Title:
流量制御弁
Document Type and Number:
Japanese Patent JP4237781
Kind Code:
B2
Abstract:
A compact flow control valve with high flow stability is arranged to comprises: a valve body made of resin including; a first passage formed in the valve body; a valve port communicating with the first passage; and a valve seat formed around the valve port; a valve element movable into contact with and away from the valve seat; a valve chamber formed around the valve seat; a second passage communicating with the valve chamber; and a flow adjustment rod for adjusting a flow rate of a fluid allowed to flow in the valve chamber, wherein the flow adjustment rod is adjustable in position to change an opening degree of the valve element relative to the valve seat for adjusting the flow rate, and the flow control valve further comprises an annular recess formed in an inner periphery of the valve seat formed surrounding the valve port and configured to prevent radial deformation of the valve port when the valve element is moved into contact with the valve seat.
Inventors:
Kiyoshi Nagai
Application Number:
JP2006179811A
Publication Date:
March 11, 2009
Filing Date:
June 29, 2006
Export Citation:
Assignee:
CKD Corporation
International Classes:
F16K7/17; F16K31/122
Domestic Patent References:
| JP10274345A | ||||
| JP2003322275A | ||||
| JP2004316679A | ||||
| JP4111966U | ||||
| JP2004044673A | ||||
| JP2003314745A | ||||
| JP2003294165A |
Attorney, Agent or Firm:
Patent Business Corporation Cosmos Patent Office