Title:
MASSIVE GAS CIRCULATION BLOWER FOR HIGH PERFORMANCE LASER USING GAS CARRIER PRINCIPLE
Document Type and Number:
Japanese Patent JPS6425492
Kind Code:
A
Abstract:
PURPOSE: To eliminate a mechanical defect of a bearing of a rotator by holding both ends of the rotator of a blower with a radial gas bearing and an axial flow gas bearing. CONSTITUTION: A spiral groove 53 is provided to the first axis corresponding surface 51 and a radial corresponding surface, and the first axis air gap 54 is generated between a surface 32 and the surface 51, and herringbone pattern grooves are provided therein, to form a radial gas bearing. A radial air gap 55 exists between a radial surface 33 and the surface 52 in a corresponding manner, and it forms an axis air gap with the spiral groove, and the second radial gas bearing is formed on the right end of a rotator 50. The rotator 50 is assigned at the center of a housing 11, and held with both the bearings. Axial cylinders 31 and 37 fixed to the housing 11 are connected to the housing 11 across members, which is formed as guide vanes 30 and 36, and delivery members 65 and 66 are assigned, as axial flow gas bearings, between the axial cylinders 31 and 37. Thereby the bearings, which allows even large number of rotation, are constituted with a simple structure.
Inventors:
RICHIYAADO JIEJINGAA
Application Number:
JP16700388A
Publication Date:
January 27, 1989
Filing Date:
July 06, 1988
Export Citation:
Assignee:
FORTUNA WERKE MASCHF GMBH
International Classes:
F04D19/00; F04D29/04; F04D29/057; F04D29/58; H01S3/036; H01S3/097; (IPC1-7): F04D19/00; H01S3/097
Attorney, Agent or Firm:
Toru Tanabe