Measuring device in a radiofrequency ignition system for internal combustion engine
US8387446B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2008 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Sep 13, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02P2017/125
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A measuring device including: a supply circuit for radiofrequency ignition including a transformer including a secondary winding connected to at least one resonator having a resonance frequency higher than 1 MHz, and including two electrodes capable of generating a spark upon an ignition control; a measuring capacitor connected in series between the secondary winding and the resonator; a measuring circuit of ionization current of the combustion gases in a cylinder of the internal combustion engine associated with the resonator, the circuit being connected at terminals of the measuring capacitor; and/or a measuring circuit that measures a voltage at the resonator terminals upon an ignition control, the circuit being connected to terminals of the measuring capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.