CN204003212U - A kind of single pump double track voltage stabilizing fuel oil supply system - Google Patents
A kind of single pump double track voltage stabilizing fuel oil supply system Download PDFInfo
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- CN204003212U CN204003212U CN201420429684.2U CN201420429684U CN204003212U CN 204003212 U CN204003212 U CN 204003212U CN 201420429684 U CN201420429684 U CN 201420429684U CN 204003212 U CN204003212 U CN 204003212U
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- fuel
- high pressure
- oil
- supply system
- oil supply
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Abstract
The utility model discloses a kind of single pump double track voltage stabilizing fuel oil supply system, comprise by driven by servomotor for the high pressure oil pump of high pressure fuel is provided, the oil outlet end of high pressure oil pump is connected with at least two fuel feeding branch roads, on every fuel feeding branch road, all string is provided with Electromagnetic Flow modulating valve and for storing the accumulator of high pressure fuel, the output terminal of every fuel feeding branch road respectively with for the corresponding connection of oil sprayer to engine chamber by high pressure fuel injection.Single pump double track voltage stabilizing fuel oil supply system of the present utility model adopts high pressure oil pump and corresponding actuating motor to connect a plurality of accumulators and Electromagnetic Flow modulating valve and corresponds to a plurality of burners and provide work required amount of fuel, has met fuel oil supply system lightweight requirements; Adopt flow transducer to detect the actual fuel injection amount of oil sprayer, ECU (Electrical Control Unit) is controlled the rotating speed of actuating motor and the aperture of flow control valve, makes the amount of fuel of multichannel oil rail reach setting value, and system architecture is simple, and energy consumption is low.
Description
Technical field
The utility model belongs to fuel oil supply system field, is specifically related to a kind of single pump double track voltage stabilizing fuel oil supply system.
Background technique
Burner is that air and fuel are converted so that its clean-burning equipment by proper proportion is mixed by pre-mixing apparatus, take Stirling engine as example: Stirling engine is a kind of closed cycle reciprocating piston type heat engine of external combustion, be different from and rely on fuel in engine interior burning, to obtain the internal-combustion engine of power.Stirling engine uses gas as working medium, continuous burning in the firing chamber of fuel outside cylinder, by heater, pass to working medium, working medium is not participated in burning directly, do not change yet, heater makes that when gases are heated, they expand, meet cold compression and produce powered piston movement, and expanding gas is cooling at cold air chamber, carries out repeatedly such cyclic process.
For the Stirling engine that is applied to car and boat or submarine power, fuel oil supply system is one of its core system, and its performance characteristic is determining the overall performance of Stirling engine.
In existing Stirling engine fuel oil supply system, vortex atomizing nozzle is worked in opening continuous injection mode, and accurately stable for guaranteeing fuel injection quantity, each oil sprayer needs a set of independently equipment to provide high pressure fuel for it.As Chinese Patent Application No. 200910304161.9 discloses a kind of stabilized voltage fuel injection system, mainly comprising high pressure oil pump, accumulator, oil sprayer, flow transducer, actuating motor, motor drive module and ECU (Electrical Control Unit) and pressure transmitter, is exactly that to adopt a set of fuel oil supply system be an engine oil in this system.If be two Stirling engine fuel feeding, every motor is all wanted a set of fuel oil supply system of corresponding configuration, and this will certainly increase the volume and weight of fuel oil supply system.
At single pump, be in the system of two Stirling engine fuel feeding, have a kind of scheme to be: high pressure oil pump provides high pressure fuel for a public accumulator, installs relief valve, and separates 2 branch roads from accumulator, every branch road installing pressure regulator valve on accumulator.According to maximum fuel flow set relief valve cracking pressure value in two branch roads, pressure transducer collect fuel pressure signal in accumulator and this signal feed back to ECU (Electrical Control Unit), ECU (Electrical Control Unit) is processed this pressure signal and the contrast of heel pressure setting value, if this force value is greater than pressure set points, ECU (Electrical Control Unit) is sent control command relief valve is opened, and in accumulator, fuel oil makes fuel pressure be stabilized in setting value by pressure release.If certain branch road pressure regulator valve turns down, due to throttling action, the pressure in accumulator can raise, and after pressure surpasses setting value, relief valve is opened, and part high pressure fuel can vent by relief valve.Therefore this kind of scheme energy consumption is higher.
Model utility content
The purpose of this utility model is to provide a kind of single pump double track voltage stabilizing fuel oil supply system, to realize a set of oil supply system at least two burner fuel feeding, meets fuel oil supply system lightweight requirements.
In order to realize above object, the technological scheme that the utility model adopts is: a kind of single pump double track voltage stabilizing fuel oil supply system, comprise by driven by servomotor for the high pressure oil pump of high pressure fuel is provided, the oil outlet end of described high pressure oil pump is connected with at least two fuel feeding branch roads, on every fuel feeding branch road, all string is provided with an Electromagnetic Flow modulating valve and one for storing the accumulator of high pressure fuel, the output terminal of every fuel feeding branch road respectively with one for the corresponding connection of oil sprayer to engine chamber by high pressure fuel injection.
This system also comprises ECU (Electrical Control Unit), and described Electromagnetic Flow modulating valve is by corresponding control valve opening driver module and this ECU (Electrical Control Unit) control connection.
On every fuel feeding branch road, be all serially connected with for measuring the flow transducer of fuel flow.
Single pump double track voltage stabilizing fuel oil supply system mesohigh oil pump of the present utility model passes through driven by servomotor, adopt a high pressure oil pump and corresponding actuating motor to connect a plurality of accumulators and Electromagnetic Flow modulating valve and correspond to a plurality of burners and provide work required amount of fuel, met fuel oil supply system lightweight requirements; Adopt flow transducer to detect the actual fuel injection amount of oil sprayer, ECU (Electrical Control Unit) is controlled the aperture of rotating speed and the flow control valve of actuating motor by open loop control and two kinds of modes of closed loop control, make the amount of fuel of multichannel oil rail reach setting value, system architecture is simple, and energy consumption is low.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
Be illustrated in figure 1 the utility model list pump double track voltage stabilizing fuel oil supply system embodiment's structure principle chart, as seen from the figure, this system comprises by actuating motor 18 and driving for the high pressure oil pump 1 of high pressure fuel is provided, and this high pressure oil pump is serially connected in oil circuit for pressurizeing to provide high pressure fuel by the fuel oil of low pressure oil way D; The oil outlet end of high pressure oil pump 1 is connected with two fuel feeding branch roads, and on two fuel feeding branch roads, string is provided with for storing the accumulator 5,6 of high pressure fuel respectively, in the front end correspondence of accumulator 5,6, is provided with Electromagnetic Flow modulating valve 3,4; The output terminal of fuel feeding branch road respectively with for the corresponding connection of oil sprayer 11,12 to engine chamber by high pressure fuel injection.On fuel feeding branch road, be serially connected with for measuring the flow transducer 9,10 of oil sprayer fuel flow, the signal of this flow transducer is connected in ECU (Electrical Control Unit) 14.
A fuel control valve 2 is also installed on high pressure oil pump 1, by fuel control valve driver module 16, is connected with ECU (Electrical Control Unit).This fuel control valve 2 can be controlled high pressure oil pump 1 and when starting, enter the low pressure oil mass in this oil pump.
In ECU (Electrical Control Unit) 14, be also provided with upper-position unit interface 13, upper-position unit is by sending flow instruction to ECU (Electrical Control Unit) 14, and ECU (Electrical Control Unit) can be controlled actuating motor rotating speed and Electromagnetic Flow control valve opening after receiving instruction.
Two-way accumulator 5,6 in parallel in system, by the pressure stabilization function of accumulator, can make the fuel oil fluctuation in oily rail less.Pressure transducer 7,8 is installed on accumulator 5,6, this pressure transducer 7,8 is connected with ECU (Electrical Control Unit) 14, if flow transducer cisco unity malfunction, according to the algebraic relation of pressure versus flow, can calculate the flow in fuel-displaced rail, pressure transducer can be used as substituting of flow transducer, makes system more safe and reliable.
Electromagnetic Flow modulating valve the 3, the 4th, the actuator of ECU (Electrical Control Unit), by corresponding control valve opening driver module and this ECU (Electrical Control Unit) control connection, the instruction that ECU (Electrical Control Unit) is sent acts on Electromagnetic Flow modulating valve by control valve opening driver module, and Electromagnetic Flow modulating valve regulates the size of pipeline intermediate fuel oil flow by changing flow area.
Working principle of the present utility model is as follows: the input end connection traffic sensor 9,10 of ECU (Electrical Control Unit) 14 using obtain flow transducer flux signal as feedback signal, its output terminal connects motor drive module 15 and control valve opening driver module, the servo driver 17 of controlling actuating motor 18 by motor drive module 15 is adjusted the rotating speed of actuating motor, thereby controls and Flux Valve Control instruction in order to output motor;---Electromagnetic Flow control valve opening---fuel flow MAP data that prestore actuating motor rotating speed in ECU (Electrical Control Unit), the flow instruction sending according to upper-position unit, ECU (Electrical Control Unit) regulates actuating motor rotating speed and Electromagnetic Flow control valve opening, finally makes the amount of fuel of two road binders rails reach the required amount of fuel of burner operation.
If wish, two burner fuel amounts are identical, flow control valve 3,4 standard-sized sheets now, and ECU (Electrical Control Unit) 14, according to actuating motor rotating speed---the fuel flow MAP data that embed, by regulating motor speed, makes two road binders rails that identical required oil mass is provided.If wish that two burner fuel amounts are different, the fuel flow of a burner is larger so, other one less, ECU (Electrical Control Unit) reduces by the Electromagnetic Flow control valve opening less that burner of fuel flow, and regulate actuating motor 18 rotating speeds simultaneously, finally make the fuel supply flow rate of two road binders rails reach setting value.First system carries out open loop control by MAP data, and then the flow of setting in the flux signal that flow transducer is fed back to and upper-position unit is compared, by Closed-loop Control Strategy, finely tune motor speed and control valve opening, to make fuel supply flow rate level off to fast setting value.
Above embodiment is only for helping to understand core concept of the present utility model; can not limit the utility model with this; for those skilled in the art; every foundation thought of the present utility model; the utility model is modified or is equal to replacement; any change of doing in specific embodiments and applications, within all should being included in protection domain of the present utility model.
Claims (3)
1. a single pump double track voltage stabilizing fuel oil supply system, comprise by driven by servomotor for the high pressure oil pump of high pressure fuel is provided, it is characterized in that: the oil outlet end of described high pressure oil pump is connected with at least two fuel feeding branch roads, on every fuel feeding branch road, all string is provided with an Electromagnetic Flow modulating valve and one for storing the accumulator of high pressure fuel, the output terminal of every fuel feeding branch road respectively with one for the corresponding connection of oil sprayer to engine chamber by high pressure fuel injection.
2. single pump double track voltage stabilizing fuel oil supply system according to claim 1, is characterized in that: this system also comprises ECU (Electrical Control Unit), and described Electromagnetic Flow modulating valve is by corresponding control valve opening driver module and this ECU (Electrical Control Unit) control connection.
3. single pump double track voltage stabilizing fuel oil supply system according to claim 1, is characterized in that: on every fuel feeding branch road, be all serially connected with for measuring the flow transducer of fuel flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429684.2U CN204003212U (en) | 2014-07-30 | 2014-07-30 | A kind of single pump double track voltage stabilizing fuel oil supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420429684.2U CN204003212U (en) | 2014-07-30 | 2014-07-30 | A kind of single pump double track voltage stabilizing fuel oil supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003212U true CN204003212U (en) | 2014-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420429684.2U Expired - Fee Related CN204003212U (en) | 2014-07-30 | 2014-07-30 | A kind of single pump double track voltage stabilizing fuel oil supply system |
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| CN (1) | CN204003212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214028A (en) * | 2014-07-30 | 2014-12-17 | 河南科技大学 | Single-pump dual-rail fuel oil supply system |
-
2014
- 2014-07-30 CN CN201420429684.2U patent/CN204003212U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104214028A (en) * | 2014-07-30 | 2014-12-17 | 河南科技大学 | Single-pump dual-rail fuel oil supply system |
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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: 20141210 Termination date: 20160730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |