Title:
FLUID FORCE COMPENSATING METHOD AND SPOOL-TYPE FLOW CONTROL VALVE
Document Type and Number:
Japanese Patent JP3506409
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To generate the required swirling flow without making a bucket into a complicated shape.
SOLUTION: In a method for compensating for fluid force of a flow control valve having a passage structure in which a spool 1 is supported in a sleeve S by a static bearing 19, and fluid from the static bearing 19 is allowed to flow into a valve space 16 of a land 2 of the spool 1 and the circumferential groove of the sleeve S, a circumferential groove 4 is formed on the land 2 of the spool 1, fluid from the bearing is allowed to axially flow to the space 16 formed of the circumferential groove 4 and the sleeve S, and the control flow is swirled by the bearing flow to compensate for fluid force.
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Inventors:
Kei Takahashi
Yuichi Usami
Yuichi Usami
Application Number:
JP34843096A
Publication Date:
March 15, 2004
Filing Date:
December 26, 1996
Export Citation:
Assignee:
Ebara Corporation
International Classes:
F16K3/26; F16K11/07; F16K35/00; F16K25/00; F16K39/04; (IPC1-7): F16K25/00; F16K3/26; F16K11/07
Domestic Patent References:
| JP4191507A | ||||
| JP9269084A | ||||
| JP51115329A | ||||
| JP1026251A | ||||
| JP293104A | ||||
| JP6348067U | ||||
| JP6034154U | ||||
| JP614081Y2 | ||||
| JP8507591A |
Attorney, Agent or Firm:
Toshitada Takahashi (1 outside)
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