JPS5629089A - Screw compressor - Google Patents
Screw compressorInfo
- Publication number
- JPS5629089A JPS5629089A JP10399179A JP10399179A JPS5629089A JP S5629089 A JPS5629089 A JP S5629089A JP 10399179 A JP10399179 A JP 10399179A JP 10399179 A JP10399179 A JP 10399179A JP S5629089 A JPS5629089 A JP S5629089A
- Authority
- JP
- Japan
- Prior art keywords
- bearings
- thrust
- electromagnetic valve
- bearing
- hydraulic 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
Landscapes
- Rotary-Type Compressors (AREA)
Abstract
PURPOSE: To equalize load to be subject to two bearings by providing a plurality of thrust bearings to support a rotor of a screw compressor in the same direction and by placing an electromagnetic valve in a hydraulic pressure passage.
CONSTITUTION: A bearing surface 23a of a thrust bearing 23 is installed to be in the same direction to a bearing surface 9a of the other thrust bearing 9, and a hydraulic pressure passage 24 is connected through an electromagnetic valve 25 to the hydraulic pressure source. Hereby, since two pieces of thrust ball bearings 9, 23 can be used as bearings to support thrust load, without overwork by one piece of thrust ball bearing only, life of the bearings can be greatly improved. And, when high pressure after lapse of several seconds at drive stop of a screw compressor is not being generated, an electromagnetic valve 27 is closed just as before starting, balance in the differential pressure is kept by opening the electromagnetic valve 25, which enables to further properly hold with less change in the clearance 22 between a casing 1 and the end of a rotor 2 on the drive side than in that which is referred to the conventional machinery.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10399179A JPS5629089A (en) | 1979-08-17 | 1979-08-17 | Screw compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10399179A JPS5629089A (en) | 1979-08-17 | 1979-08-17 | Screw compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5629089A true JPS5629089A (en) | 1981-03-23 |
Family
ID=14368760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10399179A Pending JPS5629089A (en) | 1979-08-17 | 1979-08-17 | Screw compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5629089A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5851290A (en) * | 1981-09-22 | 1983-03-25 | Hitachi Ltd | Thrust force balancing apparatus for screw compressor |
JPH10122168A (en) * | 1996-10-25 | 1998-05-12 | Kobe Steel Ltd | Oil-cooled screw compressor |
-
1979
- 1979-08-17 JP JP10399179A patent/JPS5629089A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5851290A (en) * | 1981-09-22 | 1983-03-25 | Hitachi Ltd | Thrust force balancing apparatus for screw compressor |
JPH10122168A (en) * | 1996-10-25 | 1998-05-12 | Kobe Steel Ltd | Oil-cooled screw compressor |
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