Brainchild & design & Web Publishing Date : January 27, 2011 [ Japanese language ]
(This page is what the text was written in Japanese by January 27, 2011 was translated into English in the May 13, 2016.)
Configure inside and outside, and making full use of the two pairs of cascade, to the inside and the outside of the front wheel,
each direction of rotation supplies the reverse vortex flow.
Since the vortex force involving the airflow in the vicinity of a large,
this should make the air flow path can be to some extent control.