Opposed-piston Engine

An opposed-piston engine is a reciprocating internal combustion engine in which each cylinder has a piston at both ends, and no cylinder head.

Read more about Opposed-piston Engine:  Configurations, Assembly and Function, Free-piston Engine

Famous quotes containing the word engine:

    There is a small steam engine in his brain which not only sets the cerebral mass in motion, but keeps the owner in hot water.
    —Unknown. New York Weekly Mirror (July 5, 1845)