Diesel engine oil pan engine oil supply device and method

Abstract

The invention relates to a diesel engine oil pan engine oil supply device and method, and relates to the technical field of diesel engines, the device comprises a filter element rotationally arranged in an oil pool body at one end of the bottom of an oil pan, a first driving mechanism is arranged above the filter element, and the first driving mechanism is used for driving the filter element to rotate through rotation of a crankshaft in an upper crankcase; purifying the engine oil through centrifugal separation; the device further comprises an oil supply pipe, one end of the oil supply pipe extends to the position below the filter element, the other end of the oil supply pipe extends to the crankshaft, and an oil supply pump used for conveying purified engine oil into the lubricating system is arranged on the oil supply pipe. The device further comprises a particle storage ring sleeving the upper part of the filter element. According to the oil supply device, the functions of lubricating additive particle storage, discharging, adding and the like are integrated in the oil pan and are tightly combined with the engine oil purification function, an efficient oil supply system is formed, the working efficiency and reliability of the whole lubricating system are improved, and the lubricating performance of engine oil can be greatly improved by adding the lubricating additive particles.

Description

Technical Field

[0001] The present invention belongs to the technical field of diesel engines, and specifically relates to a lubricating oil supply device and method for the oil sump of a diesel engine. Background Art

[0002] The crankcase is an important part of a diesel engine. Generally speaking, the crankcase of a diesel engine can be divided into an upper crankcase and a lower crankcase. The lower crankcase, usually also known as the oil sump, plays a key role in storing lubricating oil, while the upper crankcase is a place for accommodating and protecting important moving parts such as the crankshaft.

[0003] In the existing lubricating oil supply process of the oil sump, the oil pump generally sucks lubricating oil from the bottom of the oil sump through an oil inlet pipeline. At this time, the lubricating oil contains impurities such as metal chips, dust particles, and oxidized colloids generated during normal operation. A coarse filter is usually set in the oil inlet pipeline to intercept larger particles of impurities and prevent them from entering the oil pump and causing damage. The lubricating oil sucked from the oil sump is transported to the oil filter. After being filtered by the filter, the lubricating oil forms a certain pressure under the action of the oil pump and is transported to each lubricating part of the engine through the main oil passage.

[0004] To improve the lubrication performance of lubricating oil, adding particles is an important means. Different types of particles have their own characteristics and functions, and reasonable addition can significantly improve the performance of lubricating oil and meet the lubrication requirements of the engine under various working conditions. However, the existing oil supply device is difficult to achieve the coordinated operation of efficient purification of lubricating oil and precise addition of additives in a compact structure, and the dispersion stability of the additives is poor. Especially in the high-temperature and high-pressure engine operating environment, the agglomeration phenomenon intensifies, resulting in a rapid decline in the lubrication effect of the lubricating oil.

[0005] Therefore, we provide a lubricating oil supply device and method for the oil sump of a diesel engine to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a lubricating oil supply device and method for the oil sump of a diesel engine in view of the problems in the background art.

[0007] The present invention achieves the above purpose through the following technical solutions:

[0008] A diesel engine oil pan oil supply device, including a filter element that rotates in an oil pool body located at one end of the bottom of the oil pan, a first drive mechanism being provided above the filter element, the first drive mechanism being used to utilize the rotation of the crankshaft in the upper crankcase to drive the filter element to rotate, so as to centrifugally separate and purify the engine oil; the device also includes an oil supply pipe, one end of the oil supply pipe extending to the bottom of the filter element, and the other end extending to the crankshaft, the oil supply pipe being provided with an oil supply pump for conveying the purified engine oil to the lubrication system; the device also includes a particle storage ring mounted on the upper part of the filter element, the particle storage ring being used to add lubricating additive particles stored therein to the purified engine oil, and a spiral blade being mounted on the outer side of the filter element for mixing the lubricating additive particles and the engine oil.

[0009] As a further optimization scheme of the present invention, the first driving mechanism includes a first gear fixedly mounted on the crankshaft and a transmission gear set installed on the inner wall of the upper crankcase; the input shaft gear of the transmission gear set is meshed with the first gear, and a first bevel gear is fixedly provided on the output shaft of the transmission gear set. A rotating shaft is fixedly provided on the top of the filter element, and a second bevel gear meshing with the first bevel gear is fixedly provided on the rotating shaft.

[0010] As a further optimized solution of the present invention, the filter element is rotatably arranged in the center hole of the particle storage ring, and a flexible rubber sleeve is fixedly provided between the particle storage ring and the inner wall of the oil pool.

[0011] As a further optimization scheme of the present invention, a plurality of discharge components evenly distributed along the circumference are provided at the bottom of the particle storage ring; the discharge component includes a discharge pipe, a discharge hopper is fixedly provided on the top of one end of the discharge pipe, the discharge hopper is fixedly connected to the particle storage ring, a discharge auger is provided in the discharge pipe, and a second gear is fixedly provided at the end of the discharge auger.

[0012] As a further optimization scheme of the present invention, the bottom of the particle storage ring is also provided with a second driving mechanism for utilizing the rotation of the filter element to drive the operation of the unloading assembly; the second driving mechanism includes a rotating ring rotatably arranged at the bottom of the particle storage ring, a first arc-shaped rack is fixedly provided on the inner side surface of the rotating ring, a third arc-shaped rack meshing with the first arc-shaped rack is fixedly provided on the surface of the filter element, and a second arc-shaped rack meshing with the second gear is fixedly provided at the bottom of the rotating ring.

[0013] As a further optimization solution of the present invention, the pore size of the filter element is smaller than the particle size of the lubricating additive particles.

[0014] As a further optimization solution of the present invention, a plurality of grooves evenly distributed along the circumference are provided on the inner wall of the central hole of the particle storage ring, and a vibrating member is provided in each of the grooves.

[0015] As a further optimized solution of the present invention, the vibrating member includes a vibrating rod and a spring fixed to the end of the vibrating rod, and the spring is fixed in the groove; a plurality of chutes evenly distributed along the circumference are provided on the surface of the filter element, and a round head is provided at one end of the vibrating rod. The round head fits and slides on the surface of the filter element, and during the sliding process, the round head periodically slides into and out of the chute to generate a vibrating effect on the particle storage ring and the filter element.

[0016] The present invention also provides a method for supplying engine oil to the oil pan of a diesel engine, including the following steps:

[0017] S1. The engine oil containing impurities naturally falls into the oil sump under the action of gravity and accumulates in the filter element. When the diesel engine starts and the crankshaft begins to rotate, power is transmitted to the filter element through the first driving mechanism, causing the filter element to rotate at a high speed, and the engine oil is separated and purified by the filter element;

[0018] Wherein, during the rotation of the filter element, lubricating additive particles are added to the purified engine oil through the particle storage ring, and the spiral blade is used to evenly disperse the lubricating additive particles in the engine oil;

[0019] S2. Start the oil supply pump, and convey the purified engine oil along the oil supply pipe to the inside of the lubrication system of the diesel engine to complete the engine oil supply circulation process.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The present invention integrates functions such as storage, feeding, and addition of lubricating additive particles in the oil pan, and closely combines with the engine oil purification function to form an efficient oil supply system, improving the working efficiency and reliability of the entire lubrication system. The addition of lubricating additive particles can greatly enhance the lubrication performance of the engine oil.

[0022] 2. The present invention uses the rotation of the crankshaft to drive the rotation of the filter element, and uses the rotation of the filter element to drive the operation of the feeding assembly. It uses the power generated during the operation of the diesel engine itself, without the need to configure a dedicated power device additionally, simplifies the structure of the entire engine oil supply device, reduces the manufacturing cost and energy consumption of the equipment, and the rotation speed can also be dynamically adjusted according to the working conditions, and can accurately and evenly add lubricating additive particles to the engine oil according to requirements.

[0023] 3. The present invention applies vibration to the particle storage ring and the filter element by using a vibrating member, which can effectively prevent the lubricating additive particles from caking and accumulating during storage, ensure that the particles can smoothly pass through the feeding assembly and be added to the purified engine oil, can improve the filtering efficiency of the filter element, and ensure the purification effect of the engine oil. Description of the Drawings

[0024] Figure 1 is a three-dimensional schematic diagram of the overall structure of the present invention;

[0025] Figure 2 Schematic structural diagram of the first driving mechanism of the present invention;

[0026] Figure 3 Schematic structural diagram of the bottom of the particle storage ring of the present invention;

[0027] Figure 4 Schematic structural diagram of the blanking component and the second driving mechanism of the present invention;

[0028] Figure 5 Schematic structural diagram of the filter element of the present invention;

[0029] Figure 6 Schematic structural diagram of the vibrating part of the present invention.

[0030] In the figure:

[0031] 1, oil pan; 2, upper crankcase; 201, crankshaft; 3, filter element; 301, rotating shaft; 302, third arc-shaped rack; 303, spiral blade; 304, chute; 4, first driving mechanism; 401, first gear; 402, transmission gear set; 403, first bevel gear; 404, second bevel gear; 5, oil supply pipe; 501, oil supply pump; 6, particle storage ring; 601, groove; 602, flexible rubber sleeve; 7, blanking component; 701, blanking pipe; 702, hopper; 703, second gear; 8, second driving mechanism; 801, rotating ring; 802, first arc-shaped rack; 803, second arc-shaped rack; 9, vibrating part; 901, vibrating rod; 902, spring. Specific embodiments

[0032] The following further describes the present application in detail with reference to the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0033] Embodiment 1

[0034] In order to solve the problem that the existing oil supply device is difficult to achieve the coordinated work of efficient oil purification and accurate additive addition under a compact structure, please refer to Figure 1 - Figure 2 , Figure 5, an oil supply device for the oil pan of a diesel engine provided by the present invention includes a filter element 3 rotatably disposed in an oil sump body at one end of the bottom of the oil pan 1. Above the filter element 3, there is a first driving mechanism 4, which is used to drive the filter element 3 to rotate by using the rotation of the crankshaft 201 in the upper crankcase 2 so as to centrifugally separate and purify the engine oil; the device also includes an oil supply pipe 5, one end of the oil supply pipe 5 extends below the filter element 3, and the other end extends to the crankshaft 201. A fuel pump 501 for conveying the purified engine oil into the lubrication system is provided on the oil supply pipe 5; the device also includes a particle storage ring 6 sleeved on the upper part of the filter element 3, and the particle storage ring 6 is used to add the lubricating additive particles stored therein into the purified engine oil. A spiral blade 303 for mixing the lubricating additive particles and the engine oil is sleeved outside the filter element 3.

[0035] The first driving mechanism 4 transmits the power of the crankshaft 201 to the filter element 3, causing the filter element 3 to rotate at a high speed, so as to effectively separate the impurities and the pure engine oil in the engine oil under the action of centrifugal force, and recycle the lubricating additive particles. After the fuel pump 501 is started, the engine oil purified by the filter element 3 is conveyed along the oil supply pipe 5 into the lubrication system of the diesel engine to provide good lubrication for each component of the engine. During the purification process, the particle storage ring 6 adds the lubricating additive particles stored therein into the purified engine oil, and the spiral blade 303 will rotate synchronously with the rotation of the filter element 3, so that the lubricating additive particles are evenly dispersed in the engine oil, thereby further improving the lubrication performance of the engine oil; the lubricating additive particles can be nano-copper particles, boron nitride particles, etc. By continuously recycling and redispersing these particles, the long-term effectiveness of the engine oil can be maintained and the lubrication effect can be improved.

[0036] The first driving mechanism 4 includes a first gear 401 fixedly sleeved on the crankshaft 201 and a transmission gear set 402 installed on the inner wall of the upper crankcase 2; the input shaft gear of the transmission gear set 402 meshes with the first gear 401, and a first bevel gear 403 is fixedly provided on the output shaft of the transmission gear set 402. A rotating shaft 301 is fixedly provided at the top of the filter element 3, and a second bevel gear 404 meshing with the first bevel gear 403 is fixedly provided on the rotating shaft 301.

[0037] When the crankshaft 201 rotates, power is sequentially transmitted through the first gear 401, the transmission gear set 402, the first bevel gear 403, and the second bevel gear 404 to the rotating shaft 301, thereby driving the filter element 3 to rotate, realizing the centrifugal purification function. It can effectively separate impurities in the engine oil, such as metal debris, dust, etc., and lubricant additive particles from the engine oil and adhere them to the inner wall of the filter element 3, greatly improving the cleanliness of the engine oil. The first driving mechanism 4 drives the filter element 3 to rotate by means of the rotation of the crankshaft 201, utilizing the power generated during the operation of the diesel engine itself, without the need to additionally configure a dedicated power device, simplifying the structure of the entire engine oil supply device and reducing the manufacturing cost and energy consumption of the equipment.

[0038] The filter element 3 is rotatably arranged in the central hole of the particle storage ring 6. A flexible rubber sleeve 602 is fixedly arranged between the particle storage ring 6 and the inner wall of the oil sump body. The flexible rubber sleeve 602 not only ensures the stability of the installation of the particle storage ring 6 but also can buffer the vibration generated by the rotation of the filter element 3, avoiding affecting the structure of the oil pan 1. The pore diameter of the filter element 3 is smaller than the particle diameter of the lubricant additive particles. To ensure the stability of the concentration of lubricant additive particles in the engine oil, if the lubricant additive particles pass through the filter element 3, it will be difficult to control the dosage of the lubricant additive particles actually added to the engine oil, resulting in unstable additive concentration in the engine oil, affecting the lubrication performance of the engine oil and the protection effect on the engine, ensuring that each added additive can effectively blend into the engine oil, making the performance of the engine oil more stable and reliable, and providing continuous and consistent lubrication protection for the engine.

[0039] The present invention also provides a method for supplying engine oil to the oil pan of a diesel engine, including the following steps:

[0040] S1. The engine oil containing impurities naturally falls into the oil sump body under the action of gravity and accumulates in the filter element 3. When the diesel engine is started and the crankshaft 201 begins to rotate, power is transmitted to the filter element 3 through the first driving mechanism 4, causing the filter element 3 to rotate at a high speed, separating and purifying the engine oil through the filter element 3, and recovering the lubricant additive particles.

[0041] Among them, during the rotation of the filter element 3, lubricant additive particles are added to the purified engine oil through the particle storage ring 6, and the lubricant additive particles are evenly dispersed in the engine oil through the spiral blades 303.

[0042] S2. Start the oil supply pump 501, and transport the purified engine oil along the oil supply pipe 5 to the inside of the lubrication system of the diesel engine to complete the engine oil supply circulation process.

[0043] Embodiment 2

[0044] On the basis of Embodiment 1, in order to realize the automatic feeding of lubricant additive particles, such as Figure 3 - Figure 5As shown in the figure, a plurality of blanking components 7 evenly distributed along the circumference are provided at the bottom of the particle storage ring 6. The uniform distribution design can ensure that the lubricating additive particles can be evenly added to the surrounding engine oil, avoiding the situation of too high or too low local additive concentration; the blanking component 7 includes a blanking pipe 701, and a blanking hopper 702 is fixedly provided at the top of one end of the blanking pipe 701. The blanking hopper 702 is fixedly connected to the particle storage ring 6. A blanking auger is provided in the blanking pipe 701, and a second gear 703 is fixedly provided at the end of the blanking auger.

[0045] A second driving mechanism 8 for driving the blanking component 7 to operate by using the rotation of the filter element 3 is further provided at the bottom of the particle storage ring 6; the second driving mechanism 8 includes a rotating ring 801 rotatably provided at the bottom of the particle storage ring 6, and a first arc-shaped rack 802 is fixedly provided on the inner side surface of the rotating ring 801. A third arc-shaped rack 302 meshing with the first arc-shaped rack 802 is fixedly provided on the surface of the filter element 3, and a second arc-shaped rack 803 meshing with the second gear 703 is fixedly provided at the bottom of the rotating ring 801.

[0046] When the filter element 3 rotates, the rotation of the rotating ring 801 is driven by the meshing of the third arc-shaped rack 302 and the first arc-shaped rack 802. Then, through the meshing of the second arc-shaped rack 803 and the second gear 703, the blanking auger is driven to operate, and the lubricating additive particles in the particle storage ring 6 are conveyed into the purified engine oil through the blanking hopper 702 and the blanking pipe 701, realizing the quantitative conveying of the lubricating additive particles; by means of the second driving mechanism 8, the rotation of the filter element 3 is utilized to automatically drive the blanking component 7 to operate, so that the lubricating additive particles can be accurately and evenly added to the engine oil according to the requirements, further improving the lubrication performance of the engine oil. The addition amount of the lubricating additive particles can be dynamically adjusted according to the working conditions. For example, when the engine is running at a high load, the crankshaft 201 rotates fast, and the rotation speed of the filter element 3 also increases accordingly, thereby driving the blanking component 7 to operate faster and increasing the addition amount of the lubricating additive particles. On the contrary, when the engine is running at a low load, the addition amount of the additive decreases, and no additional power device is required to drive the blanking component 7, making the structure of the entire oil pan engine oil supply device more compact.

[0047] Embodiment Three

[0048] On the basis of Embodiment One and Embodiment Two, in order to prevent the lubricating additive particles from being blocked and to prevent the filter element 3 from being blocked, as Figure 5 - Figure 6 shown, a plurality of grooves 601 evenly distributed along the circumference are provided on the inner wall of the central hole of the particle storage ring 6, and a vibrating member 9 is provided in each groove 601.

[0049] The vibrating member 9 includes a vibrating rod 901 and a spring 902 fixed to the end of the vibrating rod 901, and the spring 902 is fixed in the groove 601; a plurality of chutes 304 evenly distributed along the circumference are provided on the surface of the filter element 3. One end of the vibrating rod 901 is provided with a round head, and the round head can reduce the frictional force with the surface of the filter element 3, so that the vibrating rod 901 can smoothly slide along the surface of the filter element 3. The round head slides along the surface of the filter element 3, and during the sliding process, the round head periodically slides into and out of the chute 304 to generate a vibrating effect on the particle storage ring 6 and the filter element 3.

[0050] When the filter element 3 starts to rotate driven by the first driving mechanism 4, the round head of the vibrating rod 901 will slide on its surface along with the rotation of the filter element 3. During the sliding process, due to the existence of the chute 304, the round head of the vibrating rod 901 will periodically slide into and out of the chute 304. When the round head slides into the chute 304, the elastic restoring force of the spring 902 will cause the vibrating rod 901 to extend outwards, and when the round head slides out of the chute 304, the spring 902 is squeezed, and the round head of the vibrating rod 901 recontacts the surface of the filter element 3. This periodic telescopic movement causes the vibrating rod 901 to vibrate, and then transmits the vibration to the particle storage ring 6 and the filter element 3. For the particle storage ring 6, the vibration can effectively prevent the lubricating additive particles from caking and accumulating during storage, ensuring that the particles can smoothly pass through the feeding assembly 7 and be added to the purified engine oil. For the filter element 3, the vibration can help shake off the impurities adhering to the inner wall of the filter element 3, improve the filtering efficiency of the filter element 3, and ensure the purification effect of the engine oil.

[0051] The above embodiments only represent one implementation manner of the present invention, and the description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A diesel engine oil pan oil supply device, comprising a filter element (3) rotatably arranged in an oil sump body at one end of the bottom of the oil pan (1), characterized in that: Above the filter element (3), there is a first driving mechanism (4). The first driving mechanism (4) is used to drive the filter element (3) to rotate by using the rotation of the crankshaft (201) in the upper crankcase (2) so as to centrifugally separate and purify the engine oil; The device further includes an oil supply pipe (5). One end of the oil supply pipe (5) extends below the filter element (3), and the other end extends to the crankshaft (201). An oil supply pump (501) for conveying the purified engine oil into the lubrication system is provided on the oil supply pipe (5); The device further includes a particle storage ring (6) sleeved on the upper part of the filter element (3). The particle storage ring (6) is used to add the lubricating additive particles stored therein into the purified engine oil. A spiral blade (303) for mixing the lubricating additive particles and the engine oil is sleeved outside the filter element (3).

2. The oil supply device for the engine oil in the diesel engine oil pan according to claim 1, wherein: The first driving mechanism (4) includes a first gear (401) fixedly sleeved on the crankshaft (201) and a transmission gear set (402) installed on the inner wall of the upper crankcase (2); The input shaft gear of the transmission gear set (402) meshes with the first gear (401). A first bevel gear (403) is fixedly provided on the output shaft of the transmission gear set (402). A rotating shaft (301) is fixedly provided at the top of the filter element (3), and a second bevel gear (404) meshing with the first bevel gear (403) is fixedly provided on the rotating shaft (301).

3. The oil supply device for the engine oil pan of a diesel engine according to claim 1, characterized in that: The filter element (3) is rotatably arranged in the central hole of the particle storage ring (6). A flexible rubber sleeve (602) is fixedly provided between the particle storage ring (6) and the inner wall of the oil sump body.

4. The oil supply device for the engine oil in the diesel engine oil pan according to claim 1, characterized in that: A plurality of blanking components (7) evenly distributed along the circumference are provided at the bottom of the particle storage ring (6); The blanking component (7) includes a blanking pipe (701). A blanking hopper (702) is fixedly provided at the top of one end of the blanking pipe (701). The blanking hopper (702) is fixedly connected with the particle storage ring (6). A blanking auger is arranged in the blanking pipe (701), and a second gear (703) is fixedly provided at the end of the blanking auger.

5. The oil supply device for the engine oil pan of a diesel engine according to claim 4, characterized in that: A second driving mechanism (8) for driving the blanking component (7) to operate by using the rotation of the filter element (3) is further provided at the bottom of the particle storage ring (6); The second driving mechanism (8) includes a rotating ring (801) rotatably arranged at the bottom of the particle storage ring (6). A first arc-shaped rack (802) is fixedly provided on the inner side surface of the rotating ring (801). A third arc-shaped rack (302) meshing with the first arc-shaped rack (802) is fixedly provided on the surface of the filter element (3). A second arc-shaped rack (803) meshing with the second gear (703) is fixedly provided at the bottom of the rotating ring (801).

6. The oil supply device for the engine oil pan of a diesel engine according to claim 5, characterized in that: The aperture of the filter element (3) is smaller than the particle size of the lubricating additive particles.

7. The oil supply device for the engine oil pan of a diesel engine according to claim 3, wherein: A plurality of grooves (601) evenly distributed along the circumference are provided on the inner wall of the central hole of the particle storage ring (6). A vibrating member (9) is arranged in each groove (601); 8. A diesel engine oil pan oil supply device according to claim 7, characterized in that: The vibrating member (9) includes a vibrating rod (901) and a spring (902) fixed at the end of the vibrating rod (901). The spring (902) is fixed in the groove (601); A plurality of chutes (304) evenly distributed along the circumference are provided on the surface of the filter element (3). One end of the vibrating rod (901) is provided with a round head, and the round head slides along the surface of the filter element (3), and during the sliding process, the round head periodically slides into and out of the chute (304) to generate a vibrating effect on the particle storage ring (6) and the filter element (3).

9. A method for supplying engine oil to the oil pan of a diesel engine, which uses an oil supply device for the oil pan of a diesel engine as described in any one of claims 1-8, characterized in that, The method includes the following steps: S1. The oil containing impurities naturally falls into the oil sump under the action of gravity and accumulates in the filter element (3). When the diesel engine starts and the crankshaft (201) begins to rotate, power is transmitted to the filter element (3) through the first driving mechanism (4) to make the filter element (3) rotate at a high speed, and the oil is separated and purified by the filter element (3). Among them, during the rotation of the filter element (3), lubricating additive particles are added to the purified oil through the particle storage ring (6), and the lubricating additive particles are evenly dispersed in the oil by the spiral blade (303). S2. Start the oil supply pump (501), and transport the purified oil along the oil supply pipe (5) to the inside of the lubrication system of the diesel engine to complete the oil supply circulation process.

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