Perkins Tier 4 engine maintains size of existing engines

  • 29-Jun-2011 09:34 EDT

Perkins’ 400F meets Tier 4 regulations while maintaining the size and form factor of its predecessors.

As the deadline for tighter emissions regulations looms closer, Perkins has upgraded its popular 400 Series engine to meet regulations that go into effect in 2013. The 400F meets Tier 4 Final/Stage IIIB regulations that will soon come into force in the U.S. and Europe.

The 400F three- and four-cylinder line will debut with three models. The turbocharged 1.5-L engine will have a 25-30 kW (33-40 hp) power band, with maximum torque of 112 N·m. A naturally aspirated 2.2-L version will have 30-36 kW (40-48 hp) output with torque of up to 143 N·m. With a turbo, the 2.2-L engine will provide 40-45 kW (54-61 hp) and up to 192 N·m.

The Tier 4 engine will keep pricing in line by using the same elements used in earlier models. According to Dean Lakey, Perkins' Product Marketing Manager, 97% of the components are the same. It also maintains a similar size so manufacturers won’t have to do much design rework to move from interim engines to those that meet T4F regulations.

The biggest change for equipment makers will be the addition of an aftertreatment system that uses passive regeneration. The active regeneration system effectively burns the soot in the diesel particulate filter. There is no impact on the duty cycle, so machine operation will not be compromised.

“If the engine is working hard, it will generate a lot of heat so it can burn off the ash with no impact on performance,” Lakey said. “The system will also look for periods when it’s idling and do regeneration then. It usually takes 15 to 20 minutes to regenerate the filter.”

He also noted that the aftertreatment system will reduce noise so mufflers can be smaller. The engine also uses a low-pressure fuel pump instead of the common-rail technique used in many engines. Although the engine is designed for worldwide usage, Lakey estimated that North America will account for about 75% of shipments.

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