GB191409726A - Improvements in or relating to the Control of Electric Fan Motors. - Google Patents
Improvements in or relating to the Control of Electric Fan Motors.Info
- Publication number
- GB191409726A GB191409726A GB191409726DA GB191409726A GB 191409726 A GB191409726 A GB 191409726A GB 191409726D A GB191409726D A GB 191409726DA GB 191409726 A GB191409726 A GB 191409726A
- Authority
- GB
- United Kingdom
- Prior art keywords
- disk
- contacts
- circuit
- spring
- control
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
9726. Jones, S. G., Wilson, F. E., and Shepherd, W. A. April 20. Centrifugal switches.-The circuit of a fan motor is automatically interrupted at intervals by a centrifugal device B having one sleeve fixed by a screw c to the motor shaft. A loose sleeve D<2> pulls a conducting-disk E away from insulated spring contacts H, J when the speed rises. As the speed falls, an insulating ring G on the disk first touches the contacts and prevents the closure of the circuit until a sufficient retardation has resulted, after which the disk E re-establishes the motor circuit. The contact H is in two parts pivoted together at Z, the outer one being under the control of a spring X so as to permit of its being forced back by the disk, and the inner one mounted on an insulated flat spring I. Thermal switches.-A thermal switch may replace the centrifugal device, an expansible bar D, Fig. 1, cutting out its heating resistance E at intervals by closing contacts B', B<2>.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB191409726T | 1914-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB191409726A true GB191409726A (en) | 1915-04-15 |
Family
ID=34360709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB191409726D Expired GB191409726A (en) | 1914-04-20 | 1914-04-20 | Improvements in or relating to the Control of Electric Fan Motors. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB191409726A (en) |
-
1914
- 1914-04-20 GB GB191409726D patent/GB191409726A/en not_active Expired
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