Title:
SHAFT SEAL DEVICE AND COMPRESSOR
Document Type and Number:
Japanese Patent JP2016121761
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To maintain sealability of a seal surface over a long period.SOLUTION: On the contact surface of a housing 53 and a stationary ring 21 and a contact surface of a shaft 63 and a rotary ring 22, a plurality of O rings 23-26 are provided so as to align in the axial direction of the shaft 63. The O rings 23, 25 arranged in a refrigerant side direction inside the housing 53 are more excellent in foam resistance than the O rings 24, 26 arranged in an atmosphere side direction outside of the housing 53. The O rings 24, 26 arranged in the atmosphere side direction outside of the housing 53 are more excellent in permeation resistance than the O rings 23, 25 arranged in the refrigerant side direction inside the housing.SELECTED DRAWING: Figure 2
Inventors:
OKUMA TORU
AKIYAMA KUNITAKA
TAKAHASHI TAKUDO
AKIYAMA KUNITAKA
TAKAHASHI TAKUDO
Application Number:
JP2014262227A
Publication Date:
July 07, 2016
Filing Date:
December 25, 2014
Export Citation:
Assignee:
DENSO CORP
International Classes:
F16J15/34; F04B39/00; F16J15/18
Attorney, Agent or Firm:
Patent Business Corporation Yuai Patent Office