Patent ID: 11906201
Assignee: AIR DISTRIBUTION TECHNOLOGIES IP, LLC
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 16:
17. An exhaust fan unit of a heating, ventilation, and/or air conditioning (HVAC) system, the exhaust fan unit comprising:
an outer fluid path of a nozzle assembly of the exhaust fan unit defined by and between an outer wall of the nozzle assembly and an inner wall of the nozzle assembly;
an inner fluid path defined by and inward from the inner wall; and
a dual-tapered, leaf-shaped entrainment port extending from the outer wall to the inner wall and configured to enable environmental air to pass to the inner fluid path, wherein the dual-tapered, leaf-shaped entrainment port comprises:
a first curved surface;
a second curved surface; and
a bottom edge coupling the first curved surface with the second curved surface, wherein each bottom edge is configured to receive and drain liquids from the inner fluid path to an external environment.