Oil tank assembly, engine, power assembly and vehicle

Abstract

An oil tank assembly, an engine, a power assembly and a vehicle. The oil tank assembly is for use in an engine and comprises a first portion and a second portion, wherein the first portion is adapted to be arranged close to an exhaust pipe of the engine, and the second portion is adapted to be arranged away from the exhaust pipe of the engine; and the strength of the first portion is greater than the strength of the second portion.

Description

Oil reservoir assembly, engine, powertrain and vehicle

[0001] This application claims priority to Chinese patent application No. 202510381942.7, filed on March 27, 2025, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure relates to the field of engine technology, and in particular to an oil reservoir assembly, an engine, a powertrain, and a vehicle. Background Technology

[0003] An engine oil reservoir is a device in a vehicle's lubrication system used to store and replenish engine oil. In related technologies, dry sump lubrication systems use an external oil reservoir to replace the function of a wet sump. The external oil reservoir is independent of the engine and stores engine oil, ensuring a stable oil supply. By separating the oil storage and lubrication processes, dry sump lubrication avoids the resistance caused by crankshaft agitation of the oil and maintains crankcase vacuum, thereby reducing piston movement resistance and improving engine efficiency. Summary of the Invention

[0004] This disclosure discloses an oil reservoir assembly, an engine, a powertrain, and a vehicle.

[0005] In a first aspect, an oil reservoir assembly is provided for an engine. The oil reservoir assembly includes a first portion and a second portion; the first portion is adapted to be disposed near the exhaust pipe of the engine, and the second portion is adapted to be disposed away from the exhaust pipe of the engine. The strength of the first portion is greater than the strength of the second portion.

[0006] In some embodiments, the oil reservoir assembly includes an oil reservoir. The oil reservoir includes a first reservoir portion and a second reservoir portion, the first reservoir portion being adapted to be disposed near the exhaust pipe of the engine, and the second reservoir portion being adapted to be disposed away from the exhaust pipe of the engine. The strength of the first reservoir portion is greater than the strength of the second reservoir portion. A first portion of the oil reservoir assembly includes the first reservoir portion, and a second portion of the oil reservoir assembly includes the second reservoir portion.

[0007] In some embodiments, the first pot body portion and the second pot body portion satisfy at least one of the following: the first pot body portion and the second pot body portion are made of different materials; the wall thickness of the first pot body portion is greater than the wall thickness of the second pot body portion; and the first pot body portion has an additional reinforcing structure compared to the second pot body portion.

[0008] In some embodiments, the oil reservoir assembly includes an oil reservoir and a protective element. The oil reservoir includes a first reservoir portion and a second reservoir portion, the first reservoir portion being disposed near the exhaust pipe of the engine, and the second reservoir portion being adapted to be disposed away from the exhaust pipe of the engine; a first portion of the oil reservoir assembly includes the first reservoir portion, and a second portion of the oil reservoir assembly includes the second reservoir portion. The protective element is disposed outside the first reservoir portion.

[0009] In some embodiments, the protective element is configured as a protective cover, which is configured to enclose the first pot body portion.

[0010] In some embodiments, the first reservoir body has a filler neck. The reservoir assembly also includes a filler neck cap and a protective cap. The filler neck cap is configured to removably close the filler neck, and the protective cap covers the outside of the filler neck cap.

[0011] In some embodiments, the protective cover is made of metal; the first pot body is provided with a bushing, and the protective cover is connected to the bushing via a connector.

[0012] Secondly, an engine is also provided. The engine includes a body, an exhaust pipe, and the aforementioned oil reservoir assembly.

[0013] In some embodiments, the exhaust pipe is located above the engine body; the oil reservoir assembly includes an oil reservoir, which includes a first reservoir portion located on the upper part of the oil reservoir body and a second reservoir portion located on the lower part of the oil reservoir body. The first reservoir portion is disposed near the exhaust pipe of the engine, and the second reservoir portion is disposed away from the exhaust pipe of the engine and forms a chamber for containing lubricating oil. The first reservoir portion and the second reservoir portion are made of different materials and satisfy the condition that the strength of the first reservoir portion is greater than the strength of the second reservoir portion.

[0014] In some embodiments, the exhaust pipe is located above the engine body; the oil reservoir assembly includes an oil reservoir and a protective member. The oil reservoir includes a first reservoir portion located on the upper part of the oil reservoir body and a second reservoir portion located on the lower part of the oil reservoir body. The first reservoir portion is disposed near the exhaust pipe of the engine, and the second reservoir portion is disposed away from the exhaust pipe of the engine and forms a chamber for containing lubricating oil. The protective member is disposed outside the first reservoir portion and separates the first reservoir portion from the exhaust pipe.

[0015] In some embodiments, the protective member is configured as a protective cover, which is configured to conform to the shape of the first kettle body and wrap around the top of the first kettle body.

[0016] In some embodiments, the side of the second vessel body away from the engine is partially recessed to form a clearance opening.

[0017] In some embodiments, the oil reservoir assembly further includes a second protective plate disposed on the side of the second reservoir body away from the engine.

[0018] Thirdly, a powertrain is also provided. This powertrain includes the aforementioned engine.

[0019] In some embodiments, the exhaust pipe is located above the body.

[0020] In some embodiments, the powertrain further includes an electric drive assembly located below the engine.

[0021] Fourthly, a vehicle is also provided. The vehicle includes the aforementioned engine or the aforementioned powertrain.

[0022] In some embodiments, the engine is located in the front compartment of the vehicle; in the longitudinal direction of the vehicle, the oil reservoir assembly protrudes forward from the engine block.

[0023] In the oil reservoir assembly, the oil reservoir assembly includes a first part and a second part; the first part is adapted to be located near the exhaust pipe of the engine, and the second part is adapted to be located away from the exhaust pipe of the engine; the strength of the first part is greater than the strength of the second part, such that when the oil reservoir assembly is impacted, the second part away from the exhaust pipe breaks before the first part located near the exhaust pipe of the engine, and the oil stored in the oil reservoir assembly leaks out from the location away from the exhaust pipe of the engine, reducing the safety hazard caused by oil spraying onto the surface of the exhaust pipe and causing fire and smoke.

[0024] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0025] Figure 1 is a structural diagram of a powertrain according to some embodiments;

[0026] Figure 2 is a structural diagram of the oil reservoir assembly in the powertrain shown in Figure 1;

[0027] Figure 3 is an exploded view of the oil can assembly shown in Figure 2;

[0028] Figure 4 is a cross-sectional view of the oil can assembly shown in Figure 2;

[0029] Figure 5 is a structural diagram of the oil reservoir assembly in the powertrain shown in Figure 1 from another perspective;

[0030] Figure 6 is a block diagram of a vehicle according to some embodiments;

[0031] Figure 7 is a block diagram of another vehicle according to some embodiments.

[0032] Reference numerals: 100, Powertrain; 10, Engine; 101, Exhaust pipe; 102, Oil can mounting position; 103, Engine block; 30, Oil can assembly; 310, Oil can; 320, Protective cover; 330, Protective cap; 340, Second protective plate; 350, Oil can mounting bracket; 370, Connector; 380, Filler cap; 390, Bushing; 3101, First reservoir body; 3102, Second reservoir body; 3103, Third reservoir body; 3104, Filler port. Detailed Implementation

[0033] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this disclosure, and should not be construed as limiting this disclosure.

[0034] "At least one of A, B and C" has the same meaning as "at least one of A, B or C", both including the following combinations of A, B and C: only A, only B, only C, combinations of A and B, combinations of A and C, combinations of B and C, and combinations of A, B and C.

[0035] The specific embodiments of this disclosure will be described in detail below with reference to Figures 1-7.

[0036] In related technologies, dry sump lubrication systems use external oil reservoirs. When a vehicle is involved in a collision, the external oil reservoir is easily squeezed, causing it to deform and crack, thus posing a safety hazard.

[0037] Therefore, as shown in FIG1, some embodiments of this disclosure provide an oil reservoir assembly 30 for an engine 10. The oil reservoir assembly 30 includes a first portion and a second portion; the first portion is adapted to be disposed near the exhaust pipe 101 of the engine 10, and the second portion is adapted to be disposed away from the exhaust pipe 101 of the engine 10. The strength of the first portion is greater than the strength of the second portion. It should be noted that reference numeral 102 in FIG1 indicates the oil reservoir mounting position.

[0038] In the oil reservoir assembly 30, the oil reservoir assembly 30 includes a first part and a second part; the first part is adapted to be set near the exhaust pipe 101 of the engine 10, and the second part is adapted to be set away from the exhaust pipe 101 of the engine 10; the strength of the first part is greater than the strength of the second part, so that when the oil reservoir assembly 30 is impacted, the second part away from the exhaust pipe 101 breaks before the first part set near the exhaust pipe 101 of the engine 10, and the oil stored in the oil reservoir assembly 30 leaks out from the position away from the exhaust pipe 101 of the engine 10, reducing the safety hazard caused by oil spraying on the surface of the exhaust pipe 101 and causing fire and smoke.

[0039] The oil reservoir assembly 30 in some embodiments of this disclosure is used for oil storage and safety protection of the engine 10. The oil reservoir assembly 30 adopts a split structural design, for example, including a first part and a second part connected to each other. The first part is configured to be installed adjacent to the exhaust pipe 101 of the engine 10 to adapt to the high-temperature environment of that area; the second part is arranged away from the exhaust pipe 101 and close to a relatively safe area inside the engine compartment. Through this spatial arrangement, the oil reservoir assembly 30, while fulfilling its basic oil storage function, also achieves active avoidance of high-temperature engine components.

[0040] In some embodiments, the mounting distance between the first part and the exhaust pipe 101 can be any value within the range of 50-150mm. For example, the mounting distance can be 50mm, 60mm, 70mm, 80mm, 90mm, 100mm, 110mm, 120mm, 130mm, 140mm, or 150mm, etc. This ensures both the necessary safe distance for heat radiation between the first part and the exhaust pipe 101 and prevents the oil reservoir assembly 30 from excessively occupying engine compartment space.

[0041] The fracture threshold of the second part is calibrated experimentally. For example, the compressive strength of the second part is set to 60%-80% of that of the first part. For instance, the compressive strength of the second part can be 60%, 63%, 65%, 68%, 70%, 73%, 75%, 78%, and 80% of that of the first part. This ensures that when the collision energy reaches a critical value, the location of the oil leak is always opposite to that of the exhaust pipe 101. When the vehicle experiences a frontal or side collision, the fracture response time of the second part is earlier than that of the first part; this time difference provides a critical time window for the safe diversion of the oil.

[0042] In terms of protection, some embodiments of this disclosure optimize the combination of structural strength distribution and spatial location distribution. By strengthening the structural integrity of high-temperature areas and weakening the impact resistance of low-temperature areas, a dual protection mechanism of "near-end protection and far-end pressure relief" is formed. When the impact shock wave is transmitted to the oil reservoir assembly 30, the preferential rupture of the second part not only reduces the probability of oil spraying onto the surface of the exhaust pipe 101, but also guides the oil to a preset collection tank or diversion channel through directional leakage, so that most of the leaked oil can be safely recovered or guided to a non-hazardous area.

[0043] In terms of structural strength design, the first and second parts employ differentiated structures, materials, or processes to ensure that the strength of the first part is greater than that of the second part. For example, in some embodiments, the mechanical strength of the first part can be enhanced by increasing wall thickness, selecting high-strength materials, setting additional reinforcing structures, or adding reinforcing ribs, enabling it to withstand higher levels of impact loads. The second part, relative to the first part, forms a relatively weak area. The core of this strength differentiation is that when the oil reservoir assembly 30 is subjected to an external impact, the second part, being farther from the exhaust pipe 101, has lower mechanical strength and will preferentially fracture. At this time, the oil leakage path is forcibly guided away from the exhaust pipe 101, thereby spatially isolating the high-temperature heat source from the flammable liquid.

[0044] In some embodiments, as shown in Figures 4 and 5, the oil reservoir assembly 30 includes an oil reservoir 310, which includes a first reservoir body portion 3101 and a second reservoir body portion 3102. The first reservoir body portion 3101 is adapted to be disposed near the exhaust pipe 101 of the engine 10, and the second reservoir body portion 3102 is adapted to be disposed away from the exhaust pipe 101 of the engine 10; the strength of the first reservoir body portion 3101 is greater than the strength of the second reservoir body portion 3102. Here, the first part of the oil reservoir assembly 30 includes the first reservoir body portion 3101, and the second part of the oil reservoir assembly 30 includes the second reservoir body portion 3102.

[0045] In some embodiments, as shown in Figures 4 and 5, the oil can 310 may further include a third can body portion 3103. That is, the oil can 310 may be composed of three parts: upper, middle, and lower, and formed by welding. For example, the third can body portion 3103 may be located below the second can body portion 3102, or the third can body portion 3103 may be located between the first can body portion 3101 and the second can body portion 3102; this disclosure does not limit this.

[0046] In some examples, the oil reservoir assembly 30 includes an oil reservoir 310 with differentiated strength through a partitioned design. For example, the oil reservoir 310 is divided into a first reservoir portion 3101 and a second reservoir portion 3102 that are interconnected. The first reservoir portion 3101 is located on the side near the engine exhaust pipe 101, and its structure is reinforced by increasing the local wall thickness, using higher-strength engineering plastics, and adding transverse or longitudinal reinforcing ribs internally or externally. These designs enable this area (i.e., the area where the first reservoir portion 3101 is located) to effectively resist high-temperature radiation from the engine compartment and potential collision impacts. The second reservoir portion 3102, corresponding to the first reservoir portion 3101, is located in the opposite direction of the exhaust pipe 101. The second reservoir portion 3102 has a thinner wall thickness than the first reservoir portion 3101, uses a material of ordinary strength grade, and has no additional reinforcing structure, thus forming a clear mechanical strength gradient.

[0047] Therefore, in some embodiments, the first pot body 3101 and the second pot body 3102 may be made of different materials.

[0048] In some embodiments, as shown in Figures 1 to 3, the oil reservoir assembly 30 includes an oil reservoir 310 and a protective member. The oil reservoir 310 includes a first reservoir body 3101 and a second reservoir body 3102. The first reservoir body 3101 is disposed near the exhaust pipe 101 of the engine 10, and the second reservoir body 3102 is adapted to be disposed away from the exhaust pipe 101 of the engine 10. The protective member is disposed outside the first reservoir body 3101.

[0049] In some embodiments, the protective member of the oil can assembly 30 is configured with differentiated strength from the oil can 310 through a structural combination. In some examples, the protective member may adopt a U-shaped or semi-enclosed structure, wrapping around the outer surface of the first can body portion 3101 of the oil can 310, and the two are fixed by bolts or snap-fit ​​connection to form a composite structure.

[0050] For example, as shown in Figures 1 to 3, the protective component includes a protective cover 320, which is used to enclose the first pot body portion 3101. The material of the protective cover 320 can be the same high-strength metal or engineering plastic as the first pot body portion 3101 to provide additional rigid support. This combined design allows the first pot body portion 3101 and the protective component to together form the first part, thereby significantly improving the overall strength of the first part through a superposition effect, while the unenclosed second pot body portion 3102, as the second part, maintains its original strength level.

[0051] In some embodiments, the protective component can also be designed as a plate-like protective structure. For example, the protective component includes a first protective plate disposed parallel to the outer side of the first pot body portion 3101 facing the exhaust pipe 101. For example, the first protective plate can cover the outer surface of the first pot body portion 3101 facing the exhaust pipe 101. The coverage area of ​​the first protective plate can extend to the circumferential region of the first pot body portion 3101, forming a continuous protective layer in the direction of the radiating heat source of the exhaust pipe 101. In this case, the body strength of the first pot body portion 3101 and the additional strength of the first protective plate work together to make the impact resistance of the combined first part higher than that of the second pot body portion 3102, ensuring that the collision energy is preferentially released from the unprotected second part during transmission. Through this design, the overall structural integrity of the oil can assembly 30 is maintained, and the design of the detachable protective component achieves ease of maintenance.

[0052] In some embodiments, as shown in FIG4, the first reservoir body 3101 has an oil filler port 3104. The oil reservoir assembly 30 also includes an oil filler port cover 380 and a protective cover 330. The oil filler port cover 380 is used to detachably close the oil filler port 3104, and the protective cover 330 is provided on the outside of the oil filler port cover 380.

[0053] In some embodiments, as shown in Figures 3 and 5, the protective cover 330 is made of metal; the first pot body 3101 is provided with a bushing 390, and the protective cover 330 is connected to the bushing 390 via a connector 370. The bushing 390 may be made of metal.

[0054] For example, the metal shell of the protective cover 330 completely covers the outside of the filler cap 380. The outline of the protective cover 330 is parallel to the shape of the filler cap 380 and is securely connected to the bushing 390 by circumferentially distributed connectors 370. When an external impact is applied to the filler area, the metal protective cover 330 preferentially bears the load. The rigid structure of the protective cover 330 effectively blocks the upward trajectory of the filler cap 380 and limits the splashing range of the oil to the enclosed space formed by the protective cover 330 and the filler cap 380. The opening direction of the protective cover 330 is oriented so that the guide surface of the protective cover 330 faces away from the high-temperature area where the exhaust pipe 101 is located, ensuring that the leaking oil flows in a predetermined direction.

[0055] In other embodiments, the protective cover 330 can be a split design. The lower half of the protective cover 330 is fixedly connected to the bushing 390, and the upper half of the protective cover 330 is opened and closed via a hinge structure. This design maintains protective performance while preserving the normal opening and closing space of the filler cap 380. The mating surface between the bushing 390 and the first reservoir body 3101 adopts a serrated interlocking structure to enhance the torsional resistance between the two. The dome-shaped shape of the protective cover 330 can guide collision fragments to slide to both sides, avoiding direct impact on the weak parts of the filler cap 380. By combining the reinforced design of the protective cover 330 and the first reservoir body 3101, the oil reservoir assembly 30 can, under collision conditions, block the risk of oil splashing on the high-temperature side through the metal protective layer, and can also achieve controllable deformation by relying on the preset weakened area of ​​the second reservoir body 3102, forming a layered energy dissipation mechanism.

[0056] In some embodiments of this disclosure, the metal protective cap 330 adopts a metal shell that matches the shape of the fuel filler cap 380, and can completely enclose the fuel filler cap 380 to form an outer protective barrier. This metal shell is rigidly connected by a bushing 390 pre-embedded in the first vessel body 3101, forming a composite structure of a metal protective layer and a plastic sealing layer from the outside in. When an impact causes the fuel filler cap 380 to deform, the metal protective cap 330 absorbs the impact energy through its own deformation, while simultaneously constraining the displacement range of the fuel filler cap 380. The opening direction of the protective cap 330 is away from the exhaust pipe 101, so that splashed oil, after being blocked by the metal wall of the protective cap 330, can be guided along the inclined direction of the opening of the protective cap 330 towards a position away from the high-temperature area, thereby avoiding the heat radiation path of the exhaust pipe 101. The bushing 390 and the first vessel body 3101 adopt a serrated interlocking structure to improve the torsional resistance of the joint surface. The circumferentially distributed connectors 370 can use countersunk bolts, which maintains the connection strength between the protective cover 330 and the first reservoir body 3101, while avoiding secondary damage to the connectors 370 due to their protruding parts during impact. A buffer gap is maintained between the protective cover 330 and the filler cap 380, allowing the metal shell of the protective cover 330 to deform and absorb energy preferentially, thereby improving the reliability of the reservoir assembly 30.

[0057] This disclosure also discloses an engine 10 in some embodiments. As shown in FIG1, the engine 10 includes a body 103, an exhaust pipe 101, and the aforementioned oil reservoir assembly 30.

[0058] The exhaust pipe 101 is located above the engine block 103. As shown in Figures 4 and 5, the oil reservoir assembly 30 includes an oil reservoir 310, which includes a first reservoir portion 3101 located at the upper part of the oil reservoir body and a second reservoir portion 3102 located at the lower part of the oil reservoir body. The first reservoir portion 3101 is disposed near the exhaust pipe 101 of the engine 10, and the second reservoir portion 3102 is disposed away from the exhaust pipe 101 of the engine 10 and forms a chamber for containing lubricating oil. The first reservoir portion 3101 and the second reservoir portion 3102 are made of different materials and satisfy the condition that the strength of the first reservoir portion 3101 is greater than the strength of the second reservoir portion 3102.

[0059] For example, during manufacturing, the first reservoir body 3101 and the second reservoir body 3102 can be integrally molded, but the wall thickness and reinforcing structure of the two areas can be controlled differently through mold design. For instance, during injection molding, the wall thickness of the first reservoir body 3101 can be increased by 20%-30% by adjusting the mold cavity thickness, while pre-setting the forming space for reinforcing ribs in the corresponding areas. For metal oil reservoirs, a double-layer steel plate stacking structure can be added in high-temperature areas through stamping, while maintaining a single-layer structure in non-high-temperature areas. This process ensures the integrity of the overall structure and precisely achieves the strength distribution of different areas. When a vehicle collides, the impact energy is first transferred to the second reservoir body 3102, which has lower mechanical strength, causing it to fracture at a pre-set weak point, while the high-strength first reservoir body 3101 maintains structural stability, thereby forcibly guiding the oil leakage path away from the high-temperature exhaust pipe.

[0060] In some embodiments, the exhaust pipe 101 is located above the engine body 103; the oil reservoir assembly 30 includes an oil reservoir 310 and a protective member. The oil reservoir 310 includes a first reservoir portion 3101 located at the upper part of the oil reservoir body and a second reservoir portion 3102 located at the lower part of the oil reservoir body. The first reservoir portion 3101 is disposed near the exhaust pipe 101 of the engine 10, and the second reservoir portion 3102 is disposed away from the exhaust pipe 101 of the engine 10 and forms a chamber for containing lubricating oil. The protective member is disposed outside the first reservoir portion 3101 and separates the first reservoir portion 3101 from the exhaust pipe 101. In some embodiments, the protective member is configured as a protective cover 320, which is shaped to conform to the first reservoir portion 3101 and covers the upper part of the first reservoir portion 3101.

[0061] Furthermore, as shown in Figures 1-3, the oil reservoir assembly 30 can be connected to the engine block 103 via the oil reservoir mounting bracket 350. In some embodiments, the oil reservoir mounting bracket 350 employs a floating fixing structure, allowing the oil reservoir assembly 30 to generate displacement buffer during a collision. This flexible connection method can effectively absorb some of the impact energy, delay the moment of rupture, and improve the passive safety performance of the engine compartment.

[0062] The above structural configuration and its purpose have been described in detail in the previous embodiments and will not be repeated here. In some application scenarios, the exhaust pipe 101 of the engine 10 is located above the engine block 103. For example, for spatial layout adaptability, such as in a transverse engine compartment, the exhaust pipe can be positioned above to avoid chassis components such as the electric drive assembly, gearbox, and drive shaft. This arrangement is particularly suitable for compact vehicles, effectively utilizing the space above the engine and avoiding interference with the suspension system. Correspondingly, the oil reservoir 310 includes a first reservoir body 3101 located on the upper part of the oil reservoir body and a second reservoir body 3102 located on the lower part of the oil reservoir body. The first reservoir body 3101 is located close to the exhaust pipe 101 of the engine 10, and the second reservoir body 3102 is located away from the exhaust pipe 101 of the engine 10 and forms a chamber for containing lubricating oil.

[0063] For example, the vehicle's powertrain 100 (as shown in Figure 1) includes an engine 10 and an electric drive assembly (not shown in the figure), which is located below the engine 10, i.e., at the bottom of the engine 10 in Figure 1. Positioning the electric drive assembly below the engine 10 allows for vertical space compression. Furthermore, through this layered arrangement, the engine 10 and the electric drive assembly share the longitudinal projection space, reducing the overall height of the powertrain by 20%-30%. This layout is particularly suitable for hybrid vehicles, forming a compact series powertrain with a dual-motor structure (such as P1 motor and P3 motor). Here, the P1 motor can be understood as a motor located on the engine crankshaft, and the P3 motor can be understood as a motor located at the gearbox output end, directly connected to the drive shaft.

[0064] Furthermore, the drive shaft of the electric drive assembly and the input shaft of the gearbox are arranged coaxially, which reduces the number of gear meshing stages and improves the transmission efficiency to over 97%. Compared with the parallel shaft layout in related technologies, this design can reduce mechanical energy loss by 2-3%. In addition, a vertical thermal insulation layer can be formed between the high-temperature zone of the engine 10 (exhaust side temperature > 600°C) and the electric drive assembly (operating temperature < 150°C), which reduces the temperature rise of the electric drive assembly windings. This arrangement requires the exhaust pipe 101 of the engine 10 to be located above the engine block 103.

[0065] In some embodiments, the second reservoir portion 3102 is partially recessed on the side away from the engine 10 to form a clearance opening. In some embodiments, as shown in Figures 1-3, the oil reservoir assembly 30 further includes a second protective plate 340, which is disposed on the side of the second reservoir portion 3102 away from the engine 10.

[0066] Corresponding to the impact force direction of the oil reservoir assembly 30, the protective cover 320 mainly covers the upper middle part of the oil reservoir 310. In the direction closer to the engine body 103, the oil reservoir 310, through its contoured design, can completely cover the side of the engine body 103 as much as possible. On the side farther from the engine body 103, the oil reservoir 310 has a partial notch, forming a clearance opening. When the oil reservoir 310 is subjected to external forces such as impact, the second protective plate 340, for example, a metal second protective plate 340, can initially withstand part of the force. When the external force further compresses the oil reservoir 310, causing it to deform and break, the covering of the protective cover 320 allows oil to splash from the clearance opening side away from the engine body 103. In the direction closer to the engine body 103, due to the protective effect of the protective cover 320, oil will not splash towards the engine body 103, especially towards the top near the exhaust pipe 101, avoiding the risk of collision.

[0067] This disclosure also discloses a powertrain 100 in some embodiments. As shown in FIG1, the powertrain 100 includes the aforementioned engine 10.

[0068] This disclosure also discloses a vehicle 1000 in some embodiments. As shown in Figures 6 and 7, the vehicle 1000 includes the aforementioned engine 10, or includes the aforementioned powertrain 100.

[0069] In some embodiments, the engine 10 is located in the front compartment of the vehicle; in the longitudinal direction of the vehicle, the oil reservoir assembly 30 protrudes forward from the body 103 of the engine 10.

[0070] In some embodiments of the present disclosure, the oil reservoir assembly 30 includes a first part and a second part; the first part is adapted to be disposed near the exhaust pipe 101 of the engine 10, and the second part is adapted to be disposed away from the exhaust pipe 101 of the engine 10; the strength of the first part is greater than the strength of the second part, such that when the oil reservoir assembly 30 is impacted, the second part away from the exhaust pipe 101 breaks before the first part disposed near the exhaust pipe 101 of the engine 10, and the oil stored in the oil reservoir assembly 30 leaks out from the position away from the exhaust pipe 101 of the engine 10, reducing the safety hazard caused by oil spraying onto the surface of the exhaust pipe 101 and causing fire and smoke.

[0071] It is understood that the engine 10, powertrain 100 and vehicle 1000 in this disclosure inherit the improvements of the oil reservoir assembly 30, so the improvements will not be explained separately.

[0072] In the description of this disclosure, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this disclosure 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 disclosure.

[0073] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this disclosure, "a plurality of" means two or more, unless otherwise expressly specified.

[0074] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Although embodiments of this disclosure have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this disclosure, the scope of which is defined by the claims and their equivalents.

Claims

1. An oil reservoir assembly (30) for an engine (10), wherein, The oil reservoir assembly (30) includes a first part and a second part; the first part is adapted to be disposed near the exhaust pipe (101) of the engine (10), and the second part is adapted to be disposed away from the exhaust pipe (101) of the engine (10); The strength of the first part is greater than the strength of the second part.

2. The oil can assembly (30) according to claim 1, comprising an oil can (310), the oil can (310) comprising a first can body portion (3101) and a second can body portion (3102), the first can body portion (3101) being adapted to be disposed close to the exhaust pipe (101) of the engine (10), and the second can body portion (3102) being adapted to be disposed away from the exhaust pipe (101) of the engine (10); The strength of the first pot body part (3101) is greater than the strength of the second pot body part (3102). The first part of the oil pot assembly (30) includes the first pot body part (3101), and the second part of the oil pot assembly (30) includes the second pot body part (3102).

3. The oil can assembly (30) according to claim 2, wherein, The first pot body portion (3101) and the second pot body portion (3102) satisfy at least one of the following: The first pot body (3101) and the second pot body (3102) are made of different materials; The wall thickness of the first pot body portion (3101) is greater than the wall thickness of the second pot body portion (3102); and The first pot body (3101) has an additional reinforcing structure compared to the second pot body (3102).

4. The oil can assembly (30) according to any one of claims 1-3, comprising an oil can (310) and a protective member, wherein the oil can (310) comprises a first can body portion (3101) and a second can body portion (3102), the first can body portion (3101) being disposed near the exhaust pipe (101) of the engine (10), and the second can body portion (3102) being adapted to be disposed away from the exhaust pipe (101) of the engine (10), wherein a first part of the oil can assembly (30) comprises the first can body portion (3101), and a second part of the oil can assembly (30) comprises the second can body portion (3102); The protective component is located on the outside of the first pot body (3101).

5. The oil can assembly (30) according to claim 4, wherein, The protective component is constructed as a protective cover (320), which is configured to enclose the first pot body portion (3101).

6. The oil can assembly (30) according to claim 4 or 5, wherein, The first reservoir body (3101) has an oil filling port (3104); the oil reservoir assembly (30) also includes an oil filling port cover (380) and a protective cover (330), the oil filling port cover (380) being configured to detachably close the oil filling port (3104), and the protective cover (330) covering the outside of the oil filling port cover (380).

7. The oil can assembly (30) according to claim 6, wherein, The protective cover (330) is made of metal; the first pot body (3101) is provided with a bushing (390), and the protective cover (330) is connected to the bushing (390) through a connector (370).

8. An engine (10) comprising a body (103), an exhaust pipe (101), and an oil reservoir assembly (30) according to any one of claims 1-7.

9. The engine (10) according to claim 8, wherein, The exhaust pipe (101) is located above the engine body (103); the oil can assembly (30) includes an oil can (310), the oil can (310) includes a first can body portion (3101) located on the upper part of the oil can body and a second can body portion (3102) located on the lower part of the oil can body, the first can body portion (3101) is disposed close to the exhaust pipe (101) of the engine (10), and the second can body portion (3102) is disposed away from the exhaust pipe (101) of the engine (10) and forms a chamber for containing lubricating oil; The first pot body (3101) and the second pot body (3102) are made of different materials and satisfy the following condition: the strength of the first pot body (3101) is greater than the strength of the second pot body (3102).

10. The engine (10) according to claim 8, wherein, The exhaust pipe (101) is located above the engine body (103); the oil can assembly (30) includes an oil can (310) and a protective component. The oil can (310) includes a first can body portion (3101) located on the upper part of the oil can body and a second can body portion (3102) located on the lower part of the oil can body. The first can body portion (3101) is disposed close to the exhaust pipe (101) of the engine (10), and the second can body portion (3102) is disposed away from the exhaust pipe (101) of the engine (10) and forms a chamber for containing lubricating oil. The protective component is disposed on the outside of the first pot body (3101) and separates the first pot body (3101) from the exhaust pipe (101).

11. The engine (10) according to claim 10, wherein, The protective component is constructed as a protective cover (320), which is configured to conform to the shape of the first pot body (3101) and wraps around the top of the first pot body (3101).

12. The engine (10) according to claim 10 or 11, wherein, The second pot body (3102) is partially recessed on the side away from the engine (10) to form a clearance opening.

13. The engine (10) according to claim 10, wherein, The oil reservoir assembly (30) also includes a second protective plate (340), which is disposed on the side of the second reservoir body (3102) away from the engine (10).

14. A powertrain (100) comprising an engine (10) according to any one of claims 8-13.

15. The powertrain (100) according to claim 14, wherein, The exhaust pipe (101) is located above the body (103).

16. The powertrain (100) according to claim 15 further includes an electric drive assembly located below the engine (10).

17. A vehicle (1000), comprising: Engine (10) according to any one of claims 8-13; or The powertrain (100) according to any one of claims 14-16.

18. The vehicle (1000) according to claim 17, wherein, The engine (10) is located in the front compartment of the vehicle (1000); in the longitudinal direction of the vehicle (1000), the oil reservoir assembly (30) protrudes forward from the body (103) of the engine (10).

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