JPH01176784U - - Google Patents
Info
- Publication number
- JPH01176784U JPH01176784U JP7416288U JP7416288U JPH01176784U JP H01176784 U JPH01176784 U JP H01176784U JP 7416288 U JP7416288 U JP 7416288U JP 7416288 U JP7416288 U JP 7416288U JP H01176784 U JPH01176784 U JP H01176784U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- suction
- shaft sealing
- casing
- shaft
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
Landscapes
- Rotary Pumps (AREA)
Description
第１〜４図は本考案に係る圧縮機の一実施例を
示す図であり、第１図はその正面断面図、第２図
はそのヘツドカバーの背面図、第３図はその逆止
弁の構成を示す第１図の部分拡大図、第４図はそ
の圧縮機の運転状態に対応した吸入圧力および吐
出圧力の変化を示すグラフ、第５図は従来例を示
すその要部断面図である。
１１……ケーシング、１４……吸入口、１８…
…吸入室、２０……圧縮室、２１，２２……回転
軸、２５……軸封装置、２７……軸封室、３０…
…逆止弁。
Figures 1 to 4 are views showing one embodiment of the compressor according to the present invention, with Figure 1 being a front sectional view thereof, Figure 2 being a rear view of its head cover, and Figure 3 being a view of its check valve. Fig. 1 is a partially enlarged view showing the configuration, Fig. 4 is a graph showing changes in suction pressure and discharge pressure corresponding to the operating state of the compressor, and Fig. 5 is a sectional view of the main part showing a conventional example. . 11...Casing, 14...Intake port, 18...
... Suction chamber, 20... Compression chamber, 21, 22... Rotating shaft, 25... Shaft sealing device, 27... Shaft sealing chamber, 30...
…non-return valve.
Claims (1)
入ガスが導入される吸入室と、ケーシング内に形
成され、吸入室を通して吸入した吸入ガスを圧縮
する圧縮室と、ケーシングを貫通してケーシング
に軸支される回転軸と、吸入室を封止するようケ
ーシングと回転軸の間に介装された軸封装置を収
装する軸封室と、を備えた圧縮機において、前記
軸封室を吸入口と吸入室との事に形成するととも
に、軸封室と吸入室の間に逆止弁を設け、該逆止
弁により圧縮室からの高圧のガスが軸封室に逆流
するのを防止して軸封室を常に低圧に維持するよ
うにしたことを特徴とする圧縮機。 A suction chamber is formed inside the casing and introduces low-pressure suction gas from the suction port.A compression chamber is formed inside the casing and compresses the suction gas sucked in through the suction chamber. In the compressor, the shaft sealing chamber is provided with a rotating shaft that is connected to the suction port, and a shaft sealing chamber that houses a shaft sealing device that is interposed between the casing and the rotating shaft so as to seal the suction chamber. and a suction chamber, and a check valve is provided between the shaft sealing chamber and the suction chamber, and the check valve prevents high-pressure gas from the compression chamber from flowing back into the shaft sealing chamber. A compressor characterized in that the shaft sealing chamber is always maintained at a low pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7416288U JPH01176784U (en) | 1988-06-02 | 1988-06-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7416288U JPH01176784U (en) | 1988-06-02 | 1988-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01176784U true JPH01176784U (en) | 1989-12-18 |
Family
ID=31299280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7416288U Pending JPH01176784U (en) | 1988-06-02 | 1988-06-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01176784U (en) |
-
1988
- 1988-06-02 JP JP7416288U patent/JPH01176784U/ja active Pending
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