Better Roads Digital Magazine
Issue link: https://read.dmtmag.com/i/85919
T Tier 4 Final intros headline Intermat ier 4 Final engines and transmissions with claims of double-digit leaps in fuel economy headlined Intermat, which took place in Paris, France, April 16-21. Selective Cata- lytic Reduction, or SCR, is the front runner in Tier 4 Final technology, with Mario Gasparri, president, CNH Construction, proclaiming, "We feel we're ahead of the Tier 4 Final game because we chose SCR early." The company says it has learned the ins and outs of SCR technology from sister company Iveco's truck engine experience. With Tier 4 Final SCR engines, manufacturers are now talking about total fluid economy, not just fuel economy, taking into account these engines will need both fuel and diesel emission fluid, or DEF. When combined with cooled EGR technology, Deere says its Integrat- ed Emissions Control system will use less DEF in its SCR system than alternative Tier 4 Interim solutions. This will result in a smaller DEF tank, extended DEF filter service intervals and reduced operator intervention. "Per gallon, DEF costs just as much as diesel today," says Doug Laudick, manager of prod- uct planning, John Deere Power Systems. "We're estimating our DEF consumption will be about 1 to 3 percent of diesel consumption." Cummins' new QSF2.8 engine offers 49 to 74 horsepower, the smallest engine introduced by Cummins for the off-highway industry. The four-cylinder, 2.8-liter engine was displayed with a fully passive Cum- mins Compact Catalyst aftertreat- ment system, designed to meet Tier 4 Final emissions regulations with- The Tier 4 Final QSF2.8 will be manufactured at Cummins' new plant in Beijing, China. out the use of a diesel particulate filter. The engine has full-authority electronic controls driving a high- pressure common rail fuel system, and will likely power skid steers, aerial lifts, compact excavators, tele- handlers and gen sets. Cummins calls the flow-through Compact Catalyst device a "fit and forget" system, requiring no ash- cleaning service, no sensors and no operational lamps in the equipment cab. Remove the catalyst, and the base engine can be used in Tier 3 applications. Perkins launched its 4.4-liter, 4-cylinder 1204F and 7-liter, 6-cylin- der 1206F Tier 4 Final engines. The 1204F comes in either a single or twin-turbo aftercooled version, and Shorts IronPlanet said its online auctions in the United States are attracting an average of about 17,000 poten- tial bidders and online European auctions draw an average of about 6,000. The company also said it had recently completed its largest-ever auction, ringing up $50 million in one week, with 65 percent of the 1,200 items up for bid, all in North America, bringing at least one international bid and 23 percent of the items purchased overseas. The company also plans a repeat of its February live auction in Orlando. Better Roads June 2012 39b