Optimized high power high energy ignition system
US5456241A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 8, 1993 |
| Grant date | Oct 10, 1995 |
| Priority date | — |
| Expiry date | Nov 8, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47K2010/324
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A high power high energy ignition system for internal combustion engines using an energy storage capacitor (4), resonating inductor (3) and one or more coils Ti with switches Si for each coil Ti. The system is designed and optimized according to the transient voltage doubling formulation and certain coil magnetic flux formulations to produce a very high power, very high energy, high efficiency ignition powered and controlled by a power converter (14) and controller (15) to produce an initial high frequency spark pulse followed by moderate firing longer duration spark pulses or continuously firing spark oscillations for delivery to the air-fuel mixture of an engine with total spark energy approximately independent of engine speed. The energy is delivered by means of a toroidal gapped spark plug (46) with extended electrodes (48a) to maximize ignition kernel size and minimize spark plug erosion and fouling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.