Oil pan assembly and engine

Abstract

The utility model belongs to the technical field of engines, and particularly relates to an oil pan assembly and an engine. The oil pan assembly comprises an oil pan, a liquid inlet pipeline, a liquid outlet pipeline and a heater. The oil pan comprises an inner shell body and an outer shell body, an inner cavity defined by the inner shell body is used for storing oil liquid, a circulating cavity used for circulating cooling liquid is defined by the outer shell body and the outer wall of the inner shell body, and a liquid inlet and a liquid outlet which communicate with the circulating cavity are formed in the outer shell body; the inlet end of the liquid inlet pipeline is communicated with an outlet of an engine water tank, and the outlet end of the liquid inlet pipeline is communicated with the liquid inlet; the inlet end of the liquid outlet pipeline is communicated with the liquid outlet, and the outlet end of the liquid outlet pipeline is communicated with an inlet of an engine water tank; and the heater is arranged on the liquid inlet pipeline. By means of the oil pan assembly in the technical scheme, an engine can be heated or cooled according to using requirements, and the working performance of the engine is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, and particularly relates to an oil pan assembly and an engine. Background Art

[0002] The oil pan is the lower half of the crankcase, also known as the crankcase, and is used to store engine oil. The engine oil can circulate in the engine to lubricate each component of the engine and protect the components of the engine from wear. The circulated engine oil will flow back into the oil pan. The viscosity of the engine oil in the oil pan changes with the change of the oil temperature. When the temperature is low, the viscosity is high, making it difficult to meet the starting requirements of the engine; when the temperature is high, the viscosity is low, and the phenomenon of bearing shell scraping is likely to occur.

[0003] In order to increase the temperature of the engine oil in a low-temperature environment, a heater is usually provided in the oil pan. However, this method can only heat the engine oil and cannot cool the engine oil when the temperature of the engine oil is too high.

[0004] Therefore, there is an urgent need to propose an oil pan assembly and an engine to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to at least solve the problem that it is difficult to maintain the engine oil temperature within the range of use requirements. This purpose is achieved by the following technical solutions:

[0006] The first aspect of the utility model proposes an oil pan assembly, including:

[0007] An oil pan, the oil pan includes an inner shell and an outer shell. The inner cavity surrounded by the inner shell is used to store the oil liquid. A circulation cavity for circulating the coolant is formed by surrounding the outer wall of the outer shell and the inner shell. An inlet and an outlet respectively communicating with the circulation cavity are provided on the outer shell;

[0008] An inlet pipeline, the inlet end of the inlet pipeline is used to communicate with the outlet of the engine water tank, and the outlet end of the inlet pipeline communicates with the inlet;

[0009] An outlet pipeline, the inlet end of the outlet pipeline communicates with the outlet, and the outlet end of the outlet pipeline is used to communicate with the inlet of the engine water tank;

[0010] A heater, the heater is arranged on the inlet pipeline.

[0011] By providing a circulation chamber outside the inner housing of the oil pan and allowing the coolant to circulate in the circulation chamber, heat exchange between the coolant and the oil is achieved, thereby cooling or heating the oil. In a low-temperature environment, when the oil temperature is lower than the first preset temperature, the heater is activated. The coolant enters the inlet pipeline from the engine water tank, is heated by the heater, and then enters the circulation chamber through the inlet port to heat the oil in the inner housing. After heat exchange, the coolant flows out of the outer housing through the outlet port and returns to the engine water tank through the outlet pipeline. In a high-temperature environment, when the oil temperature is higher than the second preset temperature, the heater does not need to be activated. The coolant enters the inlet pipeline from the engine water tank, enters the circulation chamber through the inlet port to cool the oil in the inner cavity, and the coolant after heat exchange flows out of the outer housing through the outlet port and returns to the engine water tank through the outlet pipeline. Using the coolant to achieve heating or cooling of the oil can enable the engine to start normally at low temperatures and avoid the oil being diluted, which may cause the bearings or connecting rods to seize at high temperatures. Therefore, this oil pan assembly has a wide range of applications, has low requirements for the oil grade, and can achieve good economy.

[0012] In addition, the oil pan assembly according to the present utility model may further have the following additional technical features:

[0013] In some embodiments of the present utility model, the outer housing includes a first housing and a second housing that are isolated from each other. The first housing and the second housing are respectively located on both sides of the inner housing. The inlet port includes a first inlet port provided on the first housing and a second inlet port provided on the second housing. The outlet port includes a first outlet port provided on the first housing and a second outlet port provided on the second housing.

[0014] In some embodiments of the present utility model, the inlet pipeline includes an inlet main path, a first inlet branch, and a second inlet branch. The inlet end of the inlet main path is connected to the outlet of the engine water tank. The inlet ends of the first inlet branch and the second inlet branch are respectively connected to the outlet end of the inlet main path. The outlet end of the first inlet branch is connected to the first inlet port, and the outlet end of the second inlet branch is connected to the second inlet port. The heater is provided on the inlet main path.

[0015] In some embodiments of the present utility model, the outlet pipeline includes an outlet main path, a first outlet branch, and a second outlet branch. The inlet end of the first outlet branch is connected to the first outlet port, and the inlet end of the second outlet branch is connected to the second outlet port. The outlet ends of the first outlet branch and the second outlet branch are respectively connected to the inlet end of the outlet main path. The outlet end of the outlet main path is connected to the inlet of the engine water tank.

[0016] In some embodiments of the present utility model, the outer housing includes a third housing and a fourth housing. The third housing and the fourth housing are respectively located on both sides of the inner housing. The third housing and the fourth housing are connected and communicated through a connecting pipeline. The liquid inlet is provided on the third housing, and the liquid outlet is provided on the fourth housing. The coolant can enter the third housing from the liquid inlet, pass through the connecting pipeline into the fourth housing, and then flow out from the liquid outlet.

[0017] In some embodiments of the present utility model, the connecting pipeline is located in the inner cavity of the inner housing.

[0018] In some embodiments of the present utility model, a plurality of connecting pipelines are provided, and the plurality of connecting pipelines are arranged at intervals.

[0019] In some embodiments of the present utility model, a first control valve is provided on the liquid inlet pipeline, and the first control valve is used to control the flow rate of the liquid inlet pipeline.

[0020] In some embodiments of the present utility model, a second control valve is provided on the liquid outlet pipeline, and the second control valve is used to control the flow rate of the liquid outlet pipeline.

[0021] The present utility model also provides an engine, and the engine includes the oil pan assembly in the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the following detailed description of the preferred embodiments, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments, and are not considered to be a limitation of the present utility model. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings:

[0023] Figure 1 is a schematic diagram of the working principle of the oil pan assembly provided in the first embodiment of the present utility model;

[0024] Figure 2 is a schematic structural diagram of the oil pan provided in the first embodiment of the present utility model from one perspective;

[0025] Figure 3 is a schematic structural diagram of the oil pan provided in the first embodiment of the present utility model from another perspective;

[0026] Figure 4 is a schematic structural diagram of the oil pan provided in the first embodiment of the present utility model from yet another perspective;

[0027] Figure 5 is a schematic diagram of the working principle of the oil pan assembly provided in the second embodiment of the present utility model;

[0028] Figure 6 It is a schematic structural diagram of the oil pan provided in the second embodiment of the present utility model from one perspective;

[0029] Figure 7 It is a schematic structural diagram of the oil pan provided in the second embodiment of the present utility model from another perspective;

[0030] Figure 8 It is a schematic structural diagram of the oil pan provided in the second embodiment of the present utility model from yet another perspective.

[0031] In the figure:

[0032] 100, oil pan; 110, inner housing; 120, outer housing; 121, first housing; 1211, first liquid inlet; 1212, first liquid outlet; 122, second housing; 1221, second liquid inlet; 1222, second liquid outlet; 123, third housing; 124, fourth housing; 1201, liquid inlet; 1202, liquid outlet; 130, connecting pipeline;

[0033] 200, liquid inlet pipeline; 210, main liquid inlet path; 211, first liquid inlet branch; 212, second liquid inlet branch;

[0034] 300, liquid outlet pipeline; 310, main liquid outlet path; 311, first liquid outlet branch; 312, second liquid outlet branch;

[0035] 400, heater;

[0036] 500, engine water tank. Detailed implementation manners

[0037] The following will describe the exemplary embodiments of the present disclosure in more detail with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art.

[0038] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprises", "comprising", "includes", and "including" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless explicitly indicated as the order of performance. It should also be understood that additional or alternative steps may be used.

[0039] Although the terms first, second, third, etc. may be used herein to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms when used herein do not imply an order or sequence. Thus, the first element, component, region, layer, or section discussed below may be referred to as the second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0040] For ease of description, spatial relative relation terms may be used herein to describe the relationship of one element or feature shown in the figures to another element or feature, such as "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", etc. Such spatial relative relation terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "beneath" another element or feature will then be oriented "above" or "over" the other element or feature. Thus, the example term "below" can include both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relation descriptors used herein are to be interpreted accordingly.

[0041] See Figure 1, this embodiment provides an oil pan assembly, including an oil pan 100, a liquid inlet pipeline 200, a liquid outlet pipeline 300, and a heater 400; wherein, the oil pan 100 includes an inner housing 110 and an outer housing 120. The inner cavity enclosed by the inner housing 110 is used for storing oil. A circulation cavity for circulating coolant is formed by surrounding the outer walls of the outer housing 120 and the inner housing 110. An inlet 1201 and an outlet 1202 that are respectively communicated with the circulation cavity are arranged on the outer housing 120; the inlet end of the liquid inlet pipeline 200 is used to communicate with the outlet of the engine water tank 500, and the outlet end of the liquid inlet pipeline 200 is communicated with the inlet 1201; the inlet end of the liquid outlet pipeline 300 is communicated with the outlet 1202, and the outlet end of the liquid outlet pipeline 300 is used to communicate with the inlet of the engine water tank 500; the heater 400 is arranged on the liquid inlet pipeline 200.

[0042] By arranging a circulation cavity outside the inner housing 110 of the oil pan 100 and allowing the coolant to circulate in the circulation cavity, heat exchange between the coolant and the oil is realized, thereby cooling or heating the oil. In a low-temperature environment, when the oil temperature is less than the first preset temperature, the heater 400 is started. The coolant enters the liquid inlet pipeline 200 from the engine water tank 500, is heated by the heater 400, and after heating, the coolant enters the circulation cavity through the inlet 1201 and heats the oil in the inner housing 110. After heat exchange, the coolant flows out of the outer housing 120 from the outlet 1202 and returns to the engine water tank 500 through the liquid outlet pipeline 300; in a high-temperature environment, when the oil temperature is greater than the second preset temperature, the heater 400 does not need to be started. The coolant enters the liquid inlet pipeline 200 from the engine water tank 500, enters the circulation cavity through the inlet 1201 and cools the oil in the inner cavity, and the coolant after heat exchange flows out of the outer housing 120 from the outlet 1202 and returns to the engine water tank 500 through the liquid outlet pipeline 300. Using the coolant to realize the heating or cooling of the oil can enable the engine to start normally at low temperatures and avoid bearing or connecting rod scoring caused by oil dilution at high temperatures. Therefore, this oil pan assembly has a wide range of applications, has low requirements for the oil grade, and can obtain good economy.

[0043] When the engine is working normally, the oil temperature is usually higher than the coolant temperature. Therefore, the coolant can be used to cool the oil. It can be understood that the first preset temperature and the second preset temperature are set according to the actual situation, and the oil temperature should be able to ensure the normal start of the engine in a low-temperature environment and avoid too low viscosity in a high-temperature environment.

[0044] Further, a first control valve is arranged on the liquid inlet pipeline 200, and the first control valve is used to control the flow rate of the liquid inlet pipeline 200. During the working process, when the oil temperature is less than the first preset temperature or greater than the second preset temperature, the first control valve is opened. By controlling the on-off of the liquid inlet pipeline 200 through the first control valve, the regulation of the oil temperature is realized.

[0045] Furthermore, a second control valve is provided on the liquid outlet pipeline 300, and the second control valve is used to control the flow rate of the liquid outlet pipeline 300. It can be understood that the second control valve can control the valve body opening according to the temperature or volume of the coolant in the outer housing 120, so as to ensure that the oil liquid is always in a relatively stable temperature range.

[0046] Optionally, the first control valve and the second control valve are solenoid valves, and the control unit gives corresponding instructions according to preset conditions to open or close the solenoid valves. Receiving detection signals by the control unit and outputting corresponding instructions to the solenoid valves are mature prior arts in the field, and will not be elaborated here.

[0047] Embodiment 1

[0048] See Figures 1 to 4 , the outer housing 120 includes a first housing 121 and a second housing 122 that are isolated from each other. The first housing 121 and the second housing 122 are respectively located on both sides of the inner housing 110. The liquid inlet 1201 includes a first liquid inlet 1211 provided on the first housing 121 and a second liquid inlet 1221 provided on the second housing 122. The liquid outlet 1202 includes a first liquid outlet 1212 provided on the first housing 121 and a second liquid outlet 1222 provided on the second housing 122. By respectively arranging the first housing 121 and the second housing 122 on both sides of the inner housing 110, the heat exchange area between the coolant and the oil liquid is increased, achieving the purpose of rapid heat exchange. Preferably, the first housing 121 and the second housing 122 are symmetrically arranged. When the coolant needs to flow in the pipeline, the coolant flows equally to the first housing 121 and the second housing 122, so as to ensure the temperature balance on both sides of the inner housing 110. Optionally, the liquid outlet 1202 is provided at the bottom of the outer housing 120, which is beneficial to the circulation of the coolant. When the liquid level of the coolant in the outer housing 120 is relatively low, the coolant can still flow out from the liquid outlet 1202. In this embodiment, the liquid inlet 1201 is provided at the top of the outer housing 120. In some other embodiments, the liquid inlet 1201 can also be provided on the side or bottom of the outer housing 120.

[0049] Further, the liquid inlet pipeline 200 includes a main liquid inlet path 210, a first liquid inlet branch 211, and a second liquid inlet branch 212. The inlet end of the main liquid inlet path 210 is communicated with the outlet of the engine water tank 500. The inlet ends of the first liquid inlet branch 211 and the second liquid inlet branch 212 are respectively communicated with the outlet end of the main liquid inlet path 210. The outlet end of the first liquid inlet branch 211 is communicated with the first liquid inlet 1211, and the outlet end of the second liquid inlet branch 212 is communicated with the second liquid inlet 1221. The heater 400 is arranged on the main liquid inlet path 210. During the process of the outer housing 120 admitting liquid, the coolant is divided into two paths from the engine water tank 500 through the main liquid inlet path 210. One path flows into the first housing 121 through the first liquid inlet branch 211 and the first liquid inlet 1211, and the other path flows into the second housing 122 through the second liquid inlet branch 212 and the second liquid inlet 1221. It can be understood that by arranging the heater 400 on the main liquid inlet path 210, in the case of low temperature, the coolant can be heated first and then flow to the first housing 121 and the second housing 122 respectively. When the coolant needs to be heated, the heater 400 is in the working state, and when the coolant does not need to be heated, the heater 400 is in the shutdown state.

[0050] Further, the liquid outlet pipeline 300 includes a main liquid outlet path 310, a first liquid outlet branch 311, and a second liquid outlet branch 312. The inlet end of the first liquid outlet branch 311 is communicated with the first liquid outlet 1212, and the inlet end of the second liquid outlet branch 312 is communicated with the second liquid outlet 1222. The outlet ends of the first liquid outlet branch 311 and the second liquid outlet branch 312 are respectively communicated with the inlet end of the main liquid outlet path 310. The outlet end of the main liquid outlet path 310 is communicated with the inlet of the engine water tank 500. During the process of the outer housing 120 discharging liquid, the coolant in the first housing 121 flows to the main liquid outlet path 310 through the first liquid outlet 1212 and the first liquid outlet branch 311, and the coolant in the second housing 122 flows to the main liquid outlet path 310 through the second liquid outlet 1222 and the second liquid outlet branch 312. The coolant flows back to the engine water tank 500 through the main liquid outlet path 310.

[0051] Embodiment 2

[0052] See Figures 5 to 8, the outer housing 120 includes a third housing 123 and a fourth housing 124. The third housing 123 and the fourth housing 124 are respectively located on both sides of the inner housing 110. The third housing 123 and the fourth housing 124 are connected through a connecting pipeline 130. A liquid inlet 1201 is provided on the third housing 123, and a liquid outlet 1202 is provided on the fourth housing 124. The coolant can enter the third housing 123 from the liquid inlet 1201, pass through the connecting pipeline 130 into the fourth housing 124, and then flow out from the liquid outlet 1202. By connecting the third housing 123 and the second housing 122, the structures of the liquid inlet pipeline 200 and the liquid outlet pipeline 300 can be simplified.

[0053] Furthermore, in this embodiment, the connecting pipeline 130 is located in the inner cavity of the inner housing 110. By arranging the connecting pipeline 130 in the inner cavity of the inner housing 110, when the coolant flows through the connecting pipeline 130, it can exchange heat with the oil in the inner housing 110. During cold start, the heating ability of the coolant to the oil can be improved; during stable operation, the cooling ability of the coolant to the oil can be improved. Optionally, the connecting pipeline 130 can be arranged at the middle position in the height direction of the inner housing 110, so as to fully contact with the oil. In other embodiments, the connecting pipeline 130 can also be located outside the inner housing 110, for example, at the bottom or top of the inner housing 110.

[0054] Furthermore, to improve the heat exchange efficiency, multiple connecting pipelines 130 are provided, and the multiple connecting pipelines 130 are arranged at intervals. Exemplarily, the number of the connecting pipelines 130 can be two, three, four, five, etc. In this embodiment, the connecting pipeline 130 is a straight pipe. To increase the heat exchange efficiency, the connecting pipeline 130 can also be an S-shaped or arc-shaped elbow pipe.

[0055] Embodiment Three

[0056] This embodiment provides an engine, including the oil pan assembly provided in Embodiment One or Embodiment Two. On the one hand, during the cold start preheating stage, the engine can provide heat for the oil in the oil pan 100 by circulating and heating the coolant, achieving the effect of quickly increasing the oil temperature; on the other hand, the engine can reduce the oil temperature through the coolant, avoiding the oil temperature being too high, thereby avoiding the phenomenon of bearing shell scraping caused by diluted oil. Through the heat exchange between the coolant and the oil, the temperatures of the two are brought closer, so that the oil is in a relatively stable temperature range, thereby reducing the usage requirements of the engine for the oil and having high product adaptability.

[0057] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included in the protection scope of the claims of the present utility model.

Claims

1. An oil pan assembly, characterized in that, Comprising: An oil pan (100), the oil pan (100) includes an inner housing (110) and an outer housing (120), the inner cavity surrounded by the inner housing (110) is used for storing oil, and a circulation cavity for circulating coolant is formed by surrounding the outer wall of the outer housing (120) and the inner housing (110), and a liquid inlet (1201) and a liquid outlet (1202) respectively communicated with the circulation cavity are arranged on the outer housing (120); An inlet pipeline (200), the inlet end of the inlet pipeline (200) is used to communicate with the outlet of the engine water tank (500), and the outlet end of the inlet pipeline (200) is communicated with the liquid inlet (1201); An outlet pipeline (300), the inlet end of the outlet pipeline (300) is communicated with the liquid outlet (1202), and the outlet end of the outlet pipeline (300) is used to communicate with the inlet of the engine water tank (500); A heater (400), the heater (400) is arranged on the inlet pipeline (200).

2. The oil pan assembly according to claim 1, characterized in that, The outer housing (120) includes a first housing (121) and a second housing (122) which are isolated from each other, the first housing (121) and the second housing (122) are respectively located on both sides of the inner housing (110), the liquid inlet (1201) includes a first liquid inlet (1211) arranged on the first housing (121) and a second liquid inlet (1221) arranged on the second housing (122), and the liquid outlet (1202) includes a first liquid outlet (1212) arranged on the first housing (121) and a second liquid outlet (1222) arranged on the second housing (122).

3. The oil pan assembly according to claim 2, wherein The inlet pipeline (200) includes an inlet main path (210), a first inlet branch (211) and a second inlet branch (212), the inlet end of the inlet main path (210) is communicated with the outlet of the engine water tank (500), the inlet ends of the first inlet branch (211) and the second inlet branch (212) are respectively communicated with the outlet end of the inlet main path (210), the outlet end of the first inlet branch (211) is communicated with the first liquid inlet (1211), the outlet end of the second inlet branch (212) is communicated with the second liquid inlet (1221), and the heater (400) is arranged on the inlet main path (210).

4. The oil pan assembly according to claim 2 or 3, characterized in that, The outlet pipeline (300) includes an outlet main path (310), a first outlet branch (311) and a second outlet branch (312), the inlet end of the first outlet branch (311) is communicated with the first liquid outlet (1212), the inlet end of the second outlet branch (312) is communicated with the second liquid outlet (1222), the outlet ends of the first outlet branch (311) and the second outlet branch (312) are respectively communicated with the inlet end of the outlet main path (310), and the outlet end of the outlet main path (310) is communicated with the inlet of the engine water tank (500).

5. The oil pan assembly according to claim 1, characterized in that, The outer housing (120) includes a third housing (123) and a fourth housing (124). The third housing (123) and the fourth housing (124) are respectively located on both sides of the inner housing (110). The third housing (123) and the fourth housing (124) are communicated through a connecting pipeline (130). The liquid inlet (1201) is arranged on the third housing (123), and the liquid outlet (1202) is arranged on the fourth housing (124). The coolant can enter the third housing (123) from the liquid inlet (1201), pass through the connecting pipeline (130) to enter the fourth housing (124), and then flow out from the liquid outlet (1202).

6. The oil pan assembly according to claim 5, wherein, The connecting pipeline (130) is located in the inner cavity of the inner housing (110).

7. The oil pan assembly according to claim 5 or 6, characterized in that, A plurality of connecting pipelines (130) are provided, and the plurality of connecting pipelines (130) are arranged at intervals.

8. The oil pan assembly according to claim 1, characterized in that, A first control valve is arranged on the liquid inlet pipeline (200), and the first control valve is used to control the flow rate of the liquid inlet pipeline (200).

9. The oil pan assembly according to claim 1, characterized in that, A second control valve is arranged on the liquid outlet pipeline (300), and the second control valve is used to control the flow rate of the liquid outlet pipeline (300).

10. An engine, characterized in that, It includes an oil pan assembly according to any one of claims 1-9.

Images