GB1421807A - Centrifugal pump with means for pulse cancellation - Google Patents
Centrifugal pump with means for pulse cancellationInfo
- Publication number
- GB1421807A GB1421807A GB4569973A GB4569973A GB1421807A GB 1421807 A GB1421807 A GB 1421807A GB 4569973 A GB4569973 A GB 4569973A GB 4569973 A GB4569973 A GB 4569973A GB 1421807 A GB1421807 A GB 1421807A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stage
- volute
- passages
- outlet
- pressure pulses
- 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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
-
- 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
- F04D29/185—Rotors consisting of a plurality of wheels
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2200/00—Mathematical features
- F05B2200/30—Mathematical features miscellaneous
- F05B2200/31—Mathematical features miscellaneous odd
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
1421807 Centrifugal pumps BORG- WARNER CORP 1 Oct 1973 [6 Nov 1972] 45699/73 Heading F1C A centrifugal pump comprises an impeller 33, Fig. 3, having an odd number of vanes 34v, a pump casing having an even number of volute openings defined by volute lips 351 spaced at diametrically opposite locations of an impeller shaft 19, so that pressure pulses produced at the opposed volute lips are 180 degrees out of phase, and volute passages of equal lengths extending from the volute lips to converge to a zone of confluence thereby cancelling the pressure pulses and reducing noise and vibration. The invention is shown in a multi-stage pump, Fig. 1, having an inlet 22 and outlet 23. The first stage S 1 has a double suction impeller 24 and flow passages 30a leading to the second stage S2. The third stage S3 has long cross-over passages 37a leading to the fourth stage S4 which in turn has volute passages 40, 40a leading to a fifth stage S5, stages S4 and S5 being mounted to oppose the axial forces generated by stages S2 and S3. Opposed passages 52, 53 of equal length converge to a common auxiliary outlet 54 at which the pressure pulses are cancelled and enable fluid to be discharged from the stage S2 in advance of the outlet 23, the pressure pulses again being cancelled at the outlet 23.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US30389172A | 1972-11-06 | 1972-11-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1421807A true GB1421807A (en) | 1976-01-21 |
Family
ID=23174144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4569973A Expired GB1421807A (en) | 1972-11-06 | 1973-10-01 | Centrifugal pump with means for pulse cancellation |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3788764A (en) |
| JP (1) | JPS5325122B2 (en) |
| AU (1) | AU6080873A (en) |
| BR (1) | BR7308612D0 (en) |
| CA (1) | CA983318A (en) |
| DE (1) | DE2352641C3 (en) |
| FR (1) | FR2205951A5 (en) |
| GB (1) | GB1421807A (en) |
| IT (1) | IT995941B (en) |
| NL (1) | NL176094C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4277223A (en) * | 1979-11-29 | 1981-07-07 | Guy F. Atkinson Company | Case construction for multi-stage pump |
| DE3011865A1 (en) * | 1980-03-27 | 1981-10-01 | Klein, Schanzlin & Becker Ag, 6710 Frankenthal | SUCTION LEVEL FOR A VERTICALLY SET CONDENSATE PUMP |
| JPS59179300U (en) * | 1983-05-18 | 1984-11-30 | 三菱重工業株式会社 | barrel type pump |
| DE3342304C2 (en) * | 1983-11-23 | 1994-05-19 | Dorr Oliver Deutschland | Device for the production of emulsions |
| JPH0322559Y2 (en) * | 1985-06-20 | 1991-05-16 | ||
| GB0117941D0 (en) * | 2001-07-24 | 2001-09-19 | Weir Pumps Ltd | Pump assembly |
| ITMI20032149A1 (en) * | 2003-11-07 | 2005-05-08 | Nuovo Pignone Spa | MULTI-STAGE CENTRIFUGAL COMPRESSOR WITH HORIZONTALLY OPENABLE CASE |
| CN100432445C (en) * | 2006-07-21 | 2008-11-12 | 广州市花都区花东南方林业扑火工具厂 | Fire Fighting water pump and operating method thereof |
| JP5649055B2 (en) | 2011-01-05 | 2015-01-07 | 株式会社日立製作所 | Barrel type multistage pump |
| ITFI20120272A1 (en) * | 2012-12-05 | 2014-06-06 | Nuovo Pignone Srl | "BACK-TO-BACK CENTRIFUGAL PUMP" |
| ES2866155T3 (en) * | 2015-12-30 | 2021-10-19 | Sulzer Management Ag | Horizontal multi-stage centrifugal pump for the transport of a fluid as well as a procedure for its repair |
| CN109209919A (en) * | 2018-10-25 | 2019-01-15 | 广东江门市力源泵业有限公司 | Deep well pump |
| US11441577B2 (en) * | 2020-02-06 | 2022-09-13 | Curtiss-Wright Electro-Mechanical Corporation | Apparatus for transferring pressurized fluid in a back-to-back multi-stage pump |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2058017A (en) * | 1935-04-13 | 1936-10-20 | Byron Jackson Co | Fluid machine |
| US2108786A (en) * | 1936-09-23 | 1938-02-22 | Pacific Pump Works | Duplex high pressure rotary pump |
| US2601828A (en) * | 1949-02-04 | 1952-07-01 | United Iron Works | Centrifugal pump |
| US2925042A (en) * | 1957-12-09 | 1960-02-16 | Allis Chalmers Mfg Co | Intermediate pressure take-off from barrel type boiler feed pumps |
-
1972
- 1972-11-06 US US00303891A patent/US3788764A/en not_active Expired - Lifetime
-
1973
- 1973-09-24 CA CA181,790A patent/CA983318A/en not_active Expired
- 1973-09-27 AU AU60808/73A patent/AU6080873A/en not_active Expired
- 1973-10-01 GB GB4569973A patent/GB1421807A/en not_active Expired
- 1973-10-03 JP JP11064773A patent/JPS5325122B2/ja not_active Expired
- 1973-10-17 IT IT30225/73A patent/IT995941B/en active
- 1973-10-19 DE DE2352641A patent/DE2352641C3/en not_active Expired
- 1973-11-02 NL NLAANVRAGE7315050,A patent/NL176094C/en not_active IP Right Cessation
- 1973-11-05 BR BR8612/73A patent/BR7308612D0/en unknown
- 1973-11-06 FR FR7339388A patent/FR2205951A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2352641A1 (en) | 1974-05-16 |
| US3788764A (en) | 1974-01-29 |
| CA983318A (en) | 1976-02-10 |
| IT995941B (en) | 1975-11-20 |
| AU6080873A (en) | 1975-03-27 |
| NL176094C (en) | 1985-02-18 |
| FR2205951A5 (en) | 1974-05-31 |
| JPS5325122B2 (en) | 1978-07-25 |
| DE2352641C3 (en) | 1980-06-26 |
| BR7308612D0 (en) | 1974-08-15 |
| JPS4978202A (en) | 1974-07-27 |
| NL7315050A (en) | 1974-05-08 |
| DE2352641B2 (en) | 1979-10-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |