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Dive into the research topics where Gregory K. Piotrowski is active.

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SAE transactions | 1989

Resistive Materials Applied to Quick Light-off Catalysts

Karl H. Hellman; R. I. Bruetsch; Gregory K. Piotrowski; W. D. Tallent

The application of resistive materials as part of an exhaust emission control system is presented and discussed. The importance of cold start emissions is emphasized, and results are presented from experiments conducted with two different conductive materials. Most of the testing was conducted using methanol as the fuel, although some tests were run using gasoline-fueled vehicles


International Fuels & Lubricants Meeting & Exposition | 1991

Evaluation of Different Resistively Heated Catalyst Technologies

Karl H. Hellman; Gregory K. Piotrowski; Ronald M. Schaefer


International Congress & Exposition | 1994

Evaluation of Specialized Methane Catalytic Converters on a CNG-Fueled Vehicle

Karl H. Hellman; Gregory K. Piotrowski; Ronald M. Schaefer


SAE transactions | 1990

Recent Results from Prototype Vehicle and Emission Control Technology Evaluation Using Methanol Fuel

Karl H. Hellman; Gregory K. Piotrowski


1987 SAE International Fall Fuels and Lubricants Meeting and Exhibition | 1987

Catalysts for Methanol Vehicles

Gregory K. Piotrowski; J. Dillard Murrell


Archive | 1993

EVALUATION OF THREE CATALYSTS FORMULATED FOR METHANE OXIDATION ON A CNG-FUELED PICKUP TRUCK.

Gregory K. Piotrowski; Ronald M. Schaefer


International Congress & Exposition | 1993

Start Catalyst Systems Employing Heated Catalyst Technology for Control of Emissions from Methanol-Fueled Vehicles

Karl H. Hellman; Gregory K. Piotrowski; Ronald M. Schaefer


SAE transactions | 1992

Evaluation of heat storage technology for quick engine warm-up

Karl H. Hellman; Gregory K. Piotrowski; Ronald M. Schaefer


Archive | 1992

Evaluation of research prototype vehicles equipped with direct-injection two-stroke cycle engines. Technical report

Karl H. Hellman; Gregory K. Piotrowski; Ronald M. Schaefer


Archive | 1992

Evaluation of an EMITEC resistively heated metal monolith catalytic converter on two M100 neat methanol-fueled vehicles

Gregory K. Piotrowski; Ronald M. Schaefer

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Ronald M. Schaefer

United States Environmental Protection Agency

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Karl H. Hellman

United States Environmental Protection Agency

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J. Dillard Murrell

United States Environmental Protection Agency

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R. I. Bruetsch

United States Environmental Protection Agency

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W. D. Tallent

United States Environmental Protection Agency

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