초록 ▼

An impingement oven comprising a cooking chamber, a conveyor, and a plurality of plenums. A plurality of finger duct members attached to each plenum are located above and below the conveyor. Adjacent sidewalls of adjacent duct members are tapered relative to one another to define an outwardly tapere

An impingement oven comprising a cooking chamber, a conveyor, and a plurality of plenums. A plurality of finger duct members attached to each plenum are located above and below the conveyor. Adjacent sidewalls of adjacent duct members are tapered relative to one another to define an outwardly tapered air return space in a direction away from the plenum. A plurality of air deflectors are secured to an inner surface of each duct member for deflecting air through a plurality of nozzles located on the duct member. A partition between the plenums segregates return air flowing from the cooking chamber to adjacent plenums. For at least two ovens stacked one above the other, the invention further includes a cooling system having a cooling compartment and a central cooling duct for drawing cool air from near floor level and moving the cool air upwardly to cool and control circuitry for each of the stacked ovens. The cool air is then exhaused out of the cooling compartment to substantially insulate the oven control circuitry from the radiating heat of the oven below.

대표청구항 ▼

An impingement food preparation apparatus comprising: an enclosure including a cooking chamber for cooking a food product therein; supporting means in said cooking chamber for supporting the food product; a plurality of finger duct members mounted in said cooking chamber and spaced from said support

An impingement food preparation apparatus comprising: an enclosure including a cooking chamber for cooking a food product therein; supporting means in said cooking chamber for supporting the food product; a plurality of finger duct members mounted in said cooking chamber and spaced from said supporting means, each of said duct members including a plurality of nozzles therein and pair of sidewalls, said nozzles being shaped and positioned to direct a plurality of discrete streams of impinging air toward said supporting means; means forming a plenum in said enclosure connected to said duct members in fluid communication therewith to provide a flow of air thereto, said plenum means having a front wall with a plurality of openings connected to respective said duct members and an air intake opening therein; means for heating the flow of air before it enters the plenum; means for drawing air from said chamber into said plenum; and adjacent said sidewalls of adjacent said ducts being tapered relative to each other to define an air return space outwardly tapered in a direction away from said plenum.