CN203051155U - Brushless high pressure fuel pump - Google Patents
Brushless high pressure fuel pump Download PDFInfo
- Publication number
- CN203051155U CN203051155U CN 201220718882 CN201220718882U CN203051155U CN 203051155 U CN203051155 U CN 203051155U CN 201220718882 CN201220718882 CN 201220718882 CN 201220718882 U CN201220718882 U CN 201220718882U CN 203051155 U CN203051155 U CN 203051155U
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- China
- Prior art keywords
- upright
- high pressure
- pressure fuel
- fuel pump
- assembly
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- 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
A brushless high pressure fuel pump comprises an oil outlet base assembly, a support assembly, a stator assembly, a machine shell, a rotor assembly and a pump chamber assembly. The oil outlet base assembly covers the upper end of the support assembly and is connected with one end of the machine shell. The stator assembly is connected at the lower end of the support assembly. The rotor assembly is arranged in the stator assembly in a penetrating mode and connected with the support assembly. The pump chamber assembly is connected to the lower end of the rotor assembly and arranged inside the machine shell. The brushless high pressure fuel pump further comprises a controller which further comprises a main processor, a signal panel and a driving board, wherein the signal panel and the driving board are arranged on the support assembly, the main processor is connected with the signal panel and the driving board, and the driving board is connected with the stator assembly. The brushless high pressure fuel pump has the advantages of being long in service life, low in vibration and noise, and good in system stability and electromagnetic interference performance.
Description
Technical field
The utility model relates to a kind of fuel pump, relates in particular to a kind of brushless high pressure fuel pump.
Background technique
Intellectual turbine fuel pump extensively applies in the vehicle fuel supply system, and it is to be realized by the conversion of the momentum between the fluid molecule fully that the fuel delivery of pump and pressure raise.Its structure is very simple, only is made up of turbine, pump chamber, pump cover.Pump chamber is relative with pump cover thirty years of age, middlely forms a cavity, and turbine is positioned at wherein.Many turbine blades are arranged on the turbine circumference, and the position corresponding with turbine has suitable runner on the pump chamber.When the driven by motor turbine rotated, the runner of fuel oil in flange that turbine drives by the filler opening person who lives in exile extruded from oil outlet.Yet there is following shortcoming in actual use in existing intellectual turbine pump:
1, adopt the physics commutator, to the corrosion-resistant of methyl alcohol and ethanol fuel oil, working life is low.
2, the undulating value of rotating speed is bigger, causes the flow value instability.
3, owing to brush and commutator direct friction, vibration and the noise of generation are big, and noise has become a unsurmountable difficult problem.
Practical new shape content
The purpose of this utility model is to provide a kind of long service life, flow value is stable and vibration and the low brushless high pressure fuel pump of noise.
For reaching described purpose, the invention provides a kind of brushless high pressure fuel pump, comprise: it is upright to go out the font group, groups of holders is upright, stator pack is upright, utmost point shell, rotor set is upright and the pump chamber group is upright, going out the upright upright upper end of groups of holders that covers on of font group is connected with an end of utmost point shell, stator pack is upright to be connected groups of holders and to make end, rotor set is stood to wear to penetrate in stator pack is upright and is connected with groups of holders is upright, the pump chamber group is upright to be connected to rotor set and to make end, and be arranged on utmost point shell inside, this fuel pump also comprises a controller, this controller further comprises primary processor, signal plate and driving plate, signal plate and driving plate are arranged on groups of holders and stand, and primary processor is connected with driving plate with signal plate respectively, and driving plate is connected with stator pack is upright.
According to the described brushless high pressure fuel pump of the utility model preferred embodiment, this driving plate is connected by the three-phase coiling with stator pack is upright.
According to the described brushless high pressure fuel pump of the utility model preferred embodiment, it also comprises: Heat sink, Heat sink are arranged on upright the going up of groups of holders and are connected with driving plate.
According to the described brushless high pressure fuel pump of the utility model preferred embodiment, this primary processor is integrated in the signal plate.
According to the described brushless high pressure fuel pump of the utility model preferred embodiment, this controller is connected with vehicle-mounted ECU.
Concrete working procedure of the present utility model is as follows: after connecting power supply, controller is by detecting motor three-phase counterelectromotive force, determine brshless DC motor commutation position, control driving plate inversion output then, allow inverter circuit that direct current copped wave is outputed to brushless direct-current pump stator coil, the upright operation of pump internal rotor group then, electric energy is changed into kinetic energy, drive the upright interior turbine one superhigh speed rotation of pump chamber group, the upright beginning of pump chamber group pump oil, during fluid process support, support is provided with special-purpose radiating fin, will take away big amount temperature on the support, thereby the assurance circuit board is effectively worked, and gives system's fuel feeding through oil outlet then.
In addition, controller adopts speed closed loop control, when underfed, signal plate can judge automatically and instruction is conveyed to primary processor that primary processor control driving plate improves motor speed, gives flow-compensated, flow is crossed when sufficient, signal plate judges that automatically primary processor control driving plate reduces motor speed, and flow is descended.And controller is connected with vehicle-mounted ECU, can accomplish fuel feeding as required according to the required oil mass of motor.
The utility model improves existing serial fuel pump, and adopting electronic commutator to substitute has the physics commutator now, and brushless motor control system is placed motor internal, adopts actuating motor as the power of fuel pump.Compared with prior art, the utlity model has following advantage:
1, adopt the commutation and speed control of position-sensor-free, adaptation methyl alcohol and ethanol fuel oil, long service life, and vibration and noise are little;
2, controller adopts speed closed loop control, and flow value is stable, and the stability of a system is good;
3, communicate by letter with external ECU, make oil pump to regulate working flow and speed in real time according to loading condition;
But 4, primary processor memory load parameter makes the various workplaces of adaptation that driver can be flexible;
5, controller adopts the mounting type that split connects, and driving plate separates with signal plate, makes system's electromagnetic interference performance good.
Description of drawings
Fig. 1 is the brushless high pressure fuel pump structure of the utility model sectional view;
Fig. 2 is the utility model embodiment's the upright structural representation of groups of holders;
Fig. 3 is the structure principle chart of the utility model embodiment's controller.
Embodiment
Below in conjunction with accompanying drawing, specify the utility model.
See also Fig. 1 to Fig. 3, a kind of brushless high pressure fuel pump, comprise: go out font group upright 1, groups of holders upright 2, stator pack upright 3, utmost point shell 4, rotor set upright 5, pump chamber group upright 6 and controller, going out font group upright 1 covers on upright 2 upper ends of groups of holders and is connected with an end of utmost point shell 4, stator pack upright 3 is connected upright 2 lower ends of groups of holders, rotor set upright 5 is worn to penetrate in stator pack upright 3 and is connected with groups of holders upright 2, pump chamber group upright 6 is connected to upright 5 lower ends of rotor set, and be arranged on utmost point shell 4 inside, controller further comprises primary processor, signal plate 7 and driving plate 8, signal plate 7 and driving plate 8 are arranged on the groups of holders upright 2, primary processor is integrated in the signal plate 7, it is connected with driving plate 8 with signal plate 7 respectively, and driving plate 8 is connected with stator pack upright 3.
Further, as shown in Figure 2, the brushless high pressure fuel pump of the utility model also comprises Heat sink 9, and Heat sink 9 is arranged on the groups of holders upright 2 and is connected with driving plate 8.
More specifically, driving plate 8 is upright by coiling U with stator pack, V, and the W triple line connects.Controller is connected with vehicle-mounted ECU.
Concrete working procedure of the present utility model is as follows: after connecting power supply, controller is by detecting motor three-phase counterelectromotive force, determine brshless DC motor commutation position, control driving plate inversion output then, allow inverter circuit that direct current copped wave is outputed to brushless direct-current pump stator coil, the upright operation of pump internal rotor group then, electric energy is changed into kinetic energy, drive the upright interior turbine one superhigh speed rotation of pump chamber group, the upright beginning of pump chamber group pump oil, during fluid process support, support is provided with special-purpose radiating fin, will take away big amount temperature on the support, thereby the assurance circuit board is effectively worked, and gives system's fuel feeding through oil outlet then.
As shown in Figure 3, controller adopts speed closed loop control, primary processor is integrated in the signal plate, when underfed, signal plate is judged automatically and instruction is conveyed to primary processor, the primary processor output drive signal is to driving plate, and driving plate improves motor speed according to the driving signal that receives, and gives flow-compensated.Flow is crossed when sufficient, and signal plate judges that automatically the primary processor output drive signal is to driving plate, and driving plate reduces motor speed according to the driving signal that receives, and flow is descended.And controller is connected with vehicle-mounted ECU, can accomplish fuel feeding as required according to the required oil mass of motor.
In sum, compared with prior art, the utlity model has following beneficial effect:
1, adopt the commutation and speed control of position-sensor-free, adaptation methyl alcohol and ethanol fuel oil, long service life, and vibration and noise are little;
2, controller adopts speed closed loop control, and flow value is stable, and the stability of a system is good;
3, communicate by letter with external ECU, make oil pump to regulate working flow and speed in real time according to loading condition;
But 4, primary processor memory load parameter makes the various workplaces of adaptation that driver can be flexible;
5, controller adopts the mounting type that split connects, and driving plate separates with signal plate, makes system's electromagnetic interference performance good.
More than disclosed only be several specific embodiments of the new shape of this practicality, but the new shape of this practicality is not limited thereto, any those skilled in the art can think variation, all should drop on this practicality newly in the protection domain of shape.
Claims (5)
1. brushless high pressure fuel pump, comprise: it is upright to go out the font group, groups of holders is upright, stator pack is upright, utmost point shell, rotor set is upright and the pump chamber group is upright, describedly go out the upright upright upper end of described groups of holders that covers on of font group and be connected with an end of described utmost point shell, described stator pack is upright to be connected described groups of holders and to make end, described rotor set is stood to wear to penetrate in described stator pack is upright and is connected with described groups of holders is upright, described pump chamber group is upright to be connected to described rotor set and to make end, and be arranged on described utmost point shell inside, it is characterized in that, also comprise: controller, described controller further comprises primary processor, signal plate and driving plate, described signal plate and driving plate are arranged on described groups of holders and stand, and described primary processor is connected with driving plate with described signal plate respectively, and described driving plate is connected with described stator pack is upright.
2. brushless high pressure fuel pump as claimed in claim 1 is characterized in that, described driving plate is connected by the three-phase coiling with described stator pack is upright.
3. brushless high pressure fuel pump as claimed in claim 1 is characterized in that, also comprises: Heat sink, described Heat sink are arranged on upright the going up of described groups of holders and are connected with described driving plate.
4. brushless high pressure fuel pump as claimed in claim 1 is characterized in that, described primary processor is integrated in the described signal plate.
5. brushless high pressure fuel pump as claimed in claim 1 is characterized in that, described controller is connected with vehicle-mounted ECU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220718882 CN203051155U (en) | 2012-12-24 | 2012-12-24 | Brushless high pressure fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220718882 CN203051155U (en) | 2012-12-24 | 2012-12-24 | Brushless high pressure fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051155U true CN203051155U (en) | 2013-07-10 |
Family
ID=48734113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220718882 Expired - Fee Related CN203051155U (en) | 2012-12-24 | 2012-12-24 | Brushless high pressure fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051155U (en) |
-
2012
- 2012-12-24 CN CN 201220718882 patent/CN203051155U/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: 20130710 Termination date: 20171224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |