JPS5677595A - Annular blower - Google Patents
Annular blowerInfo
- Publication number
- JPS5677595A JPS5677595A JP15508679A JP15508679A JPS5677595A JP S5677595 A JPS5677595 A JP S5677595A JP 15508679 A JP15508679 A JP 15508679A JP 15508679 A JP15508679 A JP 15508679A JP S5677595 A JPS5677595 A JP S5677595A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- casing
- hard
- gap
- light
- 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.)
- Pending
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To prevent leakage of high-pressure air by a method wherein such a gap that a casing and a ring substantially do not contact with each other is provided between the casing and the ring by using a ring made of a hard, light-weighted resin.
CONSTITUTION: An annular groove 22 opening toward the casing 4 is provided at the lateral part of a vane wheel 21 which is faced to the casing 4 with a small gap therebetween. The ring 23 made of the hard, light-weighted resin such as polystyrene foam is fixed in the groove 22 by fitting under pressure. The pressure contact surface of the ring 23 is worn in a short period of time accompanying with the rotation of the wheel 21, and the gap substantially preventing the casing 4 and the ring 23 from mutual contact is formed between the casing 4 and the ring 23 after the blower is operated for a certain period of time. Accordingly, leakage of air at the part in question can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15508679A JPS5677595A (en) | 1979-11-30 | 1979-11-30 | Annular blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15508679A JPS5677595A (en) | 1979-11-30 | 1979-11-30 | Annular blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5677595A true JPS5677595A (en) | 1981-06-25 |
Family
ID=15598339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15508679A Pending JPS5677595A (en) | 1979-11-30 | 1979-11-30 | Annular blower |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5677595A (en) |
-
1979
- 1979-11-30 JP JP15508679A patent/JPS5677595A/en active Pending
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