Draft of a piston-less internal combustion engine
Emin Gabrielyan
2010-05-12
I present here a part of a draft of a piston-less engine. I got this idea first time when was in the school. At that time it was too hard to implement the device, but now seems a prototype can be created with emachineshop.com.
The two 3-thooth cogwheels shown below are to be placed in a chamber with not more than 60 degree opening on one side (page top) for exit of gases and a supply a pressure on the other side (page bottom). This draft is not complete.
There is a sliding problem to be solved. A feasible method would be an extension containing fine granularity gear profile on each (cylindrical shaped) contact surface. A tooth profile offering constant velocity ratio (e.g. cycloid or involute) is to be used. The constant ratio is respected during each of the two cycles with two different ratios. The fine gear profile can be implemented outside the chamber if pressure escape issues may arise.
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References:
http://en.wikipedia.org/wiki/Involute_gear
http://en.wikipedia.org/wiki/Gear