Magnetic ignition system
US6766787B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2002 |
| Grant date | Jul 27, 2004 |
| Priority date | — |
| Expiry date | Jan 18, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P9/005
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A circuit to achieve a large ignition advance, limitation of speed of revolutions and to prevent backfiring and reverse direction running in a magnetic ignition system comprises a flywheel with two poles and a three-legged iron core. An ignition transformer (L3/L4), a triggering coil (L2) and a charging coil (L1) are arranged on the legs of the core. The triggering coil is arranged either on the first or second leg in the direction of rotation of the flywheel, and the charging coil on the final leg. A time-constant circuit (an RC net) and a control switch (T2) are arranged between the charging coil and a main switch (T1) that opens/blocks triggering pulses whereby limitation in the speed of revolutions is achieved by means of adjustment of the time-constant circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.