Truck & Off-Highway Engineering - February 2023 - 4

TECHNICAL
INNOVATIONS
POWERTRAIN | POWER GENERATION
Scania adapts on-highway diesel engine for new
off-highway variants
SAE INTERNATIONAL
BOARD OF DIRECTORS
Todd Zarfos
President
Carla Bailo
2024 President
Srinivasa (Sri) Srinath, Ph.D
2022 President
Susan Ying, Ph.D
Vice President - Aerospace
Daniel Nicholson
Vice President - Automotive
Audley Brown
Vice President -
Commercial Vehicle
Andrew Jeffers
Treasurer
David L. Schutt, Ph.D
Chief Executive Officer
Scania's new offhighway
engine
platform results from
nearly a decade of
development work.
Scania Power Solutions has launched a new
engine platform designed to provide new power
outputs, longer service intervals, longer
base-engine operational life and reduced carbon
dioxide emissions. The engines will be
available for industrial, heavy machinery and
power generation applications. Series production
is due to begin in 2024.
The starting point for the new platform is
the 12.74-liter inline six-cylinder diesel engine
designed for Scania's road-going vehicles,
which was launched in late 2021. This engine
delivered a claimed reduction in fuel consumption
of 8% and thermal efficiency approaching
50%. Design features include dual overhead
camshafts and a single cylinder head casting,
replacing the individual cylinder heads of the
previous engine.
For Scania Power Solutions, there will be
two new engines. The first is a variant of the
12.74-liter engine described above; the other is
a five-cylinder inline variant offering a capacity
of 11-liters. The 13-liter variant provides a range
of power outputs between 368 and 450 kW
(493 and 603 hp), while the 11-liter engine offers
power outputs between 202 and 368 kW
(271 and 493 hp). Scania also claims that
4 February 2023
torque has risen by up to 21% compared with
the current engine.
For the 13-liter engine, Scania Power
Solutions claims that fuel consumption is reduced
by up to 7% compared with its predecessor.
The company also suggests that the
period between service intervals could be up
to 25,000 hours.
" Power Solutions within Scania is a synergy
business area, which means that we derive the
products from our colleagues working with the
on-highway business and then we adapt the engines
for the particular segments that we work in,
whether it's industrial, power generation or marine, "
explained Henrik Nilsson, Power Solutions
product management director at Scania. " That
strategy has stayed the same for a few years.
What changes of course is the application areas
and the legislation that we work with. "
Fuel consumption and the working life of the
engines were key focus areas for the development
team. Nilsson says that because the engine
was a completely new design, the team
was able to focus on what really matters. " We've
done everything we can in order to achieve the
fuel consumption goals and the life length, " he
said. " It goes down to the placement of the
Gregory L. Bradley, Esq.
Secretary
Judy Curran
Mary Lee Gambone
Michael Weinert
Joan Wills
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or contact SAE Member Relations Specialist
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Collegiate Chapters
Collegiate Chapters are a way for SAE
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skills in a student-run and -elected
environment. Student Members are vital
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you the engineering knowledge you
need, participation in your SAE Collegiate
Chapter can develop or enhance other
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more information, please visit students.
sae.org/chapters/collegiate/ or contact
SAE Member Relations Specialist Abby
Hartman at abby.hartman@sae.org.
TRUCK & OFF-HIGHWAY ENGINEERING
SCANIA
https://www.sae.org/participate/membership/sections https://www.sae.org/participate/membership/collegiate-chapters
Truck & Off-Highway Engineering - February 2023

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