CN216111004U - Vehicle-mounted fuel supply system for methanol engine and vehicle - Google Patents
Vehicle-mounted fuel supply system for methanol engine and vehicle Download PDFInfo
- Publication number
- CN216111004U CN216111004U CN202122979590.5U CN202122979590U CN216111004U CN 216111004 U CN216111004 U CN 216111004U CN 202122979590 U CN202122979590 U CN 202122979590U CN 216111004 U CN216111004 U CN 216111004U
- Authority
- CN
- China
- Prior art keywords
- dimethyl ether
- methanol
- gas
- engine
- reactor assembly
- 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.)
- Active
Links
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 582
- 239000000446 fuel Substances 0.000 title claims abstract description 85
- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims abstract description 382
- 239000007789 gas Substances 0.000 claims abstract description 113
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000002912 waste gas Substances 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 41
- 238000001816 cooling Methods 0.000 claims description 20
- 239000003638 chemical reducing agent Substances 0.000 claims description 17
- 230000008016 vaporization Effects 0.000 claims description 15
- 238000009834 vaporization Methods 0.000 claims description 14
- 238000001802 infusion Methods 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 6
- 238000005485 electric heating Methods 0.000 claims description 5
- 239000000110 cooling liquid Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000011049 filling Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003305 oil spill Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000004071 soot Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
Abstract
The utility model provides a vehicle-mounted fuel supply system for a methanol engine and a vehicle, and belongs to the field of methanol fuel supply. The vehicle-mounted fuel supply system includes: a methanol supply unit for supplying methanol fuel; a methanol fuel branch for controlled delivery of the methanol fuel in the methanol supply unit to the methanol engine; the dimethyl ether branch comprises a dimethyl ether reactor assembly and a dimethyl ether processing unit, wherein the dimethyl ether reactor assembly is used for controllably preparing dimethyl ether high-temperature gas from methanol fuel introduced into the dimethyl ether reactor assembly, the dimethyl ether processing unit is used for processing the dimethyl ether high-temperature gas into dimethyl ether gas with preset pressure and preset temperature and supplying the dimethyl ether gas to the methanol engine, and a heating pipeline is further arranged in the dimethyl ether reactor assembly and used for introducing waste gas exhausted by the methanol engine so that the dimethyl ether reactor assembly can utilize the heat of the waste gas. The utility model can improve the low-temperature cold starting performance of the methanol engine and reduce the cost of the vehicle.
Description
Technical Field
The utility model relates to the field of methanol fuel supply, in particular to a vehicle-mounted fuel supply system for a methanol engine and a vehicle.
Background
The heavy methanol engine takes M100 methanol as fuel and has the advantages of clean emission, good economy and the like. However, because methanol has large latent heat of vaporization at low temperature and poor evaporability, the concentration of combustible mixed gas is difficult to reach the ignition limit, and the low-temperature cold start of the methanol engine is difficult.
The main scheme for solving the problem of low-temperature cold start of the methanol engine is to adopt gasoline auxiliary start, and in addition, other fuel auxiliary start modes such as adding additives into methanol fuel, electrically heating, spraying starting liquid into an air inlet pipe and the like are adopted. The above proposal adopts gasoline fuel different from methanol or has poor starting effect. Because the main fuel is methanol, if gasoline is adopted for auxiliary starting, the problem of inconvenient gasoline filling is caused, customer complaints are caused, and the control on low-temperature emission is also very unfavorable. Meanwhile, a set of gasoline fuel supply system is required to be added on the vehicle, so that the purchase cost of the vehicle is increased.
SUMMERY OF THE UTILITY MODEL
It is an object of the first aspect of the utility model to provide an on-board fuel supply system for a methanol engine, which is capable of improving the low-temperature cold start performance of the methanol engine and reducing the cost of the vehicle.
It is another object of the present invention to improve the thermal efficiency of methanol engines.
It is an object of the second aspect of the utility model to provide a vehicle including the above-described on-vehicle fuel supply system.
In particular, the present invention provides an on-board fuel supply system for a methanol engine, comprising:
a methanol supply unit for supplying methanol fuel;
the methanol fuel branch is used for connecting the methanol supply unit and a methanol engine so as to controllably convey the methanol fuel in the methanol supply unit to the methanol engine;
the dimethyl ether branch is used for connecting the methanol supply unit and the methanol engine, the dimethyl ether branch comprises a dimethyl ether reactor assembly and a dimethyl ether treatment unit, the dimethyl ether reactor assembly is used for controllably preparing the methanol fuel introduced into the dimethyl ether reactor assembly into high-temperature dimethyl ether gas, the dimethyl ether treatment unit is used for treating the high-temperature dimethyl ether gas into dimethyl ether gas with preset pressure and preset temperature and supplying the dimethyl ether gas to the methanol engine, and the dimethyl ether branch is connected with the methanol supply unit and the methanol engine through the dimethyl ether treatment unit, wherein the dimethyl ether branch is used for connecting the methanol supply unit and the methanol engine through the dimethyl ether reactor assembly, the dimethyl ether reactor assembly is used for controllably preparing the high-temperature dimethyl ether gas from the methanol fuel introduced into the dimethyl ether reactor assembly, and the dimethyl ether treatment unit is used for treating the high-temperature dimethyl ether gas into dimethyl ether gas with preset pressure and preset temperature and supplying the dimethyl ether gas to the methanol engine
And a heating pipeline is also arranged in the dimethyl ether reactor assembly and is used for introducing the waste gas discharged by the methanol engine so that the dimethyl ether reactor assembly can utilize the heat of the waste gas.
Optionally, the dimethyl ether reactor assembly comprises a methanol vaporization chamber, a dimethyl ether reaction chamber and a dimethyl ether gas outlet cavity, and the heating pipeline sequentially penetrates through the methanol vaporization chamber, the dimethyl ether reaction chamber and the dimethyl ether gas outlet cavity.
Optionally, a cooling pipeline is arranged in the dimethyl ether reaction chamber, an overflow branch is arranged between the methanol fuel branch and the cooling pipeline, an oil overflow valve is arranged on the overflow branch and used for controlling the pressure of the methanol fuel branch and providing the methanol fuel serving as cooling liquid for the cooling pipeline, and an oil return tank is arranged at the downstream of the cooling pipeline.
Optionally, an electric heating element is further arranged in the dimethyl ether reactor assembly and used for heating the methanol vaporization chamber and the dimethyl ether reaction chamber when the vehicle is started in a cold machine.
Optionally, the dimethyl ether processing unit including set gradually in cooler, electronic booster pump and the pressure reducer in dimethyl ether reactor assembly low reaches, the cooler is used for cooling and storing dimethyl ether high temperature gas, electronic booster pump is used for carrying out the pressure boost to the dimethyl ether gas after the cooling, the pressure reducer is used for with the dimethyl ether gas after the pressure boost reduce to preset pressure and spray to the intake duct of methyl alcohol engine.
Optionally, a gas storage tank is further arranged between the electric booster pump and the pressure reducer and used for storing the pressurized dimethyl ether gas;
a first one-way valve which only allows gas to flow from the electric booster pump to the gas storage tank is arranged between the electric booster pump and the gas storage tank, and a second one-way valve which only allows gas to flow from the gas storage tank to the pressure reducer is arranged between the gas storage tank and the pressure reducer.
Optionally, an electromagnetic valve located at the upstream of the cooler is further arranged on the dimethyl ether branch for controlling the on-off of the dimethyl ether branch.
Optionally, a first sensor for detecting the residual amount of the gas in the gas storage tank is arranged at the gas storage tank, and a second sensor for detecting the temperature of the gas in the dimethyl ether reaction chamber is arranged in the dimethyl ether reaction chamber.
Optionally, the methanol supply unit comprises a methanol oil tank, a methanol rough filter and a methanol infusion pump which are connected in sequence;
and the methanol fuel branch is also provided with methanol fine filtration.
In particular, the utility model also provides a vehicle including the vehicle-mounted fuel supply system of any one of the above.
The dimethyl ether can be prepared on the vehicle at any time and supplied to the methanol engine through the arrangement of the dimethyl ether branch, for example, dimethyl ether gas is prepared through the dimethyl ether reaction device in the cold start stage of the vehicle and is injected into the methanol engine, and the low-temperature cold start performance of the methanol engine is greatly improved by utilizing the physical characteristics that the dimethyl ether is gaseous and easy to combust at normal temperature and normal pressure, so that the popularization and the sale of the methanol vehicle in a severe cold area are facilitated.
Furthermore, the dimethyl ether molecular structural formula has no C-C bond, only has C-H and C-O bonds, and also contains 34.8 percent of oxygen, so that the dimethyl ether can not generate soot under any working condition during combustion, and the emission of a methanol engine is not increased.
Further, the vehicle-mounted fuel supply system can provide two fuels, namely methanol and dimethyl ether, for the methanol engine, and only the methanol fuel needs to be filled during filling, so that the filling convenience of customers is improved, and other fuel supply systems do not need to be additionally arranged to meet the requirement of cold start like the prior art, so that the cost of the vehicle is reduced.
Furthermore, because the dimethyl ether reactor assembly of the system is provided with the heating pipeline, waste gas discharged by the methanol engine can be introduced, and after the engine is successfully started in a cold state, the waste gas of the engine can be used for heating the dimethyl ether reactor assembly so as to maintain the reaction temperature in the reaction chamber, continuously generate combustible mixed gas and obviously reduce the heat loss of the engine. During the normal operation process after the engine is started, the methanol engine can work under the dual modes of methanol fuel injection and dimethyl ether injection.
Furthermore, the methanol fuel flowing out of the methanol infusion pump flows into the overflow valve through the arrangement of the overflow branch, then flows into the oil return tank through the cooling pipeline. By the arrangement, the dimethyl ether reaction chamber can be cooled by using the methanol fuel so as to maintain the balance of the reaction temperature in the dimethyl ether reaction chamber.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a connection block diagram of an on-board fuel delivery system according to one embodiment of the present invention;
fig. 2 is a schematic diagram of an on-board fuel supply system according to an embodiment of the utility model.
Description of reference numerals:
10-methanol supply unit, 11-methanol oil tank, 12-methanol rough filtration, 13-methanol infusion pump, 20-methanol fuel branch, 21-methanol fine filtration, 30-dimethyl ether branch, 31-dimethyl ether reactor assembly, 311-heating pipeline, 312-methanol vaporization chamber, 313-dimethyl ether reaction chamber, 314-dimethyl ether gas outlet cavity, 315-methanol nozzle, 316-dimethyl ether gas outlet, 32-dimethyl ether processing unit, 321 cooler, 322-electric booster pump, 323-pressure reducer, 324-gas storage tank, 325-first one-way valve, 326-second one-way valve, 301-electromagnetic valve, 40-overflow branch, 401-oil overflow valve, 402-oil return tank, 200-methanol engine
Detailed Description
Fig. 1 is a connection block diagram of an on-vehicle fuel supply system according to an embodiment of the present invention. The present invention provides an on-board fuel supply system for a methanol engine 200, which, as shown in fig. 1, in one embodiment, includes a methanol supply unit 10, a methanol fuel branch 20, and a dimethyl ether branch 30. The methanol supply unit 10 is used to supply methanol fuel. The methanol fuel branch line 20 is used to connect the methanol supply unit 10 and the methanol engine 200 to controllably deliver the methanol fuel in the methanol supply unit 10 to the methanol engine 200. The dimethyl ether branch 30 is used for connecting the methanol supply unit 10 and the methanol engine 200, the dimethyl ether branch 30 comprises a dimethyl ether reactor assembly 31 and a dimethyl ether processing unit 32, the dimethyl ether reactor assembly 31 is used for controllably preparing the methanol fuel introduced into the dimethyl ether reactor assembly into dimethyl ether high-temperature gas, and the dimethyl ether processing unit 32 is used for processing the dimethyl ether high-temperature gas into dimethyl ether gas with preset pressure and preset temperature and supplying the dimethyl ether gas to the methanol engine 200. The dimethyl ether reactor is reaction equipment for preparing dimethyl ether by gas phase dehydration, and the equipment can be designed by referring to a dimethyl ether reaction device mature in the chemical industry to carry out miniaturization of a vehicle-mounted version. The dimethyl ether reactor assembly 31 is further provided with a heating pipeline 311 for introducing exhaust gas discharged from the methanol engine 200, so that the dimethyl ether reactor assembly 31 can utilize the heat of the exhaust gas.
In this embodiment, the dimethyl ether can be prepared at any time on the vehicle and supplied to the methanol engine 200 by the dimethyl ether branch 30, for example, at the cold start stage of the vehicle, the dimethyl ether gas is prepared by the dimethyl ether reaction device and is injected into the methanol engine 200, and the low-temperature cold start performance of the methanol engine 200 is greatly improved by using the physical characteristics that the dimethyl ether is gaseous and easily combusted at normal temperature and normal pressure, which is beneficial to the popularization and sale of the methanol vehicle in a severe cold region.
Furthermore, the dimethyl ether molecular structural formula has no C-C bond, only has C-H and C-O bonds, and also contains 34.8 percent of oxygen, so that the dimethyl ether can not generate soot under any working condition during combustion, and the emission of a methanol engine is not increased.
Further, the vehicle-mounted fuel supply system in the embodiment can provide two fuels, namely methanol and dimethyl ether, for the methanol engine 200, and only the methanol fuel needs to be filled during filling, so that the filling convenience of a customer is improved, and the requirement of cold start is not required to be met by adding other fuel supply systems like the prior art, so that the cost of the vehicle is reduced.
Further, because the heating pipeline 311 is arranged in the dimethyl ether reactor assembly 31 of the system, exhaust gas discharged by the methanol engine 200 can be introduced, after the engine is successfully started in a cold state, the dimethyl ether reactor assembly 31 can be heated by the exhaust gas of the engine to maintain the reaction temperature in the reaction chamber, combustible mixed gas is continuously generated, and the heat loss of the engine can be obviously reduced. During normal operation after engine start-up, methanol engine 200 may be operated in dual modes of methanol fuel injection and dimethyl ether injection.
Fig. 2 is a schematic diagram of an on-board fuel supply system according to an embodiment of the utility model. As shown in fig. 2, the dimethyl ether reactor assembly 31 includes a methanol vaporization chamber 312, a dimethyl ether reaction chamber 313 and a dimethyl ether outlet cavity 314, and the heating pipeline 311 sequentially penetrates through the methanol vaporization chamber 312, the dimethyl ether reaction chamber 313 and the dimethyl ether outlet cavity 314. That is, the exhaust gas inside the heating pipe 311 does not enter the inside of the dimethyl ether reaction chamber 313, but heat exchange is performed at the pipe wall.
Further, the methanol supply unit 10 includes a methanol tank 11, a methanol rough filter 12, and a methanol infusion pump 13, which are connected in this order. The methanol tank 11 is used for storing methanol fuel, and the methanol rough filter 12 is used for filtering fine impurities in the methanol fuel, so as to protect the methanol pump. The methanol infusion pump 13 is used to pump out methanol from the methanol tank 11 while the dimethyl ether reactor is controlled to pump methanol, for example during a cold start-up phase. A methanol nozzle 315 for injecting methanol into the methanol vaporizing chamber 312 is provided downstream of the methanol feed pump 13. The methanol is vaporized in the methanol vaporization chamber 312 and then flows into the dimethyl ether reaction chamber 313 for reaction to generate high-temperature dimethyl ether gas, and then the high-temperature dimethyl ether gas enters the dimethyl ether gas outlet cavity 314, and the dimethyl ether gas outlet cavity 314 is provided with a dimethyl ether gas outlet 316 for introducing the dimethyl ether gas into the dimethyl ether branch 30.
In one embodiment, a cooling pipeline (not shown) is arranged in the dimethyl ether reaction chamber 313, as shown in fig. 2, an overflow branch 40 is arranged between the methanol fuel branch 20 and the cooling pipeline, an oil spill valve 401 is arranged on the overflow branch 40 and is used for controlling the pressure of the methanol fuel branch 20 and providing the methanol fuel as cooling liquid for the cooling pipeline, and an oil return tank 402 is arranged downstream of the cooling pipeline.
Through the arrangement of the overflow branch 40, the methanol fuel flowing out of the methanol infusion pump 13 flows into the oil spill valve 401, then flows through the cooling pipeline and then flows into the oil return tank 402. In this way, the dimethyl ether reaction chamber 313 can be cooled by the methanol fuel to maintain the equilibrium of the reaction temperature in the dimethyl ether reaction chamber 313.
In a further embodiment, an electric heating element (not shown) is further provided in the dimethyl ether reactor assembly 31 for heating the methanol vaporization chamber 312 and the dimethyl ether reaction chamber 313 during cold start-up of the vehicle.
Because the operating temperature of the reaction device is required to be maintained between 250 ℃ and 330 ℃ in the preparation of dimethyl ether by methanol gas phase dehydration, a small amount of electric energy can be adopted to heat the electric heating element in the cold start stage of the methanol engine 200, so that the methanol vaporization chamber 312 is heated, the methanol is vaporized in the methanol vaporization chamber 312, and simultaneously the catalyst in the dimethyl ether reaction chamber 313 is activated, so that the reaction for preparing the dimethyl ether gas is facilitated.
In one embodiment, the dimethyl ether processing unit 32 includes a cooler 321, an electric booster pump 322 and a pressure reducer 323 sequentially disposed at the downstream of the dimethyl ether reactor assembly 31, the cooler 321 is used for cooling and storing high-temperature dimethyl ether gas, the electric booster pump 322 is used for boosting the cooled dimethyl ether gas, and the pressure reducer 323 is used for reducing the pressure of the boosted dimethyl ether gas to a preset pressure and injecting the gas to the gas inlet of the methanol engine 200.
In this embodiment, the dimethyl ether gas can be processed to a preset pressure and a preset temperature by the cooler 321, the electric booster pump 322, and the pressure reducer 323, which are sequentially provided, so as to be supplied to the methanol engine 200.
Further, a gas storage tank 324 is provided between the electric booster pump 322 and the pressure reducer 323 for storing the pressurized dimethyl ether gas.
The gas storage tank 324 can store a certain amount of pressurized dimethyl ether gas so as to supply the dimethyl ether gas to the methanol engine 200 in time when the methanol engine 200 needs to use the dimethyl ether, for example, in the cold start stage, if the dimethyl ether gas still exists in the gas storage tank 324, the dimethyl ether gas in the gas storage tank 324 can be directly used for the methanol engine 200.
In a further embodiment, a first check valve 325 for allowing only gas to flow from the electric booster pump 322 to the gas tank 324 is provided between the electric booster pump 322 and the gas tank 324, and a second check valve 326 for allowing only gas to flow from the gas tank 324 to the pressure reducer 323 is provided between the gas tank 324 and the pressure reducer 323. The reverse flow of the dimethyl ether gas can be prevented by the arrangement of the first check valve 325 and the second check valve 326.
In one embodiment, the dimethyl ether branch 30 is further provided with an electromagnetic valve 301 located upstream of the cooler 321, and used for controlling the on-off of the dimethyl ether branch 30. A first sensor for detecting the residual gas in the gas storage tank 324 is arranged, and a second sensor for detecting the temperature of the gas in the dimethyl ether reaction chamber 313 is arranged in the gas storage tank.
In one embodiment, the methanol fuel branch 20 is further provided with a fine methanol filter 21 for further filtering the methanol filtered by the coarse methanol filter 12, so as to ensure a methanol nozzle at the downstream methanol engine 200.
In the cold start stage of the vehicle, the key is turned to the ON gear to electrify, the vehicle-mounted fuel supply system firstly judges whether enough dimethyl ether gas exists in the gas storage tank 324, if so, the dimethyl ether gas in the gas storage tank 324 is utilized to be injected into an air inlet channel of the methanol engine 200, and if not, the electric infusion pump and the electric heating element are started to heat the dimethyl ether reactor assembly 31 so as to prepare the methanol fuel into the dimethyl ether and supply the dimethyl ether to the methanol engine 200 for use. Of course, each device on the dimethyl ether branch 30 is started to enter the working state at this time.
After the methanol engine 200 is successfully started, the exhaust gas generated by the methanol engine 200 heats the dimethyl ether reactor assembly 31 through the heating pipeline 311, and simultaneously, the methanol fuel flows through the cooling pipeline through the overflow branch 40 to cool the dimethyl ether reactor assembly 31 so as to maintain the reaction temperature of the dimethyl ether reactor assembly 31, so that the dimethyl ether reactor assembly works in an optimal temperature range and continuously generates combustible mixed gas, namely dimethyl ether gas, and the generated dimethyl ether gas can participate in the combustion of the methanol engine 200 and can also be stored in the gas storage tank 324 for later cold engine starting. The technical principle can obviously improve the heat efficiency of the methanol engine 200 and improve the combustion quality of the engine in the normal working process.
The utility model also provides a vehicle comprising the methanol engine 200 and the vehicle-mounted fuel supply system in any one or the combination of the embodiments.
The dimethyl ether reactor assembly 31 is provided with the heating pipeline 311, and waste gas discharged by the methanol engine 200 can be introduced, so that after the engine is successfully started in a cold state, the waste gas of the engine can be used for heating the dimethyl ether reactor assembly 31 so as to maintain the reaction temperature in the reaction chamber, continuously generate combustible mixed gas and obviously reduce the heat loss of the engine. During normal operation after engine start-up, methanol engine 200 may be operated in dual modes of methanol fuel injection and dimethyl ether injection.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the utility model may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. An on-board fuel supply system for a methanol engine, comprising:
a methanol supply unit for supplying methanol fuel;
the methanol fuel branch is used for connecting the methanol supply unit and a methanol engine so as to controllably convey the methanol fuel in the methanol supply unit to the methanol engine;
the dimethyl ether branch is used for connecting the methanol supply unit and the methanol engine, the dimethyl ether branch comprises a dimethyl ether reactor assembly and a dimethyl ether treatment unit, the dimethyl ether reactor assembly is used for controllably preparing the methanol fuel introduced into the dimethyl ether reactor assembly into high-temperature dimethyl ether gas, the dimethyl ether treatment unit is used for treating the high-temperature dimethyl ether gas into dimethyl ether gas with preset pressure and preset temperature and supplying the dimethyl ether gas to the methanol engine, and the dimethyl ether branch is connected with the methanol supply unit and the methanol engine through the dimethyl ether treatment unit, wherein the dimethyl ether branch is used for connecting the methanol supply unit and the methanol engine through the dimethyl ether reactor assembly, the dimethyl ether reactor assembly is used for controllably preparing the high-temperature dimethyl ether gas from the methanol fuel introduced into the dimethyl ether reactor assembly, and the dimethyl ether treatment unit is used for treating the high-temperature dimethyl ether gas into dimethyl ether gas with preset pressure and preset temperature and supplying the dimethyl ether gas to the methanol engine
And a heating pipeline is also arranged in the dimethyl ether reactor assembly and is used for introducing the waste gas discharged by the methanol engine so that the dimethyl ether reactor assembly can utilize the heat of the waste gas.
2. The on-vehicle fuel supply system according to claim 1,
the dimethyl ether reactor assembly comprises a methanol vaporization chamber, a dimethyl ether reaction chamber and a dimethyl ether gas outlet cavity, and the heating pipeline sequentially penetrates through the methanol vaporization chamber, the dimethyl ether reaction chamber and the dimethyl ether gas outlet cavity.
3. The on-vehicle fuel supply system according to claim 2,
the dimethyl ether reaction chamber is internally provided with a cooling pipeline, an overflow branch is arranged between the methanol fuel branch and the cooling pipeline, an oil overflow valve is arranged on the overflow branch and used for controlling the pressure of the methanol fuel branch and providing the methanol fuel as cooling liquid for the cooling pipeline, and an oil return tank is arranged at the lower part of the cooling pipeline.
4. The on-vehicle fuel supply system according to claim 3,
and an electric heating element is also arranged in the dimethyl ether reactor assembly and used for heating the methanol vaporization chamber and the dimethyl ether reaction chamber when the vehicle cold machine is started.
5. The on-vehicle fuel supply system according to claim 4,
dimethyl ether processing unit including set gradually in cooler, electric booster pump and the pressure reducer in dimethyl ether reactor assembly low reaches, the cooler is used for cooling and stores dimethyl ether high temperature gas, electric booster pump is used for carrying out the pressure boost to the dimethyl ether gas after the cooling, the pressure reducer is used for with the dimethyl ether gas after the pressure boost reduce to predetermine pressure and spray to the intake duct of methyl alcohol engine.
6. The on-vehicle fuel supply system according to claim 5,
a gas storage tank is also arranged between the electric booster pump and the pressure reducer and is used for storing the pressurized dimethyl ether gas;
a first one-way valve which only allows gas to flow from the electric booster pump to the gas storage tank is arranged between the electric booster pump and the gas storage tank, and a second one-way valve which only allows gas to flow from the gas storage tank to the pressure reducer is arranged between the gas storage tank and the pressure reducer.
7. The on-vehicle fuel supply system according to claim 6,
and the dimethyl ether branch is also provided with an electromagnetic valve positioned at the upstream of the cooler and used for controlling the on-off of the dimethyl ether branch.
8. The on-vehicle fuel supply system according to claim 7,
the dimethyl ether reaction chamber is internally provided with a second sensor for detecting the temperature of the gas inside the dimethyl ether reaction chamber.
9. The on-vehicle fuel supply system according to any one of claims 1 to 8,
the methanol supply unit comprises a methanol oil tank, a methanol rough filter and a methanol infusion pump which are connected in sequence;
and the methanol fuel branch is also provided with methanol fine filtration.
10. A vehicle characterized by comprising a methanol engine and the on-vehicle fuel supply system of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122979590.5U CN216111004U (en) | 2021-11-30 | 2021-11-30 | Vehicle-mounted fuel supply system for methanol engine and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122979590.5U CN216111004U (en) | 2021-11-30 | 2021-11-30 | Vehicle-mounted fuel supply system for methanol engine and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216111004U true CN216111004U (en) | 2022-03-22 |
Family
ID=80719136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122979590.5U Active CN216111004U (en) | 2021-11-30 | 2021-11-30 | Vehicle-mounted fuel supply system for methanol engine and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216111004U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12006886B1 (en) | 2023-03-07 | 2024-06-11 | Caterpillar Inc. | Systems and methods for pilot fuel synthesis |
| US12078115B1 (en) | 2023-06-20 | 2024-09-03 | Caterpillar Inc. | Systems and methods for pilot fuel synthesis using engine waste heat |
-
2021
- 2021-11-30 CN CN202122979590.5U patent/CN216111004U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12006886B1 (en) | 2023-03-07 | 2024-06-11 | Caterpillar Inc. | Systems and methods for pilot fuel synthesis |
| US12078115B1 (en) | 2023-06-20 | 2024-09-03 | Caterpillar Inc. | Systems and methods for pilot fuel synthesis using engine waste heat |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216111004U (en) | Vehicle-mounted fuel supply system for methanol engine and vehicle | |
| US7478628B2 (en) | Vapor and liquid fuel injection system | |
| RU2141050C1 (en) | Auxiliary fuel feed unit and method of its operation | |
| KR100783345B1 (en) | Internal combustion engine utilizing hydrogen | |
| USRE45413E1 (en) | Multi fuel co-injection system for internal combustion and turbine engines | |
| CN101418726B (en) | Fuel control system and control method for alcohols and gasoline dual fuel engine | |
| US11421629B2 (en) | Reforming system and engine system | |
| US3861367A (en) | Non-polluting internal combustion engine system | |
| JP2001516843A (en) | Fuel supply device | |
| CN105649828A (en) | Alcohol catalytic cracking hydrogen production plant and application method thereof on liquid fuel automobile | |
| US6557535B2 (en) | System and method for transferring heat from exhaust gasses to compressed gas fuel | |
| US4711223A (en) | Alcohol fuel conversion apparatus | |
| CN110043362B (en) | Cold start system for methanol vehicle | |
| CN111197532A (en) | Hydrogen/methanol composite fuel engine | |
| CN114687873A (en) | Fuel supply method, device and system for methanol engine | |
| US11635039B1 (en) | Work vehicle alcohol-based power system with on-board ether | |
| US4008692A (en) | Vehicle-mounted gaseous fuel generator | |
| CN111219245A (en) | Methanol fuel engine | |
| CN113217231A (en) | Fuel supply system and vehicle | |
| CN108049988A (en) | A kind of gasoline engine structure of Waste Heat Recovery high temperature grease mixing jetting | |
| US4635608A (en) | Alcohol fuel conversion apparatus for internal combustion engines | |
| CN215486337U (en) | Methanol engine heating system and vehicle | |
| CN115653748A (en) | Methanol and natural gas dual-fuel engine and control method | |
| CN115263535A (en) | Methanol reforming internal combustion engine power generation range-extending equipment and vehicle | |
| CN115324780A (en) | Reforming hydrogen production engine and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220831 Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Patentee after: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLE GROUP Co.,Ltd. Address before: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Patentee before: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLE GROUP Co.,Ltd. Patentee before: Zhejiang remote commercial vehicle R & D Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region after: China Patentee after: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. Address before: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region before: China Patentee before: ZHEJIANG GEELY NEW ENERGY COMMERCIAL VEHICLE GROUP Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240305 Address after: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region after: China Patentee after: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. Patentee after: Tianjin Alcohol Hydrogen Research and Development Co.,Ltd. Address before: 310051 No. 1760, Jiangling Road, Hangzhou, Zhejiang, Binjiang District Patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Country or region before: China Patentee before: Zhejiang Geely Remote New Energy Commercial Vehicle Group Co.,Ltd. |
|
| TR01 | Transfer of patent right |