JPS57206791A - Oil feed unit for screw compressor - Google Patents
Oil feed unit for screw compressorInfo
- Publication number
- JPS57206791A JPS57206791A JP9097281A JP9097281A JPS57206791A JP S57206791 A JPS57206791 A JP S57206791A JP 9097281 A JP9097281 A JP 9097281A JP 9097281 A JP9097281 A JP 9097281A JP S57206791 A JPS57206791 A JP S57206791A
- Authority
- JP
- Japan
- Prior art keywords
- bearings
- oil feed
- flow resistance
- smaller
- suction side
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/02—Lubrication; Lubricant separation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
PURPOSE:To properly control the quantity oil feed to bearings, prevent the bearings from a seizure, and improve the volume efficiency by providing a resistance means so that the flow resistance of a branch oil feed passage connecting to bearings of the discharge side is made smaller than that of a branch oil feed passage connecting to a bearings of the suction side. CONSTITUTION:The lubricating oil stored at the inner bottom of an auxiliary casing 11 flows into branch oil feed passages 18, 19 connecting to bearings 8, 10 of the discharge side and to bearings 9, 9 of the suction side under the pressure of screw rotors 2A, 2B, and it is decompressed by fine holes 32, 33 of flow resistance bodies 34, 35 respectively. In this case, the diameter of the fine hole 32 is made larger than that of the fine hole 33 and its flow resistance is smaller, then the degree of decomporession by the flow resistance body 34 is smaller than that by the flow resistance body 35. Thereby, the pressure in a ring groove 20 at the discharge side of the rotor becomes higher than that in a ring groove 21 at the suction side. Therefore, the oil feed can be smoothly supplied to the bearings 8, 10, the quantity of the lubricating oil can be properly supplied under control, a seizure of the bearings can be prevented, and the volume efficiency of the compressor can be improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9097281A JPS57206791A (en) | 1981-06-15 | 1981-06-15 | Oil feed unit for screw compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9097281A JPS57206791A (en) | 1981-06-15 | 1981-06-15 | Oil feed unit for screw compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57206791A true JPS57206791A (en) | 1982-12-18 |
Family
ID=14013414
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9097281A Pending JPS57206791A (en) | 1981-06-15 | 1981-06-15 | Oil feed unit for screw compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57206791A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5411385A (en) * | 1992-11-20 | 1995-05-02 | Calsonic Corporation | Rotary compressor having oil passage to the bearings |
EP1766243A2 (en) * | 2004-02-25 | 2007-03-28 | Carrier Corporation | Lubrication system for compressor |
US20160312779A1 (en) * | 2013-12-12 | 2016-10-27 | Gea Refrigeration Germany Gmbh | Compressor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5017686A (en) * | 1973-06-14 | 1975-02-25 | ||
JPS5528714B2 (en) * | 1977-06-11 | 1980-07-30 |
-
1981
- 1981-06-15 JP JP9097281A patent/JPS57206791A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5017686A (en) * | 1973-06-14 | 1975-02-25 | ||
JPS5528714B2 (en) * | 1977-06-11 | 1980-07-30 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5411385A (en) * | 1992-11-20 | 1995-05-02 | Calsonic Corporation | Rotary compressor having oil passage to the bearings |
EP1766243A2 (en) * | 2004-02-25 | 2007-03-28 | Carrier Corporation | Lubrication system for compressor |
EP1766243A4 (en) * | 2004-02-25 | 2010-01-20 | Carrier Corp | Lubrication system for compressor |
AU2005216020B2 (en) * | 2004-02-25 | 2010-08-26 | Carrier Corporation | Lubrication system for compressor |
US20160312779A1 (en) * | 2013-12-12 | 2016-10-27 | Gea Refrigeration Germany Gmbh | Compressor |
US10619636B2 (en) * | 2013-12-12 | 2020-04-14 | Gea Refrigeration Germany Gmbh | Compressor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH03149389A (en) | Scroll compressor | |
JPS5634998A (en) | Refrigerant compressor | |
ES8603625A1 (en) | Wet motor fuel pump with fuel flow through the bearing for cooling thereof | |
JPS54139107A (en) | Hermetic scroll compressor | |
JPS57206791A (en) | Oil feed unit for screw compressor | |
US4712986A (en) | Oil feeding apparatus for a rotary compressor | |
US2523588A (en) | Screw type oil pump | |
JPS54154811A (en) | Screw compressor | |
DE3166463D1 (en) | Lubrication system | |
JPS5537552A (en) | Hollow cam shaft having oil pump configuration | |
JPS57102595A (en) | Oil supplier screw compressor | |
SU1236173A1 (en) | Lubrication system for screw compressor | |
JPS5776292A (en) | Scroll fluid machine | |
JPS57173502A (en) | Sealing device of scroll fluidic machine | |
GB846390A (en) | Improvements in or relating to rotary compressors | |
JPS6456909A (en) | Lubricating device for engine | |
JPS56143389A (en) | Rotary fluid machine | |
JPS56106092A (en) | Capacity controlling mechanism for screw compressor | |
JPS5720584A (en) | Refrigerant compressor | |
JPS57146087A (en) | Screw compressor | |
JPS57193782A (en) | Refrigerant compressor | |
JPS6432088A (en) | Scroll gas compressor | |
JPS5786590A (en) | Rotary compressor | |
JPS6027835Y2 (en) | hermetic compressor | |
JPS57193783A (en) | Refrigerant compressor |