Apparatus for mixing a fluid with a flowing material is disclosed including a chamber having an inlet for connection to a circular inlet conduit and an outlet for connection to a circular outlet conduit, and a supply conduit for supplying the fluid to the chamber, the inlet having a cross-section which is substantially circular at one end and which continuously transforms to a substantially elongated cross-section at the other end, and the outlet has a cross-section which is substantially circular at one end and which continuously transforms to a substantially elongated cross-section at the other end, and the supply conduit is located between the inlet and the outlet.
1. Apparatus for admixing a fluid with a flowing material comprising a chamber including an inlet portion for connection to a substantially circular inlet conduit and an outlet portion for connection to a substantially circular outlet conduit, and supply means for supplying said fluid to said chamber, said inlet portion having a first end for connection to said substantially circular inlet conduit and a second end, and said outlet portion having a first end for connection to said substantially circular outlet conduit and a second end, said inlet portion having a cross-section which is substantially circular at said first end and which continuously transforms to a substantially elongated cross-section at said second end, said outlet portion having a cross-section which is substantially circular at said first end and which continuously transforms to a substantially elongated cross-section at said second end, and wherein said supply means is located between said inlet portion and said outlet portion.
2. The apparatus of claim 1 wherein said fluid comprises a gas or a liquid.
3. The apparatus of claim 1 wherein said inlet portion and said outlet portion have a substantially constant area from said first end to said second end thereof.
4. The apparatus of claim 1 including throttle means disposed in said chamber between said inlet portion and said outlet portion.
5. The apparatus of claim 4 wherein said throttle means creates a turbulent zone in said chamber, and wherein said supply means is disposed at the beginning of said turbulent zone.
6. The apparatus of claim 4 wherein said supply means is disposed at said throttle means.
7. The apparatus of claim 4 wherein said supply means is disposed prior to said throttle means in a direction towards said inlet conduit.
8. The apparatus of claim 4 wherein said supply means is disposed subsequent to said throttle means in a direction towards said outlet conduit.