Patents Assigned to Mahle Filtersysteme GmbH
  • Patent number: 6585894
    Abstract: A ring-shaped filter element through which material can flow radially. Web material as is provided filter material which is folded in a zigzag shape and sealingly connected at its longitudinal sides relative to a ring-shaped end plate. The end plate is formed of a first area made of a first material, and extends peripherally and not covering a radial inner and/or outer edge area. A second area forms this edge area and is designed for a seal-tight placement onto a connecting part, of a second material. The ring-shaped filter element contains a second area having a second material which is foamed simultaneously onto the web material of the first material already connected fixedly with the web material.
    Type: Grant
    Filed: November 9, 2000
    Date of Patent: July 1, 2003
    Assignee: Mahle Filtersysteme GmbH
    Inventors: Hans Gebert, Horst Schneider, Hans Waibel
  • Patent number: 6581561
    Abstract: The invention describes a plastic embodiment for a suction system, whereby various configurations of said embodiment can be produced at low cost. According to the invention, a modular structured suction system is created. Said system comprises a plastic air distributor module which can be connected to an air feed pertaining to an internal combustion engine; several plastic, single-pieced suction pipe modules, whereby one end of the suction pipes is joined to the air distributor module and the suction pipes are respectively allocated to a combustion chamber of the internal combustion engine; in addition to at least one plastic single-pieced flange module that is connected to the other end of the suction pipe of at least one suction pipe module and which can be secured to the internal combustion engine.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: June 24, 2003
    Assignee: Mahle Filtersysteme GmbH
    Inventors: Kay Brodesser, Hans-Peter Drespling, Hans Jensen, Günter Kachler, Horst Schneider, Jürgen Stehlig
  • Patent number: 6543624
    Abstract: The aim of the invention is to improve the backwashing action of a backwashable filter for liquids comprising the following: a filter body which is located in a housing and which separates an incoming flow chamber from an outgoing flow chamber and a backwashing channel which lies adjacent to the filter body, is situated in the outgoing flow chamber and has a backwashing opening that faces towards the filter body, said backwashing channel also communicating with a source of a cleaning medium and said cleaning medium being subjected to pressure in the backwashing channel, and the filter body and the backwashing channel being moveable in relation to each other. To this end, the filter body has links on a side facing towards the backwashing channel which are set apart from each other in the direction of motion.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: April 8, 2003
    Assignee: Mahle Filtersysteme GmbH
    Inventor: Heinz Geisbauer
  • Patent number: 6505641
    Abstract: A device for an arrangement inside a fuel tank, provided with pumps and filters for supplying and filtering fuel that is fed to an internal combustion engine, whereby the fuel is conveyed from the bottom area of the tank through a first filter into a collector chamber and fuel is conveyed from said collector chamber by means of a second pump through a second filter to the internal combustion chamber. Both pumps are arranged in a pump unit. The collector chamber is arranged vertically above the pump unit and the filter with respect to the fitting position of the device and is embodied as an open overflow container, whereby the inventive device can be produced in a rational manner and offers good functionality.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: January 14, 2003
    Assignees: Mahle Filtersysteme GmbH, Kautex Textron GmbH & Co. KG
    Inventors: Hans Gebert, Horst Schneider, Jim Siekmann, Hans Waibel, Rüdiger Walter
  • Patent number: 6379438
    Abstract: The invention relates to a plate filter element for an air filter comprising a zigzag-shaped, folded strip material made of an activated carbon nonwoven material. The aim of the invention is to improve the dimensional stability of the activated carbon nonwoven material, especially in the area of an end fold. To this end, the invention provides that an end fold of the strip material comprises a sealing which is formed by gluing or fusing an upper side with an underside of the activated carbon nonwoven material.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: April 30, 2002
    Assignee: Mahle Filtersysteme GmbH
    Inventors: Horst Schneider, Hans Waibel
  • Patent number: 6379537
    Abstract: An oil filter 1 for an internal combustion engine includes a filter body 3 and a plastic filter housing 2. Integrally formed within the filter housing, a safety wall 7 is radially fitted around the feed channel 4 and the return channel 5 creating a collecting space 6 that surrounds both channels. If seal leaks occur when the device is connected to a flange, e.g. of an engine block, the leaked oil will accumulate in the collecting space.
    Type: Grant
    Filed: July 27, 2000
    Date of Patent: April 30, 2002
    Assignee: Mahle Filtersysteme GmbH
    Inventors: Thomas Brieden, Markus Layer