Two-port cartridge seat valve

Details Two-port cartridge seat valve Two-port cartridge seat valve

1994-07-15

1999-02-23

Walton, George L.

Valves and valve actuation

Fluid actuated or retarded

Pilot or servo type motor

251 44, 251 636, 137489, 1374925, F16K 31383, F16K 31124

Patent

active

058735615

ABSTRACT:
A two-port cartridge type seat valve has a valve sleeve with a stepped guide bore for a poppet. The poppet includes a piston flange that divides the second step of the guide bore axially into an end-face first pilot chamber and an annular second pilot chamber. A first connection channel through the valve sleeve connects the annular second pilot chamber with an annular chamber into which a lateral main flow port opens. The free cross-section of a valve seat and of an axial main flow bore correspond approximately to the cross-section of the first step of the guide bore.

REFERENCES:
patent: 2755058 (1956-07-01), Margrave
patent: 2841359 (1958-07-01), Berck
patent: 2882922 (1959-04-01), Schindel
patent: 3101924 (1963-08-01), Berck
patent: 3246669 (1966-04-01), Adams
patent: 3260275 (1966-07-01), Armstrong et al.
patent: 3315696 (1967-04-01), Hunter
patent: 3373763 (1968-03-01), Smilges et al.
patent: 3862738 (1975-01-01), Stumpmeier
patent: 3913885 (1975-10-01), Greenwood et al.
patent: 4340086 (1982-07-01), Hemm et al.
patent: 4478245 (1984-10-01), Bender
patent: 4494726 (1985-01-01), Kumar et al.
patent: 4531540 (1985-07-01), Meister
patent: 4535966 (1985-08-01), Post et al.
patent: 4548231 (1985-10-01), Schwede
patent: 4848721 (1989-07-01), Chudakov
patent: 4865074 (1989-09-01), Bickford et al.
patent: 4896694 (1990-01-01), Rausch
patent: 4972870 (1990-11-01), Changnian et al.
patent: 5404902 (1995-04-01), Wen
David C. Downs, "Cartridge Check Valves: New option for hydraulic control," Machine Design, vol. 52, No. 28, Dec. 1980, Cleveland, Ohio, pp. 143-147.
D.G. Feldmann, "Systematik des Aufbaus von Steuerungen mit 2-Wege-Einbauventilen," Olhydraulik Und Pneumatik, vol. 22, No. 6, Jun. 1978, Mainz, Germany, pp. 337-341.
B. Mougeot, "Distributeurs hydrauliques a clapet pilote a la fermeture," Energie Fluide, vol. 25, No. 2, Mar. 1986, Paris, France, pp. 41-44.

Affiliated with

Also associated with

Rating

Two-port cartridge seat valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two-port cartridge seat valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-port cartridge seat valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-300109