Method of operating a spark ignited fourstroke engine with indirect injection

摘要

The operating process involves delaying the induction control time under partial load by a crankshaft angle of 30-100 degrees , preferably 40-80 degrees . During the induction phase, fuel is injected into the induction flow and a charge layer is created in the combustion chamber which is maintained at least until closure of the induction valve. Injection should preferably begin after top dead center of the charge exchange.