1. TWO STROKE ENGINES

2. TWO STROKE ENGINES

3. TWO STROKE ENGINES

4. TWO STROKE ENGINES

5. ADVANTAGES
• DON’T HAVE VALVES ONLY
PORTS(MECHANICALLY
SIMPLER)
• LIGHTER,LESS COST,EASY TO
MAINTAIN
• TWICE POWER B
• MORE COMPACT
• QUIKER IN ACCELERATION
• POWER/WEIGHT RATIO HIGH
• UNIFORM TORQUE
DISADVANTAES
• RUNS HOTTER
• NO DEDICATED LUBRICATION
SYSTEM
• POLLUTION/SMOKY
• MIXING RATIO OIL/GAS -4
OUNCE PER GALON OF GAS
• WASTAGE OF FUEL/AIR(GAS)
THROUGH EXHAUST PORT
• DON’T USE FUEL EFFICENTLY
AND HENCE MORE FUEL
CONSUMPTION

6. TWO STROKE ENGINES

7. TWO STROKE ENGINES
CRANK CASE SCAVENGED LOOP SCAVENGED

8. TWO STROKE ENGINES

9. TWO STROKE ENGINES

10. SCAVENGING TYPES

11. TWO STROKE ENGINES

12. TWO STROKE ENGINES

13. TWO STROKE ENGINES

14. TWO STROKE ENGINES

16. CONCLUSIVE COMPARISION

17. CONCLUSIVE COMPARISION