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Car engine firing cycle.

bigtimecharlie · 2024-06-30 11:26:06

Posting here as some of you all may be knowledgeable on my question. In an inline 4 cylinder engine (i4), am I correct that at any one time, each of the 4 cylinders is doing one of the 4 stages of running (intake, compression, power and exhaust)? If so, what's going on in a i6, are 2 cylinders idle for a portion of the…

30-06-2024 11:26am

#1

bigtimecharlie

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Posting here as some of you all may be knowledgeable on my question.
In an inline 4 cylinder engine (i4), am I correct that at any one time, each of the 4 cylinders is doing one of the 4 stages of running (intake, compression, power and exhaust)?
If so, what's going on in a i6, are 2 cylinders idle for a portion of the rotation?

1

Comments

#2 24-07-2024 8:29pm

Silent Shrill

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They are all doing something, they simply have 2 more pistons, hence greater power, (usually).

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#3 29-07-2024 10:23pm

whizbang

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A 6 Cylinder will have the pistons offset by 120 degrees, sort of arranged as 2 x 3 to get 2 x 360 cycles, whereas a 4 cyl wil have 90deg. So 3 bangs per 2 revolutions gives a smoother power and better balance than 2 bangs per 2 revs.

0