DEVICE AND METHOD FOR DETERMINING THE STATE OF A PARTICLE FILTER

An automotive exhaust system has a particle filter with a permeability measuring assembly consisting of a sound source (1) which emits an ultrasonic signal (1.1) through the particle filter (3). The modified (1.2) sound is detected at another point in the filter by a sound detector (3) and the diffe...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	BREUER, NORBERT
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SEPARATION STEAM ENGINES TRANSPORTING WEAPONS
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