METHOD OF OPERATING TWO-STROKE HIGH-OUTPUT DIESEL ENGINE WITH DRIBBLE-FREE EVACUATION, AND TWO-STROKE HIGH-OUTPUT DIESEL ENGINE WITH DRIBBLE-FREE EVACUATION Russian patent published in 2012 - IPC F02B25/04 F02B37/22 F02B29/04 F02D13/02

Abstract RU 2457341 C2

FIELD: engines and pumps.

SUBSTANCE: proposed method consists in using evacuation openings 4 in cylinder intake zone 2 to feed preset amount of air and exhaust valve 7 to discharge combustion gas 6. Fresh air 8 at ambient pressure P₀ is sucked by turbo supercharger 9 running on off gases and fed into cylinder 3 via aforesaid openings 4 as supercharging air 3 at preset supercharging pressure P_c. Flammable gas mix 11 and air 10 and gas 6 is created in cylinder 3. Appliance 12, 121 is used to increase supercharging air pressure P_c. Decreased amount (V_h) of evacuation air is fed in cylinder 3 at higher supercharging air pressure P_c. Appliance is used to control coolant flow rate in supercharging air cooler so that flammable gas mix temperature, in fact, does not vary.

EFFECT: decreased amount of nitrogen oxides in off-gas.

11 cl, 1 dwg

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RU 2 457 341 C2

Authors

Khehni Tomas

Dates

2012-07-27—Published

2008-02-11—Filed