Patent ID: 7784436
Filing Date: 2010-08-31
Classification: F01P,F02B,F02F,F16H

Abstract:
1. An internal combustion engine, comprising: an engine frame; first and second side-mounted crankshafts rotatably supported on the frame; a cylinder with a bore supported on the engine frame; first and second opposed pistons for reciprocating in the bore so as to protrude from the bore during at least a portion of an operating cycle of the engine; rods connecting each piston to both crankshafts; each piston including a crown and a skirt with inner and outer surfaces; a first coolant manifold supported on the engine frame; a first dispenser extending from the first coolant manifold into the first piston and aimed at the crown of the first piston; a second coolant manifold supported on the engine frame; a second dispenser extending from the second coolant manifold into the second piston and aimed at the crown of the second piston; and a coolant supply system connected to the first and second coolant manifolds for supplying liquid coolant under pressure to the first and second coolant manifolds.