Title:
VALVE DEVICE
Document Type and Number:
Japanese Patent JP2016090030
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a valve device which has high low noise performance, and which can be easily achieved by using a metal laminate molding method.SOLUTION: A valve device includes: a valve mechanism which comprises a valve seat 2 and a vale body 3 for openably/closably blocking a circulation hole provided at the valve seat 2, and which is provided at a middle part of a circulation passage 4; and a decompression mechanism which decompresses a fluid passing through a circulation gap between the valve body 3 and the valve seat 2. The decompression mechanism is configured in such a manner that at a cylindrical body 5 provided so as to surround the circulation gap between the valve body 3 and the valve seat 2 generating when the circulation passage 4 is opened, a number of fluid passing holes 6 where the fluid flowing in the cylindrical body 5 flows out are provided in a penetrating state. The fluid passing hole 6 has a meander flow passage part in which a meander-like flow passage is formed by providing a plurality of flow straightening plates alternately left and right, and a porous flow passage part provided on a downstream side of the meander flow passage part, and formed by a plurality of outflow holes 9 having a diameter smaller than that of the meander flow passage part.SELECTED DRAWING: Figure 1
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Inventors:
MIHASHI EIJI
Application Number:
JP2014229034A
Publication Date:
May 23, 2016
Filing Date:
November 11, 2014
Export Citation:
Assignee:
DRESSER JAPAN:KK
International Classes:
F16K47/02; F16K3/24
Attorney, Agent or Firm:
Tsuyoshi Yoshii
Masae Yoshii
Masae Yoshii