AIR-HYBRID ENGINE WITH SPLITTED CYCLE AND METHOD OF ITS OPERATION Russian patent published in 2013 - IPC F02B33/22 F02B41/00 

FIELD: engines and pumps.

SUBSTANCE: air-hybrid engine 10 with splitted cycle comprises rotary crankshaft 16. Compression piston 20 is fitted in compression cylinder 12 to slide therein and is coupled with crankshaft 16. Expansion piston 30 is fitted in expansion cylinder 14 to slide therein and is coupled with crankshaft 16. Adapter channel 22 communicates compression and expansion channels 12 and 14. Adapter channel 22 comprises adapter compression valve 24 (XovrC valve) and adapter expansion valve 26 (XovrE valve) to make a pressure chamber. Air vessel 40 is communicated with adapter channel 22. Valve 42 if air vessel 40 directs selectively airflow in air vessel and therefrom. Engine operates in air expansion and ignition modes (AEF mode). Note here that, in AEF mode, pressure in air vessel 40 makes about 5 absolute bars, or more, primarily, 7 absolute bars, preferably, 10 absolute bars, or higher. Invention covers also method of operation of aforesaid engine.

EFFECT: higher efficiency, decreased harmful emissions.

10 cl, 1 dwg