Development of Low Noise Blower Fan Calsonic Corporation

Format:

Conference/Event

Author/Creator:

Saeki, Naofumi, author.

Conference Name:

1995 Vehicle Thermal Management Systems Conference and Exhibition (1995-05-09 : London, United Kingdom)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1997

Summary:

Noise reduction of Automotive HVAC systems is a hard task because of the highly complicated and very sensitive turbulent flow in the blower fan unit. First, we identified the location of noise sources by the Sound Intensity (SI) method, then we investigated the flow pattern by the oil-mist method. As a result, two main noise generation mechanisms have been identified. One mechanism is generated by the interaction of the strong steady flow of air in the unit with the fan wheel, and the other is from the turbulent flow between the fan blades.Results:A new fan blade design was developed that had improved control of the turbulent flow, and which configuration caused a noise reduction of 2 dB-A over current blown fan systems

Notes:

Vendor supplied data

Publisher Number:

971842

Access Restriction:

Restricted for use by site license