Air duct arrangement for a refrigerator

An air duct arrangement for a refrigerator with forced air circulation comprises a refrigerating compartment closed by a front door and lodging a plurality of shelves and a diffusing duct, which is generally central and mounted close to a rear wall of the refrigerating compartment, in order to receive a refrigerated forced airflow from an air cooling compartment, comprising:

• at least one distributing duct disposed in the upper portion of the space defined below at least one of the shelves,
• said distributing duct having:
• a rear end opened to the inside of the diffusing duct;
• a front end disposed in the front region of said space adjacent to the front door and provided with a plurality of front openings turned to the front region of said space in whose upper portion is positioned the distributing duct;
• and
• a longitudinal duct extension disposed along the central upper portion of the respective space, from the diffusing duct and incorporating, frontally, two transversal duct extensions in which are provided the front openings.