PCT Acceptance for Miratech’s V-CAT Catalyst

Tuesday, January 26, 2010
Photo courtesy Miratech

Miratech Corporation, designer and manufacturer of emission control products, has been notified that the Patent Cooperation Treaty (PCT) application submitted for its V-CAT catalyst has been accepted. Acceptance of the PCT opens the door to and simplifies the process for subsequent international patent filings.

Under the PCT, Miratech, by filing a single international patent application in one language with one patent office, will streamline the process for seeking protection for its V-CAT design in up to 117 countries throughout the world.

“We've had outstanding success with V-CAT domestically, given its ability to provide operators of EMD diesel engines used to power locomotives, gensets, and marine vessels the means to meet—and exceed— EPA Tier 0, 1, and 2 standards for exhaust emissions. We're excited about taking that success worldwide, and this moves us forward toward doing so,” said Bill Clary, Miratech CEO.  

The Miratech V-CAT catalyst/exhaust manifold system addresses a number of engineering challenges that have hampered previous emission control efforts, according to Jonathan Roberts, MIRATECH Sales Manager for Locomotive and Marine Markets. “When designing a Diesel Oxidation Catalyst (DOC) for use in EMD-powered locomotives and commercial marine vehicles, engineers have to deal with limited space behind the turbocharger; exhaust gas temps that are too low for effective DOC performance; and the risk of exceeding the low exhaust back pressures EMD engines need to operate efficiently,” Roberts explained. “We've addressed those in V-CAT by, first, integrating the catalyst directly into the exhaust manifold before the turbocharger with a design configuration that keeps open access to all areas — including the EMD valve covers — needed for regular service and maintenance. At the same time, because gases are hotter upstream from the turbocharger, integrating the V-CAT into the exhaust manifold effectively addresses the issue of low exhaust gas temps. And finally, our customers said they wanted a system that was simple in design; with V-CAT's Plug and Play design, it could not be much simpler.”

V-CAT's efficacy was proven in a 14-month in-service field test, after which the unit was inspected and emissions tested at Southwest Research Institute (SwRI). The inspection found no mechanical issues and emission reductions of 49% PM, 75% HC and 82% CO based on the EPA line-haul cycle measured.

(www.miratechcorp.com)

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