GB2546952A - A turbomachine shaft and journal bearing assembly - Google Patents

A turbomachine shaft and journal bearing assembly

Info

Publication number
GB2546952A
GB2546952A GB1708205.8A GB201708205A GB2546952A GB 2546952 A GB2546952 A GB 2546952A GB 201708205 A GB201708205 A GB 201708205A GB 2546952 A GB2546952 A GB 2546952A
Authority
GB
United Kingdom
Prior art keywords
journal bearing
turbomachine shaft
turbomachine
shaft
bearing assembly
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.)
Granted
Application number
GB1708205.8A
Other versions
GB2546952B (en
GB201708205D0 (en
Inventor
Burkinshaw Michael
Robert Arthur Lancaster Craig
Maxim Hall Jason
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.)
Cummins Ltd
Original Assignee
Cummins Ltd
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 Cummins Ltd filed Critical Cummins Ltd
Publication of GB201708205D0 publication Critical patent/GB201708205D0/en
Publication of GB2546952A publication Critical patent/GB2546952A/en
Application granted granted Critical
Publication of GB2546952B publication Critical patent/GB2546952B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/16—Arrangement of bearings; Supporting or mounting bearings in casings
    • F01D25/166—Sliding contact bearing
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C12/00—Alloys based on antimony or bismuth
    • 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
    • F16C17/18—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with floating brasses or brushing, rotatable at a reduced speed
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F16C33/121—Use of special materials
    • 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
    • F16C17/26—Systems consisting of a plurality of sliding-contact 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
    • F16C2204/00—Metallic materials; Alloys
    • F16C2204/10—Alloys based on copper
    • F16C2204/12—Alloys based on copper with tin as the next major constituent
    • 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
    • F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
    • F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
    • F16C2240/54—Surface roughness
    • 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
    • F16C2360/00—Engines or pumps
    • F16C2360/23—Gas turbine engines
    • F16C2360/24—Turbochargers
    • 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
    • F16C3/00—Shafts; Axles; Cranks; Eccentrics
    • F16C3/02—Shafts; Axles

Abstract

A turbomachine comprising a turbomachine shaft (4) for rotation about an axis (4a) and for supporting a turbine wheel (5) at one end of the turbomachine shaft; and a bearing housing (3) having a wall defining a bore in which the turbomachine shaft is received with a substantially annular clearance, the turbomachine shaft being supported for rotation in the bore by at least one journal bearing (26a, 26b) located within the annular clearance. A surface (36a, 36b) of the turbomachine shaft which radially underlies the or each journal bearing has a surface roughness (Ra) of less than 0.15 microns and the or each journal bearing comprises a bronze alloy incorporating bismuth in an amount of up to around 6 wt%.
GB1708205.8A 2014-12-19 2015-12-18 A turbomachine shaft and journal bearing assembly Active GB2546952B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB201422701 2014-12-19
PCT/GB2015/054089 WO2016097766A1 (en) 2014-12-19 2015-12-18 A turbomachine shaft and journal bearing assembly

Publications (3)

Publication Number Publication Date
GB201708205D0 GB201708205D0 (en) 2017-07-05
GB2546952A true GB2546952A (en) 2017-08-02
GB2546952B GB2546952B (en) 2018-06-06

Family

ID=55025259

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1708205.8A Active GB2546952B (en) 2014-12-19 2015-12-18 A turbomachine shaft and journal bearing assembly

Country Status (4)

Country Link
US (1) US10125818B2 (en)
DE (1) DE112015005235T5 (en)
GB (1) GB2546952B (en)
WO (1) WO2016097766A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6532492B2 (en) * 2017-01-27 2019-06-19 三菱重工エンジン＆ターボチャージャ株式会社 Bearing oiling device and exhaust turbine turbocharger
JP7119829B2 (en) * 2018-09-25 2022-08-17 トヨタ自動車株式会社 turbocharger

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030128903A1 (en) * 2001-12-20 2003-07-10 Nissan Motor Co., Ltd. Sliding element, sliding structure including the sliding element, and method for producing microscopic surface structure in the sliding element
GB2394230A (en) * 2002-10-15 2004-04-21 Daido Metal Co Copper alloy containing bismuth
WO2009084072A1 (en) * 2007-12-28 2009-07-09 Nissan Motor Co., Ltd. Sliding device including sliding bearing

Family Cites Families (20)

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Publication number Priority date Publication date Assignee Title
GB596626A (en) * 1945-07-31 1948-01-07 Glacier Co Ltd Improvements in or relating to materials for bearing surfaces
US2131062A (en) * 1936-02-11 1938-09-27 H L F Company Treatment of metal
GB704269A (en) * 1951-07-19 1954-02-17 Pilkington Brothers Ltd Improvements in and relating to the grinding of plate glass
US3322547A (en) * 1964-03-27 1967-05-30 Eutectic Welding Alloys Alloy powder for flame spraying
US3730705A (en) * 1971-03-01 1973-05-01 Koppers Co Inc Method of making leaded-tin bronze alloys
US4551395A (en) * 1984-09-07 1985-11-05 D.A.B. Industries, Inc. Bearing materials
DE3535659C1 (en) * 1985-10-04 1987-04-02 Swarovski & Co Use of a bronze alloy for sintered grinding bodies
US5827040A (en) * 1996-06-14 1998-10-27 Capstone Turbine Corporation Hydrostatic augmentation of a compliant foil hydrodynamic fluid film thrust bearing
JPH11351242A (en) 1998-06-08 1999-12-24 Ebara Corp Low viscosity fluid lubricating bearing
US7112036B2 (en) * 2003-10-28 2006-09-26 Capstone Turbine Corporation Rotor and bearing system for a turbomachine
DE102004008631A1 (en) * 2004-02-21 2005-09-08 Ks Gleitlager Gmbh Bearing material
JP4544951B2 (en) 2004-05-28 2010-09-15 京セラ株式会社 Sliding device and motor using the same
JP4410612B2 (en) * 2004-06-10 2010-02-03 大豊工業株式会社 Pb-free bearing for fuel injection pump
JP5289065B2 (en) * 2007-02-14 2013-09-11 大豊工業株式会社 Pb-free copper-based sintered sliding material
JP4912271B2 (en) 2007-10-17 2012-04-11 株式会社ミツバ Sintered oil-impregnated bearing and rotating electric machine
EP2239345B1 (en) * 2008-01-23 2014-11-26 Taiho Kogyo Co., Ltd Process for production of sintered copper alloy sliding material and sintered copper alloy sliding material
JP4806823B2 (en) * 2008-05-09 2011-11-02 石川県 Bronze alloy and manufacturing method thereof, sliding member using bronze alloy
JP5761560B2 (en) 2011-04-06 2015-08-12 株式会社Ihi Thrust support device
US9476428B2 (en) * 2011-06-01 2016-10-25 R & D Dynamics Corporation Ultra high pressure turbomachine for waste heat recovery
JP5436510B2 (en) 2011-10-06 2014-03-05 大同メタル工業株式会社 Copper-based sliding material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030128903A1 (en) * 2001-12-20 2003-07-10 Nissan Motor Co., Ltd. Sliding element, sliding structure including the sliding element, and method for producing microscopic surface structure in the sliding element
GB2394230A (en) * 2002-10-15 2004-04-21 Daido Metal Co Copper alloy containing bismuth
WO2009084072A1 (en) * 2007-12-28 2009-07-09 Nissan Motor Co., Ltd. Sliding device including sliding bearing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
LAGERMETALL AB: "Federalloys III - C 893 25", pages 1 - 2, XP002754630, Retrieved from the Internet <URL:www.lagermetall.com/bronze/89325.aspx> [retrieved on 20160223] *

Also Published As

Publication number Publication date
DE112015005235T5 (en) 2017-09-28
GB2546952B (en) 2018-06-06
US10125818B2 (en) 2018-11-13
WO2016097766A1 (en) 2016-06-23
GB201708205D0 (en) 2017-07-05
US20170370409A1 (en) 2017-12-28

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