GB1013335A - Portable underwater pump - Google Patents
Portable underwater pumpInfo
- Publication number
- GB1013335A GB1013335A GB3282564A GB3282564A GB1013335A GB 1013335 A GB1013335 A GB 1013335A GB 3282564 A GB3282564 A GB 3282564A GB 3282564 A GB3282564 A GB 3282564A GB 1013335 A GB1013335 A GB 1013335A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- motor
- earth
- relay
- electrodes
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/132—Submersible electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1,013,335. Automatic liquid level control. M. INOUE. Aug. 12, 1964, No. 32825/64. Heading G3R. [Also in Division F1] A submersible contrifugal pump P driven by an electric motor M comprises an upper electrode U and a lower electrode L which are adapted to be electrically connected to an earth by conduction through water in which the pump is immersed. The electrodes are attached to the motor casing, and the casing may form the earth E, the electrodes being insulated from it. If, however, the casing is of a poor conductor, such as synthetic resin, the earth E is formed by additional electrodes adjacent the electrodes U and L. When the water level reaches the upper electrode U, it forms a conductive path between this electrode and the earth E, whereby a relay RG, is energized from the power supply lead 11 through a transformer T and a rectifier R. A contact S 1 on this relay then closes to energize a further relay RC 2 . Contact S 2 on the latter relay closes to energize the motor M and another contact S 2 <SP>1</SP> connects the electrode L in parallel with the electrode U. The motor M consequently continues running until the water level has fallen below the lower electrode L, whereupon the relays and the motor are de-energized, and operation is not resumed until the water level again reaches the upper electrode U.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3282564A GB1013335A (en) | 1964-08-12 | 1964-08-12 | Portable underwater pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3282564A GB1013335A (en) | 1964-08-12 | 1964-08-12 | Portable underwater pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1013335A true GB1013335A (en) | 1965-12-15 |
Family
ID=10344562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3282564A Expired GB1013335A (en) | 1964-08-12 | 1964-08-12 | Portable underwater pump |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1013335A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2185536A (en) * | 1986-01-17 | 1987-07-22 | Mitsubishi Electric Corp | Fuel pump |
-
1964
- 1964-08-12 GB GB3282564A patent/GB1013335A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2185536A (en) * | 1986-01-17 | 1987-07-22 | Mitsubishi Electric Corp | Fuel pump |
| GB2185536B (en) * | 1986-01-17 | 1989-10-25 | Mitsubishi Electric Corp | Fuel supplying pump |
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