FIELD: engines and pumps.
SUBSTANCE: two-stroke engine with offset crank gear incorporates cylinders 1, 2 operating in pairs. One cylinder 2 works in pair with injection advance piston while another cylinder 1 operates in pair with injection lag piston. Pistons share common combustion chamber 3. To create lag (advance) angle between pistons in cylinders of pair 1, 2, at least, piston of at least one cylinder incorporates offset crank gear. Said pistons pass their TDC simultaneously.
EFFECT: higher power output per unit weight.
4 dwg
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