GB172957A - Improvements in magneto-electric ignition apparatus - Google Patents
Improvements in magneto-electric ignition apparatusInfo
- Publication number
- GB172957A GB172957A GB33420/21A GB3342021A GB172957A GB 172957 A GB172957 A GB 172957A GB 33420/21 A GB33420/21 A GB 33420/21A GB 3342021 A GB3342021 A GB 3342021A GB 172957 A GB172957 A GB 172957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pole
- shoes
- magnets
- armature
- magnet
- 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
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/26—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets
- H02K21/28—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets with armatures rotating within the magnets
- H02K21/32—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets with armatures rotating within the magnets having horse-shoe magnets
- H02K21/325—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets with armatures rotating within the magnets having horse-shoe magnets with the axis of the rotating armature perpendicular to the plane of the magnet
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/26—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with rotating armatures and stationary magnets
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
172,957. Bosch Akt.-Ges., R. Dec. 13, 1920, [Convention date]. Magneto-electric machines.-The magnets and pole-shoes of an ignition magneto, in which the length of the armature is greater than the diameter, are formed as hollow cylinders or parts of cylinders, and the magnets lie completely enshrouded within the outer surface of a cylinder of which the pole-shoes form almost the whole or part. Fig. 1 shows magnets 3 and pole-shoes 1 forming a complete cylinder inserted in a casing 2. In Figs. 2 and 3 the magnets 3 and armature 8 are enclosed by the pole-ring 1. In this case the magnets are inserted in the space surrounding the bearing; any number mav be used and, if necessary, at both ends of the armature. In the construction shown in Fig. 5, the annular magnet 3 rotates with the armature 8 so that four flux line changes are produced per revolution. Fixed contacts co-operating with a brush on the rotating armature convey current to the sparking plugs. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following subject-matter. The permanent magnets are constructed of steel of such high coercive force that the total length placed around the pole-shoe bore is at most equal to half the periphery of this bore; the pole-shoes may be of annular or other form. The magnet 3, Fig. 1 (Cancelled) consisting of a cylindrical bar with a V-shaped groove cut therein, is mounted so that the arms bridge across opposite pole-shoes 1 : pressure is applied by the spring-cover 5. Fig. 2 (Cancelled) shows a modified form. In Fig. 4 (Cancelled) the magnet 3 forms the base of the magneto. In another construction the casing is in one piece; the magnet and pole-shoes are introduced from the end, and a flat spring inserted between the magnet and casing ensures proper contact with the pole-shoes. Several magnets of smaller dimensions may be used. This subjectmatter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE544328X | 1920-12-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB172957A true GB172957A (en) | 1923-06-13 |
Family
ID=6560376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33420/21A Expired GB172957A (en) | 1920-12-13 | 1921-12-13 | Improvements in magneto-electric ignition apparatus |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH99376A (en) |
FR (1) | FR544328A (en) |
GB (1) | GB172957A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE741488C (en) * | 1939-07-02 | 1943-11-11 | Metallwarenfabrik | Magnet system for electric small alternators with rotating windings |
DE1058137B (en) * | 1957-10-11 | 1959-05-27 | August Duwe Dipl Ing | Small electric motor with permanent magnetic field |
DE1099629B (en) * | 1958-05-02 | 1961-02-16 | Licentia Gmbh | AC miniature motor with gear, the stator poles of which are partly provided with cast short-circuit rings |
-
1921
- 1921-11-18 CH CH99376D patent/CH99376A/en unknown
- 1921-12-08 FR FR544328D patent/FR544328A/en not_active Expired
- 1921-12-13 GB GB33420/21A patent/GB172957A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH99376A (en) | 1923-05-16 |
FR544328A (en) | 1922-09-20 |
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