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:

    “The machine unmakes the man. Now that the machine is perfect, the engineer is nobody. Every new step in improving the engine restricts one more act of the engineer,—unteaches him.”
    —Ralph Waldo Emerson (1803–1882)