JPH03107575U - - Google Patents
Info
- Publication number
- JPH03107575U JPH03107575U JP1657090U JP1657090U JPH03107575U JP H03107575 U JPH03107575 U JP H03107575U JP 1657090 U JP1657090 U JP 1657090U JP 1657090 U JP1657090 U JP 1657090U JP H03107575 U JPH03107575 U JP H03107575U
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- pressure chamber
- pressure
- valve body
- throttle hole
- 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
- 239000003507 refrigerant Substances 0.000 claims description 24
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Landscapes
- Safety Valves (AREA)
Description
第１図ないし第４図は本考案の第１実施例を示
し、第１図は遮断弁の断面図、第２図は第１図中
−線に沿う断面図、第３図は切換弁回りを拡
大した断面図、第４図は自然循環式空気調和装置
の冷媒サイクルを示す概略図、第５図および第６
図は本考案の第２実施例を示し、第５図は遮断弁
の断面図、第６図は遮断弁の側面図である。
３，１４……管路（冷房液側管路、暖房ガス側
管路）、２１……弁箱、２５……冷媒入口、２６
……冷媒出口、３２……圧力室、３５……圧力応
動部材、４０……弁体、５０……弾性体（圧縮コ
イルばね）、５２，５３，５４……冷媒通路、５
６……切換手段（切換弁）。
Figures 1 to 4 show a first embodiment of the present invention, with Figure 1 being a sectional view of the shutoff valve, Figure 2 being a sectional view taken along the line - in Figure 1, and Figure 3 showing the area around the switching valve. Figure 4 is a schematic diagram showing the refrigerant cycle of a natural circulation air conditioner, Figures 5 and 6 are enlarged cross-sectional views.
The figures show a second embodiment of the present invention, with FIG. 5 being a cross-sectional view of the shut-off valve, and FIG. 6 being a side view of the shut-off valve. 3, 14...Pipe line (cooling liquid side pipe, heating gas side pipe), 21...Valve box, 25...Refrigerant inlet, 26
... Refrigerant outlet, 32 ... Pressure chamber, 35 ... Pressure responsive member, 40 ... Valve body, 50 ... Elastic body (compression coil spring), 52, 53, 54 ... Refrigerant passage, 5
6...Switching means (switching valve).
Claims (1)
入口およびこの冷媒が流出する冷媒出口を有する
とともに、上記冷媒入口と冷媒出口とを連通させ
る絞り孔を有した弁箱と、 この弁箱の絞り孔を上記冷媒出口側から開閉す
る弁体と、 この弁体を上記絞り孔から離脱させる方向に常
時押圧する弾性体と、 上記冷媒入口に連続して上記弁箱に設けられた
圧力室と、 この圧力室に冷媒入口および冷媒出口の冷媒を
導入する冷媒通路と、 この冷媒通路に設けられ、上記圧力室と冷媒入
口および冷媒出口との連通を切換える切換え手段
と、 上記圧力室と冷媒入口との間に設けられ、上記
圧力室と冷媒入口との圧力差に応じて変位すると
ともに、この圧力差が所定の値を上回つた際に上
記弾性体を圧縮して、上記絞り孔を閉止する方向
に弁体を作動させる圧力応動部材と を具備したことを特徴とする冷媒遮断弁。[Claims for Utility Model Registration] A conduit through which a refrigerant filled at a predetermined pressure flows; a refrigerant inlet connected to the conduit through which the refrigerant flows; and a refrigerant outlet through which the refrigerant flows out; a valve body having a throttle hole that communicates the throttle hole with the refrigerant outlet; a valve body that opens and closes the throttle hole of the valve body from the refrigerant outlet side; and an elastic member that constantly presses the valve body in a direction to separate from the throttle hole. a pressure chamber provided in the valve box continuous with the refrigerant inlet; a refrigerant passage for introducing refrigerant at the refrigerant inlet and refrigerant outlet into the pressure chamber; and a refrigerant passage provided in the refrigerant passage and connected to the pressure chamber. A switching means for switching communication between the refrigerant inlet and the refrigerant outlet, and a switching means provided between the pressure chamber and the refrigerant inlet, the switching means being disposed in accordance with the pressure difference between the pressure chamber and the refrigerant inlet, and the switching means being disposed in accordance with the pressure difference between the pressure chamber and the refrigerant inlet. A refrigerant cutoff valve characterized by comprising: a pressure responsive member that compresses the elastic body and operates a valve body in a direction to close the throttle hole when the pressure exceeds a predetermined value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1657090U JP2515445Y2 (en) | 1990-02-21 | 1990-02-21 | Refrigerant shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1657090U JP2515445Y2 (en) | 1990-02-21 | 1990-02-21 | Refrigerant shutoff valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03107575U true JPH03107575U (en) | 1991-11-06 |
| JP2515445Y2 JP2515445Y2 (en) | 1996-10-30 |
Family
ID=31519831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1657090U Expired - Lifetime JP2515445Y2 (en) | 1990-02-21 | 1990-02-21 | Refrigerant shutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2515445Y2 (en) |
-
1990
- 1990-02-21 JP JP1657090U patent/JP2515445Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2515445Y2 (en) | 1996-10-30 |