Magnetization treatment apparatus of fluid

Apparatus for magnetization treatment of a fluid comprising a fluid passage means, a magnetic field generator means rotatably disposed in said fluid passage means, and air introduction means in said passage means operable to draw in ambient air into said passage means to thereby introduce air into the fluid as the latter passes through said passage means and the fluid is subjected to the magnetic field generated by said magnetic field generator means, said air introduction means comprising a first and a second contiguous fluid passage section such that the fluid passes from said first fluid passage section to said second fluid passage section, said first fluid passage section having a cross-sectional area less than the cross-sectional area of said second fluid passage section such that the fluid moves faster through said first fluid passage section than said second fluid passage section, said air introduction means further comprising an air conduit in said second passage section opening up into said second fluid passage section such that air is drawn into said second fluid passage section through said air conduit, said fluid passage means comprising an inlet conduit connected to a housing, said generator means being disposed in said housing, said air introduction means being disposed in said inlet conduit.