Perkins' New Compact 400 Series Engine
Perkins new 4-cylinder, 2.2 liter 404F-E22TA Tier 4 Final engine represents the first engine of its size to feature a common rail direct injection and full authority electronics, the company says. The new turbocharged aftercooled model, manufactured in Griffin, Ga., should be of particular interest to compact equipment manufacturers, especially for power generation, outdoor power and construction equipment applications.
The common rail fuel system and full authority electronics allow greater flexibility in tailoring the engine to specific applications and lets OEMs touse a smaller displacement engine in machines where traditionally engines up to 2.9 liters may have been the norm. Performance from the 404F-E22TA has been boosted to 67 hp with a maximum torque of 208 Nm at 1800 rpm, while rated speed is up to 2800 rpm. A turbocharged non-aftercooled model offers up to 48 hp.
As a result operators and end users will experience better load acceptance, good transient response and overall smoother operation from machines equipped with this model. Real-life testing has shown a 7 percent improvement in specific fuel consumption (SFC) previously gained at Tier 4 Interim/Stage IIIA. This has been aided by better heat rejection enabling lower fan speeds.
The compact size and engine architecture, featuring a rear-mounted small diesel oxidation catalyst (DOC), allows OEMs to adopt no-compromise machine designs across many construction applications including skid steer loaders, compact wheeled loaders, hydraulic excavators and rollers.
“The launch of the 404F-E22TA represents a significant evolution for the 400 Series. For OEMs in the compact machinery market it offers some compelling advantages, not least of which is the ability to transform how their machines perform and operate,” explains David Kidder, 400 Series product manager.
“The sheer flexibility of this engine in terms of machine integration is a real step-change and the benefits for OEM customers will be tangible and welcomed. Performance aside, we have also managed to improve SFC, lower noise and retain the compact dimensions that are so necessary for this sector,” he adds.
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