FIELD: mechanical engineering; compression ignition internal combustion engines.
SUBSTANCE: proposed prechamber of internal combustion engine contains space communicating with main combustion chamber through bypass channel. It is mounted on outer part of cylinder block head and is provided with space built-in atomizing nozzle, and bypass channel is made in form of shaped de Laval nozzle. Inlet section of bypass channel has generatrix in form of smooth curve whose form is found from Vitoshinsky relation, and conjugation of inlet and outlet sections is made to arc of ellipse.
EFFECT: provision of operation of internal combustion engines of lean liquid fuel-air mixture and gas-air mixtures, reduced consumption of diesel fuel, low toxicity of exhaust gases, facilitated servicing and low cost.
2 cl, 1 dwg
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