Komatsu D61-23 Achieves Fuel Gain, Boasts New Blade

摘要

Komatsu's D61-23 crawler dozer has a Komatsu Tier 4-Interim SAA-6D107E-2 engine that provides the same horsepower as its predecessor, while lowering fuel consumption by up to 10 percent, the company says. The engine provides 168 net horsepower at 2,200 rpm and uses Komatsu's Tier 4-Interim engine platform with an advanced electronic control system to manage airflow rate, fuel injection, combustion parameters, and aftertreat-ment functions. Komatsu's diesel particulate filter has an integrated design that will not interfere with daily operation but will keep the operator aware of its status. It removes soot using "passive regeneration" the majority of the time to minimize "active regeneration" events. Its hydrauli-cally actuated variable geometry turbocharger and EGR valve are designed for precision and better air management, Komatsu says.