GB904546A - Improvements in or relating to rotor blades of turbines and compressors - Google Patents

Improvements in or relating to rotor blades of turbines and compressors

Info

Publication number
GB904546A
GB904546A GB856158A GB856158A GB904546A GB 904546 A GB904546 A GB 904546A GB 856158 A GB856158 A GB 856158A GB 856158 A GB856158 A GB 856158A GB 904546 A GB904546 A GB 904546A
Authority
GB
United Kingdom
Prior art keywords
blade
passages
lugs
dogs
rotor
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.)
Expired
Application number
GB856158A
Inventor
Nelson Hector Kent
Philip Edgar Hunter
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Priority to GB856158A priority Critical patent/GB904546A/en
Publication of GB904546A publication Critical patent/GB904546A/en
Expired legal-status Critical Current

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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
    • F01D5/187—Convection cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

904,546. Turbines and compressors. ROLLSROYCE Ltd. March 17, 1959 [March 17, 1958], No. 8561/58. Class 110 (3). A rotor blade of an axial flow compressor or turbine contains at least two independent internal flow paths, each comprising a plurality of passages running substantially the length of the blade, the passages of a path terminating in one of a pair of openings in or adjacent the surface of a blade root and being connected together at the opposite end of the blade. A cooling fluid, such as compressed air is fed through openings 37 in the rotor disc 10 to a circumferential slot 33. The air enters the blade through bores 22, 29. A vee-sectioned passage 20, adjacent the leading edge conducts the air to a recess 26 in the tip and passages 24 conduct the air back to the root. The trailing edge is similarly cooled through a passage 28 and a recess 31 communicating with passages 30. The recesses 26, 31 are covered by a blanking plate 27 which prevents communication between the two. The coolant passes through drillings 24a, 30a into spaces 25 and then to outlets 25a. Plates have circumferentially spaced dogs 19b which locate behind lugs 11a in the rotor disc. The dogs and lugs are so spaced that each disc can be offered up to the rotor with the dogs angularly between the lugs and can then be rotated to bring the dogs behind the lugs. The plates are fixed to the disc by set-screws 19c and when in position also hold the blade roots axially. Additional passages may be provided in the medial portion of the blade for passing coolant from the root to openings in the tip. The invention is also applicable to the heating of compressor blades.
GB856158A 1958-03-17 1958-03-17 Improvements in or relating to rotor blades of turbines and compressors Expired GB904546A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB856158A GB904546A (en) 1958-03-17 1958-03-17 Improvements in or relating to rotor blades of turbines and compressors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB856158A GB904546A (en) 1958-03-17 1958-03-17 Improvements in or relating to rotor blades of turbines and compressors

Publications (1)

Publication Number Publication Date
GB904546A true GB904546A (en) 1962-08-29

Family

ID=9854839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB856158A Expired GB904546A (en) 1958-03-17 1958-03-17 Improvements in or relating to rotor blades of turbines and compressors

Country Status (1)

Country Link
GB (1) GB904546A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239491A (en) * 1989-11-28 1991-07-03 Copermill Ltd Cooling hot gas blower blades.
US5350277A (en) * 1992-11-20 1994-09-27 General Electric Company Closed-circuit steam-cooled bucket with integrally cooled shroud for gas turbines and methods of steam-cooling the buckets and shrouds
US5536143A (en) * 1995-03-31 1996-07-16 General Electric Co. Closed circuit steam cooled bucket
US5941687A (en) * 1996-11-12 1999-08-24 Rolls-Royce Plc Gas turbine engine turbine system
US5993155A (en) * 1997-03-29 1999-11-30 Asea Brown Boveri Ag Cooled gas-turbine blade
EP1411208A1 (en) * 2002-10-18 2004-04-21 General Electric Company Compressor blade with unloaded leading edge and method of unloading the leading edge of a compressor blade
GB2399866A (en) * 2003-03-26 2004-09-29 Rolls Royce Plc A compressor blade
JP2013217366A (en) * 2012-04-05 2013-10-24 General Electric Co <Ge> Cmc blade with pressurized internal cavity for erosion control
US20170114643A1 (en) * 2014-04-15 2017-04-27 Siemens Aktiengesellschaft Rotor having axially secured support ring

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2239491A (en) * 1989-11-28 1991-07-03 Copermill Ltd Cooling hot gas blower blades.
GB2239491B (en) * 1989-11-28 1993-09-29 Copermill Ltd Hot gas blower
US5350277A (en) * 1992-11-20 1994-09-27 General Electric Company Closed-circuit steam-cooled bucket with integrally cooled shroud for gas turbines and methods of steam-cooling the buckets and shrouds
US5536143A (en) * 1995-03-31 1996-07-16 General Electric Co. Closed circuit steam cooled bucket
US5941687A (en) * 1996-11-12 1999-08-24 Rolls-Royce Plc Gas turbine engine turbine system
US5993155A (en) * 1997-03-29 1999-11-30 Asea Brown Boveri Ag Cooled gas-turbine blade
EP1411208A1 (en) * 2002-10-18 2004-04-21 General Electric Company Compressor blade with unloaded leading edge and method of unloading the leading edge of a compressor blade
KR100847942B1 (en) * 2002-10-18 2008-07-22 제너럴 일렉트릭 캄파니 Undercut leading edge for compressor blades and related method
GB2399866A (en) * 2003-03-26 2004-09-29 Rolls Royce Plc A compressor blade
GB2399866B (en) * 2003-03-26 2005-06-15 Rolls Royce Plc A fan blade
US7118346B2 (en) 2003-03-26 2006-10-10 Rolls-Royce Plc Compressor blade
JP2013217366A (en) * 2012-04-05 2013-10-24 General Electric Co <Ge> Cmc blade with pressurized internal cavity for erosion control
US20170114643A1 (en) * 2014-04-15 2017-04-27 Siemens Aktiengesellschaft Rotor having axially secured support ring

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