There are several axial engines of the barrel or revolver type with small and sometimes large differences. This is the case of the Wishon engine from 1923, which had a double inclined plate at the ends.

-It had nine cylinders and 18 pistons. Its most notable feature was that it had rotary valves in the center.

“Image taken from the patent”

-It was patented by Ralph Wishon in the aforementioned year of 1923. We highlight the merit of having rotary valves and a complex and well-synchronized valve gear system.

“Worthy of a good study, the valve gear train”