US20070248469A1 - Shallow-Well Pump with Interchangeable Nozzle - Google Patents
Shallow-Well Pump with Interchangeable Nozzle Download PDFInfo
- Publication number
- US20070248469A1 US20070248469A1 US11/738,627 US73862707A US2007248469A1 US 20070248469 A1 US20070248469 A1 US 20070248469A1 US 73862707 A US73862707 A US 73862707A US 2007248469 A1 US2007248469 A1 US 2007248469A1
- Authority
- US
- United States
- Prior art keywords
- pump
- nozzle
- impeller
- jet pump
- nozzles
- 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.)
- Abandoned
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/004—Priming of not self-priming pumps
- F04D9/005—Priming of not self-priming pumps by adducting or recycling liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
- F04F5/46—Arrangements of nozzles
Definitions
- the present invention relates to shallow well jet pumps.
- Shallow-well jet pumps make up a large number of centrifugal pumps sold in the water systems market today. They are a centrifugal type pump used for moving water in many different applications. Some of these applications include pumping water from a submersible well, transferring water for irrigation purposes, or boosting city water pressure.
- Jet pumps are mounted above the well and draw the water up from the well through suction created by the pump's rotating impeller.
- a jet pump 10 creates greater suction by the use of a nozzle/venturi combination.
- the pump 10 is powered by an electric motor 12 that rotationally drives an impeller 14 consisting of many radial vanes.
- the impeller 14 moves water from the well through a narrow orifice, or nozzle, 16 mounted in a housing 18 in front of the impeller 14 .
- This constriction at the nozzle 16 causes the speed of the moving water to increase, much like the nozzle on a garden hose.
- a partial vacuum is created that sucks additional water from the well.
- a venturi tube 20 Directly behind the nozzle 16 is a venturi tube 20 that gradually increases in diameter.
- the function of the tube 20 is to slow down the velocity of the water and increase the pressure.
- the combined pressure of the re-circulated, pressurized water is combined with the water being drawn into the impeller 14 , providing additional suction pressure.
- the relationship between the size and diameter of the nozzle/venturi combination determines the specific operating characteristics of the pump. In other words, a shallow well jet pump uses water to draw water.
- Jet pumps are typically manufactured and sold based on their respective horsepower rating.
- a typical shallow well jet pump will be offered in various horsepower ratings from 1 ⁇ 3 HP to 2 HP. Every respective jet pump will have what is called a performance curve.
- the performance curve is a chart that plots the pressure a pump generates against the flow at that same point. It is known that any one jet pump will create only one unique performance curve.
- a shallow well jet nozzle arrangement is provided that will allow an end user to easily change the operating characteristics of a pump.
- every jet pump will have only one performance curve associated with it. This is because both the nozzle and venturi tube (the heart of the jet pump) have a specific size and orientation and are both sealed inside the pump case.
- this pump there are many uses and applications for this one type of pump.
- the user may want to use this pump to pump water out of a well that has a static water level of 25 feet.
- the user would want the pump to have a relatively steeper curve, i.e., more pressure and less flow.
- the user may also buy this pump to boost incoming city water pressure. It is typical in this application to use a pump that has a relatively shallow pump curve, i.e., less pressure and more flow.
- the present invention is provided to solve these and other problems.
- FIG. 1 is a side view of one embodiment of the invention, shown with a partial cutaway portion to permit illustration of a nozzle.
- FIG. 2 is a sectional view of the embodiment of FIG. 1 .
- FIG. 3 is a further sectional view of the embodiment of FIG. 1 .
- One aspect of this invention is to manufacture a shallow well jet pump 10 that has a simple, externally accessible, user-changeable nozzle system.
- the jet pump 10 comprises an impeller 14 , a fluid inlet port 15 , a venturi tube 20 having an inlet opening 20 a and an outlet opening 20 b.
- the venturi tube 20 is disposed between the fluid inlet port 15 and the impeller 14 .
- the jet pump 10 further includes a fluid outlet port 22 , a pump cavity 24 disposed between the impeller 14 and the fluid outlet port 22 , a return cavity 26 , and an externally accessible retaining system 28 disposed between the return cavity 26 and the venturi tube 20 .
- the retaining system 28 is adapted to receive any of a plurality of nozzles 16 of differing orifice dimensions.
- One nozzle can be removed and another nozzle installed without disassembly of the pump 10 and/or any piping (not shown) associated with the pump 10 .
- Each of the plurality of nozzles 16 provides a pump output according to one of a respective plurality of pump performance curves.
- the retaining system 28 is threaded to receive cooperatively threaded nozzles 16 .
- the jet pump 10 includes a nozzle access hole 30 to permit access for removing and installing the respective nozzles 16 .
- the jet pump 10 further includes a removable plug 32 for removably plugging the nozzle access hole 30 .
- the nozzle 16 has a configuration allowing it to be interchanged with a different size nozzle without disassembly of the pump 10 . If the nozzle 16 is changed from a standard diameter orifice to a second nozzle 16 ′ having a larger diameter, the performance curve would become steeper. This would lend itself to be a better performing pump for someone drawing water from a deeper well. If the nozzle 16 is changed from a standard diameter orifice to a smaller diameter, the performance curve would become shallower. This would lend itself to be a better performing pump for someone boosting city water pressure.
- the end user will be able to purchase a pump that can be easily modified to meet their specific application.
- the jet pump 10 can be supplied with one standard nozzle installed and a plurality of others of a different size in the pump box.
- the nozzle 16 includes an internal drive so that it can easily be removed and replaced with a tool having a conventional toolhead (i.e., allen, star, philips, or the like) without dismantling the pump 10 .
- a conventional toolhead i.e., allen, star, philips, or the like
- the fact that the nozzle 16 has an internal drive for ease of installation and removal is another unique feature of this pump.
- the nozzle 16 could have an external drive.
- the nozzle 16 could be retained such as by a snap ring, a press fit, an adhesive, or the lbike.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Jet Pumps And Other Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A jet pump for pumping fluids is disclosed. The jet pump comprises an impeller, a fluid inlet port and a venturi tube having an inlet opening and an outlet opening. The venturi tube is disposed between the fluid inlet port and the impeller. The jet pump further comprises a fluid outlet port, a pump cavity disposed between the impeller and the fluid outlet port, a return cavity and an externally accessible retaining system disposed between the return cavity and the venturi tube. The retaining system is adapted to receive any of a plurality of nozzles of differing orifice dimensions to provide pump outputs according to a respective plurality of pump performance curves.
Description
- This application claims priority of U.S. provisional patent application Ser. No. 60/795,213, filed Apr. 25, 2006.
- The present invention relates to shallow well jet pumps.
- Shallow-well jet pumps make up a large number of centrifugal pumps sold in the water systems market today. They are a centrifugal type pump used for moving water in many different applications. Some of these applications include pumping water from a submersible well, transferring water for irrigation purposes, or boosting city water pressure.
- The most common pump for a shallow well (a well with up to 25′ depth to water) is a jet pump. Jet pumps are mounted above the well and draw the water up from the well through suction created by the pump's rotating impeller.
- As illustrated in the Figures, a
jet pump 10 creates greater suction by the use of a nozzle/venturi combination. Thepump 10 is powered by anelectric motor 12 that rotationally drives animpeller 14 consisting of many radial vanes. Theimpeller 14 moves water from the well through a narrow orifice, or nozzle, 16 mounted in ahousing 18 in front of theimpeller 14. This constriction at thenozzle 16 causes the speed of the moving water to increase, much like the nozzle on a garden hose. As the water leaves thenozzle 16, a partial vacuum is created that sucks additional water from the well. Directly behind thenozzle 16 is aventuri tube 20 that gradually increases in diameter. The function of thetube 20 is to slow down the velocity of the water and increase the pressure. The combined pressure of the re-circulated, pressurized water is combined with the water being drawn into theimpeller 14, providing additional suction pressure. The relationship between the size and diameter of the nozzle/venturi combination determines the specific operating characteristics of the pump. In other words, a shallow well jet pump uses water to draw water. - Jet pumps are typically manufactured and sold based on their respective horsepower rating. A typical shallow well jet pump will be offered in various horsepower ratings from ⅓ HP to 2 HP. Every respective jet pump will have what is called a performance curve. The performance curve is a chart that plots the pressure a pump generates against the flow at that same point. It is known that any one jet pump will create only one unique performance curve.
- According to the present invention, a shallow well jet nozzle arrangement is provided that will allow an end user to easily change the operating characteristics of a pump. As discussed above, every jet pump will have only one performance curve associated with it. This is because both the nozzle and venturi tube (the heart of the jet pump) have a specific size and orientation and are both sealed inside the pump case.
- As discussed above, there are many uses and applications for this one type of pump. The user may want to use this pump to pump water out of a well that has a static water level of 25 feet. In this application, the user would want the pump to have a relatively steeper curve, i.e., more pressure and less flow. The user may also buy this pump to boost incoming city water pressure. It is typical in this application to use a pump that has a relatively shallow pump curve, i.e., less pressure and more flow.
- The present invention is provided to solve these and other problems.
-
FIG. 1 is a side view of one embodiment of the invention, shown with a partial cutaway portion to permit illustration of a nozzle. -
FIG. 2 is a sectional view of the embodiment ofFIG. 1 . -
FIG. 3 is a further sectional view of the embodiment ofFIG. 1 . - While this invention is susceptible of embodiment in many different forms, there will be described herein in detail, specific embodiments thereof with the understanding that the present disclosure is to be considered as an exemplification of the principles of the invention and is not intended to limit the invention to the specific embodiments illustrated.
- One aspect of this invention is to manufacture a shallow
well jet pump 10 that has a simple, externally accessible, user-changeable nozzle system. - The
jet pump 10 comprises animpeller 14, afluid inlet port 15, aventuri tube 20 having an inlet opening 20 a and an outlet opening 20 b. Theventuri tube 20 is disposed between thefluid inlet port 15 and theimpeller 14. Thejet pump 10 further includes afluid outlet port 22, apump cavity 24 disposed between theimpeller 14 and thefluid outlet port 22, areturn cavity 26, and an externallyaccessible retaining system 28 disposed between thereturn cavity 26 and theventuri tube 20. Theretaining system 28 is adapted to receive any of a plurality ofnozzles 16 of differing orifice dimensions. One nozzle can be removed and another nozzle installed without disassembly of thepump 10 and/or any piping (not shown) associated with thepump 10. Each of the plurality ofnozzles 16 provides a pump output according to one of a respective plurality of pump performance curves. - In a preferred embodiment, the
retaining system 28 is threaded to receive cooperatively threadednozzles 16. Additionally thejet pump 10 includes anozzle access hole 30 to permit access for removing and installing therespective nozzles 16. Thejet pump 10 further includes aremovable plug 32 for removably plugging thenozzle access hole 30. - The
nozzle 16 has a configuration allowing it to be interchanged with a different size nozzle without disassembly of thepump 10. If thenozzle 16 is changed from a standard diameter orifice to asecond nozzle 16′ having a larger diameter, the performance curve would become steeper. This would lend itself to be a better performing pump for someone drawing water from a deeper well. If thenozzle 16 is changed from a standard diameter orifice to a smaller diameter, the performance curve would become shallower. This would lend itself to be a better performing pump for someone boosting city water pressure. - The end user will be able to purchase a pump that can be easily modified to meet their specific application. The
jet pump 10 can be supplied with one standard nozzle installed and a plurality of others of a different size in the pump box. Thenozzle 16 includes an internal drive so that it can easily be removed and replaced with a tool having a conventional toolhead (i.e., allen, star, philips, or the like) without dismantling thepump 10. The fact that thenozzle 16 has an internal drive for ease of installation and removal is another unique feature of this pump. Alternatively thenozzle 16 could have an external drive. - While the preferred embodiment contemplates a threaded
retaining system 28, thenozzle 16 could be retained such as by a snap ring, a press fit, an adhesive, or the lbike. - It is also contemplated that there could be a single, adjustable nozzle in the same case.
- From the foregoing, it will be observed that numerous variations and modifications may be effected without departing from the spirit and scope of the invention. It is to be understood that no limitation with respect to the specific apparatus illustrated herein is intended or should be inferred. It is, of course, intended to cover by the appended claims all such modifications as fall within the scope of the claims.
Claims (16)
1. A jet pump for pumping fluids, the jet pump comprising:
an impeller;
a fluid inlet port;
a venturi tube having an inlet opening and an outlet opening, the venturi tube disposed between the fluid inlet port and the impeller;
a fluid outlet port;
a pump cavity disposed between the impeller and the fluid outlet port;
a return cavity; and
an externally accessible retaining system disposed between the return cavity and the venturi tube, the retaining system adapted to permit removal and replacement of any of a plurality of nozzles of differing orifice dimensions, without disassembly of the pump or associated piping, to provide pump outputs according to a respective plurality of pump performance curves.
2. The jet pump of claim 1 wherein the retaining system is threaded to receive cooperatively threaded nozzles.
3. The jet pump of claim 1 including a nozzle access hole to permit access for removing and installing the respective nozzles.
4. The jet pump of claim 3 including a removable plug for plugging the nozzle access hole.
5. The jet pump of claim 1 wherein the nozzle is configured to receive a toolhead to assist in the installation and removal of the nozzle.
6. A system for providing a jet pump having a pump output according to a plurality of performance curves comprising:
a jet pump including an impeller, a fluid inlet port, a venturi tube having an inlet opening and an outlet opening, the venturi tube disposed between the fluid inlet port and the impeller, a fluid outlet port, a pump cavity disposed between the impeller and the fluid outlet port, a return cavity; and an externally accessible retaining system disposed between the return cavity and the venturi tube, the retaining system adapted to receive a nozzle; and
a plurality of nozzles of differing orifice dimensions and adapted to be removably retained by the retaining system, each of the nozzles to provide the pump outputs according to the respective plurality of pump performance curves, wherein the nozzles are externally accessible to permit removal and replacement without disassembly of the pump or associated piping.
7. The system of claim 6 wherein the retaining system is threaded to receive cooperatively threaded nozzles.
8. The system of claim 1 , wherein the jet pump includes a nozzle access hole to permit access for removing and installing the respective nozzles.
9. The system claim 8 including a removable plug for plugging the access hole.
10. The jet pump of claim 6 wherein the nozzle is configured to receive a toolhead to assist in the installation and removal of the nozzle.
11. A method for providing a jet pump having a pump output according to a plurality of performance curves comprising:
providing a jet pump including an impeller, a fluid inlet port, a venturi tube having an inlet opening and an outlet opening, the venturi tube disposed between the fluid inlet port and the impeller, a fluid outlet port, a pump cavity disposed between the impeller and the fluid outlet port, a return cavity; and an externally accessible retaining system disposed between the return cavity and the venturi tube, the retaining system adapted to receive a nozzle; and
providing a plurality of nozzles of differing orifice dimensions and adapted to be removably retained by the retaining system, each of the nozzles to provide the pump outputs according to the respective plurality of pump performance curves, wherein the nozzles are externally accessible to permit removal and replacement without disassembly of the pump or associated piping.
12. The method of claim 11 wherein the retaining system is threaded to receive cooperatively threaded nozzles.
13. The method of claim 1 , wherein the jet pump includes a nozzle access hole to permit access for removing and installing the respective nozzles.
14. The system claim 13 including a removable plug for plugging the access hole.
15. The jet pump of claim 11 wherein the nozzle is configured to receive a toolhead to assist in the installation and removal of the nozzle.
16. A jet pump for pumping fluids, the jet pump comprising:
an impeller;
a fluid inlet port;
a venturi tube having an inlet opening and an outlet opening, the venturi tube disposed between the fluid inlet port and the impeller;
a fluid outlet port;
a pump cavity disposed between the impeller and the fluid outlet port;
a return cavity; and
an externally accessible nozzle having a dimensionally adjustable orifice to provide pump outputs according to a respective plurality of pump performance curves.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/738,627 US20070248469A1 (en) | 2006-04-25 | 2007-04-23 | Shallow-Well Pump with Interchangeable Nozzle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US79521306P | 2006-04-25 | 2006-04-25 | |
US11/738,627 US20070248469A1 (en) | 2006-04-25 | 2007-04-23 | Shallow-Well Pump with Interchangeable Nozzle |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070248469A1 true US20070248469A1 (en) | 2007-10-25 |
Family
ID=38619632
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/738,627 Abandoned US20070248469A1 (en) | 2006-04-25 | 2007-04-23 | Shallow-Well Pump with Interchangeable Nozzle |
Country Status (1)
Country | Link |
---|---|
US (1) | US20070248469A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100092310A1 (en) * | 2008-10-14 | 2010-04-15 | Ford Global Technologies Llc | Vehicle Transmission with Jet Pump |
US20100290924A1 (en) * | 2009-05-15 | 2010-11-18 | Becker Lee J | Nozzle Insert for Boosting Pump Inlet Pressure |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3395647A (en) * | 1966-11-21 | 1968-08-06 | Atomic Energy Commission Usa | Jet pump |
US4505645A (en) * | 1981-02-13 | 1985-03-19 | Laguilharre Pierre R | Process and installation for rapidly creating a high vacuum using a single stage liquid ring pump |
US5088896A (en) * | 1990-06-08 | 1992-02-18 | The Marley Company | Jet pump with rotatable venturi cartridge |
US5954481A (en) * | 1996-03-14 | 1999-09-21 | Itt Manufacturing Enterprises Inc. | Jet pump |
US6955526B2 (en) * | 2002-03-19 | 2005-10-18 | Nihon Pisco Co., Ltd. | Vacuum generator with flow switching means for varying suction capacity through a plurality of nozzles |
-
2007
- 2007-04-23 US US11/738,627 patent/US20070248469A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3395647A (en) * | 1966-11-21 | 1968-08-06 | Atomic Energy Commission Usa | Jet pump |
US4505645A (en) * | 1981-02-13 | 1985-03-19 | Laguilharre Pierre R | Process and installation for rapidly creating a high vacuum using a single stage liquid ring pump |
US5088896A (en) * | 1990-06-08 | 1992-02-18 | The Marley Company | Jet pump with rotatable venturi cartridge |
US5954481A (en) * | 1996-03-14 | 1999-09-21 | Itt Manufacturing Enterprises Inc. | Jet pump |
US6955526B2 (en) * | 2002-03-19 | 2005-10-18 | Nihon Pisco Co., Ltd. | Vacuum generator with flow switching means for varying suction capacity through a plurality of nozzles |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100092310A1 (en) * | 2008-10-14 | 2010-04-15 | Ford Global Technologies Llc | Vehicle Transmission with Jet Pump |
US8047807B2 (en) | 2008-10-14 | 2011-11-01 | Ford Global Technologies, Llc | Vehicle transmission with jet pump |
DE102009045561B4 (en) | 2008-10-14 | 2023-08-10 | Ford Global Technologies, Llc | Control system and vehicle transmission with jet pump |
US20100290924A1 (en) * | 2009-05-15 | 2010-11-18 | Becker Lee J | Nozzle Insert for Boosting Pump Inlet Pressure |
US8926292B2 (en) | 2009-05-15 | 2015-01-06 | Ford Global Technologies, Llc | Nozzle insert for boosting pump inlet pressure |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10495102B2 (en) | Impeller and pump using the impeller | |
KR100837562B1 (en) | For both underwater-pump and aerator | |
WO2010030802A3 (en) | High-efficiency, multi-stage centrifugal pump and method of assembly | |
ZA200900924B (en) | Delivery pump | |
WO2005057016A3 (en) | High performance inducer | |
WO2013144623A8 (en) | Froth pump and method | |
US20070248461A1 (en) | Fan generating medium wind pressure and air supply | |
TWI256441B (en) | Axial flow fan | |
US20070248469A1 (en) | Shallow-Well Pump with Interchangeable Nozzle | |
US7837430B2 (en) | Rotary blower and aspirator having a modifiable conformation | |
ATE518060T1 (en) | SELF-PRIMING CENTRIFUGAL JET PUMP | |
WO2002057635A3 (en) | Centrifugal pump with facilitated self-priming | |
CN104763641B (en) | A kind of rotational flow self-priming pump | |
CN107407283A (en) | Self-priming pump | |
EP3362687B1 (en) | Pumps | |
US2677327A (en) | Centrifugal pump construction | |
JP2006500497A5 (en) | ||
CA2382739A1 (en) | Pressurized bearing system for submersible motor | |
AU2003295004A1 (en) | Electric motor pump for swimming pool maintenance | |
EP1505301A3 (en) | Self-priming centrifugal pump | |
WO2005031162A3 (en) | Rotary disc pump | |
KR200203022Y1 (en) | Pump | |
KR200216272Y1 (en) | multi-stage, high-pressure water pump of a centrifugal type | |
CN204572472U (en) | A kind of rotational flow self-priming pump | |
CN2816422Y (en) | Rotary-nail type self-suction pump |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: FRANKLIN ELECTRIC CO., INC., INDIANA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:VOLK, JAMES J.;SCHLOSSER, KRAIG;REEL/FRAME:019195/0072 Effective date: 20070423 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |