GB1456020A - Centrifugal pumps for liquids method of making a drained floor - Google Patents
Centrifugal pumps for liquids method of making a drained floorInfo
- Publication number
- GB1456020A GB1456020A GB5620372A GB5620372A GB1456020A GB 1456020 A GB1456020 A GB 1456020A GB 5620372 A GB5620372 A GB 5620372A GB 5620372 A GB5620372 A GB 5620372A GB 1456020 A GB1456020 A GB 1456020A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vanes
- vane
- pressure
- impeller
- centrifugal
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2272—Rotors specially for centrifugal pumps with special measures for influencing flow or boundary layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1456020 Centrifugal pumps LUCAS INDUSTRIES Ltd 29 Nov 1973 [6 Dec 1972] 56203/72 Heading F1C A centrifugal pump comprises a casing 10, 11 having an inlet 12 and an outlet 13, and an impeller comprising vanes 19 inter-connecting a centre body 16 and a shroud 18, the vanes being formed with slots 19d permitting flow from one side of each vane to the opposite side, and each vane is reversely curved at its inner end 19b towards the direction of impeller rotation so as to reduce shock and the resultant tendency to cavitation. Each slot 19d is nearer the impeller axis at the high-pressure side of the vane 19 than at the low-pressure side to provide a centrifugal pressure gradient which opposes flow along the slot due to the pressure difference caused by "bluff body" effects until the pressure difference exceeds the pressure gradient. The flow ensures that the pressure behind each vane does not become so low that the liquid boils. Shorter vanes 20 are provided between the vanes 19. Still shorter vanes may be provided between the vanes 19, 20.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5620372A GB1456020A (en) | 1972-12-06 | 1972-12-06 | Centrifugal pumps for liquids method of making a drained floor |
FR7343200A FR2210232A5 (en) | 1972-12-06 | 1973-12-04 | |
JP13544573A JPS4996302A (en) | 1972-12-06 | 1973-12-05 | |
DE19732360570 DE2360570A1 (en) | 1972-12-06 | 1973-12-05 | CENTRIFUGAL PUMP |
IT3225973A IT1002342B (en) | 1972-12-06 | 1973-12-27 | CENTRIFUGAL PUMP FOR LIQUIDS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5620372A GB1456020A (en) | 1972-12-06 | 1972-12-06 | Centrifugal pumps for liquids method of making a drained floor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1456020A true GB1456020A (en) | 1976-11-17 |
Family
ID=10476025
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5620372A Expired GB1456020A (en) | 1972-12-06 | 1972-12-06 | Centrifugal pumps for liquids method of making a drained floor |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS4996302A (en) |
DE (1) | DE2360570A1 (en) |
FR (1) | FR2210232A5 (en) |
GB (1) | GB1456020A (en) |
IT (1) | IT1002342B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982003430A1 (en) * | 1981-03-27 | 1982-10-14 | Vartiala Heikki | Propeller |
CN101178011B (en) * | 2007-11-23 | 2012-07-25 | 西安交通大学 | Impeller structure of centripetal turbine |
CN105650032A (en) * | 2016-03-29 | 2016-06-08 | 浙江理工大学 | Pressure expander of centrifugal compressor |
US9777741B2 (en) | 2014-11-20 | 2017-10-03 | Baker Hughes Incorporated | Nozzle-shaped slots in impeller vanes |
CN114607639A (en) * | 2022-02-28 | 2022-06-10 | 江西南方锅炉股份有限公司 | Conveying device for steam boiler equipment |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6045796A (en) * | 1983-08-22 | 1985-03-12 | Toshio Aono | High-speed pump |
US4615659A (en) * | 1983-10-24 | 1986-10-07 | Sundstrand Corporation | Offset centrifugal compressor |
IT1198017B (en) * | 1986-08-06 | 1988-12-21 | Nuovo Pignone Spa | CENTRIFUGAL PUMP PARTICULARLY SUITABLE FOR THE PUMPING OF HIGH GAS CONTENT FLUIDS |
JP6497057B2 (en) * | 2014-12-17 | 2019-04-10 | アイシン精機株式会社 | Centrifugal pump |
CN108180162A (en) * | 2017-12-21 | 2018-06-19 | 江苏双轮泵业机械制造有限公司 | A kind of chemical centrifugal pump of high stability |
CN110094357B (en) * | 2019-04-03 | 2021-07-06 | 青岛经济技术开发区海尔热水器有限公司 | Impeller for centrifugal pump, centrifugal pump and household appliance |
-
1972
- 1972-12-06 GB GB5620372A patent/GB1456020A/en not_active Expired
-
1973
- 1973-12-04 FR FR7343200A patent/FR2210232A5/fr not_active Expired
- 1973-12-05 DE DE19732360570 patent/DE2360570A1/en active Pending
- 1973-12-05 JP JP13544573A patent/JPS4996302A/ja active Pending
- 1973-12-27 IT IT3225973A patent/IT1002342B/en active
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982003430A1 (en) * | 1981-03-27 | 1982-10-14 | Vartiala Heikki | Propeller |
CN101178011B (en) * | 2007-11-23 | 2012-07-25 | 西安交通大学 | Impeller structure of centripetal turbine |
US9777741B2 (en) | 2014-11-20 | 2017-10-03 | Baker Hughes Incorporated | Nozzle-shaped slots in impeller vanes |
CN105650032A (en) * | 2016-03-29 | 2016-06-08 | 浙江理工大学 | Pressure expander of centrifugal compressor |
CN114607639A (en) * | 2022-02-28 | 2022-06-10 | 江西南方锅炉股份有限公司 | Conveying device for steam boiler equipment |
CN114607639B (en) * | 2022-02-28 | 2024-02-20 | 江西南方锅炉股份有限公司 | Conveying device for steam boiler equipment |
Also Published As
Publication number | Publication date |
---|---|
JPS4996302A (en) | 1974-09-12 |
FR2210232A5 (en) | 1974-07-05 |
IT1002342B (en) | 1976-05-20 |
DE2360570A1 (en) | 1974-06-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |