CA2049778A1 - Helical hydraulic pump - Google Patents
Helical hydraulic pumpInfo
- Publication number
- CA2049778A1 CA2049778A1 CA 2049778 CA2049778A CA2049778A1 CA 2049778 A1 CA2049778 A1 CA 2049778A1 CA 2049778 CA2049778 CA 2049778 CA 2049778 A CA2049778 A CA 2049778A CA 2049778 A1 CA2049778 A1 CA 2049778A1
- Authority
- CA
- Canada
- Prior art keywords
- helix
- pump
- tubing
- shaft
- fluid
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B1/00—Engines characterised by fuel-air mixture compression
- F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
- F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
-
- 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
- F05B2250/00—Geometry
- F05B2250/20—Geometry three-dimensional
- F05B2250/25—Geometry three-dimensional helical
Abstract
ABSTRACT
A rotary pump capable of slow movement, for wave power applications.
The pump is a helix formed of tubing whereby when the helix is rotated, the inlet end of the tubing scoops water and an outlet end of the tubing directed along the central longitudinal axis of the helix delivery liquid to a conduit means. The helix of tubing is preferably mounted on a shaft which is turned by ratchet means powered by rocking motion or rise and fall of water due to wave motion.
A rotary pump capable of slow movement, for wave power applications.
The pump is a helix formed of tubing whereby when the helix is rotated, the inlet end of the tubing scoops water and an outlet end of the tubing directed along the central longitudinal axis of the helix delivery liquid to a conduit means. The helix of tubing is preferably mounted on a shaft which is turned by ratchet means powered by rocking motion or rise and fall of water due to wave motion.
Description
049~77~3 HELICAL HYDRAULIC PUMP
This invention relates to an apparatus for using water wave motion and particularly to a wave powered pump.
Power generators of various types have been proposed to convert movement of waves or tides into rotary motion which is used to turn a generator. For example, a tide operated generator is shown in U.S.
Patent 4,541,242 and a ratchet type wave motor is disclosed in U.S.
Patent 2,009,939. However those devices do not provide a simple inexpensive safe dependable pump for use in such applications as pumping bilges of boats left for extended periods of time at moorings.
Known electrical pumps used for this purpose have a tendency to burn out if allowed to run dry if controls are not provided, or if any provided controls fail to operate properly. Other problems include failure of power supply, shorting out of immersed pumps and inability to pump when a reservoir or sump is very shallow.
The pump of this invention is not limited to pumping bilges however: many other uses may be found for a slow moving reliable pump which is self priming, and requires no one way vaIves. A larger version of the pump of this invention is suitable for such applications as irrigation. It will be appreciated that a continuous supply of water .
from a dependable wave powered pump could replace an intermittent high flow rate gasoline engine pump or a pump driven by an electric motor. Furthermore, the pump of this invention is not limited to puinping water, and can be used for any low viscosity liquid.
It is therefore an object of the present invention to provide a i~ pump capable of being powered by water motion, wave motion or other slow or intermittent power sources.
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This invention relates to an apparatus for using water wave motion and particularly to a wave powered pump.
Power generators of various types have been proposed to convert movement of waves or tides into rotary motion which is used to turn a generator. For example, a tide operated generator is shown in U.S.
Patent 4,541,242 and a ratchet type wave motor is disclosed in U.S.
Patent 2,009,939. However those devices do not provide a simple inexpensive safe dependable pump for use in such applications as pumping bilges of boats left for extended periods of time at moorings.
Known electrical pumps used for this purpose have a tendency to burn out if allowed to run dry if controls are not provided, or if any provided controls fail to operate properly. Other problems include failure of power supply, shorting out of immersed pumps and inability to pump when a reservoir or sump is very shallow.
The pump of this invention is not limited to pumping bilges however: many other uses may be found for a slow moving reliable pump which is self priming, and requires no one way vaIves. A larger version of the pump of this invention is suitable for such applications as irrigation. It will be appreciated that a continuous supply of water .
from a dependable wave powered pump could replace an intermittent high flow rate gasoline engine pump or a pump driven by an electric motor. Furthermore, the pump of this invention is not limited to puinping water, and can be used for any low viscosity liquid.
It is therefore an object of the present invention to provide a i~ pump capable of being powered by water motion, wave motion or other slow or intermittent power sources.
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2~ g77 Another object of the present invention i9 the provision of a pump which will move fluids through a conduit without the use of valves.
Another object is the provision of a pump which i8 capable of being self priming.
.
A still further object is the provision of a pump which has few moving parts and is therefore simple and inexpensive to construct, easy to maintain, and reliable in operation.
Accordingly the present invention provides A fluid pump adapted to be rotated by wave or water power through the use of ratchet means, said fluid pump comprising:
- a conduit in the form of a helix support means for said helix rotationally supporting said helix for rotary motion about its longitudinal axis, an inlet means at a first end of said helix for scooping fluid, and an outlet means at a second end of said helix aligned with said shaft; and :
The invention further provides ;~ ~ a fluid pump wherein said helix is formed of tubing and said outlet means comprises a rotary seal between an end of said heli~
and outlet conduit means; and wherein said inlet is an open-ended semi-::
circular coil of said heli~.
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; ~ ~In the accompanying drawings which illustrate preferred embodiments of this invention:
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Figure 1 is a perspective view of a pump in accordance with this ~; invention;
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Another object is the provision of a pump which i8 capable of being self priming.
.
A still further object is the provision of a pump which has few moving parts and is therefore simple and inexpensive to construct, easy to maintain, and reliable in operation.
Accordingly the present invention provides A fluid pump adapted to be rotated by wave or water power through the use of ratchet means, said fluid pump comprising:
- a conduit in the form of a helix support means for said helix rotationally supporting said helix for rotary motion about its longitudinal axis, an inlet means at a first end of said helix for scooping fluid, and an outlet means at a second end of said helix aligned with said shaft; and :
The invention further provides ;~ ~ a fluid pump wherein said helix is formed of tubing and said outlet means comprises a rotary seal between an end of said heli~
and outlet conduit means; and wherein said inlet is an open-ended semi-::
circular coil of said heli~.
~:
; ~ ~In the accompanying drawings which illustrate preferred embodiments of this invention:
.~
Figure 1 is a perspective view of a pump in accordance with this ~; invention;
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-3 -Figure 2 is a top plan view of the pump of Figure 1 mounted in a housing;
Figure 3 iB a side elevational view of the pump of Figure 1 immersed in liquid; and Figure 4 is a part sectional enlarged view of the inlet and outlet means of the pump.
Re~erring now in detail to the drawings, the pump shown generally at 10 in Figure 1 has a helix 12 constructed of tubing 14 on support means, or spacers 16 for mounting the helix 12 on a suitable shaft 18 extending through the longitudinal central axis of the helix 12.
The helix is mounted for rotation on suitable supports 20 as shown in Figure 1 or in a housing 24 as shown in Figure 2.
In one ~orm this tubing 14 is wrapped on a mandrel 30 indicated :~ ~ by broken lines in Figure 1. In this embodiment spacers 16 are in the ~: form of end caps 32 (one of which is shown in Figure 1) having central hubs 34 through which the shaft 18 extends.
~:As shown in Figure 4 at least an end portion 36 of the shaft 18 is :~ ~hollow so that an outlet end 38 of the helix 14 can be in communication with the shaft 18 as through a suitable aperture 40 in the sha~t 18. The end portion 36 of the shaft 18 is received in a conventional rotating shaft seal 42 having an o-ring or packing bearing on the shaft to provide substantially fluid-tight connection between the hollow rotating shaft 18 and an outlet conduit 46.
. ~Rotating motion of the pump 10 is provided by at least one ratchet mechanism S0 secured to the shaft 18. The ratchet means 50 has an arm 52 and a float 54 at the end of the arm 52. Movement of the arm .::
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.. . .
77~3 _d~ _ 52 causes rotary motion of the shaft 18, in this case counterclockwise motion as viewed in Figure 1 and as indicated by the arrows in Figure 4.
It may not be esserltial to provide a rotating joint between the tubing and an outlet conduit for some applications particularly where flexible tubing is used for the outlet or the entire helix. The flexilble tubing will rotate and can be guided within a conduit or the like, not shown, similar to conduit 46. For applications such as irrigation the outlet end would then rotate within the guide and deliver liquid at the end of the guide.
.
In operation the pump is mounted in an environment where there i9 relative motion between the arms 52 and the shaft 18. This motion is transmitted through the ratchet(s) 50, and causes the shaft to rotate.
Liquid will be scooped by the inlet portion 22 of the helix 12. Further motion, in this case counter clockwise motion as viewed in Figure 4 causes the fluid to move through the tubing helix 14. It will be noted ", that the pump 10 is partially submerged so that air also enters. As the helix 12 continues to rotate liquid moves from the inlet end of the helix to the outlet end and will travel up the conduit 46.
.:
.
In order to maintain the pump 10 in a partially submerged position the support 20 or housing may be allowed to float while being tethered, so that relative motion of the ratchet means 50 will turn the shaft 18 without rocking or raising the support 20 or 24. One such means for adjustably mounting the pump is retaining screws 56 which allow vertical movement of the support 20.
Alternatively, the outlet 46 can be slidably located in a suitable ' housing, not shown, thus also permitting vertical movement as the liquid level changes.
Although the embodiment of the pump 10 described above is particularly suited to wave motion type drive means, it will be understood that the ratchet means could be adapted to tidal power and thus the ratchet means would provide the required rotary motion of the pump as the tide rises and falls. Pumping sea water to evaporation beds could be carried out in this manner. Furthermore, the pump of this invention can be driven by electrical means such a solenoid to provide a slow or measured intermittent supply of a liquid or slurry.
Various changes in the dimensions to accommodate a variety of applications will occur to those skilled in the art. Such variations are believed to be within the scope of the present invention. E`or example, a small bilge pump having a helix formed of 15 turns of 1/4 inch tubing on a 1-3/4 diameter core will raise water about 18 inches. A larger model of the pump constructed of 7 turns of 1-1/4 inch tubing coiled to provide a helix 11 inches in diameter raises water over 5 feet in the outlet conduit.
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Figure 3 iB a side elevational view of the pump of Figure 1 immersed in liquid; and Figure 4 is a part sectional enlarged view of the inlet and outlet means of the pump.
Re~erring now in detail to the drawings, the pump shown generally at 10 in Figure 1 has a helix 12 constructed of tubing 14 on support means, or spacers 16 for mounting the helix 12 on a suitable shaft 18 extending through the longitudinal central axis of the helix 12.
The helix is mounted for rotation on suitable supports 20 as shown in Figure 1 or in a housing 24 as shown in Figure 2.
In one ~orm this tubing 14 is wrapped on a mandrel 30 indicated :~ ~ by broken lines in Figure 1. In this embodiment spacers 16 are in the ~: form of end caps 32 (one of which is shown in Figure 1) having central hubs 34 through which the shaft 18 extends.
~:As shown in Figure 4 at least an end portion 36 of the shaft 18 is :~ ~hollow so that an outlet end 38 of the helix 14 can be in communication with the shaft 18 as through a suitable aperture 40 in the sha~t 18. The end portion 36 of the shaft 18 is received in a conventional rotating shaft seal 42 having an o-ring or packing bearing on the shaft to provide substantially fluid-tight connection between the hollow rotating shaft 18 and an outlet conduit 46.
. ~Rotating motion of the pump 10 is provided by at least one ratchet mechanism S0 secured to the shaft 18. The ratchet means 50 has an arm 52 and a float 54 at the end of the arm 52. Movement of the arm .::
~ ~ ' ` `' " ' .,~ ....
.. . .
77~3 _d~ _ 52 causes rotary motion of the shaft 18, in this case counterclockwise motion as viewed in Figure 1 and as indicated by the arrows in Figure 4.
It may not be esserltial to provide a rotating joint between the tubing and an outlet conduit for some applications particularly where flexible tubing is used for the outlet or the entire helix. The flexilble tubing will rotate and can be guided within a conduit or the like, not shown, similar to conduit 46. For applications such as irrigation the outlet end would then rotate within the guide and deliver liquid at the end of the guide.
.
In operation the pump is mounted in an environment where there i9 relative motion between the arms 52 and the shaft 18. This motion is transmitted through the ratchet(s) 50, and causes the shaft to rotate.
Liquid will be scooped by the inlet portion 22 of the helix 12. Further motion, in this case counter clockwise motion as viewed in Figure 4 causes the fluid to move through the tubing helix 14. It will be noted ", that the pump 10 is partially submerged so that air also enters. As the helix 12 continues to rotate liquid moves from the inlet end of the helix to the outlet end and will travel up the conduit 46.
.:
.
In order to maintain the pump 10 in a partially submerged position the support 20 or housing may be allowed to float while being tethered, so that relative motion of the ratchet means 50 will turn the shaft 18 without rocking or raising the support 20 or 24. One such means for adjustably mounting the pump is retaining screws 56 which allow vertical movement of the support 20.
Alternatively, the outlet 46 can be slidably located in a suitable ' housing, not shown, thus also permitting vertical movement as the liquid level changes.
Although the embodiment of the pump 10 described above is particularly suited to wave motion type drive means, it will be understood that the ratchet means could be adapted to tidal power and thus the ratchet means would provide the required rotary motion of the pump as the tide rises and falls. Pumping sea water to evaporation beds could be carried out in this manner. Furthermore, the pump of this invention can be driven by electrical means such a solenoid to provide a slow or measured intermittent supply of a liquid or slurry.
Various changes in the dimensions to accommodate a variety of applications will occur to those skilled in the art. Such variations are believed to be within the scope of the present invention. E`or example, a small bilge pump having a helix formed of 15 turns of 1/4 inch tubing on a 1-3/4 diameter core will raise water about 18 inches. A larger model of the pump constructed of 7 turns of 1-1/4 inch tubing coiled to provide a helix 11 inches in diameter raises water over 5 feet in the outlet conduit.
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Claims (6)
1. A fluid pump a. a conduit in the form of a helix to provide a closed path;
b. support means for said helix rotationally supporting said helix for rotary motion about its longitudinal axis;
c. an inlet means on one end of said helix for scooping fluid on rotation of the helix; and d. an outlet means on the other end of the said helix, aligned with said shaft, whereby on being driven by means constructed and arranged to rotate the helix fluid enters the inlet means and moves through said helix to said outlet.
b. support means for said helix rotationally supporting said helix for rotary motion about its longitudinal axis;
c. an inlet means on one end of said helix for scooping fluid on rotation of the helix; and d. an outlet means on the other end of the said helix, aligned with said shaft, whereby on being driven by means constructed and arranged to rotate the helix fluid enters the inlet means and moves through said helix to said outlet.
2. A fluid pump as claimed in Claim 1 wherein said outlet means includes a rotary coupling and seal between an end of said helix and conduit means;
3. A fluid pump as claimed in Claim 1 wherein said inlet is an open end of a semi-circular coil of said helix; and
4. A fluid pump as claimed in Claim 1 wherein rotary motion is provided by ratchet means on said shaft connected by an arm to float means whereby liquid motion acting on said float causes said arm to move said ratchet means in one direction and rotate said shaft.
5. A pump as claimed in Claim 1 wherein means is provided to prevent said pump from being totally submerged in said liquid.
6. A pump as claimed in Claim 1 wherein said helix is formed of tubing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9018586.9 | 1990-08-24 | ||
| GB909018586A GB9018586D0 (en) | 1990-08-24 | 1990-08-24 | Tide or wave operated power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2049778A1 true CA2049778A1 (en) | 1992-02-25 |
Family
ID=10681154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2049778 Abandoned CA2049778A1 (en) | 1990-08-24 | 1991-08-23 | Helical hydraulic pump |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2049778A1 (en) |
| GB (1) | GB9018586D0 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901512A (en) * | 2021-02-20 | 2021-06-04 | 鑫泓淼机械科技(山东)有限公司 | High-pressure pump with energy recovery turbine |
-
1990
- 1990-08-24 GB GB909018586A patent/GB9018586D0/en active Pending
-
1991
- 1991-08-23 CA CA 2049778 patent/CA2049778A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112901512A (en) * | 2021-02-20 | 2021-06-04 | 鑫泓淼机械科技(山东)有限公司 | High-pressure pump with energy recovery turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9018586D0 (en) | 1990-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |