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EVguru
01-28-2010, 09:36 AM
http://ralphwatson.scienceontheweb.net/109.png

http://ralphwatson.scienceontheweb.net/110.png

http://ralphwatson.scienceontheweb.net/113.png

http://ralphwatson.scienceontheweb.net/117b.png

http://ralphwatson.scienceontheweb.net/rotary.html

Richard-TX
01-28-2010, 10:15 AM
The rotary valve idea has been around for quite a while. The last I heard is that it is impractical at this time. With the advent of electronically adjustable valve timing, the rotary or linear valve is even less appealing to engine designers.

vpt
01-28-2010, 10:53 AM
They were having problems getting it to seal properly about 3 years ago. Not sure if they made progress or not.