Mann+hummel Gmbh

Juergen Schmitt

Klaus-Dieter Ruhland

Michael Kaufmann

Martin Wuebbeling

Andrew Glynn

A filter device has a housing plate with a sleeve extending along a longitudinal axis perpendicular to the housing plate. The sleeve guides fluid containing particles along an inner sleeve surface to separate particles from the fluid and discharge the particles via a discharge window of the sleeve. An immersion tube plate opposite the housing plate has an immersion tube projecting coaxially into the sleeve for outflow of the fluid. The immersion tube has a sealing and centering section about an outer circumference of the immersion tube that forms a sealing surface parallel to the longitudinal axis and radially seals with an inner surface of the sleeve. The sealing and centering section extends about the immersion tube to provide coaxial alignment with the sleeve. A radial and/or axial expansion of the sealing and centering section is reduced in a predetermined region of the immersion tube opposite the discharge window.

Filter device

A multi-cyclone separator of a multi-stage fluid filter for cleaning gaseous fluid is provided with a plurality of cyclone cells for separating particles and/or liquid from the gaseous fluid. The cyclone cells each have an inlet for the gaseous fluid to be purified, an outlet for the gaseous fluid freed of particles and liquid, and at least one discharge window discharging the separated particles and liquid. At least one discharge chamber is provided, and the discharge windows of the cyclone cells open into the at least one discharge chamber. At least one discharge opening leads out of the at least one discharge chamber. The at least one discharge chamber tapers in a funnel shape toward the at least one discharge opening. A multi-stage fluid filter is provided with the multi-cyclone separator that is arranged upstream of a main filter of the multi-stage fluid filter.

Multi-cyclone separator of a multi-stage fluid filter for cleaning gaseous fluid and multi-stage fluid filter

A cyclone separator for separating liquid and/or solid particles from a fluid is provided with three or more cyclone cells that each have a cell pipe provided with a guiding device. The guiding devices cause the fluid to rotate and to separate the particles from the fluid by the rotation of the fluid. The cell pipes each have a particle exit opening for letting out the particles that have been separated by rotation from the fluid. One or more particle outlets are provided to discharge from the cyclone separator the particles that have exited from the cell pipes.

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Hanhofen, Germany

Juergen Schmitt