US1949796A - Pump or impeller - Google Patents
Pump or impeller Download PDFInfo
- Publication number
- US1949796A US1949796A US665767A US66576733A US1949796A US 1949796 A US1949796 A US 1949796A US 665767 A US665767 A US 665767A US 66576733 A US66576733 A US 66576733A US 1949796 A US1949796 A US 1949796A
- Authority
- US
- United States
- Prior art keywords
- pump
- rotor
- electromotor
- shaft
- stator
- 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 - Lifetime
Links
- 239000007788 liquid Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009189 diving Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
Images
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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0673—Units comprising pumps and their driving means the pump being electrically driven the motor being of the inside-out type
Description
March 6, 1934. A. HIMMEL 1,949,796
PUMP OR IMPELLER Filed April 12 [1953 J}: 0612 for: M M KW Patented Mar. 6, 1934 UNITED STATES PUMP on IMPELLER Adolf Himmel, Tubingen-Derendingen, Germany,
assignor to Himmelwerk A.-G., Tubingen, Germany Application April 12, 1933, Serial No. 665,767 In Germany August 29, 1931 4 Claims. (Cl. 103-87) My invention relates to pumps or impellers and more particularly to submersible pumps adapted for use in wells.
It has already been proposed to use for this purpose centrifugal pumps coupled with an electromotor and in such a combination the motor must be protected by special means against the influence of water or other liquids existing in the well. This has been effected by maintaining a pressure above atmospheric in the space in which the motor is arranged by forcing air into it through'a suitable air pipe so that liquid cannot enter. In other systems the motor has been guarded against contact with the liquid by enclosing it in a kind of diving-bell.
My invention relates to the last-mentioned kind of pumps or impellers and it is an object of my invention to improve the construction of these pumps.
It is another object of my invention to simplify this kind of pump and this is accomplished by providing a motor, the rotor of which surrounds the stator, the pump being directly connected to this rotor without the interposition of stufiing boxes, intermediate shafts or bearings. The motor as a whole is protected against the entering of water by a diving-bell. All bearings are arranged in the interior of the bell and are protected against contact with the liquid and with the dirt contained in the liquid.
In the drawing affixed to this specification and forming part thereof an embodiment of my invention is illustrated diagrammatically in axial section by way of example.
Referring to the drawing, 6 is the pump casing, in the lower part of which is arranged the stator 10 of the centrifugal pump. 1 is a hollow stationary shaft extending axially of the casing 6, on the bottom end of the shaft being mounted the stator 8 of the electromotor, which is provided with an exciting winding to which current is supplied by means of connections 9 extending through the hollow shaft 1. The rotor 2 of the electromotor carrying a short-circuited winding, for instance a cage winding, is supported in suitable ball-bearings 12 or the like. The rotor is closed at its bottom end by the rotor 5 of the centrifugal pump. In order that no liquid can enter the rotary portion 2 of the electromotor a stationary diving-bell 4 surrounds the upper portion of the rotor 2, but, if desired, the bell may be extended farther downwardly. This arrangement offers the advantage that, while the pump is in operation, only an insignificant friction exists between the rotor 2 and the liquid in the casing 6. The part 3 of the rotor extends upwardly into the diving-bell 4, encircling the shaft 1. The interior of the rotor 2 communicates with the pressure space of the pump only by way of the narrow interstice provided between the shaft 1 and the extension 3. As appears from the foregoing description, the liquid to be pumped cannot enter the interior of the rotor 2. The height of the pressure space can be easily adapted to the required output without the construction of the pump being substantially altered.
The rotor 5 of the centrifugal pump rotates about the lower bearing 12 on shaft 1. If desired, the pump rotor can be designed in such manner that it also forms the bearing cap. It may be provided with one or a plurality of sets of vanes according to the required output. The casing is connected to the pressure pipe 11 by means of a flange 7. The air within the diving bell can be renewed in any suitable manner well known in the art.
The operation of the device is as follows: In order to drive the pump current is supplied to the stator 8 of the electromotor in such manner that a rotary field is produced which causes the rotor 2 to rotate together with the pump rotor 5. The pump discharges the liquid in the well through casing 6 and pressure pipe 11.
I wish it to be understood that I do not desire to be limited to the exact details of construction shown and described for obvious modifications will occur to a person skilled in the art.
In the claims affixed to this specification no. selection of any particular modification of theinvention is intended to the exclusion of other modifications thereof.
I claim:-
1. A submersible pump comprising a stationary shaft, the stator of an electromotor being fixed on said shaft, the rotor of said electromotor surrounding said stator, a centrifugal pump, the easing of which surrounds said electromotor, the pump rotor being fixed to the bottom end of said electric rotor, and a bell air-tightly fixed to the upper part of said shaft and extending downwardly along and surrounding, said electric rotor.
2. A submersible pump comprising a stationary shaft, the stator of an electromotor being fixed on said shaft, the rotor of said electromotor surrounding said stator, an upwardly directed extension of said rotor surrounding said shaft, a centrifugal pump, the casing of which surrounds said electromotor, the pump rotor being fixed to the bottom end of said electric rotor, and a bell airper part of said shaft and extending downwardly along and surrounding said electric rotor.
4. A submersible pump comprising a stationary shaft, the stator of an electromotor being fixed on said shaft, the rotor of said electromotor surrounding said stator and being closed at its lower end, a centriiugal pump the casing ofwhich surrounds said electromotor, a pump rotor on said electric rotor, and a bell air-tightly fixed on said shaft and surrounding said electric rotor.
ADOLF HIMMEL.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1949796X | 1931-08-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1949796A true US1949796A (en) | 1934-03-06 |
Family
ID=7750913
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US665767A Expired - Lifetime US1949796A (en) | 1931-08-29 | 1933-04-12 | Pump or impeller |
Country Status (1)
Country | Link |
---|---|
US (1) | US1949796A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2935025A (en) * | 1950-09-26 | 1960-05-03 | Tokheim Corp | Liquid fuel pumping apparatus |
EP0023126A1 (en) * | 1979-07-18 | 1981-01-28 | The British Petroleum Company p.l.c. | Electric well pump |
EP0581173A1 (en) * | 1992-07-28 | 1994-02-02 | Licentia Patent-Verwaltungs-GmbH | Fuel supply device |
US5855472A (en) * | 1996-10-25 | 1999-01-05 | Ravitts; Richard B. | Diving bell submersible seal |
US6201327B1 (en) * | 1999-11-17 | 2001-03-13 | Camco International, Inc. | System and method for absorbing the expansion and contraction of internal fluids of a sumergible electric motor |
US20090155100A1 (en) * | 2005-11-10 | 2009-06-18 | Pierburg Gmbh | Fluid pump |
US20110164995A1 (en) * | 2005-11-10 | 2011-07-07 | Pierburg Gmbh | Fluid pump |
US20190120249A1 (en) * | 2017-10-25 | 2019-04-25 | Flowserve Management Company | Modular, multi-stage, integral sealed motor pump with integrally-cooled motors and independently controlled rotor speeds |
US11323003B2 (en) * | 2017-10-25 | 2022-05-03 | Flowserve Management Company | Compact, modular, pump or turbine with integral modular motor or generator and coaxial fluid flow |
-
1933
- 1933-04-12 US US665767A patent/US1949796A/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2935025A (en) * | 1950-09-26 | 1960-05-03 | Tokheim Corp | Liquid fuel pumping apparatus |
EP0023126A1 (en) * | 1979-07-18 | 1981-01-28 | The British Petroleum Company p.l.c. | Electric well pump |
US4413958A (en) * | 1979-07-18 | 1983-11-08 | The British Petroleum Company Limited | Apparatus for installation in wells |
EP0581173A1 (en) * | 1992-07-28 | 1994-02-02 | Licentia Patent-Verwaltungs-GmbH | Fuel supply device |
US5855472A (en) * | 1996-10-25 | 1999-01-05 | Ravitts; Richard B. | Diving bell submersible seal |
US6201327B1 (en) * | 1999-11-17 | 2001-03-13 | Camco International, Inc. | System and method for absorbing the expansion and contraction of internal fluids of a sumergible electric motor |
US20090155100A1 (en) * | 2005-11-10 | 2009-06-18 | Pierburg Gmbh | Fluid pump |
US20110164995A1 (en) * | 2005-11-10 | 2011-07-07 | Pierburg Gmbh | Fluid pump |
US20190120249A1 (en) * | 2017-10-25 | 2019-04-25 | Flowserve Management Company | Modular, multi-stage, integral sealed motor pump with integrally-cooled motors and independently controlled rotor speeds |
US11323003B2 (en) * | 2017-10-25 | 2022-05-03 | Flowserve Management Company | Compact, modular, pump or turbine with integral modular motor or generator and coaxial fluid flow |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2556435A (en) | Means for cooling lubricating oil in submerged motors | |
US2775945A (en) | Sand resistant pump | |
US2319730A (en) | Pump | |
US3267868A (en) | Electric motor with plural cooling paths through the shaft | |
US1909578A (en) | Pump | |
US2315917A (en) | Submergible electric motor for deep well pumps | |
US2784672A (en) | Fluid pump drive | |
US1949796A (en) | Pump or impeller | |
KR950019234A (en) | CAN MODULE PUMP | |
US2470563A (en) | Pump | |
US1632357A (en) | Pump or impeller | |
US1347732A (en) | Combined motor-pump | |
US3661474A (en) | Liquid booster device | |
US2689529A (en) | Submersible pump-motor | |
US3170407A (en) | Motor-pump unit | |
US1363315A (en) | Rotary pump | |
GB1094895A (en) | Improvements in or relating to motor-driven pump units | |
US2460371A (en) | Motor cooling means | |
US1405959A (en) | Pump and motor unit | |
US3195468A (en) | Submersible pump | |
ES351348A1 (en) | Pump | |
US1539195A (en) | Submerged pumping unit | |
US1355755A (en) | Electrically-driven rotary pump | |
US1941313A (en) | Submersible motor | |
US2023017A (en) | Pump unit |