Donaldson Co.'s Diesel Oxidation Catalyst (DOC) muffler and Spiracle crankcase ventilation filter has been approved by the Environmental Protection Agency for retrofitting to diesel engines built since 1991. Minneapolis-based Donaldson said its DOC muffler and crankcase filter combination can cut diesel engine emissions from medium- and heavy-duty trucks as well as school buses by 25% to 50%. Steve
Aug. 1, 2003
Donaldson Co.'s Diesel Oxidation Catalyst (DOC) muffler and Spiracle crankcase ventilation filter has been approved by the Environmental Protection Agency for retrofitting to diesel engines built since 1991.
Minneapolis-based Donaldson said its DOC muffler and crankcase filter combination can cut diesel engine emissions from medium- and heavy-duty trucks as well as school buses by 25% to 50%.
Steve Schmeichel, Donaldson's emissions manager, added that up to 25% of the pollution generated by a diesel-powered vehicle comes from the crankcase. That's why tailpipe-only emission control systems ignore what he calls “a big contributor” to the pollution problem posed by diesel engines. www.donaldson.com
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