BorgWarner's R2S(R) Turbochargers Boost Performance and Fuel Economy for New Volvo D5 Diesel Engine
March 17 2009 - 7:30AM
PR Newswire (US)
For Volvo's S80 Luxury Sedan, BorgWarner's Turbo Technology Creates
a Dynamic Driving Experience with the Added Pleasure of Passing the
Pump AUBURN HILLS, Mich., March 17 /PRNewswire-FirstCall/ --
BorgWarner's regulated two-stage (R2S(R)) turbocharging system
enhances performance and improves the fuel economy of Volvo's new
2.4-liter D5 diesel engine, which powers the recently launched S80
luxury sedan. Working with Volvo engineers, BorgWarner's
award-winning R2S(R) turbo technology helped beat fuel economy
targets while significantly improving driving dynamics. Volvo's new
D5 diesel engine produces 205 horsepower with 420 Nm of torque but
consumes only 6.2 liters/100 km of fuel (nearly 38 mpg), a
significant improvement over the 185 horsepower, 400 Nm of torque
and 7.1 liters/100 km of fuel consumption (33 mpg) delivered by
previous D5 diesel engines. (Photo:
http://www.newscom.com/cgi-bin/prnh/20090317/DE84700 )
"BorgWarner's R2S(R) turbochargers continuously deliver high boost
pressure over the entire engine speed range, ensuring optimum
engine response at all times while reducing fuel consumption," said
Roger Wood, President and General Manager, BorgWarner Turbo &
Emissions Systems. "Drivers will enjoy the power and excitement of
quick, smooth acceleration without turbo lag and the added pleasure
of passing the fuel pump without refilling." BorgWarner's R2S(R)
regulated two-stage turbocharging system consists of two
series-connected turbochargers: a smaller unit (referred to as the
high-pressure turbocharger) and a larger unit (known as the
low-pressure turbocharger). At low engine speeds, the smaller
high-pressure turbocharger delivers spontaneous engine response
without "turbo lag." The fast build-up of boost pressure improves
pull-away torque and accelerating from a standing start. As a
result, the S80 can accelerate from 0 to 62 mph (100km/h) in just 8
seconds, in spite of weighing nearly 1.7 tons. With increasing
engine speed, the larger low-pressure turbocharger gradually takes
over more of the work, providing more power when accelerating at
higher speeds. Compared with single-stage turbocharging,
BorgWarner's R2S(R) turbocharging technology also introduces higher
levels of exhaust gas recirculation (EGR) across a wider range,
which not only delivers high performance and better fuel economy,
but reduces emissions. While offering excellent dynamics, Volvo's
D5 diesel engine emits only 164 g of CO2/km, complying with Euro 5
emission standards. BorgWarner's patented R2S(R) technology has
received multiple awards, including a 2008 Automotive News PACE
Environmental Award. BorgWarner Turbo & Emissions Systems is a
leading global producer of turbochargers, exhaust gas recirculation
valves and other engine air management systems for passenger cars,
light trucks and commercial vehicles. These systems are designed to
improve fuel economy, reduce emissions and enhance vehicle
performance. Auburn Hills, Michigan-based BorgWarner Inc.
(NYSE:BWA) is a product leader in highly engineered components and
systems for vehicle powertrain applications worldwide. The FORTUNE
500 company operates manufacturing and technical facilities in 60
locations in 18 countries. Customers include VW/Audi, Ford, Toyota,
Renault/Nissan, General Motors, Hyundai/Kia, Daimler, Chrysler,
Fiat, BMW, Honda, John Deere, PSA, and MAN. The Internet address
for BorgWarner is: http://www.borgwarner.com/.
http://www.newscom.com/cgi-bin/prnh/20090317/DE84700
http://photoarchive.ap.org/ DATASOURCE: BorgWarner Inc. CONTACT:
Mary Brevard, BorgWarner Inc., +1-248-754-0881 Web Site:
http://www.borgwarner.com/
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