JPS62179577U - - Google Patents
Info
- Publication number
- JPS62179577U JPS62179577U JP6736386U JP6736386U JPS62179577U JP S62179577 U JPS62179577 U JP S62179577U JP 6736386 U JP6736386 U JP 6736386U JP 6736386 U JP6736386 U JP 6736386U JP S62179577 U JPS62179577 U JP S62179577U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- passage
- valve seat
- electric expansion
- rear chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Lift Valve (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Description
第１図はこの考案の一実施例における電動膨張
弁を示す断面図、第２図は従来の電動膨張弁の断
面図である。
１……弁本体、２……第１通路、３……第２通
路、４……流路、５……第１弁座、６……ケース
、７……後室、１９……弁棒、２４……弁棒案内
部、２５……第２弁座、２６……摺動部、２８…
…第２弁部、３０……均圧通路。
FIG. 1 is a sectional view showing an electric expansion valve according to an embodiment of this invention, and FIG. 2 is a sectional view of a conventional electric expansion valve. 1... Valve body, 2... First passage, 3... Second passage, 4... Channel, 5... First valve seat, 6... Case, 7... Rear chamber, 19... Valve stem , 24...Valve stem guide portion, 25...Second valve seat, 26...Sliding portion, 28...
...Second valve part, 30...Pressure equalization passage.
Claims (1)
両通路２，３を弁本体１内に穿設した流路４を介
して連通させると共に、上記流路４には第１弁座
５を設け、また上記第１弁座５に当接、離反して
上記流路４を開閉するための第１弁部２０を先端
側に有する弁棒１９を上記弁本体１内に摺動自在
に配置し、一方上記弁本体１の背部をケース６で
密閉状に覆うことによつて形成された後室７内に
上記弁棒１９の基端側を導出した電動膨張弁であ
つて、上記弁本体１にはさらに、上記第１弁座５
よりも第１通路２寄りの流路４ａと上記後室７と
に連通すると共に上記第１弁座５と略同径でかつ
略同軸に配置された弁棒案内部２４を設け、また
弁棒案内部２４と上記後室７との間には上記第１
弁座５と略同径の第２弁座２５を設け、一方上記
弁棒１９には、さらに上記弁棒案内部２４に案内
される摺動部２６と、上記第１弁部２０が上記第
１弁座５に当接すると略同時に上記第２弁座２５
に当接する第２弁部２８とを設け、また上記第２
通路３と上記後室７とを連通する均圧通路３０を
有していることを特徴とする電動膨張弁。 ２ 実用新案登録請求の範囲第１項記載の電動膨
張弁であつて、上記均圧通路３０が上記弁棒１９
に穿設されていることを特徴とする電動膨張弁。[Claims for Utility Model Registration] 1. First and second passages 2, 3 are provided in the valve body 1,
Both passages 2 and 3 communicate with each other via a passage 4 bored in the valve body 1, and a first valve seat 5 is provided in the passage 4, and the passages 2 and 3 are in contact with and separated from the first valve seat 5. A valve stem 19 having a first valve portion 20 on the tip side for opening and closing the flow path 4 is slidably arranged inside the valve body 1, while the back of the valve body 1 is sealed with a case 6. The electric expansion valve is an electric expansion valve in which the proximal end side of the valve stem 19 is led out into the rear chamber 7 formed by covering the valve stem 19 in the form of a rear chamber 7, and the valve body 1 further includes the first valve seat 5.
A valve stem guide portion 24 is provided which communicates with the flow passage 4a closer to the first passage 2 and the rear chamber 7, and which has approximately the same diameter and is disposed approximately coaxially with the first valve seat 5. Between the guide part 24 and the rear chamber 7, the first
A second valve seat 25 having approximately the same diameter as the valve seat 5 is provided, and the valve stem 19 further includes a sliding portion 26 guided by the valve stem guide portion 24, and the first valve portion 20 is provided with a sliding portion 26 that is guided by the valve stem guide portion 24. Almost at the same time as the first valve seat 5 comes into contact with the second valve seat 25, the second valve seat 25
a second valve portion 28 that abuts on the second valve portion 28;
An electric expansion valve characterized by having a pressure equalizing passage 30 that communicates a passage 3 with the rear chamber 7. 2. The electric expansion valve according to claim 1, wherein the pressure equalizing passage 30 is connected to the valve stem 19.
An electric expansion valve characterized by being bored in the.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6736386U JPH0434372Y2 (en) | 1986-05-02 | 1986-05-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6736386U JPH0434372Y2 (en) | 1986-05-02 | 1986-05-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62179577U true JPS62179577U (en) | 1987-11-14 |
| JPH0434372Y2 JPH0434372Y2 (en) | 1992-08-17 |
Family
ID=30906202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6736386U Expired JPH0434372Y2 (en) | 1986-05-02 | 1986-05-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0434372Y2 (en) |
-
1986
- 1986-05-02 JP JP6736386U patent/JPH0434372Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0434372Y2 (en) | 1992-08-17 |
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