Exhaust purifier for vehicle IC engine - has fuel supply to one or more cylinders interrupted below given temp. or for given time from start

The process is for a multi-cylinder combustion engine (10), particularly car engine, comprising a fuel supply system (12, 15) and a reactor or catalyst in the exhaust system where secondary air is introduced in the exhaust gas. The fuel supply to at least one cylinder is interrupted below a pre-dete...

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Bibliographic Details
Main Author SCHOLZ,RAINER
Format Patent
LanguageEnglish
German
Published 26.07.1979
Subjects
BLASTING
COMBUSTION ENGINES
CONTROLLING COMBUSTION ENGINES
ENGINE PLANTS IN GENERAL
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Summary:The process is for a multi-cylinder combustion engine (10), particularly car engine, comprising a fuel supply system (12, 15) and a reactor or catalyst in the exhaust system where secondary air is introduced in the exhaust gas. The fuel supply to at least one cylinder is interrupted below a pre-determined temp. and/or within a pre-determined length of time following engine start-up. The interruption may be overridden when the engine speed drops below a pre-determined value. The engine may have a fuel metering device (12) and for each cylinder a fuel injector (15) with supply line (19). At least one of the lines contains a solenoid valve (20) controlled by a temp. switch (22).
Bibliography:Application Number: DE19782802200