Engine crankcase oil contaminant isolation structure

Abstract

The utility model discloses an engine crankcase machine oil impurity isolation structure, including crankcase and flow guide partition, the crankcase is provided with oil pump oil suction chamber, oil inner chamber and oil outer chamber, the flow guide partition sets up in the crankcase, and the flow guide partition is located between oil inner chamber and oil outer chamber, the crankcase includes rear wall part 16, the flow guide partition is used for blocking impurity, and includes the enclosure and the partition, the upper end of the enclosure is set up on the crankcase, the partition is set up between the lower end of enclosure and rear wall part 16, the partition is located above the cavity bottom wall of oil outer chamber, the partition is provided with the oil inlet of being communicated between oil inner chamber and oil outer chamber, the oil pump oil suction chamber penetrates the enclosure, and is communicated with oil inner chamber, the utility model discloses can utilize flow guide partition and separate the impurity in oil, to reduce the impurity and be brought into lubricating system by oil pump, and, simple structure can be applicable to scale production.

Description

Technical Field

[0001] This utility model relates to the field of engine crankcases, specifically to an engine crankcase oil impurity isolation structure. Background Technology

[0002] The engine is the core power source of a vehicle, often referred to as its "heart." It provides the necessary power for the vehicle to move and plays a crucial role in the vehicle's operation.

[0003] After prolonged use, impurities will accumulate inside the engine due to wear and other reasons. Some of these impurities will settle in the engine crankcase along with the oil. When the oil is agitated or shaken, these impurities may enter the oil pump suction chamber along with the oil and then enter the lubrication system, affecting the engine's lifespan. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide an engine crankcase oil impurity isolation structure, which can use a flow guide partition to separate impurities, thereby reducing the probability of impurities entering the oil pump suction chamber.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An engine crankcase oil impurity isolation structure includes a crankcase and a flow guide partition. The crankcase has an oil pump suction chamber, an inner oil chamber, and an outer oil chamber. The flow guide partition is disposed within the crankcase and is located between the inner and outer oil chambers. The crankcase includes a rear wall portion. The flow guide partition is used to block impurities and includes a retaining wall and a partition. The upper end of the retaining wall is disposed on the crankcase, and the partition is disposed between the lower end of the retaining wall and the rear wall portion. The partition is located above the bottom wall of the outer oil chamber and has an oil inlet communicating between the inner and outer oil chambers. The oil pump suction chamber penetrates the retaining wall and communicates with the inner oil chamber.

[0007] The partition includes a left partition and a right partition; the right partition is located to the right of the left partition; the enclosure includes a left barrier and a right barrier; the right barrier is located to the right of the left barrier.

[0008] The left baffle includes a left first connecting wall, a left second connecting wall, and a left third connecting wall; the left second connecting wall is disposed between the left first connecting wall and the left third connecting wall; the left partition is disposed between the left third connecting wall and the rear wall.

[0009] From the end of the left-side second connecting wall near the left-side first connecting wall to the end near the left-side third connecting wall, the left-side second connecting wall gradually bends and extends toward the rear wall.

[0010] The right-side baffle includes a right-side first connecting wall, a right-side second connecting wall, and a right-side third connecting wall; the right-side second connecting wall is disposed between the right-side first connecting wall and the right-side third connecting wall; the right partition is disposed between the right-side third connecting wall and the rear wall.

[0011] From the end of the right-side second connecting wall near the right-side first connecting wall to the end near the right-side third connecting wall, the right-side second connecting wall gradually bends and extends toward the rear wall.

[0012] The right-side first connecting wall is located above the right-side third connecting wall; the oil pump suction chamber penetrates the right-side first connecting wall.

[0013] The right and left partitions form the oil inlet.

[0014] The crankcase includes a mating left housing and a right housing, the left partition and the left baffle are integrally formed on the left housing, and the right partition and the right baffle are integrally formed on the right housing.

[0015] An impurity sedimentation zone is formed between the partition and the bottom wall of the oil cavity.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This utility model provides an engine crankcase oil impurity isolation structure. Based on the crankcase and guide partition, the guide partition combines a barrier and a baffle to separate impurities in the oil, thereby reducing the probability of impurities entering the oil pump suction chamber. This reduces the amount of impurities carried into the lubrication system by the oil pump, reduces engine wear, and extends engine service life. Moreover, its structure is simple, easy to manufacture, and suitable for mass production. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the engine crankcase oil impurity isolation structure of this utility model.

[0019] Figure 2 This is a cross-sectional schematic diagram of the engine crankcase oil impurity isolation structure of this utility model.

[0020] Figure 3 This is an exploded view of the engine crankcase oil impurity isolation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the engine crankcase oil impurity isolation structure of this utility model from another perspective;

[0022] Figure 5 This is a schematic diagram of the right shell structure;

[0023] Among them, 10 is the crankcase; 11 is the oil pump suction chamber; 12 is the inner oil chamber; 13 is the outer oil chamber; 14 is the left housing; 15 is the right housing; 16 is the rear wall; 20 is the guide partition; 21 is the enclosure; 22 is the partition; 221 is the left partition; 222 is the right partition; 23 is the oil inlet; 25 is the impurity sedimentation area; 30 is the left baffle; 31 is the left first connecting wall; 32 is the left second connecting wall; 33 is the left third connecting wall; 40 is the right baffle; 41 is the right first connecting wall; 42 is the right second connecting wall; 43 is the right third connecting wall. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] like Figure 1-5 As shown, an engine crankcase oil impurity isolation structure includes a crankcase 10 and a flow guide partition 20. The crankcase 10 is provided with an oil pump suction chamber 11, an inner oil chamber 12, and an outer oil chamber 13. The flow guide partition 20 is disposed inside the crankcase 10 and is located between the inner oil chamber 12 and the outer oil chamber 13. The crankcase 10 includes a rear wall portion 16. The flow guide partition 20 is used to block impurities and includes a retaining wall 21 and a partition 22. The upper end of the retaining wall 21 is disposed on the crankcase 10, and the partition 22 is disposed between the lower end of the retaining wall 21 and the rear wall portion 16. The partition 22 is located above the bottom wall of the outer oil chamber 13, and the partition 22 is provided with an oil inlet 23 communicating between the inner oil chamber 12 and the outer oil chamber 13. The oil pump suction chamber 11 penetrates the retaining wall 21 and communicates with the inner oil chamber 12.

[0026] During use, engine oil flows from the outer oil chamber 13 into the inner oil chamber 12 through the oil inlet 23. During this process, most impurities in the oil are trapped in the outer oil chamber 13 by the flow guide partition 20 and settle at the bottom. The oil, having passed through the flow guide partition 20 and blocked by impurities, enters the inner oil chamber 12 through the oil inlet 23 and then flows into the oil pump suction chamber 11. This allows the oil pump to draw in cleaner oil within the suction chamber 11. Therefore, this invention provides an engine crankcase... The oil impurity isolation structure, based on the crankcase 10 and the flow guide partition 20, combines the flow guide partition 20 with the enclosure 21 and the partition 22. As the oil enters the oil inner cavity 12 from the outer oil cavity 13 through the oil inlet 23, the flow guide partition 20 separates the impurities in the oil, thereby reducing the probability of impurities entering the oil pump suction cavity 11. This reduces the amount of impurities carried into the lubrication system by the oil pump, reduces engine wear, and extends the engine's service life. Moreover, its structure is simple, easy to manufacture, and suitable for mass production.

[0027] The partition 22 includes a left partition 221 and a right partition 222; the right partition 222 is located to the right of the left partition 221. The enclosure 21 includes a left baffle 30 and a right baffle 40; the right baffle 40 is located to the right of the left baffle 30. Specifically, the crankcase 10 includes a mating left housing 14 and a right housing 15, the left partition 221 and the left baffle 30 are integrally formed on the left housing 14, and the right partition 222 and the right baffle 40 are integrally formed on the right housing 15. By adopting the above structure, processing and manufacturing can be facilitated, and manufacturing costs can be reduced.

[0028] The left baffle 30 includes a left-positioned first connecting wall 31, a left-positioned second connecting wall 32, and a left-positioned third connecting wall 33. The left-positioned second connecting wall 32 is disposed between the left-positioned first connecting wall 31 and the left-positioned third connecting wall 33. The left partition 221 is disposed between the left-positioned third connecting wall 33 and the rear wall portion 16. From the end of the left-positioned second connecting wall 32 near the left-positioned first connecting wall 31 to the end near the left-positioned third connecting wall 33, the left-positioned second connecting wall 32 gradually bends and extends towards the rear wall portion 16. By adopting the above structure, the oil entering the oil cavity 12 can flow along the left-positioned third connecting wall 33, the left-positioned second connecting wall 32, and the left-positioned first connecting wall 31. The left baffle 30 can guide the flow of oil and reduce the flow resistance of oil.

[0029] In this embodiment, the extension trajectories of the left-positioned first connecting wall 31 and the left-positioned third connecting wall 33 can be set as straight lines. The left-positioned first connecting wall 31 and the left-positioned second connecting wall 32 are smoothly transitioned by an arc, and the left-positioned second connecting wall 32 and the left-positioned third connecting wall 33 are also smoothly transitioned by an arc, in order to further reduce oil flow resistance and eddy current generation. Specifically, the left-positioned first connecting wall 31 is located above the left-positioned third connecting wall 33.

[0030] The right baffle 40 includes a right-positioned first connecting wall 41, a right-positioned second connecting wall 42, and a right-positioned third connecting wall 43. The right-positioned second connecting wall 42 is disposed between the right-positioned first connecting wall 41 and the right-positioned third connecting wall 43. The right partition 222 is disposed between the right-positioned third connecting wall 43 and the rear wall portion 16. From the end of the right-positioned second connecting wall 42 near the right-positioned first connecting wall 41 to the end near the right-positioned third connecting wall 43, the right-positioned second connecting wall 42 gradually bends and extends towards the rear wall portion 16. By adopting the above structure, the oil entering the oil cavity 12 can flow along the right-positioned third connecting wall 43, the right-positioned second connecting wall 42, and the right-positioned first connecting wall 41. The right baffle 40 can guide the flow of oil and reduce the flow resistance of oil.

[0031] In this embodiment, the extension trajectories of the right-positioned first connecting wall 41 and the right-positioned third connecting wall 43 can be set as straight lines. The right-positioned first connecting wall 41 and the right-positioned second connecting wall 42 are smoothly transitioned by an arc, and the right-positioned second connecting wall 42 and the right-positioned third connecting wall 43 are smoothly transitioned by an arc, so as to further reduce the oil flow resistance and eddy current generation.

[0032] The extension trajectory of the right baffle 40 is consistent with the extension trajectory of the left baffle 30, and the extension trajectory of the right partition 222 is consistent with the extension trajectory of the left partition 221.

[0033] Specifically, the oil pump suction chamber 11 penetrates the right-side first connecting wall 41. The right-side first connecting wall 41 is located above the right-side third connecting wall 43. By positioning the right-side first connecting wall 41 above the right-side third connecting wall 43, and with the oil pump suction chamber 11 penetrating through the right-side first connecting wall 41, the penetration opening of the oil pump suction chamber 11 through the right-side first connecting wall 41 is positioned at a high level. During use, when the engine oil flows from the outer oil chamber 13 into the inner oil chamber 12 through the oil inlet 23, most of the impurities in the engine oil will be trapped in the outer oil chamber 13 due to the action of the guide partition 20. The engine oil with a small amount of impurities enters the inner oil chamber 12 and then flows along the inner oil chamber 12 toward the oil pump suction chamber 11. During this process, some impurities in the engine oil accumulate and sink under the action of gravity, further reducing the probability of impurities entering the oil pump suction chamber 11 and further improving the cleanliness of the engine oil entering the oil pump suction chamber 11.

[0034] The right partition 222 and the left partition 221 form the oil inlet 23 to facilitate its formation. In this embodiment, both the right partition 222 and the left partition 221 are provided with semi-circular grooves, and the semi-circular groove wall of the right partition 222 and the semi-circular groove wall of the left partition 221 form the oil inlet 23 to facilitate processing.

[0035] The oil inlet 23 is located in the middle of the partition 22; an impurity sedimentation zone 25 is formed between the partition 22 and the bottom wall of the oil outer cavity 13, so that the impurities blocked by the enclosure 21 are sedimented in the impurity sedimentation zone 25.

[0036] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An engine crankcase oil impurity isolation structure, characterized in that: The crankcase (10) includes a crankcase (10) and a flow guide partition (20); the crankcase (10) is provided with an oil pump suction chamber (11), an inner oil chamber (12) and an outer oil chamber (13); the flow guide partition (20) is disposed inside the crankcase (10) and is located between the inner oil chamber (12) and the outer oil chamber (13); the crankcase (10) includes a rear wall (16), and the flow guide partition (20) is used to block impurities and includes a retaining wall (21) and a partition. (22); The upper end of the enclosure (21) is set on the crankcase (10), and the partition (22) is set between the lower end of the enclosure (21) and the rear wall (16); The partition (22) is located above the bottom wall of the outer oil cavity (13), and the partition (22) is provided with an oil inlet (23) connecting the inner oil cavity (12) and the outer oil cavity (13). The oil pump suction chamber (11) penetrates the enclosure (21) and communicates with the inner oil cavity (12).

2. The engine crankcase oil impurity isolation structure as described in claim 1, characterized in that: The partition (22) includes a left partition (221) and a right partition (222); the right partition (222) is located to the right of the left partition (221); the enclosure (21) includes a left barrier (30) and a right barrier (40); the right barrier (40) is located to the right of the left barrier (30).

3. The engine crankcase oil impurity isolation structure as described in claim 2, characterized in that: The left baffle (30) includes a left first connecting wall (31), a left second connecting wall (32) and a left third connecting wall (33); the left second connecting wall (32) is disposed between the left first connecting wall (31) and the left third connecting wall (33); the left partition (221) is disposed between the left third connecting wall (33) and the rear wall (16).

4. The engine crankcase oil impurity isolation structure as described in claim 3, characterized in that: From the end of the left second connecting wall (32) near the left first connecting wall (31) to the end near the left third connecting wall (33), the left second connecting wall (32) gradually bends and extends toward the rear wall (16).

5. The engine crankcase oil impurity isolation structure as described in claim 2, characterized in that: The right stop (40) includes a right-positioned first connecting wall (41), a right-positioned second connecting wall (42), and a right-positioned third connecting wall (43); the right-positioned second connecting wall (42) is disposed between the right-positioned first connecting wall (41) and the right-positioned third connecting wall (43); the right partition (222) is disposed between the right-positioned third connecting wall (43) and the rear wall (16).

6. The engine crankcase oil impurity isolation structure as described in claim 5, characterized in that: From one end of the right-side second connecting wall (42) near the right-side first connecting wall (41) to one end near the right-side third connecting wall (43), the right-side second connecting wall (42) gradually bends and extends toward the rear wall portion (16).

7. The engine crankcase oil impurity isolation structure as described in claim 6, characterized in that: The right-side first connecting wall (41) is located above the right-side third connecting wall (43); the oil pump suction chamber (11) passes through the right-side first connecting wall (41).

8. The engine crankcase oil impurity isolation structure as described in claim 2, characterized in that: The right partition (222) and the left partition (221) form the oil inlet (23).

9. The engine crankcase oil impurity isolation structure as described in claim 2, characterized in that: The crankcase (10) includes a mating left housing (14) and a right housing (15), the left partition (221) and the left baffle (30) are integrally formed on the left housing (14), and the right partition (222) and the right baffle (40) are integrally formed on the right housing (15).

10. The engine crankcase oil impurity isolation structure as described in claim 1, characterized in that: An impurity sedimentation zone (25) is formed between the partition (22) and the bottom wall of the oil outer cavity (13).

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