Coupling head with a filter element

摘要

The present invention relates to a coupling head for coupling a towing vehicle to a trailer.;According to the invention, in the coupling head a filter element is used. The filter element is bypassed by a continuously open by-pass. Preferably, the path through the by-pass has at least one redirection in the region of an undercut. As a result of the redirection, contaminants in the compressed air are not or not fully transferred through the by-pass. The by-pass might also ensure a supply of compressed air to the trailer, for example, when the filter element is at least partly blocked due to the contaminants. According to the invention, a valve element used to open the by-pass in the case of increasing blockage of the filter element is not required.

主权项

1. A coupling head for a commercial vehicle comprising a glad hand with:
a) a filter element with compressed air flowing therethrough; b) a permanently open by-pass which bypasses the filter element; and c) a connection region that pneumatically couples a tractor with a trailer of the commercial vehicle or pneumatically couples another trailer with the trailer of the commercial vehicle.