Mann+hummel Gmbh

Markus Hanselmann

Thomas Jessberger

Pascal Neef

Mario Rieger

Guenter Goerg

Frank Pfeiffer

Daniel Schmid

Pedro Miguel Pereira Madeira

Arthur Sudermann

Michael Metzger

Stefan Walz

Robert Zbiral

Bjoern Schmid

Joachim Streich

Joerg Maier

Timo Dirnberger

Andreas Weber

Volker Kuemmerling

Sascha Bauer

Lukas Bock

Michael Thienel

Dennis Stark

Philipp Hettkamp

Andreas Pelz

Johannes Lampert

Juergen Kosicki

Dieter Weiss

Friedrich Kupfer

Hans-Peter Scholl

Christoph Wittmers

Klaus Waltenberg

Roman Eder

Guido Regener

Markus Schmidl

Peter Pekny

Jobst Eisengräber-Pabst

Christoph Goldbrunner

Axel Liebendoerfer

Daniela Knodel

Birgit Herbst

Günter Görg

Björn Schmid

Maik Hentschel

Horst Danneberg

Johannes Grad

Lisa Buerkle

Tobias Dost

Eva Hallbauer

Jürgen Kosicki

Steffen Gerlach

Maier Jörg

A battery degassing unit for a battery housing has a base body that has a gas passage opening and is to be connected fluid-tightly to a pressure compensation opening of the battery housing. A first filter covers the gas passage opening at an inner side of the base body. The first filter is a separation grid with first grid openings. A second filter is a separation grid arranged between first filter and inner side of the base body and has second grid openings. The base body has fastening regions for fastening the battery degassing unit to the battery housing. One of the first and second filters completely engages across the gas passage opening. One of the first and second filters is a corrugated filter so that a length extension in a stretched state in at least one direction is at least 1.3 times as large as in a corrugated state.

Battery degassing unit and battery housing

A degassing unit to be connected fluid-tightly to a pressure compensation opening of an electronics housing has a base body with gas passage opening. A semipermeable membrane, fastened fluid-tightly to a membrane carrier, allows gaseous media to pass from an environment into the electronics housing and in reverse but prevents passage of liquid media and solids. In normal operation, the membrane covers the gas passage opening. An axial seal circumferentially extends about the gas passage opening. The membrane carrier is moveable relative to the base body and, in normal operation, is pressed by axial force seal-tightly against the axial seal. The membrane carrier, when a predetermined pressure difference between housing interior and environment is surpassed, lifts off the base body to release an emergency degassing opening surrounding the membrane. The axial seal is a lip seal and made of a material softer than a material of the membrane carrier.

Degassing unit and electronics housing, in particular battery housing

A filter element for an air filter has a filter bellows with a filter medium folded multiple times. A recess is disposed in the filter bellows and is designed to receive a guiding rib of the air filter. The recess is curved at least in sections thereof along a length extension of the recess. The air filter has a housing and a guiding rib, wherein the filter element is arranged at least partially in the housing and the guiding rib is immersed at least partially in the recess of the filter element. In a method for producing the filter element, the recess in the filter bellows is formed with a computer-assisted separation method that forms the recess to be curved at least in sections thereof.

Filter element having optimized flow control

Brake dust filter

The invention relates to a filter unit for filtering gaseous fluids, comprising a filter insert part with a filter medium and a sealing element, said element being clamped between sealing struts on parts of the filter housing. The clamping force produced by the sealing struts that lie opposite one another runs at least approximately perpendicularly to the mounting direction of the housing parts.

Filter unit for filtering gaseous fluids

The invention relates to a plastic hollow part () and to a method for the manufacture of a plastic hollow part, wherein plastic material is introduced into a molding tool by means of a blowing or injection molding process, forming a hollow connection contour () and the plastic is formed into a hollow part (), wherein a support ring () is molded into the area of the connection contour ().

Plastic hollow part and method for the manufacture thereof

The invention relates to a filtering device, comprising a tubular filter element and a carrier part, with the filter element fastened thereon. The carrier part can be inserted between an unfiltered fluid pipe and a filtered fluid pipe. The pipes can be assembled into a continuous flow pipe, wherein the filter element protrudes into the pipe interior.

Filtering device

A filter device has a filter housing of connected housing parts with an inlet for unfiltered fluid and an outlet for filtered fluid. A filter element arranged in the filter housing separates the inlet seal-tightly from the outlet. A releasable anchoring device connects the housing parts. The anchoring device has a rotary insert having a guide and anchoring section and an interacting receptacle with an insertion/removal section. The rotary insert of the first housing part is arranged in the receptacle of the second housing part. The guide and anchoring section has a first rotary state in which it is positively guided for gliding in the insertion/removal section to guide the housing parts when being connected or separated. In a second rotary state the guiding and anchoring section is secured in an anchoring section of the receptacle for securing the housing parts. The insertion/removal section passes into the anchoring section.

Filter device for filtration of a fluid

Growing community of inventors

Lauffen a. N., Germany

Markus Hanselmann