|
PREMIERE IN THE MERCEDES-BENZ CLS 350 CGI
08 March 2006 - Bosch
Bosch gasoline direct injection makes its debut with piezo injectors
· Economical spray-guided combustion process with
stratified charge · Up to 15 per cent less gasoline consumption · Over three million gasoline engines with
direct injection by 2010 Bosch is equipping the new Mercedes-Benz CLS 350 CGI with its innovative
gasoline direct injection for what is known as the spray-guided
combustion process. Very fast-switching piezo injectors, here making
their debut in a series-produced car, are the special feature of this new
gasoline-saving technology. The fuel which they spray into the combustion
chamber is so finely atomized that it can be ignited directly without
mixing in the combustion chamber - what the experts call a spray-guided
combustion process with stratified charge. ''Gasoline direct injection
with piezo injectors reduces consumption by up to 15 per cent compared
with today''s port fuel injection,'' explains Dr Rolf Leonhard, Vice-
President Development for Gasoline Systems at Bosch. Besides the piezo
valves, the powerful engine management system is an important feature of
the system. 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. SECOND-GENERATION DI-MOTRONIC WITH SOLENOID VALVES
The combination of direct injection with turbocharging is another avenue
in the development of gasoline engines. As well as a greater revving
range, the engines develop higher torque in the lower speed range. For
this application, Bosch has developed the second generation of the DI-
Motronic which, like the piezo system, delivers injection pressures up to
200 bar but keeps faith with solenoid-controlled injection valves. This
will also be launched in 2006 - in a 1.6-litre engine jointly developed
by BMW and PSA and destined for use in the Mini, among others. Leonhard
sketches out the future market for gasoline direct injection: ''We are
assuming that by 2010, annual production of gasoline engines equipped
with direct injection will top three million.'' The Bosch Group is a leading global manufacturer of automotive and
industrial technology, consumer goods, and building technology. In fiscal
2005, some 250,000 associates generated sales of 42 billion euros. Set up
in Stuttgart in 1886 by Robert Bosch (1861-1942) as ''Workshop for
Precision Mechanics and Electrical Engineering,'' the Bosch Group today
comprises a manufacturing, sales, and after-sales service network of some
270 subsidiaries and more than 12,000 service centers in over 140
countries. The special ownership structure of the Bosch Group guarantees its
financial independence and entrepreneurial freedom. It makes it possible
for the company to undertake significant up-front investments in the
safeguarding of its future, as well as to do justice to its social
responsibility in a manner reflective of the spirit and will of its
founder. 92 % of the shares of Robert Bosch GmbH are held by the
charitable foundation Robert Bosch Stiftung. The entrepreneurial
ownership functions are carried out by Robert Bosch Industrietreuhand KG. Additional information can be accessed at www.bosch.com.
www.bosch-presse.de
More News
For March 2006
From Bosch
For Engines
Driver247.com Home Page
|
