Patent ID: 11892098
Assignee: GREENHECK FAN CORPORATION
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. An airflow valve comprising:
a housing defining an inlet, an outlet, and a conduit between the inlet and the outlet;
an adjustment plate located in the conduit and configured to rotate about an adjustment plate axis, wherein the adjustment plate extends from the adjustment plate axis toward the outlet;
a valve plate located in the conduit and configured to rotate, separately from the adjustment plate, about a valve plate axis, wherein the valve plate comprises a first portion extending from the valve plate axis toward the inlet and a second portion extending from the valve plate axis toward the outlet;
a spring biasing the valve plate to a home position relative to the adjustment plate;
an actuator, fixed relative to the adjustment plate, comprising an actuator shaft that is rotatable in response to an input signal;
an actuator gear fixed relative to the actuator shaft; and
a conduit gear fixed relative to the housing, wherein the actuator shaft is coupled to an interior surface of the housing via the actuator gear and the conduit gear, and wherein the airflow valve is configured to rotate the adjustment plate about the adjustment plate axis by rotating the actuator shaft while the actuator gear contacts the conduit gear.