Patent ID: 9618228
Date: 2017-04-11
CPC Classifications: A21B,F24C,F24F

Claim:
1. An airflow delivery system comprising: an air moving element configured to move air in a flow path; a chamber in said flow path configured to receive product; an air transfer chamber comprising an inlet of a selected area for receiving air in said flow path in a first direction and an outlet of a selected area greater than said area of said inlet for discharging air in said flow path in a second direction different from said first direction; an airflow divider extending across said air transfer outlet and configured to divide airflow in said flow path; an airflow directional extending across said flow path downstream of said airflow divider and upstream of said chamber; said airflow directional having an upstream inlet face and a downstream outlet face and configured to receive airflow at said inlet face and split said airflow into multiple separated sub-paths within said flow path and to discharge said airflow from said downstream outlet face substantially parallel to said flow path and without substantial reduction in static pressure; said airflow directional comprising a first layer having an upstream inlet face and a downstream outlet face and multiple separated sub-paths within said flow path between said inlet face and said outlet face; said first layer configured to receive airflow at said inlet face of said first layer and split said airflow into said multiple separated sub-paths within said flow path and to discharge said airflow from said downstream outlet face of said first layer; said airflow directional comprising a second layer downstream from said first layer and having an upstream inlet face, a downstream outlet face and multiple separated sub-paths within said flow path between said inlet face and said outlet face; said second layer configured to receive airflow at said inlet face of said second layer from said outlet face of said first layer and to discharge said airflow from said downstream outlet face of said second layer; and wherein said multiple separated sub-paths of said second layer are configured relative to said multiple separated sub-paths of said first layer to split said airflow discharged from said multiple separated sub-paths of said first layer into said multiple separated sub-paths of said second layer and to discharge said airflow from said downstream outlet face of said second layer.