GB1043757A - Improvements in or relating to multiple stage pumps - Google Patents
Improvements in or relating to multiple stage pumpsInfo
- Publication number
- GB1043757A GB1043757A GB37703/64A GB3770364A GB1043757A GB 1043757 A GB1043757 A GB 1043757A GB 37703/64 A GB37703/64 A GB 37703/64A GB 3770364 A GB3770364 A GB 3770364A GB 1043757 A GB1043757 A GB 1043757A
- Authority
- GB
- United Kingdom
- Prior art keywords
- group
- groups
- inlet
- pump
- passage
- 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
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0072—Installation or systems with two or more pumps, wherein the flow path through the stages can be changed, e.g. series-parallel
-
- 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
- F04D1/063—Multi-stage pumps of the vertically split casing type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Multiple-Way Valves (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
1,043,757. Centrifugal pumps. DE LAVAL TURBINE Ind. Sept. 15, 1964 [Oct. 25, 1963], No. 37703/64. Heading F1C. In a multi-stage pump, such as a centrifugal pump, having an inlet 70, Fig. 1, connected to an inlet channel 72 to a first group of pump stages 1 to 3 and an inlet channel 74 to a second group of pump stages 4 to 6, and a passage 48 connecting the discharge of the first group with the suction of the second group, valve means 92, 94 may be adjusted to a position in which the flow through either the inlet channel 74 or the passage 48 is blocked. The valve members 92, 94 are adjusted by means of a handle 102 to a position, shown in full lines, wherein the two groups are connected in series, or to a position, shown in dash lines, wherein the groups are connected in parallel. With the groups connected in series the flow passes from inlet 70 through channel 72, pump stages 1 to 3, ports 62 in a stationary cylinder 46, passage 48, stages 4 to 6 and passages 49, Fig. 3, into discharge chambers 50 having four outlets of which only two 84, 86 are shown. With the groups connected in parallel the flow at the inlet 70 divides and passes through channels 72, 74 to the first and second groups respectively, and is discharged from the first group into the chambers 50 via ports 62, the interior of cylinder 46 and ports 64, and from the second group via passages 49.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US318866A US3232235A (en) | 1963-10-25 | 1963-10-25 | Pump |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1043757A true GB1043757A (en) | 1966-09-28 |
Family
ID=23239880
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB37703/64A Expired GB1043757A (en) | 1963-10-25 | 1964-09-15 | Improvements in or relating to multiple stage pumps |
Country Status (5)
Country | Link |
---|---|
US (1) | US3232235A (en) |
CH (1) | CH426497A (en) |
DE (1) | DE1528742B1 (en) |
GB (1) | GB1043757A (en) |
NL (1) | NL6411968A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH669979A5 (en) * | 1986-04-30 | 1989-04-28 | Sulzer Ag | |
ITFI20120272A1 (en) | 2012-12-05 | 2014-06-06 | Nuovo Pignone Srl | "BACK-TO-BACK CENTRIFUGAL PUMP" |
ITUB20153032A1 (en) * | 2015-08-10 | 2017-02-10 | Nuovo Pignone Tecnologie Srl | CENTRIFUGAL 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 |
EP3929445A1 (en) * | 2020-06-22 | 2021-12-29 | Grundfos Holding A/S | Centrifugal pump device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE295133C (en) * | ||||
DE275292C (en) * | ||||
DE340447C (en) * | 1920-07-04 | 1921-09-15 | Sulzer Ag | Multi-stage centrifugal pump in which the stages can be switched individually or in groups, either in parallel or in series |
FR554326A (en) * | 1922-07-21 | 1923-06-08 | Rateau Sa | Device for placing the pump wheels in series or in parallel |
DE460986C (en) * | 1926-02-20 | 1928-06-09 | Walter Kropf | Multi-stage centrifugal pump, in which switching stages consisting of at least one impeller each can be switched one behind the other or in parallel by means of a switching element arranged outside the circumference of the wheel body |
FR873127A (en) * | 1941-06-17 | 1942-06-30 | Condensation Application Mec | Centrifugal pump with two wheels that can be put, at will, in parallel or in series |
-
1963
- 1963-10-25 US US318866A patent/US3232235A/en not_active Expired - Lifetime
-
1964
- 1964-09-15 GB GB37703/64A patent/GB1043757A/en not_active Expired
- 1964-10-14 NL NL6411968A patent/NL6411968A/xx unknown
- 1964-10-21 DE DE19641528742 patent/DE1528742B1/en not_active Withdrawn
- 1964-10-23 CH CH1374564A patent/CH426497A/en unknown
Also Published As
Publication number | Publication date |
---|---|
NL6411968A (en) | 1965-04-26 |
DE1528742B1 (en) | 1969-09-11 |
US3232235A (en) | 1966-02-01 |
CH426497A (en) | 1966-12-15 |
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