be cleaned with a power-wash device.
In addition, the SintROC filter was
developed to be a lifetime component.
Its element is robust and does not
require replacement for the lifetime of
the machine, Mann+Hummel said.
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NGK Europe GmbH
NGK has introduced two new substrates — the hexagonal cell with increased hydraulic diameter to reduce
pressure drop and give a better uniform catalyst distribution, and the high
porosity substrate for higher washcoat
loading to increase performance and
reduce pressure drop.
NGK has also announced a more
advanced NOx sensor under development that is to be launched in
2010. It will be engineered for improved
performance and better dynamics,
NGK said.
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Plain Filters Ltd.
Plain Filters Ltd. has recently developed two new lines of DPFs for 4.0 L
engines with an output range of 100
k W or below and 8.0 L engines with an
output range of 175 k W or below.
The company is a member of the
Xinxiang Aviation Industry Group and
is based in Xinxiang city, Henan
Province, China. It currently supplies
DPFs to vehicle manufacturers in
China, including Jiangling Motors,
Iveco and Qingling Motors for use in
their up to 3.0 L, 70 k W engines. These
have also been widely installed as
retrofits on light trucks across the country, Plain Filters said.
The new 4.0 L specification products
target mainly medium- to heavy-duty
construction equipment and distribution vehicles such as postal trucks,
as well as medium buses undergoing
retrofitting.
The new 8.0 L line has been devel-
oped specifically to cater to the needs
of heavy construction machinery and
distribution vehicles, as well as to sup-
port retrofitting programs of large trans-
port vehicles.
PURI tech has introduced a new particulate filter system with HC dosing for
low-temperature operations.
PURI tech’s new particulate filter reduces NOx and NO2, and has HC dosing for low-temperature applications.
The particulate filter system was
tested for the reduction of NOx and
NO2 on a chassis dynamometer at the
University of Graz – Austria. The test
vehicle was a Mercedes-Benz Euro 3
Citaro city bus.
The test was done under the city
drive cycle 9040 and shows lower
exhaust gas temperatures than
any other city cycle, such as the
Braunschweig cycle.
PURI tech reported that NOx was reduced by 21%, NO2 by 61%, HC by
83%, CO by 99.7% and PM by 95%.
The average exhaust gas temperature
was 230°C. The HC dosing unit was
not activated during the test in order to
have the most challenging conditions
possible. When NO2 reached 90%, the
HC dosing unit was activated.
PURI tech said the system is a more
cost-effective solution for all vehicle
operations with lower exhaust gas temperatures and demanding NOx and NO2
reductions, such as city bus operations.
PURI tech has also developed a new
active filter system in the lower price
segment for OEM applications to
achieve Stage 3b and Tier 4 and for the
retrofit of small engines, 22 to 60 k W.
Also new are two systems for addi-
tive dosing: a dosing unit for microdos-
ing and a dosing system for additives
with an integrated pressure sensor that
ensures longer service intervals, lower
ash loading and lower consumption of
the additive.
Wuxi Weifu, headquartered in Wuxi
city, Jiangsu Province, China, has
developed a comprehensive range of
catalysts to comply with Euro 2, 3
and 4 standards. Among its major
customers are Chinese automakers
including Tianjin FAW, Geely, Chery,
Beiqi Foton, Shanghai Maple,
Shenyang Qinbei and Jiangnan Alto.
Applications include petrol cars and
diesel vehicles, motorcycles, LPG
(CNG) engines, and nonroad and
industrial equipment.
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Chinese
manufacturer Wuxi
Weifu offers
a range of
catalysts
that comply
with Euro 2,
3 and 4
standards.
