Mahle Filtersysteme Gmbh

Mable Filtersysteme Gmbh

Mahle International Gmbh

Frankische Rohrwerke Gebr. Kirchner Gmbh + Co Kg

Frank Reiners

Jürgen Stehlig

Sören Schröter

Manfred Krauss

Hagen Zelssmann

Andreas Baumann

The invention relates to an adsorption filter for fuel vapors, particularly from the fuel tank of a combustion engine of a motor vehicle, which can be regenerated by desorptive reverse flow back flushing and which interacts with heat accumulating substances via the adsorbable or desorbable filter material. The aim of the invention is to increase the heat accumulability inside the filter material. To this end, the heat accumulating substances consist of phase-change materials (PCM) that are distributed in small units within the reactive filter material.

Adsorption filter for fuel vapors

The invention relates to a ventilation system for a fuel tank of an internal combustion engine, the device comprising a filter. The aim of the invention is to functionally improve one such device, simultaneously reducing the structural volume thereof by saving filter volume. To this end, the inventive device is characterized by at least one of the following features: a first stop valve leading to the atmosphere communicates with the same via an air intake filter of the internal combustion engine; and the inner chamber of the tank and the air-guiding region located between the tank and the stop valves are connected to a pump which sucks air from the atmosphere into said region via the air intake filter of the internal combustion engine, if one such pump is available.

Ventilation system for a fuel tank of an internal combustion engine

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Waiblingen, Germany

Frank Reiners