Magnetic force acquisition purifying device for methanol engine fuel system
By using an axially nested permanent magnet array and a scraping mechanism in the methanol engine fuel system, the problem of injector clogging caused by impurities in methanol fuel is solved, achieving efficient impurity adsorption and cleaning, and ensuring the smooth flow of the fuel system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 上海醇喜新能源科技有限公司
- Filing Date
- 2025-10-14
- Publication Date
- 2026-06-16
AI Technical Summary
Methanol fuel can easily introduce impurities into the engine fuel system, causing injector blockage, and existing technologies are unable to effectively filter and purify it.
An axially nested permanent magnet array and a scraping mechanism are used to create a gradient magnetic field through ring neodymium magnets to adsorb impurities. The scraping mechanism cleans the impurities adsorbed on the end face of the magnets. Combined with a filtration and collection mechanism, the impurities are removed efficiently.
It improves the purification efficiency of methanol fuel, ensures smooth fuel injector flow, significantly enhances impurity adsorption, and achieves efficient cleaning and collection of impurities.
Smart Images

Figure CN121047699B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of methanol engine technology, specifically to a magnetic acquisition and purification device for methanol engine fuel systems. Background Technology
[0002] Methanol, as a highly promising alternative fuel, is receiving increasing attention in engine applications. Its physicochemical properties are similar to gasoline, featuring high octane ratings, low emissions, and relatively low production costs. Methanol can be produced from various raw materials such as natural gas, coal, and biomass, which is of significant strategic importance for achieving energy diversification, reducing dependence on traditional petroleum resources, and ensuring national energy security. From an environmental perspective, methanol combustion produces significantly fewer pollutants such as sulfur oxides and particulate matter compared to traditional gasoline and diesel. Therefore, the promotion of methanol engines plays a positive role in improving air quality and addressing climate change.
[0003] However, the properties of methanol fuel also present unique challenges for its application in engines. Methanol is highly corrosive and swellable, posing a threat to many common metallic and non-metallic materials in the fuel system. Furthermore, methanol has a high latent heat of vaporization, which makes fuel vaporization difficult during cold starts, easily leading to starting difficulties. These characteristics require methanol engine fuel systems to possess higher corrosion resistance and reliability, and also create a demand for specialized purification and pretreatment technologies.
[0004] During the production, storage, transportation, and refueling of methanol fuel, various impurities inevitably come into contact with and accumulate. These impurities mainly include mechanical particulate matter (such as metal shavings and dust), colloids, asphaltenes, moisture, and potential microbial contaminants. Even methanol that appears pure may contain trace amounts of harmful impurities.
[0005] The fuel system of a methanol engine is a complex system specifically designed for the characteristics of methanol fuel. Because methanol fuel is prone to impurities, it is not easy to filter them, which can easily cause the fuel injectors to become clogged. Summary of the Invention
[0006] The purpose of this invention is to provide a magnetic acquisition and purification device for methanol engine fuel systems to solve the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a magnetic acquisition and purification device for a methanol engine fuel system, comprising a fuel supply pipe disposed on the methanol engine body, wherein multiple arrayed annular neodymium magnets are embedded in the inner wall of the fuel supply pipe, and adjacent annular neodymium magnets are opposite to each other; a rotating tube is rotatably connected to the fuel supply pipe via a rotating mechanism; and multiple retaining rings are fixedly connected to the inner wall of the fuel supply pipe, wherein the retaining rings are located between two adjacent annular neodymium magnets; and a scraping mechanism is provided on the side wall of the rotating tube for scraping and cleaning impurities adsorbed on the end face of the annular neodymium magnets.
[0008] Preferably, the rotating mechanism includes a ring disposed inside the rotating tube, and the ring is fixed to the inner wall of the oil supply pipe by a connecting block, and the rotation of the rotating tube is driven by a driving component.
[0009] Preferably, the driving component includes a turbine that is fixedly sleeved on the side wall of the rotating tube.
[0010] Preferably, the scraping mechanism includes multiple rectangular grooves formed on the side wall of the rotating tube, and a scraping cover is connected to each rectangular groove through a first reset mechanism. The side wall of the scraping cover has a slope and multiple filter holes. The bottom of the scraping cover has a first inclined surface. The movement of the scraping cover is driven by a pushing mechanism. The bottom of the rotating tube is provided with a filtering mechanism for filtering impurities, and the end of the rotating tube is provided with a collection mechanism for collecting impurities.
[0011] Preferably, the first reset mechanism includes a support plate fixedly connected to the inner wall of the oil supply pipe, and two sleeves are fixedly connected to the top of the support plate. A sleeve rod is inserted into each sleeve, and the upper end of the sleeve rod is fixed to the bottom of the scraping cover. A first spring is sleeved inside each sleeve.
[0012] Preferably, the pushing mechanism includes multiple pushing blocks, and the sidewalls of the pushing blocks are provided with a second inclined surface, so that the scraping cover can slide on the second inclined surface. The pushing blocks are connected to the rotating tube through a moving mechanism.
[0013] Preferably, the moving mechanism includes a moving rod inserted into the end of the rotating tube, and a pushing block is fixedly sleeved on the side wall of the moving rod. One end of the moving rod passes through the end of the rotating tube and is fixedly connected to a pushing disk. The moving rod is connected to the end of the rotating tube through a second reset mechanism.
[0014] Preferably, the second reset mechanism includes a fixing ring fixedly sleeved on the side wall of the moving rod, and a second spring is sleeved on the side wall of the moving rod.
[0015] Preferably, the filtration mechanism includes a gravity block fixedly connected to the bottom of the rotating tube, a filter screen inclined downwards fixedly connected to the top of the gravity block, and a through hole opened at the bottom of the rotating tube.
[0016] Preferably, the collecting mechanism includes an L-shaped tube fixedly inserted at the bottom of the oil supply pipe, a disc fixedly connected to the upper end of the L-shaped tube, a rotating tube rotatably connected to the side wall of the disc, a discharge valve fixedly connected to the lower end of the rotating tube, a storage tube fixedly connected to the lower end of the discharge valve, and a sealing cap threadedly connected to the lower end of the storage tube.
[0017] Compared with the prior art, the beneficial effects of the present invention are:
[0018] (1) The magnetic acquisition and purification device for methanol engine fuel system, by setting an axial nested permanent magnet array, forms a gradient magnetic field in the oil / liquid channel by superimposing annular neodymium magnets with different magnetic pole directions, which can adsorb impurities in methanol fuel, purify methanol fuel, filter fuel system, ensure smooth flow of fuel injectors, and when methanol fuel flows, under the action of rotating pipe and baffle ring, methanol fuel passes through multiple baffle rings in sequence and then passes through the end face of annular neodymium magnet, making the adsorption efficiency of impurities higher and the effect better.
[0019] (2) The magnetic acquisition and purification device for the methanol engine fuel system, by setting up a scraping mechanism, etc., when fuel is supplied, when methanol fuel impacts the end face of the push plate, it can drive multiple push blocks to move through the moving rod. At the same time, the second spring is stretched, and when the push block moves, the second inclined surface abuts against the side wall of the scraping cover, which can push the scraping cover to extend outward along the side wall of the rectangular groove and fit against the end face of the annular neodymium magnet. The first spring is stretched, and when methanol fuel impacts the surface of the turbine, it can drive the rotating tube to rotate along the ring and drive multiple scraping covers to slide on the end face of the annular neodymium magnet. Under the action of the slope, it can scrape and clean the impurities adsorbed on the end face of the annular neodymium magnet, ensuring its adsorption efficiency and effect.
[0020] (3) The magnetic acquisition and purification device for methanol engine fuel system, by setting up a filter mechanism and a collection mechanism, when the fuel supply is stopped, under the action of the gravity block, the filter screen can be placed at the bottom of the rotating tube, the moving rod and the push plate can be moved and reset under the action of the second spring, and at the same time, the push block is moved and reset and the scraper cover is gradually separated from the second inclined surface. At this time, the scraper cover can be moved and reset downward under the action of the first spring and moved into the rotating tube. The impurities in the scraper cover can slide downward under the action of the first inclined surface and fall onto the filter screen, slide into the L-shaped tube and enter the storage tube through the discharge valve for collection. The methanol fuel in the rotating tube can also be discharged through the through hole. When it is necessary to discharge the impurities, the discharge valve is closed and the sealing cover is opened to discharge. Attached Figure Description
[0021] Figure 1This is a schematic diagram of the overall structure of the present invention;
[0022] Figure 2 This is a partial cross-sectional view of the oil supply pipe in this invention;
[0023] Figure 3 This is a partial cross-sectional view of the oil supply pipe from another perspective in this invention.
[0024] Figure 4 This is a partial cross-sectional view of the rotating tube in this invention;
[0025] Figure 5 This is a schematic diagram of the scraping mechanism, the first reset mechanism, and the pushing mechanism in this invention;
[0026] Figure 6 for Figure 2 Enlarged structural diagram at point A;
[0027] Figure 7 for Figure 4 A magnified structural diagram at point B in the middle.
[0028] In the diagram: 1. Methanol engine body; 101. Fuel supply pipe; 201. Connecting block; 202. Ring; 301. Rectangular groove; 302. Scraper cover; 303. Filter hole; 304. Slope; 305. First inclined plane; 401. Support plate; 402. Sleeve; 403. Sleeve rod; 404. First spring; 501. Filter screen; 502. Gravity block; 503. Through hole; 601. L-shaped tube; 602. Disc; 603. Discharge valve; 604. Sealing cover; 605. Storage tube; 701. Pushing block; 702. Second inclined plane; 801. Moving rod; 802. Pushing disc; 9. Turbine; 10. Retaining ring; 11. Rotating tube; 12. Annular neodymium magnet; 1301. Fixing ring; 1302. Second spring. Detailed Implementation
[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0030] Please see Figures 1-7This invention provides a magnetic acquisition and purification device for a methanol engine fuel system, including a fuel supply pipe 101 installed on the methanol engine body 1. Multiple arrayed annular neodymium magnets 12 are embedded in the inner wall of the fuel supply pipe 101, with adjacent annular neodymium magnets 12 having opposite poles. A rotating pipe 11 is rotatably connected to the fuel supply pipe 101 via a rotating mechanism. Multiple retaining rings 10 are fixedly connected to the inner wall of the fuel supply pipe 101, with each retaining ring 10 positioned between two adjacent annular neodymium magnets 12. A scraping mechanism is provided on the side wall of the rotating pipe 11 for scraping and cleaning impurities adsorbed on the end faces of the annular neodymium magnets 12. By setting an axially nested permanent magnet array, and by superimposing annular neodymium magnets 12 with different magnetic pole directions, a gradient magnetic field is formed in the oil / liquid passage, which can adsorb impurities in the methanol fuel, purify the methanol fuel, filter the fuel system, ensure the smooth flow of the fuel injectors, and facilitate the scraping, cleaning, and collection of impurities adsorbed on the end faces of the annular neodymium magnets 12, ensuring the efficiency and effectiveness of the adsorption.
[0031] Please see Figure 6 The rotating mechanism includes a ring 202 disposed inside the rotating tube 11, and the ring 202 is fixed to the inner wall of the oil supply tube 101 by a connecting block 201. The rotation of the rotating tube 11 is driven by a driving component to ensure the normal rotation of the rotating tube 11.
[0032] Please see Figure 3 and Figure 6 The driving component includes a turbine 9 fixedly sleeved on the side wall of the rotating tube 11. When methanol fuel impacts the surface of the turbine 9, it can drive the rotating tube 11 to rotate along the ring 202.
[0033] Please see Figure 5 and Figure 7 The scraping mechanism includes multiple rectangular slots 301 formed on the side wall of the rotating tube 11, and a scraping cover 302 is connected to each rectangular slot 301 through a first reset mechanism. The scraping cover 302 is made of ceramic-coated stainless steel. The side wall of the scraping cover 302 has a slope 304 and multiple filter holes 303. The bottom of the scraping cover 302 is provided with a first inclined surface 305. The movement of the scraping cover 302 is driven by a pushing mechanism. The bottom of the rotating tube 11 is provided with a filtering mechanism for filtering impurities. The end of 1 is provided with a collection mechanism for collecting impurities. When fuel is supplied, the scraping cover 302 can be pushed outward along the side wall of the rectangular groove 301 and fit against the end face of the annular neodymium magnet 12 by the pushing mechanism. When methanol fuel impacts the surface of the turbine 9, it can drive the rotating tube 11 to rotate along the ring 202 and drive multiple scraping covers 302 to slide on the end face of the annular neodymium magnet 12. Under the action of the slope 304, the impurities adsorbed on the end face of the annular neodymium magnet 12 can be scraped and cleaned to ensure its adsorption efficiency and effect.
[0034] Please see Figure 5 and Figure 7 The first reset mechanism includes a support plate 401 fixedly connected to the inner wall of the oil supply pipe 101, and two sleeves 402 are fixedly connected to the top of the support plate 401. Each sleeve 402 is fitted with a sleeve rod 403, and the upper end of the sleeve rod 403 is fixed to the bottom of the scraping cover 302. Each sleeve 402 is fitted with a first spring 404, which guides and resets the movement of the scraping cover 302.
[0035] Please see Figure 5 and Figure 7 The pushing mechanism includes multiple pushing blocks 701, and the side wall of the pushing block 701 is provided with a second inclined surface 702, so that the scraping cover 302 can slide on the second inclined surface 702. The pushing block 701 is connected to the rotating tube 11 through a moving mechanism. The moving mechanism drives the multiple pushing blocks 701 to move. When the pushing block 701 moves, the second inclined surface 702 abuts against the side wall of the scraping cover 302, which can push the scraping cover 302 to extend outward along the side wall of the rectangular groove 301 and fit against the end face of the annular neodymium magnet 12.
[0036] Please see Figure 4 and Figure 7 The moving mechanism includes a moving rod 801 inserted at the end of the rotating tube 11, and a pushing block 701 fixedly sleeved on the side wall of the moving rod 801. One end of the moving rod 801 passes through the end of the rotating tube 11 and is fixedly connected to a pushing disk 802. The moving rod 801 is connected to the end of the rotating tube 11 through a second reset mechanism. When methanol fuel impacts the end face of the pushing disk 802, the moving rod 801 can drive multiple pushing blocks 701 to move.
[0037] Please see Figure 7 The second reset mechanism includes a fixed ring 1301 fixedly sleeved on the side wall of the moving rod 801, and a second spring 1302 sleeved on the side wall of the moving rod 801, which guides and resets the movement of the moving rod 801.
[0038] Please see Figure 4 and Figure 7The filtration mechanism includes a gravity block 502 fixedly connected to the bottom of the rotating tube 11. A downwardly inclined filter screen 501 is fixedly connected to the top of the gravity block 502, and a through hole 503 is provided at the bottom of the rotating tube 11. When the oil supply stops, the filter screen 501 can be positioned at the bottom of the rotating tube 11 under the action of the gravity block 502. The moving rod 801 and the pushing disk 802 can move and reset under the action of the second spring 1302. At the same time, the pushing block 701 is moved and reset, and the scraping cover 302 gradually separates from the second inclined surface 702. At this time, the scraping cover 302 can move and reset downward under the action of the first spring 404 and move into the rotating tube 11. The impurities in the scraping cover 302 can slide downward and fall onto the filter screen 501 under the action of the first inclined surface 305. In addition, the methanol fuel in the rotating tube 11 can also be discharged through the through hole 503.
[0039] Please see Figures 2-4 The collection mechanism includes an L-shaped tube 601 fixedly inserted at the bottom of the oil supply pipe 101. A disc 602 is fixedly connected to the upper end of the L-shaped tube 601. A rotating tube 11 is rotatably connected to the side wall of the disc 602. A discharge valve 603 is fixedly connected to the lower end of the rotating tube 11. A storage tube 605 is fixedly connected to the lower end of the discharge valve 603. A sealing cap 604 is threadedly connected to the lower end of the storage tube 605. Impurities in the scraping cover 302 can slide down onto the filter screen 501 under the action of the first inclined surface 305, slide into the L-shaped tube 601, and enter the storage tube 605 through the discharge valve 603 for collection. When it is necessary to discharge the impurities, the discharge valve 603 is closed and the sealing cap 604 is opened to discharge them.
[0040] Working principle: In use, by setting up an axial nested permanent magnet array, and superimposing annular neodymium magnets 12 with different magnetic pole directions, a gradient magnetic field is formed in the oil / fluid passage, which can adsorb impurities in methanol fuel, purify methanol fuel, filter the fuel system, and ensure the smooth flow of fuel injectors. Furthermore, when methanol fuel flows, under the action of rotating pipe 11 and baffle ring 10, the methanol fuel passes through multiple baffle rings 10 in sequence and then through the end face of annular neodymium magnet 12, resulting in higher adsorption efficiency and better effect for impurities.
[0041] During fuel supply, when methanol fuel impacts the end face of the push plate 802, the moving rod 801 drives multiple push blocks 701 to move. Simultaneously, the second spring 1302 is stretched. When the push blocks 701 move, the second inclined surface 702 abuts against the side wall of the scraper shroud 302, pushing the scraper shroud 302 outward along the side wall of the rectangular groove 301 and into contact with the end face of the annular neodymium magnet 12. The first spring 404 is stretched. When methanol fuel impacts the surface of the turbine 9, the rotating tube 11 rotates along the ring 202, causing multiple scraper shrouds 302 to slide on the end face of the annular neodymium magnet 12. Under the action of the slope 304, impurities adsorbed on the end face of the annular neodymium magnet 12 can be scraped and cleaned, ensuring its adsorption efficiency and effect.
[0042] When the fuel supply stops, the filter screen 501 is positioned at the bottom of the rotating tube 11 under the action of the gravity block 502. The moving rod 801 and the pusher plate 802 can move and reset under the action of the second spring 1302. At the same time, the pusher block 701 is moved and reset, causing the scraper cover 302 to gradually detach from the second inclined surface 702. At this time, the scraper cover 302 can move downward and reset under the action of the first spring 404 and move into the rotating tube 11. The impurities in the scraper cover 302 can slide downward onto the filter screen 501 under the action of the first inclined surface 305, slide into the L-shaped tube 601, and enter the storage tube 605 through the discharge valve 603 for collection. The methanol fuel in the rotating tube 11 can also be discharged through the through hole 503. When it is necessary to discharge the impurities, the discharge valve 603 is closed and the sealing cover 604 is opened to discharge.
[0043] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0044] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.
Claims
1. A magnetic acquisition and purification device for a methanol engine fuel system, comprising a fuel supply pipe (101) disposed on the methanol engine body (1), characterized in that: The inner wall of the oil supply pipe (101) is embedded with a plurality of arrayed annular neodymium magnets (12), and the opposite poles of two adjacent annular neodymium magnets (12) are opposite to each other. The oil supply pipe (101) is rotatably connected to a rotating pipe (11) through a rotating mechanism, and a plurality of retaining rings (10) are fixedly connected to the inner wall of the oil supply pipe (101). The retaining rings (10) are located between two adjacent annular neodymium magnets (12), and the side wall of the rotating pipe (11) is provided with a scraping mechanism for scraping and cleaning the impurities adsorbed on the end face of the annular neodymium magnets (12). The scraping mechanism includes multiple rectangular slots (301) formed on the side wall of the rotating tube (11), and a scraping cover (302) is connected to each rectangular slot (301) through a first reset mechanism. The side wall of the scraping cover (302) is provided with a slope (304) and multiple filter holes (303) are provided on the side wall of the scraping cover (302). The bottom of the scraping cover (302) is provided with a first inclined surface (305). The movement of the scraping cover (302) is driven by a pushing mechanism. The bottom of the rotating tube (11) is provided with a filtering mechanism for filtering impurities, and the end of the rotating tube (11) is provided with a collection mechanism for collecting impurities. The filtration mechanism includes a gravity block (502) fixedly connected to the bottom of the rotating tube (11), a filter screen (501) set at an incline and downward is fixedly connected to the top of the gravity block (502), and a through hole (503) is opened at the bottom of the rotating tube (11). The collection mechanism includes an L-shaped tube (601) fixedly inserted at the bottom of the oil supply pipe (101). A disc (602) is fixedly connected to the upper end of the L-shaped tube (601). The rotating tube (11) is rotatably connected to the side wall of the disc (602). A discharge valve (603) is fixedly connected to the lower end of the rotating tube (11). A storage tube (605) is fixedly connected to the lower end of the discharge valve (603). A sealing cap (604) is threadedly connected to the lower end of the storage tube (605).
2. The magnetic acquisition and purification device for methanol engine fuel system according to claim 1, characterized in that: The rotating mechanism includes a ring (202) disposed inside the rotating tube (11), and the ring (202) is fixed to the inner wall of the oil supply pipe (101) by a connecting block (201). The rotation of the rotating tube (11) is driven by a driving component.
3. The magnetic acquisition and purification device for methanol engine fuel system according to claim 2, characterized in that: The driving component includes a turbine (9) that is fixedly sleeved on the side wall of the rotating tube (11).
4. The magnetic acquisition and purification device for methanol engine fuel system according to claim 1, characterized in that: The first reset mechanism includes a support plate (401) fixedly connected to the inner wall of the oil supply pipe (101), and two sleeves (402) are fixedly connected to the top of the support plate (401). Each sleeve (402) is inserted with a sleeve rod (403), and the upper end of the sleeve rod (403) is fixed to the bottom of the scraping cover (302). Each sleeve (402) is fitted with a first spring (404).
5. The magnetic acquisition and purification device for methanol engine fuel system according to claim 1, characterized in that: The pushing mechanism includes multiple pushing blocks (701), and the side wall of the pushing block (701) is provided with a second inclined surface (702) so that the scraping cover (302) can slide on the second inclined surface (702). The pushing block (701) is connected to the rotating tube (11) through a moving mechanism.
6. The magnetic acquisition and purification device for methanol engine fuel system according to claim 5, characterized in that: The moving mechanism includes a moving rod (801) inserted at the end of the rotating tube (11), and a push block (701) is fixedly sleeved on the side wall of the moving rod (801). One end of the moving rod (801) passes through the end of the rotating tube (11) and is fixedly connected to a push disk (802). The moving rod (801) is connected to the end of the rotating tube (11) through a second reset mechanism.
7. The magnetic acquisition and purification device for methanol engine fuel system according to claim 6, characterized in that: The second reset mechanism includes a fixing ring (1301) fixedly sleeved on the side wall of the moving rod (801), and a second spring (1302) sleeved on the side wall of the moving rod (801).