I have invented (on paper) a limited slip differential that is completely geared and does not use any clutches, hydraulics, sensors, or electronics. It is simply a very unique arrangement of gears that has 1 input and 2 outputs. The outputs can spin at different speeds. As one output slows down, the other speeds up by an equal amount. The difference in the output speeds is limited to 50% difference (or a different percent--based on the gear ratios)--hence it is a limited slip. Currently the design is just in my head, on paper, and i did a 3-d simulation to confirm that it would work. Is this significant? I have searched the US patent site and I can't find anything else that accomplishes this. The Torsen system is kind of similar but that works on the principle of sending more torque to the side with the most resistance, and really isn't a limited slip (if one wheel is off the ground it spins freely, and the other wheel doesn't move). All of the other designs I found use friction plates or electronics. Patents cost a few thousand dollars--would this be worth patenting with the hopes that i could sell the patent? I am an engineer, but in an non-automotive field. Thanks for any advice.
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