Device for ascertaining a fill level of a medium

A motor vehicle comprising an engine and a device associated with said engine for ascertaining a fill level of a medium inside a collection container;

• said device comprising:
• a) a measuring chamber, including an ultrasonic sensor;
• said measuring chamber capable of conducting medium to said collection container;
• b) an antechamber upstream from said measuring chamber comprising one or more webs;
• c) a deaerator in communication with said antechamber;
• d) an inlet for supplying medium from said collection container to said antechamber;
• and
• e) a flow damper capable of interfering with Schlichting flow;
• said flow damper positioned in said antechamber and proximate said inlet.

A device capable of interfering with Schlichting flow and of ascertaining a fill level of a medium inside a collection container associated an internal combustion engine;

• said device comprising:
• a) a measuring chamber, including a sensor;
• said measuring chamber capable of conducting medium to said collection container;
• b) an antechamber upstream from said measuring chamber;
• said antechamber comprising one or more webs;
• c) a deaerator in communication with said antechamber;
• d) an inlet for supplying medium from said collection container to said antechamber;
• and
• e) a flow damper positioned in said antechamber.

A device for ascertaining a fill level of a medium inside a collection container associated with an engine;

• said device comprising:
• a) a measuring chamber, including a sensor;
• said measuring chamber capable of conducting medium to said collection container;
• b) an antechamber upstream from said measuring chamber;
• said antechamber comprising at least one web;
• c) an inlet for supplying medium from said collection container to said antechamber;
• and
• d) a flow damper positioned in said antechamber.