- Email: [email protected]
Seal element in the form of a hollow profile
PATENTS *ÕLV>ÌÊÕLiÀ\ WO/2009/094166 ÛiÌÀÃ\ A.E. Mann, B.L. Moran, A.D. Janis and P. Kaluzniak *ÕLV>ÌÊ`>Ìi\ 30 July 2009
Flat seal Applicant: Federal-Mogul Sealing Systems GmbH, Germany A metallic gasket for the exhaust gas area of an internal combustion engine is described. A high grade, high-temperature alloy is used for the beaded sealing area of the gasket. This is crimped into a holder of lower grade steel sheet. *ÕLV>ÌÊÕLiÀ\ WO/2009/094964 ÛiÌÀ\ R. Prehn *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Cylinder head flat seal Applicant: Federal-Mogul Sealing Systems GmbH, Germany This patent follows a similar philosophy to WO/2009/094964. This specifically mentions the use of the technique in cylinder head gaskets and the requirement to provide reliable sealing while reducing costs. *ÕLV>ÌÊÕLiÀ\ WO/2009/094965 ÛiÌÀ\ R. Prehn *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Brush seal Applicant: MTU Aero Engines GmbH, Germany
This invention relates to a brush seal in which the bristle assembly fits into a clip-like sealing housing (18). The housing has a non-symmetrical design, such that on one side the bristles are supported by an extended leg of the housing (32). The opposite side of the bristle pack is supported by the machine structure (28). *ÕLV>ÌÊÕLiÀ\ WO/2009/094982 ÛiÌÀ\ S. Beichl *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Brush seal assembly Applicant: MTU Aero Engines GmbH, Germany A brush seal assembly is detailed in which the housing is designed with protuberances part way along the length of the bristles. These appear to provide alignment and support to the bristles. *ÕLV>ÌÊÕLiÀ\ WO/2009/094984 ÛiÌÀ\ S. Beichl *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Seal element in the form of a hollow profile Applicants: BSH Bosch und Siemens Hausgeräte GmbH, Germany, and Miele & Cie Kg, Germany The subject of this patent is a hollow seal for applications such as refrigerator doors. The seal has a rigid base and a hollow elastic sealing section. The patent specifically describes the
connectors used to connect together sections of the seal. A spade and socket – similar in overall appearance to electrical spade connections – is used. *ÕLV>ÌÊÕLiÀ\ WO/2009/095329 ÛiÌÀ\ P. Eckartsberg *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Brush seal with piston ring for large sealing gaps Applicant: Siemens Aktiengesellschaft, Germany This invention is designed to create a seal between the combustion chamber and flame tube of a gas turbine, where there is a relatively large radial gap and also considerable relative movement. A brush seal is fitted to the inside diameter of a piston ring. Hence, the piston ring can move radially in the groove to absorb relative movement. A spring retainer may be used to retain the piston ring against the radial wall of the groove. *ÕLV>ÌÊÕLiÀ\ WO/2009/095402 ÛiÌÀÃ\ J. Pross and S. Tschirren *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Seal for knuckle couplings Applicant: Airbus España Sl, Spain A seal is described that is intended to protect flexible joints – such as knuckle couplings used in hydraulic and lubricant lines on aircraft – by absorbing relative movement. It is composed of a brush seal as an excluder that may be manufactured from natural or synthetic yarns. Nylon is mentioned in the patent. *ÕLV>ÌÊÕLiÀ\ WO/2009/095511 ÛiÌÀ\ I.G. Zamora *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Roll neck seal
A brush seal design in which the bristle pack is retained in a clip-like housing (WO/2009/094982).
November 2009
Applicant: SOS Srl, Italy This patent describes a seal typical of that used for sealing the roll neck of rolling mills, but described, in the translation, as laminating cylinders. It provides for a replaceable sealing section within the overall moulding. The sealing lips and body of the seal can be made of different elastomers to provide the optimum materials, for example, for heat resistance at the sealing lips. The lips may also have a layer of PTFE for reduced friction and wear resistance. Considerable detail of the manufacturing and moulding methods is included. *ÕLV>ÌÊÕLiÀ\ WO/2009/095769 ÛiÌÀ\ M.R. Fumagalli *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Sealing Technology
15
Flat seal Applicant: Federal-Mogul Sealing Systems GmbH, Germany A metallic gasket for the exhaust gas area of an internal combustion engine is described. A high grade, high-temperature alloy is used for the beaded sealing area of the gasket. This is crimped into a holder of lower grade steel sheet. *ÕLV>ÌÊÕLiÀ\ WO/2009/094964 ÛiÌÀ\ R. Prehn *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Cylinder head flat seal Applicant: Federal-Mogul Sealing Systems GmbH, Germany This patent follows a similar philosophy to WO/2009/094964. This specifically mentions the use of the technique in cylinder head gaskets and the requirement to provide reliable sealing while reducing costs. *ÕLV>ÌÊÕLiÀ\ WO/2009/094965 ÛiÌÀ\ R. Prehn *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Brush seal Applicant: MTU Aero Engines GmbH, Germany
This invention relates to a brush seal in which the bristle assembly fits into a clip-like sealing housing (18). The housing has a non-symmetrical design, such that on one side the bristles are supported by an extended leg of the housing (32). The opposite side of the bristle pack is supported by the machine structure (28). *ÕLV>ÌÊÕLiÀ\ WO/2009/094982 ÛiÌÀ\ S. Beichl *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Brush seal assembly Applicant: MTU Aero Engines GmbH, Germany A brush seal assembly is detailed in which the housing is designed with protuberances part way along the length of the bristles. These appear to provide alignment and support to the bristles. *ÕLV>ÌÊÕLiÀ\ WO/2009/094984 ÛiÌÀ\ S. Beichl *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Seal element in the form of a hollow profile Applicants: BSH Bosch und Siemens Hausgeräte GmbH, Germany, and Miele & Cie Kg, Germany The subject of this patent is a hollow seal for applications such as refrigerator doors. The seal has a rigid base and a hollow elastic sealing section. The patent specifically describes the
connectors used to connect together sections of the seal. A spade and socket – similar in overall appearance to electrical spade connections – is used. *ÕLV>ÌÊÕLiÀ\ WO/2009/095329 ÛiÌÀ\ P. Eckartsberg *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Brush seal with piston ring for large sealing gaps Applicant: Siemens Aktiengesellschaft, Germany This invention is designed to create a seal between the combustion chamber and flame tube of a gas turbine, where there is a relatively large radial gap and also considerable relative movement. A brush seal is fitted to the inside diameter of a piston ring. Hence, the piston ring can move radially in the groove to absorb relative movement. A spring retainer may be used to retain the piston ring against the radial wall of the groove. *ÕLV>ÌÊÕLiÀ\ WO/2009/095402 ÛiÌÀÃ\ J. Pross and S. Tschirren *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Seal for knuckle couplings Applicant: Airbus España Sl, Spain A seal is described that is intended to protect flexible joints – such as knuckle couplings used in hydraulic and lubricant lines on aircraft – by absorbing relative movement. It is composed of a brush seal as an excluder that may be manufactured from natural or synthetic yarns. Nylon is mentioned in the patent. *ÕLV>ÌÊÕLiÀ\ WO/2009/095511 ÛiÌÀ\ I.G. Zamora *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Roll neck seal
A brush seal design in which the bristle pack is retained in a clip-like housing (WO/2009/094982).
November 2009
Applicant: SOS Srl, Italy This patent describes a seal typical of that used for sealing the roll neck of rolling mills, but described, in the translation, as laminating cylinders. It provides for a replaceable sealing section within the overall moulding. The sealing lips and body of the seal can be made of different elastomers to provide the optimum materials, for example, for heat resistance at the sealing lips. The lips may also have a layer of PTFE for reduced friction and wear resistance. Considerable detail of the manufacturing and moulding methods is included. *ÕLV>ÌÊÕLiÀ\ WO/2009/095769 ÛiÌÀ\ M.R. Fumagalli *ÕLV>ÌÊ`>Ìi\ 6 August 2009
Sealing Technology
15