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Q: natural gas conversion ( Answered,   2 Comments )
Subject: natural gas conversion
Category: Business and Money > Small Businesses
Asked by: minerswife-ga
List Price: $150.00
Posted: 07 Oct 2005 02:18 PDT
Expires: 06 Nov 2005 01:18 PST
Question ID: 577445
We are looking for companies with the technology for the conversion of
diesel to natural gas for use in heavy vehicles and equipment.

Request for Question Clarification by easterangel-ga on 07 Oct 2005 02:31 PDT

Just to make sure is this about engine conversion? Are you looking for
companies that convert diesel engines to natural gas?

Subject: Re: natural gas conversion
Answered By: guillermo-ga on 30 Oct 2005 23:04 PST
Hello Minerswife-ga,

I'm glad to help you in a new search. While the output may seem short,
it's the result of a quite long search that shed the following
companies that explicitly claim to convert or provide parts to convert
*diesel engines* to natural gas powered engines for *heavy duty*

Hybrid Fuel Systems:


Alternative Fuel Systems:


Now, since a possibility for the conversion of a vehicle or equipment
from diesel to natural gas power can be changing the engine, I
included in my search natural gas-powered engines manufacturers:

Atlantic Detroit Diesel-Allison:

Wesport Innovations, Inc:
This company actually converts other manufacturer's diesel engines. As
they say: "We work with global automotive leaders such as Cummins
Inc., Ford, M.A.N., BMW, and Isuzu to incorporate our technologies
into their engines..." So, they actually have the technology to
convert diesel engines to natural gas, and they do it partnering with
the original manufacturers.

Clean Air Power:

John Deere Power Systems' 6081H 280 and 6081H 275:

Additionally, I thought you might be interested in this International
Truck and Engine Corporation's "Green Diesel Technology (R)", which
the company claims that "is better than the emissions of the next best
alternative ? compressed natural gas":

Also, since you mentioned vehicles *and equipment*, the Tecogen's
products might be of interest for you:

My search strategy was "diesel to natural gas conversion", results
page ://

I hope that this information proves useful enough to your purpose.
Otherwise, please request clarification and I'll do my best to provide



Clarification of Answer by guillermo-ga on 31 Oct 2005 15:44 PST
Hello Minerswife-ga,

Thanks to a telephone contact that I had thought I wouldn't reach -
but finally did - I've been directed to another source that is likely
to broaden our range of potential providers. This is the National Gas
Vehicle Coalition website ( ). They
have a very comprehensive Business Directory
( )
organized in several categories, among which the two that I think may
be more useful for your purpose are "Complete Fueling Systems"
) and "Engines" (
), specially its subcategory "Medium/Heavy-Duty"
), which lists the following companies:
Collier Technologies 
Cummins Westport Inc. 
QUANTUM Technologies Inc. 
Thomas Built Buses, Inc. 

Inside the "Complete Fueling Systems" category, the subcategory that
would fit more your needs may be - I guess - "conversion kit
), which includes the following providers:

BAF Technologies 
Baytech Corporation 
CenterPoint Energy Alternative Fuels 
Collier Technologies 
Cummins Westport Inc. 
FAB Industries LLC 
QUANTUM Technologies Inc. 
Saskatchewan Research Council 

Right now I need to finish another project. Please wait until tomorrow
and I'll explore the new information to see the ones that match better
your needs.



Request for Answer Clarification by minerswife-ga on 01 Nov 2005 00:13 PST
Just to make sure is this about engine conversion? Are you looking for
companies that convert diesel engines to natural gas?


Clarification of Answer by guillermo-ga on 01 Nov 2005 00:39 PST
Thank you, I had assumed that in my answer, I'm glad I wasn't wrong :)

Any clarification of my answer needed? Thanks.


Clarification of Answer by guillermo-ga on 01 Nov 2005 20:04 PST
Hello Minerswife-ga,

As promised, I've checked the new information from NGVC's Business
Directory. Here's the result.

Category "Engines", Subcategory "Medium/Heavy-Duty"

>> Collier Technologies ( ) work mainly
in combining natural gas with pure hydrogen. They're not in the
business of converting diesel to natural gas.

>> Cummins Westport Inc. ( ) is the
joint venture of Westport - included in my original list - with
Cummins for the conversion of the latter's original diesel engines to
natural gas, that is, it works exclusively for Cummins diesel engines.

>> QUANTUM Technologies Inc. ( ) Its profile at
NGVC's Business Directory
) states that "QUANTUM is a Tier One supplier to Original Equipment
Manufacturers (OEMs) for engineered fuel delivery and fuel storage
systems", and Quantum's website doesn't specify anything about
converting diesel engines. However, in their section Engines
( ) it reads:
"Quantum-Tecstar features complete in-house manufacturing capabilities
for the development, machining, fabricating, assembling and testing of
the complete range of engine components necessary to deliver custom
performance enhancements. Our fabrication department prides itself in
designing and building custom induction systems, exhaust systems,
turbo-chargers, super-chargers and alternative fuel systems for a
variety of engines. We also do extensive work with fuel injection and
nitrous systems by developing and proving out custom designs or
accurately calibrating existing ones." After that, it might be worth
contacting them.

>> TeleflexGFI ( ) "is the premier full
system service supplier (FSSS) of
alternative fuel systems and components for natural gas, propane
and hydrogen powered vehicles and industrial equipment." Hence,
converting from diesel doesn't seem to be their business.

>> Thomas Built Buses, Inc. ( is a bus manufacturer.

Category "Complete Fueling Systems", subcategory "conversion kit

Collier Technologies, Cummins Westport Inc. and QUANTUM Technologies
Inc. were included in the previous category.

>> BAF Technologies ( ) A big YES, they
do convert from diesel engines to natural gas.

>> Baytech Corporation ( ) A conditional
YES, they do convert engines to natural gas, but I couldn't confirm if
they do so from diesel.

>> CenterPoint Energy Alternative Fuels
( ) NO, they are a natural gas (and
electricity) supplier.

>> DRV ENERGY, Inc. ( redirects to ) YES, its URL redirects to Hybrid
Fuel Systems' - one of the originally included in the answer - and
their domicile and telephone numbers coincide.

>> FAB Industries LLC ( ) Apparently specialized
in fuel storage and flow control devices, it's also included as a
conversion system instaler, but I couldn't determin if only for
storage equipment or for the complete conversion.

>> Saskatchewan Research Council ( ) NO, it's a
R&D organization that has developed and patented some parts for
natural gas systems.

Additionally, you may probably want to take a look to the NGVC's
Natural Gas Vehicles Purchasing Guide:$FILE/2003+Purchasing+Guide.pdf

I think that you have now a more complete panorama, which I hope
covers your needs. Otherwise, please let me know.


Subject: Re: natural gas conversion
From: vsssarma-ga on 14 Oct 2005 05:12 PDT
A lot of companies convert diesel vehicles into vehicles with NG. Try
the link
Subject: Re: natural gas conversion
From: gerkecr-ga on 25 Oct 2005 22:25 PDT
I am not an expert - not a ga researcher either :) - , but I saw your
question and had some knowledge on the topic based on a bachelor's
degree in mechanical engineering and some work experience.

If you question is about converting diesel fuel to natural gas:
Natural gas is a mixture of different naturally occurring hydrocarbons
(hydrogen and carbon filled molecules,) primarily methane.

Diesel consists of primarily of hydrocarbons as well.

Both fuels essentially consist of hydrogen and carbon atoms. So to
convert convert pure diesel to ng would require chemical reactions of
which I an not familiar (not to say it doesn't exist so keep looking).

If your question is related to conversion of a diesel burning engine
to a ng burning engine (as I suspect that it is):
I suspect that one would want to convert a diesel engine to a ng
engine only if the equipment is stationary, but engines used in
stationary applications (gensets, water pumps, etc) are offen very
similar (share many parts) to those used in mobile applications (earth
moving machines, boats, etc).
Some (maybe even most) generator set manufacturers (Caterpillar,
Cummins, etc.) offer their genset packages with either diesel (for
mobile applications) or gas burning (for stationary applications)
engines.  This would mean that the companies will have parts in their
systems to build either type of engine.  Perhaps you can go to your
equipment's nearest dealer (or straight to the manufacturer) for
information on retrofitting.  This likely wouldn't be a standard job
for them, but I would expect most heavy equipment dealers would likely
jump on the opportunity to rebuild/remanufacture an engine.

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