Ventilation assembly
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United States of America Patent
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Feb 13, 2018
Issued Date -
N/A
app pub date -
Oct 3, 2014
filing date -
Oct 4, 2013
priority date (Note) -
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Abstract
A ventilation assembly, particularly for a vehicle, has a cowl with a conduit for air flow. The conduit has a first portion and a second portion having a smaller diameter and a joining portion joining the first and second portions. A fan is disposed in the conduit. The fan has an impeller with a peripheral ring having a lip. An annular passage is formed between the ring and the conduit. The lip has a substantially frusto-conical shape; and the joining portion of the conduit has a substantially frusto-conical shape, with an inclination angle (α) at least approximately corresponding to that of the lip of the impeller. The inclination angle (α) is between 115° and 145°.
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