- #BENDIX SCINTILLA MAGNETO SERVICE MANUALS GENERATOR#
- #BENDIX SCINTILLA MAGNETO SERVICE MANUALS SERIES#
Henry Wilde, an electrical engineer from Manchester, England, developed a combination of magneto and electro-magnet generator, where the magneto was used only to supply the field to the larger alternator. This could not be supplied by their own generator's output, without some process of ' bootstrapping'. Wilde machine, where a small magneto (top) powers the field coils of a larger alternator below.īoth dynamos and alternators required a source of power to drive their field coils. This gave a more even output current, which was still more advantageous for arc lamps. These windings were placed on a segmented iron core, similar to a Gramme ring, so as to form a single continuous hoop. His innovation was to replace the rotor coils previously wound on individual bobbins, with a 'ring wound' armature. The French engineer Auguste de Méritens (1834–1898) developed magnetos further for this purpose.
#BENDIX SCINTILLA MAGNETO SERVICE MANUALS GENERATOR#
The Belgian electrical engineer Floris Nollet (1794–1853) became particularly known for this type of arc lighting generator and founded the British-French company Société de l'Alliance to manufacture them. Magnetos thus established a small niche for themselves as lighting generators. Compared to the bipolar dynamo, this did have the advantage of more poles giving a smoother output per rotation, which was an advantage when driving arc lamps. The rotors first used were wound as sixteen axial bobbins, one per pole. The machine illustrated here uses eight disks and nine rows of magnets: 72 magnets in all. This had the advantage that each rotor disk could at least share the flux of two expensive magnets. As this was still an inadequate power, extra rotor disks were stacked axially, along the axle. As the flux available was limited by the magnet metallurgy, the only option was to increase the field by using more magnets. To achieve an adequate output power, magneto generators used many more poles usually sixteen, from eight horseshoe magnets arranged in a ring. Most early dynamos were bipolar and so their output varied cyclically as the armature rotated past the two poles. The generator from Souter Lighthouse at Science Museum in London, built by Frederick Hale Holmes. Only in a few specialised cases have they been used for power generation. They have never been widely applied for the purposes of bulk electricity generation, for the same purposes or to the same extent as either dynamos or alternators. Magnetos were used for specialized isolated power systems such as arc lamp systems or lighthouses, for which their simplicity was an advantage. For redundancy, virtually all piston engine aircraft are fitted with two magneto systems, each supplying power to one of two spark plugs in each cylinder. Use of such ignition magnetos for ignition is now limited mainly to engines without a low-voltage electrical system, such as lawnmowers and chainsaws, and to aircraft engines, in which keeping the ignition independent of the rest of the electrical system ensures that the engine continues running in the event of alternator or battery failure. Magnetos were also adapted to produce pulses of high voltage in the ignition systems of some gasoline-powered internal combustion engines to provide power to the spark plugs. Hand-cranked magneto generators were used to provide ringing current in telephone systems. It is categorized as a form of alternator, although it is usually considered distinct from most other alternators, which use field coils rather than permanent magnets. Unlike a dynamo, a magneto does not contain a commutator to produce direct current.
#BENDIX SCINTILLA MAGNETO SERVICE MANUALS SERIES#
*The Repair Kit and Deluxe Repair Kit for the Bendix -200, -201, and -202 Series Magnetos contain two sets of Contact Assembly Kits.2kW Société de l'Alliance magneto generator for arc lamps, of around 1870Ī magneto is an electrical generator that uses permanent magnets to produce periodic pulses of alternating current. **The component part kits contain installation hardware. Some parts that may be need replacing during magneto overhaul are not included in these kits. The Repair Kit and Deluxe Repair Kit for the Bendix -200, -201, and -202 series magnetos contain two sets of contact assembly kits. These parts are highest quality direct replacement parts and are approved for installation and use on certificated aircraft. The Deluxe Repair Kits contain the parts needed for major repair such as a magneto overhaul. The Repair Kits contain the parts needed for minor repair such as a 500 hour inspection. These magneto repair kits are designed to simplify the Bendix magneto overhaul process by providing all of the commonly needed overhaul parts in one convenient kit.