SUPPLY AIRFLOW CONTROL FOR DUAL-DUCT SYSTEM

摘要

PATENTTitleSUPPLY AIRFLOW CONTROL FOR DUAL-DUCT SYSTEMInventorHarry Kenneth RingAbstractTwo variable position supply air valves, one formodulating warm airflow to a comfort zone and the other formodulating cool airflow, each have a constant intermediate openposition to provide at least a desired minimum airflow, and bothcan be controlled so that only one valve is open at any one timeto minimize any mixing of the airstreams. Potentiometers areused to adjust the intermediate open position of each valve andto adjust at least one valve's relationship of valve opening tozone temperature.