Ignition apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 19, 2022
Grant Date -
Mar 18, 2021
app pub date -
Jun 29, 2020
filing date -
Sep 12, 2019
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
There is provided an ignition apparatus that makes it possible that after a spark discharge starts, a secondary current is reduced so that a plug is suppressed from being consumed. The ignition apparatus is provided with an ignition coil including a primary coil, a secondary coil, and a tertiary coil, a first switching circuit for performing on/off-switching of energization of the primary coil from a power source, a second switching circuit for performing on/off-switching of energization of the tertiary coil, and a controller that performs on/off-control of the first switching circuit so as to generate a secondary current in the secondary coil, thereby causing a spark discharge in an ignition plug, and then turns on the second switching circuit so as to reduce the secondary current through a change in flux in the tertiary coil.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2020 Application Filing Year
- F02P Class
- 139 Applications Filed
- 108 Patents Issued To-Date
- 77.70 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F02P Class
- 0 % this patent is cited more than
- 3 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Jan 19, 2026 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jan 19, 2030 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 19, 2034 |
