GB617060A - Improvements in magnetic couplings, brakes or dynamometers - Google Patents
Improvements in magnetic couplings, brakes or dynamometersInfo
- Publication number
- GB617060A GB617060A GB2374144A GB2374144A GB617060A GB 617060 A GB617060 A GB 617060A GB 2374144 A GB2374144 A GB 2374144A GB 2374144 A GB2374144 A GB 2374144A GB 617060 A GB617060 A GB 617060A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetic
- air gap
- disc
- brakes
- polepieces
- 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
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
- H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
- H02K49/046—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with an axial airgap
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/02—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type
- H02K49/04—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type
- H02K49/043—Dynamo-electric clutches; Dynamo-electric brakes of the asynchronous induction type of the eddy-current hysteresis type with a radial airgap
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
617,060. Eddy-current brakes. ENGLISH ELECTRIC CO., Ltd., and AYRES, W. E. M. Nov. 28, 1944, No. 23741. [Class 103 (i)] [Also in Group XXXV] In a slip coupling, eddy current brake or dynamometer, one member is a disc or drum arranged in an air gap in the second member in such manner that the flux passes transversely through the disc or drum from one to the other of a pair of unbroken (untoothed) faces on the other member. In the form shown, an engine shaft 3 carries wound field members 1, 2 having an intermediate magnetic ring 30 extending between the two non-magnetic discs 10, 31 constituting the driven member. These have magnetic inserts 32, 33 facing the polepieces 1a, 1b, 2a, 2b on parts 1, 2. Alternatively, a single disc may be employed and this may be magnetic with slots facing the said polepieces. In another form, the driving member has a single coil and the air gap is arranged so that teeth on the driven member project axially into it. The faces of the driving member may be coated with a good conductor or may carry a squirrel cage. One side of the air gap may be bounded by a stationary magnetic member which may carry the winding, and may be formed of coil strip. In the case of brakes or dynamometers, the stationary member may be cooled by fluid passed through ducts therein. According to the Provisional Specification the exciting winding may be omitted and permanent magnets used. Specification 617,059, [Group XXXV], is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2374144A GB617060A (en) | 1944-11-28 | 1944-11-28 | Improvements in magnetic couplings, brakes or dynamometers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2374144A GB617060A (en) | 1944-11-28 | 1944-11-28 | Improvements in magnetic couplings, brakes or dynamometers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB617060A true GB617060A (en) | 1949-02-01 |
Family
ID=10200538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2374144A Expired GB617060A (en) | 1944-11-28 | 1944-11-28 | Improvements in magnetic couplings, brakes or dynamometers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB617060A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2693261A (en) * | 1951-01-27 | 1954-11-02 | Eaton Mfg Co | Magnetic disk clutch |
| DE948794C (en) * | 1952-11-06 | 1956-09-06 | Citroen Sa Andre | Electromagnetic brake |
| DE1084823B (en) * | 1957-12-10 | 1960-07-07 | Elie Cohen | Eddy current device, especially eddy current brake or clutch |
| DE1116552B (en) * | 1958-06-02 | 1961-11-02 | Philips Nv | Multi-pole magnetic eddy current brake for vehicles, especially motor vehicles |
| DE1164557B (en) * | 1955-05-07 | 1964-03-05 | Siemens Ag | Eddy current brake for control switches of motor drives, especially on electric traction vehicles |
| EP1203440B1 (en) * | 1999-08-04 | 2007-05-16 | Magna Force, Inc. | Permanent magnet coupler with adjustable air gaps |
-
1944
- 1944-11-28 GB GB2374144A patent/GB617060A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2693261A (en) * | 1951-01-27 | 1954-11-02 | Eaton Mfg Co | Magnetic disk clutch |
| DE948794C (en) * | 1952-11-06 | 1956-09-06 | Citroen Sa Andre | Electromagnetic brake |
| DE1164557B (en) * | 1955-05-07 | 1964-03-05 | Siemens Ag | Eddy current brake for control switches of motor drives, especially on electric traction vehicles |
| DE1084823B (en) * | 1957-12-10 | 1960-07-07 | Elie Cohen | Eddy current device, especially eddy current brake or clutch |
| DE1116552B (en) * | 1958-06-02 | 1961-11-02 | Philips Nv | Multi-pole magnetic eddy current brake for vehicles, especially motor vehicles |
| EP1203440B1 (en) * | 1999-08-04 | 2007-05-16 | Magna Force, Inc. | Permanent magnet coupler with adjustable air gaps |
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