AUTOMOTIVE
EMISSIONS REGULATIONS
BURKERT
TACKLING POLLUTION CONTROL
IN DIESEL GENERATING SETS
The introduction of Tier 4 and Tier 5
emissions regulations continue to have an
impact on manufacturers of diesel engines
and the final products in which they are
used. Tier 4 has already been implemented
for non-emergency generating sets and it
seems only a matter of time before they
will have to meet Tier 5 requirements. To
help manufacturers meet both current and
future emissions regulations, Burkert can
develop complete dosing packages for
selective catalytic reduction (SCR) systems.
In order to comply with ever-more stringent
emissions regulations, engine and vehicle
manufacturers have, in the main, turned to
SCR systems to reduce particulate matter
and nitrogen oxides (NOx) from diesel
engines. By adding carefully measured
doses of diesel exhaust fluid (DEF) the NOx
emissions are broken down into nitrogen
and water.
The control of the dosing rate for DEF is very
important to ensure optimum performance
and to avoid ammonia slip, which refers to a
quantity of DEF that passes through the SCR
system unreacted. Similarly, too little and
the NOx levels can rise above prescribed
levels.
With its considerable expertise in designing
and manufacturing high-precision dosing
systems, Burkert can create a complete
control package that can be integrated with
the existing engine control infrastructure.
Designed to be compact and very reliable,
Burkert’s system combines a number of its
products with bespoke manifolds to ensure
optimum performance.
Burkert offers an extensive range of
proportional valves, piloted solenoid valves
and direct-acting solenoid valves that can
be easily integrated with its sensors and
controllers to provide a solution for any
engine size. The company’s knowledge
in process control systems also ensures
pneumatic delivery can be accomplished for
larger engines while maintaining the same
high levels of dosing precision.
The design of any SCR system requires
expert knowledge, not only in process
control and valve design but also in dealing
with the challenges that corrosive fluids
present in such systems.
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PECM Issue 36
Burkert can help manufacturers create SCR systems that enable diesel engines to
meet current emissions legislation.