Westport Innovations, spun out of a Univ. of British Columbia research report, is apparently making good progress with a compression-ignition engine system that employs a very small amount of injected diesel fuel to provide an ignition source followed by injected natural gas as the main fuel energy supply. Except for the injection system and new NG fuel tanks, the engines can be off-the-shelf conventional technology and presumably retrofitted. A Financial Times report lists the claimed ...

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