TWO-CYCLE UNIFLOW SPARK IGNITION ENGINE
PURPOSE:To provide a two-cycle uniflow spark ignition engine having a relatively simple structure, capable of being manufactured at a low cost, increasing the scavenging efficiency, improving the output characteristic, improving the fuel consumption, and reducing the noxious constituents such as HC,...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE:To provide a two-cycle uniflow spark ignition engine having a relatively simple structure, capable of being manufactured at a low cost, increasing the scavenging efficiency, improving the output characteristic, improving the fuel consumption, and reducing the noxious constituents such as HC, CO. CONSTITUTION:A stratified fluid constituted of the air-fuel mixture M and air A sucked during the ascending stroke of a piston 4 is pressurized and accumulated by the piston 4 during the descent stroke of the piston 4, then the pressurized stratified fluid is discharged to the above of the piston 4 as the scavenging fluid to generate a uniflow stream while the air A forming the upper layer precedes at the final stage of the descending strode of the piston 4. |
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