Particulate filter addition

  • 09-Jul-2008 03:26 EDT
JohnDeere_DPF_Cutaway.jpg

 

To achieve compliance with Interim Tier 4/Stage IIIB mobile off-highway emissions regulations for engines 130 kW (174 hp) and above, John Deere Power Systems plans to use its Tier 3 PowerTech Plus engine platform, add a diesel oxidation catalyst/diesel particulate filter (DOC/DPF) unit for reducing particulates, and increase the percentage of cooled exhaust gas recirculation for NOx control. The DOC/DPF unit meets the demands of rugged off-highway applications, including extreme vibration and temperature. The DOC component reduces carbon monoxide, hydrocarbons, and some particulate matter, while the downstream DPF traps and holds particulates remaining in the exhaust stream. Trapped particles are eventually incinerated within the DPF through regeneration, and the DOC/DPF replaces the need for a muffler in most applications. Next-generation engines also will be equipped with either a closed or open crankcase ventilation system to manage crankcase emissions.

Share
HTML for Linking to Page
Page URL
Grade
Rate It
0.00 Avg. Rating

Read More Articles On

2018-02-05
Thermal imaging data obtained from a FLIR high-performance camera shows that the expected turbine output temperature is approximately 285°C when the helicopter is in forward flight. However, during hover operations a steady state temperature of about 343°C will be reached.

Related Items

Technical Paper / Journal Article
2011-05-17
Article
2017-09-15
Training / Education
1999-09-27
X