Find Your Plug DENSO Global Part Number chart
DENSO Logo
DENSO SPARK PLUGS DENSO GLOBAL
HOME Topics Photo Gallery Movie collection Links
CONTENTS
Find Your Plugs
Reference
Part Number Chart
IRIDIUM POWER
Features
Structure
Linenup
Specifications
IRIDIUM TOUGH
Features
Structure
Linenup
Specifications
IRIDIUM PLUS
Features
Specifications
IRIDIUM POWER
Features
Structure
Linenup
Specifications
Basic_Knowledge
Plugs Configrations
 Plugs Specifications
Q & A
IRIDIUM POWER Q&A
IRIDIUM TOUGH Q&A
TECH Q&A
 Sales Companies
Cross Reference
It is a question concerning the IRIDIUM POWER that is often.
Tell me about the firing performance of the IRIDIUM POWER.
Use of 0.4 mm diameter iridium center electrode and a tapered cut and a U-groove in the ground electrode has enabled us to achieve previously unparalleled firing performance in the IRIDIUM POWER.
Ordinarily, the leaner the air mix the more difficult the firing.
The greater the ignitability limits, that is the leaner the air mix in which a plug can spark, the better firing performance a plug is said to have.

The following graph shows some examples of ignitability limits (*) for various spark plugs.

*: Ignitability limits (Air/Fuel);
  1)Lean limits to be able to fire
  2)As this figure is getting higher, it will become easier to fire.
Test engine: 1600 cc, 4-valve, 4-cylinder
(The above is analyzed in DENSO.)
Compared to normal spark plugs, with a spark gap of 0.8mm, the Ignitability limits is better by 2.5.


Contact Us |  Sitemap |  Privacy Policy |  Terms of Use | 

Copyright (C) DENSO CORPORATION. All rights reserved.