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PROGNOSIS * USA - The diagnostic dilemma
Despite the jargon and the math, however, these experts were explaining something that’s going to have huge ramifications to the trucking industry...
USA -Fleet Owner -February 15, 2008: -- ... Cummins’ Zwissler put it this way: “What’s being required of us is to develop extremely sensitive sensors that can detect excessive NOx [oxides of nitrogen] and PM [particulate matter] at very low levels. That means these sensors are going to be more complex – and thus have a higher risk of faults. That’s going to make the maintenance folk’s life more challenging”...
What’s going on is that, starting in 2010, specific rules kick in dictating “good” and “bad” thresholds for the pollutants NOx and PM in the exhaust system of trucks. In 2010, the feds want these “detections sensors” to indicate when those emissions reach five times the acceptable level. In 2013, that threshold gets ratcheted down to three times the acceptable level – with these thresholds continuing to drop through 2019... (Photos: 1. A view of Detroit Diesel’s new DD15 engine - 2. A diesel particulate filter -DPF- that’ll be host to these new sensors)Labels: prognosis
posted by Unknown @ 12:34 PM
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