Impinging air ovens having high mass flow orifices

摘要

An air dispensing duct that can be used in an oven to heat or cook food products passing through the oven on a conveyor. The air dispensing ducts comprise a cover plate and at least one columnating plate, and a plurality of orifices disposed on the cover plate and the columnating plate. The orifices are larger than those of the prior art, which advantageously, and counterintuitively, provides for faster cooking of the food product.

主权项

1. An air dispensing duct, comprising: a cover plate;
a columnating plate, wherein said cover plate and said columnating plate each have a plurality of orifices therein; and a housing connected to said cover plate and said columnating plate, said housing having an interior space and opening at one end for receiving air, so that air enters the air dispensing duct through said opening, is dispersed throughout said interior space, and passes out through said columnating plate and said cover plate, wherein said cover plate and said columnating plate are spaced apart at a distance of 1.0 to 1.75 inches, wherein said orifices are substantially round in shape, and have a diameter ranging from 0.5 to 2.0 inches, wherein a ratio of said diameter of said orifices in said columnating plate to said diameter of said orifices in said cover plate is between 4:5 to 1:4, and wherein said diameter of said cover plate orifices and said columnating plate orifices is fixed.