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New Ford Diesel Gets 2-Stage Turbocharger
BorgWarner Inc.'s regulated-two-stage (R2S) turbocharging technology will be used in Ford Motor Co.'s new 2.0-liter four-cylinder diesel engine to debut in select Ford vehicles in Europe later this summer.
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BorgWarner Inc.'s regulated-two-stage (R2S) turbocharging technology will be used in Ford Motor Co.'s new 2.0-liter four-cylinder diesel engine to debut in select Ford vehicles in Europe later this summer.
The new engine, which replaces Ford's 2.2-liter four-cylinder diesel, generates 210 hp and 332 lb-ft of torque. The application will be the first time a Ford engine has used R2S, which BorgWarner introduced in 2005.
Consisting of two turbochargers arranged in series, R2S is designed to increase torque and smooth power over the entire engine speed range. A small high-pressure turbocharger generates boost pressure at low exhaust gas flow rates for rapid acceleration at low engine speeds without traditional turbo lag, the company says.
As engine speed increases, the exhaust gas stream splits, and a larger low-pressure turbocharger works in series with the high-pressure turbo to compress intake air.
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