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Tag: diesel oxidation catalyst (DOC)

Roadbuilding
New Road Products
Reversible plate compactors, wheel loaders, concrete adhesive and pavers from World of Concrete 2014 are among the products featured.
February 10, 2014
NewRoadProducts_icon
Equipment Experts
The inner-workings of Komatsu’s Tier 4 Interim engines
Physics and chemistry dictate that most Tier 4 Interim engines follow a common design formula to reduce emissions. Above 75 horsepower most manufacturers have increased fuel injection pressures, boosted turbos, ramped up exhaust gas recirculation (EGR) rates and added aftertreatment that traps or burns off what the Environmental Protection Agency doesn’t want going out the […]
November 1, 2012
Equipment
The inner-workings of Komatsu’s Tier 4 Interim engines
Physics and chemistry dictate that most Tier 4 Interim engines follow a common design formula to reduce emissions. Above 75 horsepower most manufacturers have increased fuel injection pressures, boosted turbos, ramped up exhaust gas recirculation (EGR) rates and added aftertreatment that traps or burns off what the Environmental Protection Agency doesn’t want going out the […]
November 1, 2012
On Komatsu’s Tier 4 Interim engines emissions reductions are handled by a variable geometry turbo, high pressure common rail fuel injection, cooled EGR and a DPF that includes a diesel oxidation catalyst and a catalyzed soot filter.
Roadbuilding
Terex CR662RM RoadMix material transfer vehicle and paver meets Tier 4i standards
The new Terex CR662RM RoadMix material transfer vehicle and paver meets Tier 4i (Stage III B) emissions standards. Offering the same 260 hp output as the previous model, the machine’s new power unit is 5 percent more fuel efficient to extend operating intervals between tank refills, according to Terex.,The new Terex CR662RM RoadMix material transfer vehicle and paver meets Tier 4i (Stage III B) emissions standards. Offering the same 260 hp output as the previous model, the machine’s new power unit is 5 percent more fuel efficient to extend operating intervals between tank refills, according to Terex.,The new Terex CR662RM RoadMix material transfer vehicle and paver meets Tier 4i (Stage III B) emissions standards. Offering the same 260 hp output as the previous model, the machine’s new power unit is 5 percent more fuel efficient to extend operating intervals between tank refills, according to Terex.,The new Terex CR662RM RoadMix material transfer vehicle and paver meets Tier 4i (Stage III B) emissions standards. Offering the same 260 hp output as the previous model, the machine’s new power unit is 5 percent more fuel efficient to extend operating intervals between tank refills, according to Terex.,The new Terex CR662RM RoadMix material transfer vehicle and paver meets Tier 4i (Stage III B) emissions standards. Offering the same 260 hp output as the previous model, the machine’s new power unit is 5 percent more fuel efficient to extend operating intervals between tank refills, according to Terex.,The new Terex CR662RM RoadMix material transfer vehicle and paver meets Tier 4i (Stage III B) emissions standards. Offering the same 260 hp output as the previous model, the machine’s new power unit is 5 percent more fuel efficient to extend operating intervals between tank refills, according to Terex.,The new Terex CR662RM RoadMix material transfer vehicle and paver meets Tier 4i (Stage III B) emissions standards. Offering the same 260 hp output as the previous model, the machine’s new power unit is 5 percent more fuel efficient to extend operating intervals between tank refills, according to Terex.,The new Terex CR662RM RoadMix material transfer vehicle and paver meets Tier 4i (Stage III B) emissions standards. Offering the same 260 hp output as the previous model, the machine’s new power unit is 5 percent more fuel efficient to extend operating intervals between tank refills, according to Terex.,The new Terex CR662RM RoadMix material transfer vehicle and paver meets Tier 4i (Stage III B) emissions standards. Offering the same 260 hp output as the previous model, the machine’s new power unit is 5 percent more fuel efficient to extend operating intervals between tank refills, according to Terex.,The new Terex CR662RM RoadMix material transfer vehicle and paver meets Tier 4i (Stage III B) emissions standards. Offering the same 260 hp output as the previous model, the machine’s new power unit is 5 percent more fuel efficient to extend operating intervals between tank refills, according to Terex.
May 7, 2012
Cr662 T4i Release Image
Roadbuilding
John Deere moving ahead with Final Tier 4, EU IV emissions plans
John Deere is moving ahead with its planned building-block approach to meet United States Final Tier 4 and European Union Stage IV emissions regulations, the company announced on March 2. Final Tier 4/Stage IV regulations for off-highway diesel engines begin as early as 2013 for engines 55 kW (74 horsepower) and below. Regulatory dates for […]
March 2, 2012
Safety
Special Report
Tier 4 Interim Big changes in store for new equipment next year … and 2012 … and 2014. By  Tom Jackson It’s just three months and counting before the Environmental Protection Agency’s Tier 4 Interim regulations for non-road engines takes effect for most medium to large horsepower bands. And when it does, the new machines […]
September 6, 2010
The DPF and exhaust units on many Tier 4 interim machines are packaged as one unit to save space.
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