Valve device having a long adjustment stroke

Details Valve device having a long adjustment stroke Valve device having a long adjustment stroke

2006-12-19

2006-12-19

Jacyna, J. Casimer (Department: 3751)

Valves and valve actuation

Electrically actuated valve

Rotary electric actuator

C251S209000, C251S309000

Reexamination Certificate

active

07150445

ABSTRACT:
The invention provides a control valve device enabling the positioning precision of its abutment to be reduced without reducing the overall control precision of the valve. For this purpose, the valve device comprises a valve body defining a fluid flow duct in which there is disposed a shutter element turned by an actuator by means of a drive shaft. The shutter element is formed by a skirt presenting a notch forming an opening in the wall of the skirt. The notch is shaped in such a manner as to define a variable flow passage in the duct as a function of the angular position of the shutter element between an open position in which the notch co-operates in full with the duct, and a closed position in which said skirt closes the duct.

REFERENCES:
patent: 1048635 (1912-12-01), Allerding
patent: 1397867 (1921-11-01), Jones
patent: 3052445 (1962-09-01), Kessler
patent: 3314643 (1967-04-01), Sachnik
patent: 3379408 (1968-04-01), Lowrey
patent: 3409270 (1968-11-01), Hulsey
patent: 4846213 (1989-07-01), Hutchens et al.
patent: 4989833 (1991-02-01), Polon
patent: 951 789 (1956-10-01), None
patent: 0 524 589 (1993-01-01), None

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