View Single Post
Old 07-12-2011, 04:11 PM   #12 (permalink)
some_other_dave
Master EcoModder
 
Join Date: Jul 2008
Location: Silly-Con Valley
Posts: 1,479
Thanks: 201
Thanked 262 Times in 199 Posts
Google up Coates rotary valve for one example in an automotive application.

I have heard that durability and sealing have been the primary problems with that.

-soD
  Reply With Quote