CN206419113U - A kind of flexible fuel oil supply system - Google Patents
A kind of flexible fuel oil supply system Download PDFInfo
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- CN206419113U CN206419113U CN201621252959.5U CN201621252959U CN206419113U CN 206419113 U CN206419113 U CN 206419113U CN 201621252959 U CN201621252959 U CN 201621252959U CN 206419113 U CN206419113 U CN 206419113U
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- fuel
- pressure
- petroleum pipeline
- atomizer
- pressure sensor
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Abstract
The utility model proposes a kind of flexible fuel oil supply system, including fuel tank, electric fuel punp, petroleum pipeline, regulation oil pipe, pressure sensor, pressure regulator and atomizer, the fuel tank is respectively connecting to several atomizers by the petroleum pipeline with electric fuel punp, petroleum pipeline is connected to fuel tank provided with regulation oil pipe, and the regulation oil pipe is provided with pressure regulator；Each atomizer circuit is connected to expansible control interface, and the petroleum pipeline is connected to pressure sensor.The discharge coefficient of atomizer depends on the size of metering-orifice and the pressure difference of nozzle exit end, metering-orifice can not change, but pressure difference can but change, principle of the present utility model is exactly to change discharge coefficient by changing its charge oil pressure to reach the air-fuel ratio of the purpose, the then stable setting of the closed loop ability of recycling EFI self-injections that reduce injection pulse width difference.
Description
Technical field
The utility model is related to a kind of flexible fuel oil supply system.
Background technology
With the fast development of automobile industry, the economy and environment-friendly type of fuel increasingly attract attention, wherein substitute fuel
Methanol is especially prominent, but the air-fuel ratio of substitute fuel has larger difference with gasoline, such as the air-fuel ratio of methanol is 6.4 or so,
And gasoline for 14.7 or so, therefore the same corresponding fuel injection amount of air input of engine by air has larger difference.Due to list
Gasoline injection system reaches the purpose of control fuel delivery by controlling gasoline pulsewidth, and has a range of closed loop finishing energy
Power, therefore when injection pulse width needed for same air-fuel ratio is more or less the same, single gasoline injection system can be with normal work.
Within the specific limits, its charge oil pressure is a definite value to pressure, so that atomizer is in the state of work, outlet
Side pressure difference is constant, can only control fuel delivery by adjusting injection pulse width.When air-fuel ratio variation is larger needed for fuel system, than
When such as using methanol (air-fuel ratio 6.4) or other substitute fuel replacing gasoline (air-fuel ratios 14.7), in the feelings that charge oil pressure is constant
Under condition, during injection methanol the injection pulse width of nozzle than injected petrol when double many, the service life to nozzle can be produced
Very big influence even can not be used normally due to the underfed of nozzle.
Utility model content
The utility model proposes a kind of flexible fuel oil supply system, the methanol gasoline fuel feeding system of low ratio in being applied to
System, can also be applied to other substitute fuel oil supply systems.
What the utility model was realized particular by following technical scheme：
A kind of flexible fuel oil supply system, including fuel tank, electric fuel punp, petroleum pipeline, regulation oil pipe, pressure sensor,
Pressure regulator and atomizer, the fuel tank are respectively connecting to several atomizers, oil transportation by the petroleum pipeline with electric fuel punp
Pipe is connected to fuel tank provided with regulation oil pipe, and the regulation oil pipe is provided with pressure regulator；Each atomizer circuit is connected to and can expanded
Control interface is opened up, the petroleum pipeline is connected to pressure sensor.
Preferably, the pressure sensor circuit is connected to controller, and the controller circuitry is connected to electric fuel punp,
And the charge oil pressure of electric fuel punp is controlled according to the numerical signal of pressure sensor.
What the utility model was produced has the beneficial effect that：The discharge coefficient of atomizer depends on the size and jet expansion of metering-orifice
The pressure difference at end, metering-orifice can not change, but pressure difference can but change, and principle of the present utility model is exactly by changing its fuel feeding pressure
Power, so as to reach the purpose of reduction injection pulse width difference, then recycles the closed loop ability of EFI self-injections to change discharge coefficient
The air-fuel ratio of stable setting.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is flexible fuel oil supply system structural representation in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
A kind of flexible fuel oil supply system as shown in Figure 1, including fuel tank 1, electric fuel punp 2, petroleum pipeline 11, regulation oil pipe
12nd, pressure sensor 7, pressure regulator 3 and atomizer 5, the fuel tank 1 are connected respectively by the petroleum pipeline 11 with electric fuel punp 2
Several atomizers 5 are connected to, petroleum pipeline 11 is connected to fuel tank 1 provided with regulation oil pipe 12, and the regulation oil pipe 12 is provided with tune
Depressor 3；Each circuit of atomizer 5 is connected to expansible control interface 4, and the petroleum pipeline 11 is connected to pressure sensor 7, and pressure is passed
Sensor 7 can detect the oil pressure on petroleum pipeline 11, and oil pressure regulation is carried out as needed.
The circuit of pressure sensor 7 is connected to controller 8 in such as Fig. 2, and the circuit of controller 8 is connected to electric fuel punp 2, and
The charge oil pressure of electric fuel punp 2 is controlled according to the numerical signal of pressure sensor 7.The present embodiment is according to substitute fuel fuel feeding system
Charge oil pressure needed for system sets pressure parameter itself detecting to controller 8 or by sensitive pressure sensor 7, feeds back to control
Device 8, then the charge oil pressure according to needed for alternative fuel systems control the charge oil pressure of electric fuel punp 2.Wherein pressure regulator 3 is
Ensure that oil supply system oil pressure ensures in certain limit, play a part of protecting the safe oil pressure of oil supply system.Pass through in the embodiment
The charge oil pressure of electric fuel punp 2 is adjusted, such as increases the pressure of oil supply system, is ensureing the constant feelings of the emitted dose of atomizer 5
Under condition, the injection pulse width adjustable range of atomizer 5 can be relatively reduced, is conducive to the use of atomizer.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (2)
1. a kind of flexible fuel oil supply system, it is characterised in that including fuel tank (1), electric fuel punp (2), petroleum pipeline (11), tune
Oil-saving pipe (12), pressure sensor (7), pressure regulator (3) and atomizer (5), the fuel tank (1) is by with electric fuel punp
(2) petroleum pipeline (11) is respectively connecting to several atomizers (5), and petroleum pipeline (11) is connected to oil provided with regulation oil pipe (12)
Case (1), the regulation oil pipe (12) is provided with pressure regulator (3)；Each atomizer (5) circuit is connected to expansible control interface
(4), the petroleum pipeline (11) is connected to pressure sensor (7).
2. a kind of flexible fuel oil supply system as claimed in claim 1, it is characterised in that pressure sensor (7) circuit
Controller (8) is connected to, controller (8) circuit is connected to electric fuel punp (2), and according to the number of pressure sensor (7)
The charge oil pressure of value signal control electric fuel punp (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621252959.5U CN206419113U (en) | 2016-11-18 | 2016-11-18 | A kind of flexible fuel oil supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621252959.5U CN206419113U (en) | 2016-11-18 | 2016-11-18 | A kind of flexible fuel oil supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206419113U true CN206419113U (en) | 2017-08-18 |
Family
ID=59578514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621252959.5U Active CN206419113U (en) | 2016-11-18 | 2016-11-18 | A kind of flexible fuel oil supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206419113U (en) |
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2016
- 2016-11-18 CN CN201621252959.5U patent/CN206419113U/en active Active
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