GB174154A - Improvements in and relating to vibration damping devices for elastic fluid turbines - Google Patents

Improvements in and relating to vibration damping devices for elastic fluid turbines

Info

Publication number
GB174154A
GB174154A GB2909820A GB2909820A GB174154A GB 174154 A GB174154 A GB 174154A GB 2909820 A GB2909820 A GB 2909820A GB 2909820 A GB2909820 A GB 2909820A GB 174154 A GB174154 A GB 174154A
Authority
GB
United Kingdom
Prior art keywords
dash
pot
mercury
thrust
piston
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
GB2909820A
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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority claimed from US353753A external-priority patent/US1421785A/en
Application filed by General Electric Co filed Critical General Electric Co
Priority to GB2909820A priority Critical patent/GB174154A/en
Publication of GB174154A publication Critical patent/GB174154A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/04Antivibration arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/04Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to undesired position of rotor relative to stator or to breaking-off of a part of the rotor, e.g. indicating such position

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Support Of The Bearing (AREA)

Abstract

174,154. British Thomson - Houston Co,. Ltd., (General Electric Co.). Oct. 14, 1920. Dash-pots and fluid-friction vibration-dampers. -For damping the axial vibrations of turbine shafts, a thrust-absorbing member capable of axial movement is rigidly connected with the movable member of a dash-pot which is adapted to check quick motions but does not seriously interfere with slow motions, the thrust bearing and the dash-pot being so arranged relatively to one another that the lubricant of the thrust bearing cannot enter the dash-pot. The turbine shaft 7 is connected to a thrust disc 15 which, together with the bearing discs 19, is located within an axially movable thrust casing 11, 14 having trunnions connected by rods (not shown), with a yoke 27. This yoke engages the rod 31 of the piston 32 of a mercury dash-pot, which allows a slow transfer of mercury from one side of the piston to the other through the clearance between piston and cylinder. Mercury forced past the U-shaped packing 33 enters a chamber 37 in the head 30 of the dash-pot and flows upwards to a reservoir 40 which is open to the atmosphere and communicates with opposite sides of the piston 32 through pairs of inwardly opening valves 45. Should any mercury leak past the stuffing-box 34 it is caught in a container 43. The oil for the two sides of the thrust disc 15 is fed by a pipe 20 and discharged by a pipe 22, the duct 23 through which part of the oil escapes being arranged above the shaft and its bearing 17 to ensure a permanent supply of lubricant to the latter. The oil and mercury systems unite to restrict the axial movements of the shaft 7, but are maintained entirely separate. Specification 19169/12 is referred to.
GB2909820A 1920-01-24 1920-10-14 Improvements in and relating to vibration damping devices for elastic fluid turbines Expired GB174154A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2909820A GB174154A (en) 1920-01-24 1920-10-14 Improvements in and relating to vibration damping devices for elastic fluid turbines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US353753A US1421785A (en) 1920-01-24 1920-01-24 Vibration damper
GB2909820A GB174154A (en) 1920-01-24 1920-10-14 Improvements in and relating to vibration damping devices for elastic fluid turbines

Publications (1)

Publication Number Publication Date
GB174154A true GB174154A (en) 1922-01-16

Family

ID=26259746

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2909820A Expired GB174154A (en) 1920-01-24 1920-10-14 Improvements in and relating to vibration damping devices for elastic fluid turbines

Country Status (1)

Country Link
GB (1) GB174154A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3486436A1 (en) * 2017-11-21 2019-05-22 United Technologies Corporation Ablatable shaft feature in a gas turbine engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3486436A1 (en) * 2017-11-21 2019-05-22 United Technologies Corporation Ablatable shaft feature in a gas turbine engine
US10753281B2 (en) 2017-11-21 2020-08-25 Raytheon Technologies Corporation Ablatable shaft feature in a gas turbine engine

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