EXHAUST MINUTE-PARTICLE DISPOSING APPARATUS OF INTERNAL-COMBUSTION ENGINE

摘要

PURPOSE:To obviate the necessity of an air pump installed independently by connecting an intake passage subsequent to the compressor outlet of a supercharger and an exhaust passage upstream from a trap through a secondary-air feeding passage equipped with a flow-rate control valve. CONSTITUTION:An intake passage 21 subsequent to the compressor 14 outlet of a supercharger 13 and an exhaust passage 18 upstream from a trap 19 are connected through a secondary-air feeding passage 22. In said passage 22, a secondary-air control valve 24 is installed to control the amount of feed of the secondary-air into a burner 20. The air which the burner 20 does not need is returned into an intake duct 16 through a secondary-air control passage 25.