Patent ID: 11892189
Assignee: JOHNSON CONTROLS TYCO IP HOLDINGS LLP
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  G | IPC F  G

Claim 11:
12. A terminal unit of a heating, ventilation, and/or air conditioning (HVAC) system, the terminal unit comprising:
a housing defining an airflow path including a chamber, the chamber including a first corner and a second corner opposing the first corner;
a fan disposed in the chamber and configured to move an airflow through the chamber and into a room; and
an inlet diffuser disposed in the chamber upstream of the fan, wherein the inlet diffuser is coupled to the housing at the first corner of the chamber and at a mid-section of a housing wall extending from and partially defining the second corner of the chamber, and the inlet diffuser includes a first layer of perforated metal and a second layer of perforated metal disposed between the first layer of perforated metal and the fan such that the first layer of perforated metal and the second layer of perforated metal are arranged in series relative to the airflow and configured to enable the airflow to pass therethrough.