JPS5718484A - Revolution speed control unit of screw type compressor - Google Patents
Revolution speed control unit of screw type compressorInfo
- Publication number
- JPS5718484A JPS5718484A JP9260480A JP9260480A JPS5718484A JP S5718484 A JPS5718484 A JP S5718484A JP 9260480 A JP9260480 A JP 9260480A JP 9260480 A JP9260480 A JP 9260480A JP S5718484 A JPS5718484 A JP S5718484A
- Authority
- JP
- Japan
- Prior art keywords
- revolution speed
- decrease
- power consumption
- control unit
- alternating current
- 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
- Applications Or Details Of Rotary Compressors (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To simplify mechanical movable portion and reduce power consumption, by controlling simultaneously the revolution speed of an electric motor and liquid impregnation pump by means of output of detector thermal provided to detect increase and decrease of the heat load through variable voltage frequency converter.
CONSTITUTION: An intake pressure detector 4 to detect the increase and decrease of cooling heat load is provided on the intake portion of a compressor 1, and the output of the intake pressure detector 4 is inputted in a variable voltage frequency converter 7 by way of a pressure regulator 5, and further the revolution speed of a compressor driving alternating current motor 3 and liquid impregnation pump driving alternating current motor 10 are controlled simultaneously. Thereby, mechanical movable portion is simplified and power consumption can be reduced, since sliding and throttle valves become unnecessary, which are arranged for controlling speed increasing gear train and compressed volume.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9260480A JPS5718484A (en) | 1980-07-09 | 1980-07-09 | Revolution speed control unit of screw type compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9260480A JPS5718484A (en) | 1980-07-09 | 1980-07-09 | Revolution speed control unit of screw type compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5718484A true JPS5718484A (en) | 1982-01-30 |
Family
ID=14059048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9260480A Pending JPS5718484A (en) | 1980-07-09 | 1980-07-09 | Revolution speed control unit of screw type compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5718484A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6346699U (en) * | 1986-09-12 | 1988-03-29 | ||
JPH07162309A (en) * | 1993-12-03 | 1995-06-23 | Nec Corp | Data synchronizing circuit |
US5811051A (en) * | 1993-12-03 | 1998-09-22 | Komatsu Ltd. | Method and apparatus for continuously draw-molding fiber reinforced plastic rod formed with spiral groove |
EP1172563A2 (en) | 2000-06-23 | 2002-01-16 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.) | Screw compressor for refrigerating apparatus |
WO2005085646A1 (en) * | 2004-02-27 | 2005-09-15 | York International Corporation | System and method for variable speed operation of a screw compressor |
JP2006200465A (en) * | 2005-01-21 | 2006-08-03 | Kobe Steel Ltd | Refrigeration device |
WO2011067738A1 (en) | 2009-12-03 | 2011-06-09 | Elas Geotecnica S.R.L. | Method and plant for producing a fiberglass profile to be used as reinforcing element for strengthening an excavation wall |
-
1980
- 1980-07-09 JP JP9260480A patent/JPS5718484A/en active Pending
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6346699U (en) * | 1986-09-12 | 1988-03-29 | ||
JPH07162309A (en) * | 1993-12-03 | 1995-06-23 | Nec Corp | Data synchronizing circuit |
US5811051A (en) * | 1993-12-03 | 1998-09-22 | Komatsu Ltd. | Method and apparatus for continuously draw-molding fiber reinforced plastic rod formed with spiral groove |
EP1172563A2 (en) | 2000-06-23 | 2002-01-16 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd.) | Screw compressor for refrigerating apparatus |
US6484522B2 (en) | 2000-06-23 | 2002-11-26 | Kobe Steel, Ltd. | Screw compressor for refrigerating apparatus |
WO2005085646A1 (en) * | 2004-02-27 | 2005-09-15 | York International Corporation | System and method for variable speed operation of a screw compressor |
US7096681B2 (en) | 2004-02-27 | 2006-08-29 | York International Corporation | System and method for variable speed operation of a screw compressor |
JP2007525616A (en) * | 2004-02-27 | 2007-09-06 | ヨーク・インターナショナル・コーポレーション | System and method for operating a screw compressor at a variable speed |
JP2006200465A (en) * | 2005-01-21 | 2006-08-03 | Kobe Steel Ltd | Refrigeration device |
WO2011067738A1 (en) | 2009-12-03 | 2011-06-09 | Elas Geotecnica S.R.L. | Method and plant for producing a fiberglass profile to be used as reinforcing element for strengthening an excavation wall |
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