Previous in Forum: Water Pressure Pump - How to Adjust Water Pressure   Next in Forum: When Synchronous Motor is used Over Induction type Motor
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
3 comments
Rate Comments: Nested
islam.aboauf
Active Contributor

Join Date: Jun 2012
Posts: 14

Help in Diesel Engines

07/19/2012 1:56 PM

i have 2 questions in diesel engines :1) i want to specify the combustion process stages ( delay period , uncontrolled combustion , controlled combustion , after burning stage ) on the crank shaft angles coz i read different angles in many sources so i want exact angles before and after the tdc ?

2) is there any difference between knocking and detonation and what is the most important factor that causes it ?
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".
2
lyn
Guru

Join Date: Oct 2008
Posts: 42355
Good Answers: 1693
#1

Re: help in diesel engines

07/19/2012 2:02 PM

Each engine will have different timing sequences. You'll have to look at the individual engine specifications.

Look up pre-ignition. Knocking and detonation are the same thing.
Register to Reply Good Answer (Score 2)
No more Good Answers.
islam.aboauf
Active Contributor

Join Date: Jun 2012
Posts: 14
#2
In reply to #1

Re: help in diesel engines

07/19/2012 3:45 PM

thanks lyn but i want to know if there is specific angles preferred or something like that ,

and one more question is it correct that 2 stroke engine is more powerful than 4 stroke engine at same rpm
Register to Reply
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#3
In reply to #2

Re: help in diesel engines

07/20/2012 3:24 AM

A 2-stroke has twice as many power strokes per revolution than a 4-stroke, through it is inherently less efficient per power stroke. It is not possible to generalise.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Register to Reply
Have a Different Question?
3 comments

Good Answers:

These comments received enough positive votes to make them "good answers".
Copy to Clipboard

Users who posted comments:

islam.aboauf (1); lyn (1); PWSlack (1)

Previous in Forum: Water Pressure Pump - How to Adjust Water Pressure   Next in Forum: When Synchronous Motor is used Over Induction type Motor

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Mechanical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (63 right now)
Show Members
Advertisement