Exhaust gas suppressor
AssigneeNissin Jabara Industries Co., Ltd.
InventorMasafumi Fukumoto
Life of this patent
Estimating the term…
Abstract
An exhaust gas suppressor which suppresses the generation of harmful gases contained in exhaust gases from internal combustion engines, wherein secondary air is efficiently heated to high temperature by a coiled heater tube installed in the exhaust manifold of the internal combustion engine and is added to a mixture of primary air and fuel present in the suction manifold, the mixture being then fed to an eddy generating device which generates eddies in the mixture for complete gasification.
Claims6
An exhaust gas suppressor for internal combustion engines, comprising, a coiled heater tube formed of a metal tube in the form of a bellows, the ends of which extend outwardly through the exhaust manifold for heating secondary air by the heat of exhaust gases in said manifold and are inserted in holes in a heater tube attaching ring which is hermetically sealed and removably installed in a required place in the exhaust manifold, a secondary air introducing tube having an air filter on one end thereof opening to the atmosphere and connected at the other end thereof to one end of said heater tube, a heated secondary air feed tube connected at one end thereof to the other end of said heater tube and communicating at the other end thereof with the suction manifold for supplying secondary air heated by said heater tube to a mixture of primary air and fuel prepared by the carburetor, an eddy generating device disposed in the suction manifold and connected to the other end of said heated secondary air feed tube for eddying said primary air-fuel mixture and heated secondary air added thereto, and an air control valve placed between the ends of said secondary air introducing tube for controlling the amount of heated secondary air to be supplied in relation to the amount of said mixed gas.
Dependencies are inferred from the claim text.