Quote:
Originally Posted by ivorya
...when will they just remove camshafts all together and utilize the computer to control the valves?...
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You are right, this technology has been around for I while. Some folks were working on this in the 70s and from what I recall, their concept was based on some pre-existing concepts, so it goes back before the time in the 70s I became aware of it.
Fig 7 in the 1st post shows the rendering of this approach using an electro/hydro approach.
This is the one that I specifically wondered why this system can only hang the valves at full open for no more than 80*. I can only consider a duty cycle limitation on the solenoid envisioned as the electro component of the valve actuator
Also, this is one of the aspects of this system that leads me to believe the entire system an not be panted. There are things described in the paper that have been used for tears already. I have to believe only aspects of this proposed system were granted a patent.