Dual fan coaxial flow blower housing assembly
AssigneeFord Global Technologies, LLC
InventorsClay Wesley Maranville, Paul Bryan Hoke, James R. Hurd
Life of this patent
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Abstract
A blower assembly including a housing for a first scroll fan and a second scroll fan that are connected by a shaft to a motor that rotates the fans. The first and second scroll fans are coaxially mounted on the shaft. Fresh air ports and recirculated air ports are provided for the circulation of fresh air and recirculated air, respectively. The fresh air ports and recirculated air ports may be selectively opened and closed by doors to control the flow of air from the outside and from the passenger compartment as controlled by the HVAC system.
Claims18
A HVAC blower assembly comprising:
- a housing;
- a motor assembled to the housing;
- a first fan and a second fan operatively connected to the motor, the first fan and the second fan being coaxially aligned to draw air from a first inlet and a second inlet, respectively;
- and
- an outlet that receives the air from the first fan and the second fan and passes the air to a passenger compartment.
A HVAC blower assembly comprising:
- a housing that defines a first opening and a second opening;
- a motor disposed within the housing;
- a first blower scroll fan operatively connected to the motor that draws air through the first opening;
- a second blower scroll fan operatively connected to the motor that draws air through the second opening;
- a first closure member that controls air flowing through the first opening by controlling a first volume of air from a fresh air source and a second volume of air from a passenger compartment;
- and
- a second closure member that controls air flowing through the second opening from the passenger compartment.
Dependencies are inferred from the claim text.