CN104718381A - Water pump - Google Patents
Water pump Download PDFInfo
- Publication number
- CN104718381A CN104718381A CN201480002182.4A CN201480002182A CN104718381A CN 104718381 A CN104718381 A CN 104718381A CN 201480002182 A CN201480002182 A CN 201480002182A CN 104718381 A CN104718381 A CN 104718381A
- Authority
- CN
- China
- Prior art keywords
- volute
- current plate
- exhaust port
- circumferential side
- pump
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims description 19
- 239000000498 cooling water Substances 0.000 claims abstract description 22
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000004907 flux Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
- F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/428—Discharge tongues
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/12—Fluid guiding means, e.g. vanes
- F05D2240/126—Baffles or ribs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A flow-regulating plate for reducing the flow rate of cooling water on the outer peripheral side of a volute chamber is disposed downstream of the end part of a tongue section that separates the downstream side and upstream side of the volute chamber that is connected at the downstream side thereof to a discharge port.
Description
Technical field
The present invention relates to a kind of water pump.
Background technique
As this technology, disclose the technology described in following patent documentation 1.Patent Document 1 discloses a kind of pump, it has the partition wall bending stream be communicated with discharge tube being divided into first flow path and the second stream.
Look-ahead technique document
Patent documentation
Patent documentation 1: Japanese Unexamined Patent Publication 2001-336499 publication
Summary of the invention
Invent technical problem to be solved
In the technology described in patent documentation 1, owing to arranging partition wall across the over half of bending stream, so the loss that there is flow velocity becomes large and makes the possibility of deterioration of efficiency.
The present invention makes in view of the above problems, its object is to, and provides a kind of water pump that can raise the efficiency.
For the technological means of technical solution problem
In order to reach above-mentioned purpose, in the present invention, the downstream side of the end of the tongue divided in the downstream side of the volute be connected with exhaust port to downstream side and upstream side, the current plate that the flow velocity being provided with the cooling water of the outer circumferential side making volute reduces.
The effect of invention
Therefore, in the present invention, pump efficiency can be improved.
Accompanying drawing explanation
Fig. 1 is the stereogram of the electric water pump of embodiment 1.
Fig. 2 is the figure of the state of the pump cover of the electric water pump pulling down embodiment 1.
Fig. 3 is the figure of the flowing of the cooling water represented in volute when not arranging current plate.
The figure of the flowing of the cooling water in volute when Fig. 4 is the current plate arranging embodiment 1.
Fig. 5 is the figure of the state of the pump cover of the electric water pump pulling down embodiment 2.
Embodiment
(embodiment 1)
The electric water pump 1 of embodiment 1 uses cooling medium (cooling water) as working fluid, and the cooling pump loaded in the circulation loop be connected with heat exchanger (radiator) is the water pump such as supplying cooling water in hybrid electric vehicle to motor (internal-combustion engine), drive motor, transducer etc.
Fig. 1 is the stereogram of electric water pump 1.Electric water pump 1 is accommodated in pump casing 2.Pump casing 2 is made up of the pump housing 21 and pump cover 22.Suction port 23 and exhaust port 24 is formed at pump cover 22.In the inside of electric water pump 1, the impeller 3 with multiple blade 30 rotates, and by the rotation of impeller 3, sucks cooling water from suction port 23, and discharges cooling water from exhaust port 24.
Fig. 2 is the figure of the state of the pump cover 22 pulling down electric water pump 1.Impeller 3 is accommodated in by the pump housing 21 and pump cover 22 and is formed in inner space (impeller container 26).Impeller 3 is rotatably arranged on the running shaft 25 being fixed on the pump housing 21.The volute 27 forming spiral helicine groove is provided with at the peripheral part of impeller container 26.Volute 27 for starting point, is formed as the helical with the sense of rotation of impeller 3 (right rotation in Fig. 2) equidirectional with the A of Fig. 2 point.It should be noted that, below, the sense of rotation opposition side of the impeller 3 of volute 27 is called upstream side, sense of rotation side is called downstream side.The exhaust port linking department 27a in the most downstream portion of volute 27 is connected with the exhaust port 24 of pump cover.In addition, the side of exhaust port linking department 27a is formed as arc-shaped.Be formed at the pump housing 21 and divide the upstream side of volute 27 and the tongue 21a in downstream side.
Current plate 28 is formed in volute 27.Current plate 28 is set to, and a part for volute 27 is divided into two streams.The height of current plate 28 is formed as the height identical with the short transverse of volute 27.Current plate 28 is arranged on the downstream side of volute 27, and upstream-side-end 28a is arranged on the downstream side of the end of tongue 21a.The end of downstream side 28b of current plate 28 extends to exhaust port linking department 27a, but does not abut with the side of exhaust port linking department 27a.The upstream-side-end 28a of current plate 28 is formed as the outer circumferential side of the width direction intermediate point (point on line B) being positioned at volute 27, and end of downstream side 28b is formed as the inner circumferential side of the width direction intermediate point (point on line B) being positioned at volute 27.
[effect]
Fig. 3 is the figure of the flowing of the cooling water represented in the volute 27 when not arranging current plate 28.Utilize the rotation of impeller 3 to utilize centrifugal force to carry to volute 27 from the cooling water that suction port 23 sucks, flow to the direction identical with the sense of rotation of impeller 3.Now, the flow velocity of the velocity ratio inner circumferential side of the outer circumferential side of volute 27 is fast.Therefore, at the exhaust port linking department 27a of volute 27, become the flux rotated towards inner circumferential side from outer circumferential side, cooling water flows along exhaust port 24 and the wall of pipe arrangement that links with this exhaust port 24.Therefore, between itself and wall, produce frictional loss, in addition, improve the temperature of cooling water because of friction and reduce cooling effectiveness.
Therefore, in embodiment 1, current plate 28 is set at volute 27, the flow velocity of the cooling water of the outer circumferential side of this volute 27 is reduced.Fig. 4 is the figure of the flowing of cooling water in the volute 27 when representing the current plate 28 arranging embodiment 1.The upstream-side-end 28a of the current plate 28 of embodiment 1 is positioned at the outer circumferential side of the width direction intermediate point of volute 27, and end of downstream side 28b is positioned at the inner circumferential side of the width direction intermediate point of volute 27.That is, the flowing of the outer circumferential side of volute 27 enters from narrow entrance and flows out from broad outlet, and flow velocity reduces.On the other hand, the flowing of the outer circumferential side of volute 27 enters from broad entrance and flows out from narrow outlet, and flow velocity increases.Therefore, in the exhaust port linking department 27a of volute 27, the flowing of the outer circumferential side of cooling water and the flowing of inner circumferential side cancel each other out, and can suppress the generation of flux.Thus, be reduced in itself and exhaust port 24 and be linked to the frictional loss produced between the wall of the pipe arrangement of this exhaust port 24, in addition, the temperature of cooling water can be suppressed to rise, therefore, it is possible to make pump efficiency improve.
In addition, current plate 28 is arranged on the downstream side of the end of the tongue 21a of volute 27.Thereby, it is possible to shorten the length of current plate 28, reduce flow path resistance, and pump efficiency can be made to improve.
[effect]
(1) have: the pump casing 2 being formed with suction port 23 and exhaust port 24; The impeller container 26 of pump casing 2 can be configured in rotatably and suck cooling water and the impeller 3 of it being discharged from exhaust port 24 from suction port 23; Helical is formed as and the volute 27 that is connected with exhaust port 24 of downstream side at the peripheral part of impeller container 26; Divide the downstream side of volute 27 and the tongue 21a of upstream side; Be arranged on the downstream side of the end of the tongue 21a of volute 27 and make the current plate 28 that the flow velocity of the cooling water of the outer circumferential side of volute 27 reduces.
Therefore, at the exhaust port linking department 27a of volute 27, the flowing of the outer circumferential side of cooling water and the flowing of inner circumferential side cancel each other out, and can suppress the generation of flux.
(2) the upstream-side-end 28a of current plate 28 is positioned at the outer circumferential side of the width direction intermediate point of volute 27, and the end of downstream side 28b of current plate 28 is positioned at the inner circumferential side of the width direction intermediate point of volute 27.
Therefore, it is possible to utilize current plate 28 to make the flow velocity of the outer circumferential side of volute 27 reduce, at the exhaust port linking department 27a of volute 27, the flowing of the outer circumferential side of cooling water and the flowing of inner circumferential side cancel each other out, and can suppress the generation of flux.
(embodiment 2)
The electric water pump 1 of embodiment 2 is described.Identical reference character is marked to the structure identical with embodiment 1 and omits the description.Fig. 5 is the figure of the state of the pump cover 22 pulling down electric water pump 1.
The current plate 28 extended in volute 27 from the side of exhaust port linking department 27a is set.Thereby, it is possible to be blocked in exhaust port linking department 27a from outer circumferential side to the flowing of inner circumferential side, the generation of flux can be suppressed.
[effect]
(3) make current plate 28 be formed as, extend in volute 27 from the side of the exhaust port linking department 27a of volute 27.
Therefore, it is possible to be blocked in exhaust port linking department 27a from outer circumferential side to the flowing of inner circumferential side, and the generation of flux can be suppressed.
(other embodiments)
Above, based on embodiment 1 and embodiment 2, the present invention will be described, but the concrete structure of each invention is not limited to embodiment 1 and embodiment 2, and the present invention is also contained in the design alteration do not exceeded in the scope of inventive concept etc.
Description of reference numerals
1 electric water pump
3 impellers
21a tongue
23 suction ports
24 exhaust ports
26 impeller containers
27 volutes
28 current plates
Claims (3)
1. a water pump, is characterized in that, has:
Pump casing, it is formed with suction port and exhaust port;
Impeller, it can be configured in the impeller container of this pump casing rotatably, and sucks cooling water from described suction port and it discharged from described exhaust port;
Volute, it is formed as helical at the peripheral part of described impeller container, and downstream side is connected with described exhaust port;
Tongue, it divides downstream side and the upstream side of this volute;
Current plate, it is arranged on the downstream side of the end of the described tongue of described volute, and the flow velocity of the cooling water of the outer circumferential side of described volute is reduced.
2. water pump as claimed in claim 1, is characterized in that,
The upstream-side-end of described current plate is positioned at the outer circumferential side of the width direction intermediate point of described volute, and the end of downstream side of described current plate is positioned at the inner circumferential side of the width direction intermediate point of described volute.
3. water pump as claimed in claim 1, is characterized in that,
Described current plate is formed as, and extends in volute from the side in the most downstream portion of described volute.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-196493 | 2013-09-24 | ||
| JP2013196493A JP2015063900A (en) | 2013-09-24 | 2013-09-24 | Electrically-driven water pump |
| PCT/JP2014/068661 WO2015045569A1 (en) | 2013-09-24 | 2014-07-14 | Water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104718381A true CN104718381A (en) | 2015-06-17 |
Family
ID=52742726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480002182.4A Pending CN104718381A (en) | 2013-09-24 | 2014-07-14 | Water pump |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20160258444A1 (en) |
| JP (1) | JP2015063900A (en) |
| CN (1) | CN104718381A (en) |
| DE (1) | DE112014000220T5 (en) |
| WO (1) | WO2015045569A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443487A (en) * | 2019-09-03 | 2021-03-05 | 广东美的白色家电技术创新中心有限公司 | Pump with heating device and cleaning device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB555308A (en) * | 1941-03-08 | 1943-08-17 | Alfred Buechi | Improvements in or relating to diffuser devices for centrifugal pumps or blowers |
| JPH04203294A (en) * | 1990-11-29 | 1992-07-23 | Atsushi Tsuchida | Centrifugal pump with inducer |
| CN202628620U (en) * | 2012-05-15 | 2012-12-26 | 张家港市恩达泵业有限公司 | Volute chamber structure of horizontal pump |
| CN102852801A (en) * | 2011-06-30 | 2013-01-02 | 株式会社荏原制作所 | Sectional multi-stage pump |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2454390A (en) * | 1944-08-23 | 1948-11-23 | Duriron Co | Centrifugal pump |
| JPS5927198U (en) * | 1982-07-09 | 1984-02-20 | 株式会社ノーリツ | whirlpool pump |
| NZ211792A (en) * | 1984-04-18 | 1986-09-10 | Warman Int Ltd | Centrifugal pump casing |
| JP3662633B2 (en) * | 1995-06-30 | 2005-06-22 | 株式会社川本製作所 | underwater pump |
| JP2008121430A (en) * | 2006-11-08 | 2008-05-29 | Aisin Seiki Co Ltd | Water pump |
| KR101021827B1 (en) * | 2007-04-20 | 2011-03-17 | 미츠비시 쥬고교 가부시키가이샤 | Centrifugal compressor |
| JP2013057277A (en) * | 2011-09-07 | 2013-03-28 | Honda Motor Co Ltd | Centrifugal pump |
-
2013
- 2013-09-24 JP JP2013196493A patent/JP2015063900A/en active Pending
-
2014
- 2014-07-14 WO PCT/JP2014/068661 patent/WO2015045569A1/en active Application Filing
- 2014-07-14 DE DE112014000220.8T patent/DE112014000220T5/en not_active Withdrawn
- 2014-07-14 US US14/430,349 patent/US20160258444A1/en not_active Abandoned
- 2014-07-14 CN CN201480002182.4A patent/CN104718381A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB555308A (en) * | 1941-03-08 | 1943-08-17 | Alfred Buechi | Improvements in or relating to diffuser devices for centrifugal pumps or blowers |
| JPH04203294A (en) * | 1990-11-29 | 1992-07-23 | Atsushi Tsuchida | Centrifugal pump with inducer |
| CN102852801A (en) * | 2011-06-30 | 2013-01-02 | 株式会社荏原制作所 | Sectional multi-stage pump |
| CN202628620U (en) * | 2012-05-15 | 2012-12-26 | 张家港市恩达泵业有限公司 | Volute chamber structure of horizontal pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443487A (en) * | 2019-09-03 | 2021-03-05 | 广东美的白色家电技术创新中心有限公司 | Pump with heating device and cleaning device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112014000220T5 (en) | 2015-08-06 |
| JP2015063900A (en) | 2015-04-09 |
| US20160258444A1 (en) | 2016-09-08 |
| WO2015045569A1 (en) | 2015-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150617 |