Metering valve

Details Metering valve Metering valve

1986-03-10

1987-08-18

Scott, Samuel

Valves and valve actuation

With material guide or restrictor

Movable or resilient guide or restrictor

251205, 251214, 251900, 251903, F16K 4700

Patent

active

046871802

ABSTRACT:
A metering valve having a one-piece bonnet for reducing problems resulting from tolerance stack up. A guide portion is included on the nose of the bonnet for cooperation with a valve body bore to ensure concentric alignment between the metering pin and its associated orifice. A pair of O-rings on the valve stem cooperate with the bonnet bore to absorb forces and substantially reduce the potential for galling and breakage of the metering pin. One of the O-rings is compressed to a substantially greater extent than the other to aid in achieving better alignment between the stem and bonnet, and to obtain a firmer feel.

REFERENCES:
patent: 2593193 (1952-04-01), Rockwell
patent: 2917271 (1959-12-01), Banks
patent: 2980392 (1961-04-01), Greenwood
patent: 3070117 (1962-12-01), Callahan et al.
patent: 3086749 (1963-04-01), Frye
patent: 3228655 (1966-01-01), Weise
patent: 3280836 (1966-10-01), Callahan, Jr. et al.
patent: 3410521 (1968-11-01), Sowers, III et al.
patent: 3538951 (1970-11-01), Bownass
patent: 3727879 (1973-04-01), Lange et al.
patent: 3765448 (1973-10-01), Dussia
patent: 3910553 (1979-01-01), Boylan
patent: 4134572 (1979-01-01), Schmidt

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