Patents by Inventor Timo Walz
Timo Walz 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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Patent number: 7918217Abstract: Exhaust gas check valve with a movable valve element held by a plurality of return springs, an exhaust gas through-opening closable by the valve element, and a stop element delimiting the stroke of the valve element; in order to improve the service life of the check valve, damping means are provided in the check valve for bringing about a comparatively gentle breaking of the valve element when at the end of its stroke it approaches that position in which the check valve is fully open, the damping means comprising spring elements holding the stop element, and/or a gas space which, when the check valve is open, is defined and at least almost closed by the valve element and the stop element.Type: GrantFiled: March 31, 2009Date of Patent: April 5, 2011Assignee: ElringKlinger AGInventor: Timo Walz
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Patent number: 7771641Abstract: A lid component part of an internal combustion engine with integrated elastic seal, such as, for example, is provided to a cylinder head gasket or oil pan and a process for its manufacture. The component part exhibits a circumferential flange area for the arranging of the integrated seal. The component part is based on a plastic-material, while the seal essentially comprises an organic elastomer material. The component part and the seal are chemically bonded with one another. The seal is applied by injection molding onto the component part.Type: GrantFiled: November 18, 2008Date of Patent: August 10, 2010Assignee: Federal Mogul Sealing Systems Bretten GmbHInventors: Ralf Salameh, Timo Walz
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Patent number: 7765976Abstract: A lid component part of an internal combustion engine with integrated elastic seal, such as, for example, is provided to a cylinder head gasket or oil pan and a process for its manufacture. The component part exhibits a circumferential flange area for the arranging of the integrated seal. The component part is based on a plastic-material, while the seal essentially comprises an organic elastomer material. The component part and the seal are chemically bonded with one another. The seal is applied by injection molding onto the component part.Type: GrantFiled: July 14, 2005Date of Patent: August 3, 2010Assignee: Federal Mogul Sealing Systems Bretten GmbHInventors: Ralf Salameh, Timo Walz
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Publication number: 20100166965Abstract: The seal comprises a two-dimensional support, to which on one-side or both-sides an elastomer is applied by means of an injection molding process. The elastomer of the seal consists of at least one elastomer material. For the manufacture, a support is provided which is continuously fed to a pick apparatus, which cyclically applies on one or both sides an organic elastomer material as seal to the support. Subsequently, the seal is punched free.Type: ApplicationFiled: March 11, 2010Publication date: July 1, 2010Inventors: Ralf Salameh, Timo Walz
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Publication number: 20090277166Abstract: Exhaust gas check valve with a movable valve element held by a plurality of return springs, an exhaust gas through-opening closable by the valve element, and a stop element delimiting the stroke of the valve element; in order to improve the service life of the check valve, damping means are provided in the check valve for bringing about a comparatively gentle breaking of the valve element when at the end of its stroke it approaches that position in which the check valve is fully open, the damping means comprising spring elements holding the stop element, and/or a gas space which, when the check valve is open, is defined and at least almost closed by the valve element and the stop element.Type: ApplicationFiled: March 31, 2009Publication date: November 12, 2009Inventor: Timo Walz
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Patent number: 7574990Abstract: A method for reducing fuel permeation through gasketed joints in an internal combustion engine (10) includes surface treating the gaskets in a halogenated medium before placing them into service. A low-cost elastomer such as acrylic, EPDM or HNBR, can be used for the gasket body. The halogenated medium may comprise either a liquid bath or a gaseous bath, into which the gasket is immersed. The halogenated medium bath is excited by heating to accelerate the halogenation process. A gasket treated according to this invention possesses a chemically altered exterior surface which substantially enhances its fuel permeability resistance at relatively low cost.Type: GrantFiled: May 3, 2007Date of Patent: August 18, 2009Assignee: Federal-Mogul World Wide, Inc.Inventors: Richard E. Dewald, Ute Rueger, Kerry C. Smith, Timo Walz, Bhawani S. Tripathy
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Publication number: 20090065976Abstract: A lid component part of an internal combustion engine with integrated elastic seal, such as, for example, is provided to a cylinder head gasket or oil pan and a process for its manufacture. The component part exhibits a circumferential flange area for the arranging of the integrated seal. The component part is based on a plastic-material, while the seal essentially comprises an organic elastomer material. The component part and the seal are chemically bonded with one another. The seal is applied by injection molding onto the component part.Type: ApplicationFiled: November 18, 2008Publication date: March 12, 2009Inventors: Ralf SALAMEH, Timo WALZ
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Publication number: 20080272549Abstract: A method for reducing fuel permeation through gasketed joints in an internal combustion engine (10) includes surface treating the gaskets in a halogenated medium before placing them into service. A low-cost elastomer such as acrylic, EPDM or HNBR, can be used for the gasket body. The halogenated medium may comprise either a liquid bath or a gaseous bath, into which the gasket is immersed. The halogenated medium bath is excited by heating to accelerate the halogenation process. A gasket treated according to this invention possesses a chemically altered exterior surface which substantially enhances its fuel permeability resistance at relatively low cost.Type: ApplicationFiled: May 3, 2007Publication date: November 6, 2008Inventors: Richard E. Dewald, Ute Rueger, Kerry C. Smith, Timo Walz, Bhawani S. Tripathy
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Patent number: 7441525Abstract: A cover for a cylinder head of an internal combustion engine having a connecting element for attachment the cylinder head and a sealing element arranged between the cylinder head cover and the cylinder head. The connecting element is associated with a connecting area, and the sealing element is associated with a sealing area. The connecting area and the sealing area are constructed independently of each other and are spatially separated from each other, and the force vectors of the connecting force transmitted by the connecting element and the sealing force transmitted by the sealing element form an angle with each other.Type: GrantFiled: February 20, 2007Date of Patent: October 28, 2008Assignees: Mann & Hummel GmbH, Federal Mogul Sealing Systems Bretten GmbHInventors: Thomas Jessberger, Ines Klamert, Ingo Koch, Alexander Korn, Thomas Schleiden, Andreas Weber, Michael Daiber, Klaus Gessner, Timo Walz, Ralf Salameh, Wilhelm Schneider, Daniel Westphal
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Publication number: 20070234995Abstract: A cover for a cylinder head of an internal combustion engine having a connecting element for attachment the cylinder head and a sealing element arranged between the cylinder head cover and the cylinder head. The connecting element is associated with a connecting area, and the sealing element is associated with a sealing area. The connecting area and the sealing area are constructed independently of each other and are spatially separated from each other, and the force vectors of the connecting force transmitted by the connecting element and the sealing force transmitted by the sealing element form an angle with each other.Type: ApplicationFiled: February 20, 2007Publication date: October 11, 2007Applicants: Mann & Hummel GmbH, Federal Mogul Sealing Systems Bretten GmbHInventors: Thomas Jessberger, Ines Klamert, Ingo Koch, Alexander Korn, Thomas Schleiden, Andreas Weber, Michael Daiber, Klaus Gessner, Timo Walz, Ralf Salameh, Wilhelm Schneider, Daniel Westphal
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Publication number: 20060012077Abstract: The seal comprises a two-dimensional support, to which on one-side or both-sides an elastomer is applied by means of an injection molding process. The elastomer of the seal consists of at least one elastomer material. For the manufacture, a support is provided which is continuously fed to a pick apparatus, which cyclically applies on one or both sides an organic elastomer material as seal to the support. Subsequently, the seal is punched free.Type: ApplicationFiled: July 14, 2005Publication date: January 19, 2006Inventors: Ralf Salameh, Timo Walz
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Publication number: 20020063395Abstract: A cylinder head gasket includes a metal gasket plate; a lubricant aperture provided in the plate for serving as a passage for a lubricant; a lubricant aperture seal surrounding the lubricant aperture and being of a lubricant-resistant material; a coolant aperture provided in the plate for serving as a passage for a coolant; a coolant aperture seal surrounding the coolant aperture and being of a coolant-resistant material; and a single coupling agent coating provided on the plate. The coupling agent coating is of a material which bonds the lubricant aperture seal and the coolant aperture seal to the plate.Type: ApplicationFiled: November 26, 2001Publication date: May 30, 2002Inventors: Manfred Klinner, Timo Walz, Klaus Bendl, Ralf Salameh, Alain Retiere