CN101672296B - Impeller of electric fuel pump - Google Patents
Impeller of electric fuel pump Download PDFInfo
- Publication number
- CN101672296B CN101672296B CN2009101909275A CN200910190927A CN101672296B CN 101672296 B CN101672296 B CN 101672296B CN 2009101909275 A CN2009101909275 A CN 2009101909275A CN 200910190927 A CN200910190927 A CN 200910190927A CN 101672296 B CN101672296 B CN 101672296B
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- China
- Prior art keywords
- impeller
- fuel pump
- oil
- blade
- electric fuel
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Abstract
The invention discloses an impeller of an electric fuel pump, which comprises an impeller body, the whole impeller body is shaped like a circular plate, an annular blade slot is formed on the impeller body which is near to the periphery, a plurality of blades which are evenly distributed are transversely connected between the side surface of an outer ring and the side surface of an inner ring in the blade slot, and the blades are mutually tilted and mutually symmetrically arranged along the side of the oil inlet direction and the side of the oil outlet direction of the blade slot. The impeller of the electric fuel pump is characterized in that two ends on the side surface of the outer ring and the side surface of the inner ring of the blade slot between each two adjacent blades along the water inlet direction and the water outlet direction are designed to be arc-shaped surfaces which are mutually symmetric. Compared with the prior art, the impeller of the electric fuel pump can reduce the turbulence, increase the scraping amount of oil liquid and greatly improve the oil pressure of outlet oil under the situation of keeping the same rotational speed of the impeller, thereby improving the using power of the fuel pump and saving the energy.
Description
Technical field
The present invention relates to a kind of blade type motorcar electric fuel pump, particularly a kind of motorcar electric fuel pump impeller.
Background technique
Fuel pump is the vitals in the vehicle fuel supply system, is the key components and parts of motor car engine.In the electronic fuel injection motor, the fuel oil that is transported to oil sprayer must pressurize before engine running, so need an electric fuel punp, it can be installed in the mailbox or the outside, gasoline enters from fuel pump one end during use, flow out the other end pressurization back, thereby provide injection pressure for fuel injection system.Electric fuel punp is divided into roller type, blade type and gear type again.
Existing a kind of blade type electric fuel punp mainly comprises the pump housing, stator, rotor, impeller and rotating shaft.Wherein, described impeller, its existing structure is: comprise that integral body is discoideus impeller body, be provided with the blade groove of an annular on the impeller body near the periphery place, be horizontally connected with some equally distributed blades between side, outer ring in the blade groove and the inner ring side, described blade tilts mutually and is symmetrically set along a side of side of blade groove oil-feed direction and fuel-displaced direction, wherein, the side, outer ring of blade groove integral body is the plane shape setting between every adjacent blades, and the inner ring side of blade groove is made of two crossing inclined-planes between every adjacent blades.
This existing blade because its blade groove unreasonable structure can produce flow phenomenon, reduces oil pressure, and flow reduces, and causes the low defective of fuel pump power.
Summary of the invention
Technical problem to be solved by this invention is, in order to overcome above-mentioned the deficiencies in the prior art, and provides a kind of generation oil pressure big, can make the impeller of electric fuel pump that fuel pump power is higher after the use.
In order to solve the problems of the technologies described above, the present invention has adopted following technological scheme:
A kind of impeller of electric fuel pump, comprise that integral body is discoideus impeller body, be provided with the blade groove of an annular on the impeller body near the periphery place, be horizontally connected with some equally distributed blades between side, outer ring in the blade groove and the inner ring side, described blade tilts mutually and is symmetrically set along a side of side of blade groove oil-feed direction and fuel-displaced direction, its characteristics are, the two ends of the side, outer ring of blade groove and upper edge, inner ring side water inlet direction and water outlet direction all are designed to the arc shaped surface that is mutually symmetrical between every adjacent blades.
The claimant discovers, it is little that existing impeller produces oil pressure, the defective of being brought just because of self shape structure of its blade groove, existing blade wheel structure, the angular surface type design that the side, outer ring of its blade groove and inner ring side are respectively plane shape and intersect, make fluid impact above after be easy to generate flow-disturbing, so just influenced oil flow, cause oil pressure to reduce.So the claimant all is designed to side, blade groove outer ring and inner ring side the arc shaped surface of two symmetries, like this, oil-feed place of the inside and outside two side of blade groove and fuel-displaced place are arc, more meet fluid mechanics principle, can make oil-feed and fuel-displaced all more smooth and easy, fluid is mobile better, reduced the generation of flow-disturbing, thereby increased fluid oil-feed and fuel-displaced flow velocity, thus the oil pressure that electric fuel punp produces improved greatly, thus improved fuel pump power.
As optimization, two arc shaped surfaces that arc shaped surface is radius 3mm between described every adjacent blades on the side, blade groove outer ring, two arc shaped surfaces that arc shaped surface is radius 1.5mm on the inner ring side.This optimizes numerical value and is the optimum value through obtaining after a large amount of experiments, can guarantee that the effect of the fuel-displaced oil pressure of above-mentioned increase reaches best.Optimize outside, back arc radius and locate arc radius greater than the inboard, be because the claimant considers that fluid has centrifugal force laterally when honeycomb duct is made high speed rotating, strengthen inwall place circular arc in view of the above fluid pressure direction by blade the time is consistent with the centrifugal force direction, can further reduce the disturbance that refluxes.
As further optimization and improvement, the both sides of every blade and the rightabout side of its both sides angle are provided with chamfering.Increase the frizing area of oil-feed opening and fuel-displaced opening like this, improved the ratio of itself and boost port area, improved the efficient that fluid passes through, further increased fuel-displaced oil pressure.Optimize the back chamfering be arranged on the rightabout side of both sides angle on rather than on the side of angle inboard, both sides, also be because the existence of centrifugal force is arranged, when if chamfering is arranged on the side of angle inboard, both sides then the fluid by blade return part and thrown away runner by centrifugal force and cause the pressure loss, chamfering be arranged on the rightabout side of both sides angle on the time equally also be strengthen filler opening but greatly reduce by centrifugal force throw away runner may.
In sum, compare with prior art, the present invention can make and keep can reducing and scratching stream under the situation of same rotational speed at impeller, increases fluid and scrapes into amount, improves fuel-displaced oil pressure greatly, uses power thereby improved fuel pump, has saved the energy.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is that the B-B among Fig. 1 analyses and observe local enlarged diagram.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
During concrete enforcement, as shown in Figure 1 to Figure 3, a kind of impeller of electric fuel pump, comprise that integral body is discoideus impeller body 1, be provided with the blade groove 6 of an annular on the impeller body 1 near the periphery place, be horizontally connected with some equally distributed blades 2 between side, outer ring in the blade groove 6 and the inner ring side, described blade 2 tilts mutually and is symmetrically set along a side of side of blade groove 6 oil-feed directions and fuel-displaced direction, wherein, the radius that the two ends of the upper edge, side, outer ring of blade groove 6 water inlet direction and water outlet direction all are designed to be mutually symmetrical between every adjacent blades 2 is the arc shaped surface 3 of 3mm, and the radius that the two ends of its upper edge, inner ring side water inlet direction and water outlet direction all are designed to be mutually symmetrical is the arc shaped surface 4 of 1.5mm.Simultaneously, the both sides of every blade 2 and the rightabout side of its both sides angle are provided with chamfering 5.Compare with prior art, the present invention can make and keep improving fuel-displaced oil pressure greatly under the situation of same rotational speed at impeller, uses power thereby improved fuel pump, has saved the energy.
Protection scope of the present invention is not restricted to this embodiment; it can also make all changes that is equal in the described protection domain of claim 1 of the present invention; specifically; as long as the two ends of the side, outer ring of other impeller blade groove between every adjacent blades and upper edge, inner ring side water inlet direction and water outlet direction all are designed to the arc shaped surface that is mutually symmetrical; and how many concrete arc radius that needn't manage arc shaped surface is, all should regard as to fall into protection scope of the present invention.
Claims (2)
1. impeller of electric fuel pump, comprise that integral body is discoideus impeller body, be provided with the blade groove of an annular on the impeller body near the periphery place, be horizontally connected with some equally distributed blades between side, outer ring in the blade groove and the inner ring side, described blade tilts mutually and is symmetrically set along a side of side of blade groove oil-feed direction and fuel-displaced direction, it is characterized in that, the two ends of the side, outer ring of blade groove and upper edge, inner ring side water inlet direction and water outlet direction all are designed to the arc shaped surface that is mutually symmetrical between every adjacent blades, two arc shaped surfaces that arc shaped surface is radius 3mm between described every adjacent blades on the side, blade groove outer ring, two arc shaped surfaces that arc shaped surface is radius 1.5mm on the inner ring side.
2. impeller of electric fuel pump as claimed in claim 1 is characterized in that, the both sides of every blade and the rightabout side of its both sides angle are provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101909275A CN101672296B (en) | 2009-09-22 | 2009-09-22 | Impeller of electric fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101909275A CN101672296B (en) | 2009-09-22 | 2009-09-22 | Impeller of electric fuel pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101672296A CN101672296A (en) | 2010-03-17 |
| CN101672296B true CN101672296B (en) | 2011-06-08 |
Family
ID=42019657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101909275A Expired - Fee Related CN101672296B (en) | 2009-09-22 | 2009-09-22 | Impeller of electric fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101672296B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434490B (en) * | 2011-12-12 | 2014-07-16 | 重庆平江实业有限责任公司 | Electric fuel pump impeller |
| CN103742443B (en) * | 2014-01-27 | 2016-03-30 | 广州竞标汽车零部件制造有限公司 | A kind of impeller module of fuel pump |
| CN109209705A (en) * | 2018-11-20 | 2019-01-15 | 浙江双良汽车零部件有限公司 | Low noise vortex fuel pump |
| CN109340172A (en) * | 2018-12-10 | 2019-02-15 | 广州竞标新能源汽车部件股份有限公司 | A kind of fuel pump impeller |
-
2009
- 2009-09-22 CN CN2009101909275A patent/CN101672296B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101672296A (en) | 2010-03-17 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20170922 |