Uniflow Scavenging

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Uniflow Scavenging

 

the process of removing exhaust gases from a cylinder of a two-stroke engine and filling the cylinder with a fresh charge. In the process, the fresh charge is forced through scavenging ports, and the exhaust gases are discharged through exhaust ports or special valves located at the other end of the cylinder. The ports are opened and closed by the piston as it moves within the cylinder. In diesel engines, uniflow scavenging is performed by pure air and in carburetor engines, by the fuel-air mixture.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.