Cyclo-valve for internal combustion engines

Details Cyclo-valve for internal combustion engines Cyclo-valve for internal combustion engines

1999-07-28

2000-08-01

McMahon, Marguerite

Internal-combustion engines

Valve

Rotary

12319014, F01L 700

Patent

active

060951060

ABSTRACT:
Presented is a new rotary or cyclo-valve system for engines, such as internal combustion engines, that greatly simplifies the valve system for such engines. The cyclo-valve simply rotates to align its gas passageways with inlets to or outlets from engine cylinders in time with the combustion and exhaust cycles of the engine. The cyclo-valves themselves may be in the form of a rotary shaft, discs, or similar rotating elements. There are no valve lifters and no valve "float" at high engine rotational speeds as there are with state-of-the-art engines. Gas passageways, while preferred to be through the cyclo-valve, may also pass, at least partially, external to the cyclo-valve. In the preferred embodiment, sealing is at least partially accomplished by labyrinth seals. The instant invention cyclo-valve may be applied to all manner of engine including piston, rotary such as the Wankel, etc.

REFERENCES:
patent: 4976227 (1990-12-01), Draper
patent: 4989576 (1991-02-01), Coates
patent: 5417188 (1995-05-01), Schiattino
patent: 5524579 (1996-06-01), Eluchans

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