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Westport Innovations Reaches High Volume Production Capability for HD Fuel Injectors through Deal with Delphi

Westport Innovations Inc. has reached high volume scale production capability in a deal with one of the world’s largest diesel injector manufacturers, Delphi Automotive Systems, LLC, to supply Westport’s proprietary HD fuel injectors. Production is expected to begin in the second half of 2010.

Delphi provides the production scale-up capability that gives us a major boost in matching the industry’s growth. The secure, scalable supply of our specialized injectors will allow us to reach economies-of-scale in production and costs required by our heavy duty engine OEM customers.

—Brad Douville, Westport’s Vice President, Engine Fuel Systems Business

Westport HPDI (high-pressure direct injection) technology uses natural gas as the primary fuel, along with a small amount of diesel as an ignition source. The patented injector features a dual-concentric needle. It allows for small quantities of diesel fuel and large quantities of natural gas to be delivered at high pressure to the combustion chamber.

HPDI allows diesel-cycle operation with approximately 95% replacement of diesel fuel (by energy). This technology uses a cheaper, cleaner-burning fuel than diesel with no compromises on engine torque, power, fuel economy, or driveability while reducing NOx by 33% and greenhouse gases by about 20%.


Henry Gibson

Natural gas or its functional equivalent methane is a possible replacement for much of the diesel fuel used in diesel engines. High pressure natural gas is relatively easy to make and store and has three times the energy density of hydrogen as a compressed gas. Liquid methane is much more energy dense and far easier and cheaper to make than liquid hydrogen because it does not require as cold a temperature. Many diesel engines can get more than 75 percent of their energy from simply mixing methane with the intake air. Its high octane rating prevents the predetonation of the methane before fuel injection.

For years, many hybrid buses have demonstrated that Capstone turbines can be used with higher efficiency and lower pollution of the air by NOX and hydrocarbons, and at least two hybrid automobiles have been built with Capstone turbines. Two or more turbines and batteries can balance the load, allow regeneration and keep the fuel efficiency of the use of the turbines high. Complicated many part diesel engines can be replaced with a single moving part turbine with air bearings.

Diesel engines now power almost all ships and trucks so there will not be a quick change to this technology. Very large diesel engines can also even burn purified suspended coal particles. ..HG..


I'm suprised this hasn't attracted more comment. I wonder if these will be avaiable to convert a smaller diesel vehicle to run natural gas.

Natural gas can also be stored in a adsorbed state in carbon, and this doesn't have to be under pressure or cooled and as such can be many different shapes to fit within the body of the vehicle.

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