A double-layer oil sump

Abstract

The utility model discloses a double -deck oil sump, including inner shell and shell, the front and rear two ends of shell are equipped with the import and export of intercommunication the containing cavity, be equipped with containing cavity between inner shell and shell, it is characterized by: the both sides of containing cavity still are equipped with the baffle of symmetrical setting respectively, the both sides of baffle are connected the outside of inner shell and the inside of shell respectively, the lower extreme of baffle is located the bottom surface of inner shell, and the upper end is located the upper end surface of inner shell below. The utility model has compact structure, can preheat the oil in oil sump and so on.

Description

Technical Field

[0001] This utility model relates to the field of oil pan technology, and in particular to a double-layer oil pan. Background Technology

[0002] The engine lubrication system is a crucial system for ensuring the normal operation of the engine. Its main function is to continuously deliver clean engine oil to the friction surfaces of various engine parts, reducing friction and wear, while also providing cooling, cleaning, sealing, and cushioning.

[0003] Existing patent document CN2644681Y discloses a double-layer oil pan for an internal combustion engine, which fully absorbs and removes heat from the engine oil through cooling water, thereby effectively reducing the noise and oil temperature during engine operation.

[0004] The above background information is provided only to aid in understanding the concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0005] The main purpose of this utility model is to propose a compact double-layer oil pan that can preheat the oil in the oil pan.

[0006] Therefore, this utility model proposes a double-layer oil pan.

[0007] Preferably, the present invention may also have the following technical features:

[0008] A double-layer oil pan includes an inner shell and an outer shell, with a cavity between the inner shell and the outer shell. The front and rear ends of the outer shell are respectively provided with an inlet and an outlet communicating with the cavity. Symmetrically arranged baffles are also provided on both sides of the cavity. The two sides of the baffles are respectively connected to the outer side of the inner shell and the inner side of the outer shell. The lower end of the baffle is located above the bottom surface of the inner shell, and the upper end is located below the upper surface of the inner shell.

[0009] Furthermore, the baffle is inclined, with its lower end close to the inlet side and its upper end extending obliquely towards the outlet side.

[0010] Furthermore, the inner shell has stepped surfaces at both the front and rear ends, and at least one vertically placed partition in the middle.

[0011] Furthermore, the outer sides of the front and rear ends of the inner shell are respectively provided with concave surfaces, and the concave surfaces form a first step surface and a second step surface inside the inner shell.

[0012] Furthermore, the inlet is located on the outer shell corresponding to the concave surface at the front end of the inner shell; a vertical clamping cavity is formed between the rear end of the outer shell and the rear end of the inner shell, and the outlet communicates with the clamping cavity.

[0013] Furthermore, the partition has an n-shaped structure, with its two sides and lower end abutting against the two sides and bottom surface of the inner shell, respectively, and an oil passage hole is provided at its lower part.

[0014] Furthermore, the partition is welded to the side wall of the inner shell.

[0015] Furthermore, the partition is detachably mounted on the inner shell sidewall.

[0016] Furthermore, the inner shell has a mounting block on its side wall, and the mounting block has a vertically arranged mounting groove that matches the thickness of the partition, and the partition is engaged in the mounting groove.

[0017] Furthermore, it also includes a parking heater system, a preheating circulation pipeline, a second circulation pipeline, and a third circulation pipeline. The engine includes a cylinder block water jacket and a cylinder head water jacket. The parking heater system includes a heat exchanger, a water tank, a first water pump, and a parking heater. The water tank, the first water pump, the parking heater, and the heat exchanger are connected in series to form a circulating water circuit. The preheating circulation pipeline includes an engine water jacket, a second water pump, and a heat exchanger connected in series. One end of the second circulation pipeline is connected to the inlet of the oil pan cavity, and the other end draws water from the front of the engine water jacket. One end of the third circulation pipeline is connected to the outlet of the oil pan cavity, and the other end returns water to the rear of the engine water jacket.

[0018] The beneficial effects of this utility model compared with the prior art include: the baffle separates the middle of the side of the cavity and forms channels at the upper and lower ends of the cavity, so that the medium entering the cavity can pass through the channels formed at the upper and lower ends of the baffle, which is conducive to strengthening the contact between the medium and the inner shell of the oil pan for heat exchange. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the present invention.

[0020] Figure 2 This is a schematic diagram of the baffle arrangement of this utility model.

[0021] Figure 3 This is the front view of this utility model.

[0022] Figure 4 This is a top view of the present invention.

[0023] Figure 5 This is a perspective view of the present invention.

[0024] Figure 6This is a schematic diagram of the heat exchange process of this utility model. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to specific embodiments and the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.

[0026] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein the same reference numerals denote the same parts unless otherwise specifically stated.

[0027] like Figures 1-4 The diagram illustrates a double-layered oil sump, comprising an inner shell 2 and an outer shell 1, with a cavity 8 between them. The outer shell 1 has an inlet 4 and an outlet 3 at its front and rear ends, respectively, connecting to the cavity 8. The inlet 4 is installed at a lower height than the outlet 3. Symmetrically arranged baffles 7 are also provided on both sides of the cavity 8, connecting the outer side of the inner shell 2 and the inner side of the outer shell 1. The lower end of the baffle 7 is above the bottom surface of the inner shell 2, and the upper end is below the upper surface of the inner shell 2. The baffles 7 separate the middle of the sides of the cavity 8, forming channels at the upper and lower ends of the cavity 8. This allows the medium entering the cavity 8 to pass through these channels, enhancing heat exchange between the medium and the inner shell 2 of the oil sump.

[0028] Preferably, the baffle 7 is inclined, with its lower end close to the inlet side and its upper end extending obliquely towards the outlet 3 side. Generally, in cold northern weather, the parking heating system equipped in the vehicle is used to heat the parking circulation water circuit. Then, the high-temperature water in the parking circulation circuit exchanges heat with the low-temperature coolant in the engine cooling circulation system through the heat exchanger 11, causing the temperature of the engine cooling circulation system to rise rapidly, thereby increasing the temperature of the engine cylinder block and cylinder head, and shortening the vehicle's starting time in cold weather. For example, in the prior art, the engine water jacket (cylinder block water jacket and cylinder head water jacket), the second water pump 15, and the heat exchanger 11 are usually connected in series to form a preheating circulation pipeline. During operation, the parking circulation water circuit and the preheating circulation pipeline exchange heat through the heat exchanger 11, thereby heating the engine (cylinder block and cylinder head) to a certain temperature before starting the engine.

[0029] Combination Figure 6The parking heater system includes a heat exchanger 11, a water tank 12, a first water pump 13, and a parking heater 14. The heat exchange in this parking heater system is existing technology, such as the air-water integrated parking heater heat exchange method disclosed in patent document CN118372613A. The water tank 12, the first water pump 13, the parking heater 14, and the heat exchanger 11 are connected in series to form a circulating water circuit. It also includes a second circulating pipe 17 and a third circulating pipe 18. The rear end of the second circulating pipe 17 is connected to the inlet 4 of the cavity 8 of the oil pan 16, and the front end is connected to the engine water jacket to draw water, that is, to introduce part of the coolant from the cooling circulation system after heat exchange into the cavity 8 of the oil pan 16. Drawing water in front of the engine results in a higher coolant temperature, improving the heating efficiency of the oil pan. The rear end of the third circulating pipe 18 is connected to the outlet 3 of the cavity 8 of the oil pan, and the front end returns water to the engine water jacket. Preferably, the third circulating pipe 18 returns water to the pipeline connecting the engine and the second water pump 15. By adding hot coolant to the cavity 8 of the oil pan 16 to heat the oil in the oil pan, the oil temperature can be raised rapidly, which can greatly improve the cold start condition.

[0030] Preferably, the inner shell 2 has stepped surfaces at both its front and rear ends, and at least one vertically placed partition 5 in the middle. The outer sides of the front and rear ends of the inner shell 2 have concave surfaces (23, 24), which form a first stepped surface 21 and a second stepped surface 22 inside the inner shell 2, resulting in a structure where the inner cavity of the inner shell 2 is smaller at the bottom and larger at the top. The inlet 4 is located on the outer shell 1 corresponding to the concave surface 23 at the front end of the inner shell 2, ensuring that the medium entering the cavity 8 from the inlet 4 is not obstructed, thus increasing throughput. A vertical clamping cavity 81 is formed between the rear end of the outer shell 1 and the rear end of the inner shell 2. The clamping cavity 81 is part of the cavity 8, and the outlet 3 connects to the clamping cavity 81.

[0031] The partition 5 has an n-shaped structure, with its two sides and lower end abutting against the two sides and bottom surface of the inner shell 2, respectively, and an oil passage hole 51 is provided at its lower part. Preferably, there are two partitions 5, including a first partition and a second partition, which divide the inner shell 2 into three regions.

[0032] In one installation example, the partition 5 is welded to the side wall of the inner shell 2. In this way, the engine oil at the bottom of the inner shell 2 flows through the oil passage 51.

[0033] Combination Figure 1 and 5In another installation example of the partition 5, the partition 5 is detachably mounted on the side wall of the inner shell 2. For example, the side wall of the inner shell 2 is provided with a mounting block 6, which has a vertically arranged mounting groove that matches the thickness of the partition 5, and the partition 5 is snapped into the mounting groove. Preferably, the partition 5 and the mounting groove are interference-fitted.

[0034] To facilitate the drainage of engine oil from the oil pan 16, an oil drain valve is provided at the bottom of the inner shell 2, with its opening extending beyond the outer side of the outer shell 1. When the oil drain valve is opened, the engine oil in the inner shell 2 is drained from it. The top of the inner shell 2 is also provided with several reinforcing ribs 9, with both ends of each rib connected to both sides of the inner shell 2.

[0035] Those skilled in the art will recognize that numerous variations are possible with respect to the above description, and the embodiments and figures are merely for describing one or more specific implementations.

[0036] Although exemplary embodiments of the present invention have been described and illustrated, those skilled in the art will understand that various changes and substitutions can be made thereto without departing from the spirit of the present invention. Furthermore, many modifications can be made to adapt specific situations to the doctrine of the present invention without departing from the central concept of the present invention described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but may include all embodiments and equivalents that fall within the scope of the present invention.

Claims

1. A double-layered oil sump, comprising an inner shell and an outer shell, wherein a receiving cavity is provided between the inner shell and the outer shell, and the front and rear ends of the outer shell are respectively provided with an inlet and an outlet communicating with the receiving cavity, characterized in that: The cavity is provided with symmetrically arranged baffles on both sides. The two sides of the baffles are respectively connected to the outer side of the inner shell and the inner side of the outer shell. The lower end of the baffle is located above the bottom surface of the inner shell, and the upper end is located below the upper surface of the inner shell.

2. The double-layer oil pan as described in claim 1, characterized in that: The baffle is inclined, with its lower end close to the inlet side and its upper end extending obliquely towards the outlet side.

3. The double-layer oil pan as described in claim 1, characterized in that: The inner shell has stepped surfaces at both the front and rear ends, and at least one vertically placed partition in the middle.

4. The double-layer oil pan as described in claim 3, characterized in that: The outer sides of the front and rear ends of the inner shell are respectively provided with concave surfaces, and the concave surfaces form a first step surface and a second step surface inside the inner shell.

5. The double-layer oil pan as described in claim 4, characterized in that: The inlet is located on the outer shell corresponding to the concave surface at the front end of the inner shell; a vertical clamping cavity is formed between the rear end of the outer shell and the rear end of the inner shell, and the outlet communicates with the clamping cavity.

6. The double-layer oil pan as described in claim 3, characterized in that: The partition has an n-shaped structure, with its two sides and lower end abutting against the two sides and bottom surface of the inner shell, respectively, and an oil passage hole is provided at its lower part.

7. The double-layer oil pan as described in claim 6, characterized in that: The partition is welded to the side wall of the inner shell.

8. The double-layer oil pan as described in claim 6, characterized in that: The partition is detachably mounted on the inner shell sidewall.

9. The double-layer oil pan as described in claim 8, characterized in that: The inner shell has a mounting block on its side wall. The mounting block has a vertically arranged mounting groove that matches the thickness of the partition. The partition is snapped into the mounting groove.

10. The double-layer oil pan as described in claim 1, characterized in that: It also includes a parking heater system, a preheating circulation pipeline, a second circulation pipeline, and a third circulation pipeline. The engine includes a cylinder block water jacket and a cylinder head water jacket. The parking heater system includes a heat exchanger, a water tank, a first water pump, and a parking heater. The water tank, the first water pump, the parking heater, and the heat exchanger are connected in series to form a circulating water circuit. The preheating circulation pipeline includes an engine water jacket, a second water pump, and a heat exchanger connected in series. One end of the second circulation pipeline is connected to the inlet of the oil pan cavity, and the other end draws water from the front of the engine water jacket. One end of the third circulation pipeline is connected to the outlet of the oil pan cavity, and the other end returns water to the rear of the engine water jacket.

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