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MORE STARTING POWER
10 October 2005 - Bosch
Bosch parallel starting system for IC engines
· Compound starter for a more powerful starting performance · Reduced wear lowers operating costs · Compact design requires less space Bosch designed a new parallel starting system for 24 V on-board vehicle
electrical systems for internal-combustion engines with a starting power
requirement of 8 up to 25 kW. Such power requirements are needed, for
example, by construction vehicles, large tractors and also stationary
machines. The system is based on two or three reduction-gear starters of
the HEP 109 type range with overhanging pinion design for greater
resistance to environmental effects. Depending on the ambient temperature
at cold start and the magnitude of additional hydraulic loads at engine
start, the system may be required already for engines as of nine liters
piston displacement. For standard applications at a cold crank
temperature of -20°C, it has been designed for diesel engines up to 72
liters and gasoline/gas engines up to 144 liters displacement. The new parallel starting system offers advantages in service life and
size. The main current is only switched on once the compound starters are
meshed. This provides for an optimal distribution of the electrical and
mechanical loads and makes overloads impossible. In comparison to direct
starters, the result is double the service life achieving up to 14,000
hours. The Bosch parallel starting system offers cost benefits over the
whole life cycle. The new parallel starting system requires clearly less installation
space than conventional direct starters. Furthermore, the parallel
control relay can be integrated into the unit. Bosch succeeded in
reducing the weight of the individual starter to 14 kilograms. Production of the new parallel starting system is planned for the year
2006. Bosch will show the system at the Agritechnica exhibition in
Hanover from November 6 through 12, 2005. The Bosch Group is a leading global manufacturer of automotive and
industrial technology, consumer goods, and building technology. In fiscal
2004, some 242 000 associates generated sales of 40 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
260 subsidiaries and more than 10 000 service centers in over 130
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.
www.bosch-presse.de
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