Jump to content
Mechanical Engineering Community

Mechanical Engineering Questions

  • entries
    366
  • comments
    1,396
  • views
    857,385

Contributors to this blog

What is the difference between knocking and detonation in IC engine?

saurabhjain

22,765 views

What is the difference between knocking and detonation in IC engine?

knocking.jpg

1. You can answer this question.

2. You can like the best answer.

3. You can share the question

 

You can get updates of new questions on Facebook linkedin twitter & google plus



6 Comments


Recommended Comments

Detonation: after completion of compression stroke in SI IC engine. The spark plugs ignites the injected fuel and explosion is started.

Knocking: some fuel may get ignited during compression stroke itself before ignition from spark plug. This produce knocking sound and hence called knocking. 

 

Share this comment


Link to comment

knocking and detonation are same things .

But the knocking is use in diesel engine and  Detonation is used in petrol engine.

Reasons of detonation

1)Low octane fuel

2)High compression  e.t.c

Reasons of knocking

1)Low inlet pressure

2)Low injector pressure

3)Low cetane number fuel

Share this comment


Link to comment
Guest
Add a comment...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.




×
×
  • Create New...