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1 High efficiency piston ring
PATENTS
Patents 1 High efficiency piston ring Applicant/Inventor: G.V.K. Meacham, USA This patent describes a piston ring that is claimed to provide reduced friction and wear. The design allows independent adjustment of the parameters controlling friction and wear to eliminate the trade off between low friction and low wear typical of prior art rings. The contact interface area between the ring and the bore surface is divided into a seal zone and bearing zones. Radial ports in the ring create the separate zones and ensure that the bearing zone is not subjected to pressure differential. Publication number: WO/2009/033115 Publication date: 12 March 2009
Process for producing a seal, seal and the use thereof Applicant: Weber GmbH & CO.KG Kunststofftechnik + Formenbau, Germany The invention relates to a process for producing a seal in which a mouldable, vulcanizable material is given a prescribed shape and is vulcanized only in the surface region of the moulded material. The applications specified for the seal are heating boilers and cylinder heads. Publication number: WO/2009/033609 Inventor: R. Eckert Publication date: 19 March 2009
Installation structure for lip type seal Applicant: Eagle Industry Co. Ltd. Japan A cartridge assembly is discussed that is designed to permit a lip seal of an established size be used in housings of different bore sizes. A stepped
cartridge adaptor converts the seal OD to the required dimensions for the housing. Static sealing surfaces may be included on the adaptor. Publication number: WO/2009/034871 Inventors: T. Shimomura et al. Publication date: 19 March 2009
Cylinder head gasket Applicant: Nippon Gasket Co. Ltd. Japan A cylinder head gasket designed to prevent combustion gas attempting to leak between each of the seal plates. The seal plates are continuously secured to each other around the circumference of the combustion chamber hole. Publication number: WO/2009/034879 Inventors: S. Mori et al. Publication date: 19 March 2009
Expandable metal-to-metal seal Applicant: Baker Hughes Inc. USA A metal packer seal that is designed to be easier to recover than previous metal to metal seal designs. The seal is configured to form a teardrop shaped seal member when axially compressed to set the packer. If it is required to release the seal this can be achieved by axially extended the setting mechanism to flatten the seal profile. Publication number: WO/2009/035826 Inventors: S. Gaudette et al. Publication date: 19 March 2009
Multi-elastomer seal Applicant: Cameron International Corporation, USA A range of potential elastomer seal arrangements for down-hole applications are discussed. The feature of the patent is that the seals may be manufactured from more than one elastomer type, with selected materials arranged to pro-
The retrievable metal packer seal shown in the set position, top, and then expanded axially for retrieval, below , WO/2009/035826.
vide specific attributes where required such as wear, extrusion or fluid resistance compared with potentially a softer more resilient seal core. Publication number: WO/2009/035947 Inventor: C. Kocurek Publication date: 19 March 2009
Metallic cylinder head gasket Applicant: Federal-Mogul Corporation, USA The metal head gasket is designed with a cutout region between the carrier layer and the active layer where they are in the same plane. The cut-out region allows the active layer to move out of the plane of the carrier layer which can allow the active layer to self-adjust for sealing engagement between opposing surfaces in assembly and during use. Publication number: WO/2009/036159 Inventor: J. Schmitz Publication date: 19 March 2009
Metallic cylinder head gasket
The seal which is only vulcanised on the surface appears to be applied to applications where it will be highly deformed on assembly, WO/2009/033609.
12
Sealing Technology
Applicant: Federal-Mogul Corporation, USA A cylinder head gasket that is designed to overcome problems created by the varying degrees in which cylinder liners extend above a face surface of the engine block, and any out of square of the liner face. The carrier layer and the active layer are spaced from one another by at least one cut-out region. This allows the active layer to move out of the plane of the carrier layer and self-adjust for engagement of the sealing bead around the bores. Publication number: WO/2009/036159 Inventor: J. Schmitz Publication date: 19 March 2009
July 2009
Patents 1 High efficiency piston ring Applicant/Inventor: G.V.K. Meacham, USA This patent describes a piston ring that is claimed to provide reduced friction and wear. The design allows independent adjustment of the parameters controlling friction and wear to eliminate the trade off between low friction and low wear typical of prior art rings. The contact interface area between the ring and the bore surface is divided into a seal zone and bearing zones. Radial ports in the ring create the separate zones and ensure that the bearing zone is not subjected to pressure differential. Publication number: WO/2009/033115 Publication date: 12 March 2009
Process for producing a seal, seal and the use thereof Applicant: Weber GmbH & CO.KG Kunststofftechnik + Formenbau, Germany The invention relates to a process for producing a seal in which a mouldable, vulcanizable material is given a prescribed shape and is vulcanized only in the surface region of the moulded material. The applications specified for the seal are heating boilers and cylinder heads. Publication number: WO/2009/033609 Inventor: R. Eckert Publication date: 19 March 2009
Installation structure for lip type seal Applicant: Eagle Industry Co. Ltd. Japan A cartridge assembly is discussed that is designed to permit a lip seal of an established size be used in housings of different bore sizes. A stepped
cartridge adaptor converts the seal OD to the required dimensions for the housing. Static sealing surfaces may be included on the adaptor. Publication number: WO/2009/034871 Inventors: T. Shimomura et al. Publication date: 19 March 2009
Cylinder head gasket Applicant: Nippon Gasket Co. Ltd. Japan A cylinder head gasket designed to prevent combustion gas attempting to leak between each of the seal plates. The seal plates are continuously secured to each other around the circumference of the combustion chamber hole. Publication number: WO/2009/034879 Inventors: S. Mori et al. Publication date: 19 March 2009
Expandable metal-to-metal seal Applicant: Baker Hughes Inc. USA A metal packer seal that is designed to be easier to recover than previous metal to metal seal designs. The seal is configured to form a teardrop shaped seal member when axially compressed to set the packer. If it is required to release the seal this can be achieved by axially extended the setting mechanism to flatten the seal profile. Publication number: WO/2009/035826 Inventors: S. Gaudette et al. Publication date: 19 March 2009
Multi-elastomer seal Applicant: Cameron International Corporation, USA A range of potential elastomer seal arrangements for down-hole applications are discussed. The feature of the patent is that the seals may be manufactured from more than one elastomer type, with selected materials arranged to pro-
The retrievable metal packer seal shown in the set position, top, and then expanded axially for retrieval, below , WO/2009/035826.
vide specific attributes where required such as wear, extrusion or fluid resistance compared with potentially a softer more resilient seal core. Publication number: WO/2009/035947 Inventor: C. Kocurek Publication date: 19 March 2009
Metallic cylinder head gasket Applicant: Federal-Mogul Corporation, USA The metal head gasket is designed with a cutout region between the carrier layer and the active layer where they are in the same plane. The cut-out region allows the active layer to move out of the plane of the carrier layer which can allow the active layer to self-adjust for sealing engagement between opposing surfaces in assembly and during use. Publication number: WO/2009/036159 Inventor: J. Schmitz Publication date: 19 March 2009
Metallic cylinder head gasket
The seal which is only vulcanised on the surface appears to be applied to applications where it will be highly deformed on assembly, WO/2009/033609.
12
Sealing Technology
Applicant: Federal-Mogul Corporation, USA A cylinder head gasket that is designed to overcome problems created by the varying degrees in which cylinder liners extend above a face surface of the engine block, and any out of square of the liner face. The carrier layer and the active layer are spaced from one another by at least one cut-out region. This allows the active layer to move out of the plane of the carrier layer and self-adjust for engagement of the sealing bead around the bores. Publication number: WO/2009/036159 Inventor: J. Schmitz Publication date: 19 March 2009
July 2009