JPS6247792U - - Google Patents
Info
- Publication number
- JPS6247792U JPS6247792U JP14038985U JP14038985U JPS6247792U JP S6247792 U JPS6247792 U JP S6247792U JP 14038985 U JP14038985 U JP 14038985U JP 14038985 U JP14038985 U JP 14038985U JP S6247792 U JPS6247792 U JP S6247792U
- Authority
- JP
- Japan
- Prior art keywords
- intake valve
- bypass pipe
- suction
- oil
- suction bypass
- 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
Description
第１図は本考案に係る起動トルク軽減装置を備
えた容量調整装置を有する無給油式スクリユ圧縮
機を示す系統図、第２図は圧縮機の回転数と圧力
の関係を示す図、第３図は圧縮機の吸込口の真空
度とトルクの関係を示す図、第４図は従来の容量
調整装置を有する無給油式スクリユ圧縮機を示す
系統図である。
１……圧縮機、３……吸込口、６……吸気弁、
２３……吸気バイパス管、２５……自動弁。
Fig. 1 is a system diagram showing an oil-free screw compressor having a capacity adjusting device equipped with a starting torque reducing device according to the present invention, Fig. 2 is a diagram showing the relationship between the rotation speed and pressure of the compressor, and Fig. 3 is a diagram showing the relationship between the rotation speed and pressure of the compressor. The figure shows the relationship between the degree of vacuum at the suction port of the compressor and the torque, and FIG. 4 is a system diagram showing an oil-free screw compressor having a conventional capacity adjustment device. 1...Compressor, 3...Suction port, 6...Intake valve,
23...Intake bypass pipe, 25...Automatic valve.
Claims (1)
る吸込バイパス管を設けて吸込口の真空度を許容
値内に制限するとともに、吐出圧力を大気に開放
して無負荷運転を行なうようにした容量調整装置
を有する無給油式スクリユ圧縮機において、起動
時のみ前記吸込バイパス管の流路面積を縮小する
ように形成したことを特徴とする無給油式スクリ
ユ圧縮機における起動トルク軽減装置。 Capacity adjustment that closes the intake valve while providing a suction bypass pipe that bypasses the intake valve to limit the degree of vacuum at the suction port to within an allowable value, while also opening the discharge pressure to the atmosphere to perform no-load operation. 1. A starting torque reducing device for an oil-free screw compressor, characterized in that the flow path area of the suction bypass pipe is reduced only during startup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14038985U JPS6247792U (en) | 1985-09-12 | 1985-09-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14038985U JPS6247792U (en) | 1985-09-12 | 1985-09-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6247792U true JPS6247792U (en) | 1987-03-24 |
Family
ID=31047194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14038985U Pending JPS6247792U (en) | 1985-09-12 | 1985-09-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6247792U (en) |
-
1985
- 1985-09-12 JP JP14038985U patent/JPS6247792U/ja active Pending
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