Magneto-system firing apparatus
US6534987B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 2001 |
| Grant date | Mar 18, 2003 |
| Priority date | — |
| Expiry date | Apr 4, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P1/083
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A magneto-system firing apparatus which is capable of rapidly detecting an abnormal state in the case where abnormality occurs in the make/break operation of a contact point due to damage of a breaker or the like. A magneto-system firing apparatus includes a magnet fixed to a rotary shaft that interlocks with a crank shaft of an engine; a primary coil to which a low-voltage current that is generated due to the rotation of the magnet is supplied; a breaker which is connected to the primary coil and interrupts the low-voltage current supplied to the primary coil by its break operation; a secondary coil in which a predetermined voltage is induced due to the current interruption caused by the break operation of the breaker to actuate the firing apparatus by application of the voltage generated in the secondary coil; a crank angle detecting portion for detecting the rotating angle of the crank shaft; a breaker make/break state detecting portion for detecting the make/break state of the breaker; and a breaker failure detecting device having a breaker make/break abnormality detecting portion which is capable of detecting the abnormal state of the breaker make/break operation on the basis …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.