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US 12,578,105 B2Granted
Fresh air inlet
AssigneeBroan-NuTone LLC
InventorStéphane Michaud
Life of this patent
Estimating the term…
Abstract
An air inlet for an air handling unit includes a duct defining a passageway leading to the air handling unit. The fresh air inlet further includes an intake screen that is formed to include a plurality of openings sized to allow airflow to pass through the openings to the air handling unit. Accumulated particles are removed from surfaces of the intake screen with a screen cleaning system.
Claims19
An air inlet for a building structure having an air handling unit, the air inlet comprising:
- a duct mount configured to couple to a duct configured to direct air into the building structure, the duct comprising an opening defining an aperture;
- an intake screen configured to span the duct aperture, the intake screen defining a plurality of openings sized to allow airflow to pass through the plurality of openings to the duct;
- and
- a screen cleaning system coupled to at least one of the duct mount and the intake screen and configured to remove accumulated particles from surfaces of the intake screen surrounding the plurality of openings, wherein the screen cleaning system comprises
- a screen cleaner positioned to engage the surfaces of the intake screen surrounding the openings,
- an actuator configured to drive at least one of the intake screen and the screen cleaner relative to one another so that the screen cleaner removes the accumulated particles from the surfaces of the intake screen surrounding the plurality of openings, and
- a screen mount coupled to the intake screen and wherein the actuator is configured to engage the screen mount and move the intake screen and the screen mount relative to the screen cleaner to remove the accumulated particles from the surfaces surrounding the plurality of openings.
4 more elements
An air inlet for a building structure having an air handling unit, the air inlet comprising:
- a duct mount configured to couple to a duct configured to direct air into the building structure, the duct comprising an opening defining an aperture;
- an intake screen configured to span the duct aperture, the intake screen defining a plurality of openings sized to allow airflow to pass through the plurality of openings to the duct;
- and
- a screen cleaner configured to be in contact with the intake screen;
- a motor configured to rotate one of the intake screen and the brush relative to one another;
- and
- a screen mount coupled to the intake screen and wherein the motor is configured to engage the screen mount and move the intake screen and the screen mount relative to the screen cleaner to remove the accumulated particles from the surfaces surrounding the plurality of openings.
4 more elements
An air inlet for a building structure having an air handling unit, the air inlet comprising:
- a duct mount configured to couple to a duct configured to direct air into the building structure, the duct comprising an opening defining an aperture;
- an intake screen configured to span the duct aperture, the intake screen defining a plurality of openings sized to allow airflow to pass through the openings to the duct;
- and
- a screen cleaning system coupled to at least one of the duct mount and the intake screen and configured to remove accumulated particles from surfaces of the intake screen surrounding the plurality of openings, wherein the screen cleaning system comprises
- a screen cleaner positioned to engage the surfaces of the intake screen surrounding the openings,
- a first brush positioned on a first side of the intake screen,
- a second brush positioned on a second side of the intake screen opposite the first side.
4 more elements
An air inlet for a building structure having an air handling unit, the air inlet comprising:
- a duct mount configured to couple to a duct configured to direct air into the building structure, the duct comprising an opening defining an aperture;
- an intake screen configured to span the duct aperture, the intake screen defining a plurality of openings sized to allow airflow to pass through the openings to the duct;
- a screen cleaner configured to be in contact with the intake screen;
- a motor configured to rotate one of the intake screen and the screen cleaner relative to one another;
- a control system including a timer, a microprocessor, and a memory storage device storing instructions that, when executed by the microprocessor, cause the motor to activate in response to the timer reaching a predetermined threshold, wherein the control system is configured to stop airflow through the opening when the motor is activated.
2 more elements
Dependencies are inferred from the claim text.