Hi- ACHATES claims they are partnering with Cummins for some military application:
http://achatespower.com/achates-power-and-cummins-develop-leap-ahead-capability-for-the-us-army-ground-combat-fleet/
j2bprometheus
mdf3443 -
If the correct turbo is a Borg-Warner K27, the compressor map for the K27 says that 100 % of max turbo speed is 150 KRPM. I found a picture of the compressor map on line by searching for:
Borg-Warner K27 turbo compressor map
My opinion...
StomptingGuy-
My recommendation: re-run the baseline case with this one difference: make the engine displacement 20 % smaller.
Predicted result: the temperature drop will be smaller and the duration shorter.
Regarding the "adiabatic" diesel engine that BigClive mentioned:
Roy Kamo did a lot of work on this, most of it government funded. I saw him give his sales pitch once in the 1990's. He founded a little company that still does stuff related to thermal barrier coatings, etc...
Here are some references on sleeve valve engines:
White, Graham. Allied Aircraft Piston Engines of World War II: History and Development of Frontline Aircraft Piston Engines Produced by Great Britain and the United States. Society of Automotive Engineers, 1995. ISBN: 9781560916550...
Nashx-
Which book to choose depends on what info you need. I work with engines and hence think these are helpful:
Introduction to Internal Combustion Engines by Richard Stone
Internal Combustion Engine Fundamentals by John B. Heywood. McGraw-Hill Book Company, New York, New York...
Hi-
There is some info available on the Cummins website:
http://cumminsfirepower.com/Legacy-Engines.htm
Scroll down a bit on the above website until you find some NT-855 engines listed.
There are also some contacts listed just below that.
I hope that this helps...
Enginumeer-
Ethane is more resistant to autoignition than gasoline ---- compare their RON and MON numbers.
So you may be able to advance the spark timing a bit and improve efficiency without getting into knock
On the other hand, compressor oil autoignites very...
Pat-
Removing the DPF is illegal---
Also, the engine may have a two-way catalyst uptream of the DPF. A two-way catalyst would be poisoned by high sulfur but would probably recover after some high load operation.
Re-installing the DPF is probably a hassle since things...
Hi-
This engine design is similar to some previous designs.
Examples: The Tschudi engine was a spark ignition engine with four curved pistons running in a torodial track. But this was a four stroke engine, not two stroke. Also, the James two stroke opposed piston engine had pistons...
Hi-
There have been several adiabatic engine projects in the past.
Example: Cummins had one in the 1980's.
Google this:
R. Kamo W. Bryzik
There are some SAE papers. Example:
"Adiabatic diesel-engine technology in future transportation " by Roy Kamo...
dicer-
The US patent office has some info. Past this into your web browser:
http://patft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&r=0&p=1&f=S&l=50&Query=IN%2FFeuling&d=PTXT
There is some limited info on wikipedia...
Ibvex:
from: http://www.engineeringtoolbox.com/orifice-nozzle-venturi-d_590.html
References
American Society of Mechanical Engineers (ASME). 2001. Measurement of fluid flow using small bore precision orifice meters. ASME MFC-14M-2001.
International Organization of Standards (ISO...
Hi-
Copper / bronze seals or sealing components are usually damaged by bio fuels.
I suspect that the engine you have is equipped with seals made with copper or bronze.
So expect some leaks to develop.
j2bprometheus
