JPH03110285U

JPH03110285U -

Info

Publication number: JPH03110285U
Application number: JP1967290U
Authority: JP
Priority date: 1990-02-27
Filing date: 1990-02-27
Publication date: 1991-11-12

Description

[Brief explanation of drawings]

第１図ａ及びｂは本考案の一実施例の２つの状
態のそれぞれにおける断面図、第２図は第１図ａ
のＡ−Ａ線におけるスプール５の断断面図、第３
図は温度制御系の一例のブロツク図、第４図は従
来の流量制御バルブの一例の断面図である。１……ケーシング、２，３，４……ポート、５
，６……スプール、７……連結棒、８……バイア
スばね、９……ＳＭＡばね、１０……バイパス管
、１１……ニードルバルブ。 Figures 1a and b are cross-sectional views of an embodiment of the present invention in two states, respectively, and Figure 2 is the same as Figure 1a.
A cross-sectional view of the spool 5 taken along the line A-A of FIG.
The figure is a block diagram of an example of a temperature control system, and FIG. 4 is a sectional view of an example of a conventional flow rate control valve. 1...Casing, 2, 3, 4...Port, 5
, 6... Spool, 7... Connecting rod, 8... Bias spring, 9... SMA spring, 10... Bypass pipe, 11... Needle valve.

Claims

[Claims for Utility Model Registration] 1. A tube having a first end closed and an opening at a second end, and tubes arranged at sequential intervals from the first end to the second end of the tube. first, second, and third branch pipes each opening in a wall; first and second columnar bodies each having a hollow portion that slides inside the pipe and penetrates between both bottom surfaces; and a connecting rod that connects second columnar bodies at intervals; and a connecting rod that connects the first columnar body and the tube that are located on the first end side of the tube among the first and second columnar bodies. a bias spring disposed between the first end;
A shape memory alloy spring disposed between the second end of the tube and the second columnar body connects the opening of the second end of the tube and the third branch tube. a bypass pipe, wherein the first columnar body completely closes the opening of the first branch pipe and bypasses the second branch pipe.
and the opening of the third branch pipe is not blocked at all by either the first columnar body or the second columnar body, and the second columnar body is closed by the second columnar body. The opening of the third branch pipe is completely blocked, and the openings of the first and second branch pipes are not blocked at all by either the first columnar body or the second columnar body. The lengths of the first and second columnar bodies, the length of the connecting rod, the distance between the first branch pipe and the second branch pipe, the second branch pipe and the the distance from the third branch pipe, and the first,
A flow control valve characterized in that the diameters of the openings of the second and third branch pipes are set. 2. Claim 1, further comprising an adjustment valve that adjusts the flow rate of fluid flowing into the bypass pipe.
Flow control valve as described.