CN114933274A - Multi-mode fuel oil filling system and control method thereof - Google Patents
Multi-mode fuel oil filling system and control method thereof Download PDFInfo
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- CN114933274A CN114933274A CN202210618821.6A CN202210618821A CN114933274A CN 114933274 A CN114933274 A CN 114933274A CN 202210618821 A CN202210618821 A CN 202210618821A CN 114933274 A CN114933274 A CN 114933274A
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- 239000000295 fuel oil Substances 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000003921 oil Substances 0.000 claims abstract description 259
- 239000000654 additive Substances 0.000 claims abstract description 173
- 230000000996 additive effect Effects 0.000 claims abstract description 163
- 239000000446 fuel Substances 0.000 claims abstract description 125
- 238000011084 recovery Methods 0.000 claims description 15
- 230000002829 reductive effect Effects 0.000 claims description 11
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 description 53
- 238000002347 injection Methods 0.000 description 17
- 239000007924 injection Substances 0.000 description 17
- 238000002156 mixing Methods 0.000 description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000003747 fuel oil additive Substances 0.000 description 5
- 230000008021 deposition Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000002816 fuel additive Substances 0.000 description 4
- 239000003502 gasoline Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 239000010763 heavy fuel oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000036961 partial effect Effects 0.000 description 2
- 229920002552 poly(isobornyl acrylate) polymer Polymers 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/02—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring liquids other than fuel or lubricants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/78—Arrangements of storage tanks, reservoirs or pipe-lines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention provides a multi-mode fuel filling system, which comprises an oil pipe, wherein an oil pump, a fuel one-way valve, a pilot mixer and an oil meter are sequentially arranged in the oil pipe along the flowing direction of fuel oil; the system comprises an additive system and a three-position three-way electromagnetic valve, wherein the additive system comprises an additive pipe, the additive pipe is connected with an inlet of the three-position three-way electromagnetic valve after being provided with a flow meter along the flowing direction of an additive, a first outlet of the three-position three-way electromagnetic valve is connected with a front guide mixer, and a second outlet of the three-position three-way electromagnetic valve is connected to an oil gun; an oil pipe between the front guide mixer and the oil meter is connected with an oil pipe between the oil pump and the fuel oil one-way valve through an oil return pipe, the oil return pipe is sequentially provided with an oil return one-way valve and a difference oil collection meter along the fuel oil return direction, and the oil pipe between the fuel oil one-way valve and the oil pump or the oil return pipe at the downstream of the difference oil collection meter is provided with a fuel oil pressure release valve. The fuel adding method has the advantage that different fuel adding modes can be selected according to user requirements.
Description
Technical Field
The invention relates to the field of refueling equipment, in particular to a multi-mode fuel filling system and a control method thereof.
Background
The engine of the present motor vehicle is divided into direct injection type and electric injection type according to the fuel injection mode, wherein for daily maintenance, the additive addition amount selected by different fuel injection modes is different, because the direct injection system in the cylinder directly injects the gasoline into the combustion chamber, the additive chemical component which can adapt to the high-temperature and high-pressure environment and does not generate deposit is only PEA, while the main component of the third generation 'FUEL BAO' is mainly PIBA, the additive can effectively remove the carbon deposit in the multipoint electric injection vehicle, but the volatility is poor under the high-temperature and high-pressure environment (combustion chamber) of the direct injection in the cylinder, the deposit can be quickly formed, so the traditional third generation 'FUEL BAO' added into the direct injection vehicle type in the cylinder can not only clean the carbon deposit in the combustion chamber, but also seriously increase the accumulation of the carbon deposit;
therefore, whether the vehicle is an electric injection vehicle or a direct injection vehicle, the fourth generation PEA (polyether amine) is preferably selected to reduce or inhibit and eliminate the generation of carbon deposit; the retail so-called fuel oil treasures of the gas station do not mark the third generation or the fourth generation, namely no matter in an electronic injection type or a direct injection type, the fuel oil treasures with the same formula are used, and the specific PEA and PIBA content can not be effectively added according to the type of the vehicle, so that the serious condition influences the normal operation of the engine, the price is high, but the effect is not seen;
at present, for direct injection vehicles, no matter whether the direct injection vehicles are self-contained or use bottled fuel additives of gas stations, the blended gasoline amount has fixed proportion requirements, for example, the traditional one-tank fuel additives are blended with 40-60 liters of gasoline, for vehicles with different fuel tank capacities, the proportion difference is large under the state of full-oil filling, for example, the optimal blending amount is not easy to control during half tank oil filling, the fuel additives are diluted to cause weakening of cleaning effect due to forced full-oil filling of the fuel tanks when the residual gasoline with the fuel additives in the fuel tanks needs to go out, the blending amounts of the direct injection vehicles and the electric injection vehicles are different under different working conditions (inhibiting carbon deposition and removing carbon deposition), and the like.
Disclosure of Invention
Based on the above problems, the present invention aims to provide a multi-mode fuel filling system and a control method thereof, which can select different fuel filling modes according to user requirements.
Aiming at the problems, the following technical scheme is provided: a multi-mode fuel oil filling system comprises an oil pipe, wherein the oil pipe is sequentially provided with an oil pump, a fuel oil one-way valve, a pilot mixer and an oil gauge along the flowing direction of fuel oil; the system comprises an additive feeding system, wherein the additive feeding system comprises an additive feeding pipe, the additive feeding pipe is provided with a flow meter along the additive flowing direction and then is connected with an inlet of a three-position three-way electromagnetic valve, a first outlet of the three-position three-way electromagnetic valve is connected with a front guide mixer, and a second outlet of the three-position three-way electromagnetic valve is connected with an oil gun; an oil pipe between the front guide mixer and the oil meter is connected with an oil pipe between the oil pump and the fuel oil one-way valve through an oil return pipe, the oil return pipe is sequentially provided with an oil return one-way valve and a difference oil collection meter along the fuel oil return direction, and the oil pipe between the fuel oil one-way valve and the oil pump or the oil return pipe at the downstream of the difference oil collection meter is provided with a fuel oil pressure release valve.
In the structure, the three-position three-way electromagnetic valve can cut off the communication between the inlet and the first outlet and the second outlet in time when power is off accidentally, so that the situation that the additive is excessively added due to the fact that the additive is reset and pumped out after a secondary power-on occurs is avoided; when the additive is injected into the front guide mixer through the first outlet of the three-position three-way electromagnetic valve, the fuel in the front guide mixer can be replaced and is discharged to the fuel pressure release valve through the oil return pipe, and the volume of the fuel discharged through the oil return pipe is equal to the volume of the additive injected into the front guide mixer, so that the additive amount of the additive can be obtained by directly measuring the volume of the flowing fuel through the differential oil collection meter, and the later settlement of the additive cost is facilitated; a second outlet of the three-position three-way electromagnetic valve is connected to the oil gun to realize fuel oil addition and additive addition;
the additive injected into the pilot mixer through the first outlet is suitable for being used by an owner under the condition that the owner knows the fuel quantity when the fuel tank of the vehicle is filled with the additive at the bottom; or the fuel tank contains half tank of fuel oil without additive, and the vehicle owner knows the capacity of the fuel tank when the fuel tank is full and needs to use the fuel tank in the state of adding the additive into the whole tank of fuel oil;
when the additive is output through the second outlet, the output quantity of the additive and the output quantity of the fuel oil are output in equal proportion, and the fuel oil additive is suitable for the fuel oil containing the additive in a half tank in the fuel oil tank, but the fuel oil with the additive is not required to be filled when the fuel oil is not filled.
The invention is further set that the pilot mixer comprises a cylindrical temporary storage cavity, the downstream of the fuel check valve is connected with the rear end of the temporary storage cavity, and the front end of the temporary storage cavity is communicated with the fuel gauge; the fuel oil flows from the rear end to the front end of the temporary storage cavity; and a first outlet of the three-position three-way electromagnetic valve is connected with the rear end of the temporary storage cavity.
In the structure, the temporary storage cavity is used for temporarily storing the additive, so that the additive is directly injected into the oil tank through fuel oil in the early stage of refueling.
The invention is further arranged in that a turbulence shaft which is concentric with the temporary storage cavity and can rotate relative to the temporary storage cavity is arranged in the temporary storage cavity, turbulence blades are arranged on the turbulence shaft, and the tail ends of the turbulence blades extend to a position close to the inner wall of the temporary storage cavity and drive the turbulence shaft to rotate under the pushing of additives or fuel oil.
In the structure, when the thick additive enters the oil return pipe to drive and displace the fuel oil, the flow velocity of the turbulent flow blade is slow, so that turbulent flow can be reduced, and partial additive is prevented from being discharged from the oil return pipe along with the fuel oil due to the mixing of the entering additive and the fuel oil; when the additive is added and the oil is added, the thinner fuel oil directly scours the additive to be mixed and flows to the oil gun through the fuel flow meter, and the turbulence blades can be directly impacted to drive the turbulence shafts to rotate, so that greater turbulence is formed on the inner wall of the temporary storage cavity, the additive attached to the inner wall of the temporary storage cavity is scoured in an auxiliary mode, and the mixing effect of the earlier stage fuel oil when the additive is entrained with the fuel oil and output is improved.
The invention is further arranged that the front guide mixer is vertically or obliquely arranged, and the front end of the temporary storage cavity is higher than the rear end of the temporary storage cavity in the horizontal direction.
In the structure, the density of the additive is greater than that of fuel oil, and the bottom sinking effect is achieved, so that the additive is vertically or obliquely placed to be more beneficial to gathering at the bottom of the front guide mixer when entering the front guide mixer, and the additive is prevented from being carried and discharged together when the fuel oil at the top of the front guide mixer is discharged to the oil return pipe.
The oil-gas recovery device is further provided with an oil-gas recovery pipe, and the oil-gas recovery pipe is sequentially provided with an oil-gas recovery pump and an oil-gas one-way valve from the oil gun to the oil tank.
In the structure, the oil gas recovery pipe is used for recovering oil gas discharged from an automobile oil tank during refueling.
A control method of a multi-mode fuel oil filling system is characterized in that an oil pipe between an oil pump and a fuel oil one-way valve is provided with an oil pressure sensor which controls the start and stop of the oil pump by detecting the pressure of the oil pipe, the oil pressure sensor is provided with a lower limit threshold and an upper limit threshold, the oil pump is started when the pressure of the oil pipe reaches the lower limit threshold, the oil pump is closed when the pressure of the oil pipe reaches the upper limit threshold, and the pressure discharge pressure of a fuel oil pressure release valve is higher than the upper limit threshold of the oil pressure sensor; an adding pump driven by a stepping motor or a servo motor is arranged at the downstream of the flowmeter;
in the structure, the adding pump is driven by the stepping motor or the servo motor, so that the output proportion of the additive can be effectively controlled, and the micro-amount accurate adding is realized.
When pure fuel oil is filled, the three-position three-way electromagnetic valve is powered off, the inlet, the first outlet and the second outlet of the three-position three-way electromagnetic valve are all in a closed state, an oil gun at the downstream of the fuel gauge is started, an oil pump is started to pump oil when an oil pressure sensor detects that the pressure of an oil pipe is reduced to a lower limit threshold value, the fuel oil is supplied to the oil gun for filling the fuel oil after passing through the fuel oil one-way valve, the front guide mixer and the fuel gauge, the oil pump continues to operate when the oil gun is closed, the oil pump is closed when the oil pressure sensor detects that the pressure of the oil pipe is increased to an upper limit threshold value, and the fuel gauge counts the amount of the filled fuel oil and converts the amount of the filled fuel oil into the amount of the fuel oil;
in the method, the pure fuel oil is suitable for being used in a state that a user does not need to add additives.
When quantitatively filling, an electromagnet on one side of the three-position three-way electromagnetic valve is electrified, an inlet of the three-position three-way electromagnetic valve is communicated with a first outlet, and meanwhile, the inlet is closed off from a second outlet, according to the rise number of fuel with the set addition percentage or the required addition of the additive, the additive in an addition pipe is fed into an inner cavity of a leading mixer from the rear end of the leading mixer after the flow is counted by a flow meter, the fuel in the inner cavity of the front end of the leading mixer is discharged into a return oil pipe, the discharged fuel sequentially passes through a return oil one-way valve and a difference fuel collection meter and then is discharged through a fuel relief valve, then the three-position three-way electromagnetic valve is powered off, the inlet, the first outlet and the second outlet of the three-position three-way electromagnetic valve are all in a closed state, an oil gun at the downstream of the oil meter is opened, an oil pump is started to pump the oil when an oil pressure sensor detects that the pressure of an oil pipe is reduced to a lower threshold value, the additive in the inner cavity of the rear end of the leading mixer is discharged to the oil gun, then, flushing the inner cavity of the pilot mixer by using fuel oil during filling, when an oil gun is closed, continuing to operate an oil pump, when an oil pressure sensor detects that the pressure of an oil pipe is increased to an upper threshold value, closing the oil pump, converting the oil return amount of a difference oil collection meter into the additive addition amount, and converting the oil return amount into the fuel amount after deducting the metering amount of the difference oil collection meter;
in the method, the additive which is injected into the pilot mixer through the first outlet is quantitatively injected, so that the additive is suitable for being used when an oil tank of a vehicle is at the bottom and an owner knows the fuel quantity when the vehicle is full; or the fuel tank contains half fuel oil without additive, and the vehicle owner knows the capacity when the fuel tank is full and needs to use the whole fuel oil in the state of additive.
When equal proportion is filled, an electromagnet on the other side of the three-position three-way electromagnetic valve is electrified, an inlet of the three-position three-way electromagnetic valve is cut off from a first outlet, and meanwhile the inlet of the three-position three-way electromagnetic valve is communicated with a second outlet.
In the method, the additive is output through the second outlet in an equal proportion, the output quantity of the additive and the output quantity of the fuel are output in an equal proportion (matched with an adding pump driven by a stepping motor or a servo motor), the output quantity of the adding pump is controlled by monitoring the output flow of the fuel gauge and combining an adding proportion parameter when the fuel is filled, and the method is suitable for the fuel containing the additive in a half tank in the fuel tank, but the fuel with the additive is not required to be filled when the fuel is not determined to be filled, or the method is suitable for the fuel tank of a vehicle to see the bottom, and a vehicle owner knows or does not know the fuel quantity when the fuel is filled at this time.
The invention is further provided that an additive one-way valve and an additive pressure relief valve are arranged on the additive pipe between the additive pump and the flowmeter along the flowing direction of the additive; and an additive pressure sensor is arranged on the flow meter towards the adding pipe in the direction of the three-position three-way electromagnetic valve, and the pressure relief pressure of the additive pressure relief valve is greater than that of the fuel pressure relief valve.
In the structure, the pressure relief pressure of the additive pressure relief valve is greater than that of the fuel pressure relief valve, so that the additive can be ensured to be capable of displacing redundant fuel from the fuel pressure relief valve through pressure when being injected into the pilot mixer.
The invention has the advantages of
1. Adding pure fuel oil: the fuel tank is suitable for being used by a user in a state that additives are not needed to be added, and the capacity and the residual oil quantity of the fuel tank are not needed to be concerned;
2. quantitative addition: the fuel tank bottom-seeing device is suitable for being used when a vehicle fuel tank is seen from the bottom, and an owner knows how much fuel is needed when the vehicle is filled up (the additive amount is fixed, and the additive amount when the vehicle is filled up is roughly determined); or when the fuel oil with the additive not added in the remaining half tank in the fuel tank is available, the vehicle owner needs to use the fuel oil in the state of adding the additive in the whole tank when knowing the total capacity of the fuel tank (the additive addition amount is fixed, and the fuel oil addition amount is determined according to the remaining space of the fuel tank).
3. Adding in equal proportion: the output quantity of the additive and the output quantity of the fuel oil are output in equal proportion, and the fuel oil additive is suitable for the fuel oil which contains a half tank of the fuel oil added with the additive in the fuel tank and is used when the fuel oil with the additive is not filled to certain extent (such as long-distance oil supplementing travel); or the automobile fuel tank filling device is suitable for a vehicle fuel tank with a bottom, and an automobile owner can use the automobile fuel tank in a state of knowing or not knowing the fuel quantity when the automobile fuel tank is filled with fuel at this time (for example, the automobile fuel tank is filled with fuel and the fuel tank is filled with fuel only when the automobile fuel tank is filled with fuel at the bottom and is not filled with fuel), and the capacity, the residual fuel quantity and the current filling fuel quantity of the fuel tank do not need to be concerned.
4. Avoid adding, adding more and adding less with mixing: the additive in the pilot mixer is preferentially discharged, the additive is ensured not to exist in the pilot mixer after refueling is finished, the additive proportion of a subsequent vehicle owner during refueling is ensured, and the additive is also ensured not to be added when the vehicle owner who subsequently adds pure fuel oil refuels; the second outlet is connected to the oil gun to realize gun mouth mixing, the output quantity of the additive can be immediately adjusted when the next vehicle is mainly set with different proportion quantities, and the problems that the subsequent addition proportion is inconsistent and the like caused by the additive remaining and mixed in the pipe are avoided.
5. The operability is strong: the fuel oil tank is convenient for users to match different addition amounts according to different requirements, PEA is used as an additive, carbon deposition is effectively reduced, removed and inhibited, the vehicle quality is improved, and the harm caused by poor fuel oil is effectively avoided.
Drawings
Fig. 1 is a schematic perspective view of the entire fuel dispenser of the present invention.
Fig. 2 is a schematic structural diagram of a pure fuel filling state of the invention.
FIG. 3 is a schematic diagram of the state structure of PEA logging preamble mixer of the present invention.
FIG. 4 is a schematic diagram of a PEA self-pilot output state structure according to the present invention.
FIG. 5 is a schematic structural view of the PEA/fuel equal-proportion output filling state of the present invention.
FIG. 6 is a schematic diagram of a pilot mixer according to the present invention.
The reference numbers in the figures mean: 10-oil pipe; 11-an oil pump; 12-a fuel check valve; 13-a lead mixer; 131-a temporary storage cavity; 132-a spoiler shaft; 133-spoiler blades; 14-oil gauge; 15-fuel pressure relief valve; 16-oil pressure sensor; 17-a pressure maintaining one-way valve; 20-an addition pipe; 21-a flow meter; 22-three-position three-way electromagnetic valve; 23-an addition pump; 24-additive one-way valves; 25-additive pressure relief valves; 26-additive pressure sensor; 30-an oil return pipe; 31-return check valve; 32-difference oil level meter; 40-oil gas recovery pipe; 41-oil gas recovery pump; 42-oil gas check valve; a-an oil gun; b-an oil tank; c-additive storage tank.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1
Referring to fig. 1 to 6, a multi-mode fuel filling system as shown in fig. 1 to 6 includes an oil pipe 10, wherein the oil pipe 10 is provided with an oil pump 11, a fuel check valve 12, a pilot mixer 13 and a fuel gauge 14 in sequence along a fuel flow direction; the system further comprises an adding system, wherein the adding system comprises an adding pipe 20, the adding pipe 20 is provided with a flow meter 21 along the flowing direction of the additive and then is connected with an inlet of a three-position three-way electromagnetic valve 22, a first outlet of the three-position three-way electromagnetic valve 22 is connected with the front guide mixer 13, and a second outlet of the three-position three-way electromagnetic valve 22 is connected to the oil gun a; the oil pipe 10 between the pilot mixer 13 and the fuel gauge 14 is connected with the oil pipe 10 between the oil pump 11 and the fuel check valve 12 through an oil return pipe 30, the oil return pipe 30 is sequentially provided with an oil return check valve 31 and a difference fuel gauge 32 along the fuel oil return direction, and the oil pipe 10 between the fuel check valve 12 and the oil pump 11 or the oil return pipe 30 at the downstream of the difference fuel gauge 32 is provided with a fuel pressure release valve 15.
In the structure, the three-position three-way electromagnetic valve 22 can cut off the communication between the inlet and the first outlet and the second outlet in time when power is off accidentally, so that the situation that the additive is excessively added due to the fact that the additive is reset and pumped out after a secondary power-on occurs is avoided; when the additive is injected into the leading mixer 13 through the first outlet of the three-position three-way electromagnetic valve 22, the fuel in the leading mixer 13 can be replaced, and is discharged to the fuel pressure release valve 15 through the oil return pipe 30, and the volume of the fuel discharged through the oil return pipe 30 is equal to the volume of the additive injected into the leading mixer 13, so that the additive amount of the additive can be obtained by directly measuring the volume of the flowing fuel through the differential oil collection meter 32, and the later-period settlement of the additive cost is facilitated; a second outlet of the three-position three-way electromagnetic valve 22 is connected to the oil gun a to realize fuel oil addition and additive addition;
the additive injected into the pilot mixer 13 through the first outlet is suitable for being used by an owner in a state that the owner knows the fuel quantity when the refueling is full when the fuel tank of the vehicle is at the bottom; or the fuel tank contains half tank of fuel oil without additive, and the vehicle owner knows the capacity of the fuel tank when the fuel tank is full and needs to use the fuel tank in the state of adding the additive into the whole tank of fuel oil;
when the additive is output through the second outlet, the output quantity of the additive and the output quantity of the fuel oil are output in equal proportion, and the fuel oil additive is suitable for the fuel oil containing the half tank of the fuel oil added with the additive in the fuel tank, but the fuel oil with the additive is not required to be filled when the fuel oil is not filled.
In this embodiment, the pilot mixer 13 includes a cylindrical temporary storage chamber 131, the downstream of the fuel check valve 12 is connected to the rear end of the temporary storage chamber 131, and the front end of the temporary storage chamber 131 is communicated to the fuel gauge 14; the fuel oil flows from the rear end to the front end of the temporary storage cavity 131; the first outlet of the three-position three-way electromagnetic valve 22 is connected with the rear end of the temporary storage cavity 131.
In the structure, the temporary storage cavity 131 is used for temporarily storing the additive, so that the additive can be directly injected into the oil tank through fuel oil in the early stage of refueling.
In this embodiment, be equipped with in the chamber 131 of keeping in and set up rather than concentric, and can be for keeping in the pivoted vortex axle 132 of chamber 131, be equipped with vortex blade 133 on the vortex axle 132, vortex blade 133 end extends to and is close to chamber 131 inner wall department of keeping in and drives the rotation of vortex axle 132 under the promotion of additive or fuel.
In the above structure, when the thick additive enters into the oil return pipe to drive and displace the fuel oil, the flow velocity of the turbulent flow vane 133 is slow, so that turbulent flow can be reduced, and partial additive is prevented from being discharged from the oil return pipe 30 along with the fuel oil due to mixing of the entering additive and the fuel oil; when the additive is added and the oil is added and added, the thinner fuel oil directly scours the additive to be mixed and flows to the oil gun a through the fuel gauge 14, and can directly impact the turbulence blades 133 to drive the turbulence shaft 132 to rotate, so that larger turbulence is formed on the inner wall of the temporary storage cavity 131, the additive attached to the inner wall of the temporary storage cavity 131 is scoured in an auxiliary mode, and the mixing effect of the early-stage fuel oil mixed with the additive during output is improved.
In this embodiment, the front guiding mixer 13 is disposed vertically or obliquely, and the front end of the temporary storage cavity 131 is higher than the rear end of the temporary storage cavity 131 in the horizontal direction.
In the structure, the density of the additive is greater than that of fuel oil, and the additive has a bottom sinking effect, so that the additive is more favorably accumulated at the bottom of the front guide mixer 13 when entering the front guide mixer 13 in a vertical or inclined mode, and the additive is prevented from being entrained and discharged together when the fuel oil at the top of the front guide mixer 13 is discharged to the oil return pipe 30.
In this embodiment, the oil-gas recovery device further includes an oil-gas recovery pipe 40, and the oil-gas recovery pipe 40 is sequentially provided with an oil-gas recovery pump 41 and an oil-gas one-way valve 42 from the oil gun a to the oil tank b.
In the above structure, the oil gas recovery pipe 40 is used to recover oil gas discharged from the oil tank of the vehicle when refueling.
Example 2
Referring to fig. 1 to 6, a control method of a multi-mode fuel filling system shown in fig. 1 to 6 includes the multi-mode fuel filling system of embodiment 1, an oil pressure sensor 16 for detecting a pressure of an oil pipe 10 to control starting and stopping of the oil pump 11 is disposed on the oil pipe 10 between the oil pump 11 and a fuel check valve 12, the oil pressure sensor 16 is provided with a lower threshold and an upper threshold, the oil pump 11 is started when the pressure of the oil pipe 10 reaches the lower threshold, the oil pump 11 is closed when the pressure of the oil pipe 10 reaches the upper threshold, and a pressure discharge pressure of a fuel pressure relief valve 15 is higher than the upper threshold of the oil pressure sensor 16; an adding pump 23 driven by a stepping motor or a servo motor is arranged at the downstream of the flowmeter 21;
in the structure, the adding pump 23 is driven by a stepping motor or a servo motor, so that the output proportion of the additive can be effectively controlled, and the micro-amount accurate adding is realized.
When pure fuel oil is filled, the three-position three-way electromagnetic valve 22 is powered off, the inlet, the first outlet and the second outlet of the three-position three-way electromagnetic valve are all in a closed state, an oil gun a at the downstream of the fuel gauge 14 is started, the oil pump 11 is started to pump oil when the oil pressure sensor 16 detects that the pressure of the oil pipe 10 is reduced to a lower limit threshold value, the fuel oil is supplied to the oil gun a for filling the fuel oil after passing through the fuel oil one-way valve 12, the pilot mixer 13 and the fuel gauge 14, when the oil gun a is closed, the oil pump 11 continues to operate, the oil pump 11 is closed when the oil pressure sensor 16 detects that the pressure of the oil pipe 10 is increased to the upper limit threshold value, and the fuel gauge 14 counts the filling amount and converts the filling amount into fuel amount;
in the method, the pure fuel oil is suitable for being used in a state that a user does not need to add additives.
When quantitatively filling, an electromagnet on one side of a three-position three-way electromagnetic valve 22 is electrified, an inlet of the three-position three-way electromagnetic valve is communicated with a first outlet, and meanwhile, the inlet is closed off from a second outlet, according to the number of fuel rises with the percentage of the addition or the required addition of the additive, the additive in an adding pipe 20 is counted by a flow meter 21 and then is supplied into the inner cavity of a leading mixer 13 from the rear end of the leading mixer 13, the fuel in the inner cavity at the front end of the leading mixer 13 is discharged into a return pipe 30, the discharged fuel is discharged through a return one-way valve 31 and a difference fuel meter 32 in sequence and then is discharged through a fuel pressure relief valve 15, then the three-position three-way electromagnetic valve 22 is powered off, the inlet, the first outlet and the second outlet of the three-position three-way electromagnetic valve are all in a closed state, an oil gun a at the downstream of the fuel meter 14 is opened, when an oil pressure sensor 16 detects that the pressure of an oil pipe 10 is reduced to a lower limit threshold value, an oil pump 11 is started to pump oil to carry out the oil to fill, the additive in the inner cavity at the first, then, flushing the inner cavity of the pilot mixer 13 by using fuel oil during filling, when an oil gun a is closed, continuing to operate the oil pump 11, closing the oil pump 11 when the oil pressure sensor 16 detects that the pressure of the oil pipe 10 is increased to an upper threshold value, converting the oil return amount of the differential oil collection meter 32 into the additive addition amount, and converting the oil return amount into the fuel oil amount after deducting the metering amount of the differential oil collection meter 32 by the oil meter 14;
in the method, the additive which is injected into the pilot mixer 13 through the first outlet is quantitatively injected, and the method is suitable for being used when an oil tank of a vehicle is in a bottom state and an owner knows the fuel quantity when the oil tank is fully filled; or the fuel tank contains half fuel oil without additive, and the vehicle owner needs to use the fuel oil in the state of adding the additive into the whole fuel oil when knowing the capacity of the full fuel tank.
When the equal proportion is filled, the electromagnet on the other side of the three-position three-way electromagnetic valve 22 is electrified, the inlet of the three-position three-way electromagnetic valve is cut off from the first outlet, meanwhile, the inlet is communicated with the second outlet, after the proportion of the additive is set, the oil gun a on the downstream of the oil meter 14 is opened, the oil pressure sensor 16 starts the oil pump 11 to pump oil when detecting that the pressure of the oil pipe 10 is reduced to the lower limit threshold value to fill the oil, the adding pump 23 starts to operate when the oil pump 11 is started, when the oil gun a is closed, the oil pump 11 continues to operate, the oil pump 11 and the adding pump 23 are synchronously closed and the power supply of the three-position three-way electromagnetic valve 22 is cut off when the pressure of the oil pipe 10 is detected to be increased to the upper limit threshold value, the flow meter 21 counts the additive adding amount and converts the additive amount into the fuel amount.
In the method, the additive is output through the second outlet in equal proportion, the output quantity of the additive and the output quantity of the fuel oil are both output in equal proportion (matched with the adding pump 23 driven by a stepping motor or a servo motor), the output quantity of the adding pump 23 is controlled by monitoring the output flow quantity of the fuel oil meter 14 during refueling, and the method is suitable for the fuel oil containing the additive in a half tank in the fuel oil tank but used when the fuel oil with the additive is not required to be filled in an uncertain manner, or suitable for the fuel oil tank of a vehicle, and a vehicle owner knows or does not know the fuel oil quantity during the refueling at the bottom.
In this embodiment, an additive check valve 24 and an additive pressure release valve 25 are arranged on the addition pipe 20 between the addition pump 23 and the flow meter 21 along the additive flow direction; an additive pressure sensor 26 is arranged on the adding pipe 20 of the flowmeter 21 towards the three-position three-way electromagnetic valve 22, and the pressure relief pressure of the additive pressure relief valve 25 is greater than that of the fuel pressure relief valve 15.
In the above structure, the pressure relief pressure of the additive relief valve 25 is greater than the pressure relief pressure of the fuel relief valve 15, so that it can be ensured that the excessive fuel can be discharged from the fuel relief valve 15 by pressure when the additive is injected into the pilot mixer 13.
In this embodiment, a pressure maintaining one-way valve 17 is disposed between the oil pump 11 and the oil pressure sensor 16, and the pressure maintaining one-way valve 17 can prevent the oil pump 11 from mixing with air, so as to ensure that the oil pipe 10 is filled with fuel oil; the oil return one-way valve 31 can avoid counting errors of the differential oil collection meter 32 caused by backflow of the fuel oil displaced from the front guide mixer; the fuel check valve 12 prevents the additive from flowing downstream of the pilot mixer 13 from the rear end of the pilot mixer 13 during injection, and ensures that the displaced fuel can only be discharged from the return pipe 30.
In the above structure, the additive pump 23 is connected to the additive tank c.
The invention has the advantages of
1. Adding pure fuel oil: the fuel tank is suitable for being used by a user in a state that additives are not needed to be added, and the capacity and the residual oil quantity of the fuel tank are not needed to be concerned;
2. quantitative addition: the fuel tank bottom-seeing device is suitable for being used when a vehicle fuel tank is seen from the bottom, and an owner knows how much fuel is needed when the vehicle is filled up (the additive amount is fixed, and the additive amount when the vehicle is filled up is roughly determined); or when the fuel oil of which the additive is not added in the remaining half tank in the fuel tank is used under the condition that the additive needs to be added in the whole fuel tank when the owner knows the total capacity of the fuel tank (the additive addition amount is fixed, and the fuel oil addition amount is determined according to the remaining space of the fuel tank).
3. Adding in equal proportion: the output quantity of the additive and the output quantity of the fuel oil are output in equal proportion, and the fuel oil additive is suitable for the fuel oil which contains a half tank of the fuel oil added with the additive in the fuel tank and is used when the fuel oil with the additive is not filled to certain extent (such as long-distance oil supplementing travel); or the automobile fuel tank filling device is suitable for a vehicle fuel tank with a bottom, and an automobile owner can use the automobile fuel tank in a state of knowing or not knowing the fuel quantity when the automobile fuel tank is filled with fuel at this time (for example, the automobile fuel tank is filled with fuel and the fuel tank is filled with fuel only when the automobile fuel tank is filled with fuel at the bottom and is not filled with fuel), and the capacity, the residual fuel quantity and the current filling fuel quantity of the fuel tank do not need to be concerned.
4. Avoid adding, add more and add less with mixing: the additive in the pilot mixer 13 is preferentially discharged, the additive is ensured not to exist in the pilot mixer 13 after the refueling is finished, the additive proportion of a subsequent vehicle owner during refueling is ensured, and the additive is also ensured not to be added when the vehicle owner who subsequently adds pure fuel oil refuels; the second outlet is connected to the oil gun a to realize gun mouth mixing, the output quantity of the additive can be immediately adjusted when the next vehicle is mainly set with different mixing quantities, and the problems that the subsequent addition proportion is inconsistent and the like caused by the additive remaining and mixed in the pipe are avoided.
5. The operability is strong: the fuel oil additive is convenient for users to match different additive amounts according to different requirements, PEA is used as the additive, carbon deposition is effectively reduced, removed and inhibited, the vehicle quality is improved, and the harm caused by poor fuel oil is effectively avoided.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications without departing from the technical principle of the present invention, and those improvements and modifications assumed in the above are also considered to be within the scope of the present invention.
Claims (7)
1. A multi-mode fuel filling system comprises an oil pipe, and is characterized in that: the oil pipe is sequentially provided with an oil pump, a fuel one-way valve, a pilot mixer and an oil gauge along the flowing direction of fuel oil; the system comprises an additive system and a three-position three-way electromagnetic valve, wherein the additive system comprises an additive pipe, the additive pipe is connected with an inlet of the three-position three-way electromagnetic valve after being provided with a flow meter along the flowing direction of an additive, a first outlet of the three-position three-way electromagnetic valve is connected with a front guide mixer, and a second outlet of the three-position three-way electromagnetic valve is connected to an oil gun; an oil pipe between the front guide mixer and the oil meter is connected with an oil pipe between the oil pump and the fuel oil one-way valve through an oil return pipe, the oil return pipe is sequentially provided with an oil return one-way valve and a difference oil collection meter along the fuel oil return direction, and the oil pipe between the fuel oil one-way valve and the oil pump or the oil return pipe at the downstream of the difference oil collection meter is provided with a fuel oil pressure release valve.
2. A multi-mode fuel fill system as set forth in claim 1, wherein: the pilot mixer comprises a cylindrical temporary storage cavity, the downstream of the fuel check valve is connected with the rear end of the temporary storage cavity, and the front end of the temporary storage cavity is communicated with the fuel gauge; the fuel oil flows from the rear end to the front end of the temporary storage cavity; and a first outlet of the three-position three-way electromagnetic valve is connected with the rear end of the temporary storage cavity.
3. A multi-mode fuel fill system as set forth in claim 2, wherein: the temporary storage cavity is internally provided with a turbulence shaft which is concentric with the temporary storage cavity and can rotate relative to the temporary storage cavity, the turbulence shaft is provided with turbulence blades, and the tail ends of the turbulence blades extend to the positions close to the inner wall of the temporary storage cavity and drive the turbulence shaft to rotate under the pushing of additives or fuel oil.
4. A multi-mode fuel fill system as set forth in claim 3, wherein: the front guide mixer is vertically or obliquely arranged, and the front end of the temporary storage cavity is higher than the rear end of the temporary storage cavity in the horizontal direction.
5. A multi-mode fuel fill system as set forth in claim 1, wherein: still include the oil gas recovery pipe, the oil gas recovery pipe is equipped with oil gas recovery pump and oil gas check valve from the oil gun in proper order toward the oil tank direction.
6. A control method of a multi-mode fuel fill system according to claim 1 or 2 or 3 or 4 or 5, wherein: an oil pipe between the oil pump and the fuel check valve is provided with an oil pressure sensor which controls the start and stop of the oil pump by detecting the pressure of the oil pipe, the oil pressure sensor is provided with a lower threshold and an upper threshold, the oil pump is started when the pressure of the oil pipe reaches the lower threshold, the oil pump is closed when the pressure of the oil pipe reaches the upper threshold, and the pressure discharge pressure of the fuel pressure release valve is higher than the upper threshold of the oil pressure sensor; an adding pump driven by a stepping motor or a servo motor is arranged at the downstream of the flowmeter;
when pure fuel oil is filled, the three-position three-way electromagnetic valve is powered off, the inlet, the first outlet and the second outlet of the three-position three-way electromagnetic valve are all in a closed state, an oil gun at the downstream of the fuel gauge is started, an oil pump is started to pump oil when an oil pressure sensor detects that the pressure of an oil pipe is reduced to a lower limit threshold value, the fuel oil is supplied to the oil gun for filling the fuel oil after passing through the fuel oil one-way valve, the front guide mixer and the fuel gauge, the oil pump continues to operate when the oil gun is closed, the oil pump is closed when the oil pressure sensor detects that the pressure of the oil pipe is increased to an upper limit threshold value, and the fuel gauge counts the amount of the filled fuel oil and converts the amount of the filled fuel oil into the amount of the fuel oil;
when quantitatively filling, an electromagnet on one side of the three-position three-way electromagnetic valve is electrified, an inlet of the three-position three-way electromagnetic valve is communicated with a first outlet, and meanwhile, the inlet is closed off from a second outlet, according to the rise number of fuel with the set addition percentage or the required addition of the additive, the additive in an addition pipe is fed into an inner cavity of a leading mixer from the rear end of the leading mixer after the flow is counted by a flow meter, the fuel in the inner cavity of the front end of the leading mixer is discharged into a return oil pipe, the discharged fuel sequentially passes through a return oil one-way valve and a difference fuel collection meter and then is discharged through a fuel relief valve, then the three-position three-way electromagnetic valve is powered off, the inlet, the first outlet and the second outlet of the three-position three-way electromagnetic valve are all in a closed state, an oil gun at the downstream of the oil meter is opened, an oil pump is started to pump the oil when an oil pressure sensor detects that the pressure of an oil pipe is reduced to a lower threshold value, the additive in the inner cavity of the rear end of the leading mixer is discharged to the oil gun, then, flushing the inner cavity of the pilot mixer by using fuel oil during filling, when an oil gun is closed, continuing to operate an oil pump, when an oil pressure sensor detects that the pressure of an oil pipe is increased to an upper threshold value, closing the oil pump, converting the oil return amount of a difference oil collection meter into the additive addition amount, and converting the oil return amount into the fuel amount after deducting the metering amount of the difference oil collection meter;
when equal proportion is filled, an electromagnet on the other side of the three-position three-way electromagnetic valve is electrified, an inlet of the three-position three-way electromagnetic valve is cut off from a first outlet, and meanwhile the inlet of the three-position three-way electromagnetic valve is communicated with a second outlet.
7. A control method for a multi-mode fuel fill system as set forth in claim 6, wherein: an additive one-way valve and an additive pressure relief valve are arranged on an adding pipe between the adding pump and the flow meter along the flowing direction of the additive; and an additive pressure sensor is arranged on the flow meter towards the adding pipe in the direction of the three-position three-way electromagnetic valve, and the pressure relief pressure of the additive pressure relief valve is greater than that of the fuel pressure relief valve.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58204920A (en) * | 1982-05-24 | 1983-11-29 | Mazda Motor Corp | Device for introducing engine-cooling water |
| CN1076515A (en) * | 1992-02-06 | 1993-09-22 | 鲁布里佐尔慝司 | Additive injection system and injection method thereof |
| WO1998023530A1 (en) * | 1996-11-28 | 1998-06-04 | Schlumberger Industries | Device for injecting liquid additive into a fuel |
| JPH10204819A (en) * | 1997-01-28 | 1998-08-04 | Kawasaki Heavy Ind Ltd | Spreading equipment for compaction machines |
| US20110126514A1 (en) * | 2009-11-20 | 2011-06-02 | Brammell Jack R | Systems and Methods for On-Site Mixing and Dispensing of a Reducing Agent Solution for Use with a Diesel Catalytic Converter |
| CN104512857A (en) * | 2013-09-29 | 2015-04-15 | 德莱赛稳加油设备(上海)有限公司 | Additive injection device and method for fuel filling machine |
| CN106837489A (en) * | 2017-03-10 | 2017-06-13 | 江苏大学 | A kind of SCR supplies spraying system crystallization prevention device and method |
| CN108343534A (en) * | 2018-04-09 | 2018-07-31 | 西华大学 | A kind of activity control compression-ignition engine variable fuel feed system |
| CN213202355U (en) * | 2020-08-12 | 2021-05-14 | 江苏云瀚股份有限公司 | Production of engine coolant liquid is with throwing material treatment facility |
-
2022
- 2022-06-01 CN CN202210618821.6A patent/CN114933274B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58204920A (en) * | 1982-05-24 | 1983-11-29 | Mazda Motor Corp | Device for introducing engine-cooling water |
| CN1076515A (en) * | 1992-02-06 | 1993-09-22 | 鲁布里佐尔慝司 | Additive injection system and injection method thereof |
| WO1998023530A1 (en) * | 1996-11-28 | 1998-06-04 | Schlumberger Industries | Device for injecting liquid additive into a fuel |
| JPH10204819A (en) * | 1997-01-28 | 1998-08-04 | Kawasaki Heavy Ind Ltd | Spreading equipment for compaction machines |
| US20110126514A1 (en) * | 2009-11-20 | 2011-06-02 | Brammell Jack R | Systems and Methods for On-Site Mixing and Dispensing of a Reducing Agent Solution for Use with a Diesel Catalytic Converter |
| CN104512857A (en) * | 2013-09-29 | 2015-04-15 | 德莱赛稳加油设备(上海)有限公司 | Additive injection device and method for fuel filling machine |
| CN106837489A (en) * | 2017-03-10 | 2017-06-13 | 江苏大学 | A kind of SCR supplies spraying system crystallization prevention device and method |
| CN108343534A (en) * | 2018-04-09 | 2018-07-31 | 西华大学 | A kind of activity control compression-ignition engine variable fuel feed system |
| CN213202355U (en) * | 2020-08-12 | 2021-05-14 | 江苏云瀚股份有限公司 | Production of engine coolant liquid is with throwing material treatment facility |
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