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Sleeved sealing device
PATENTS to lubricated piston compressors, they are filled and use, for example, plastics and composite materials or a metal such as lead or tin bronze. The ring carrier (2) is made from metal – particularly steel, stainless steel, bronze or grey cast-iron, or a plastic, in particular PEEK or vi`Ê*/ ÊÀÊ>Ê
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Ìi«iÀ>ÌÕÀiÊ«ÞiÀÊ such as PEEK, PI or epoxy. Patent number: WO/2012/028661 Inventor:Ê °ÊiÃÌi Publication date:ÊnÊ >ÀV
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A seal designed for inter-stage sealing on a turbocompressor has been developed. According to this patent, it is positioned at the outside and inside diameter of the impeller and on the shaft. A labyrinth seal is illustrated that has a series of axial holes arranged around the circumference of the seal body. The purpose is to reduce the circumferential flow of the leak path. It is also said to reduce manufacturing costs. Patent number: WO/2012/033192 Inventor:Ê°Ê >>Ü> Publication date:Ê£xÊ >ÀV ÊÓä£Ó
Gasket for a compressor Applicant: Mitsubishi Heavy Industries Ltd, Japan This patent provides details of a gasket, which is used in an electric compressor that is provided with an inverter housing portion, with a flat, metallic core and a foamed elastic body, covering both surfaces of the core. A bead is created on the sealing surface by embossing the gasket. Sealing performance can be improved by sealing the inverter housing portion using this gasket. This gasket also helps to reduce vibration. Patent number: WO/2012/032967 Inventors: T. Hagita, S. Takahashi, /°ÊÀ>]Ê °ÊÀ>à and T. Watanabe Publication date:Ê£xÊ >ÀV ÊÓä£Ó
Sealing structure for an opticalfibre drawing furnace Applicant: Sumitomo Electric Industries Ltd, Japan This invention concerns a sealing structure for an optical-fibre drawing furnace. It is able to sufficiently seal a gap created between an upper-end opening of the drawing furnace and the glass preform using a simple structure – even when the outer diameter of the glass preform varies in size. A heat-resistant and flexible ring-shaped seal member is positioned so as to surround the outer peripheral surface of the optical-fibre glass preform. The seal member is formed from carbon felt or ceramic felt. External pressure appears to be supplied to the external surface of the seal ring. Patent number: WO/2012/033158 Inventors:Ê °Ê>Þ>>Ü>]Ê/°Ê>L>Ã>] T. Enomoto, T. Yamazaki and I. Okazaki Publication date:Ê£xÊ >ÀV ÊÓä£Ó
Inter-stage sealing on a turbo-compressor Applicants: Mitsubishi Heavy Industries Ltd and Mitsubishi Heavy Industries Compressor Corp – Japan
September 2012
are symmetrically disposed relative to the axis of the frame member. Transverse slits – each of which has a pair of longitudinal slits disposed at each of their ends – separate adjacent vertebrae. The spacing disposed adjacent to each end of a vertebra provides a convenient way of deflecting the vertebra relative to the axis of the frame member by inducing plastic deformation in segments and extensions of the axial shafts connecting coplanar vertebrae. Patent number: WO/2012/035531 Inventor: E. Peleg Publication date:ÊÓÓÊ >ÀV ÊÓä£Ó
Rotary piston machine seal Applicant: EN3 GmbH, Germany This invention relates to a seal for the piston used in a rotary piston machine that consists of two or more rotor segments. The seal comprises a circumferential segment that covers the rotor surface, and is retained by the sealing vanes and, in this way, seals the gap between the rotor segments. Specific applications mentioned include vane machine rotors and Wankel engine rotors. Patent number: WO/2012/035091 Inventors:Ê °ÊØÌ iÀÊ>`Ê °ÊØÌ iÀ Publication date:ÊÓÓÊ >ÀV ÊÓä£Ó
Sealing device and method Applicant: Alstom Technology Ltd, Switzerland This patent covers a sealing device that is designed to prevent unwanted fluid flow through an aperture through which a control rod passes. According to this patent, it can be used in a fabric filter system. The filter plenary space contains hot, chemically aggressive gases at a low pressure. If cold, ambient air leaks into this area the interior gas temperature falls, possibly causing the interior gas to condense. The device may need to allow for a degree of flexibility. The packing box used to seal the rod is mounted on a flexible structure such as a bellows, which ensures that the rod is free to move easily. Patent number: WO/2012/035389 Inventor:Ê° ° °ÊiLiÀ} Publication date:ÊÓÓÊ >ÀV ÊÓä£Ó
Sealed and bendable catheter Applicant: Vital View Ltd, Israel This invention relates, in general, to bendable catheters. The patent describes a tubular frame member with an articulated segment which enables the catheter to bend easily. An enclosing sheath and an optical window, or lens, provide a means of sealing the lumen of the catheter. The segment contains vertebrae that
Sealing agent with low softening Applicant: Daunia Solar Cell Srl, Italy This invention concerns a composition for a sealing agent. It is generally in the form of glass frit, is lead-free and is composed, by weight (over the total weight of the composition), of 30–80% Bi2O3; 2–10% ZnO; 2–10% B2O3; äqx¯Ê >2O; 1–10% SiO2; 1–8% Al2O3; äqÇ¯Ê >"ÆÊ>`Êäqn¯Ê }"°Ê/ iÊ«>ÌiÌÊ>ÃÊ describes a sealing paste containing the composition, a possible filler, an organic binder and, «Ì>Þ]Ê>ÊÀ}>VÊÃÛiÌ°Ê iÌ `ÃÊvÀÊ«Àducing the composition and the sealing paste are discussed. Patent number: WO/2012/035565 Inventor: A. Antonini Publication date:ÊÓÓÊ >ÀV ÊÓä£Ó
Sleeved sealing device Applicant: SNECMA, France This invention relates to a sealing device that uses a sleeve to contain a connecting rod, through a partition, for a system that controls the orientation of the blower blades in a turboprop engine. The device includes a tube that is attached to the partition to be sealed, and a frusto-conical sleeve through which the connecting rod passes. The sleeve is capable of sliding axially inside the tube. At its larger end the sleeve provides a seal with the tube and, at its narrow end, a sealed-attachment at the corresponding end of the connecting rod. The way in which the sealing action is achieved is not obvious from the information available. Publication number: WO/2012/038638 Inventor:Ê°Ê>iÌ Publication date:ÊÓÊ >ÀV ÊÓä£Ó
Capacitor seal Applicant: Panasonic Corp, Japan This patent provides details of a seal for a capacitor that contains an electrolyte solution.
Sealing Technology
13
A seal designed for inter-stage sealing on a turbocompressor has been developed. According to this patent, it is positioned at the outside and inside diameter of the impeller and on the shaft. A labyrinth seal is illustrated that has a series of axial holes arranged around the circumference of the seal body. The purpose is to reduce the circumferential flow of the leak path. It is also said to reduce manufacturing costs. Patent number: WO/2012/033192 Inventor:Ê°Ê >>Ü> Publication date:Ê£xÊ >ÀV ÊÓä£Ó
Gasket for a compressor Applicant: Mitsubishi Heavy Industries Ltd, Japan This patent provides details of a gasket, which is used in an electric compressor that is provided with an inverter housing portion, with a flat, metallic core and a foamed elastic body, covering both surfaces of the core. A bead is created on the sealing surface by embossing the gasket. Sealing performance can be improved by sealing the inverter housing portion using this gasket. This gasket also helps to reduce vibration. Patent number: WO/2012/032967 Inventors: T. Hagita, S. Takahashi, /°ÊÀ>]Ê °ÊÀ>à and T. Watanabe Publication date:Ê£xÊ >ÀV ÊÓä£Ó
Sealing structure for an opticalfibre drawing furnace Applicant: Sumitomo Electric Industries Ltd, Japan This invention concerns a sealing structure for an optical-fibre drawing furnace. It is able to sufficiently seal a gap created between an upper-end opening of the drawing furnace and the glass preform using a simple structure – even when the outer diameter of the glass preform varies in size. A heat-resistant and flexible ring-shaped seal member is positioned so as to surround the outer peripheral surface of the optical-fibre glass preform. The seal member is formed from carbon felt or ceramic felt. External pressure appears to be supplied to the external surface of the seal ring. Patent number: WO/2012/033158 Inventors:Ê °Ê>Þ>>Ü>]Ê/°Ê>L>Ã>] T. Enomoto, T. Yamazaki and I. Okazaki Publication date:Ê£xÊ >ÀV ÊÓä£Ó
Inter-stage sealing on a turbo-compressor Applicants: Mitsubishi Heavy Industries Ltd and Mitsubishi Heavy Industries Compressor Corp – Japan
September 2012
are symmetrically disposed relative to the axis of the frame member. Transverse slits – each of which has a pair of longitudinal slits disposed at each of their ends – separate adjacent vertebrae. The spacing disposed adjacent to each end of a vertebra provides a convenient way of deflecting the vertebra relative to the axis of the frame member by inducing plastic deformation in segments and extensions of the axial shafts connecting coplanar vertebrae. Patent number: WO/2012/035531 Inventor: E. Peleg Publication date:ÊÓÓÊ >ÀV ÊÓä£Ó
Rotary piston machine seal Applicant: EN3 GmbH, Germany This invention relates to a seal for the piston used in a rotary piston machine that consists of two or more rotor segments. The seal comprises a circumferential segment that covers the rotor surface, and is retained by the sealing vanes and, in this way, seals the gap between the rotor segments. Specific applications mentioned include vane machine rotors and Wankel engine rotors. Patent number: WO/2012/035091 Inventors:Ê °ÊØÌ iÀÊ>`Ê °ÊØÌ iÀ Publication date:ÊÓÓÊ >ÀV ÊÓä£Ó
Sealing device and method Applicant: Alstom Technology Ltd, Switzerland This patent covers a sealing device that is designed to prevent unwanted fluid flow through an aperture through which a control rod passes. According to this patent, it can be used in a fabric filter system. The filter plenary space contains hot, chemically aggressive gases at a low pressure. If cold, ambient air leaks into this area the interior gas temperature falls, possibly causing the interior gas to condense. The device may need to allow for a degree of flexibility. The packing box used to seal the rod is mounted on a flexible structure such as a bellows, which ensures that the rod is free to move easily. Patent number: WO/2012/035389 Inventor:Ê° ° °ÊiLiÀ} Publication date:ÊÓÓÊ >ÀV ÊÓä£Ó
Sealed and bendable catheter Applicant: Vital View Ltd, Israel This invention relates, in general, to bendable catheters. The patent describes a tubular frame member with an articulated segment which enables the catheter to bend easily. An enclosing sheath and an optical window, or lens, provide a means of sealing the lumen of the catheter. The segment contains vertebrae that
Sealing agent with low softening Applicant: Daunia Solar Cell Srl, Italy This invention concerns a composition for a sealing agent. It is generally in the form of glass frit, is lead-free and is composed, by weight (over the total weight of the composition), of 30–80% Bi2O3; 2–10% ZnO; 2–10% B2O3; äqx¯Ê >2O; 1–10% SiO2; 1–8% Al2O3; äqÇ¯Ê >"ÆÊ>`Êäqn¯Ê }"°Ê/ iÊ«>ÌiÌÊ>ÃÊ describes a sealing paste containing the composition, a possible filler, an organic binder and, «Ì>Þ]Ê>ÊÀ}>VÊÃÛiÌ°Ê iÌ `ÃÊvÀÊ«Àducing the composition and the sealing paste are discussed. Patent number: WO/2012/035565 Inventor: A. Antonini Publication date:ÊÓÓÊ >ÀV ÊÓä£Ó
Sleeved sealing device Applicant: SNECMA, France This invention relates to a sealing device that uses a sleeve to contain a connecting rod, through a partition, for a system that controls the orientation of the blower blades in a turboprop engine. The device includes a tube that is attached to the partition to be sealed, and a frusto-conical sleeve through which the connecting rod passes. The sleeve is capable of sliding axially inside the tube. At its larger end the sleeve provides a seal with the tube and, at its narrow end, a sealed-attachment at the corresponding end of the connecting rod. The way in which the sealing action is achieved is not obvious from the information available. Publication number: WO/2012/038638 Inventor:Ê°Ê>iÌ Publication date:ÊÓÊ >ÀV ÊÓä£Ó
Capacitor seal Applicant: Panasonic Corp, Japan This patent provides details of a seal for a capacitor that contains an electrolyte solution.
Sealing Technology
13