1978-02-01

Engines with Stratified Charge 780342

A method of working fuel injection engines with stratified charge and prechamber-torch ignition is presented. Ejection effect has been employed for cleaning the prechamber of burnt gases and filling the same with air-fuel mixture of necessary composition. The ejection effect is produced by the fuel jet injected through the prechamber which makes it possible to scavange the prechamber without the use of third valve. Besides, this method provides necessary stratification of charge along the direction of flow of burnt gases out of the prechamber.Investigations carried out on single cylinder research test bench and on experimental multicylinder engine created by modifying the serially produced automotive engine show that the proposed method of working makes it possible to improve the power and economy parameters of the engine with sharp reduction of toxic components in the exhaust gases at the same time.

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