JPS56101098A - Pump with inducer - Google Patents
Pump with inducerInfo
- Publication number
- JPS56101098A JPS56101098A JP262180A JP262180A JPS56101098A JP S56101098 A JPS56101098 A JP S56101098A JP 262180 A JP262180 A JP 262180A JP 262180 A JP262180 A JP 262180A JP S56101098 A JPS56101098 A JP S56101098A
- Authority
- JP
- Japan
- Prior art keywords
- inducer
- output signal
- impeller
- generator
- rotational frequency
- 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
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To reduce the generation of cavitation through regulatin of the rotational frequency of an inducer by controlling an impeller, two shafts of an inducer and the connecting force of a variable speed coupling by way of a control circuit.
CONSTITUTION: It is assumed that the rotational frequency of an impeller 2 does not change, while an output signal Hs of a pressure gauge 11 lowers with a drop in the suction pressure of a pump. In this case, as an output signal Hso of a funtion generator 13 into which an output signal N of a tachometer 12 is left unchanged, an output signal (Hso-Hs) of an adder 14 turns to positive value and outputted to an excitation voltage generator 10. The generator 10 outputs an increment excitation voltage proportional thereto to an excitation coil 8 of an electromagnetic coupling which is excited by the sum of an electromagnetic voltage V and a voltage ΔV. This strengthens the connecting force of the solenoid coupling 7 so much that the suction pressure of the impeller 2 rises and the rotational frequency of the inducer increases. Thus, the control of the revolution of the inducer 4 can reduce the cavitation thereby improving the efficiency of the pump.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP262180A JPS56101098A (en) | 1980-01-16 | 1980-01-16 | Pump with inducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP262180A JPS56101098A (en) | 1980-01-16 | 1980-01-16 | Pump with inducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56101098A true JPS56101098A (en) | 1981-08-13 |
Family
ID=11534472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP262180A Pending JPS56101098A (en) | 1980-01-16 | 1980-01-16 | Pump with inducer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56101098A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60187794A (en) * | 1984-02-14 | 1985-09-25 | ウエスチングハウス エレクトリック コ−ポレ−ション | Pressure feed apparatus of volatile fluid |
| JPS6234190U (en) * | 1985-08-19 | 1987-02-28 | ||
| KR100414102B1 (en) * | 2001-08-17 | 2004-01-07 | 엘지전자 주식회사 | Structure for engaging impeller in turbo compressor |
-
1980
- 1980-01-16 JP JP262180A patent/JPS56101098A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60187794A (en) * | 1984-02-14 | 1985-09-25 | ウエスチングハウス エレクトリック コ−ポレ−ション | Pressure feed apparatus of volatile fluid |
| JPS6234190U (en) * | 1985-08-19 | 1987-02-28 | ||
| KR100414102B1 (en) * | 2001-08-17 | 2004-01-07 | 엘지전자 주식회사 | Structure for engaging impeller in turbo compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5733355A (en) | Digital speed detector | |
| JPS56101098A (en) | Pump with inducer | |
| JPS55128695A (en) | Centrifugal pump | |
| JPS5629485A (en) | Controlling system for induction motor | |
| JPS5370266A (en) | Power transmission gear | |
| JPS5246203A (en) | Method of controlling feed-water pumps for power genration plant | |
| JPS5781191A (en) | Method and device of improving characteristic of blower or the like | |
| JPS5575581A (en) | Driving method for solenoid pump | |
| JPS55131294A (en) | Controller for synchronous motor | |
| JPS57121308A (en) | Power amplifier | |
| JPS57171021A (en) | Controlling device of water pump of engine | |
| JPS54109116A (en) | Controller of non-commutator motor | |
| JPS56121827A (en) | Improving method of governor characteristic for diesel engine | |
| JPS5543225A (en) | Driving controlling apparatus of electromagnetic pump | |
| JPS56123797A (en) | Driving system for step-motor | |
| JPS5563316A (en) | Liquid fuel combustion apparatus | |
| JPS54156114A (en) | Motor driving circuit | |
| JPS5728591A (en) | Controlling device for inverter | |
| JPS551450A (en) | Refrigerant compressor | |
| JPS5726235A (en) | Control method for number of engine revolutions | |
| JPS5770977A (en) | Constant pressure pump | |
| JPS55109789A (en) | Pump controlling device | |
| SU1445790A1 (en) | Method of automatic control of separation in ore-dressing apparatus | |
| JPS56150987A (en) | Controller for speed of wound-rotor induction motor | |
| JPS5677586A (en) | Controlling method for pump |