CYCLES OF DIESEL ENGINES ac iq ინგლისური 233

1. What is a diesel engine?

The diesel engine is an internal combustion engine.

Internal combustion engines may have a four-stroke cycle or a two-stroke cycle.

The diesel engine is an internal combastion engine.

2. What types of internal combustion engine do you know?

Engine is a travel of the piston between its extreme points

Internal combustion engines may have a four-stroke cycle or a two-stroke cycle.

Internal combustion engines may have a four-stroke cycle or a second-stroke cycle.

4. What can you say about slow speed diesel engines?

Large diesel engines, which have cylinder near about 900 sm in diameter turn at the relatively slow speed at about 145 rpm and less. They are known as slow speed diesel engines. At this low speed the engine requires no reduction gearbox between it and the propeller.

Large diesel engines, which have cylinder near about 900 mm in diameter turn at the relatively slow speed at about 145 rpm and less. They are known as slow speed diesel engines. At this low speed the engine requires no reduction gearbox between it and the propeller.

Large diesel engines, which have cylinder near about 900 mm in diameter turn at the relatively slow speed at about 145 hrpm and less. They are known as slow speed diesel engines. At this low speed the engine requires no reduction gearbox between it and the propeller.

5. What can you say about medium speed diesel engines?

Medium speed diesel engines operate between 150 and 450 rpm, therefore they are connected to the propeller buy gearing.

Medium speed diesel engines operate between 150 and 450 rpm, therefore they are connected the propeller by gearing.

Medium speed diesel engines operate between 150 and 450 rpm, therefore they are connected to the propeller by gearing.

6. What cycles does a four-stroke engine consist of?

The four-stroke cycle consists of the suction (or intake) stroke, compression stroke, combustion and expansion stroke and egzaust stroke.

The four-stroke cycle consists of the suction (or intake) stroke, compression stroke, combustion and expansion stoke and exhaust stroke.

The four-stroke cycle consists of the suction (or intake) stroke, compression stroke, combustion and expansion stroke and exhaust sroke.

The four-stroke cycle consists of the suction (or intake) stroke, compression stroke, combustion and expansion stroke and exhaust stroke.

7. During what stroke is air drawn into the cylinder? 7. რა დარტყმის დროს იწევს ჰაერი ცილინდრში?

At the top dead centre the inlet valve opens and fresh air is drawn in as the piston moves down suction stroke.

The four-stroke cycle consists of the suction (or intake) stroke, compression stroke, combustion and expansion stroke and exhaust stroke.

At the bottom dead centre the inlet valve closes and the air in the cylinder is compressed as the piston rises – compression.

8. When is the air in the cylinder compressed?

At the top dead centre the inlet valve closes and the air in the cylinder is compressed as the piston rises – compression

At the bottom dead centre the inlet valve closes and the air in the cylinder is compressed as the piston rises – compression

At the between dead centre the inlet valve closes and the air in the cylinder is compressed as the piston rises – compression

9. What is the first piston stroke?

The first piston stroke is suction (or intake) stroke

The first piston stroke is compression stroke.

The first piston stroke is exhaust stroke.

10. When does the inlet valve close?

At the bottom dead centre the inlet valve closes and the air is the cylinder is compressed as the piston risess – compression.

At the bottom dead centre the inlet valve closes and the air in the cylinder is compressed as the piston rise – compression.

At the bottom dead centre the inlet valve closes and the air in the cylinder is compressed as the piston rises – compression.

11. What is the second piston stroke?

The second piston stroek is combustion and expansion stroke.

The second piston stroke is compression stroke

The second piston stroke is exhaust stroke.

14. How many piston strokes does one complete cycle require?

One complete cycle requires four strokens of the piston.

One complete cycle rquires four strokes of the piston

One complete cycle requires four strokes of the piston.

15. How many complete revolutions of the crankshaft do the four strokes comprise?

The four strokes comprise two complete revolutions of the crankshaft

The four strokes comprise two complete revolution of the crankshaft

The four strokes comprise two complete revolutions of the cranshaft

16. What is there instead of valves in a two-stroke cycle engine?

Instead of valves holes, known as “ports” are used.

Instead of valves holes, known as “port” are used.

Instead of valves holes, known as “ports” are usd.

17. When do the scavenge ports open?

The burnt gases then begin to exhaust and the piston continues down until it opens the inlet or scavenge ports

The two-stroke cycle requires two strokes of the piston and one complete revolution of the crankshaft

The burnt gases then begin to exhaust and the piston continues down until it opens the inlet or scavege ports

The burnt gases then begin to exhaust and the piston continues down until it opens the intel or scavenge ports

18. How many revolutions of the crankshaft are required in a 2-cycle engine? 18. ამწე ლილვის რამდენი შემობრუნებაა საჭირო 2 ციკლიან ძრავში?

The two-stroke cycle requires two strokes of the piston and one complete revolution of the crankshaft.

The second-stroke cycle requires two strokes of the piston and one complete revolution of the crankshaft.

The first-stroke cycle requires two strokes of the piston and one complete revolution of the crankshaft.

CYCLES OF DIESEL ENGINES ac iq ინგლისური 233

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