Economical spray-guided combustion process reduces gasoline consumption by 15 per cent

April 16, 2006

Bosch, the premier manufacturer of automotive spare parts and accessories, has announced that it is equipping the new Mercedes-Benz CLS 350 CGI with its innovative gasoline direct injection, which allows the reduction of gasoline consumption by up to 15 per cent.

The highlight of Bosch's new gasoline-saving technology is the fast-switching piezo injectors, which are being fitted in a series-produced car for the first time. The fuel these injectors spray into the combustion chamber is so finely atomized that it can be ignited directly without mixing in the combustion chamber, a process known as spray-guided combustion. Another important feature of direct injection is the powerful engine management system.

"Reducing gasoline consumption has assumed more importance today than ever before, given the ever-increasing number of vehicles on the roads. Bosch has been concentrating its efforts on developing technology that helps bring down the consumption of gasoline, and the innovative gasoline direct injection technology is a result of our sustained focus on Research & Development," said Oleg Riabstev, General Manager, Middle East Operation, Bosch Automotive Aftermarket (Bosch AA).

"Bosch's new gasoline direct injection with piezo injectors reduces consumption by up to 15 per cent compared with today's port fuel injection. We expect that by 2010, annual production of gasoline engines equipped with direct injection will top three million," Riabstev added.

In 2005, researchers and developers from Bosch and Siemens VDO who worked independently on piezo technology for gasoline and diesel engines were jointly awarded the German President's "Zukunftspreis," the award for innovation and advanced technology. Bosch is now the first company to embark on mass production of a piezo-controlled gasoline injection system.

Bosch has also developed the second generation DI-Motronic with solenoid-controlled injection valves, which combines direct injunction with turbocharging. It features greater revving range and the engines develop higher torque in the lower speed range. Bosch is gearing up to launch the second generation DI-Motronic later this year, in a 1.6-litre engine jointly developed by BMW and PSA and destined for use in the Mini, among others.

-Ends-

Editors Note:
The Bosch Group is one of the world's leading suppliers of automotive equipment. The Bosch Automotive Aftermarket business division (Bosch AA) deals with the global supply of replacement parts and information for Bosch products and systems, the distribution of shop and auto accessories, and worldwide customer service. Bosch AA delivers to 132 countries through regional companies, foreign representatives, or customer service centres. Its distribution centre warehouses more than 150,000 different items: Diesel and petrol injection parts, sparkplugs, filters, starters, generators, brakes, headlights, and many other automotive supplies. Bosch Automotive has been operating in the Middle East for almost 40 years. Since then, the Automotive after sales business has maintained a significant presence in Middle East markets.  

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© Press Release 2006