JPS57129282A - Two-stage compressor - Google Patents
Two-stage compressorInfo
- Publication number
- JPS57129282A JPS57129282A JP1434681A JP1434681A JPS57129282A JP S57129282 A JPS57129282 A JP S57129282A JP 1434681 A JP1434681 A JP 1434681A JP 1434681 A JP1434681 A JP 1434681A JP S57129282 A JPS57129282 A JP S57129282A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- chamber
- gas
- discharged
- pressure
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary-Type Compressors (AREA)
Abstract
PURPOSE:To enable to arrange a pair of high-stage and low-stage screw rotors in a continuous common casing, by supporting respective intermediate shaft portions of the two screw rotors by a partition wall. CONSTITUTION:Intermediate shaft portions 21b, 24b respectively of rotor shafts 21, 24 are supported by respective shaft sealing means 27a, 27b fitted in a partition wall 26. When a rotor 20 is set into rotation by a rotor shaft 21, a rotor 23 is also rotated by means of gears 36, 37, and gas is drawn into a low-pressure stage work chamber 28 from a suction port 30 of the chamber 28. Then, the gas is compressed to an intermediate pressure through engagement of the rotor 22l and rotor 25l, and thereafter discharged to the outside from an outlet port 31. The gas thus discharged from the chamber 28 is then introduced into a high- pressure stage work chamber 39 from an inlet port 41 of the chamber 39 and discharged to the outside from an outlet port 42 after it is compressed to a predetermined discharge pressure through engagement of the rotors 22h and 25h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1434681A JPS57129282A (en) | 1981-02-04 | 1981-02-04 | Two-stage compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1434681A JPS57129282A (en) | 1981-02-04 | 1981-02-04 | Two-stage compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57129282A true JPS57129282A (en) | 1982-08-11 |
Family
ID=11858502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1434681A Pending JPS57129282A (en) | 1981-02-04 | 1981-02-04 | Two-stage compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57129282A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101253117B1 (en) | 2011-12-16 | 2013-04-10 | 주식회사 동방플랜텍 | Multi-stage screw vacuum-pump |
-
1981
- 1981-02-04 JP JP1434681A patent/JPS57129282A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101253117B1 (en) | 2011-12-16 | 2013-04-10 | 주식회사 동방플랜텍 | Multi-stage screw vacuum-pump |
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