Rotary valve four-cycle engine

Details Rotary valve four-cycle engine Rotary valve four-cycle engine

1991-06-17

1992-03-17

Cross, E. Rollins

Internal-combustion engines

Valve

Rotary

123 80BA, 1231906, 1231908, F01L 702

Patent

active

050958704

ABSTRACT:
An internal combustion engine which includes a combustion head adapted to be bolted to the top of a cylinder block and includes a solid cylindrical rotary valve extending longitudinally in a complementary bore in the head which is parallel to the axis of the crankshaft of the engine. The valve has a pair of cutout passages respectively in different rotary angular positions relative to each cylinder in the engine and respectively comprising intake and exhaust passages that communicate respectively with gas inlet ports and exhaust outlet ports in the combustion head, thereby providing a simple substitute for poppet-type valves and the operating mechanism therefor in internal combustion gasoline engines.

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