GB347964A - Improvements in and relating to vibration damping devices particularly for turbines, propellers and the like - Google Patents

Improvements in and relating to vibration damping devices particularly for turbines, propellers and the like

Info

Publication number
GB347964A
GB347964A GB20332/30A GB2033230A GB347964A GB 347964 A GB347964 A GB 347964A GB 20332/30 A GB20332/30 A GB 20332/30A GB 2033230 A GB2033230 A GB 2033230A GB 347964 A GB347964 A GB 347964A
Authority
GB
United Kingdom
Prior art keywords
blade
rod
propellers
turbines
relating
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
GB20332/30A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB347964A publication Critical patent/GB347964A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
    • B64C11/008—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft characterised by vibration absorbing or balancing means

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

347,964. Turbine blades. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Kimball, A. L. ; 1546, Wendell Avenue, Schenectady, New York, U.S.A.) July 4, 1930, No. 20332. Convention date, July 5, 1929. [Class 110 (iii).] A device for damping lateral vibrations of turbine blades comprises a rod 8, which has a natural frequency of vibration higher than that of the turbine blade 5, and which is rigidly fixed by the part 9 to the base of the blade. The rod extends into a hole 6 bored in the blade and is surrounded by a fluid. The rod 8 may be tapered and may have the end in the form of a cup 11. Fig. 4 shows the rod fixed by a base 23 in a hole 6 bored out of a propeller blade 12.
GB20332/30A 1929-07-05 1930-07-04 Improvements in and relating to vibration damping devices particularly for turbines, propellers and the like Expired GB347964A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US347964XA 1929-07-05 1929-07-05

Publications (1)

Publication Number Publication Date
GB347964A true GB347964A (en) 1931-05-07

Family

ID=21878656

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20332/30A Expired GB347964A (en) 1929-07-05 1930-07-04 Improvements in and relating to vibration damping devices particularly for turbines, propellers and the like

Country Status (1)

Country Link
GB (1) GB347964A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440815A1 (en) * 1978-07-12 1980-06-06 Fagersta Ab HOLLOW METAL OBJECT, DAMPED AGAINST NOISE
US5415524A (en) * 1993-06-01 1995-05-16 Gamble; Christopher L. Fluid propulsion device
US5558497A (en) * 1995-07-31 1996-09-24 United Technologies Corporation Airfoil vibration damping device
GB2305220A (en) * 1981-07-02 1997-04-02 Secr Defence Ships propeller dampers
US5820343A (en) * 1995-07-31 1998-10-13 United Technologies Corporation Airfoil vibration damping device
US6283707B1 (en) 1999-03-19 2001-09-04 Rolls-Royce Plc Aerofoil blade damper
EP1602801A1 (en) * 2004-05-27 2005-12-07 United Technologies Corporation Rotor blade with a stick damper
US20130039765A1 (en) * 2011-08-12 2013-02-14 Hamilton Sundstrand Corporation Aircraft propellers

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440815A1 (en) * 1978-07-12 1980-06-06 Fagersta Ab HOLLOW METAL OBJECT, DAMPED AGAINST NOISE
GB2305220A (en) * 1981-07-02 1997-04-02 Secr Defence Ships propeller dampers
GB2305220B (en) * 1981-07-02 1998-01-07 Secr Defence Propeller dampers
US5415524A (en) * 1993-06-01 1995-05-16 Gamble; Christopher L. Fluid propulsion device
US5558497A (en) * 1995-07-31 1996-09-24 United Technologies Corporation Airfoil vibration damping device
US5820343A (en) * 1995-07-31 1998-10-13 United Technologies Corporation Airfoil vibration damping device
US6283707B1 (en) 1999-03-19 2001-09-04 Rolls-Royce Plc Aerofoil blade damper
EP1602801A1 (en) * 2004-05-27 2005-12-07 United Technologies Corporation Rotor blade with a stick damper
US7217093B2 (en) 2004-05-27 2007-05-15 United Technologies Corporation Rotor blade with a stick damper
US20130039765A1 (en) * 2011-08-12 2013-02-14 Hamilton Sundstrand Corporation Aircraft propellers
US8882464B2 (en) * 2011-08-12 2014-11-11 Hamilton Sundstrand Corporation Aircraft propellers

Similar Documents

Publication Publication Date Title
GB534193A (en) Improvements in and relating to elastic fluid turbine buckets
GB347964A (en) Improvements in and relating to vibration damping devices particularly for turbines, propellers and the like
GB346480A (en) Improvements in the mounting of blades in steam or gas turbines
GB400957A (en) Improvements in and relating to rotating bodies subject to pulsating torque
GB909004A (en) Improvements in or relating to propeller blades
GB535980A (en) Improvements in and relating to turbine blades
GB523038A (en) Hollow blade for exhaust gas turbine rotors
GB561897A (en) Improvements in or relating to vibration damping means for turbine blades
GB732622A (en) Oscillation dampers for the blades of steam and gas turbines, axial flow compressors and similar machines
GB359349A (en) Method of producing a hollow blade for steam and gas turbines
GB235171A (en) Improvements in or relating to packing means in steam, gas or other turbines
GB574770A (en) Improvements relating to the blades of turbines and other machines
GB355028A (en) Rotor blade for explosion turbines
GB476222A (en) Guiding means for turbo-machines
SU44376A1 (en) The method of excitation of mechanical vibrations of turbine blades
GB721049A (en) Improvements in turbine and dynamic compressor blades
GB572058A (en) Improvements in and relating to bladed bodies
GB271102A (en) Improvements in and relating to elastic fluid turbines
GB479020A (en) Improvements in and relating to vibration damping devices
GB384976A (en) Improvements in centrifugal governors
GB319211A (en) Improvements in and relating to methods of and means for balancing rotors
SU55545A1 (en) The method of mounting the blades in the groove of the steam turbine rotor
GB231898A (en)
GB534382A (en) Improvements in and relating to elastic fluid turbine casings
GB340706A (en) Blade ring for radial flow gas or steam turbines and method for producing such blade rings