Ignition coil for internal combustion engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 2, 2022
Grant Date -
Oct 28, 2021
app pub date -
Apr 27, 2021
filing date -
Apr 28, 2020
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An ignition coil for an internal combustion engine includes a plug boot with a hole having a length extending in an axial direction of the ignition coil. The length of the hole has a portion which includes a plurality of small distance-to-center sections and a plurality of large distance-to-center sections which are arranged alternately in a circumferential direction of the hole. Each of the small distance-to-center sections is located at a first distance away from the center of the hole, while each of the large distance-to-center sections is located at a second distance away from the center of the hole. The second distance is larger than the first distance. The small distance-to-center sections are placed to be contactable with an outer periphery of the coil spring. This structure of the ignition coil has enhanced resistance to mechanical vibration of the coil spring and also has enhanced withstand voltage.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2021 Application Filing Year
- F02P Class
- 118 Applications Filed
- 79 Patents Issued To-Date
- 66.95 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F02P Class
- 0 % this patent is cited more than
- 3 Age
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