ABOUT THIS REPORT The information in this report is ... - Cummins

Hedgehog: Big can still be green
To meet the very low emission standards
For example, the engine block is made
ENVIRONMENT
It’s hard to imagine something eight feet tall, 14 feet long
and capable of producing 4,000 horsepower could ever
be considered “green.”
But Cummins’ new 16-cylinder QSK95
engine, the largest high-speed diesel engine
the Company has ever built, has a number
of environmentally friendly qualities.
no performance compromise to meet very
low emission standards – an advantage
that few, if any other, large high-speed
or medium-speed engines will be able
to claim for Tier 4,” said Jim Trueblood,
Foremost among them: the engine, the
first of the “Hedgehog” family of engines,
Vice President – Cummins High
Horsepower Engineering.
will meet the most stringent emissions
Mark Levett, Cummins
Vice President and General
standards, including U.S. Environmental
Protection Agency (EPA) Tier 4 Final
regulations that take effect in 2015.
The EPA regulations cover the
off-highway, marine, locomotive,
and power generation markets.
The Hedgehog platform was unveiled
Nov. 1, 2011 at the Seymour, Ind.
Engine Plant where it was fired up
for Cummins employees, reporters and
potential customers. The engine is being
marketed for use in passenger and freight
Manager – High Horsepower
locomotives; boats, including tugs and
Business, talks about “A key achievement of our combustion
towboats; mining and off-shore drilling
the QSK95 engine at its
analysis-led work is that the QSK95 makes
unveiling in Seymour, Ind.
and power generation systems.
in the EPA’s Tier 4 Final, the diesel
Hedgehog will use Cummins’ Selective
Catalytic Reduction (SCR) aftertreatment
system, which has a proven track record
for significantly reducing the Oxides of
Nitrogen (NOx) associated with air
pollution and smog.
The SCR system also achieves diesel
fuel savings of five to ten percent with
a corresponding reduction in carbon
dioxide (CO 2
), a key contributor to
greenhouse gases.
In addition to those environmental
benefits, the Hedgehog platform was
designed with remanufacturing in mind.
Working from a “clean sheet” on the
QSK95, designers were able to consider
remanufacturing in almost every aspect
of the engine.
with a little extra metal so when it comes
time for milling during remanufacturing
it will be easier to bring the block back
to original specifications.
Creating a new engine platform also
allowed engineers to design Hedgehog
with cleaner-burning natural gas in mind.
Leveraging the base architecture of
Hedgehog’s diesel engine, the natural
gas platform will be fully optimized to
deliver market leading performance.
“The natural gas engines will not be just a
derivative of the diesel engines, but uniquely
designed for gas,” said Mark Levett,
Cummins Vice President and General
Manager – High Horsepower Business.
The Hedgehog family will be growing.
Plans are in the works for the QSK120,
adding four cylinders while using the same
platform to achieve over 5,000 horsepower.
ENVIRONMENT
About QSK95
Horsepower: More than 4000-hp
Cylinders: 16
Applications: The QSK95 is ideally suited for
applications such as passenger and freight locomotives,
many types of marine vessels, mine haul trucks and
more. The engine can also be used on offshore oil
and gas platforms for drilling and will power the new
C3000 Series genset from Cummins Power Generation.
Emissions: The QSK95 will meet the most stringent
emission standards, including EPA Tier 4 Final taking
effect in 2015. The engine uses the Selective Catalytic
Reduction (SCR) aftertreatment designed by Cummins
to replace the exhaust muffler.
Production: The QSK95 will be built at the
Seymour, Ind. Engine Plant where $100 million
is being invested to establish a new production
28 SUSTAINABILITY REPORT 2011–2012 SUSTAINABILITY REPORT 2011–2012 line and 29 world-class test facilities.