Rotary valve internal combustion engine

Details Rotary valve internal combustion engine Rotary valve internal combustion engine

1988-01-13

1989-09-12

Cross, E. Rollins

Internal-combustion engines

Valve

Rotary

123190BA, 123190D, F01L 700

Patent

active

048649848

ABSTRACT:
An internal combustion engine (10) incorporating a rotary intake-exhaust valve (30). Intake exhaust valve (30) rotates between intake passage (36) and exhaust passage (34) such that intake-exhaust port (28) is aligned with intake passage (34) during the intake cycle and aligned with exhaust passage (34) during the exhaust cycle. Use of a rotary valve eliminates vibration normally found when reciprocating intake valve and exhaust valve are used and also provides weight saving due to simplified manufacturing processes, fewer parts and a higher strength engine wall due to elimination of one opening port into the engine. Valve (30) is operated by electro-mechanical means (40) so that the point in the power cycle at which air is admitted and exhausted may be varied. Means (40) may also be used to vary the length of time the exhaust port or intake port is open.

REFERENCES:
patent: 1095565 (1914-05-01), Ferres
patent: 1271344 (1918-07-01), Mattson
patent: 1284463 (1918-11-01), Russell
patent: 1340481 (1920-05-01), Francis
patent: 1513911 (1924-11-01), Keller et al.
patent: 1515052 (1924-11-01), Johnson
patent: 1528715 (1925-03-01), Whitten
patent: 2725043 (1955-11-01), Bacot
patent: 3730161 (1973-05-01), Deane

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