AUBURN HILLS, Mich., April 17, 2013 /PRNewswire/ -- During a ceremony held in Detroit, BorgWarner received a 2013 Automotive News PACE Innovation Partnership Award for its collaboration with BMW on the first regulated three-stage (R3S) turbocharging system for diesel engines. The innovative technology achieves a V8's powerful output with the fuel economy of an inline-6 engine. BorgWarner worked closely with BMW to develop the three-stage technology, which debuted on the BMW M Performance diesel engine, the most powerful 6-cylinder in-line diesel engine in the world. BorgWarner's innovation also earned a 2013 Automotive News PACE Award, the company's seventh award in nine years.
"BorgWarner's successful partnership with BMW was forged more than a decade ago with the development and introduction of regulated two-stage turbocharging. Our mutual drive to push the limits of performance and fuel economy led to close collaboration beginning in the earliest development stages of the R3S turbocharging system. Engineers in both companies were dedicated to achieving ambitious targets, developing a benchmark diesel engine technology and bringing the innovation to market first," said Frederic Lissalde, President and General Manager, BorgWarner Turbo Systems Passenger Car Products. "We are very proud to receive these awards. They symbolize the entrepreneurial spirit and dedication of the many employees at BorgWarner and BMW who helped develop and produce this important innovation."
Designed with many new components for fuel-efficient turbocharging, BorgWarner's R3S turbocharging system consists of two small high-pressure variable turbine geometry turbochargers integrated with one larger low-pressure turbocharger. The three turbochargers are activated successively at different engine speeds. The first high-pressure turbocharger starts at engine speeds just above idle. With increasing revs, the larger low-pressure turbocharger comes into play. At higher speeds, the second high-pressure turbocharger also comes on line with all three turbochargers working in harmony. For effective and efficient boost pressure, the exhaust flow and supply of fresh air are precisely regulated.