SOUTHFIELD, Mich. - Tuesday, 23. April 2024
(BUSINESS
WIRE) -- Intelligent power management company Eaton today announced it
has been chosen to supply an electromechanical actuation system (EMAS)
that can deliver an early intake valve closing (EIVC) to the China-based
automaker Great Wall for use in a line of hybrid-electric vehicles
(HEV).
“Emissions regulations are driving the adoption of new
technologies by our global customers,” said Alessio Lorenzon, global
engineering manager, Valves, Eaton’s Mobility Group. “We’re proud to
supply Great Wall with our variable valve actuation technology which, in
combination with vehicle hybridization, will improve fuel economy in
their newest hybrid passenger vehicle lineup.”
The Eaton EMAS is a
discrete valvetrain-based technology that allows manufacturers to
select the intake lift that best fits the engine map. At low to medium
engine speed and torque, the system delivers the EIVC function, reducing
the air trapped in the cylinder and the pumping losses, which increases
overall engine efficiency. When the engine requires maximum
performance, the system switches to the longer valve event, delivering
the highest output possible. Leveraging a system that can be easily
integrated into the valvetrain and the cylinder head space and
controlled by a simple electric actuator, the EMAS creates a balance
between fuel economy and performance.
Eaton’s innovative new
system differs from traditional variable valve actuation (VVA) solutions
in that it includes switchable rockers, a mechanical actuation shaft
controlling the switching of the rockers, and an electric actuator
driving the actuation system on demand. This configuration makes the
system unaffected by varying oil temperatures, which enables fast system
switching across a very wide working range of the engine. This also
enables a safe rocker switch at high engine speed.
“Our EMAS was
conceived to be easily scaled and a minor modification of the mechanical
link between the actuator and rocker arms allows the system to be used
in all engine families from three to six cylinders,” Lorenzon said. “The
switchable rocker arm is composed of stamped and cold-formed parts,
which helps manufacturability without impacting performance.”
Learn more about Eaton’s variable valve actuation solutions.
Eaton
is an intelligent power management company dedicated to protecting the
environment and improving the quality of life for people everywhere. We
make products for the data center, utility, industrial, commercial,
machine building, residential, aerospace and mobility markets. We are
guided by our commitment to do business right, to operate sustainably
and to help our customers manage power ─ today and well into the future.
By capitalizing on the global growth trends of electrification and
digitalization, we’re accelerating the planet’s transition to renewable
energy sources, helping to solve the world’s most urgent power
management challenges, and building a more sustainable society for
people today and generations to come.
Eaton was founded in 1911
and has been listed on the New York Stock Exchange for more than a
century. We reported revenues of $23.2 billion in 2023 and serve
customers in more than 160 countries. For more information, visit
www.eaton.com. Follow us on LinkedIn.
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Contacts
Thomas Nellenbach
(216) 333-2876 (cell)
thomasjnellenbach@eaton.com
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