Estimation of the Fresh Mixture Leakages During the Scavenging of Two-Stroke Engines 891804
During the scavenging of a two-stroke engine, it can be assumed that a very small quantity of fresh mixture flows from the scavenging ports and also from the crankcase through the gap between the cylinder and the piston to the exhaust port, in order to assess the effects of these leakages on fuel economy and hydrocarbon emissions, the authors calculated the quantity of mixture lost using the time-areas of the flow paths and the pressure-time history in the crankcase, and found that this quantity was in the order of 1-3% of the inducted fresh mixture.
Citation: Ishihara, S. and Murakami, Y., "Estimation of the Fresh Mixture Leakages During the Scavenging of Two-Stroke Engines," SAE Technical Paper 891804, 1989, https://doi.org/10.4271/891804. Download Citation
Author(s):
Soichi Ishihara, Yoshio Murakami
Affiliated:
Faculty of Science and Technology, Meijo Univ.
Pages: 12
Event:
Small Engine Technology Conference & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Small Engine Technology Conference Proceedings-P-224
Related Topics:
Hydrocarbons
Two stroke engines
Fuel economy
Crankcases
Engine cylinders
Pistons
Scavenging
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