FIELD: engines and pumps.
SUBSTANCE: in gasoline engine with increased compression degree the outlet phase is ended several degrees prior to upper dead point (UDP), and two inlet valves (gasoline and air) have different phases. Air valve is opened prior to UDP, and gasoline valve is opened in several degrees after UDP, thus preventing the gasoline passage to the outlet system because the blowdown of combustion chamber is not performed with combustible mixture, but with air.
EFFECT: higher engine efficiency.
1 dwg
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