JPS55161992A - Device for reducing thrust of shaft of centrifugal fluid machine - Google Patents
Device for reducing thrust of shaft of centrifugal fluid machineInfo
- Publication number
- JPS55161992A JPS55161992A JP6896679A JP6896679A JPS55161992A JP S55161992 A JPS55161992 A JP S55161992A JP 6896679 A JP6896679 A JP 6896679A JP 6896679 A JP6896679 A JP 6896679A JP S55161992 A JPS55161992 A JP S55161992A
- Authority
- JP
- Japan
- Prior art keywords
- back blades
- static
- impeller
- casing
- blades
- 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
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To simply reduce the thrust of a shaft, by providing back blades which comprise dynamic back blades on the side wall of an impeller and static back blades on a casing and are placed on at least one of the obverse and reverse sides of the impeller to regulate the distribution of static pressure.
CONSTITUTION: Dynamic back blades 11 are provided on the outer part of the back wall 1C of an impeller 1. Static back blades 12 are provided on a casing 4 near the inner part of the back wall 1C. In the gap defined by the dynamic back blades 11 and the casing 4, static pressure falls inwards in the radial direction due to a swirl caused by the dynamic back blades 11, as shown by a one-dot chain line in Fig. In the gas defined by the casing 4 and the static back blades 12, a static pressure fall is reduced because a swirl is suppressed by the static back blades 12, as shown by a two-dot chain line in Fig. Near the bottm of the impeller, the static pressure is higher than that in a case without static back blades.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6896679A JPS55161992A (en) | 1979-06-04 | 1979-06-04 | Device for reducing thrust of shaft of centrifugal fluid machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6896679A JPS55161992A (en) | 1979-06-04 | 1979-06-04 | Device for reducing thrust of shaft of centrifugal fluid machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55161992A true JPS55161992A (en) | 1980-12-16 |
Family
ID=13388916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6896679A Pending JPS55161992A (en) | 1979-06-04 | 1979-06-04 | Device for reducing thrust of shaft of centrifugal fluid machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55161992A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58113599A (en) * | 1981-12-28 | 1983-07-06 | Hitachi Ltd | Centrifugal blower |
| JPS636366A (en) * | 1986-06-25 | 1988-01-12 | 株式会社日立製作所 | Receiver for refrigerator |
| JPS6352991U (en) * | 1986-09-25 | 1988-04-09 | ||
| WO2018190239A1 (en) * | 2017-04-10 | 2018-10-18 | 日本電産サンキョー株式会社 | Pump device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5134561A (en) * | 1974-09-17 | 1976-03-24 | Amano Pharma Co Ltd | JOKAZAI |
-
1979
- 1979-06-04 JP JP6896679A patent/JPS55161992A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5134561A (en) * | 1974-09-17 | 1976-03-24 | Amano Pharma Co Ltd | JOKAZAI |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58113599A (en) * | 1981-12-28 | 1983-07-06 | Hitachi Ltd | Centrifugal blower |
| JPS636366A (en) * | 1986-06-25 | 1988-01-12 | 株式会社日立製作所 | Receiver for refrigerator |
| JPS6352991U (en) * | 1986-09-25 | 1988-04-09 | ||
| WO2018190239A1 (en) * | 2017-04-10 | 2018-10-18 | 日本電産サンキョー株式会社 | Pump device |
| JP2018178820A (en) * | 2017-04-10 | 2018-11-15 | 日本電産サンキョー株式会社 | Pump device |
| KR20180123706A (en) * | 2017-04-10 | 2018-11-19 | 니혼 덴산 산쿄 가부시키가이샤 | Pump device |
| CN109196229A (en) * | 2017-04-10 | 2019-01-11 | 日本电产三协株式会社 | Pump installation |
| US11268517B2 (en) | 2017-04-10 | 2022-03-08 | Nidec Sankyo Corporation | Pump and impeller with auxiliary blades on the underside of the impeller and a permanent magnet rotor |
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