Petrol ignition system in internal combustion engines - projects gaseous jet across sparking plug electrode to increase speed of flame spread

摘要

The system is applicable to engines having one or several cylinders equipped with sparking plugs. The ignition system uses a means which is designed to project a gaseous jet across each spark plug electrode when a spark producing voltage is applied to the sparking plug. The gaseous fit is formed from the products of combustion of the engine. The system also uses a gas accumulator which is connected to the gas projection means. The gas accumulator discharges the combustion products so that the gas jet can be formed. The accumulator is a pressurised reservoir. The reservoir connects orifices in a first and second engine combustion chamber. The orifices are designed to project gas across the spark plug in each chamber.