Physics, asked by shreyagupta4179, 1 year ago

Why rich mixture is required in cas of ideling?

Answers

Answered by raaj25
0
An idling,engine demands a rich mixture,which can be made leaner as the throttle is gradually opened.During idling,the pressure in the inlet manifold is about20 to25% of atmospheric pressure.At suction stroke,inlet valve opens and the product of combustion trapped in the clearance volume,expands in the inlet manifold.Latter when the piston moves downwards,the gases along with the fresh charges go into the cylinder.A rich mixture must be supplied during idling,to counteract the tendency of dilution and to get an ignitable mixture.

I hope it help you
Answered by Akash8840
0
an idling engine demands a rich mixture which can be made leaner as the throttle is gradually opened during idling the pressure in the inlet manifold is about20 to25  ...
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