Patent ID: 8100094

Claim:
An engine comprising: a first movable member configured to rotate about a first pivot axis, the first movable member having a first distal edge portion and a first curved surface; a second movable member operably coupled to the first movable member to at least partially define a combustion chamber therebetween, the second movable member configured to rotate about a second pivot axis and having a second distal edge portion and a second curved surface; means for introducing an air/fuel mixture into the combustion chamber; means for igniting the air/fuel mixture in the combustion chamber to drive the first movable member in rotation about the first pivot axis and the second movable member in rotation about the second pivot axis, as the first distal edge portion slides across the second curved surface and the second distal edge portion simultaneously slides across the first curved surface; and means for exhausting the ignited air/fuel mixture from the combustion chamber.