Design and testing of a four-stroke, EFI snowmobile with catalytic exhaust treatment

Document Type

Conference Proceeding

Publication Date

9-24-2001

Department

Department of Mechanical Engineering-Engineering Mechanics

Abstract

The successful implementation of a clean, quiet, four-stroke engine into an existing snowmobile chassis has been achieved. The snowmobile is easy to start, easy to drive and environmentally friendly. The following paper describes the conversion process in detail with actual engine test data. The hydrocarbon emissions of the new, four-stroke snowmobile are 98% lower than current, production, two-stroke models. The noise production of the four-stroke snowmobile was 68 dBA during an independent wide open throttle acceleration test. If the four-stroke snowmobile were to replace all current, two-stroke snowmobiles in Yellowstone National Park (YNP), the vehicles would only produce 16% of the combined automobile and snowmobile hydrocarbon emissions compared to the current 93% produced by two-stroke snowmobiles.

Publisher's Statement

Copyright © 2001 Society of Automotive Engineers, Inc. Publisher’s version of record: https://doi.org/10.4271/2001-01-3657

Publication Title

SAE Technical Papers

Link to Full Text

Share

COinS