An oil guide cover, an oil guide mechanism, an engine, and a vehicle

Abstract

This disclosure provides an oil guide cover, an oil guiding mechanism, an engine, and a vehicle, relating to the field of engine technology. The oil guide cover includes: a main body comprising a recessed area and a transition annular groove located around the recessed area, the recessed area having an oil guide port; and an oil guide side plate located around the main body, including an inner edge connected to the transition annular groove and an outer edge away from the main body, the outer edge being higher than the inner edge, so that engine oil enters the transition annular groove and the oil guide port via the oil guide side plate. The oil guide cover of this application has an anti-foaming function, reducing the air bubble content in the engine oil and improving engine oil quality.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to an oil guide cover, an oil guide mechanism, an engine, and a vehicle. Background Technology

[0002] During engine operation, the oil in the oil pan contains more air. After being sucked in by the oil collector, the oil lubricates the various moving parts of the engine. When the moving parts are in motion, the air bubbles in the oil are squeezed and burst locally, causing irreversible damage to the surface of the moving parts, which in turn affects the reliability of the engine. Utility Model Content

[0003] In view of this, the purpose of this utility model is to propose an oil guide cover, an oil guide mechanism, an engine and a vehicle to solve the problem that the high gas content in the oil pan affects the reliability of the engine.

[0004] To achieve the above objectives, this utility model provides an oil guide cover, comprising: The main body includes a recessed area and a transition annular groove located around the recessed area, and the recessed area is provided with an oil guide port; An oil guide plate is located around the main body and includes an inner edge connected to the transition ring groove and an outer edge away from the main body. The outer edge is higher than the inner edge so that the oil enters the transition ring groove and the oil guide port through the oil guide plate.

[0005] Optionally, the oil guide cover is used to connect with the oil suction end face of the oil guide tube. The oil guide cover includes a first end face close to the oil suction end face and a second end face away from the oil suction end face. The first end face is located on the transition annular groove and connected to the oil suction end face of the oil guide tube. The second end face is located in the recessed area. The first end face is obliquely positioned relative to the second end face.

[0006] Optionally, the recessed area has a conical structure that gradually tapers from the first end face to the second end face.

[0007] Optionally, the oil guide plate includes multiple sub-oil guide plates, which surround the periphery of the main body and are detachably connected to the main body.

[0008] Optionally, the transition annular groove is provided with an exhaust hole on the side wall near the oil guide plate.

[0009] Optionally, a filter screen is provided in the recessed area.

[0010] Based on the same inventive concept, this disclosure also provides an oil guiding mechanism, including: an oil guiding pipe and an oil guiding cover as described in any of the above claims, wherein the end of the oil guiding pipe is provided with a mounting end plate, and the mounting end plate is connected to the first end face of the oil guiding cover so that the oil guiding pipe is obliquely positioned relative to the oil guiding cover.

[0011] Optionally, the outer edge of the filter screen is located between the mounting end plate and the first end face.

[0012] Based on the same inventive concept, this disclosure also provides an engine, including an oil pan and an oil guide cover as described in any of the above claims, wherein the oil guide cover is located at the bottom of the oil pan and the gap between the oil pan and the bottom wall of the oil pan is 8-15 mm.

[0013] Based on the same inventive concept, this disclosure also provides a vehicle including the oil guiding mechanism described in any of the above claims, or the engine described in any of the above claims.

[0014] As can be seen from the above description, the oil guide cover provided by this utility model is connected to the inlet of the oil pump's oil guide pipe. The oil guide cover includes a main body and an oil guide side plate. The main body provides an installation position for the oil guide side plate, which is located around the main body. The oil guide side plate includes an inner edge connected to the main body and an outer edge away from the main body. The outer edge is higher than the inner edge. When the oil in the oil pan is agitated during engine operation and flows towards the oil guide cover, the oil will first contact the outer edge of the oil guide side plate and then converge towards the main body along the inclined surface of the oil guide side plate. During this process, the air bubbles mixed in the oil, because their density is much smaller than that of the oil, will quickly rise upwards along the inclined surface of the side plate and eventually escape from the oil surface to the air layer at the top of the oil pan, achieving efficient defoaming. In addition, the main body includes a recessed area and a transition annular groove located around the recessed area. The recessed area is provided with an oil guide port, which is opposite to the inlet of the oil pump's oil guide pipe. The transition groove is a key transitional structure connecting the oil guide plate and the recessed area. After initial defoaming by the oil guide plate, the oil first flows into the transition groove, and then enters the oil guide port in the recessed area, forming a tortuous flow channel along the oil guide plate, transition groove, and recessed area. This tortuous flow channel design extends the oil's flow path, providing more time for air bubbles in the oil to rise. In addition, the tortuous flow channel also plays a role in stabilizing the flow. Through multiple turns in the path, it counteracts irregular disturbances caused by engine vibration or agitation by moving parts, ensuring that the oil maintains a stable directional flow and further reducing the generation of new air bubbles. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A cross-sectional view of the oil guide cover is shown for an embodiment of this utility model; Figure 2 This is a schematic diagram showing the exhaust port in an embodiment of the present invention; Figure 3 This is a schematic diagram showing the position of the oil guide cover according to an embodiment of the present invention; Figure 4 This is a schematic diagram showing the oil return hole in an embodiment of the present invention.

[0017] Reference numerals: 01, oil guide pipe; 02, oil pan; 03, oil pump; 1, oil guide cover; 11, main body; 111, recessed area; 1111, oil guide port; 112, transition ring groove; 1121, vent hole; 12, oil guide side plate; 121, inner edge; 122, outer edge; 13, first end face; 14, second end face; 2, filter screen; 3, mounting end plate; 4, oil return hole. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] As mentioned in the background, under the complex operating conditions of a normal engine, the oil pan, as the core hub for oil storage and circulation, directly affects the lubrication system efficiency and long-term reliability of the entire engine due to the physical state of the oil inside. However, due to the combined effects of multiple factors such as engine structural design, operating load, and oil characteristics, the gas content of the oil in the oil pan often shows an abnormally high level. This problem has become a key potential hazard restricting engine stability. From the perspective of the causes of air inclusion in engine oil, when the engine is running, moving parts such as the crankshaft and connecting rods rotate at high speed. Their ends reciprocate within the oil in the oil pan, acting like a mixer to continuously draw air into the oil. Especially under high-speed conditions, where the crankshaft speed can reach thousands of revolutions per minute, the intense impact between the moving parts and the oil disrupts the surface tension balance of the oil, causing air to disperse into the oil as tiny bubbles, forming a stable gas-liquid mixture. Simultaneously, if the oil level in the oil pan is too high, the agitation amplitude of the moving parts will further increase, significantly increasing the amount of air entrained. Conversely, while a low oil level reduces agitation, it may cause the oil pump to draw in air, also leading to air inclusion problems. In addition, the engine lubrication system relies on the oil pump to generate negative pressure, drawing oil from the oil pan through the oil collector to the various lubrication lines. During this process, if the oil collector's suction port is poorly sealed, if there are gaps at the line connections, or if the oil pan itself experiences minor leaks due to prolonged use, outside air will be drawn into the oil circulation system under negative pressure, mixing with the oil and entering the oil pan, thus increasing the air content. Furthermore, when the sealing performance between the engine cylinder wall and piston rings deteriorates, a small amount of high-pressure combustion gases from the combustion chamber can seep into the crankcase, and then into the oil pan through the crankcase ventilation system. This not only increases the air content of the oil but also causes oil oxidation and deterioration, further weakening its lubricating effect. When gaseous oil is drawn into the oil collector and delivered to various moving parts of the engine (such as crankshaft main journals, connecting rod journals, camshafts, and tappets), it triggers a series of serious lubrication failures, ultimately causing irreversible damage to the surfaces of these moving parts. During operation, these moving parts rely on an oil film formed by the engine oil for liquid lubrication, preventing direct metal-to-metal contact. However, air bubbles in the gaseous oil, under the high-pressure compression of the moving parts, will undergo violent localized bursting. The impact force generated by the instantaneous bursting of these bubbles can reach hundreds of megapascals. This high-frequency, high-intensity impact directly destroys the oil film on the surface of the moving parts, exposing the metal surfaces and creating dry friction or boundary friction. As friction intensifies, the surfaces of moving parts will experience severe wear, scratches, and even metal flaking. For example, under the combined effects of bubble bursting impact and dry friction, the originally smooth surface of the crankshaft journal will gradually develop uneven wear marks, and in severe cases, groove-like damage will appear. The contact surfaces of the camshaft and tappets may suffer from pitting, galling, and other faults due to oil film rupture, leading to abnormal operation of the valve train. More seriously, damage to the surfaces of moving parts will directly affect the engine's power output and operational stability. Increased clearance in moving parts due to wear will reduce the operating precision of components such as the crankshaft and camshaft, causing problems such as increased engine vibration and noise; while faults in the valve train will lead to disordered valve opening and closing, resulting in insufficient intake and poor exhaust, causing a decrease in engine power and an increase in fuel consumption. Meanwhile, metal debris generated by damage to the surface of moving parts can spread to other engine components via the random oil circulation system, such as clogging the oil filter and oil passages, causing obstruction of oil flow, further deteriorating lubrication conditions, and ultimately leading to fatal failures such as cylinder scoring and bearing seizure, seriously threatening the reliability and service life of the engine, and may even lead to engine scrapping, causing huge economic losses. In conclusion, the amount of gas in the engine oil pan affects the working condition of core engine components through the lubrication system, ultimately posing a fatal threat to the overall reliability of the engine.

[0021] To address the aforementioned problems, this application provides an oil guide cover, an oil guide mechanism, an engine, and a vehicle.

[0022] The following is in conjunction with the appendix Figure 1-4 This application describes an embodiment.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown, an oil guide cover 1 includes: The main body 11 includes a recessed area 111 and a transition annular groove 112 located around the recessed area 111. The recessed area 111 is provided with an oil guide port 1111. The oil guide plate 12 is located around the main body 11 and includes an inner edge 121 connected to the transition ring groove 112 and an outer edge 122 away from the main body 11. The outer edge 122 is higher than the inner edge 121 so that the oil enters the transition ring groove 112 and the oil guide port 1111 through the oil guide plate 12.

[0024] Specifically, the oil guide cover 1 is located inside the oil pan 02 and directly connects to the oil guide pipe 01 of the oil pump 03. Through the adaptation and installation with the oil suction port of the oil guide pipe 01, an efficient oil flow path is established from the oil pan 02 to the oil pump 03. Its overall structure is centered on the main body 11 and the oil guide side plate 12, which can be tightly connected by an integrated die-casting process. This integrated manufacturing method not only eliminates the sealing link of the traditional splicing structure, but also improves the overall structural strength through the overall fusion of metal materials, ensuring that stable structural sealing can still be maintained under the conditions of high-frequency engine vibration and long-term oil impact.

[0025] The oil guide plate 12 is annularly arranged around the main body 11. The oil guide plate 12 adopts an annular sloping structure with a higher outer edge and a lower inner edge. For example, the outer edge 122 is 5-8mm higher than the inner edge 121, and a smooth inclination angle of 8°-12° is formed between the inner and outer edges. This design guides the oil to flow smoothly inward along the plate surface and creates an optimal path for air bubbles to rise. When the oil in the oil pan 02 is agitated during engine operation and flows towards the oil guide sump 1, the oil first contacts the outer edge 122 of the oil guide plate 12, and then converges inward along the inclined plate surface. During this process, air bubbles mixed in the oil, due to their much lower density than the oil, rise rapidly along the inclined surface of the plate and eventually escape from the oil surface to the air layer at the top of the oil pan 02, achieving efficient defoaming.

[0026] The main body 11 has a recessed area 111 at its center, and a transition annular groove 112 is provided around the recessed area 111. The transition annular groove 112 is a key transition structure connecting the oil guide plate 12 and the recessed area 111. Specifically, the inner edge of the transition annular groove 112 is smoothly connected to the top of the recessed area 111 with an arc structure. This transition structure without sharp edges avoids the generation of impact turbulence when the oil flows from the oil guide plate 12 into the transition annular groove 112. The outer edge is smoothly connected to the inner edge 121 of the oil guide plate 12 with an arc structure, forming a continuous flow channel. From the perspective of oil flow path, after the oil is initially defoamed by the oil guide plate 12, it first flows into the transition annular groove 112, and then enters the recessed area 111 from the transition annular groove 112. The whole process forms a tortuous flow channel along the oil guide plate 12, the transition annular groove 112, and the recessed area 111. This bend in the flow path extends the oil's flow path, providing more time for air bubbles in the oil to rise. In addition, the bend in the flow path also helps to stabilize the flow. By changing the path multiple times, it counteracts irregular disturbances caused by engine vibration or agitation by moving parts, ensuring that the oil maintains a stable directional flow and further reducing the generation of new air bubbles.

[0027] In this embodiment, the oil guide cover 1 is connected to the inlet of the oil pump guide pipe 01. The oil guide cover 1 includes a main body 11 and an oil guide side plate 12. The main body 11 provides an installation position for the oil guide side plate 12. The oil guide side plate 12 is located around the main body 11. The oil guide side plate 12 includes an inner edge 121 connected to the main body 11 and an outer edge 122 away from the main body 11. The outer edge 122 is higher than the inner edge 121. When the oil in the oil pan 02 is agitated during engine operation and flows towards the oil guide cover 1, the oil will first contact the outer edge 122 of the oil guide side plate 12, and then converge towards the main body 11 along the inclined surface of the oil guide side plate 12. During this process, the air bubbles mixed in the oil, because their density is much smaller than that of the oil, will quickly rise upward along the inclined surface of the side plate and eventually escape from the surface of the oil to the air layer at the top of the oil pan 02, thus achieving efficient defoaming. In addition, the main body 11 includes a recessed area 111 and a transition annular groove 112 located around the recessed area 111. The recessed area 111 is provided with an oil guide port 1111, which is opposite to the port of the oil pump guide pipe 01. The transition annular groove 112 is a key transition structure connecting the oil guide plate 12 and the recessed area 111. After the oil is initially defoamed by the oil guide plate 12, it first flows into the transition annular groove 112, and then enters the oil guide port 1111 of the recessed area 111 from the transition annular groove 112, forming a tortuous flow channel along the oil guide plate 12, the transition annular groove 112, and the recessed area 111. This tortuous flow channel extends the flow path of the oil, providing more time for air bubbles in the oil to rise. In addition, the tortuous flow channel can also play a role in stabilizing the flow. Through multiple turns in the path, it can counteract the irregular disturbances caused by engine vibration or stirring of moving parts, so that the oil always maintains a stable directional flow, further reducing the generation of new air bubbles.

[0028] In some embodiments, the oil guide cover 1 is used to connect with the oil suction end face of the oil guide tube 01. The oil guide cover 1 includes a first end face 13 close to the oil suction end face and a second end face 14 away from the oil suction end face. The first end face 13 is located on the transition annular groove 112 and is connected to the oil suction end face of the oil guide tube 01. The second end face 14 is located in the recessed area 111. The first end face 13 is obliquely positioned relative to the second end face 14.

[0029] Specifically, the oil pump 03 generates negative pressure through the rotation of internal gears or a rotor, drawing oil from the oil pan 02. The oil is then pressurized and delivered to the engine's crankshaft, camshaft, pistons, and other moving parts via the oil filter, main oil passage, and other pipelines, providing lubrication, cooling, and rust protection for these high-speed rotating components. One end of the oil guide pipe connects to the oil inlet of the oil pump 03, and the other end extends into the oil within the oil pan 02, serving as the necessary passage for oil to enter the oil pump 03 from the oil pan 02.

[0030] In actual engine layouts, due to the space of the oil pan 02, the overall engine structure, and the characteristics of oil flow, the oil pump 03 and the oil guide pipe are mostly installed at an angle. It is precisely because of this angled design of the oil guide pipe that the first end face 13 is positioned at an angle relative to the second end face 14, ultimately ensuring that the second end face 14 (the lowest end of the recessed area 111) is horizontal. Specifically, the first end face 13 of the oil guide cover 1 is a mating surface specifically designed to connect with the oil suction end face of the oil guide pipe 01. Since the oil guide pipe 01 itself is angled, its oil suction end face is also inclined. Therefore, the first end face 13 needs to be designed with an inclination angle that perfectly matches the oil suction end face of the oil guide pipe 01 to achieve a tight fit and ensure smooth oil flow. The second end face 14, as the lowest point of the recessed area 111, is the final destination where the oil converges and enters the oil guide pipe. It must be kept horizontal to prevent the oil pump 03 from drawing in air instead of oil due to insufficient oil intake (e.g., low oil level in the oil pan 02 or air blocking oil flow in the oil passage). In such cases, the oil pump 03 cannot supply oil to the moving parts, leading to instantaneous lubrication failure. When the second end face 14 is horizontal, regardless of the angle of the oil guide pipe, as long as the oil converges in the recessed area 111, the horizontal second end face 14 ensures that the oil always covers the oil intake area, preventing localized oil shortages and structurally eliminating the risk of air intake.

[0031] In some embodiments, the recessed area 111 is a conical structure that gradually tapers from the first end face 13 toward the second end face 14.

[0032] In addition, the transition annular groove 112 is provided with an exhaust hole 1121 on the side wall near the oil guide plate 12. Figure 2 ).

[0033] Specifically, the recessed area 111 has a conical structure that gradually narrows from the first end face 13 to the second end face 14, meaning the recessed area 111 has a conical profile that is wider at the top and narrower at the bottom. When the engine oil flows from the transition ring groove 112 along the inclined wall of the recessed area 111, air bubbles mixed in the engine oil, due to their much lower density than the engine oil, will quickly rise upwards along the inclined wall of the recessed area 111 and escape into the transition ring groove 112. These vent holes 1121 are located at 1 / 2 to 2 / 3 of the height of the transition ring groove 112. The location is precisely aligned with the area where bubbles accumulate: when bubbles rise from the conical structure to the transition ring groove 112, they will stay briefly in the transition ring groove 112 and be discharged from the exhaust port 1121, and then released from the engine oil. In addition, when the oil pump 03 draws oil through the oil guide pipe 01, a slight negative pressure will be formed in the transition ring groove 112 to promote the rapid discharge of bubbles from the exhaust port 1121, thereby improving the bubble discharge efficiency.

[0034] In addition, multiple vent holes 1121 can be provided. For example, 4-6 vent holes 1121 can be evenly arranged around the circumference of the recessed area 111 to ensure that air bubbles in each area of ​​the transition ring groove 112 can be captured and discharged, avoiding the problem of local air bubble accumulation that cannot be discharged.

[0035] An oil return hole 4 is also provided at the connection between the transition annular groove 112 and the oil guide plate 12. Figure 4 This allows the oil in the recess formed by the transition annular groove 112 and the oil guide plate 12 to flow back to the bottom of the oil guide cover 1, and then participate in the circulation of lubricating oil.

[0036] In some embodiments, the oil guide plate 12 includes multiple sub-oil guide plates, which surround the periphery of the main body 11 and are detachably connected to the main body 11.

[0037] For example, the sub-oil guide plate can be a fan-shaped sheet structure, and its size is precisely matched with the diameter of the main body 11 and the number of sub-oil guide plates. Usually, the number of sub-oil guide plates is set to 3-4 pieces. After multiple sub-oil guide plates are spliced ​​together, they can completely surround the periphery of the main body 11 to form a closed annular oil guide edge plate 12. The sub-oil guide plate is made of the same high-strength aluminum alloy material as the main body 11, and is processed by stamping and precision milling. The inner and outer edges are rounded to avoid turbulence and air bubbles when the oil flows.

[0038] Each sub-oil guide plate has a connecting hole on its inner edge (the side closest to the main body 11), with the hole wall tapped to form an internal thread. Correspondingly, the outer periphery of the main body 11, near the transition ring groove 112, has threaded holes that perfectly match the number and position of the connecting holes on the sub-oil guide plates. The thread specifications are consistent with the connecting holes on the sub-oil guide plates, ensuring that the two can be detachably connected by bolts. To ensure sealing and stability after connection, the inner edge of the sub-oil guide plate also has a sealing groove with a built-in flexible oil-resistant rubber strip. When the sub-oil guide plate is fixed to the main body 11 by bolts, the rubber strip is squeezed and adhered, filling the gap between the sub-oil guide plate and the main body 11, preventing oil leakage from the connection gap.

[0039] The splicing surfaces of adjacent sub-oil guide plates are equipped with positioning structures. For example, one sub-oil guide plate has a raised positioning pin on its splicing surface, and the corresponding position of another sub-oil guide plate has a matching positioning hole. During installation, the adjacent sub-oil guide plates are first accurately positioned by using the positioning pin and positioning hole. Then, the bolts connected to the main body 11 are tightened to ensure that after the multiple sub-oil guide plates are spliced, the outer edge forms a smooth annular contour, and the inner edge seamlessly connects with the transition annular groove 112 without obvious steps or gaps, so as not to affect the normal flow of engine oil.

[0040] The combination of the aforementioned detachable sub-oil guide plates and multi-shaped sub-oil guide plates can easily handle the complex structures of different engine oil pans 02. Due to significant differences in the internal space and moving component (such as crankshaft and connecting rod) layout of the oil pan 02 among different engine models, traditional integrated oil guide plates 12 require separate mold design for each engine model, resulting in high costs and long adaptation cycles. With the detachable design, the sub-oil guide plates can be customized in various shapes according to the actual space of the oil pan 02: for example, in areas with protruding structures within the oil pan 02, the corresponding sub-oil guide plate can be designed as a concave arc shape to avoid the protruding components; in areas near the cylinder block sidewall with narrow spaces, the sub-oil guide plate can be designed as a trapezoidal shape to reduce space occupation; and for scenarios with special oil flow directions within the oil pan 02, the sub-oil guide plate can be designed as an inclined guide type to optimize the oil collection path. During installation, only the corresponding shaped sub-oil guide plates need to be selected and assembled one by one according to the structure of the oil pan 02, without modifying the main body 11 of the oil guide cover 1. This significantly improves the adaptability of the oil guide cover 1 to different engine models, while reducing mold development costs and shortening the product adaptation cycle. In addition, the detachable oil guide plate and the combination of multi-shaped sub-oil guide plates can specifically improve the oil guiding and defoaming effects. Specifically, different engines have significantly different operating requirements. For example, high-speed engines require higher oil collection speeds. Therefore, extending the sub-oil guide plates increases the oil receiving area and improves collection efficiency. Sub-oil guide plates of a single shape or a combination of multiple shapes can be selected according to actual operating requirements to achieve precise optimization of the oil guiding function. Furthermore, during the product development stage, different shaped sub-oil guide plates can be disassembled and replaced for rapid testing, comparing the oil guiding and defoaming effects of different designs, shortening the development cycle and reducing development costs. Furthermore, during long-term engine operation, the oil guide plate 12 is prone to localized wear due to oil impact and impurity friction. If the oil guide plate 12 is an integrated unit, the entire oil guide cover 1 and even some related components need to be disassembled for replacement, which is complex and time-consuming, and may also affect the installation accuracy of other components during the disassembly process. However, with the design of multiple detachable sub-oil guide plates, only the damaged sub-oil guide plates need to be disassembled and replaced individually: for example, if the outer edge of a sub-oil guide plate is worn and the oil guiding efficiency decreases, simply unscrew the bolts connecting the sub-oil guide plate to the main body 11, remove the old plate, and replace it with a new one. The entire process does not require touching the connection structure between the main body 11 of the oil guide cover 1 and the oil guide pipe 01, shortening the operation time and significantly reducing maintenance difficulty and downtime costs. At the same time, if the structure of the engine oil pan 02 changes due to subsequent modifications, the oil guide cover 1 can also be upgraded by disassembling the old sub-oil guide plates and replacing them with new sub-oil guide plates of a suitable shape, without having to purchase the entire set of oil guide cover 1 again, thus extending the overall service life of the product.

[0041] In summary, the detachable oil guide plate 12, combined with the multi-shaped sub-oil guide plate, solves the problems of poor adaptability and difficult maintenance of the integrated oil guide plate, and realizes the precise customization and optimization of the oil guide plate function, providing a flexible and efficient solution for engines of different models and operating conditions.

[0042] In some embodiments, a filter screen 2 is provided in the recessed area 111. Figure 1 ).

[0043] Specifically, filter screen 2 is located at the oil guide port 1111 in the recessed area 111. It can be made of multi-layer composite filter material, balancing filtration accuracy and oil flow efficiency. For example, the outer layer of filter screen 2 is a stainless steel support mesh (material 304 stainless steel) with a mesh size of 0.5-1mm, which supports the overall structure and prevents filter screen 2 from deforming. It also initially intercepts larger impurities (such as metal shavings and gasket residue with a diameter exceeding 1mm). The middle layer is an ultra-fine fiber filter layer (material glass fiber or polyester fiber), with a filtration accuracy of 50-80μm, which can filter out fine metal powder, carbon deposits, and other tiny impurities in the oil. Impurities intercepted by filter screen 2 will not enter the oil guide pipe 01 and oil pump 03, preventing wear on the gears or rotor of oil pump 03 and extending its service life. Furthermore, the filtered oil will not clog the engine's main oil passage, fuel injectors, or other precision oil circuit components, ensuring smooth oil delivery to all moving parts and preventing localized lubrication failure due to oil circuit blockage. The filter screen 2 is detachable, which facilitates regular maintenance of the filter screen 2. The filter screen 2 can be removed for cleaning or replacement according to the engine maintenance cycle. If there are few impurities on the surface of the filter screen 2, it can be reused after being back-blown with compressed air or cleaned with diesel. If the filter layer is severely clogged or damaged, a new filter screen 2 can be directly replaced. The maintenance cost is low and the long-term filtration effect can be guaranteed.

[0044] Based on the same inventive concept, such as Figure 1 and Figure 2 As shown, this disclosure also provides an oil guiding mechanism, including: an oil guiding pipe 01 and an oil guiding cover 1 corresponding to any of the above embodiments. The end of the oil guiding pipe 01 is provided with a mounting end plate 3. The mounting end plate 3 is connected to the first end face 13 of the oil guiding cover 1 so that the oil guiding pipe 01 is obliquely positioned relative to the oil guiding cover 1.

[0045] In addition, the outer edge of the filter screen 2 is located between the mounting end plate 3 and the first end face 13.

[0046] Specifically, the oil guide pipe 01 serves as the core channel for oil delivery, and its end is equipped with a mounting end plate 3. This end plate is installed on the first end face 13 (top surface of the transition annular groove 112) of the oil guide cover 1. The center of the mounting end plate 3 has a through hole with the same inner diameter as the oil guide pipe 01 for oil flow. For example, the mounting end plate 3 and the oil guide cover 1 can be connected by bolts. Specifically, the mounting end plate 3 has 3-4 evenly distributed circumferential connecting holes. The position and diameter of the connecting holes are completely matched with the threaded holes on the first end face 13 of the oil guide cover 1, and the two can be fixedly connected by hexagonal socket head cap screws. To enhance the sealing effect, an annular sealing gasket (made of oil-resistant nitrile rubber) is provided between the mating surfaces of the mounting end plate 3 and the first end face 13 of the oil guide cover 1. The inner diameter of the sealing gasket is the same as the through hole of the oil guide pipe 01, and the outer diameter matches the diameter of the mounting end plate 3. When the bolts are tightened, the sealing gasket is evenly compressed, which can completely block air from seeping in from the connection gap and prevent new air bubbles from mixing into the oil.

[0047] When the mounting end plate 3 is fixed to the first end face 13, the outer edge of the filter screen 2 is clamped by the mounting end plate 3 and the first end face 13, which improves the fixing stability and can effectively resist the displacement or deformation of the filter screen 2 caused by oil impact. The outer edge of the filter screen 2 can be treated with multi-layer composite material. For example, the edge material is a composite structure of oil-resistant rubber and fiber. When it is clamped by the mounting end plate 3 and the first end face 13, the edge will undergo slight deformation, filling the tiny gaps between the filter screen 2 and the first end face 13 and the mounting end plate 3, and preventing unfiltered oil from flowing into the oil guide pipe 01 from the edge gaps of the filter screen 2.

[0048] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the oil guiding mechanism includes an oil guide pipe 01 and an oil guide cover 1. The oil guide cover 1 has an anti-foaming function and also works with the oil guide pipe 01 to guide the engine oil smoothly to the oil guide pipe 01 (the oil guiding direction is as shown in the figure). Figure 3 (As indicated by the arrow), complete the precise oil transfer.

[0049] In some embodiments, an engine includes an oil pan 02 and an oil guide cover 1 corresponding to the above-described oil guide cover 1 embodiment. The oil guide cover 1 is located at the bottom of the oil pan 02 and the gap between it and the bottom wall of the oil pan 02 is 8-15mm.

[0050] Specifically, the oil guide cover 1 is located at the bottom of the oil pan 02 and maintains a gap of 8-15mm with the bottom wall of the oil pan 02. This gap can effectively prevent impurities from accumulating at the bottom of the oil pan 02. During engine operation, impurities such as metal shavings and carbon particles in the engine oil will naturally settle to the bottom wall of the oil pan 02 due to their higher density. If the gap between the oil guide cover 1 and the bottom wall is too small (less than 8mm), impurities are easily carried by the flow of engine oil to the oil guide path of the oil guide cover 1, increasing the risk of clogging of the filter screen 2. If the gap is too large (greater than 15mm), too much engine oil will remain at the bottom of the oil pan 02 and cannot be effectively collected by the oil guide cover 1. Especially when the engine oil level is low, it is easy to cause the oil pump 03 to cavitate. The 8-15mm gap allows the settled impurities to remain stably on the bottom wall without being disturbed by the oil drawn in by the oil guide sump 1, while also ensuring that the oil in the oil pan 02 (even if the level drops to a low level) can still flow smoothly into the oil guide sump 1, thus balancing impurity avoidance and oil collection efficiency.

[0051] In actual working conditions, this gap size can be finely adjusted according to the engine displacement and the structure of the oil pan 02: for engines with larger displacement (above 2.0L) and higher oil circulation requirements, the gap can be set to 12-5mm to increase the oil inflow speed; for engines with smaller displacement (1.0L~1.5L) and lower oil volume, the gap can be adjusted to 8-10mm to reduce oil retention at the bottom of the oil pan 02 and avoid the risk of cavitation.

[0052] Based on the same inventive concept, this disclosure also provides a vehicle, including an oil guiding mechanism corresponding to the oil guiding mechanism embodiment, or an engine corresponding to the engine embodiment, and has the beneficial effects of the corresponding embodiments, which will not be repeated here.

[0053] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the scope of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.

[0054] The embodiments of this utility model are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fume guide cover characterized by comprising: include: The main body (11) includes a recessed area (111) and a transition annular groove (112) located around the recessed area (111). The recessed area (111) is provided with an oil guide port (1111). An oil guide plate (12) is located around the main body (11) and includes an inner edge (121) connected to the transition ring groove (112) and an outer edge (122) away from the main body (11). The outer edge (122) is higher than the inner edge (121) so that the oil enters the transition ring groove (112) and the oil guide port (1111) through the oil guide plate (12).

2. The oil deflector shield of claim 1, wherein, The oil guide cover is used to connect with the oil suction end face of the oil guide tube (01). The oil guide cover includes a first end face (13) close to the oil suction end face and a second end face (14) away from the oil suction end face. The first end face (13) is located on the transition annular groove (112) and connected to the oil suction end face of the oil guide tube (01). The second end face (14) is located in the recessed area (111). The first end face (13) is obliquely positioned relative to the second end face (14).

3. The oil deflector shield of claim 2, wherein, The recessed area (111) has a conical structure, which gradually tapers from the first end face (13) toward the second end face (14).

4. The oil guide cover according to claim 1, characterized in that, The oil guide plate (12) includes multiple sub-oil guide plates, which surround the periphery of the main body (11) and are detachably connected to the main body (11).

5. The oil deflector shield of claim 1, wherein, The transition annular groove (112) has an exhaust hole (1121) on the side wall near the oil guide plate (12).

6. The oil deflector shield of claim 1, wherein, A filter screen (2) is provided in the recessed area (111).

7. An oil guiding mechanism, characterized in that, include: The oil guide tube (01) and the oil guide cover according to any one of claims 2-6, wherein the end of the oil guide tube (01) is provided with a mounting end plate (3), and the mounting end plate (3) is connected to the first end face (13) of the oil guide cover so that the oil guide tube (01) is obliquely positioned relative to the oil guide cover.

8. The oil guiding mechanism according to claim 7, characterized by The outer edge of the filter screen (2) is located between the mounting end plate (3) and the first end face (13).

9. An engine characterized by, It includes an oil pan (02) and an oil guide cover as described in any one of claims 1-6, wherein the oil guide cover is located at the bottom of the oil pan (02) and the gap between the oil pan (02) and the bottom wall of the oil pan (02) is 8-15 mm.

10. A vehicle characterized by comprising: Includes the oil guiding mechanism described in any one of claims 7-8, or the engine described in claim 9.

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