IT1031996B - Limiting gap current-generated turbine oscillations - by reducing component of current in direction of rotation of oscillating vector - Google Patents

Limiting gap current-generated turbine oscillations - by reducing component of current in direction of rotation of oscillating vector

Info

Publication number
IT1031996B
IT1031996B IT2057875A IT2057875A IT1031996B IT 1031996 B IT1031996 B IT 1031996B IT 2057875 A IT2057875 A IT 2057875A IT 2057875 A IT2057875 A IT 2057875A IT 1031996 B IT1031996 B IT 1031996B
Authority
IT
Italy
Prior art keywords
current
vector
gap
rotation
gap current
Prior art date
Application number
IT2057875A
Other languages
Italian (it)
Original Assignee
Maschf Augsburg Nuernberg Ag
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 DE2413655A external-priority patent/DE2413655C3/en
Application filed by Maschf Augsburg Nuernberg Ag filed Critical Maschf Augsburg Nuernberg Ag
Application granted granted Critical
Publication of IT1031996B publication Critical patent/IT1031996B/en

Links

Landscapes

  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

The method is applicable to steam or gas turbines or compressors with gap in contact-less seals between rotating and stationary components. The desired effect is achieved by reducing the circumferential component of the gap current in the direction in which the oscillating vector of the natural oscillation rotates, or by increasing a circumferential component of the gap current in the opposite direction. For units, other than compressors, in which the oscillation vector rotates in the same direction as the turbine rotor, the circumferential vector in the direction of rotor rotations may be so reduced that the gap current force component, which leads by 90 deg., is reduced, eliminated or reversed in direction. These results may be achieved by incorporating guide means such as vanes, ribs, profiles, ducts etc., in or before the gap.
IT2057875A 1974-03-21 1975-02-24 Limiting gap current-generated turbine oscillations - by reducing component of current in direction of rotation of oscillating vector IT1031996B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2413655A DE2413655C3 (en) 1974-03-21 1974-03-21 Device for dynamic stabilization of the rotor of a gas or steam turbine

Publications (1)

Publication Number Publication Date
IT1031996B true IT1031996B (en) 1979-05-10

Family

ID=5910771

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2057875A IT1031996B (en) 1974-03-21 1975-02-24 Limiting gap current-generated turbine oscillations - by reducing component of current in direction of rotation of oscillating vector

Country Status (5)

Country Link
HU (1) HU174193B (en)
IT (1) IT1031996B (en)
PL (1) PL105787B1 (en)
RO (1) RO90422A (en)
YU (2) YU39731B (en)

Also Published As

Publication number Publication date
PL105787B1 (en) 1979-10-31
RO90422A (en) 1986-10-30
YU3381A (en) 1984-06-30
HU174193B (en) 1979-11-28
YU39175A (en) 1982-08-31
YU39731B (en) 1985-04-30

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