Valve shutter control

Details Valve shutter control Valve shutter control

1993-12-06

1994-11-29

Wolfe, Willis R.

Internal-combustion engines

Four-cycle

Oscillating valve

1231885, F01L 510, F01L 512

Patent

active

053679890

ABSTRACT:
A valve system for controlling the opening and closing of the intake and exhaust ports of the internal combustion engine's cylinders consists of a shutter valve assembly which opens and closes a row of openings registering with the engine's combustion chamber. The shutter assembly includes a movable shutter ring having a plurality of shutter openings which either register with the intake ports during the intake cycle of the internal combustion engine or with the exhaust ports during the exhaust cycle of the internal combustion engine. A controller regulates the rotation of the shutter ring so that the appropriate ports are in communication with the cylinder for proper intake of fluid and air and the exhaust of fumes from the combustion. An engine management computer determines the precise opening and closing time of the intake and exhaust ports and initiates an electrical signal for commanding the controller to move the shutter ring to the appropriate position, thereby either closing or opening the intake and exhaust ports.

REFERENCES:
patent: 996339 (1911-06-01), Hoiland
patent: 1084977 (1914-01-01), Stevens
patent: 1310667 (1919-07-01), McCollum
patent: 1582195 (1926-05-01), Vallier
patent: 2401923 (1946-06-01), Heintz
patent: 3948241 (1976-04-01), Melchior
patent: 4163438 (1979-08-01), Guenther et al.
patent: 4481917 (1984-11-01), Rus et al.
patent: 4976227 (1990-12-01), Draper
patent: 5103780 (1992-05-01), Ishii

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