JPS61565U - 3 position 3 port valve - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の実施例の断面図、第２図はその異なる
実施例の断面図、第３図はそれらを用いた複動アクチュ
エータ駆動回路の一例を示す構成図、第４図は従来の３
ポート弁を用いたアクチュエータ駆動回路の一例を示す
構成図である。 ２９ ３ ２ｙ ６ ２ ａｔ ６’３ ａ・・・・・
・第１ポート、３，３３，６２ｂ，６３ｂ・・・・・・
第２ポート、４，３ ４， ６ ２ Ｃ， ６ ３ ｃ
・・・・・・第３ポート、５ａ，３５ａ・・・・・・第
１弁座、５ｂ，３５ｂ・・・・・・第２弁座、６ ａｓ
３ ６ ａ””−第１弁体、６ ｂ， ３ ６ ｂ−
−−−−−第−２弁体、１ １ ａ， ３ ７ ａ＝第
１背室、１１ｂ，３ ７ ｂ−−−−−−第２背室、１
２ ａ， １ ２ ｂ， ３ ８ ａ，３８ｂ・・
・・・・均圧孔、１３ａ＊３９ａ・・・・・・第１ばね
、１３ｂ，３９ｂ・・・・・・第２ばね。Fig. 1 is a sectional view of an embodiment of the present invention, Fig. 2 is a sectional view of a different embodiment thereof, Fig. 3 is a configuration diagram showing an example of a double-acting actuator drive circuit using them, and Fig. 4 is a conventional one. No. 3
FIG. 2 is a configuration diagram showing an example of an actuator drive circuit using a port valve. 29 3 2y 6 2 at 6'3 a...
・1st port, 3, 33, 62b, 63b...
2nd port, 4, 3 4, 6 2 C, 6 3 C
......Third port, 5a, 35a...First valve seat, 5b, 35b...Second valve seat, 6 as
3 6 a””-first valve body, 6 b, 3 6 b-
------Second valve body, 1 1 a, 3 7 a = first back chamber, 11 b, 3 7 b --- Second back chamber, 1
2 a, 1 2 b, 3 8 a, 38 b...
...Pressure equalization hole, 13a*39a...First spring, 13b, 39b...Second spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 第１ポートと第２及び第３ポートとの間の第１及び第２
弁座を互いに背向状態に設け、これらの弁座を第１及び
第２弁体でそれぞれ開閉するようにしたものにおいて、
上記第１及び第２弁体の背後に区画形成される第１及び
第２背室を両弁体に穿設した均圧孔によってそれぞれ第
１ポートに連通させると共にミそれらの背室内に第１及
び第２弁体をそれぞれの弁座に向けて付勢する第１及び
第２ばねを縮設し、上記第１及び第２弁体に両者を閉鎖
できると同時にその両者をそれぞれ独立的に開閉できる
開閉機構を設けたことを特徴とする３位置３ポート弁。the first and second ports between the first port and the second and third ports;
In one in which valve seats are provided opposite to each other and these valve seats are opened and closed by first and second valve bodies, respectively,
The first and second back chambers defined behind the first and second valve bodies are communicated with the first port through pressure equalizing holes formed in both the valve bodies, respectively, and a first and a first and second spring that urges the second valve body toward its respective valve seat, so that both can be closed on the first and second valve bodies, and at the same time, both can be opened and closed independently. A 3-position, 3-port valve characterized by being equipped with an opening/closing mechanism.