Automobile

1. FIRING DIAGRAM
7/30/2019 1CREATED BY H.M.M.L.HERATH

2. MULTI CYLINDER ENGINE
7/30/2019CREATED BY H.M.M.L.HERATH 2

3. 7/30/2019CREATED BY H.M.M.L.HERATH 3
FIRING INTERVAL
 Four-stroke Engine
Firing Interval =
720˙
𝑛𝑜 𝑜𝑓 𝑐𝑦𝑙𝑖𝑛𝑑𝑒𝑟𝑠
 Two-stroke Engine
Firing Interval =
360˙
𝑛𝑜 𝑜𝑓 𝑐𝑦𝑙𝑖𝑛𝑑𝑒𝑟𝑠

4. 7/30/2019 4CREATED BY H.M.M.L.HERATH
Four-stroke Engine Firing Order

5. 7/30/2019 5
FIRING DIAGRAM
CREATED BY H.M.M.L.HERATH

6. 7/30/2019 6CREATED BY H.M.M.L.HERATH
 Firing Order
 Firing Interval
 FIRING DIAGRAM
stroke
cylinder FIRING DIAGRAM

7. 7/30/2019 7CREATED BY H.M.M.L.HERATH
Single Cylinder Firing Diagram
Exhaust Suction compressionPower
0˙ 180˙ 360˙ 540˙ 720˙
1

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2 -CYLINDER IN-LINE ENGINE
Firing Order - 1,2
Firing Interval -
720˙
2
= 360˙
Exhaust Suction Compression
Suction compression Power Exhaust
Power
0˙ 180˙ 360˙ 540˙ 720˙
1
2
CREATED BY H.M.M.L.HERATH

9. 7/30/2019CREATED BY H.M.M.L.HERATH 9
3 -CYLINDER IN-LINE ENGINE
Firing Order - 1,3,2
Firing Interval - (720˙)/3 =240˙
0 180˙ 360
˙
540˙ 720˙
1
3
2
Power Exhaust
Exhaust
Exhaust
Suction
Suction
Compression
Compression
Compression Suction

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4 -CYLINDER IN-LINE ENGINE
Firing Order - 1,3,4,2
Firing Interval - (720˙)/4 =180˙
CREATED BY H.M.M.L.HERATH

11. 7/30/2019 11CREATED BY H.M.M.L.HERATH

12. 7/30/2019CREATED BY H.M.M.L.HERATH 12
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