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US 4,398,111 AGranted
Eddy current brake
AssigneeBaylor Company
InventorHoward W. Zuch
Life of this patent
Estimating the term…
Abstract
An eddy current machine has a disc-type rotor mounted on a transversely disposed shaft and circularly arranged sets of adjacent poles of different polarity. A uniform flux path is provided for the magnetic lines of flux. The air gap between the pole faces and the rotor can be adjusted. Cooling fluid circulates around both rotor and pole faces.
Claims13
An eddy current brake, comprising:
- (a) a closed hollow housing which is relatively thin along its transverse axis and has a generally circular shape along its longitudinal axis and including a relatively flat disc-shaped end cap member constituting each side thereof,
- (b) a disc-shaped rotor centrally disposed within the housing and having two flat annular side faces adjacent the periphery thereof and which is mounted on a shaft extending transversely thereto and along the transverse central axis of the housing,
- (c) a magnetic pole assembly including a set of interdigitated spaced circularly arranged poles which are disposed within the housing and in the same plane on each side of the rotor adjacent each flat annular side face adjacent the periphery thereof, each adjacent pole being of opposite polarity,
- (d) a circular magnetic coil supported within the housing on each end cap member immediately adjacent each set of spaced circularly arranged poles and in connection therewith through a metal connecting flux path in the end cap member, and
- (e) the housing having means for permitting coolant fluid flow into the housing at the periphery of the rotor and through the housing to remove generated heat.
2 more elements
An eddy current brake, comprising:
- (a) a hollow housing which is relatively thin along its transverse axis and has a generally circular shape along its longitudinal axis with relatively flat circular end cap sides which are fastened thereto to permit axial movement thereof,
- (b) a disc-shaped rotor having two flat annular side faces adjacent the periphery thereof and which is mounted on a shaft extending transversely thereto and is disposed along the transverse axis of the housing,
- (c) an inner concentric circular pole ring disposed on each side of the rotor and fastened to the adjacent end cap sides of the housing,
- (d) the pole rings having a plurality of spaced poles which extend radially outward and have faces disposed adjacent the annular rotor flat side face,
- (e) an outer concentric circular pole ring disposed on each side of the rotor which is fastened to the adjacent end cap sides of the housing,
- (f) the poles of the inner and outer pole rings being spaced such that the poles of one ring project into and between two adjacent poles of the other ring, and
- (g) a circular magnetic coil disposed adjacent each of the pole rings and having a magnetic path to the faces of such poles in each of the rings.
4 more elements
Dependencies are inferred from the claim text.