FIELD: engines and pumps.
SUBSTANCE: proposed method relates to ICE comprises multi-flow fuel mix feed system including several fuel mix pipelines to feed fuel to different groups of cylinders including, at least, one cylinder. Every said pipeline incorporated, at least, one shutoff valve connected to control device intended for controlled fuel feed into ICE subject to preset operating parameters of the engine. Multi-flow offgas discharge system comprises several appropriate pipelines extending from said different groups of cylinders. Offgas circulation multi-flow system with several offgas pipelines to feed offgas from offgas system to fuel feed system. At least one offgas pipeline is branched from, at least the part of offgas pipelined to be brought back to fuel feed system. In compliance with proposed method, off-gases are circulated with flow crossing whereat offgas pipelines 21, 22 are branched from offgas pipelines 16, 17 of definite flow to be bought back to fuel feed pipelines of another flow. Shutoff elements 11 of separate fuel feed pipelines are controlled so that offgas from pipeline 16, 17 of the other offgas flow, its pipeline not being disconnected for fuel feed, is fed to one fuel feed pipeline disconnected by shutoff element 11, 12, via circulation pipeline 21, 22. Invention covers also device for ICE operation.
EFFECT: increased fraction of circulated offgas, better filling of cylinders.
8 cl, 1 dwg
