Ignition apparatus of internal combustion engine
US6279558A · kind A · utility
2Cited by
7References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 2000 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Jan 21, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P3/0453
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
In an ignition apparatus, voltage is induced in a primary coil by a permanent magnet being rotated together with rotation of an output shaft of an engine. As the output shaft rotates, protrusions also revolve, inducing voltage in an electromagnetic pickup. Depending on the induced voltage in the pickup, a switching element is switched on or off. The switching-off timing of the switching element is set as an ignition timing. Therefore, at the ignition timing, the current through the primary coil is sharply cut off, so that great voltage is induced in a secondary coil and is applied to an ignition plug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.