A combined oil sump, thermal management and engine

Abstract

The application discloses a combined oil pan, heat management and engine, and belongs to the field of engines. The combined oil pan is located at the lower end of an engine cylinder body and comprises a connecting shell and an oil pan. The upper end of the connecting shell is connected with the lower end of the cylinder body, and the lower end of the connecting shell is connected with the oil pan. With the structure, on one hand, the connecting shell has strong modeling and bearing capacity, and can fully utilize the space to integrate and arrange accessories, and on the other hand, the connecting shell can be combined with different oil pans, and is more flexible and changeable. The application also discloses a heat management. The combined oil pan integrates part of pipelines before and after intercooling, and innovatively integrates heat exchange of a lubricating system and an air intake system, which is beneficial to heat management of the whole engine. The application further discloses an engine comprising the combined oil pan, so that the engine has the advantages of high reliability, compact structure, good maintenance performance and high thermal efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of engine, in particular to a combined oil pan, thermal management and engine. BACKGROUND

[0002] With the continuous development of engine technology, the types, functions and quantities of accessories carried by the engine periphery are increasing, and the size of the engine cannot be increased unlimitedly due to the space layout of the whole vehicle. As a structural part, the oil pan occupies a large amount of space at the lower end of the engine, and if it can be fully utilized, it will greatly increase the compactness and space utilization efficiency of the engine.

[0003] The oil pan is an important part of the engine lubrication system, generally located at the lower end of the engine cylinder block, and mainly bears the function of oil storage. The circulation of engine oil in the engine starts from the oil pan, flows through various oil components, and then returns to the oil pan for recycling. There are three kinds of current mainstream oil pan manufacturing processes, namely metal casting, metal stamping and plastic injection molding. Each of the three processes has its own shortcomings. The mold of the metal casting oil pan is complex and the cost is high. The bearing capacity of the metal stamping oil pan is poor and the shape is simple. The bearing capacity and reliability of the injection molding oil pan are poor.

[0004] In view of the above, it is necessary to design a combined oil pan for the engine, on the one hand to improve the shortcomings of the oil pan of a single process, and on the other hand to make the engine layout as compact as possible to realize more functions. SUMMARY

[0005] The technical task of the present application is to provide a combined oil pan, thermal management and engine to overcome the shortcomings of the oil pan of a single process, high integration, compact structure, capable of bearing accessories, improve the space utilization of the engine, and the integrated design is helpful for the engine to realize thermal management.

[0006] The technical solution adopted by the present application to solve its technical problems is:

[0007] A combined oil pan, comprising a connecting shell and an oil pan, the connecting shell has a first end face and a second end face, the first end face of the connecting shell is connected with the engine cylinder block, the second end face of the connecting shell is connected with the oil pan, the oil pan has a flange structure, and the flange structure is connected with the second end face of the connecting shell through an oil pan block and bolts.

[0008] The connecting shell is made of cast aluminum material by high pressure casting process.

[0009] The engine exhaust side of the connecting shell is integrated with a pre-intercooler air inlet pipe, both ends of the pre-intercooler air inlet pipe are a pre-air inlet and a pre-air outlet, and the pre-air inlet and the pre-air outlet are flange structures; the engine air inlet side of the connecting shell is integrated with a post-intercooler air inlet pipe, both ends of the post-intercooler air inlet pipe are a post-air inlet and a post-air outlet, and the post-air inlet and the post-air outlet are flange structures.

[0010] The pre-intercooler air inlet pipe is located on the inner cavity side of the connecting shell, the post-intercooler air inlet pipe is located on the outer side of the connecting shell, the pre-air outlet of the pre-intercooler air inlet pipe and the post-air inlet of the post-intercooler air inlet pipe are located on the front end of the connecting shell and face the lower side, mounting holes are formed in the pre-air outlet and the post-air inlet, and the pre-intercooler and the post-intercooler are hung.

[0011] The first end surface of the connecting shell is provided with a metal composite sealing gasket between the engine cylinder block.

[0012] The second end surface of the connecting shell is provided with a rubber sealing gasket between the oil pan.

[0013] The oil pan is made of a metal plate and manufactured by stamping.

[0014] A kind of thermal management, including combined oil pan, pre-intercooler air inlet pipe and post-intercooler air inlet pipe form intercooler pipeline, intercooler pipeline is integrated on connecting shell, and intercooler is installed in the front end of connecting shell.

[0015] An engine, including combined oil pan, the combined oil pan is connected to the bottom end of engine cylinder block.

[0016] Compared with the prior art, the combined oil pan, thermal management and engine of the present application have the following outstanding advantages: it can overcome the shortcomings of single-process oil pan, has high integration degree, compact structure, can carry accessories, improve the space utilization rate of engine, and the integrated design helps the engine to realize thermal management. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The combined oil pan structure provided by the present application is shown in the figure;

[0018] Figure 2 The combined oil pan explosion diagram provided by the present application is shown in the figure;

[0019] Figure 3 The top view of the connecting shell provided by the present application is shown in the figure;

[0020] Figure 4 The top view of the connecting shell provided by the present application is shown in the figure;

[0021] Figure 5 The right view (exhaust side) of the connecting shell provided by the present application is shown in the figure;

[0022] Figure 6 The left view (intake side) of the connecting housing provided by the present application;

[0023] Figure 7 The installation cross-sectional view of the connecting housing and the oil pan provided by the present application;

[0024] Figure 8 The engine layout diagram of the engine provided by the present application with the combined oil pan;

[0025] Figure 9 The engine layout diagram of the engine provided by the present application with the combined oil pan;

[0026] Explanation of reference signs:

[0027] 1 - connecting housing; 11 - first end face; 12 - second end face; 13 - pre-intercooler intake pipe; 131 - front intake port; 132 - front exhaust port; 14 - post-intercooler intake pipe; 141 - rear intake port; 142 - rear exhaust port; 2 - oil pan; 21 - flange structure; 3 - metal composite sealing gasket; 4 - oil pan support block; 5 - rubber sealing gasket; 6 - intercooler; 7 - engine cylinder block; 8 - turbocharger. DETAILED DESCRIPTION

[0028] The combined oil pan, thermal management and engine of the present application are described in detail below with reference to the accompanying drawings.

[0029] Reference Figure 1 and Figure 2 , Figure 1 The structural schematic diagram of the combined oil pan provided by the present application; Figure 2 The exploded view of the combined oil pan provided by the present application.

[0030] In a specific embodiment, as shown in Figure 1 and Figure 2 , the combined oil pan provided by the present application mainly comprises a connecting housing 1 and an oil pan 2. The connecting housing 1 and the oil pan 2 jointly undertake the oil storage function, the connecting housing has a first end face 11 and a second end face 12, the first end face 11 of the connecting housing 1 is connected with the engine cylinder block 7, and the second end face 12 of the connecting housing 1 is connected with the oil pan 2.

[0031] With this structure, since the connecting housing can undertake greater load, it can be used as a support for peripheral part arrangement, and the oil pan at the lower end can be flexibly matched, facilitating replacement and inspection.

[0032] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6 , Figure 3 The top view of the connecting housing provided by the present application,Figure 4 The bottom view of the connecting housing provided by the present application, Figure 5 The right view (exhaust side) of the connecting housing provided by the present application, Figure 6 The left view (intake side) of the connecting housing provided by the present application.

[0033] In another specific embodiment, the connecting housing 1 is made of cast aluminum material through high-pressure casting process.

[0034] By using high-pressure cast aluminum, on the one hand, the load-bearing capacity and lightweight of the connecting housing can be considered, and on the other hand, the high-pressure casting process makes the modeling more variable and better matches the peripheral design.

[0035] In another specific embodiment, as shown in Figure 3 , Figure 4 , Figure 5 The engine exhaust side of the connecting housing 1 is integrated with a pre-intercooler air pipe 13, and the pre-air inlet 131 and the pre-air outlet 132 of the pre-intercooler air pipe are flange structures.

[0036] In another specific embodiment, as shown in Figure 3 , Figure 4 , Figure 6 The engine intake side of the connecting housing 1 is integrated with a post-intercooler air pipe 14, and the post-air inlet 141 and the post-air outlet 142 of the post-intercooler air pipe 14 are flange structures.

[0037] By using this structure design, the intercooler pipe is directly integrated on the connecting housing, the structure is more compact and beautiful, and the flange design of the inlet and outlet makes the pipe connection more reliable and reduces the risk of leakage.

[0038] In another specific embodiment, as shown in Figure 3 The pre-intercooler air pipe 13 is located on the inner cavity side of the connecting housing 1, the post-intercooler air pipe 14 is located on the outer side of the connecting housing 1, the pre-air outlet 132 of the pre-intercooler air pipe 13 and the post-air inlet 141 of the post-intercooler air pipe 14 are located on the front end of the connecting housing 1 and face the lower side, and bolt holes are opened on the flanges for hanging the intercooler 6.

[0039] By using this structure design, the pre-intercooler air pipe 13 is designed on the inner cavity side of the connecting housing 1, which can better exchange heat with the oil, and the post-intercooler air pipe 14 is integrated on the outer side of the connecting housing 1, which can avoid the heat exchange between the oil and the air after the intercooler.

[0040] Referring to Figure 2 , Figure 8 , Figure 9 , Figure 2 The exploded view of the combined oil pan provided by the present application, Figure 8 and Figure 9An engine layout diagram provided by the present application is loaded with a combined oil pan.

[0041] In another specific embodiment, as shown in Figure 8 and Figure 9 , the first end surface 11 of the connecting shell 1 is connected to the engine cylinder through a plurality of bolts.

[0042] In another specific embodiment, as shown in Figure 2 , a metal composite sealing gasket 3 is arranged between the first end surface 11 of the connecting shell 1 and the engine cylinder.

[0043] With this design, due to the interface between the connecting shell 1 and the intermediate cooling pipeline and other accessories, the other end of these accessories is often fixed on the cylinder, and the use of the metal composite sealing gasket 3 can synchronize the vibration displacement of the installed connecting shell 1 and the cylinder, reducing the risk of accessory failure.

[0044] Referring to Figure 2 and Figure 7 , Figure 2 The exploded view of the combined oil pan provided by the present application, Figure 7 The installation cross-sectional view of the connecting shell 1 and the oil pan 2 provided by the present application.

[0045] In another specific embodiment, the oil pan 1 is made of metal plate material and manufactured by stamping process.

[0046] With this design, the main reason is that the stamping oil pan has a balanced comprehensive performance in reliability, mold cost, etc., in addition, due to the structure of the connecting shell 1 bearing most of the modeling and function, the oil pan 2 does not need complex modeling, overcoming the disadvantage of poor modeling ability of stamping oil pan.

[0047] In another specific embodiment, as shown in Figure 2 and Figure 7 , the oil pan 2 has a flange structure 21, and the flange structure 21 is connected to the second end surface 12 of the connecting shell 1 through the oil pan block 4 and the bolt. A rubber sealing gasket 5 is arranged between the oil pan 2 and the second end surface 12 of the connecting shell 1.

[0048] With this connection design, the disassembly and assembly of the oil pan are more simple.

[0049] Referring to Figure 3 and Figure 4 , Figure 3 The top view of the connecting shell provided by the present application, Figure 4 The bottom view of the connecting shell provided by the present application.

[0050] In one specific embodiment, as shown in Figure 3 and Figure 4As shown, a thermal management system is based on any of the above-mentioned combined oil pan structures, wherein the intercooling pipeline is integrated on the connecting housing 1, the intercooling inlet pipe 13 is located inside the connecting housing 1, the intercooling rear inlet pipe is located outside the connecting housing 1, and the intercooler 6 is installed at the front end of the connecting housing 1.

[0051] As mentioned earlier, this design, with the intercooler intake manifold 13 positioned within the inner cavity of the connecting housing 1, allows for better heat exchange between the airflow before intercooling and the engine oil. Since the airflow temperature before intercooling is significantly higher than the engine oil temperature, on the one hand, the high-temperature airflow from the intercooler intake manifold 13 can accelerate the engine oil's warm-up during startup, reducing warm-up time; on the other hand, the engine oil, acting as a medium, can cool the intake air temperature, sharing the function of the intercooler 6. This facilitates the miniaturization of the intercooler 6 and saves space. The intercooler rear intake manifold 14 is integrated on the outside of the connecting housing 1. Because the intake air temperature after intercooling is generally lower than the engine oil temperature, this arrangement prevents the engine oil from heating the intake air in reverse.

[0052] In addition, the flange interface design of the intercooler front and rear pipelines allows the intercooler 6 to be directly fixed to the front end of the connecting housing 1 via the flange, without the need for hose connection, making the overall structure more reliable and compact.

[0053] refer to Figure 8 and Figure 9 , Figure 8 and Figure 9 Different angle views of an engine layout diagram with a combined oil pan provided by the present invention.

[0054] In one specific implementation, such as Figure 8 and Figure 9 As shown, an engine uses a combined oil pan as described above. The combined oil pan is connected to the bottom of the engine block. The intake air, after being pressurized by the turbocharger 8, enters the intercooler intake pipe 13 connected to the housing 1 through a pipeline. Then, it enters the intercooler rear intake pipe 14 through the intercooler 6, and finally enters the engine through the connecting pipeline to participate in combustion.

[0055] Because the combined oil pan has the above-mentioned technical effects, the engine containing the combined oil pan also has the same technical effects and can achieve the above-mentioned thermal management objectives.

[0056] The embodiments listed above are for understanding the present invention only and are not intended to limit the technical solutions described in the present invention. Those skilled in the art can make various changes or modifications based on the technical solutions described in the claims, and all equivalent changes or modifications should be covered within the scope of protection of the claims of the present invention. Any aspects not detailed in the present invention are well-known techniques to those skilled in the art.

Claims

1. A composite oil pan, characterized in that: The system includes a connecting housing and an oil pan. The connecting housing has a first end face and a second end face. The first end face of the connecting housing is connected to the engine block, and the second end face of the connecting housing is connected to the oil pan. The oil pan has a flanged structure, which is connected to the second end face of the connecting housing by an oil pan support block and bolts. The connecting housing has an accessory integration function and can be used to arrange intercooler piping and other engine accessories. The engine exhaust side connected to the housing integrates an intercooler intake pipe, with an intake port and an exhaust port at each end, both of which are flange structures. The engine intake side connected to the housing integrates an intercooler rear intake pipe, with a rear intake port and an exhaust port at each end, both of which are flange structures. The intercooler intake pipe forms a heat exchange relationship with the oil passage of the engine lubrication system. The intercooler inlet pipe is located on the inner cavity side of the connecting housing, and the intercooler rear inlet pipe is located on the outer side of the connecting housing. The front outlet of the intercooler inlet pipe and the rear inlet of the intercooler rear inlet pipe are located at the front end of the connecting housing and face downward. Mounting holes are opened on the front outlet and the rear inlet for suspending the intercooler.

2. The combined oil pan according to claim 1, characterized in that: The connecting shell is made of cast aluminum and manufactured using a high-pressure casting process.

3. A combined oil pan according to claim 1, characterized in that: A metal composite sealing gasket is provided between the first end face of the connecting housing and the engine cylinder block.

4. A combined oil pan according to claim 1, characterized in that: A rubber sealing gasket is provided between the oil pan and the second end face of the connecting housing.

5. A combined oil pan according to claim 1, characterized in that: The oil pan is made of metal sheet and manufactured using a stamping process.

6. A thermal management system, characterized in that: The system includes the combined oil pan as described in claim 1, an intercooled inlet pipe and an intercooled rear inlet pipe forming an intercooled pipeline, the intercooled pipeline being integrated on the connecting housing, and the intercooler being installed at the front end of the connecting housing.

7. An engine, characterized by: Includes any one of the combined oil pans according to claims 1-5, wherein the combined oil pan is connected to the bottom end of the engine block.

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