CN102434490B - Electric fuel pump impeller - Google Patents
Electric fuel pump impeller Download PDFInfo
- Publication number
- CN102434490B CN102434490B CN201110411645.0A CN201110411645A CN102434490B CN 102434490 B CN102434490 B CN 102434490B CN 201110411645 A CN201110411645 A CN 201110411645A CN 102434490 B CN102434490 B CN 102434490B
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- groove
- impeller
- conservancy diversion
- water conservancy
- blade
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Abstract
The invention discloses an electric fuel pump impeller, which comprises an impeller body, wherein the impeller body is in a shape of a circular plate on the whole, and a position on the impeller body, which is close to the periphery, is provided with an annular blade groove; a plurality of blades are transversely connected between the side surface of the outer ring of the blade groove and the side surface of the inner ring of the blade groove; the blades are mutually inclined along one side of an oil inlet direction of the blade groove and one side of an oil outlet direction of the blade groove and are symmetrically arranged; inclination angles of every two adjacent blades are different; the blades are unevenly distributed around one cycle of the blade groove; 6 guide floating grooves are arrange on the side surface of one oil inlet side of the impeller body; and each floating groove is internally provided with a first pressure balancing hole. According to the invention, the impeller is suspended in a pump chamber under the action of the floating groove and under the condition that the impeller rotates at high speed, oil liquid generated by the floating grooves can also play a role of auxiliary lubrication, flow drag and high-frequency noise caused by fluid can be reduced by combining an unequal-frequency oil outlet way generated by the unequally-distributed blades, and thus quality of a fuel pump is improved.
Description
Technical field
The present invention relates to a kind of blade type automobile electric fuel pump, particularly a kind of automobile electric fuel pump impeller.
Background technique
Fuel pump is the vitals in vehicle fuel supply system, is the key components and parts of motor car engine.In 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 arranged on the inner or outer side of mailbox, during use, gasoline enters from fuel pump one end, after the other end pressurization, flow out, thereby provide injection pressure for fuel injection system.Electric fuel punp is divided into again roller type, blade type and gear type.
Existing a kind of blade type electric fuel punp, mainly comprises the pump housing, stator, rotor, impeller and pump chamber.Wherein, described impeller, its existing structure is: comprise that integral body is discoideus impeller body, on impeller body, near periphery place, be provided with the blade groove of an annular, between side, outer ring in blade groove and inner ring side, be horizontally connected with some equally distributed blades, described blade is along a side of blade groove oil-feed direction and the lopsidedness of fuel-displaced direction and be symmetrically set, wherein, between every adjacent blades, the side, outer ring of blade groove integral body is plane shape setting, and between every adjacent blades, the inner ring side of blade groove consists of two crossing inclined-planes.
The structure of this existing impeller is because blade is equally distributed, and when impeller runs up, every identical generation synergistic effect of the fuel-displaced frequency of blade has produced the ear-piercing high frequency fluid noise that screams.Research finds, it is that every blade of structure due to existing impeller is equally distributed structure that existing impeller produces noise with rotating speed same frequency, and when fuel-displaced, the fuel-displaced frequency of every blade is identical and be equal to rotating speed, has produced synergistic effect and has caused noise large.Simultaneously, because present fuel oil applied environment pressure improves gradually, the structure of existing impeller is without power character suspension groove and pressure compensation opening, when operation, cannot and run up lower self-suspending in fluid in high pressure, its surface approaches or is attached at pump chamber inwall High Rotation Speed, cause the large vibration of pump housing wearing and tearing large, thereby further increased the noise of fuel pump.
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 to provide a kind of impeller of electric fuel pump that can automatically float reduce wear and noise under high oil pressure.
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, on impeller body, near periphery place, be provided with the blade groove of an annular, between the side, outer ring of blade groove and inner ring side, be horizontally connected with some blades, described blade mutually tilts and is symmetrically set along a side of blade groove oil-feed direction and a side of fuel-displaced direction, and the angle of inclination of every adjacent blades is not identical.
Further, described blade is around one week non-uniform Distribution of blade groove.When fuel-displaced, the fuel-displaced frequency of every blade is not identical, because the difference of frequency has produced the Wave crest and wave trough interference mitigation effect of physics, and the noise of high band while having reduced fuel pump work.
Further, in the side of impeller body oil-feed one side, be provided with 6 water conservancy diversion and float groove, in water conservancy diversion floats groove, be provided with the first pressure compensation opening; Described water conservancy diversion floats groove and is positioned at blade inner side, and is evenly distributed on the circumference concentric with impeller body; The bottom surface that described water conservancy diversion floats groove is one from water conservancy diversion, to float the inclined-plane that groove one end tilts to the other end, and this first pressure compensation opening is positioned at and floats one end that groove bottom is lower; Institute's water conservancy diversion floats well width 2mm, and the angle of its bottom surface and horizontal plane is 50 degree.When fuel pump moves, fuel oil by the first pressure compensation opening by zone of high pressure water conservancy diversion to low pressure area, the centrifugal force producing during again by impeller High Rotation Speed throws away the fuel oil of water conservancy diversion be distributed in uniformly impeller operating on low voltage face, in the situation that height pressure reduction is larger, impeller also can be suspended in pump chamber in this way, water conservancy diversion floats the effect that fuel oil in groove has also played lubrication assistant, reduce impeller body with the probability of pump chamber inwall contact, thereby reach reduction fretting wear, lower the effect of vibration and reduction noise.
Further, be also provided with 4 the second pressure compensation openings on impeller body, described the second pressure compensation opening is positioned at water conservancy diversion and floats groove inner side.The depression feed points producing while producing for balance injection moulding, while making vane rotary, dynamical balancing is more coordinated.
Further, the diameter of the first pressure compensation opening and the second pressure compensation opening is 2mm.
In sum, compared to the prior art, the flow-disturbing that the present invention can make impeller body produce in the situation of running up is little, and high frequency noise is low, vibrate little, thereby promote the quality of fuel oil oil pump.
Accompanying drawing explanation
Fig. 1 is plan view of the present invention;
Fig. 2 is worm's eye view of the present invention;
Fig. 3 be Fig. 1 along A-A to sectional view;
Fig. 4 be Fig. 1 along B-B to sectional view;
Fig. 5 be Fig. 1 along C-C to sectional view
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
During concrete enforcement, as shown in Figures 1 to 5, a kind of impeller of electric fuel pump, comprise that integral body is discoideus impeller body 1, on impeller body 1, near periphery place, be provided with the blade groove 2 of an annular, between the side, outer ring of blade groove 2 and inner ring side, be horizontally connected with some blades 3, described blade 3 mutually tilts and is symmetrically set along a side of blade groove 2 oil-feed directions and a side of fuel-displaced direction, and the angle of inclination of every adjacent blades 3 is not identical.As optimal way, the arc shaped surface 7 that the radius that between every adjacent blades, the side, outer ring of blade groove is all designed to be mutually symmetrical along the two ends of water inlet direction and water outlet direction is 3mm, the arc shaped surface 8 that the radius that its inner ring side is all designed to be mutually symmetrical along the two ends of water inlet direction and water outlet direction is 1.5mm.Meanwhile, on the rightabout side of Yu Qi both sides, both sides angle of every blade, be provided with chamfering.Make oil-feed and speed when fuel-displaced all not identical with amount, thereby produced the Wave crest and wave trough interference mitigation effect of physics, the noise of high band while having reduced fuel pump work.
Described blade 3 is around 2 one weeks non-uniform Distribution of blade groove.When fuel-displaced, the fuel-displaced frequency of every blade is not identical, because the difference of frequency has produced the Wave crest and wave trough interference mitigation effect of physics, and the noise of high band while having reduced fuel pump work.
In the side of impeller body oil-feed one side, be provided with 6 water conservancy diversion and float groove 4, in floating groove, be provided with the first pressure compensation opening 5; Described water conservancy diversion floats groove 4 and is positioned at blade 3 inner sides, and be evenly distributed on the concentric circumference of impeller body 1 on; The bottom surface that described water conservancy diversion floats groove 4 is one from water conservancy diversion, to float the inclined-plane that groove one end tilts to the other end, and this first pressure compensation opening 5 is positioned at and floats one end that groove bottom is lower; Institute's water conservancy diversion floats groove 4 width 2mm, and the angle of its bottom surface and horizontal plane is 50 degree.When fuel pump moves, fuel oil by the first pressure compensation opening by zone of high pressure water conservancy diversion to low pressure area, the centrifugal force producing during again by impeller High Rotation Speed throws away the fuel oil of water conservancy diversion be distributed in uniformly impeller operating on low voltage face, in the situation that height pressure reduction is larger, impeller also can be suspended in pump chamber in this way, water conservancy diversion floats the effect that fuel oil in groove has also played lubrication assistant, reduce impeller body with the probability of pump chamber inwall contact, thereby reach reduction fretting wear, lower the effect of vibration and reduction noise.
On impeller body, be also provided with 4 the second pressure compensation openings 6, described the second pressure compensation opening 6 is positioned at water conservancy diversion and floats groove 4 inner sides.The second pressure compensation opening 6 non-uniform Distribution with the concentric circumference of impeller body 1 on, and 4 the second pressure compensation openings 6 line centered by a diameter is symmetrical.The depression feed points producing while producing for balance injection moulding, while making vane rotary, dynamical balancing is more coordinated.In actual production process, as optimal way, the diameter of the first pressure compensation opening 5 and the second pressure compensation opening 6 is 2mm.
The flow-disturbing that the present invention can make impeller body produce in the situation of running up is little, and high frequency noise is low, vibrate little, thereby promote the quality of fuel oil oil pump.
Protection scope of the present invention is not restricted to this embodiment; it can also make all changes that is equal in the protection domain described in the claims in the present invention 1; specifically; as long as other impeller is all designed to along the two ends of water inlet direction and water outlet direction the arc shaped surface being mutually symmetrical on the side, outer ring of blade groove between every adjacent blades and inner ring side; and the concrete arc radius that needn't manage arc shaped surface is how many, all should regards as and fall into protection scope of the present invention.
Claims (1)
1. an impeller of electric fuel pump, comprise that integral body is discoideus impeller body, on impeller body, near periphery place, be provided with the blade groove of an annular, between the side, outer ring of blade groove and inner ring side, be horizontally connected with some blades, described blade mutually tilts and is symmetrically set along a side of blade groove oil-feed direction and a side of fuel-displaced direction, it is characterized in that, the angle of inclination of every adjacent blades is not identical; Described blade is around one week non-uniform Distribution of blade groove;
Between every adjacent blades, the side, outer ring of blade groove is the arc shaped surface that the radius that is mutually symmetrical is 3mm along the two ends of oil-feed direction and fuel-displaced direction, and its inner ring side is the arc shaped surface that the radius that is mutually symmetrical is 1.5mm along the two ends of oil-feed direction and fuel-displaced direction;
In the side of impeller body oil-feed one side, be provided with 6 water conservancy diversion and float groove, in water conservancy diversion floats groove, be provided with the first pressure compensation opening; Described water conservancy diversion floats groove and is positioned at blade groove inner side, and is evenly distributed on the circumference concentric with impeller body; The bottom surface that described water conservancy diversion floats groove is one from water conservancy diversion, to float the inclined-plane that groove one end tilts to the other end, and this first pressure compensation opening is positioned at water conservancy diversion and floats one end that groove bottom is lower; Described water conservancy diversion floats well width 2mm, and the angle of its bottom surface and horizontal plane is 50 degree;
On impeller body, be also provided with 4 the second pressure compensation openings, described the second pressure compensation opening is positioned at water conservancy diversion and floats groove inner side; The diameter of the first pressure compensation opening and the second pressure compensation opening is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110411645.0A CN102434490B (en) | 2011-12-12 | 2011-12-12 | Electric fuel pump impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110411645.0A CN102434490B (en) | 2011-12-12 | 2011-12-12 | Electric fuel pump impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102434490A CN102434490A (en) | 2012-05-02 |
| CN102434490B true CN102434490B (en) | 2014-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110411645.0A Active CN102434490B (en) | 2011-12-12 | 2011-12-12 | Electric fuel pump impeller |
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| CN (1) | CN102434490B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678992B (en) * | 2018-04-24 | 2020-10-16 | 宁波洛卡特汽车零部件有限公司 | Production method of impeller for electric 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 |
| CN111659958B (en) * | 2020-06-17 | 2024-05-07 | 深圳市领时机械有限公司 | Power chamfering device for radial holes on inner side walls of small holes |
| CN112502874A (en) * | 2020-12-14 | 2021-03-16 | 瑞安市捷恒汽摩配件有限公司 | Brushless electric fuel pump of low-noise motorcycle |
| CN115382253B (en) * | 2022-08-18 | 2024-02-06 | 国能神皖合肥发电有限责任公司 | Can eliminate oil station return oil metering device of thin oil bubble |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594886A (en) * | 2004-07-05 | 2005-03-16 | 薛肇江 | Electric and fuel double groove impeller pump |
| CN2921376Y (en) * | 2006-06-07 | 2007-07-11 | 孙国庆 | Electric fuel pump |
| CN101046211A (en) * | 2006-03-30 | 2007-10-03 | 株式会社电装 | Impeller for fuel oil pump and fuel oil pump using the same |
| CN201096104Y (en) * | 2007-09-29 | 2008-08-06 | 薛肇江 | Electric oil fuel pump blade wheel with involute pressure balance slot |
| CN101672296A (en) * | 2009-09-22 | 2010-03-17 | 重庆华渝电气仪表总厂 | Impeller of electric fuel pump |
| CN201568363U (en) * | 2009-12-23 | 2010-09-01 | 宁波洛卡特汽车零部件有限公司 | Turbine-type electric fuel pump |
| CN201934374U (en) * | 2010-04-28 | 2011-08-17 | 哈尔滨志阳汽车电机有限公司 | Novel vane of electric fuel pump |
| CN202326393U (en) * | 2011-12-12 | 2012-07-11 | 重庆平江实业有限责任公司 | Impeller for electric fuel pump |
-
2011
- 2011-12-12 CN CN201110411645.0A patent/CN102434490B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1594886A (en) * | 2004-07-05 | 2005-03-16 | 薛肇江 | Electric and fuel double groove impeller pump |
| CN101046211A (en) * | 2006-03-30 | 2007-10-03 | 株式会社电装 | Impeller for fuel oil pump and fuel oil pump using the same |
| CN2921376Y (en) * | 2006-06-07 | 2007-07-11 | 孙国庆 | Electric fuel pump |
| CN201096104Y (en) * | 2007-09-29 | 2008-08-06 | 薛肇江 | Electric oil fuel pump blade wheel with involute pressure balance slot |
| CN101672296A (en) * | 2009-09-22 | 2010-03-17 | 重庆华渝电气仪表总厂 | Impeller of electric fuel pump |
| CN201568363U (en) * | 2009-12-23 | 2010-09-01 | 宁波洛卡特汽车零部件有限公司 | Turbine-type electric fuel pump |
| CN201934374U (en) * | 2010-04-28 | 2011-08-17 | 哈尔滨志阳汽车电机有限公司 | Novel vane of electric fuel pump |
| CN202326393U (en) * | 2011-12-12 | 2012-07-11 | 重庆平江实业有限责任公司 | Impeller for electric fuel pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102434490A (en) | 2012-05-02 |
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