Valve with a crenellated seat

Details Valve with a crenellated seat Valve with a crenellated seat

1992-11-18

1994-06-07

Rosenthal, Arnold

Valves and valve actuation

With material guide or restrictor

Movable or resilient guide or restrictor

251333, 13762533, F16K 4702

Patent

active

053182707

ABSTRACT:
The present invention relates to a valve including a valve member co-operating with a seat provided with a crenellated portion disposed around the portion of the seat on which the valve member rests, said crenellated portion being constituted by teeth separated by gaps, the inside walls of the teeth being portions of a vertical axis cylinder, the width l of the gaps being less than the width b of the inside walls of the teeth, wherein the end wall of the valve member facing the crenellated portion when the valve member is in its closed position is convex in shape, co-operating with the inside wall of each tooth to form a channel that flares from top to bottom of the tooth, the point of contact C between the valve member and the seat being at a distance d from the base B of the crenellated portion lying in the range 0.25 times to 0.5 times the width l of the gap. Vibrations are eliminated at partial load and pressure fluctuations downstream from the valve are reduced.

REFERENCES:
patent: 3857542 (1974-12-01), Heymann
patent: 4705071 (1987-11-01), Conners, Jr. et al.
patent: 4892118 (1990-01-01), Davis et al.
patent: 5150736 (1992-09-01), Vincent de Paul et al.

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