Browse Publications Technical Papers 1999-01-3280
1999-09-28

NEWPED - A Stealth Auxiliary Engine in a Bicycle with Very Low Noise, Low Pollutant Emission and Good Fuel Economy 1999-01-3280

The development history of a 30cc 2-stroke engine power unit in the covered rear wheel for retrofit into standard bicycle chassis. The rear wheel acts as cooling fan for the air cooled long stroke engine with catalyst exhaust system, autochoke carburetor, autolube oil pump, electric start and inertia start, single speed automatic transmission and 7 speed hub final drive. The space in the rear wheel contains intake air filter, exhaust system, fuel tank, oil tank and engine with drive train, the complete engine being only 94mm wide. The complete covered power unit is nearly undetectable as the rear wheel covers resemble road racing bicycles. There is very low stationary and pass-by noise (64 db[A]), no exhaust gas opacity or smell, very low vibration level and very good fuel economy up to 133 km/l. The paper highlights the development steps such as layout and design, acoustic & NVH analysis, FE analysis of stressed parts and acoustic features, thermodynamic layout and the development steps on the dynos.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Modeling, Validation and Analysis of the Fuel Supply and Injection System for NVH Improvement

2009-01-2055

View Details

TECHNICAL PAPER

A Novel Approach to Optimize the Resonators for Air Induction System

2016-01-1320

View Details

MAGAZINE

Automotive Engineering International 2004-09-01

AUTOSEP04

View Details

X