JPS555434A - Pressure controller of compressor - Google Patents
Pressure controller of compressorInfo
- Publication number
- JPS555434A JPS555434A JP7652778A JP7652778A JPS555434A JP S555434 A JPS555434 A JP S555434A JP 7652778 A JP7652778 A JP 7652778A JP 7652778 A JP7652778 A JP 7652778A JP S555434 A JPS555434 A JP S555434A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- compressor
- negative deviation
- set instrument
- signals
- 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
Abstract
PURPOSE: To easily control a compressor, by decreasing the variation of pressure by adjusting the quantity of winds discharged from the compressor by signals obtained by comparison operating the command value of discharge pressure and discharge pressure in place of a pressure switch.
CONSTITUTION: When the pressure of a discharge air pipe 11 becomes lower than that of a pressure set instrument 1 during the operation of a compressor 10, signals from a pressure transducer 2 drop, and a PID controller 3 amplifies its negative deviation. When the value of the negative deviation becomes larger than that of a negative deviation set instrument 5, a negative deviation comparator 7 functions, the signals are input to an addition and subtraction computing element 8 and the number of capacity adjusting valves 9-1W4 that operate increases. Thus, the quantity of winds discharged from the compressor 10 augments, and the pressure of the discharge air pipe 11 rises up to set pressure. Consequently, the pressure of the compressor is modified so as to reach pressure shown in the pressure set instrument 1 centering around the value of the set instrument 1, and pressure discharged from the compressor can accurately be controlled.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7652778A JPS555434A (en) | 1978-06-26 | 1978-06-26 | Pressure controller of compressor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7652778A JPS555434A (en) | 1978-06-26 | 1978-06-26 | Pressure controller of compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS555434A true JPS555434A (en) | 1980-01-16 |
Family
ID=13607747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7652778A Pending JPS555434A (en) | 1978-06-26 | 1978-06-26 | Pressure controller of compressor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS555434A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59180613A (en) * | 1983-03-31 | 1984-10-13 | Toshiba Corp | Method for controlling pressure of compressed-air equipment |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52121806A (en) * | 1976-04-05 | 1977-10-13 | Toyota Motor Corp | Unloader control device for compressor |
-
1978
- 1978-06-26 JP JP7652778A patent/JPS555434A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52121806A (en) * | 1976-04-05 | 1977-10-13 | Toyota Motor Corp | Unloader control device for compressor |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59180613A (en) * | 1983-03-31 | 1984-10-13 | Toshiba Corp | Method for controlling pressure of compressed-air equipment |
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