Mann+hummel Gmbh

Holger Schwarz

Norbert Strassenberger

Michael Micke

Rainer Loos

Bernd Nageldinger

Yihao Zhu

Norbert Straßenberger

A filter element for a liquid filter is arranged in the liquid filter housing that has at least two housing parts such that an inlet of the housing for liquid to be filtered is separated from an outlet of the housing for filtered liquid. The filter element has a filter medium provided with a terminal disk. The terminal disk has a seal support for an outer radial annular seal that is to be clamped in a clamping area between the housing parts that are separable from each other. The seal support of the filter element has axially at least a base member and a cover member. The base member is fixedly connected to the terminal disk. The cover member is attached to the terminal disk, to the base member, or to terminal disk and base member. The annular seal is positioned between base member and cover member.

Filter element of a liquid filter and a liquid filter

A device and a method for operating a fuel filter () with a diaphragm () for cleaning water separated from the fuel, comprising a collecting chamber () for the water geodetically arranged at the bottom in a housing () of the fuel filter (), are proposed, comprising at least one sensor () each for the maximum () and for the minimum () water level in the collecting chamber (), by means of which a valve () for discharging the water from the collecting chamber () arranged between the collecting chamber () and a water purification device () containing the diaphragm () is controllable. A detection device () for detecting the flow behavior of the water between the collecting chamber () and the water purification device () is present with which at least the time interval (t) of the change of the water level between a signal of the sensor () for the maximum and of the sensor () for the minimum water level is detectable and in that a computing and memory unit () for the evaluation of the signals in the detection device () and for signaling () a deviation from a predetermined flow behavior of the diaphragm () is present.

Device and method for operating a fuel filter

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Muenster, Germany

Holger Schwarz