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Patent Searching and Data


Title:
MECHANICAL SEAL FOR COMPRESSOR
Document Type and Number:
Japanese Patent JP2004332767
Kind Code:
A
Abstract:

To provide a mechanical seal for a compressor for enhancing the shaft sealing function by preventing partial wear between a rotary ring and a fixed ring.

In a mechanical seal 14 in which a rotary ring 142 rotated with a shaft 12 and a fixed ring 143 tightly attached to the rotary ring 142 are provided between a front housing 13 and the shaft 12 piercing the front housing 13, and the rotary ring 142 and the fixed ring 143 are fixed by a fixing member 148, the fixing member 148 is constituted of a pressure-resistant screw member to be screwed with the front housing 13. Even when the pressure eccentric to the fixing member 148 through the fixed ring 143 is applied, the fixing member can sufficiently withstand the eccentric pressure, and the fixing member 148 is not deformed thereby. Thus, the rotary ring 142 is brought into contact with the fixed ring 143 in a constantly uniform manner, and no partial wear occurs on a contact surface S1.


Inventors:
Tsunoda, Masataka
Application Number:
JP2003000125560
Publication Date:
November 25, 2004
Filing Date:
April 30, 2003
Export Citation:
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Assignee:
SANDEN CORP
International Classes:
F04B39/00; F04B35/00; F04C27/00; F16J15/34; (IPC1-7): F16J15/34; F04B35/00; F04B39/00; F04C27/00
Attorney, Agent or Firm:
吉田 精孝