Title:
DAMPER SHIELD OF SUPERCONDUCTIVE ROTOR
Document Type and Number:
Japanese Patent JPS60234458
Kind Code:
A
Abstract:
PURPOSE:To prevent a normal temperature damper and both inner and outer holding cylinders from displacing strongly even when a defect of generating an external variation magnetic field by forming the cross sectional shape of the both inner and outer surfaces of the damper in noncircular shape and matching the contacting surface shape of the both cylinders thereto. CONSTITUTION:A normal temperature damper 1 made of good conductive material is formed on the inner and outer peripheral surfaces in noncircular regular dodecagonal shape. Holding cylinders 2, 3 are rigidly secured to the inner and outer sides of the damper 1. Thus, the inner and outer cylinders 2, 3 are formed in noncircular regular dodecagonal shape to construct a damper shield. The shield is constructed in the outer periphery of a superconductive rotor to coat the superconductive field winding. Thus, if a defect occurs at the external variation magnetic field, a shearing force is generated at the damper 1, but since the damper is formed in a polygonal shape, it is pressed by the shearing force to the cylinder 2 to prevent the damper 1 from moving by the reaction and the frictional force.
Inventors:
TOKUMASU TADASHI
Application Number:
JP8842084A
Publication Date:
November 21, 1985
Filing Date:
May 04, 1984
Export Citation:
Assignee:
TOSHIBA KK
International Classes:
H02K55/04; (IPC1-7): H02K55/04
Attorney, Agent or Firm:
Norio Ogo (1 outside)