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The gear oscillator...

...is an innovative concept that uses a set of non-circular gear wheels instead of a crankshaft and connecting rods to achieve the oscillating motion of a set of pistons.

This results in torque-only crankless reciprocating compressors and engines and enables the use of oil-free cylinders.

To learn more about the gear oscillator, you can click on the following topics:

The flywheel effect

Increasing efficiency

 

This is a cutaway view of a proof-of-concept design with a gear oscillator as its drive mechanism.

It features a compressor with thin-metal-flap type valves.

Click on the buttons below the image to see different animations of the device.

This is but a design that can take advantatge of the gear oscillator mechanism. You can also check an alternative compessor design that delivers multi-stage compression in a simple way as well as other configurations on this website.

 

Quote: "It is apparent that the use of small cylinders is a very powerful method of reducing size and weight for a given output" (Charles F. Taylor, MIT)

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