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1. WO2020117258 - TURBOMACHINE WITH SEAL

Publication Number WO/2020/117258
Publication Date 11.06.2020
International Application No. PCT/US2018/064381
International Filing Date 07.12.2018
IPC
F04D 29/16 2006.01
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
16between pressure and suction sides
F04D 13/08 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
13Pumping installations or systems
02Units comprising pumps and their driving means
06the pump being electrically driven
08for submerged use
F04D 7/02 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
7Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
02of centrifugal type
F16J 15/42 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
40by means of fluid
42kept in sealing position by centrifugal force
B41J 2/175 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005characterised by bringing liquid or particles selectively into contact with a printing material
01Ink jet
17characterised by ink handling
175Ink supply systems
CPC
B41J 2/175
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, ; e.g. INK-JET PRINTERS, THERMAL PRINTERS; , i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
2Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
005characterised by bringing liquid or particles selectively into contact with a printing material
01Ink jet
17characterised by ink handling
175Ink supply systems ; ; Circuit parts therefor
F04D 13/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
13Pumping installations or systems
02Units comprising pumps and their driving means
06the pump being electrically driven
08for submerged use
F04D 29/16
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
16between pressure and suction sides
F04D 7/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
DNON-POSITIVE-DISPLACEMENT PUMPS
7Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
02of centrifugal type
F16J 15/42
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
40by means of fluid
42kept in sealing position by centrifugal force
Applicants
  • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. [US]/[US]
Inventors
  • SEEMANN, Ziv
  • DRUTMAN, Yuri
  • HARARI, Yinon
Agents
  • PERRY, Garry A.
  • FOR ADDITIONAL NAMES, see the attached copy of a General Power of Attorney
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) TURBOMACHINE WITH SEAL
(FR) TURBOMACHINE AVEC JOINT D'ÉTANCHÉITÉ
Abstract
(EN)
Example implementations relate to transporting fluids. One example implementation includes a centrifugal pump having an impeller arranged to rotate within a casing in order to draw a fluid from an inlet of the impeller to a circumferential chamber of the casing. A seal is formed between an inner surface of the casing and a surface of the impeller. The seal has an annular recess in one of these surfaces and a plurality of blades on the other surface. The blades are arranged to rotate within the annular recess.
(FR)
Selon des modes de réalisation cités à titre d'exemple, cette invention concerne le transport de fluides. Un mode de réalisation cité à titre d'exemple comprend une pompe centrifuge ayant une roue agencée pour tourner à l'intérieur d'un carter afin d'aspirer un fluide d'une entrée de la roue à une chambre circonférentielle du carter. Un joint d'étanchéité est formé entre une surface interne du carter et une surface de la roue. Le joint d'étanchéité présente un évidement annulaire dans l'une de ces surfaces et une pluralité d'aubes sur l'autre surface. Les aubes sont agencées pour tourner à l'intérieur de l'évidement annulaire.
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