JPS56148695A - Rotary type fluid machine - Google Patents
Rotary type fluid machineInfo
- Publication number
- JPS56148695A JPS56148695A JP5267480A JP5267480A JPS56148695A JP S56148695 A JPS56148695 A JP S56148695A JP 5267480 A JP5267480 A JP 5267480A JP 5267480 A JP5267480 A JP 5267480A JP S56148695 A JPS56148695 A JP S56148695A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- pressure
- seal
- contact seal
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To reduce a load pressure applied to a contact seal by a fluid dynamic pressure seal formed by a method wherein a spiral groove is made at a bearing part of a rotary shaft between the contact seal and the rotor.
CONSTITUTION: When the rotor 1 is rotated, lubricant oil including coolant in the ring groove 20 is suctioned into the high pressure groove 19a in the sprial groove 19 arranged at the bearing part of the rotary shaft 7 and then flowed toward the direction A. In turn, the flow of the lubricant oil is prevented under a pressure at the groove 19b in the contact seal acted upon in a direction B at the crossing line 19c with the groove 19b at the opposite contact seal 11. As a result, a prssure in the fluid at the crossing line 19c is made to be maximum value and the pressure Pm applied to the mechanical seal 11 as shown in the drawing is made to be substantially lower compared to that of the coolant Ps in the cylinder. That is, it is possible to reduce substantially a pressure applied to the mechanical seal 11 under a spiral groove 19.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5267480A JPS56148695A (en) | 1980-04-21 | 1980-04-21 | Rotary type fluid machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5267480A JPS56148695A (en) | 1980-04-21 | 1980-04-21 | Rotary type fluid machine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56148695A true JPS56148695A (en) | 1981-11-18 |
JPS6332998B2 JPS6332998B2 (en) | 1988-07-04 |
Family
ID=12921417
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5267480A Granted JPS56148695A (en) | 1980-04-21 | 1980-04-21 | Rotary type fluid machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56148695A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0341189U (en) * | 1989-08-29 | 1991-04-19 | ||
JPH04111584U (en) * | 1991-03-13 | 1992-09-28 | 光洋精工株式会社 | vane pump |
CN104421429A (en) * | 2013-08-20 | 2015-03-18 | 苏州恒扬精密机械有限公司 | Self-adjusting pressure type rigid ring for mechanical seal |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104564683B (en) * | 2014-11-26 | 2017-01-18 | 宁波市鸿博机械制造有限公司 | Vacuum pump rotor |
-
1980
- 1980-04-21 JP JP5267480A patent/JPS56148695A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0341189U (en) * | 1989-08-29 | 1991-04-19 | ||
JPH04111584U (en) * | 1991-03-13 | 1992-09-28 | 光洋精工株式会社 | vane pump |
CN104421429A (en) * | 2013-08-20 | 2015-03-18 | 苏州恒扬精密机械有限公司 | Self-adjusting pressure type rigid ring for mechanical seal |
Also Published As
Publication number | Publication date |
---|---|
JPS6332998B2 (en) | 1988-07-04 |
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