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Patent Searching and Data


Title:
CENTRIFUGAL SUPERCHARGER
Document Type and Number:
Japanese Patent JPH0814056
Kind Code:
A
Abstract:

PURPOSE: To provide a low cost labyrinth seal to prevent a worker from being troubled by management of the gap of the labyrinth seal, improve assembly properties and sealing performance, reduce weight, and improve reliability by a method wherein the labyrinth seal is fixed to the end face of a bearing holder subassembled on a sun gear shaft.

CONSTITUTION: A labyrinth seal 8 being an air seal is previously fixed to the end face of a bearing holder 7 subassembled on the sun gear shaft 13 of an impeller 1. The impeller 1 is assembled in a device even when a mounting error of a bearing holder 7 to a casing flange part 6, i.e., the mounting error of the rotary shaft of the impeller 1, is produced because of a backlash occurring to a thrust bearing 4, the bearing holder 7, the labyrinth seal 8, and the impeller 1 is not changed in a relation position in an axial direction. Thus, a labyrinth gap is kept at a constantly proper value between the properly set labyrinth seal 8 and the back of the impeller 1.


Inventors:
OCHIAI TOMIAKI
Application Number:
JP14301594A
Publication Date:
January 16, 1996
Filing Date:
June 24, 1994
Export Citation:
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Assignee:
TOCHIGI FUJI SANGYO KK
International Classes:
F01D5/04; F01D11/02; F01D25/12; F02B33/40; F02B39/00; (IPC1-7): F02B39/00; F01D5/04; F01D11/02; F01D25/12; F02B33/40
Attorney, Agent or Firm:
Kazuo Nagashima