CN204212887U - There is the electric fuel punp of two-stage supercharging function - Google Patents
There is the electric fuel punp of two-stage supercharging function Download PDFInfo
- Publication number
- CN204212887U CN204212887U CN201420675196.XU CN201420675196U CN204212887U CN 204212887 U CN204212887 U CN 204212887U CN 201420675196 U CN201420675196 U CN 201420675196U CN 204212887 U CN204212887 U CN 204212887U
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump
- anallobar
- pump chamber
- oil
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of electric fuel punp with two-stage supercharging function, include the pump case being provided with pump chamber, electric machine assembly is provided with in pump chamber in pump case, the pump chamber of described pump case is provided with pump core assembly relative to one end of oil inlet pipe, described pump core assembly includes the first impeller arranged successively from outside to inside, pump core bonnet, second impeller and impeller cover, described motor output shaft is connected with the first impeller and the second impeller-driven and coordinates, the outside of the first described impeller is provided with the first anallobar relative between pump core bonnet and oil inlet pipe the inner, the second described impeller is provided with second anallobar identical with the first anallobar, the outer wall relative to the second anallobar of this second impeller is " people " font, described impeller cover is provided with the impeller cover runner for being communicated with the second anallobar and pump chamber.The utility model has the advantages that reasonable in design, pressurized effect is reliable and stable and efficient, long service life.
Description
Technical field
The utility model relates to a kind of electric fuel punp, specifically refers to a kind of electric fuel punp with two-stage supercharging function.
Background technique
The effect of automobile electric fuel pump is delivered to after the fuel oil sucking-off in fuel tank, pressurization in the fuel pipe of oil sprayer, and certain fuel pressure is set up in fuel pressure regulator cooperation.
At present, the structure of existing automobile electric fuel pump generally comprises the pump case being provided with pump chamber, electric machine assembly is provided with in pump chamber in pump case, described pump chamber is provided with pump core assembly relative to the inner of oil-feed seat, the wheel rotation in electric machine assembly driven pump core assembly, pump case is also provided with and flows into the oil inlet pipe of pump chamber and the oil outlet tube for fuel oil outflow pump chamber for fuel oil, fuel oil flows into pump chamber through oil inlet pipe, pump chamber is flow through after impeller supercharging, spouting from oil outlet tube, reach supercharging object.
Existing electric fuel punp Problems existing: in pump core assembly, only have an impeller, the required rotational velocity of impeller is enough large, could by fuel pressure Quick-pressurizing, thus, cause the rotation of the electric machine assembly rotated for drives impeller too fast, heating value is larger, long service life, operating noise is large.
Summary of the invention
The purpose of this utility model is the shortcoming and defect existed to overcome prior art, and provides a kind of reasonable in design, and pressurized effect is good, and can improve the electric fuel punp with two-stage supercharging function in electric machine assembly working life.
For achieving the above object, the technical solution of the utility model is, include the pump case being provided with pump chamber, electric machine assembly is provided with in pump chamber in pump case, electric machine assembly includes motor, this motor is provided with motor output shaft, the two ends of pump case are respectively arranged with oil-feed seat and pump head seat, described oil-feed seat is provided with the oil inlet pipe flowing into pump chamber for fuel oil, described pump head seat is provided with the oil outlet tube flowing out pump chamber for fuel oil, the pump chamber of described pump case is provided with pump core assembly relative to one end of oil inlet pipe, described pump core assembly includes the first impeller arranged successively from outside to inside, pump core bonnet, second impeller and impeller cover, described motor output shaft is connected with the first impeller and the second impeller-driven and coordinates, the outside of the first described impeller is provided with the first anallobar relative between pump core bonnet and oil inlet pipe the inner, the second described impeller is provided with the second anallobar communicated with the first anallobar, the outer wall relative to the second anallobar of this second impeller is " people " font, described impeller cover is provided with the impeller cover runner for being communicated with the second anallobar and pump chamber.
By this setting, utilize the first impeller, at the first anallobar, fuel oil is carried out first time supercharging, and then in the second anallobar, carry out secondary booster by " people " font outer wall of the second impeller, thus, fuel pressurization efficiency can be greatly improved by secondary booster, and then can reduce motor speed requirement, thus improve the working life of motor, and reduce operating noise.
Further setting is provided with by the safety check of pump chamber to oil outlet tube one-way conduction in described oil outlet tube, and this safety check includes check valve receptacle, safety check valve head and safety check valve head Returnning spring.By this setting, prevent the fuel oil adverse current outside oil outlet tube inner to fuel pump, cause fuel pump internal pressure disorderly and break down.
Further setting is that described pump head seat is provided with the pressure release passage with pump chamber phase bucket, and be provided with Decompression valves in this pressure release passage, the cracking pressure of this Decompression valves is greater than the cracking pressure of described safety check.By this setting, when the pressure in fuel pump pump chamber is excessive, carry out pressure release by this Decompression valves.
Further setting is that the inner of described oil-feed seat is provided with bulb positioning groove, and be movably set with bulb in this bulb positioning groove, the outer end of described motor output shaft coordinates with this bulb rotating support.By this setting, make the outer end supporting stabilizer of motor output shaft reliable, surface friction drag is little.
In sum, the utility model reasonable in design, pressurized effect is reliable and stable and efficient, long service life.
Below in conjunction with specification drawings and specific embodiments, the utility model is described further.
Accompanying drawing explanation
Fig. 1 the utility model embodiment structure sectional view;
Fig. 2 is the structure sectional view at another visual angle perpendicular with Fig. 1.
Embodiment
Below by embodiment, the utility model being specifically described, only for being further described the utility model, the restriction to the utility model protection domain can not being interpreted as.
Embodiment of the present utility model as shown in Figure 1-2, include the pump case 1 being provided with pump chamber 11, electric machine assembly 2 is provided with in pump chamber 11 in pump case, electric machine assembly 2 includes motor 21, this motor is provided with motor output shaft 211, rotor 212 and magnetic shoe 213, this implements the employing of this motor 21 brush configuration motor, in addition, the two ends of the pump case 1 described in the present embodiment are respectively arranged with oil-feed seat 3 and pump head seat 4, described oil-feed seat 3 is provided with the oil inlet pipe 31 flowing into pump chamber for fuel oil, described pump head seat 4 is provided with the oil outlet tube 41 flowing out pump chamber for fuel oil, the pump chamber 11 of described pump case is provided with pump core assembly 5 relative to one end of oil inlet pipe 31, described pump core assembly 5 includes the first impeller 51 arranged successively from outside to inside, pump core bonnet 52, second impeller 53 and impeller cover 54, described motor output shaft 211 drives to be connected with the first impeller 51 and the second impeller 53 and coordinates, the outside of the first described impeller 51 is provided with the first anallobar 55 relative between pump core bonnet 52 and oil inlet pipe 31 the inner, the second described impeller 53 is provided with the second anallobar 56 communicated with the first anallobar 55, this the second impeller 53 be " people " font relative to the outer wall 531 of the second anallobar 56, described impeller cover 54 is provided with the impeller cover runner 541 for being communicated with the second anallobar 56 and pump chamber 11.
In addition, be provided with by the safety check 6 of pump chamber 11 to oil outlet tube outer end one-way conduction in oil outlet tube 41 described in the present embodiment, this safety check includes check valve receptacle 61, safety check valve head 62 and safety check valve head Returnning spring 63, in addition, described pump head seat 4 is provided with the pressure release passage 42 with pump chamber 11 phase bucket, be provided with Decompression valves 421 in this pressure release passage 42, the cracking pressure of this Decompression valves 421 is greater than the cracking pressure of described safety check 6.
In addition, the inner of the oil-feed seat 3 described in the present embodiment is provided with bulb positioning groove 32, is movably set with bulb 321 in this bulb positioning groove 32, and the outer end of described motor output shaft 211 coordinates with this bulb 321 rotating support.
Claims (4)
1. one kind has the electric fuel punp of two-stage supercharging function, comprise the pump case being provided with pump chamber, electric machine assembly is provided with in pump chamber in pump case, electric machine assembly includes motor, this motor is provided with motor output shaft, the two ends of pump case are respectively arranged with oil-feed seat and pump head seat, described oil-feed seat is provided with the oil inlet pipe flowing into pump chamber for fuel oil, described pump head seat is provided with the oil outlet tube flowing out pump chamber for fuel oil, the pump chamber of described pump case is provided with pump core assembly relative to one end of oil inlet pipe, it is characterized in that: described pump core assembly includes the first impeller arranged successively from outside to inside, pump core bonnet, second impeller and impeller cover, described motor output shaft is connected with the first impeller and the second impeller-driven and coordinates, the outside of the first described impeller is provided with the first anallobar relative between pump core bonnet and oil inlet pipe the inner, the second described impeller is provided with the second anallobar communicated with the first anallobar, the outer wall relative to the second anallobar of this second impeller is " people " font, described impeller cover is provided with the impeller cover runner for being communicated with the second anallobar and pump chamber.
2. a kind of electric fuel punp with two-stage supercharging function according to claim 1, it is characterized in that: be provided with by the safety check of pump chamber to oil outlet tube one-way conduction in described oil outlet tube, this safety check includes check valve receptacle, safety check valve head and safety check valve head Returnning spring.
3. a kind of electric fuel punp with two-stage supercharging function according to claim 2, it is characterized in that: described pump head seat is provided with the pressure release passage with pump chamber phase bucket, be provided with Decompression valves in this pressure release passage, the cracking pressure of this Decompression valves is greater than the cracking pressure of described safety check.
4. a kind of electric fuel punp with two-stage supercharging function according to claim 2, it is characterized in that: the inner of described oil-feed seat is provided with bulb positioning groove, be movably set with bulb in this bulb positioning groove, the outer end of described motor output shaft coordinates with this bulb rotating support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675196.XU CN204212887U (en) | 2014-11-13 | 2014-11-13 | There is the electric fuel punp of two-stage supercharging function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420675196.XU CN204212887U (en) | 2014-11-13 | 2014-11-13 | There is the electric fuel punp of two-stage supercharging function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204212887U true CN204212887U (en) | 2015-03-18 |
Family
ID=52981565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420675196.XU Expired - Fee Related CN204212887U (en) | 2014-11-13 | 2014-11-13 | There is the electric fuel punp of two-stage supercharging function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204212887U (en) |
-
2014
- 2014-11-13 CN CN201420675196.XU patent/CN204212887U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20181113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |