Truck & Off-Highway Engineering - December 2023 - 18

PERKINS
bets big on
POWERTRAIN FEATURE
SMALLER ENGINE
" We did a lot of experimenting with the actuator to try and minimize the
number of cycles that the turbocharger will have to go through even with the
transient nature of an off-highway engine. " - Allen Chen, product marketing manager, Perkins
supplanting larger powertrain offerings is a distinct
approach as Perkins replaces its larger 15- and 18-liter
offerings with this 13-liter engine.
" Since a variable turbo regulates the incoming air,
you're able to have a wide range of performance from
a single engine, " Chen explained. " It was one of the
reasons we were able to commonize iron sets. So customer
value really was one of the biggest reasons we
selected a variable geometry turbo. Variable turbos
have been done before, perhaps not in this size range,
but they have been proven to work. "
Chen continued, " Some of the challenges that we've
seen, especially in harsher off-highway applications, is
that these engines tend to cycle a lot. So that's something
that we were really paying attention to and testing
to determine the turbo's durability. We did a lot of
experimenting with the actuator to try and minimize
the number of cycles that the turbocharger will have to
ON DEMAND WEBINAR
ELECTRIFYING OFF-HIGHWAY DRIVETRAINS
Available On-Demand
Speakers:
The variety of vehicle sizes and extreme duty cycles found
in construction, mining and agricultural applications poses
unique challenges to the engineers working to develop
optimal electrified-drivetrain solutions. This 60-minute
Webinar from the editors of Truck & Off-Highway
Engineering reviews the latest technology advancements
and engineering efforts to bring durable, cost-effective
electric machines that offer sustainable solutions to these
demanding operating environments.
go through even with the transient nature of an off-highway engine. "
Perkins worked with an external supplier to size the turbo properly
to ensure that the vanes vary their pitch as little as possible. " We selected
the largest size we would need, and then scaled it down, "
Chen said. " Response on an engine like this is not a large concern,
and there's no wastegate. There is a bypass valve, but all boost control
is managed by the vanes. "
At launch, the turbo will be high-pressure oil cooled only. " There
might be instances where water cooling is needed, but it is not currently
a feature of the turbo system, " Chen said.
Coming soon
While an exact timeline was not revealed at the launch event, Perkins
stated that the 2600 Series will be available for early OEM pilots starting
in 2025, with commercial production scheduled to begin in 2026 at
the company's plant in Seguin, Texas. There currently are several prototype
engines already in the field with select OEMs in key markets.
Ettore Cosoli
Vice President of
Engineering -
Heavy Vehicles,
Dana
For additional details and to register visit: www.sae.org/webcasts
Sponsored by:
Hosted by:
Stefan Wicki
Global Product
Manager -
eMobility,
ABB
Gregory Pavuk
Senior Product
Line Manager,
Accelera by
Cummins
18 December 2023
TRUCK & OFF-HIGHWAY ENGINEERING

https://www.sae.org/webcasts

Truck & Off-Highway Engineering - December 2023

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