Opposed piston engine

Details Opposed piston engine Opposed piston engine

2008-04-22

2008-04-22

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Cooling

Internal cooling of moving parts; e.g., hollow valves,...

C123S041340, C123S0510BA

Reexamination Certificate

active

07360511

ABSTRACT:
A two-cycle, opposed piston engine with side-mounted crankshafts and cylinders isolated from mechanical stresses of the engine includes tailored cooling of cylinders and symmetrical cooling of the interior surfaces of piston crowns. Each opposed piston includes a compliant member that permits movement of an axially-centered rod mounted in the piston in order to maintain axial alignment with the bore of a cylinder in which the piston is disposed during engine operation. A single wristpin is disposed externally of the piston to connect the piston with connecting rods that run between the piston and the crankshafts.

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