Abstract: A planocentric drive mechanism is disclosed which includes a plurality of longitudinally extending pins arranged in a circle about an axis of rotation, a rotating shaft which carries an eccentric cam, and a pinion gear which is rotatably carried by the eccentric cam. The pinion gear has a plurality of apertures formed therethrough, within which the pins are disposed, thereby limiting the pinion gear to oscillation. An output shaft is aligned with and rotatably about the axis of rotation, and includes a plurality of second pins which mesh with cycloidal teeth disposed about the periphery of the pinion gear.

Abstract: A V-twin, two-stage compressor has valve plates disposed between the head and cylinder of each stage and mounting free-floating flexible read intake and exhaust valves therein. The flexible reeds are movably captured between the floors of respective reed recesses, and separate, non-fixed keeper bars are disposed over, but slightly spaced from, the reeds. Keeper bars over the exhaust reed extend above the valve plate for engagement by the head. A restrictor plate lies within a valve plate recess on keeper bars over the intake valve. A cored crankshaft providing motor drive shaft lubrication, and a removable counterweight providing crankshaft use with one-piece connecting rods is disclosed. A cooling fan is driven by the removable counterweight and V-shaped fan shroud projections direct cooling air over the cylinders and heads while another cooling air port directs air over an intercooler.

Abstract: A V-twin, two stage compressor has valve plates disposed between the head and cylinder of each stage and mounting free-floating flexible reed intake and exhaust valves therein. The flexible reeds are movably captured between the floors of respective reed recesses, and separate, non-fixed keeper bars are disposed over, but slightly spaced from, the reeds. Keeper bars over the exhaust reed extend above the valve plate for engagement by the head. A restrictor plate lies within a valve plate recess on keeper bars over the intake valve. A cored crankshaft providing motor drive shaft lubrication, and a removable counter-weight providing crankshaft use with one-piece connecting rods is disclosed. A cooling fan is driven by the removable counterweight and V-shaped fan shroud projections direct cooling air over the cylinders and heads while another cooling air port directs air over an intercooler.

Abstract: A V-twin, two-stage compressor has valve plates disposed between the head and cylinder of each stage and mounting free-floating flexible reed intake and exhaust valves therein. The flexible reeds are movably captured between the floors of respective reed recesses, and separate, non-fixed keeper bars are disposed over, but slightly spaced from, the reeds. Keeper bars over the exhaust reed extend above the valve plate for engagement by the head. A restrictor plate lies within a valve plate recess on keeper bars over the intake valve. A cored crankshaft providing motor drive shaft lubrication, and a removable counterweight providing crankshaft use with one-piece connecting rods is disclosed. A cooling fan is driven by the removable counterweight and V-shaped fan shroud projections direct cooling air over the cylinders and heads while another cooling air port directs air over an intercooler.