Patents by Inventor Jochen Linhart
Jochen Linhart has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20110312492Abstract: The invention relates to a method for producing a ceramic filter element in an exhaust gas filter for an internal combustion engine, in particular a diesel particulate filter, wherein a base paper carrier web is soaked with a ceramic slip and then burnt out. The base paper carrier web uses a thickness and/or structure that varies over the width and/or length of the base paper carrier web.Type: ApplicationFiled: August 10, 2011Publication date: December 22, 2011Applicant: MANN+HUMMEL GMBHInventors: Jochen LINHART, Kathrin LICHTENWALTER, Sabine OTTERBACH
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Publication number: 20110289895Abstract: A ceramic filter element of ceramic material has an exterior surface that is provided with structural elements. The structural elements are produced by a non-cutting method. The structural elements are molded in the ceramic material in the form of grids, periodic patterns, irregular patterns, lettering or labels.Type: ApplicationFiled: August 8, 2011Publication date: December 1, 2011Applicant: MANN+HUMMEL GMBHInventors: Jochen LINHART, Sabine OTTERBACH, Kathrin LICHTENWALTER, Michael MICKE, Karin GERLACH
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Publication number: 20110283670Abstract: In a method for producing a ceramic filter element for an exhaust gas filter for an internal combustion engine or a catalyst support, a combustible non-ceramic support web is used and holes or recesses are introduced into the non-ceramic support web at defined locations.Type: ApplicationFiled: August 5, 2011Publication date: November 24, 2011Applicant: MANN+HUMMEL GMBHInventors: Jochen Linhart, Holger Findeisen, Andreas Franz, Kathrin Fischer, Kathrin Lichtenwalter, Sabine Otterbach
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Patent number: 8029586Abstract: A filter pipeline for an air intake system of an internal combustion engine has a tubular body and a filter element arranged in the tubular body. The filter element is a filter bag of a flexible material that has an opening and is attachable in the area of the opening to the tubular body. The filter bag and an inner wall of the tubular body are shaped such that in a circumferential direction of the pipeline different spacings are provided between the filter bag and the inner wall of the tubular body.Type: GrantFiled: February 14, 2007Date of Patent: October 4, 2011Assignee: Mann+Hummel GmbHInventors: Jochen Linhart, Sascha Bauer, Michael Fasold
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Publication number: 20110173939Abstract: A method of manufacturing a ceramic diesel particle filter (DPF) and a DPF manufactured by the method, the DPF having a ceramic filter body (1) including gas channels (18, 18?) with planar and porous filter segments (3), which are provided for the exhaust gas stream (2) to flow through them transversely to the face of the filter segments (3). The filter body (1) is formed by sintering at least one ceramic-impregnated fiber web (4) in a firing step under heat such that fibers (5) of the fiber material are burned off and the ceramic material (6) is sintered together to form the porous filter segment (3) between its two surfaces (7, 8). At least one fiber web (4) is corrugated to form the gas channels (18, 18?) and rolled up to form the filter body (1), and the cross section of at least a portion of the gas channels (18, 18?) changes from an inlet end (33) to a discharge end (34).Type: ApplicationFiled: February 24, 2011Publication date: July 21, 2011Applicant: MANN+HUMMEL GMBHInventors: Karin GERLACH, Stefan TUDYKA, Jochen LINHART, Andreas FRANZ
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Publication number: 20100236206Abstract: In a method for manufacturing a filter element of layers of a flat material and a corrugated material resting against one another, wherein the corrugated material has peaks and valleys, an adhesive is applied onto the flat material or the peaks of the corrugated material in a direction substantially parallel to the peaks of the corrugated material to be glued onto the flat material. The peaks of the corrugated material are then glued onto the flat material. A filter element is thus produced of layers of a flat material and a corrugated material resting against one another, wherein the corrugated material has peaks and valleys, wherein the peaks of the corrugated material are glued onto the flat material by adhesive strips that extend substantially parallel to the peaks.Type: ApplicationFiled: March 19, 2010Publication date: September 23, 2010Applicant: MANN+HUMMEL GMBHInventors: Susanne Klupski, Jochen Linhart, Josef Rohrmeier
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Publication number: 20100180560Abstract: The invention concerns a device for aftertreatment of a hot exhaust gas flow (2), in particular of a diesel engine, comprising a ceramic filter body (1) of a ceramic material (6) with gas passages (18, 18?). The filter body (1) is formed unitarily of at least one fiber web (4, 4?), in particular paper, impregnated with the ceramic material (6) with formation of the gas passages (18, 18?) and configured with heat exposure by sintering such that fibers of the fiber web (4, 4?) are burnt off and in that the ceramic material (6) is sintered together as a unitary monolithic part to form the filter body (1). At least two ceramic filter bodies (1) are provided that are separately embodied from one another and connected fluidically parallel to one another. Each filter body (1) is limited with regard to its size such that it withstands the thermal loads of the hot exhaust gas flow (2).Type: ApplicationFiled: March 7, 2008Publication date: July 22, 2010Applicant: MANN+HUMMEL GMBHInventors: Michael Micke, Karin Gerlach, Jochen Linhart, Kathrin Lichtenwalter, Sabine Otterbach, Holger Findeisen
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Patent number: 7713324Abstract: A filter composed of a filter medium (10) formed from a corrugated filter layer (11) and a flat filter sheet (12) which are interconnected by embossing points (15). This eliminates the need for an additional joining agent. Production of the filter is simplified because no additional materials are required to be supplied or cured.Type: GrantFiled: December 19, 2006Date of Patent: May 11, 2010Assignee: Mann + Hummel GmbHInventors: Jochen Linhart, Andreas Franz
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Publication number: 20100089518Abstract: The invention concerns a method for producing a ceramic filter body (1) for filtering an exhaust gas stream (2) of a diesel engine. The filter body (1) has planar and porous filter sections (3) that are designed to be passed by the exhaust gas flow (2) in a direction transverse to the face of the filter sections (3). A planar permeable fiber web (4, 4?), in particular of filter paper, is first impregnated with finely ground ceramic material (6) only across sections under formation of a non-impregnated section (12). The only partially ceramic-impregnated fiber web (4, 4?) is subsequently brought into the shape of a blank of the filter body (1) in such a way that the impregnated areas of the fiber web (4, 4?) assume the shape of the filter body (1).Type: ApplicationFiled: November 26, 2007Publication date: April 15, 2010Applicant: MANN+HUMMEL GMBHInventors: Jochen Linhart, Andreas Franz
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Patent number: 7591951Abstract: A fuel filter for cleaning fuel, particularly for engines of motor vehicles, having a filter housing (10) with an inlet (14), an outlet (15), and a filter element (16) for cleaning the fuel situated between the inlet (14) and the outlet (15). A collecting space (20) for water separated from the fuel additionally is provided in the filter housing (10), and a water discharge device (23) having a housing (24) is also arranged in the filter housing. Discharge device housing (24) has an inlet (33) and an outlet (28), between which a membrane (25) that is permeable for water molecules is situated, and the water-permeable membrane (25) has channel structures (26) which are closed in a sealed manner at their upper ends.Type: GrantFiled: December 7, 2005Date of Patent: September 22, 2009Assignee: Mann & Hummel GmbHInventors: Jochen Linhart, Michael Micke, Michael Fasold
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Patent number: 7501004Abstract: A filter element comprising a filter medium which extends through an axial length between an end face at a clean air end and an end face at an unfiltered air end such that the filter medium separates an unfiltered air end of the filter element from a clean air end, in which the filter medium is circumferentially surrounded by a jacket and attached in a sealed manner to the jacket, and in which contours for securing the filter element in a filter housing are arranged on the jacket of the filter element.Type: GrantFiled: March 21, 2007Date of Patent: March 10, 2009Assignee: Mann & Hummel GmbHInventors: Thomas Tschech, Frank Skudlarz, Sascha Bauer, Klaus Arnegger, Michael Fasold, Jochen Linhart, Klemens Dworatzek
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Publication number: 20090031681Abstract: A filter pipeline for an air intake system of an internal combustion engine has a tubular body and a filter element arranged in the tubular body. The filter element is a filter bag of a flexible material that has an opening and is attachable in the area of the opening to the tubular body. The filter bag and an inner wall of the tubular body are shaped such that in a circumferential direction of the pipeline different spacings are provided between the filter bag and the inner wall of the tubular body.Type: ApplicationFiled: February 14, 2007Publication date: February 5, 2009Applicant: MANN+HUMMEL GMBHInventors: Jochen Linhart, Sascha Bauer, Michael Fasold
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Publication number: 20080141638Abstract: A diesel particle filter having a ceramic filter body (1) made of a ceramic material (6) for filtering an exhaust gas stream (2) of a diesel engine. The filter body (1) has gas channels (18, 18?) with planar and porous filter segments (3), which are provided for the exhaust gas stream (2) to flow through them transversely to the face of the filter segments (3). The filter body (1) is formed by sintering at least one ceramic-impregnated fiber web (4), particularly paper, under heat such that fibers (5) of the fiber material are burned off and the ceramic material (6) is sintered together to form the continuously porous and gas-permeable filter segment (3) between its two surfaces (7, 8). At least one fiber web (4) is corrugated to form the gas channels (18, 18?) and rolled up to form the filter body (1), and the cross section of at least a portion of the gas channels (18, 18?) changes from an inlet end (33) to a discharge end (34).Type: ApplicationFiled: November 27, 2007Publication date: June 19, 2008Applicant: Mann & Hummel GmbHInventors: Jochen Linhart, Karin Gerlach, Andreas Franz
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Publication number: 20070251392Abstract: A filter element comprising a filter medium which extends through an axial length between an end face at a clean air end and an end face at an unfiltered air end such that the filter medium separates an unfiltered air end of the filter element from a clean air end, in which the filter medium is circumferentially surrounded by a jacket and attached in a sealed manner to the jacket, and in which contours for securing the filter element in a filter housing are arranged on the jacket of the filter element.Type: ApplicationFiled: March 21, 2007Publication date: November 1, 2007Applicant: Mann & Hummel GmbHInventors: Thomas Tschech, Frank Skudlarz, Sascha Bauer, Klaus Arnegger, Michael Fasold, Jochen Linhart, Klemens Dworatzek
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Publication number: 20070240393Abstract: In an air connection unit (10) for an air filter housing (20, 21) having at least one fitting (11) into which is integrated at least one maintenance interval indicator or maintenance switch connection (12) and which is rotatably supportable in an opening in the air filter housing (20), an air guiding element adjacent the fitting (11) is formed as a corrugated tube (14) over at least a portion of its length. This enables a simple alignment, substantially without restoring forces, of the maintenance switch connection (12) relative to the air filter housing (20).Type: ApplicationFiled: March 16, 2007Publication date: October 18, 2007Applicant: MANN & HUMMEL GmbHInventors: Klemens Dworatzek, Sascha Bauer, Jochen Linhart, Michael Fasold
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Patent number: 7281508Abstract: A rocker cover assembly for a cylinder head of an internal combustion engine includes a rock cover, a gasket element and a stabilizing core. The gasket element is disposed between the rocker cover and the cylinder head, and includes a sealing material. The stabilizing core is inserted in the gasket element and surrounded at least essentially completely by the sealing material of the gasket element. The stabilizing core is isolated from the rocker cover such that the sealing material of the gasket element is arranged between the stabilizing core and the rocker cover.Type: GrantFiled: December 5, 2005Date of Patent: October 16, 2007Assignees: Mann & Hummel GmbH, Federal-Mogul Sealing Systems Bretten GmbHInventors: Sascha Bauer, Jochen Linhart, Michael Fasold, Peter Mueller, Ralf Salameh
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Publication number: 20070137157Abstract: A filter composed of a filter medium (10) formed from a corrugated filter layer (11) and a flat filter sheet (12) which are interconnected by embossing points (15). This eliminates the need for an additional joining agent. Production of the filter is simplified because no additional materials are required to be supplied or cured.Type: ApplicationFiled: December 19, 2006Publication date: June 21, 2007Applicant: Mann & Hummel GmbHInventors: Jochen Linhart, Andreas Franz
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Publication number: 20060118073Abstract: A rocker cover assembly for a cylinder head of an internal combustion engine includes a rock cover, a gasket element and a stabilizing core. The gasket element is disposed between the rocker cover and the cylinder head, and includes a sealing material. The stabilizing core is inserted in the gasket element and surrounded at least essentially completely by the sealing material of the gasket element. The stabilizing core is isolated from the rocker cover such that the sealing material of the gasket element is arranged between the stabilizing core and the rocker cover.Type: ApplicationFiled: December 5, 2005Publication date: June 8, 2006Applicants: Mann & Hummel GmbH, Federal-Mogul Sealing Systems Bretten GmbHInventors: Sascha Bauer, Jochen Linhart, Michael Fasold, Peter Mueller, Ralf Salameh
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Publication number: 20060118478Abstract: A fuel filter for cleaning fuel, particularly for engines of motor vehicles, having a filter housing (10) with an inlet (14), an outlet (15), and a filter element (16) for cleaning the fuel situated between the inlet (14) and the outlet (15). A collecting space (20) for water separated from the fuel additionally is provided in the filter housing (10), and a water discharge device (23) having a housing (24) is also arranged in the filter housing. Discharge device housing (24) has an inlet (33) and an outlet (28), between which a membrane (25) that is permeable for water molecules is situated, and the water-permeable membrane (25) has channel structures (26) which are closed in a sealed manner at their upper ends.Type: ApplicationFiled: December 7, 2005Publication date: June 8, 2006Applicant: Mann & Hummel GmbHInventors: Jochen Linhart, Michael Micke, Michael Fasold
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Publication number: 20050115216Abstract: A filter element having hydrophobic properties for separating solid and/or liquid particles from fluid media, in which the filter medium is provided with an inorganic nonmetallic coating, in particular a silicate coating, in order to provide or create and impregnated, hydrophobic surface.Type: ApplicationFiled: June 14, 2004Publication date: June 2, 2005Applicant: Mann+ Hummel GmbHInventors: Sascha Bauer, Michael Fasald, Jochen Linhart, Peter Mueller, Alrun Spennemann, Holger Findeisen