Two-Stroke Direct Injection Spark Ignition Engine for Two Wheelers

Document Number: 2001-01-1842

Date Published: December 2001

Author(s):
M. Gambino - Istituto Motori - CNR
S. Iannaccone - Istituto Motori - CNR

Abstract:
Two-stoke engine for mopeds and motorcycles is reaching an important appointment for its survival. In fact, already with the introduction of EURO 1 emission limits, it was necessary to modify some components of the propulsion apparatus in order to reduce especially the huge amount of HC emissions, due to the mixture losses during the scavenging.

It was demonstrated that an effective solution to lessen emissions, including benzene, from current two-stroke engines for two wheelers, could be retrofitting circulating vehicles with a catalyst. But this is not enough to comply with the future more stringent European limits.

A powerful solution has been suggested by important Italian two-wheeler manufactures based on the direct injection of gasoline, during the compression stroke, when the exhaust port is closed. The engine is described in the paper, in terms of performance and emissions, and the main results are reported.

File Size: 184K
Product Status: In Stock

Purchase more technical papers and save! With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay. Learn more >