Filtering device at a controlled temperature
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United States of America Patent
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Issued Date -
May 12, 2005
app pub date -
Sep 27, 2004
filing date -
Nov 12, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A filtering device (1) for the particulate and volatile substances present in the emission gas of internal combustion engines, receives gas from the exhaust of a motor vehicle through a conveying duct (2); the device (1) comprises a filter (10) connected to the conveying duct (2) and a heat exchanger (3) positioned and connected so as to receive the emission gas from the conveying duct (2) and send it to the filter (10), a control valve (4), suitable for regulating the temperature of the emission gas entering the filter, by deviating an aliquot of the flow of emission gas coming from the vehicle exhaust to send it to the heat exchanger (3).
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