HPDIHigh Pressure Direct Injection
HPDIHealth Products Distributors, Inc. (Oracle, AZ)
HPDIHighway Planning and Design Institute (China)
HPDIHighest Posterior Density Interval
HPDIHuman Performance Development International (Romania)
HPDIHarmonic Power Doppler Imaging (medical technology)
References in periodicals archive ?
3 million to develop Westport HPDI technology for high-horsepower applications from SDTC, a not-for-profit corporation created by the Government of Canada to help commercialize emerging clean technologies.
Westport also received an order for nine Kenworth T800 heavy-LNG trucks featuring its HPDI technology was also received from CleanAir Logix of Oakland, Calif.
According to Westport, it will offer the ISX HPDI engine in two ratings--400 hp with 1,450 ft.
Westport noted that it will deliver three of the new CARB-certified systems to San Francisco, CA-based Norcal Waste Systems in April as part of an agreement to extend the use of the HPDI LNG truck fleet until 2011.
CARB certification represents the major milestone required for us to make the heavy-duty Cummins ISX HPDI LNG engine and fuel system available to commercial fleets in California for deployment in 2006," said Westport president and chief operating officer Michael Gallagher.
As part of Weichai's ongoing commitment to running clean-burning, lower-cost natural gas and offering its customers diesel-like performance, Weichai and Westport have agreed to develop the 10 litre Weichai Westport WD10 engine with Westport HPDI 2.
Westport's HPDI system is based on a patented injector that simultaneously allows tightly controlled quantities of diesel fuel and large quantities of natural gas to be delivered at high pressure to the combustion chamber.
Although Yamaha hasn't yet given up the HPDI two-stroke ghost altogether, there are only three models left, ranging from 150 to 200 hp, but they appear to be an endangered species.
Westport said the program will continue developing HPDI natural gas fuel systems for 450-horsepower Cummins ISX engines to meet approaching emissions regulations for nitrogen oxide and particulate matter emissions set by the Environmental Protection Agency and the California Air Resources Board.
10) Fleets with a combination of SI and Westport HPDI trucks can now rely on the same LNG refuelling infrastructure due to the system's fuel-flexible capabilities.
The program positions Cat to become the first manufacturer to bring HPDI technology to the high horsepower off-road market, to offer the broadest product line of natural gas-fueled machines and equipment, and to capitalize on the attractiveness of natural gas as an alternate mobile fuel--all within the shortest time frame for our customers.
The company will take delivery of 15 heavy-duty liquefied natural gas (LNG) trucks, featuring Westport's ISX G engine with its HPDI technology.