Abstract: 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.

Abstract: The invention relates to a coupling system (12) which is used to connect a tube (7) to a socket (8). Said tube (7) comprises a support (13) which is arranged on at least one or the ends thereof. Said support can be inserted into the socket (8) and the comprises, on the external side thereof, at least one annular groove (14) and a securing contour (16). The socket (8) comprises a stop contour (20) on the external side thereof. A coupling element (17), which is produced separately in relation to the socket (8) and the support (13), is placed on the outside on the support (13). The coupling element (17) comprises at least one stop hook (19) which engages behind the stop contour (20) when the support (13) is inserted into the socket (8). The coupling element (17) comprises at least one securing hook (18) which co-operates with the securing contour (16) in order to fix the coupling element (17) to the support (13) in an axial manner.

Abstract: 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.

Abstract: 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.

Abstract: 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.