FR3085190B1 - A TURBOCHARGER HAVING A BEARING SLEEVE PROVIDED WITH A CROSS-SECTION REDUCTION - Google Patents

A TURBOCHARGER HAVING A BEARING SLEEVE PROVIDED WITH A CROSS-SECTION REDUCTION Download PDF

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Publication number
FR3085190B1
FR3085190B1 FR1857595A FR1857595A FR3085190B1 FR 3085190 B1 FR3085190 B1 FR 3085190B1 FR 1857595 A FR1857595 A FR 1857595A FR 1857595 A FR1857595 A FR 1857595A FR 3085190 B1 FR3085190 B1 FR 3085190B1
Authority
FR
France
Prior art keywords
radial bearing
cross
section reduction
bearing portion
drive shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1857595A
Other languages
French (fr)
Other versions
FR3085190A1 (en
Inventor
Julien Cote
Patrice Bonnefoi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Danfoss AS
Original Assignee
Danfoss AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Danfoss AS filed Critical Danfoss AS
Priority to FR1857595A priority Critical patent/FR3085190B1/en
Publication of FR3085190A1 publication Critical patent/FR3085190A1/en
Application granted granted Critical
Publication of FR3085190B1 publication Critical patent/FR3085190B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F04D29/057—Bearings hydrostatic; hydrodynamic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/062—Details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/22—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with arrangements compensating for thermal expansion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/06—Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C37/00—Cooling of bearings
    • F16C37/002—Cooling of bearings of fluid bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2362/00—Apparatus for lighting or heating
    • F16C2362/52—Compressors of refrigerators, e.g. air-conditioners

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Supercharger (AREA)

Abstract

Le turbocompresseur (1) comporte un arbre d'entraînement (3) ; au moins un rouet (7) relié à l'arbre d'entraînement (3) ; un moteur électrique (8) ayant un rotor (10) relié à l'arbre d'entraînement (3) ; un manchon de palier (16) comportant une partie de palier radial (17) configurée pour supporter en rotation l'arbre d'entraînement (3), une partie de manchon externe (18) entourant la partie de palier radial (17), un espacement annulaire (20) formé entre la partie de palier radial (17) et la partie de manchon externe (18), une partie de liaison (P) reliant la partie de palier radial (17) à la partie de manchon externe (18), et une zone de refroidissement (31) formée dans une surface circonférentielle externe (32) de la partie manchon externe (18). La partie de palier radial (17) comporte au moins une réduction de section transversale configurée pour augmenter la résistance thermique de la partie de palier radial (17), l'au moins une réduction de section transversale comportant une réduction de section transversale (36) axialement située entre la partie de liaison (P) et une surface de palier radial (17.1) de la partie de palier radial (17).The turbocharger (1) has a drive shaft (3); at least one impeller (7) connected to the drive shaft (3); an electric motor (8) having a rotor (10) connected to the drive shaft (3); a bearing sleeve (16) having a radial bearing portion (17) configured to rotatably support the drive shaft (3), an outer sleeve portion (18) surrounding the radial bearing portion (17), a annular space (20) formed between the radial bearing portion (17) and the outer sleeve portion (18), a connecting portion (P) connecting the radial bearing portion (17) to the outer sleeve portion (18) , and a cooling zone (31) formed in an outer circumferential surface (32) of the outer sleeve portion (18). The radial bearing portion (17) has at least one cross section reduction configured to increase thermal resistance of the radial bearing portion (17), the at least one cross section reduction including a cross section reduction (36) axially located between the connecting portion (P) and a radial bearing surface (17.1) of the radial bearing portion (17).

FR1857595A 2018-08-22 2018-08-22 A TURBOCHARGER HAVING A BEARING SLEEVE PROVIDED WITH A CROSS-SECTION REDUCTION Active FR3085190B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1857595A FR3085190B1 (en) 2018-08-22 2018-08-22 A TURBOCHARGER HAVING A BEARING SLEEVE PROVIDED WITH A CROSS-SECTION REDUCTION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1857595A FR3085190B1 (en) 2018-08-22 2018-08-22 A TURBOCHARGER HAVING A BEARING SLEEVE PROVIDED WITH A CROSS-SECTION REDUCTION

Publications (2)

Publication Number Publication Date
FR3085190A1 FR3085190A1 (en) 2020-02-28
FR3085190B1 true FR3085190B1 (en) 2020-12-25

Family

ID=65861331

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1857595A Active FR3085190B1 (en) 2018-08-22 2018-08-22 A TURBOCHARGER HAVING A BEARING SLEEVE PROVIDED WITH A CROSS-SECTION REDUCTION

Country Status (1)

Country Link
FR (1) FR3085190B1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1942638A1 (en) * 1969-08-21 1971-05-19 Linde Ag Shaft bearing
CH677818A5 (en) * 1988-05-30 1991-06-28 Sulzer Ag
US5176455A (en) * 1991-07-18 1993-01-05 Rockwell International Corporation Gradated hydrostatic bearing
US6637942B2 (en) * 2001-10-03 2003-10-28 Dresser-Rand Company Bearing assembly and method
FR3037110B1 (en) * 2015-06-05 2019-11-01 Danfoss A/S CENTRIFUGAL REFRIGERATING COMPRESSOR
FR3055678B1 (en) * 2016-09-02 2020-09-18 Danfoss Silicon Power Gmbh AXIAL BEARING ARRANGEMENT FOR A CENTRIFUGAL COMPRESSOR DRIVE SHAFT

Also Published As

Publication number Publication date
FR3085190A1 (en) 2020-02-28

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