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Wheel bearing gasket
PATENTS This patent covers a fibre sealing apparatus in which a seal about an outer fibre-optic cable may be formed relatively independently of a seal about an inner fibre-optic line. Applications to turbo-machinery are illustrated. Patent number: WO/2010/042405 Inventor: B.A.F. Read Publication date: 15 April 2010
Patent number: WO/2010/040042 Inventors: E. Lesnau, J.R. Zwick and M. Fracz Publication date: 8 April 2010
Coating for a sliding element in an internal combustion engine Applicant: Federal-Mogul Burscheid GmbH, Germany A sliding element in an internal combustion engine has a coating that has the following layers from the outside inwards: a first carbonbased layer; a second carbon-based layer that is harder and/or has a smaller proportion of hydrogen than the first carbon-based layer; a PVD layer; and a bonding layer. Patent number: WO/2010/040596 Inventors: M. Fischer and S. Hoppe Publication date: 15 April 2010
Honeycomb seal Applicant: Siemens Aktiengesellschaft, Germany The honeycomb cell, which forms the subject of this patent, is composed of one part with a substrate, so that brazing is not required. Furthermore, corrosion resistance is improved by applying to the substrate a coating comprising iron (Fe), chromium (Cr), aluminium (Al) and/or yttrium (Y) – applied especially by vapour deposition. The usual practice of welding or brazing thin sections of honeycomb into place is replaced by a process, such as electric discharge machining (EDM), in order to directly machine the honeycomb into the substrate material. Subsequently, the honeycomb can be coated with an abrasive-resistant or corrosionresistant material by chemical vapour deposition (CVD). Patent number: WO/2010/040599 Inventors: P.M. Walker and D. Fairbourn Publication date: 15 April 2010
Wheel bearing gasket Applicant: Schaeffler Technologies GmbH & Co Kg, Germany The goal is to implement a low-friction moment with an equivalent or improved sealing effect. To do so, the wheel flange (4a) together with a protective ring (1) forms a first gasket – the protective ring (1) surrounding the outer ring (2) of the wheel bearing arrangement. This approach is of particular interest for non-driven wheel bearing arrangements in which the side of the wheel bearing, facing the vehicle, can be well protected by a cover used on the vehicle side. Patent number: WO/2010/040650 14
Sealing Technology
Magnetic fluid seal
An additional cover (1) is used in conjunction with the hub flange to provide further protection to vehicle wheel bearings (patent WO/2010/040650).
Inventor: R. Langer Publication date: 15 April 2010
Deformable composite seal for bearing surfaces that lack flatness Applicants: Commissariat a L’energie Atomique et aux Energies Alternatives, France, and Garlock France Sas, France This seal consists of an outer envelope that may be made of polytetrafluoroethylene and an inner core made up of an air-permeable sack, partially filled with a granular fluid. When the flange surfaces are assembled, the sack is squashed and the upper volume of air escapes, while the grains transmit a substantial contact pressure between the lips of the envelope and the flange surfaces. They may have moved during the ‘squashing movement’ – so as to even out the pressure – by redistributing themselves in the sack, even if there is a significant lack of flatness between the surfaces. Patent number: WO/2010/040836 Inventors: L. Guimet, J.-F. Juliaa, M. Lefrancois and S. Parsy Publication date: 15 April 2010
Applicant: Rigaku Innovative Technologies Inc, USA A device for ensuring accurate alignment of a shaft in a magnetic-fluid seal is described. A compressible ring, located in a groove on the shaft, is used to partially fill the gap between the shaft and the rolling element bearing (and to make contact with the rolling element bearing). The compressible ring aligns and centres the shaft with the bearing. A liquid locking material is added to the gap and hardened to couple the shaft and compressible ring to the rolling element bearing. An alternative self-alignment mechanism is also disclosed. Patent number: WO/2010/042718 Inventors: D. Mahoney and W. Helgeland Publication date: 15 April 2010
Seal for a rotary piston machine Applicant: Mahle König Kommanditgesellschaft GmbH & Co Kg, Austria This invention relates to a seal for a rotary piston machine with a number of rotary wing pistons. The peripheral surfaces of the rotary wing pistons, and their flank surfaces, are provided with a sealing gap coating that is made of a structured, graphite-containing, high-stability sealant/lubricant compound. It is formed by a sealant/lubricant lattice of mutually intersecting elevated sealing webs, composed of the sealant/lubricant compound and applied to the surfaces of the pistons, having depressions or sinks disposed between the sealing webs. Patent number: WO/2010/042967 Inventors: M. Fasswald and K. Langner Publication date: 22 April 2010
Fibre-optic cable seal Applicants: Schlumberger Canada Ltd, Canada; Services Petroliers Schlumberger, France; Schlumberger Holdings Ltd, The Netherlands and UK; and Schlumberger Technology Bv, The Netherlands
Wind-turbine rolling bearing seal Applicant: Aktiebolaget SKF, Sweden This invention relates to seals for rolling bearings that are used in machinery or systems which operate in an aggressive outdoor
August 2010
Patent number: WO/2010/040042 Inventors: E. Lesnau, J.R. Zwick and M. Fracz Publication date: 8 April 2010
Coating for a sliding element in an internal combustion engine Applicant: Federal-Mogul Burscheid GmbH, Germany A sliding element in an internal combustion engine has a coating that has the following layers from the outside inwards: a first carbonbased layer; a second carbon-based layer that is harder and/or has a smaller proportion of hydrogen than the first carbon-based layer; a PVD layer; and a bonding layer. Patent number: WO/2010/040596 Inventors: M. Fischer and S. Hoppe Publication date: 15 April 2010
Honeycomb seal Applicant: Siemens Aktiengesellschaft, Germany The honeycomb cell, which forms the subject of this patent, is composed of one part with a substrate, so that brazing is not required. Furthermore, corrosion resistance is improved by applying to the substrate a coating comprising iron (Fe), chromium (Cr), aluminium (Al) and/or yttrium (Y) – applied especially by vapour deposition. The usual practice of welding or brazing thin sections of honeycomb into place is replaced by a process, such as electric discharge machining (EDM), in order to directly machine the honeycomb into the substrate material. Subsequently, the honeycomb can be coated with an abrasive-resistant or corrosionresistant material by chemical vapour deposition (CVD). Patent number: WO/2010/040599 Inventors: P.M. Walker and D. Fairbourn Publication date: 15 April 2010
Wheel bearing gasket Applicant: Schaeffler Technologies GmbH & Co Kg, Germany The goal is to implement a low-friction moment with an equivalent or improved sealing effect. To do so, the wheel flange (4a) together with a protective ring (1) forms a first gasket – the protective ring (1) surrounding the outer ring (2) of the wheel bearing arrangement. This approach is of particular interest for non-driven wheel bearing arrangements in which the side of the wheel bearing, facing the vehicle, can be well protected by a cover used on the vehicle side. Patent number: WO/2010/040650 14
Sealing Technology
Magnetic fluid seal
An additional cover (1) is used in conjunction with the hub flange to provide further protection to vehicle wheel bearings (patent WO/2010/040650).
Inventor: R. Langer Publication date: 15 April 2010
Deformable composite seal for bearing surfaces that lack flatness Applicants: Commissariat a L’energie Atomique et aux Energies Alternatives, France, and Garlock France Sas, France This seal consists of an outer envelope that may be made of polytetrafluoroethylene and an inner core made up of an air-permeable sack, partially filled with a granular fluid. When the flange surfaces are assembled, the sack is squashed and the upper volume of air escapes, while the grains transmit a substantial contact pressure between the lips of the envelope and the flange surfaces. They may have moved during the ‘squashing movement’ – so as to even out the pressure – by redistributing themselves in the sack, even if there is a significant lack of flatness between the surfaces. Patent number: WO/2010/040836 Inventors: L. Guimet, J.-F. Juliaa, M. Lefrancois and S. Parsy Publication date: 15 April 2010
Applicant: Rigaku Innovative Technologies Inc, USA A device for ensuring accurate alignment of a shaft in a magnetic-fluid seal is described. A compressible ring, located in a groove on the shaft, is used to partially fill the gap between the shaft and the rolling element bearing (and to make contact with the rolling element bearing). The compressible ring aligns and centres the shaft with the bearing. A liquid locking material is added to the gap and hardened to couple the shaft and compressible ring to the rolling element bearing. An alternative self-alignment mechanism is also disclosed. Patent number: WO/2010/042718 Inventors: D. Mahoney and W. Helgeland Publication date: 15 April 2010
Seal for a rotary piston machine Applicant: Mahle König Kommanditgesellschaft GmbH & Co Kg, Austria This invention relates to a seal for a rotary piston machine with a number of rotary wing pistons. The peripheral surfaces of the rotary wing pistons, and their flank surfaces, are provided with a sealing gap coating that is made of a structured, graphite-containing, high-stability sealant/lubricant compound. It is formed by a sealant/lubricant lattice of mutually intersecting elevated sealing webs, composed of the sealant/lubricant compound and applied to the surfaces of the pistons, having depressions or sinks disposed between the sealing webs. Patent number: WO/2010/042967 Inventors: M. Fasswald and K. Langner Publication date: 22 April 2010
Fibre-optic cable seal Applicants: Schlumberger Canada Ltd, Canada; Services Petroliers Schlumberger, France; Schlumberger Holdings Ltd, The Netherlands and UK; and Schlumberger Technology Bv, The Netherlands
Wind-turbine rolling bearing seal Applicant: Aktiebolaget SKF, Sweden This invention relates to seals for rolling bearings that are used in machinery or systems which operate in an aggressive outdoor
August 2010