Patent ID: 6032653
Filing Date: 2000-03-07
Classification: F02B,F02D

Abstract:
An internal combustion engine having a plurality of combustion chambers, an air induction system for supplying an air charge to said combustion chambers, a plurality of fuel injectors, each of said fuel injectors supplying fuel to a respective one of said combustion chambers, an exhaust system for discharging a burnt charge from said combustion chambers, means for controlling low range operation of said engine by disabling combustion in at least one of said combustion chambers, cranking means for operating said engine for starting running of said engine, a control for controlling operation of said fuel injectors by controlling both timing of injection and duration of injection, said control operating said fuel injectors to provide an enriched mixture to all of said combustion chambers upon initiation of operation of said cranking means and gradually reducing the enrichment of the mixture over a time period after said engine begins to run to amount called for by actual engine running conditions and regardless of the number of combustion chambers in which combustion is enabled.