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Test-bench for a dynamic sealing system
PATENTS Non-threaded tubular connection
A method for manufacturing a piston for a reciprocating engine is detailed by patent WO/2014/053211.
Test-bench for a dynamic sealing system Applicant: Turbomeca, France This invention concerns a test-bench for a sealing system, which uses a machining apparatus – particularly one that operates at a high speed. At least one test-piece, forming a housing, is mounted on the workpiece support, whilst a labyrinth or other seal test-piece is mounted on the tool-holder part, which makes it possible to control the rotation and the movement of the labyrinth test-piece in the housing test-piece. Patent number: WO/2014/053729 Inventors: J. Gurt Santanach, F. Crabos, S. Vaillant, P.-E. Jactat and G. Dessein Publication date: 10 April 2014
Threaded full-ring inner air-seal Applicant: United Technologies Corp, USA The design detailed by this patent aims to create a sealing structure for a gas turbine engine that simplifies assembly whilst containing hot gas flow and defining desired cooling airflow passages. A disclosed vane assembly includes a section formed from a plurality of fixed vanes, spaced circumferentially. These vanes extend radially outwards from an inner platform and hook into the case. The inner platform includes a mount rail that extends radially inwards. An air-seal is attached to the inner platform of the vane section and includes a ring extending circumferentially about the axis. The disclosed seal includes a plurality of tabs that receive lugs disposed on the mount rail. A ring nut is secured to the airseal and engages with the mount rail in order to secure the vane section to the air-seal. Patent number: WO/2014/058505 Inventors: B.F. Hagan and J.T. Caprario Publication date: 17 April 2014 14
Sealing Technology
Applicants: Schlumberger Canada Ltd, Canada; Services Petroliers Schlumberger, France; Schlumberger Holdings Ltd, UK; Schlumberger Technology Bv, The Netherlands; Prad Research and Development Ltd, UK; and Schlumberger Technology Corp, USA The technique described by this patent facilitates connection of tubulars along a tubing string via linear motion. A first tubular is provided with a first connector end that has a non-circular transverse cross-section, and a second tubular is provided with a second connector end that has a corresponding noncircular transverse cross-section. These noncircular cross-sections are designed to mate with each other when the first and second tubulars are moved linearly towards each other, to form a tubing string. A seal is provided to seal the first connector end with the second connector end once these are linearly engaged. A locking mechanism also may be employed to linearly lock the first and second connector ends. Patent number: WO/2014/059086 Inventors: J.C. Wolf, L.A. Gonzalez and A.B. Huang Publication date: 17 April 2014
Lubricant compositions comprising boroxines to improve fluoropolymer seal compatibility Applicant: BASF Se, Germany/USA A lubricant composition, including a boroxine compound, forms the subject of this patent. It provides details of the composition and additive package, including the boroxine compound and a sterically hindered amine compound. The boroxine compound acts to improve compatibility of the lubricant composition with fluoropolymer seals. Patent number: WO/2014/059277 Inventors: K.J. Desantis, M.D. Hoey, A. Attlesey, R.L. Kuhlman, D. Chasan and P. Rabbat Publication date: 17 April 2014
Composite seal Applicant: Nippon Valqua Industries Ltd, Japan The composite seal (100) that forms the subject of this patent is targeted at the semiconductor manufacturing industry. It is provided with a metal member (120), disposed on a first device (11) side, and an elastic member (110) that is disposed on a second device (21)
The composite seal detailed by patent WO/2014/057803 has been developed for use in semiconductor manufacturing processes. The aim is to create a structure that is capable of limiting deterioration even when it is exposed to ultraviolet light.
side and is capable of elastic deformation. According to the inventor, this design creates a composite seal with a structure that is capable of limiting deterioration even when exposed to ultraviolet light. Patent number: WO/2014/057803 Inventor: I. Nakagawa Publication date: 17 April 2014
Multilayer temperature-responsive pressure isolation device Applicant: Halliburton Energy Services Inc, USA The sealing element described comprises two distinct materials that possess different melting points. One of the materials, for an outer shell, has a higher melting point than the other – an inner core material. The core material can be a metal, plastic or polymer with a relatively low melting point. The seal is positioned in the wellbore and, in response to heating to a specific temperature, such as a bottom-hole static temperature, the core material melts. When the inner material softens, the outer shell’s elastic modulus decreases, causing longitudinal compression and radial expansion of the sealing element. The inner material can also thermally expand and thereby assist or cause radial expansion of the outer shell. The sealing element provides a metal-to-metal seal with a casing or tubing. The cross-section of the outer shell can assume various shapes in order to promote controlled compression, expansion and sealing.
January 2015
A method for manufacturing a piston for a reciprocating engine is detailed by patent WO/2014/053211.
Test-bench for a dynamic sealing system Applicant: Turbomeca, France This invention concerns a test-bench for a sealing system, which uses a machining apparatus – particularly one that operates at a high speed. At least one test-piece, forming a housing, is mounted on the workpiece support, whilst a labyrinth or other seal test-piece is mounted on the tool-holder part, which makes it possible to control the rotation and the movement of the labyrinth test-piece in the housing test-piece. Patent number: WO/2014/053729 Inventors: J. Gurt Santanach, F. Crabos, S. Vaillant, P.-E. Jactat and G. Dessein Publication date: 10 April 2014
Threaded full-ring inner air-seal Applicant: United Technologies Corp, USA The design detailed by this patent aims to create a sealing structure for a gas turbine engine that simplifies assembly whilst containing hot gas flow and defining desired cooling airflow passages. A disclosed vane assembly includes a section formed from a plurality of fixed vanes, spaced circumferentially. These vanes extend radially outwards from an inner platform and hook into the case. The inner platform includes a mount rail that extends radially inwards. An air-seal is attached to the inner platform of the vane section and includes a ring extending circumferentially about the axis. The disclosed seal includes a plurality of tabs that receive lugs disposed on the mount rail. A ring nut is secured to the airseal and engages with the mount rail in order to secure the vane section to the air-seal. Patent number: WO/2014/058505 Inventors: B.F. Hagan and J.T. Caprario Publication date: 17 April 2014 14
Sealing Technology
Applicants: Schlumberger Canada Ltd, Canada; Services Petroliers Schlumberger, France; Schlumberger Holdings Ltd, UK; Schlumberger Technology Bv, The Netherlands; Prad Research and Development Ltd, UK; and Schlumberger Technology Corp, USA The technique described by this patent facilitates connection of tubulars along a tubing string via linear motion. A first tubular is provided with a first connector end that has a non-circular transverse cross-section, and a second tubular is provided with a second connector end that has a corresponding noncircular transverse cross-section. These noncircular cross-sections are designed to mate with each other when the first and second tubulars are moved linearly towards each other, to form a tubing string. A seal is provided to seal the first connector end with the second connector end once these are linearly engaged. A locking mechanism also may be employed to linearly lock the first and second connector ends. Patent number: WO/2014/059086 Inventors: J.C. Wolf, L.A. Gonzalez and A.B. Huang Publication date: 17 April 2014
Lubricant compositions comprising boroxines to improve fluoropolymer seal compatibility Applicant: BASF Se, Germany/USA A lubricant composition, including a boroxine compound, forms the subject of this patent. It provides details of the composition and additive package, including the boroxine compound and a sterically hindered amine compound. The boroxine compound acts to improve compatibility of the lubricant composition with fluoropolymer seals. Patent number: WO/2014/059277 Inventors: K.J. Desantis, M.D. Hoey, A. Attlesey, R.L. Kuhlman, D. Chasan and P. Rabbat Publication date: 17 April 2014
Composite seal Applicant: Nippon Valqua Industries Ltd, Japan The composite seal (100) that forms the subject of this patent is targeted at the semiconductor manufacturing industry. It is provided with a metal member (120), disposed on a first device (11) side, and an elastic member (110) that is disposed on a second device (21)
The composite seal detailed by patent WO/2014/057803 has been developed for use in semiconductor manufacturing processes. The aim is to create a structure that is capable of limiting deterioration even when it is exposed to ultraviolet light.
side and is capable of elastic deformation. According to the inventor, this design creates a composite seal with a structure that is capable of limiting deterioration even when exposed to ultraviolet light. Patent number: WO/2014/057803 Inventor: I. Nakagawa Publication date: 17 April 2014
Multilayer temperature-responsive pressure isolation device Applicant: Halliburton Energy Services Inc, USA The sealing element described comprises two distinct materials that possess different melting points. One of the materials, for an outer shell, has a higher melting point than the other – an inner core material. The core material can be a metal, plastic or polymer with a relatively low melting point. The seal is positioned in the wellbore and, in response to heating to a specific temperature, such as a bottom-hole static temperature, the core material melts. When the inner material softens, the outer shell’s elastic modulus decreases, causing longitudinal compression and radial expansion of the sealing element. The inner material can also thermally expand and thereby assist or cause radial expansion of the outer shell. The sealing element provides a metal-to-metal seal with a casing or tubing. The cross-section of the outer shell can assume various shapes in order to promote controlled compression, expansion and sealing.
January 2015