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Investigation of In-Use Deterioration of Exhaust Emissions from Small Single Cylinder Two Stroke-Cycle Engines
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English
Abstract
A Cross section of engines used to power hand held portable power equipment, both current production engines and engines designed to meet California's Tier I Exhaust Emission Limits (See Table #1), were subjected to actual field use and accelerated laboratory aging. Test data shows good correlation between actual field usage and accelerated laboratory aging. Both standard production and new lower emission type engines showed decreases in emissions during initial hours (0 - 10) and very minimal to no deterioration of engine exhaust emissions with respect to usage.
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Citation
Liechty, K., "Investigation of In-Use Deterioration of Exhaust Emissions from Small Single Cylinder Two Stroke-Cycle Engines," SAE Technical Paper 952137, 1995, https://doi.org/10.4271/952137.Also In
References
- United States Environmental Protection Agency “PPEMA In-Use Testing Report” March 1993
- California Code of Regulations, Title 13, Sections 2400 through 2407 California Exhaust Emissions Standards and Test Procedures for 1995 and Later Utility and Lawn & Garden Equipment Engines
- United States Environmental Protection Agency “Control of Air Pollution; Emissions Standards for New Nonroad Spark-ignition Engines At or Below 19 Kilowatts; Final Rule” July 03 1995
- SAE J1088 Surface Vehicle Recommended Practice “Test Procedure For Measurement of Gaseous Exhaust Emissions From Small Utility Engines” June 1983
- California Code of Regulations, Title 13, (mail out #90-64) Sections 2400 through 2407 and Attachment C “Technical Support Document” California Exhaust Emissions Standards and Test Procedures for 1994 and Later Utility and Lawn & Garden Equipment Engines October 22 1990
- United States Environmental Protection Agency “Hand Held Composite Duty Cycle Report” 70 202 February 1995
- United States Environmental Protection Agency Certification Division Office of Mobile Sources and Office of Air & Radiation EPA-21a-2001 “Nonroad Engine and Vehicle Emissions Study” November 1991