deutz live 1/2009

Title
Technologies of the future
DEUTZ-DVERT®
Exhaust technologies:
System kits for
optimum solutions
Timeline for legal specifications
The exhaust aftertreatment of
the future will in some cases
require significantly more construction
volumes and thus a
commensurate adaptation of
the construction space. Our
engineers are already working
closely in an early stage of the
design with our customers. The
visualisation tool (see page 22)
is also providing invaluable
assistance with this.
8 DEUTZLIVE 1/2009
From 2011 onwards, exhaust emissions stage EU III
B will come into force in Europe and US Tier 4 interim
will come into force in the USA for engines in
mobile machinery. Stages IIIB/Tier 4 will impact on
the technology concept of industrial engines like no
stage before. The regulations will initially affect
engines over an output of 130 kW, with four performance
stages in lower performance classes
moving into a new emissions stage at yearly intervals.
From 2014, the stricter US Tier 4 / EU IV stages will
then come into force. This means that emissions of
NOx and particulates in diesel engine exhausts
must be cut by a total of 95 per cent compared to
1999 by the year 2014.
Extremely different requirements
While regions such as Western Europe, Scandinavia,
North America and Japan will then have very
strict emissions thresholds, Eastern Europe, large
parts of Asia, Australia and South America will
mostly have only engaged interim stages. In Africa
or the Arab world, there will be no exhaust directives.
Equipment manufacturers in individual countries
will also have to observe individual regulations
as regards air purity plans. Other requirements will
ultimately arise from the application scenarios.
Requirements in agricultural technology, where consumption
and performance, for example, are very
important, are very different from the requirements
of stationary systems or the construction equipment
sector with their very different load character-