Dual-fuel diesel injector study

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Natural gas is quickly becoming a viable alternative fuel for transportation because of its clean burningcharacteristics and its abundance in North America. Westport Innovations is one of the world's largestdevelopers of natural gas technologies for vehicle internal combustion engines. Westport pioneered highpressure direct injection (HPDI) compression ignition engine designed for the heavy duty natural gas truckingsector. Westport has an ongoing research and development program at its Vancouver location. Test equipmentincludes high pressure chambers used to characterize diesel fuel spray at post compression pressure. Thecompany lacks equipment to characterize fuel spray in a high pressure and temperature atmosphere, and moreimportantly the ignition of a mixture of natural gas and air at prototypic post compression diesel conditions.The objective of this project is to develop laboratory equipment that can be used to study the ignition of apremixed high pressure and temperature mixture of natural gas and air by diesel injection. Of specific interestto Westport are mixture conditions corresponding to minimum load, below which either the natural gas is toolean to burn or the diesel pilot will not ignite. The equipment will subsequently be available to Westport forfuture injector development and testing.