gas produced in said combustion chamber; means for decreasing a heat exchange rate in said heat exchange unit, said means including a through hole formed at one side end of a combustion gas passageway and making an interior and an exterior of the combustion gas passageway communicate with each other, and a fan for forcibly causing an inflow of the air into the combustion gas passageway via this through hole from outside said combustion heater.