Controlled spark ignited flame kernel flow in fuel-fed prechambers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 2, 2021
Grant Date -
Feb 16, 2017
app pub date -
Oct 24, 2016
filing date -
Nov 23, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A pre-chamber spark plug that includes a shell. Additionally, the pre-chamber spark plug includes an insulator disposed within the shell. In a particular embodiment, a center electrode has a first portion surrounded by the insulator, and a second portion that extends from the insulator into a pre-chamber. The pre-chamber defined by the shell. In a further embodiment, a ground electrode is attached to the insulator. In particular embodiments, the ground electrode is tubular in shape and includes an inner spark surface ring spaced in surrounding relation to the center electrode to create a spark gap, an outer ring attached to the shell, and a plurality of rounded spokes connecting the inner and outer rings. In a particular embodiment, the ground and center electrodes accommodate attachment of precious metal alloys to increase electrode surface life. In another embodiment the ground electrode and insulator is coaxial to the center electrode.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2016 Application Filing Year
- F02P Class
- 319 Applications Filed
- 241 Patents Issued To-Date
- 75.55 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F02P Class
- 0 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 2, 2028 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 2, 2032 |
