The problem of air pollution around the globe
is real and serious. In most countries, the transportation
sector uses mostly diesel-powered engines, which are heavy
polluters. To correctly convert a diesel engine to a low-polluting CNG or
LPG engine is costly, technologically challenging and timely.
Most of the countries also import the diesel fuel they use.
Not only is the fuel expensive, but it also causes excessive
air pollution. However, some countries have large reserves of
natural gas but no technology to use it in engines. The
conversion of diesel engines to natural gas would decrease the
country’s dependence on foreign fuel and help them utilize the
abundant natural gas resources.
Omnitek approaches the issue of converting or
replacing of high-polluting diesel engines to clean burning
natural gas engines by offering two main options, which in
large part are dictated by the level of technological
capabilities within the country and financial feasibility.
Omnitek may work with
local companies in an effort to convert high polluting diesel
engines to clean burning natural gas, or will supply new
dedicated CNG engines. (At the customer's request, Omnitek may
rebuild/convert the old engine at the Omnitek facility)
-- Under Solution #1 Omnitek will supply engineering support, for
a small per-vehicle royalty, to rebuild the engines locally to
Omnitek specifications on a "Technology Transfer" basis. This
offers an economic benefit and boost to the local economy.
Then the engines are being equipped with the Omnitek CNG fuel
system, allowing for the engines to be tuned up to the EURO 3
standard.
Converting engines from diesel to CNG requires
some good amount of expertise and may involve significant
downtime.
Suggested engine modifications to assure engine
reliability, optimized
power, fuel consumption and emissions may include optimizing
compression ratio, valve lift, valve timing, exhaust system
and intake manifold. Special attention goes to engine cooling,
engine lubrication and the potential issue of excessive oil
consumption. A properly modified engine can make the same
power as the base engine.
Gasoline Engine Conversions
May need to improve cooling system
efficiency
May need engine oil cooler
May need new valve seats
For higher efficiency, engine
compression can be increased
Diesel Engine Conversions
May need to improve cooling system
efficiency
May need engine oil cooler
May need new valve seats, guides
and seals
May need new pistons and rings
Engine compression must be lowered
May need a new camshaft
Ignition system must be installed
Cylinder head modifications are needed to install spark plugs
Custom cam or crankshaft
position sensors must be made
--- Under Solution
#2 Omnitek supplies complete low-polluting alternative fuel
engines in 4 and 6 cylinder configurations. This may
be the better option when the existing engines are based on
old and outdated technology, and when long downtimes are not
acceptable. The dedicated alternative fuel
engines can meet EURO II, EURO III and EURO IV
standards.
NOTE:
* A detailed project
evaluation and thorough inspection of the engines is required
prior to purchase order acceptance.
* Not all diesel
engines can be successfully converted. Some engines require a
great amount of mechanical changes to operate reliably. Some
converted engines can not be tuned to the strictest emission
standards.
Please
fill out Pre-evaluation Form for each type of engine.
Omnitek CNG Engine

Diesel-to-Natural Gas Conversion System