Oil filling pipe, engine assembly and vehicle
By installing a baffle structure inside the oil filler pipe, the problem of emulsion accumulation at the oil filler cap in low winter temperatures is solved, enabling smooth oil flow and effective prevention of emulsion, thus improving user experience and maintenance accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO GEELY ROYAL ENGINE COMPONENTS CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-04-28
AI Technical Summary
In low-temperature winter conditions, emulsions can easily accumulate at the engine oil filler cap, affecting user experience and potentially leading to misdiagnosis in after-sales maintenance.
Design an oil filling pipe with an internal shielding structure, including a baffle. The projected outer contour of the baffle is smaller than the cross-sectional area of the pipe's internal channel, ensuring smooth oil flow and blocking splashed oil during engine operation to prevent emulsion formation.
Reduce or avoid the formation of emulsions at the oil filler cap and oil filler neck, improve user experience, and prevent misdiagnosis during after-sales maintenance.
Smart Images
Figure CN224174164U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle parts technology, specifically to an oil pipe, an engine assembly, and a vehicle. Background Technology
[0002] The engine oil filler cap, serving as a seal for the oil filler neck, is typically located on the top cover of the engine for easy oil filling. However, due to space limitations on the top of the engine and for greater user convenience, some vehicle models do not have a direct oil filler cap on the top cover. Instead, a dedicated, connected oil filler hose is installed, with the top opening of the hose serving as the oil filler neck. The oil filler cap is then placed over this opening.
[0003] In the lower ambient temperatures of winter, engines that have been driven for short distances may not have fully warmed up. Because the oil filler cap is located at the end of the oil filler pipe and is at a lower temperature, water vapor rising from the crankcase encounters the cold cap and condenses, forming an emulsion that mixes with the oil adhering to the cap. This emulsion at the oil filler cap is a common phenomenon during winter driving and generally does not affect normal engine operation, but it can reduce the user experience and may lead to misdiagnosis by after-sales service personnel. Utility Model Content
[0004] The present invention aims to solve the problem of excessive emulsion accumulating on the oil filler cap at the top of the oil filler pipe.
[0005] To solve the above problems, this utility model provides an oil filling pipe, which includes a pipe body and a shielding structure disposed within the pipe body. The top opening of the pipe body is an oil filling port, and the shielding structure includes a baffle. On the cross-section of the pipe body, the area of the projected outer contour of the baffle is smaller than the cross-sectional area of the internal channel of the pipe body.
[0006] This utility model provides an oil filler pipe. The opening at the bottom of the pipe can be fixed and connected to the cover structure on top of the engine, while the opening at the top of the pipe serves as the oil filler port. When oil is not needed, an oil filler cap can be installed at the oil filler port at the top of the pipe to seal it. Unlike existing technologies, this pipe has an internal shielding structure, which includes at least one baffle. Furthermore, the area of the projected outer contour of the baffle on the cross-section of the pipe is smaller than the cross-sectional area of the internal channel of the pipe. In other words, the baffle does not completely cut off the internal channel of the pipe, ensuring that when the oil filler cap is opened, the baffle will not obstruct the downward flow of oil. Furthermore, when the engine is running, the baffle can block the oil splashing from below, preventing oil from splashing onto the oil filler cap and adhering to it. This reduces the formation of emulsions at the oil filler cap and oil filler cap, improves the user experience, and prevents after-sales service personnel from misjudging the situation due to emulsions adhering to the oil filler cap or oil filler cap.
[0007] Furthermore, two baffles are provided, namely a first baffle and a second baffle, which are spaced apart along the length of the tube; on the cross-section of the tube, the projections of the first baffle and the second baffle do not overlap at least partially.
[0008] Furthermore, on the cross-section of the tube, the projections of the first baffle and the second baffle partially overlap.
[0009] Furthermore, the shielding structure also includes an intermediate component, wherein the first baffle and the second baffle are respectively connected to the inner wall of the tube body, and the first baffle and the second baffle are indirectly connected through the intermediate component.
[0010] Furthermore, the intermediate component includes an intermediate cylinder and fasteners. One end of the first baffle and the second baffle are respectively connected to the inner wall of the tube body, and the other end of the first baffle and the second baffle are respectively connected to the outer wall of the intermediate cylinder. The fasteners are used to be inserted into the intermediate cylinder and connected to the external structure.
[0011] Furthermore, the intermediate component also includes a bushing, which is press-fitted into the intermediate cylinder, and the fastener is used to insert into the bushing.
[0012] Furthermore, one end of the baffle is connected to the inner wall of the pipe, and the other end of the baffle is inclined away from the oil filling port.
[0013] Furthermore, the baffle is a conical plate, and the projected shape of the conical plate on the cross-section of the tube is fan-shaped.
[0014] This utility model also provides an engine assembly, including the oil filling pipe as described above.
[0015] Since the technical improvements and effects of the engine assembly are the same as those of the oil filling pipe, the engine assembly will not be described in detail again.
[0016] This utility model also provides a vehicle, including the oil filler pipe as described above, or including the engine assembly as described above.
[0017] Since the technical improvements and effects of the vehicle are the same as those of the oil filler pipe or the engine assembly, the vehicle will not be described in detail again. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the oil filling pipe according to an embodiment of the present invention;
[0019] Figure 2 This is a top view of the oil filling pipe according to an embodiment of the present invention;
[0020] Figure 3 This is a bottom view of the oil filling pipe according to an embodiment of the present invention;
[0021] Figure 4 for Figure 3 Sectional view along the middle AA direction;
[0022] Figure 5 for Figure 3 Sectional view along the BB direction.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Pipe body; 11. Oil filler port; 21. Baffle; 211. First baffle; 212. Second baffle; 23. Intermediate assembly; 231. Intermediate cylinder; 232. Fastener; 233. Bushing. Detailed Implementation
[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0026] In the description of this utility model, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0027] Furthermore, in the accompanying drawings, the Z-axis represents the vertical direction, that is, the up-down direction, with the positive Z-axis indicating up and the negative Z-axis indicating down. It should also be noted that the aforementioned Z-axis representation is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model.
[0028] See Figures 1-5 An embodiment of the present invention provides an oil filling pipe, which includes a pipe body 1 and a shielding structure disposed within the pipe body 1. The top opening of the pipe body 1 is an oil filling port 11. The shielding structure includes a baffle 21. On the cross-section of the pipe body 1, the area of the projected outer contour of the baffle 21 is smaller than the cross-sectional area of the internal channel of the pipe body 1.
[0029] In this embodiment, the opening at the bottom of the pipe body 1 can be fixed and connected to the cover structure on top of the engine, while the opening at the top of the pipe body 1 serves as the oil filler port 11. When oil is not needed, the oil filler cap can be installed at the oil filler port 11 at the top of the pipe body 1 to seal the oil filler port 11. Unlike the prior art, the pipe body 1 has an internal shielding structure, which includes at least one baffle 21. In the cross-section of the pipe body 1, the area of the projected outer contour of the baffle 21 is smaller than the cross-sectional area of the internal channel of the pipe body 1. That is to say, the baffle 21 does not completely cut off the internal channel of the pipe body 1, so as to ensure that when the oil filler port 11 is opened, the baffle 21 will not block the downward flow of oil. Furthermore, when the engine is running, the baffle 21 can block the oil splashing from below, so as to prevent the oil from splashing onto the oil filler cap 11 and adhering to it. This reduces the formation of emulsions at the oil filler cap and the oil filler cap 11, improves the user experience, and also prevents after-sales maintenance personnel from misjudging due to emulsions adhering to the oil filler cap or the oil filler cap 11.
[0030] The aforementioned cover structure on top of the engine can also be a camshaft bearing end cover or a timing cover, etc. Taking a camshaft bearing end cover as an example, the bottom end of the tube 1 is fixed to the camshaft bearing end cover, and the opening at the bottom end of the tube 1 is connected to the internal space of the camshaft bearing end cover. In this way, when oil is added to the oil filler port 11 at the top of the tube 1, the oil will flow downward into the camshaft bearing end cover and finally into the crankcase at the bottom of the engine.
[0031] It should be noted that since the area of the projected outer contour of the baffle 21 is smaller than the cross-sectional area of the internal channel of the pipe body 1, when adding oil, the oil can flow downwards between the baffle 21 and the inner wall of the pipe body 1. In this case, the baffle 21 does not need to be provided with any through-hole structure for oil passage, thereby reducing the processing difficulty of the baffle 21.
[0032] Optionally, see Figures 2-5 Two baffles 21 are provided, namely a first baffle 211 and a second baffle 212. The first baffle 211 and the second baffle 212 are spaced apart along the length direction of the tube body 1. On the cross-section of the tube body 1, the projections of the first baffle 211 and the second baffle 212 do not overlap at least partially.
[0033] In this embodiment, for a single baffle 21, since the area of the projected outer contour of the baffle 21 is smaller than the cross-sectional area of the internal channel of the pipe body 1, the baffle 21 does not completely cut off the internal channel of the pipe body 1. In order to improve the blocking effect on the oil splashing from below, two baffles 21 are set. The first baffle 211 and the second baffle 212 are respectively set at intervals along the length direction of the pipe body 1. In the cross-section of the pipe body 1, since the area of the projected outer contour of the two baffles 21 is smaller than the cross-sectional area of the internal channel of the pipe body 1, that is to say, neither of the two baffles 21 completely cuts off the internal channel of the pipe body 1, but only cuts off part of the internal channel of the pipe body 1 at the corresponding length position of the pipe body 1, so as to ensure that when the oil filler cap 11 is opened, the setting of the two baffles 21 will not block the oil from flowing downward.
[0034] Based on this, at least part of the projections of the two baffles 21 on the cross-section of the pipe body 1 do not overlap. That is to say, at least part of the area of the internal channel of the pipe body 1 that is not cut off by the upper baffle 21 can be cut off by the lower baffle 21. In this way, when the engine is running, the two baffles 21 can block the oil splashing from below in a "combined" manner. This is more effective than a single baffle 21 in blocking the oil splashing from below, so as to minimize or even eliminate the formation of emulsions at the oil filler cap and the oil filler port 11.
[0035] Optionally, on the cross-section of the tube 1, the projections of the first baffle 211 and the second baffle 212 partially overlap.
[0036] In this embodiment, the projections of the two baffles 21 partially overlap. For the lower oil to splash onto the upper oil filler cap, it needs to follow a more complex, curved path to pass through the overlapping area of the two baffles 21. However, in actual working conditions, the path of the lower oil splash is often a regular straight path, making it difficult to pass through the overlapping area of the two baffles 21. Ultimately, this can further improve the blocking effect on the oil splashing from below.
[0037] It should be noted that the embodiment in which "the projection of the first baffle 211 partially overlaps with the projection of the second baffle 212" is not shown in the accompanying drawings.
[0038] Optionally, seeFigures 4-5 The shielding structure also includes an intermediate component 23. The first baffle 211 and the second baffle 212 are respectively connected to the inner wall of the tube body 1, and the first baffle 211 and the second baffle 212 are indirectly connected through the intermediate component 23.
[0039] In this embodiment, one end of the two baffles 21 can be connected to the inner wall of the pipe body 1, and the other end is connected to the intermediate component 23 respectively. The first baffle 211 and the second baffle 212 are indirectly connected together through the intermediate component 23, which can improve the structural strength of the two baffles 21 and prevent the baffles 21 from deforming due to the impact force of the oil when adding oil.
[0040] Optionally, see Figures 4-5 The intermediate component 23 includes an intermediate cylinder 231 and a fastener 232. One end of the first baffle 211 and the second baffle 212 are respectively connected to the inner wall of the tube body 1, and the other end of the first baffle 211 and the second baffle 212 are respectively connected to the outer wall of the intermediate cylinder 231. The fastener 232 is used to be inserted into the intermediate cylinder 231 and connected to the external structure.
[0041] In this embodiment, two baffles 21 are approximately located on both sides of the intermediate cylinder 231. One end of each baffle 21 is connected to the inner wall of the pipe body 1, and the other end is connected to the outer wall of the intermediate cylinder 231, thus indirectly connecting the two baffles 21 together through the intermediate cylinder 231. Furthermore, the intermediate cylinder 231 has a hollow interior. After the fasteners 232 are inserted into the intermediate cylinder 231, they can be connected and fixed to the external structure. For example, the fasteners 232 can be bolts, and the external structure can be the aforementioned cover structure on top of the engine. Ultimately, the oil filling pipe is installed and fixed using the fasteners 232, and the fasteners 232 do not occupy the external space of the pipe body 1, thus avoiding encroachment on the arrangement space of other structures on top of the engine.
[0042] The axis of the intermediate pipe is collinear with the axis of the pipe body 1, and the axis of the fastener 232 can also be collinear with the axis of the pipe body 1 to ensure that the oil filling pipe is under balanced force after the fastener 232 installs and fixes it.
[0043] Understandably, after the fastener 232 is inserted into the intermediate cylinder 231, it will seal the top opening of the intermediate cylinder 231 to prevent the oil splashing from below from passing upward through the intermediate cylinder 231.
[0044] Optionally, the intermediate cylinder 231, the first baffle 211, the second baffle 212, and the tube body 1 are integrally formed.
[0045] In this embodiment, the pipe body 1, the first baffle 211, the second baffle 212 and the intermediate cylinder 231 can be integrally formed, for example, made of hard plastic. By integrally forming, firstly, the overall structural strength of the oiling pipe can be guaranteed, and secondly, the pipe body 1, the intermediate cylinder 231 and the baffle 21 can be formed in one step, reducing the number of molds developed and the production cost.
[0046] See Figures 4-5 Optionally, the intermediate component 23 further includes a bushing 233, which is press-fitted into the intermediate cylinder 231, and the fastener 232 is used to be inserted into the bushing 233.
[0047] In this embodiment, as mentioned above, the tube body 1, baffle 21 and intermediate cylinder 231 can be made of plastic, while the bushing 233 can be made of steel. The bushing 233 can be installed into the intermediate cylinder 231 by press fitting, and then the bushing 233 contacts the fastener 232 to prevent the fastener 232 from damaging the intermediate sleeve.
[0048] like Figure 5 As shown, bushing 233 includes bushing body and shoulder located at the top of bushing body. During the process of bushing 233 being inserted downward into intermediate cylinder 231, when the shoulder of bushing 233 contacts the top surface of intermediate cylinder 231, bushing 233 is installed in place; fastener 232 is, for example, bolt. When bolt is inserted downward into bushing 233, when the bolt head contacts the shoulder of bushing 233, it indicates that the bottom end of bolt has been installed in place with the external structure, and at the same time, bolt completes to seal the top of bushing 233.
[0049] See Figures 4-5 Optionally, one end of the baffle 21 is connected to the inner wall of the pipe body 1, and the other end of the baffle 21 is inclined away from the oil filling port 11.
[0050] In this embodiment, the top of the baffle 21 is connected to the inner wall of the pipe body 1, and the bottom of the baffle 21 gradually slopes downward. This inclined baffle 21 includes a first inclined surface (not shown in the figure) and a second inclined surface (not shown in the figure). The first inclined surface faces the oil filler port 11, and the second inclined surface faces the bottom opening of the pipe body 1. When adding oil, the oil can easily flow smoothly down along the first inclined surface of the baffle 21, avoiding oil accumulation on the baffle 21. Furthermore, since the oil flows towards the end away from the inner wall of the pipe body 1 and then falls, the oil residue on the inner wall of the pipe body 1 can be reduced. In addition, when the oil splashed from below hits the second inclined surface of the baffle 21 upward, this part of the oil will also flow along the second inclined surface towards the end away from the inner wall of the pipe body 1 and fall back down, thereby preventing accumulation on the second inclined surface and reducing the possibility of residue on the inner wall of the pipe body 1.
[0051] Optionally, seeFigures 2-5 The baffle 21 is a conical plate, and the projected shape of the conical plate on the cross-section of the tube 1 is fan-shaped.
[0052] In this embodiment, each baffle 21 is a conical plate, and the projected shape of the conical plate on the cross-section of the tube 1 is fan-shaped. That is, the conical plate is not a strictly 360° conical plate, but a partial part of a 360° conical plate, or in other words, the conical plate does not form a complete cone. This ensures that the baffle 21 does not completely cut off the internal channel of the tube 1. By setting the baffle 21 as a conical plate, the top edge of the conical plate is arc-shaped and connected to the inner wall of the tube 1. When adding engine oil, the engine oil can collect at the bottom of the conical plate. When the engine oil flows down from the bottom of the conical plate, it will not touch the inner wall of the tube 1, thereby reducing the amount of engine oil residue on the inner wall of the tube 1. The bottom edge of the conical plate is arc-shaped. When there is an intermediate component 23, the bottom of the conical plate is connected to the intermediate component 23, specifically to the outer wall of the intermediate cylinder 231.
[0053] Another embodiment of this utility model provides an engine assembly, including the oil filler pipe as described above.
[0054] Since the technical improvements and effects of the engine assembly are the same as those of the oil filling pipe, the engine assembly will not be described in detail again.
[0055] Another embodiment of the present invention provides a vehicle including the oil filler pipe as described above, or including the engine assembly as described above.
[0056] Since the technical improvements and effects of the vehicle are the same as those of the oil filler pipe or the engine assembly, the vehicle will not be described in detail again.
[0057] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include at least one of those features.
[0058] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.
Claims
1. An oil filling pipe, characterized in that, The oil filling pipe includes a pipe body (1) and a shielding structure disposed inside the pipe body (1). The top opening of the pipe body (1) is an oil filling port (11). The shielding structure includes a baffle (21). On the cross-section of the pipe body (1), the area of the projected outer contour of the baffle (21) is smaller than the cross-sectional area of the internal channel of the pipe body (1).
2. The oil filling pipe according to claim 1, characterized in that, Two baffles (21) are provided, namely a first baffle (211) and a second baffle (212). The first baffle (211) and the second baffle (212) are spaced apart along the length direction of the tube (1). On the cross-section of the tube (1), the projection of the first baffle (211) and the projection of the second baffle (212) do not overlap at least partially.
3. The oil filling pipe according to claim 2, characterized in that, On the cross-section of the tube (1), the projections of the first baffle (211) and the second baffle (212) partially overlap.
4. The oil filling pipe according to claim 2, characterized in that, The shielding structure also includes an intermediate component (23), wherein the first baffle (211) and the second baffle (212) are respectively connected to the inner wall of the tube (1), and the first baffle (211) and the second baffle (212) are indirectly connected through the intermediate component (23).
5. The oil filling pipe according to claim 4, characterized in that, The intermediate component (23) includes an intermediate cylinder (231) and a fastener (232). One end of the first baffle (211) and the second baffle (212) are respectively connected to the inner wall of the tube (1), and the other end of the first baffle (211) and the second baffle (212) are respectively connected to the outer wall of the intermediate cylinder (231). The fastener (232) is used to be inserted into the intermediate cylinder (231) and connected to the external structure.
6. The oil filling pipe according to claim 5, characterized in that, The intermediate component (23) also includes a bushing (233) which is press-fitted into the intermediate cylinder (231), and a fastener (232) which is inserted into the bushing (233).
7. The oil filling pipe according to claim 1, characterized in that, One end of the baffle (21) is connected to the inner wall of the pipe (1), and the other end of the baffle (21) is inclined away from the oil filling port (11).
8. The oil filling pipe according to claim 4, characterized in that, The baffle (21) is a conical plate, and the projected shape of the conical plate on the cross section of the tube (1) is fan-shaped.
9. An engine assembly, characterized in that, Including the oil filling pipe as described in any one of claims 1-8.
10. A vehicle, characterized in that, It includes the oil filling pipe as described in any one of claims 1-8, or the engine assembly as described in claim 9.