Ventilation assistance for use in filler channel of reducing agent container in passenger car, is designed as choke restrictive to cross-section of filler channel, where choke is formed as collar extending into filler channel

摘要

The ventilation assistance is designed as a choke restrictive to the cross-section of a filler channel. The choke is formed as a collar extending into the filler channel. The collar forms an extension of the filler channel of a filling container. The collar comprises a partly broken cross-section. The length of the collar is selected according to the slope of the filler channel.