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The best fuel efficiency can be realized by compromising the engine boost pressure and pumping loss.
Modeling results by the example of a direct injection two-stage diesel engine boost pressure control are presented.
The numerical analysis results show that pressure ratio distribution (PRD) of compressors, inter-stage cooler, total turbine expansion ratio and turbine bypass or equivalent efficiency are the dominant factors affecting engine boost pressure, pumping loss and consequently the engine performance.
Increasing the total turbine expansion ratio by reducing flow area of high-pressure stage VGT led to higher engine boost pressure, increased PRD and turbocharging efficiency variation, which results in increased pumping loss.
A thermodynamic model was developed base on the first and second laws of thermodynamic to analyze the effects of different turbocharging parameters on engine boost pressure and pumping loss qualitatively.
Engineers at NASA have created a prototype of an electromagnetic propulsion system that would use a linear motor and ramjet engine boost system instead of an all rocket propulsion system to fling a vehicle into space.
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First, Jaguar supercharged their AJ-V-8 engine, boosting the car's output to 370 hp.
The Transportation Systems segment manufactures engine boosting systems for passenger cars and commercial vehicles, and also provides automotive care and braking products.
The Honda Insight is the first "hybrid" car to go on the U.S. market-hybrid because it's got a three-cylinder gasoline engine boosted by a small electric motor.
A computer simulation conducted by the Southwest Research Institute found that a turbocharged version of the Scuderi split-cycle air hybrid engine boosted the fuel economy of a 2011 Nissan Sentra by 54%, to about 50 miles per gallon.
Twitter's new Activity @mention streams are just such a social imperative engine, boosting usage of previously useless citation formats like Favorites and Lists by surfacing the actions we take to try and filter the unfilterable.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com