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1. WO2017202592 - A DOUBLE MECHANICAL SEAL, A STATIONARY SLIDE RING THEREOF AND A PUMP HOUSING IN A CENTRIFUGAL PUMP

Publication Number WO/2017/202592
Publication Date 30.11.2017
International Application No. PCT/EP2017/060922
International Filing Date 08.05.2017
Chapter 2 Demand Filed 27.11.2017
IPC
F16J 15/34 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15Sealings
16between relatively-moving surfaces
34with slip-ring pressed against a more or less radial face on one member
CPC
F04D 29/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
29Details, component parts, or accessories
08Sealings
F16J 15/34
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS
15Sealings
16between relatively-moving surfaces
34with slip-ring pressed against a more or less radial face on one member
F16J 15/3404
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS
15Sealings
16between relatively-moving surfaces
34with slip-ring pressed against a more or less radial face on one member
3404and characterised by parts or details relating to lubrication, cooling or venting of the seal
F16J 15/3484
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS
15Sealings
16between relatively-moving surfaces
34with slip-ring pressed against a more or less radial face on one member
3464Mounting of the seal
348Pre-assembled seals, e.g. cartridge seals
3484Tandem seals
Applicants
  • SULZER MANAGEMENT AG [CH]/[CH]
Inventors
  • VAINIKAINEN, Jukka
Agents
  • IRSCH, Manfred
Priority Data
16171407.625.05.2016EP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) A DOUBLE MECHANICAL SEAL, A STATIONARY SLIDE RING THEREOF AND A PUMP HOUSING IN A CENTRIFUGAL PUMP
(FR) JOINT MÉCANIQUE DOUBLE, ANNEAU COULISSANT FIXE DE CELUI-CI ET BOÎTIER DE POMPE DANS UNE POMPE CENTRIFUGE
Abstract
(EN)
The present invention relates to a new kind of a double mechanical seal used, for example, for sealing a shaft of a centrifugal pump. The present invention is especially aimed at solving problems relating to the circulation of the barrier fluid, i.e. liquid used for lubricating the sealing surfaces.
(FR)
La présente invention concerne un nouveau type de joint mécanique double utilisé, par exemple, pour rendre étanche un arbre d'une pompe centrifuge. La présente invention vise notamment à résoudre les problèmes liés à la circulation du fluide barrière, c'est-à-dire le liquide utilisé pour lubrifier les surfaces d'étanchéité.
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