Cat increases efficiency in Stage V engines


Caterpillar has announced it has increased efficiency and performance in its Stage V-compliant engines.

The company earmarked three areas that required specific attention in order to realize further improvements in its engines. These included developing more efficient aftertreatment systems, simplifying installation in OEM-customer machines and providing added value for operators of the vehicles.

The Stage V-compliant C9.3B engine is one example. Caterpillar focused on simplifying design, improving performance, and reducing installation complexity of the six-cylinder, 9.3-liter unit, which is in production ahead of the regulatory requirements coming into force on January 1, 2019.

“The C9.3B’s certification is an exciting milestone for Caterpillar, and we’re confident that this engine will meet customer expectations for reliability and durability in a simpler, lighter package with more power and torque,” said Jeff Moore, product director, research and development for 7.2- to 18-liter engines.

The C9.3B combines a new high-pressure/common-rail fuel system with simplified systems for air, electrical and aftertreatment to produce up to 456hp of power and 2,088Nm of torque, resulting in 18% more power, 21% more torque, and 12% less weight compared with its predecessor.

“End users will see this refinement pay off with increased performance, up to 3% less fuel consumption and exceptional starting capability in cold climates,” said Moore.

“Patented aftertreatment technology provides a compact, lightweight design that is 39% smaller and 55% lighter than the EU Stage IV/Tier 4 Final configuration, and the new design provides transparent regeneration to ensure optimum machine performance and uptime.”

May 3, 2018

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James joined the Industrial Vehicle Technology International team in 2017. Previously he was Assistant Editor on an engineering title for several years and has worked for various other trade magazines before that. James is happily married and has a young daughter and son who keep him busy.

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