Posted by buickanddeere on December 09, 2010 at 18:31:29 from (209.240.113.217):
Small diesel equipment is going to become much more expensive and complicated.Or disappear from the market. The chart didn't cut and paste as desired so the link is included. http://www.dieselnet.com/standards/us/nonroad.php
Table 3 Tier 4 Emission Standards—Engines up to 560 kW, g/kWh (g/bhp-hr) Engine Power Year CO NMHC NMHC+NOx NOx PM kW < 8 (hp < 11) 2008 8.0 (6.0) - 7.5 (5.6) - 0.4a (0.3) 8 ≤ kW < 19 (11 ≤ hp < 25) 2008 6.6 (4.9) - 7.5 (5.6) - 0.4 (0.3) 19 ≤ kW < 37 (25 ≤ hp < 50) 2008 5.5 (4.1) - 7.5 (5.6) - 0.3 (0.22) 2013 5.5 (4.1) - 4.7 (3.5) - 0.03 (0.022) 37 ≤ kW < 56 (50 ≤ hp < 75) 2008 5.0 (3.7) - 4.7 (3.5) - 0.3b (0.22) 2013 5.0 (3.7) - 4.7 (3.5) - 0.03 (0.022) 56 ≤ kW < 130 (75 ≤ hp < 175) 2012-2014c 5.0 (3.7) 0.19 (0.14) - 0.40 (0.30) 0.02 (0.015) 130 ≤ kW ≤ 560 (175 ≤ hp ≤ 750) 2011-2014d 3.5 (2.6) 0.19 (0.14) - 0.40 (0.30) 0.02 (0.015) a - hand-startable, air-cooled, DI engines may be certified to Tier 2 standards through 2009 and to an optional PM standard of 0.6 g/kWh starting in 2010 b - 0.4 g/kWh (Tier 2) if manufacturer complies with the 0.03 g/kWh standard from 2012 c - PM/CO: full compliance from 2012; NOx/HC: Option 1 (if banked Tier 2 credits used)—50% engines must comply in 2012-2013; Option 2 (if no Tier 2 credits claimed)—25% engines must comply in 2012-2014, with full compliance from 2014.12.31 d - PM/CO: full compliance from 2011; NOx/HC: 50% engines must comply in 2011-2013
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