A. Kayser Automotive Systems Gmbh

Stephan Ammermann

Heiko Freter

An active carbon filter unit for a tank system consists of a housing () in which two chambers () are formed, carrying an active carbon filling, which form a section of a flow path which at its one end leads via a valve () and an air filter () into the ambient atmosphere and at its other end leads via a valve () and a non-return valve () to a connection for producing an underpressure or into the suction region of an internal combustion engine and via a connection () into the tank system. The valves (), the non-return valve () and a housing part () receiving the electrical connections thereof are part of a uniform control module (), which is exchangeably inserted into a recess () of the housing (). The control module () is equipped with almost all functional elements of a technical nature relating to measurement, control and energy supply which are necessary for an aeration and air removal operation, a flushing operation directed to a regeneration of the active carbon, and a tightness check of the tank system.

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Gottingen, Germany

Stephan Ammermann