By Mike Anderson and Tina Grady Barbaccia
Engine reduces particulate matter by 90 percent
Komatsu America Corp. has introduced its new diesel engine that features the next generation of engine technology designed to meet U.S. EPA non-road Tier 4 interim emission regulations. The new diesel engine reduces exhaust gas particulate matter (PM) by more than 90 percent when compared to current Tier 3 levels, says the company. It also reduces NOx by more than 45, according to Komatsu. Computer-controlled heavy-duty HPCR system delivers a precise quantity of pressurized fuel into the engine combustion chamber using multiple injections to achieve complete fuel burn and reduce exhaust emissions.
Doosan air compressor: less noise, more fuel efficiency
The new Platinum Series P185 portable air compressor from Doosan Infracore Portable Power is powered by a high-performance 48-horsepower Interim Tier 4 compliant John Deere or Yanmar diesel engine and provides 185 cfm at 100 to 125 psi. The noise level for the new air compressor has been reduced by 50 percent and fuel efficiency has been increased by 21 percent, providing a 10-hour full-load runtime on one tank of fuel. The new Platinum Series P185 portable rotary-screw air compressor launched in California and then launched nationally.
Grinds centerline and shoulder rumble strips
