Thompson coupling
From Wikipedia, the free encyclopedia
The Thompson coupling is a type of universal joint that, unlike traditional universal joints, has true constant velocity between the drive and driven shaft. It consists essentially of two universal joints assembled coaxially and therefore also incorporates an advantage of the universal joint, no load bearing sliding surfaces. The Thompson coupling is the first constant-velocity coupling to have this property.[1] The elimination of sliding surfaces is claimed to reduce energy losses, and improve longevity compared to constant-velocity joints.[1] According to its inventor, Glenn Thompson, the coupling uses about 8 per cent less energy than an equivalent system.[2]
The coupling has earned its inventor the Australian Society for Engineering in Agriculture Engineering Award.[3]
[edit] References
- ^ a b Bowman, Rebecca (2006-08-03). An invention to drive fuel costs down. yourguide.com.au. Archived from the original on 2007-02-13. Retrieved on 2007-02-13.
- ^ Reynolds, Bruce. "Improving drive shafts", ABC Rural, Australian Broadcasting Corporation, 2006-08-17. Retrieved on 2007-02-14.
- ^ Filmer, Mark (2003-11-13). Invention generating interest. yourguide.com.au. Archived from the original on 2007-02-13. Retrieved on 2007-02-13.
[edit] External links
- Thompson Couplings Limited - Explanation of the Thompson coupling
- The Thompson Coupling - invented by Glenn Thompson ABC Television - The New Inventors - broadcast Feb 2007
- U.S. Patent 7,144,326 - Constant velocity coupling
- Video on Youtube: http://www.youtube.com/watch?v=xgQgm3GwaFs
- Video on Youtube: http://www.youtube.com/watch?v=Dh5C4e4exhM
