CN118148799A - Fuel preheating structure for hybrid electric vehicle - Google Patents
Fuel preheating structure for hybrid electric vehicle Download PDFInfo
- Publication number
- CN118148799A CN118148799A CN202410448734.XA CN202410448734A CN118148799A CN 118148799 A CN118148799 A CN 118148799A CN 202410448734 A CN202410448734 A CN 202410448734A CN 118148799 A CN118148799 A CN 118148799A
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- CN
- China
- Prior art keywords
- oil
- fuel
- tank
- engine
- auxiliary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 59
- 238000005485 electric heating Methods 0.000 claims abstract description 47
- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 239000002828 fuel tank Substances 0.000 claims abstract description 34
- 239000000110 cooling liquid Substances 0.000 claims abstract description 9
- 239000003921 oil Substances 0.000 claims description 128
- 238000000605 extraction Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000000295 fuel oil Substances 0.000 claims description 11
- 238000007689 inspection Methods 0.000 claims description 4
- 239000002283 diesel fuel Substances 0.000 abstract description 22
- 238000000034 method Methods 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/02—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating
- F02M31/12—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for heating electrically
- F02M31/125—Fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
- F02M37/0082—Devices inside the fuel tank other than fuel pumps or filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
- F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention relates to the technical field of hybrid electric vehicles, in particular to a fuel preheating structure for a hybrid electric vehicle, which comprises a double-cavity fuel tank and an engine, wherein the double-cavity fuel tank comprises two fuel tanks, namely a main fuel tank and an auxiliary fuel tank, an electric heating fuel taking component is arranged in the auxiliary fuel tank and is used for heating fuel in the auxiliary fuel tank and delivering the fuel in the auxiliary fuel tank to the engine, a liquid heating fuel taking component is arranged in the main fuel tank, when engine cooling liquid passes through the liquid heating fuel taking component, the liquid heating fuel taking component transfers heat and simultaneously heats the fuel in the auxiliary fuel tank, and when the fuel in the auxiliary fuel tank reaches a specified temperature, the liquid heating fuel taking component delivers the fuel in the main fuel tank to the engine; the invention can continuously use low-grade diesel oil in the running process of the engine, reduces the power consumption of continuous electric heating, fully utilizes the preheating of the engine and saves energy.
Description
Technical Field
The invention relates to the technical field of hybrid electric vehicles, in particular to a fuel preheating structure for a hybrid electric vehicle.
Background
The hybrid electric vehicle is provided with two energy sources, wherein one energy source is from an oil tank, the other energy source is from a power battery, and under the same working condition, the oil consumption of the hybrid electric vehicle is increased, and the electricity consumption is reduced; conversely, if the electricity consumption increases, the oil consumption decreases accordingly.
For a hybrid electric vehicle using a diesel engine, there are two problems in using the diesel engine in a low-temperature environment, firstly, the diesel No. 0 can generate wax precipitation and other conditions at low temperature, which causes difficulty in starting the vehicle, and secondly, the diesel nos. -10 and-35 can solve the wax precipitation problem, but can greatly increase the fuel cost.
At present, a commercial vehicle is operated in a low-temperature environment by adopting a double-cavity oil tank, namely a secondary oil tank uses-35 # diesel oil, a main oil tank uses 0 # diesel oil, the main oil tank thaws the diesel oil through the temperature of engine cooling liquid, the secondary oil tank is used for high-grade diesel oil ignition when the vehicle is started, and the secondary oil tank is replaced to the main oil tank to use low # diesel oil to continue running when the temperature of the engine water rises to a certain temperature, so that the fuel cost is saved.
However, in the hybrid vehicle, because the engine is not continuously operated, the water temperature cannot meet the heating requirement of the main fuel tank, so that the high-grade fuel of the auxiliary fuel tank is continuously used, and the fuel cost is increased.
Disclosure of Invention
The invention aims to provide a fuel preheating structure for a hybrid electric vehicle, which aims to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The utility model provides a fuel preheating structure for hybrid vehicle, includes dual-chamber oil tank and engine, dual-chamber oil tank includes two oil tanks, is main oil tank and bellytank respectively, the inside electric heating oil extraction subassembly that is equipped with of bellytank is used for heating the inside fuel of bellytank to carry the inside fuel of bellytank for the engine, the inside liquid heating oil extraction subassembly that is equipped with of main oil tank when engine coolant liquid is through liquid heating oil extraction subassembly, liquid heating oil extraction subassembly transfer heat heats the inside fuel of bellytank simultaneously, and when the inside fuel of bellytank reaches the appointed temperature, liquid heating oil extraction subassembly carries the inside fuel of main oil tank for the engine.
Preferably: the liquid heating oil extraction assembly comprises a second oil pipe and a water pipe, wherein the second oil pipe is communicated with the main oil tank and the engine, the water pipe passes through the inside of the main oil tank and is communicated with the engine, and a radiator is further arranged outside the water pipe.
Preferably: the liquid heating oil extraction assembly is electrically connected with a liquid heating switch.
Preferably: the electric heating oil taking assembly comprises an electric heating device and a first oil pipe, wherein the first oil pipe is communicated with the engine and the auxiliary oil tank, and the electric heating device is used for heating fuel oil in the auxiliary oil tank.
Preferably: the electric heating device is in threaded sealing connection with the oil tank and consists of a PTC resistor, a radiator and a power battery.
Preferably: the electric heating oil extraction assembly is electrically connected with an electric heating switch.
Preferably: the automatic switching device also comprises a change-over switch, wherein the change-over switch is used for controlling the change-over of the main oil tank and the auxiliary oil tank.
Preferably: the device also comprises a main switch, wherein the control switch is used for controlling the opening of the electric heating oil extraction assembly and the liquid heating oil extraction assembly.
Preferably: the system also comprises an inspection system for detecting the oil quantity in the main oil tank and the auxiliary oil tank.
Preferably: the display system is used for displaying the working states of the electric heating oil taking component and the liquid heating oil taking component.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, through the design of mixing and preheating of the double-cavity oil tank, the electric heating oil extraction assembly and the liquid heating oil extraction assembly, the problem that the water temperature is insufficient to melt low-grade diesel oil and wax is formed when the engine of the hybrid electric vehicle does not run continuously is solved, so that the engine can use low-grade diesel oil continuously in the running process, the electric consumption of continuous electric heating is reduced, the engine is fully utilized for preheating, the energy is saved, and in the event of electric heating failure, high-grade diesel oil can be filled in the auxiliary oil tank, and the failure redundancy of the vehicle is improved.
Drawings
Fig. 1 is a schematic diagram of a connection structure of a dual-chamber fuel tank in an embodiment of the invention.
In the figure: 1-an engine; 2-a double-cavity oil tank; 21-a secondary oil tank; 22-a main oil tank; 3-an electric heating oil extraction assembly; 4-heating the liquid to obtain the oil component; 5-a first oil pipe; 6-a second oil pipe; 7-a water pipe; 8-a main and auxiliary box electromagnetic valve; 9-hydrothermal electromagnetic valve.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Specific implementations of the invention are described in detail below in connection with specific embodiments.
In one embodiment, referring to fig. 1, a fuel preheating structure for a hybrid electric vehicle includes a dual-cavity fuel tank 2 and an engine 1, the dual-cavity fuel tank 2 includes two fuel tanks, namely a main fuel tank 22 and an auxiliary fuel tank 21, an electric heating fuel taking component 3 is disposed in the auxiliary fuel tank 21, the electric heating fuel taking component 3 is used for heating fuel in the auxiliary fuel tank 21 and delivering the fuel in the auxiliary fuel tank 21 to the engine 1, a liquid heating fuel taking component 4 is disposed in the main fuel tank 22, when cooling liquid of the engine 1 passes through the liquid heating fuel taking component 4, the liquid heating fuel taking component 4 transfers heat and simultaneously heats fuel in the auxiliary fuel tank 21, and when the fuel in the auxiliary fuel tank 21 reaches a specified temperature, the liquid heating fuel taking component 4 delivers the fuel in the main fuel tank 22 to the engine 1;
When the system is used, diesel oil in the main oil tank 22 is low-grade diesel oil, such as No. 0 diesel oil, diesel oil in the auxiliary oil tank 21 is high-grade diesel oil, such as No. -10 diesel oil and No. 35 diesel oil, firstly, the high-grade diesel oil in the auxiliary oil tank 21 is heated by the electric heating oil taking component 3, and meanwhile, the high-grade diesel oil is conveyed to the engine 1, after the engine 1 works, the liquid heating oil taking component 4 automatically works, the system is switched to the main oil tank 22 for supplying oil after running for 15-20 minutes (properly shortened or prolonged according to the ambient temperature) and the water temperature exceeds 70 ℃, meanwhile, the electric heating oil taking component 3 stops running, if the electric drive is used for a long time in the running process or the water temperature of the engine 1 cannot be maintained above 70 ℃, the auxiliary oil tank 21 is continuously used by the system, the problem that the water temperature is insufficient to turn off the low-grade diesel oil in the non-continuous running process of the hybrid vehicle engine 1 is solved, the low-grade diesel oil can be continuously used in the running process, the electric heating oil is preheated by the mixed and preheated by the double-cavity oil tank 2, the electric heating oil taking component 3 and the liquid heating oil taking component 4, the electric heating oil consumption is reduced, the electric heating power consumption of the electric heating oil is fully used, and the power consumption of the electric heating fault of the auxiliary oil tank is fully improved when the electric fault is fully added when the engine is high, and the fault is solved;
The electric heating oil extraction assembly 3 comprises an electric heating device and a first oil pipe 5, the first oil pipe 5 is communicated with the engine 1 and the auxiliary oil tank 21, the electric heating device is used for heating fuel oil in the auxiliary oil tank 21, high-grade fuel oil is conveyed to the interior of the engine 1 through the first oil pipe 5, the electric heating device is in threaded sealing connection with the oil tank and consists of a PTC resistor, a radiator and a power battery, when current passes through the PTC resistor, the PTC resistor heats, the surrounding fuel oil is heated through heat transferred by the radiator, the electric heating oil extraction assembly 3 is electrically connected with an electric heating switch, the electric heating switch controls the electric heating of the auxiliary oil tank 21 and the opening and closing of the first oil pipe 5, and when the temperature is lower than 4 ℃, the electric heating switch is opened and when the temperature is higher than 25 ℃;
The liquid heating oil taking component 4 comprises a second oil pipe 6 and a water pipe 7, the second oil pipe 6 is communicated with a main oil tank 22 and the engine 1, the water pipe 7 passes through the inside of the main oil tank 22 and is communicated with the engine 1, a radiator is further arranged outside the water pipe 7, low-grade fuel oil is conveyed to the inside of the engine 1 through the second oil pipe 6, when cooling liquid flows through the engine 1, the cooling liquid takes away part of heat generated in the working process of the engine 1, the temperature of the cooling liquid rises, when the cooling liquid passes through the water pipe 7, the radiator dissipates heat of the cooling liquid in the water pipe 7, the radiator transfers heat at the same time, and then low-grade diesel oil in the main oil tank 22 is heated, wherein the first oil pipe 5 and the second oil pipe 6 are provided with a main and auxiliary oil tank electromagnetic valve 8, the electric heating oil taking component 3 and the liquid heating oil taking component 4 achieve different diesel oil conveying purposes through controlling the opening and closing of the main and auxiliary oil tank electromagnetic valve 8, the liquid heating oil taking component 4 is provided with a liquid heating electromagnetic valve 9 through controlling the opening and closing of the liquid heating electromagnetic valve 9, and the inside of the main oil tank 22 is heated by controlling the liquid heating oil taking component 4.
In one embodiment, referring to fig. 1, a fuel preheating structure for a hybrid electric vehicle further includes a switch, a master switch, an inspection system and a display system, where the switch is used to control switching of the main fuel tank 22 and the auxiliary fuel tank 21, the master switch is used to control opening of the electric heating fuel taking component 3 and the liquid heating fuel taking component 4, the driver can open the master switch according to an ambient temperature (for example, when the ambient temperature is lower than 4 ℃), the inspection system is used to detect fuel in the main fuel tank 22 and the auxiliary fuel tank 21, the fuel is excessively low to prompt the driver to supplement fuel, and the display system is used to display working states of the electric heating fuel taking component 3 and the liquid heating fuel taking component 4, such as normal, failure, preheating completion, running and closing of the electric heating fuel taking component 3 and the liquid heating fuel taking component 4.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. A fuel preheating structure for a hybrid electric vehicle comprises a double-cavity oil tank and an engine; the double-cavity oil tank is characterized by comprising two oil tanks, namely a main oil tank and an auxiliary oil tank, wherein an electric heating oil taking component is arranged in the auxiliary oil tank and used for heating fuel oil in the auxiliary oil tank and delivering the fuel oil in the auxiliary oil tank to an engine, a liquid heating oil taking component is arranged in the main oil tank, when engine cooling liquid passes through the liquid heating oil taking component, the liquid heating oil taking component transfers heat to heat the fuel oil in the auxiliary oil tank and simultaneously heats the fuel oil in the auxiliary oil tank, and when the fuel oil in the auxiliary oil tank reaches a specified temperature, the liquid heating oil taking component delivers the fuel oil in the main oil tank to the engine.
2. The fuel preheating structure for a hybrid vehicle according to claim 1, wherein the liquid heating oil extraction assembly includes a second oil pipe and a water pipe, the second oil pipe is communicated with the main oil tank and the engine, the water pipe passes through from the inside of the main oil tank and is communicated with the engine, and a radiator is further installed at the outside of the water pipe.
3. The fuel preheating structure for a hybrid vehicle according to claim 2, wherein the liquid heating oil extracting assembly is electrically connected to a liquid heating switch.
4. The fuel preheating structure for a hybrid vehicle according to claim 1, wherein the electric heating oil extracting assembly includes an electric heating device and a first oil pipe, the first oil pipe being in communication with the engine and the auxiliary fuel tank, wherein the electric heating device is configured to heat fuel inside the auxiliary fuel tank.
5. The fuel preheating structure for a hybrid vehicle according to claim 4, wherein the electric heating device is screw-coupled with the fuel tank, and is composed of a PTC resistor, a radiator, and a power battery.
6. The fuel preheating structure for a hybrid vehicle according to claim 4 or 5, wherein the electric heating oil extracting assembly is electrically connected to an electric heating switch.
7. The fuel preheating structure for a hybrid vehicle according to claim 1, further comprising a change-over switch for controlling the switching of the main tank and the sub-tank.
8. The fuel preheating structure for a hybrid vehicle according to claim 1, further comprising a main switch for controlling the opening of the electric heating oil extraction assembly and the liquid heating oil extraction assembly.
9. The fuel warm-up structure for a hybrid vehicle according to claim 1, further comprising an inspection system for detecting the amount of fuel in the main tank and the sub-tank.
10. The fuel preheating structure for a hybrid vehicle according to claim 1, further comprising a display system for displaying the operating states of the electric heating oil extraction assembly and the liquid heating oil extraction assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410448734.XA CN118148799A (en) | 2024-04-15 | 2024-04-15 | Fuel preheating structure for hybrid electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410448734.XA CN118148799A (en) | 2024-04-15 | 2024-04-15 | Fuel preheating structure for hybrid electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118148799A true CN118148799A (en) | 2024-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410448734.XA Pending CN118148799A (en) | 2024-04-15 | 2024-04-15 | Fuel preheating structure for hybrid electric vehicle |
Country Status (1)
| Country | Link |
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| CN (1) | CN118148799A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119078492A (en) * | 2024-11-08 | 2024-12-06 | 临工重机股份有限公司 | Vehicle thermal management system control method, device, hybrid vehicle and storage medium |
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2024
- 2024-04-15 CN CN202410448734.XA patent/CN118148799A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119078492A (en) * | 2024-11-08 | 2024-12-06 | 临工重机股份有限公司 | Vehicle thermal management system control method, device, hybrid vehicle and storage medium |
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