FIELD: engines and pumps.
SUBSTANCE: proposed engine comprises crankshaft 52, compression piston 74 fitted in compression cylinder 68 to slide therein and engaged with crankshaft 52 to reciprocate in intake and compression strokes per one revolution of crankshaft. It includes also adapter channel 78 communicating high pressure gas source with expansion cylinder 68 and fuel injector 90 to force fuel into adapter channel 78. Adapter expansion channel 86 controls communication between adapter channel 78 and expansion cylinder 68. Valve 86 comprises head and stem. Fuel injector 90 comprises set of orifices arranged at injector nozzle and directed to, at least, one target whereto fuel is forced to make, at least, one spray. At least, one target is located above adapter valve head seat 86 and between adapter channel walls 78 and expansion valve rod. Invention covers also design versions and method of fuel injection.
EFFECT: better fuel spray.
27 cl, 21 dwg
