JPS55131599A - Pump - Google Patents
PumpInfo
- Publication number
- JPS55131599A JPS55131599A JP3690979A JP3690979A JPS55131599A JP S55131599 A JPS55131599 A JP S55131599A JP 3690979 A JP3690979 A JP 3690979A JP 3690979 A JP3690979 A JP 3690979A JP S55131599 A JPS55131599 A JP S55131599A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- rotary shaft
- passage
- impeller
- lubricating
- 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
Abstract
PURPOSE: To shorten a pump in the axial direction thereof, by causing high-pressure water from a passage communication one of grooves formed in a sleeve and a pump chamber to support a rotary shaft, while lubricating with water the sleeve and a rotating portion at their boundaries and also by diposing the sleeve near an impeller.
CONSTITUTION: A passage 14 is provided to communicate one of grooves 13 formed in the inner circumferential surface of a sleeve 9 with a highly-pressured part in a pump chamber 4. As the pressure near the entrance 14a of this passage 14 is high, a part of water penetrates into the groove 13 through the passage 14a. Since a boss 8 is rotating together with the rotary shaft 1, a lubricating-film is formed between said boss 8 and sleeve 9. That is to say, as the rotary shaft 1 is supported while the water film is lubricating the sleeve 9 and the rotating member, the sleeve may be disposed near the impeller 2. Because the sleeve 9 supports the rotary shaft 1 in a surface-to-surface relation, the sleeve 9 may be able to bear sufficiently the stress exerted by the impeller 2 even if it is not considerably long. Consequently, it may be shortened in the axial direction and the rotary shaft 1 may be made thinner in diameter.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3690979A JPS55131599A (en) | 1979-03-30 | 1979-03-30 | Pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3690979A JPS55131599A (en) | 1979-03-30 | 1979-03-30 | Pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55131599A true JPS55131599A (en) | 1980-10-13 |
Family
ID=12482895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3690979A Pending JPS55131599A (en) | 1979-03-30 | 1979-03-30 | Pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55131599A (en) |
-
1979
- 1979-03-30 JP JP3690979A patent/JPS55131599A/en active Pending
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