atomization enhancement

[Fredrik Skog]

On Thu, 6 May 1999, Howard Wilkinson wrote:

I just looked this up. All the new german diesel engines use common-rail
(BMW, Audi, Mercedes) and uses a pressures of approx 1350 bar.
VW has a new diesel at 1.9 liter that uses one separate diesel
pump/cyilinder and uses a pressure of 2050 bar. According to all these
manufacturers the higher the pressure the better the combustion.

Examples:

BMW 530d : inline 6, 3 liters, 184HP/4000rpm, 390Nm/1750rpm
Audi Tdi:  V6, 2.5 liters, 150HP/4000rpm, 310 Nm/1500rpm
VW 1.9 tdi: inline 4, 1.9 liters, 115HP, 285Nm/1900rpm

All of these new diesels are wonderful to drive, you cant tell they are
not gas engines except from the low rpm torque. Especialy the BMW diesel
is awsome wich easily outperforms most gas cars.

Bye!

> Fredrik:
>     Please tell me which common rail diesels use this kind of pressure
> so I can be sure to avoid them ;-)......... The only common rail
> diesels I am familiar with are the Cummins PT and the Detroit
> engines.... They use nowhere near this kind of pressure.  I strongly
> doubt that the Ford Powerstroke uses much rail pressure either.
> H.W.
>  
>
>> Actually the numbers I have heard are used in the common-rail diesels
>> are
>> 800-1400 bars depending on make....
>> A lot of pressure that is for sure.
>> 


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