Importance

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Abstract

A linear reciprocating engine may include a cylinder having a first combustion chamber at one end and a second combustion chamber at an opposing end, first and second cylinder heads located at an end of the first and second combustion chambers, respectively, and a double-faced piston slidably mounted within the cylinder. The engine may further include a first piston rod portion having a first recess extending from a first face of the double-faced piston through the first combustion chamber, and a second piston rod portion having a second recess extending from a second face of the piston through the second combustion chamber. The engine may further include at least one port in a peripheral wall of the cylinder, for alternatively communicating gases between at least one region external to the cylinder and at least one of the first combustion chamber and the second combustion chamber.

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First Claim