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  • Planetary gears for hybrid cars

    Discussion in 'The main mechanical design forum' started by borges, Jun 17, 2011.

    1. borges

      borges New Member

      Jun 2010
      Likes Received:

      I've always been fascinated by gearboxes. A while ago I came up with an idea for a planetary gear box that uses only breaks (to chassis) and no clutches (between moving parts). With A+B gear sets it gives A*B different transmission ratios.

      I believe the gear box may do a good job for combustion/electric hybrid cars. It also has ways to attach energy sources like a Sterling motor or an energy source/sink like a flywheel. Given the layout of the gearbox, the flywheel will need less range in its continuously variable transmission.

      The whole thing is described at http://www.qnktc.com/gear/g.pdf

      I'm putting it into the public domain for anyone to see and use. I have contacted car makers who either don't respond or who demand that I have speant half a year's salaries on patents before they can do anything.

      I hope you like the consept!

    3. Dana

      Dana Well-Known Member

      Sep 2010
      Likes Received:
      A brake on the ring gear of a planetary gearset for clutch action (letting the ring gear freewheel) is not a new idea... had a R/C model car that worked that way back in the seventies, engine driving the sun gear, power taken off the planet gear spider.

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