Have you read 5.11.1?
if they do not want to use any ignition tool?
Diesel is often referred to as compression ignition. The fuel is ignited by compression.
At this point the engines are usually ignited by compression. Currently, only high RPMs are needed, but you probably will not need spark plugs anytime soon.
yes, but road engines have variable air temperatures, fuel qualities and engine oils that must last a long time. it must also be a very durable and high-tolerance motor.
There is a difference between not needing spark plugs because you know how to make compression ignition work and having an engine without spark plugs which was your OP.
The OP asked whether an engine without spark plugs or coils would be legal.godlameroso wrote: ↑30 Mar 2018, 17:595.11.1 Ignition is only permitted by means of a single ignition coil and single spark plug per cylinder. No more than five sparks per cylinder per engine cycle are permitted. The use of plasma, laser or other high frequency ignition techniques is forbidden. Only approved ignition coils may be used and the list of parts approved by the FIA, and the approval procedure, may be found in the Appendix to the Technical Regulations.
5.11.2 Only conventional spark plugs that function by high tension electrical discharge across an exposed gap are permitted. Spark plugs are not subject to the materials restrictions described in Articles 5.16 and 5.17.
Rules say nothing about how many electrodes in each spark plug, nor do they say anything about flame ignition.
They're not, not using, spark plugs. It's pretty much impossible to have compression ignition beyond 7k rpm, or at the engine loads the ICE sees.henry wrote: ↑30 Mar 2018, 18:07The OP asked whether an engine without spark plugs or coils would be legal.godlameroso wrote: ↑30 Mar 2018, 17:595.11.1 Ignition is only permitted by means of a single ignition coil and single spark plug per cylinder. No more than five sparks per cylinder per engine cycle are permitted. The use of plasma, laser or other high frequency ignition techniques is forbidden. Only approved ignition coils may be used and the list of parts approved by the FIA, and the approval procedure, may be found in the Appendix to the Technical Regulations.
5.11.2 Only conventional spark plugs that function by high tension electrical discharge across an exposed gap are permitted. Spark plugs are not subject to the materials restrictions described in Articles 5.16 and 5.17.
Rules say nothing about how many electrodes in each spark plug, nor do they say anything about flame ignition.
Why would the number of electrodes make any difference if there are no spark plugs?