Noise-attenuating snorkel duct for air-handling system recirculation vent
US10315490B2 · kind B2 · utility
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4References
20Claims
0Family size
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Key dates
| Filing date | Jul 10, 2014 |
| Grant date | Jun 11, 2019 |
| Priority date | — |
| Expiry date | Sep 15, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60H2001/006
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicular air-handling system includes a blower assembly for a vehicle having a fan and a return-air baffle operable between a fresh-air position. The fan is in communication with a fresh-air duct and a recirculating position and the fan is at least partially in communication with a recirculating duct. A noise-attenuating end of the recirculating duct is positioned below an instrument panel of the vehicle and oriented substantially perpendicular to a portion of a floor below the instrument panel, wherein noise from the fan drawing air through the recirculating duct is directed into the floor below the instrument panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.