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Post by Pistola on Aug 11, 2018 14:38:25 GMT -8
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Post by wilmywood8455 on Aug 11, 2018 15:05:53 GMT -8
Sounds interesting, but I wonder why they don't simply use electric solenoids around the valve stems to move them rather than electric motors mechanically actuating desmodromic valvetrain?
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Post by Pistola on Aug 11, 2018 17:24:00 GMT -8
One reason may be solenoids are essentially an on and off device with a fixed amount of travel while a motor would give them the variable control they want.
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Post by wilmywood8455 on Aug 12, 2018 1:09:13 GMT -8
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Post by Carlo_Carrera on Aug 12, 2018 5:11:07 GMT -8
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Post by mmi16 on Aug 17, 2018 13:19:24 GMT -8
One reason may be solenoids are essentially an on and off device with a fixed amount of travel while a motor would give them the variable control they want. I suspect solenoids could be designed to operate to various degrees based upon voltage fed to the solenoid. What all that would be required I have no idea.
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Post by Pistola on Aug 17, 2018 13:36:56 GMT -8
The main ingredient to making a solenoid work is current affecting a fixed number of turns in the winding. In addition to time required for it to react to the application of voltage and current there is the time required for the voltage and current to decay when it is released which could run things right into the next application in a high revving motor.
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Post by Pistola on Oct 25, 2018 15:05:33 GMT -8
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