Rotary radial engine composed of small individual engines in which the gears of each of its crankshafts engage with a fixed central one, in such a way that it is as if they run around it.

"Filtz engine"

-Of course, the rotation of the main engine is slower, but the power is the sum of all the small engines.

-It is the same as the Breton principle, with 6 cylinders and giving 60 CV. It did not prosper because of vibrations and failures.

From Appendix 11: Factory owned by Mr. Filtz Sr. and sons, engineers with their office known as A & M, in Neuilly-sur-Seine.

“Filtz engine front and rear view”

-The engine was a fixed radial with 6 cylinders giving 60 CV at 1,200 rpm.

-Two better pictures of the engine that appears above.

“Filtz giving 60 CV”

-In fact they are the same photos, but separated and enlarged.

“Filtz rotary?” (PiP-Flu)