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Showing results 1 to 13 of 13
Search took 0.01 seconds. Search: Posts Made By: ConnClark
Forum: Diesel Performance Tuning 07-27-2010, 04:58 PM
Replies: 164
Views: 45,705
Posted By ConnClark
I don't know what you hope to achieve with a...

I don't know what you hope to achieve with a swirl around the vertical axis. The whole purpose of swirling air in a prechamber is to circulate as much fresh air past the burn zone as possible. After...
Forum: Diesel Performance Tuning 12-11-2008, 03:31 PM
Replies: 164
Views: 45,705
Posted By ConnClark
Changing the prechamber volume is going to change...

Changing the prechamber volume is going to change the compression ratio. Increasing the volume is going to drop it. IDI engines need a high compression ratio to aid in starting. Not to mention that...
Forum: Diesel Performance Tuning 12-08-2008, 02:49 PM
Replies: 164
Views: 45,705
Posted By ConnClark
Okay I didn't realize you were talking about...

Okay I didn't realize you were talking about operating at an increased boost level. If boost level is increased significantly I agree changing the hole sizes is called for.

If your keeping boost...
Forum: Diesel Performance Tuning 12-08-2008, 02:17 PM
Replies: 164
Views: 45,705
Posted By ConnClark
The pressure comes from the partially burned air...

The pressure comes from the partially burned air fuel mixture flowing through the restriction of the flame tube and jet holes to the cylinder.
Forum: Diesel Performance Tuning 12-06-2008, 01:44 AM
Replies: 164
Views: 45,705
Posted By ConnClark
Its not apples to oranges. Its more like...

Its not apples to oranges. Its more like comparing a macintosh to a golden delicious. A swirl chamber is a prechamber combustion engine. Its just a more efficient form of one.



In the stock...
Forum: Diesel Performance Tuning 12-05-2008, 03:40 PM
Replies: 164
Views: 45,705
Posted By ConnClark
OM616, The report I was referring to was ...

OM616,

The report I was referring to was NACA-tn-436

http://aerade.cranfield.ac.uk/ara/dl.php?filename=1932/naca-tn-436.pdf

I'll post more on this later but right now I'm in a pinch for...
Forum: Diesel Performance Tuning 12-03-2008, 05:50 PM
Replies: 164
Views: 45,705
Posted By ConnClark
Actually in patent 4,347,814 the ball is centered...

Actually in patent 4,347,814 the ball is centered and the injector points straight into the prechamber. You will get swirl but it won't be as good as the offset ball and the angled injector.

Edit:...
Forum: Diesel Performance Tuning 12-02-2008, 09:07 PM
Replies: 164
Views: 45,705
Posted By ConnClark
I have been trying to figure out a way of doing...

I have been trying to figure out a way of doing this for a while. I thought about trying to modify an existing impingement pin but doing so with out weakening it is a problem. I have also thought...
Forum: Diesel Performance Tuning 12-01-2008, 01:16 AM
Replies: 164
Views: 45,705
Posted By ConnClark
The purpose of the holes is to direct jets of...

The purpose of the holes is to direct jets of partially burned fuel through out the cylinder. The jets allow more fresh air to surround the unburnt fuel and promote mixing and thus better...
Forum: Diesel Performance Tuning 11-29-2008, 02:58 AM
Replies: 164
Views: 45,705
Posted By ConnClark
here is a pic of a cross section of the OM617 and...

here is a pic of a cross section of the OM617 and the OM603 prechambers. I added the red arrows to show how the air flow swirls upon entry to the prechamber.

Also here are some patent numbers to...
Forum: Diesel Performance Tuning 11-28-2008, 06:33 PM
Replies: 164
Views: 45,705
Posted By ConnClark
Whatever you do to the holes at the end of the...

Whatever you do to the holes at the end of the prechamber tube will have no real effect on the air flow in the prechamber. The way to get effective swirl in the prechamber was patented by Mercedes...
Forum: Diesel Performance Tuning 11-18-2008, 03:36 PM
Replies: 164
Views: 45,705
Posted By ConnClark
A helical grove in the prechamber throat will not...

A helical grove in the prechamber throat will not provide any benefit on an OM616 or OM617 engine. This is because to enhance combustion you must move fresh air through the area where the atomized...
Forum: Diesel Performance Tuning 09-17-2008, 10:19 PM
Replies: 164
Views: 45,705
Posted By ConnClark
If you were to take the total area of the holes...

If you were to take the total area of the holes and compare them to the cross sectional area at the end of the flame tube, you would probably find that they are almost the same. The holes by them...
Showing results 1 to 13 of 13

 
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