Describe 1st cycle of a 2 stroke Diesel Engine, including angle
1-2 COMPRESSION. 110° BTDC. The EXHAUST VALVE is closed and the piston is moving up the cylinder.
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Describe 2nd cycle of a 2 stroke Diesel Engine, including angle
2-3 INJECTION. 8° BTDC. Just before TDC fuel is injected into the cylinder. This injection carries on until just after TDC.
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Describe 3rd cycle of a 2 stroke Diesel Engine, including angle
3-4 POWER. 10° ATDC. The expanding gas from burning fuel pushes the piston downwards in the cylinder, turning the crankshaft and producing work.
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Describe 4th cycle of a 2 stroke Diesel Engine, including angle
4-5 EXHAUST BLOWDOWN. 110° ATDC. The exhaust valve opens and the exhaust gas starts to leave the cylinder.
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Describe 5th cycle of a 2 stroke Diesel Engine, including angle
5-6 SCAVENGING. 140° ATDC. The Piston uncovers the scavenge ports. Air at a pressure greater than atmospheric enters the cylinder and pushes out the remaining exhaust gas.
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Describe 6th cycle of a 2 stroke Diesel Engine, including angle
6-1 POST - SCAVENGE. 140° BTDC. As the piston moves up the cylinder, the scavenge ports are covered. The exhaust valve then closes and compression begins.
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