Noise prevention devices for HVAC assemblies
AssigneeDENSO International America, Inc.
InventorZachary Schmitt
Life of this patent
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Abstract
A heating, ventilation, and air cooling (HVAC) assembly including a blower, an air inlet, and a movable airflow obstruction member. The air inlet is defined by a housing. The blower receives airflow passing through the air inlet. The movable airflow obstruction member is movable to: a deployed position in which the airflow obstruction member is arranged to reduce airflow volume through the air inlet a first degree; a non-deployed position in which the airflow obstruction member is arranged to not reduce airflow volume through the air inlet; and an intermediate position in which the airflow obstruction member is arranged to reduce airflow volume through the air inlet a second degree that is less than the first degree.
Claims9
A heating, ventilation, and air cooling (HVAC) assembly comprising:
- a blower;
- an air inlet defined by a housing, the blower receives airflow passing through the air inlet;
- and
- a movable airflow obstruction member that is movable to:
- a deployed position in which the airflow obstruction member is arranged against the air inlet to reduce airflow volume through the air inlet a first degree;
- a non-deployed position in which the airflow obstruction member is arranged spaced apart from the air inlet to not reduce airflow volume through the air inlet;
- and an intermediate position in which the airflow obstruction member is arranged to reduce airflow volume through the air inlet a second degree that is less than the first degree;
- wherein the air inlet has a first area when the movable airflow obstruction member is in the non-deployed position and spaced apart from the air inlet;
- and
- wherein the air inlet has a second area that is smaller than the first area when the movable airflow obstruction member is in the deployed position and arranged against the air inlet a controller configured to:
- arrange the movable airflow obstruction member in the deployed position when the HVAC assembly is in a foot mode;
- arrange the movable airflow obstruction member in the non-deployed position when the HVAC assembly is in a face mode;
- and
- arrange the movable airflow obstruction member in the intermediate position when the HVAC assembly is in a defrost mode or a bi-level mode.
Dependencies are inferred from the claim text.