Dual compression and dual expansion engine

Details Dual compression and dual expansion engine Dual compression and dual expansion engine

1995-11-14

1997-04-29

McMahon, Marguerite

Internal-combustion engines

Reciprocating cylinder

Two-cycle

F02B 5900

Patent

active

056238940

ABSTRACT:
An improved dual compression and dual expansion internal combustion engine defined by an external housing with a first piston sleeve and a second piston sleeve, a reciprocating internal housing disposed within the external housing, the internal housing having a conical first piston member operatively disposed in the first piston sleeve to define a first compression chamber and a conical second piston member operably disposed in the second piston sleeve to define a second expansion chamber, and the internal housing further defining an operating chamber assembly with two reciprocating, opposed pistons disposed in a rotationally oscillating cylinder sleeve valve therein to form a combustion chamber, the cylinder sleeve valve providing selective flow connection from the first compression chamber to the combustion chamber and to the second expansion chamber from the combustion chamber.

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US Application No. 08/119,106 filed Apr. 1, 1991 entitled "Dual Compression and Dual Expansion Internal Combution Engine and method Therefor".

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