Oscillating oil cylinder:

The simple intro to the Oscillating oil cylinder:

A modified two-cycle internal combustion engine with cylinders generally radially mounted within a housing and oscillating from true radial disposition during each cycle of the engine, the trunnions supporting the cylinders being fixed relative to the housing and being tubular and functioning as fuel inlets with valving ports to the cylinders closed and opened as the cylinders oscillate. As disclosed the engine is of pancake form with a master bearing plate rotatively mounted on a single throw crankshaft and connected by wrist pins with pistons. Each cylinder has an individual jacket and coolant is circulated from exterior of the housing into these jackets individually and thence into the relatively large volume interior of the housing and then returned for maximal cooling and since the coolant will ordinarily be oil in a closed pressurized system this oil also provides adequate lubrication.