GB2041447A - Oscillating armature pump for liquids - Google Patents
Oscillating armature pump for liquids Download PDFInfo
- Publication number
- GB2041447A GB2041447A GB7943001A GB7943001A GB2041447A GB 2041447 A GB2041447 A GB 2041447A GB 7943001 A GB7943001 A GB 7943001A GB 7943001 A GB7943001 A GB 7943001A GB 2041447 A GB2041447 A GB 2041447A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pump
- plate spring
- armature
- plate
- spring
- 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.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 title claims 2
- 238000005086 pumping Methods 0.000 claims abstract description 7
- 230000002349 favourable effect Effects 0.000 claims abstract description 3
- 230000007704 transition Effects 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 239000011796 hollow space material Substances 0.000 claims 1
- 230000003068 static effect Effects 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/047—Liquid pumps for aquaria
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D33/00—Non-positive-displacement pumps with other than pure rotation, e.g. of oscillating type
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Animal Husbandry (AREA)
- Marine Sciences & Fisheries (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
- Computer And Data Communications (AREA)
Abstract
The pump has a housing defining a pump cavity 1 having alternating current operating coils mounted laterally of the cavity on block 3. The oscillating armature 6 is mounted on a plate spring 7 which is secured to the pump housing, and the armature is also provided with a resiliently flexible plate 8 for executing the pumping movement. The plate spring 7 is substantially 'U' or Omega-shape so that it takes up the minimum space, and also provides a favourable transition between the active oscillating end 11 of the spring plate and the static end 13 of the spring plate 7 secured to the housing. <IMAGE>
Description
SPECIFICATION
Oscillating armature pump
The present invention relates to an oscillating armature pump operated by alternating current, more especially a circulating pump for aquaria, in which the armature is secured to a plate spring which is provided with a thin plate made of rubber or rubber-like plastics material and which for carrying out the pumping movement is reciprocatable in the manner of a fishtail.
In known pumps of this kind, an elongate plate spring is provided in the form of a flat plate which is clamped at one end and at its free end supports the armature. Since, in these springs, a high specific continuous loadability is required, a predetermined minimum cross-sectional dimension is required. As a result of this, however, the rigidity of the spring can be obtained only by varying the length of the spring if the amplitude and hence that of the said plate is to be increased.
Such a step, however, in small pumps causes difficulties.
The object of the invention is based on increasing the active length of the plate spring without having to substantially modify the dimensions of the pump housing. At the same time the aim is to obtain a simplified clamping of the plate spring on the pump housing.
According to the present invention there is provided an oscillating armature pump operated with alternating current, more especially a circulating pump for aquaria, in which an armature is secured to a plate spring, the armature being provided with a resiliently flexible thin plate, which, for carrying out a pumping movement, is reciprocated in the manner of a fishtail, wherein the plate spring is substantially U-shaped. It is also possible to provide a fishhook shape or omega-shape.
In these embodiments one end of the plate spring is connected to the pump housing and the other end is connected to the armature, which in known manner may be produced by clamping, screwing thereon or the like. For the purpose of improved securing the shanks may also be provided with small bends, if for securing reasons this leads to a simplification.
The present invention will be described further, by way of example, with reference to the accompanying drawings in which:
Figure 1 shows a plan view of a circulating pump for aquaria; and
Figure 2 shows a section taken on the line Il-Il of Fig. 1.
The pump housing is a plastics material body having a pump cavity 1 defined by a rigid base plate 2 and by side blocks 3, which are used to receive, preferably moulded-in, alternating current coils (not shown in detail).
At the front end of the pump cavity 1 there is the outlet 4 at the end of a taper or constriction 5. The pump housing is open at its upper side.
Between the two blocks 3, or the alternating current coils located there, an armature 6 is arranged, which is secured to a plate spring 7 of steel or the like, and at its front end the armature supports a thin rubber plate 8.
This rubber plate 8 is reciprocated in the manner of a fishtail in accordance with the double arrow 9, in order so to draw in aquarium water via the open top side of the pump housing and to eject it through the outlet 4, (see arrows 1 0). It is, however, also possible for a proportion of the inflow to occur also via the rear end of the pump cavity 1.
The plate spring 7 is arcuate, and thus substantially U-shaped, with one end 11 of one shank 1 2 secured to the armature 6 and one end 1 3 of the other shank 1 4 secured to one of the blocks 3. Whilst the end 11 is retained by clamping in a slot in the armature 6, the end 1 3 is preferably secured to the block 3 by screwing or riveting. The rear end of the pump cavity 1 may also be provided with a yoke 15, the ends of which are also connected to the blocks 3, to provide a rear closure of the pump cavity 1.
The pre-shaped plate spring 7 not only permits a predetermined spring characteristic in the narrowest space to be obtained, but moreover, from a strength point of view, provides a favourable transition between the active, oscillating part of the plate spring 7 and the securing point or the part of the plate spring 7 (end 13), which is constantly at rest.
Thus, a substantial increase of service life of the dynamically highly-stressed plate spring 7 is attained. Furthermore, the mounting of the clamped plate spring end is simplified. The said shaping of the plate spring 7 provides end portions of this spring (ends 11, 13) which assume right angles relative to one another.
1. An oscillating armature pump operated with alternating current, more especially a circulating pump for aquaria, in which an armature is secured to a plate spring, the armature being provided with a resiliently flexible thin plate, which, for carrying out a pumping movement, is reciprocated in the manner of a fishtail, wherein the plate spring is substantially U-shaped.
2. A pump according to claim 1, in which the plate spring is substantially omegashaped.
3. A pump according to claim 1, in which the plate spring is substantially shaped in the manner of a fishhook.
4. A pump according to claim 1, in which the shanks of the plate spring or the ends thereof extend at least at right angles to one another.
5. A pump according to claim 1, in which
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (10)
1. An oscillating armature pump operated with alternating current, more especially a circulating pump for aquaria, in which an armature is secured to a plate spring, the armature being provided with a resiliently flexible thin plate, which, for carrying out a pumping movement, is reciprocated in the manner of a fishtail, wherein the plate spring is substantially U-shaped.
2. A pump according to claim 1, in which the plate spring is substantially omegashaped.
3. A pump according to claim 1, in which the plate spring is substantially shaped in the manner of a fishhook.
4. A pump according to claim 1, in which the shanks of the plate spring or the ends thereof extend at least at right angles to one another.
5. A pump according to claim 1, in which one end of the plate spring is secured to the rear end face of the pump housing, which extends substantially at right angles to the longitudinal extension of the armature of the thin plate supported thereby.
6. A pump according to claim 1, in which the plate spring projects arcuately to the rear beyond the pump housing.
7. A pump according to claim 1, in which the pump cavity hollow space towards the rear is closed by a yoke enclosing the plate spring.
8. A pump according to claims 1 and 7, in which an end of the yoke and an end of the plate spring are mutually secured to the pump housing.
9. A pump as claimed in any preceding claim in which the resiliently flexible thin plate is made of rubber or rubber-like plastics material.
10. An oscillating armature pump for liquids substantially as herein described with reference to and as illustrated in the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19797902758U DE7902758U1 (en) | 1979-02-01 | 1979-02-01 | VIBRATOR PUMP |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB2041447A true GB2041447A (en) | 1980-09-10 |
Family
ID=6700636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7943001A Withdrawn GB2041447A (en) | 1979-02-01 | 1979-12-13 | Oscillating armature pump for liquids |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS55104600A (en) |
| AT (1) | AT364605B (en) |
| AU (1) | AU5470780A (en) |
| BE (1) | BE881484A (en) |
| CA (1) | CA1129925A (en) |
| CS (1) | CS216520B2 (en) |
| DE (1) | DE7902758U1 (en) |
| DK (1) | DK45580A (en) |
| ES (1) | ES254337Y (en) |
| FR (1) | FR2448055A1 (en) |
| GB (1) | GB2041447A (en) |
| GR (1) | GR65807B (en) |
| IT (2) | IT1129787B (en) |
| LU (1) | LU82117A1 (en) |
| NL (1) | NL8000374A (en) |
| SE (1) | SE8000540L (en) |
| SU (1) | SU942605A3 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2121111A (en) * | 1982-05-26 | 1983-12-14 | Graham Frederick Cox | Oscillatory pumps |
| US4834619A (en) * | 1987-11-10 | 1989-05-30 | The Boeing Company | Ducted oscillatory blade fan |
| GB2210414A (en) * | 1987-10-01 | 1989-06-07 | Emi Plc Thorn | A pumping device |
| CN102834126A (en) * | 2010-01-27 | 2012-12-19 | Ecp发展有限责任公司 | Conveying device for a fluid |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4493831A (en) * | 1982-10-25 | 1985-01-15 | Fujisawa Pharmaceutical Co., Ltd. | Aminoglycoside derivatives |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2522309C3 (en) * | 1975-05-20 | 1979-10-11 | Waldemar 4500 Osnabrueck Riepe | Liquid pump |
-
1979
- 1979-02-01 DE DE19797902758U patent/DE7902758U1/en not_active Expired
- 1979-12-13 GB GB7943001A patent/GB2041447A/en not_active Withdrawn
-
1980
- 1980-01-16 AT AT0022280A patent/AT364605B/en not_active IP Right Cessation
- 1980-01-18 AU AU54707/80A patent/AU5470780A/en not_active Abandoned
- 1980-01-21 NL NL8000374A patent/NL8000374A/en not_active Application Discontinuation
- 1980-01-23 GR GR61018A patent/GR65807B/el unknown
- 1980-01-23 SE SE8000540A patent/SE8000540L/en not_active Application Discontinuation
- 1980-01-24 IT IT19438/80A patent/IT1129787B/en active
- 1980-01-24 IT IT8020583U patent/IT8020583V0/en unknown
- 1980-01-25 CS CS80532A patent/CS216520B2/en unknown
- 1980-01-29 FR FR8001905A patent/FR2448055A1/en not_active Withdrawn
- 1980-01-31 ES ES1980254337U patent/ES254337Y/en not_active Expired
- 1980-01-31 BE BE0/199218A patent/BE881484A/en unknown
- 1980-01-31 LU LU82117A patent/LU82117A1/en unknown
- 1980-02-01 JP JP1013080A patent/JPS55104600A/en active Pending
- 1980-02-01 SU SU802879252A patent/SU942605A3/en active
- 1980-02-01 DK DK45580A patent/DK45580A/en unknown
- 1980-02-01 CA CA344,885A patent/CA1129925A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2121111A (en) * | 1982-05-26 | 1983-12-14 | Graham Frederick Cox | Oscillatory pumps |
| GB2210414A (en) * | 1987-10-01 | 1989-06-07 | Emi Plc Thorn | A pumping device |
| US4834619A (en) * | 1987-11-10 | 1989-05-30 | The Boeing Company | Ducted oscillatory blade fan |
| CN102834126A (en) * | 2010-01-27 | 2012-12-19 | Ecp发展有限责任公司 | Conveying device for a fluid |
| US20130019968A1 (en) * | 2010-01-27 | 2013-01-24 | Ecp Entwicklungsegesellschaft Mbh | Conveying device for a fluid |
| US8814543B2 (en) * | 2010-01-27 | 2014-08-26 | Ecp Entwicklungsgesellschaft Mbh | Conveying device for a fluid using an oscillating body arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CS216520B2 (en) | 1982-11-26 |
| LU82117A1 (en) | 1980-04-23 |
| ATA22280A (en) | 1981-03-15 |
| AT364605B (en) | 1981-11-10 |
| BE881484A (en) | 1980-05-16 |
| GR65807B (en) | 1980-11-05 |
| IT8020583V0 (en) | 1980-01-24 |
| SU942605A3 (en) | 1982-07-07 |
| SE8000540L (en) | 1980-08-02 |
| ES254337Y (en) | 1981-10-01 |
| IT8019438A0 (en) | 1980-01-24 |
| FR2448055A1 (en) | 1980-08-29 |
| IT1129787B (en) | 1986-06-11 |
| CA1129925A (en) | 1982-08-17 |
| ES254337U (en) | 1981-03-16 |
| AU5470780A (en) | 1980-08-07 |
| DE7902758U1 (en) | 1979-07-05 |
| JPS55104600A (en) | 1980-08-11 |
| NL8000374A (en) | 1980-08-05 |
| DK45580A (en) | 1980-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |