초록 ▼

Embodiments of the present invention can be used in situations in which heat and mass-transfer modified product, such as individual-sized pizzas, are to be prepared in relatively short periods of time, for example in one to five minutes. Through structural design features and air manipulation, embod

Embodiments of the present invention can be used in situations in which heat and mass-transfer modified product, such as individual-sized pizzas, are to be prepared in relatively short periods of time, for example in one to five minutes. Through structural design features and air manipulation, embodiments of the invention provide distinct advantages over the prior art, including improving quality control by increasing uniformity of heating across the oven and within each particular product, decreasing required baking time by increasing the effectiveness of impinging air jets through air pulsation and fluctuation, and maintaining uniformity of air flow to contact the baked product substantially perpendicular to its surface. Tubes or pipes possessing impingement nozzles permit the use of compressed air instead of fans. Embodiments of the invention permit more compact oven design, better control of air jet parameters, and quieter oven operation, and other advantages.

대표청구항 ▼

[ What is claimed is:] [1.]1. A nozzle insert for an impingement oven, the nozzle insert comprising:an outer shell;connection structure, operably coupleable with the outer shell, constructed to position the nozzle insert to direct gasflow toward a processing chamber of an impingement oven; anda plur

[ What is claimed is:] [1.]1. A nozzle insert for an impingement oven, the nozzle insert comprising:an outer shell;connection structure, operably coupleable with the outer shell, constructed to position the nozzle insert to direct gasflow toward a processing chamber of an impingement oven; anda plurality of conduits disposed within the outer shell, the plurality of conduits being constructed to create a rifling effect on gasflow passing through the plurality of conduits, thereby creating a plurality of gas jets for impinging on a product in the processing chamber.