Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Rotary vane engines

  1. Jan 13, 2012 #1
    are the 'vanes' of a rotary vane engine a major disadvantage? granted that the vanes would be under considerable stress, but is it so much larger than the stress on connecting rod in reciprocating engines? and is sliding friction on sides very high compared to pistons? also, is sealing a major issue?
    if u r looking fr references, www.rotatorque.com
  2. jcsd
  3. Jan 13, 2012 #2
    What is "considerable stress?" An engineer determines his loads, and then designs for them.

    I've seen this same concept used in air compressors. Works very well with little maintenance. Friction is low, but increases with rpm.

    The only potential problem that pops out at me is the same as what Mazda had when they first introduced their rotary engine. Though engine design is much different, the tip seals are similar. They developed a resonance problem and would bounce off the wall, but that is fixed easily enough in the design.
  4. Jan 13, 2012 #3
    by 'considerable stress'i meant that the load can't be handled by existing materials technology
  5. Jan 16, 2012 #4
    I'm not so sure that we don't have the ability to build such an engine. Certainly, it would require a full scale engineering development program; but if we can build a gas turbine with turbine inlet temperatures at 3600 degrees F, we can build this little motor. I have serious doubts that it would be ecconomically viable, though.
  6. Jan 16, 2012 #5
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook