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US 10,647,194 B1Granted
Multi-function grill shutter and airflow guide
AssigneesDENSO International America, Inc., Denso Corporation
InventorJoseph Burtch
Life of this patent
Estimating the term…
Abstract
An active grill shutter assembly including a plurality of airflow control blades. At least two of the airflow control blades have different curvatures or chord lengths configured to optimize airflow over a curvature of an air duct that the active grill shutter is mounted in. An actuator is linked to the plurality of airflow control blades with a linkage assembly to rotate the plurality of airflow control blades.
Claims20
An active grill shutter assembly comprising:
- a plurality of airflow control blades each including an upper surface and a lower surface that is opposite to, and shorter than, the upper surface, each one of the upper surface and the lower surface is continuously curved from an upstream end to a downstream end relative to airflow across the plurality of airflow control blades, at least two of the plurality of airflow control blades have different curvatures and chord lengths configured to optimize airflow over a curvature of an air duct that the active grill shutter is mounted in;
- and
- an actuator linked to the plurality of airflow control blades with a linkage assembly to rotate the plurality of airflow control blades.
An active grill shutter assembly comprising:
- a plurality of airflow control blades each including an upper surface and a lower surface that is opposite to, and shorter than, the upper surface, each one of the upper surface and the lower surface is continuously curved from an upstream end to a downstream end relative to airflow across the plurality of airflow control blades, at least two of the plurality of airflow control blades have different curvatures and chord lengths configured to optimize airflow over a curvature of an air duct that the active grill shutter is mounted in;
- an actuator linked to the plurality of airflow control blades with a linkage assembly to rotate the plurality of airflow control blades;
- an anemometer configured to measure air speed of airflow passing through the air duct;
- and
- a control module connected to the anemometer to receive the air speed and connected to a fan within the air duct to receive fan speed of the fan, the control module configured to operate the actuator to rotate the plurality of airflow control blades a predetermined degree based on the air speed and the fan speed to direct airflow evenly across a heat exchanger arranged in the air duct.
2 more elements
An active grill shutter assembly comprising:
- a plurality of airflow control blades, at least two of the plurality of airflow control blades have different curvatures or chord lengths configured to optimize airflow over a curvature of an air duct that the active grill shutter is mounted in;
- and
- an actuator linked to the plurality of airflow control blades with a linkage assembly to rotate the plurality of airflow control blades;
- wherein the linkage assembly includes:
- rod connected to the actuator such that the rod is movable by the actuator;
- a first linkage connecting the rod to the first airflow control blade;
- a second linkage connecting the rod to the second airflow control blade, the first linkage is shorter than the second linkage;
- and
- a third linkage connecting the rod to the third airflow control blade, the third linkage is longer than the first linkage and shorter than the third linkage.
6 more elements
Dependencies are inferred from the claim text.