Engine oil preheating system and vehicle

Abstract

The utility model provides an engine oil preheating system and a vehicle, and relates to the technical field of engine lubrication. The engine oil preheating system comprises an oil pan, an oil duct assembly and an oil pump assembly. Wherein the oil pan is provided with an oil chamber, and the oil chamber is used for storing engine oil. On the basis, the engine oil pump assembly communicates with the oil chamber and the oil duct assembly and is used for heating and extracting engine oil to the oil duct assembly. It is easy to understand that due to the fact that the engine oil pump assembly is directly communicated with the oil chamber and heats the engine oil while extracting the engine oil, heat can be directly transmitted to the engine oil, heat loss caused by a traditional indirect heating mode is avoided, heating efficiency is improved, and energy consumption is reduced. Therefore, according to the engine oil preheating system, the preheating effect and the heating efficiency are remarkably improved in a mode of directly heating the engine oil, the problem of insufficient lubrication caused by the fact that the viscosity of the engine oil is increased in extremely cold weather is effectively solved, and then the starting performance, the lubricating effect and the overall reliability of an engine are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine lubrication, and particularly relates to an engine oil preheating system and a vehicle. BACKGROUND

[0002] In extremely cold weather conditions, the viscosity of the engine oil in the oil pan will significantly increase, and the flowability will deteriorate. When the engine starts, the engine oil is difficult to quickly reach each friction pair of the engine, resulting in insufficient lubrication, which increases the friction and wear of the engine parts, reduces the service life of the engine, and may even cause the engine to start difficultly or fail to start.

[0003] Traditionally, in order to deal with the low-temperature starting problem, the engine preheating method relies on external heating devices to heat the engine coolant or intake air. However, the above method lacks specificity for engine oil preheating, the preheating effect is limited, the heating efficiency is low, and the problem of insufficient lubrication caused by the increase in engine oil viscosity cannot be effectively solved. SUMMARY

[0004] The utility model aims to provide an engine oil preheating system and a vehicle, which can directly heat the engine oil, thereby improving the preheating effect and heating efficiency and solving the problem of insufficient lubrication caused by the increase in engine oil viscosity in extremely cold weather.

[0005] Embodiments of the utility model can be implemented as follows:

[0006] In a first aspect, the utility model provides an engine oil preheating system, comprising:

[0007] An oil passage assembly;

[0008] An oil pan, the oil pan being provided with an oil chamber for storing engine oil;

[0009] An oil pump assembly, the oil pump assembly being connected to the oil chamber and the oil passage assembly and being used for heating and pumping engine oil to the oil passage assembly.

[0010] In an optional embodiment, the oil pump assembly comprises an electronic oil pump and a heater; the oil outlet end of the electronic oil pump is connected to the oil passage assembly, the oil inlet end of the electronic oil pump is connected to the oil chamber, and the heater is arranged at the oil inlet end of the electronic oil pump.

[0011] In an optional embodiment, the oil pump assembly further comprises a filter, the oil inlet end of the electronic oil pump is connected to the oil chamber through the filter, and the heater is arranged at the oil inlet end of the filter.

[0012] In an optional embodiment, the electronic oil pump, the filter, and the heater are integrally arranged.

[0013] In an optional embodiment, the engine oil preheating system further comprises a temperature sensor arranged in the oil gallery assembly and / or the oil chamber for obtaining the temperature of the engine oil.

[0014] In an optional embodiment, the engine oil preheating system further comprises a controller electrically connected with the oil pump assembly and the temperature sensor.

[0015] In an optional embodiment, the oil gallery assembly comprises a three-way valve, a main oil gallery, a preset oil gallery, and a piston cooling nozzle oil gallery; wherein the main oil gallery is in communication with the oil pump assembly and is in communication with the piston cooling nozzle oil gallery and / or the main oil gallery through the three-way valve.

[0016] In an optional embodiment, the engine oil preheating system further comprises a first main bearing, and the main oil gallery is configured to lubricate the first main bearing; and / or, the engine oil preheating system further comprises a second main bearing and a connecting rod bearing, and the main oil gallery is configured to lubricate the second main bearing and the connecting rod bearing in sequence.

[0017] In an optional embodiment, the engine oil preheating system further comprises a power battery electrically connected with the oil pump assembly.

[0018] In a second aspect, the utility model provides a vehicle, including vehicle body and the engine oil preheating system of any preceding embodiment, and the engine oil preheating system is arranged in the vehicle body.

[0019] The engine oil preheating system and the vehicle provided by the utility model embodiment have the following beneficial effects:

[0020] The utility model provides an engine oil preheating system and vehicle, including oil pan, oil gallery assembly and oil pump assembly. Among them, oil pan is equipped with oil chamber, and oil chamber is used for storing engine oil. On this basis, oil pump assembly communicates oil chamber and oil gallery assembly, and is used for heating and extracting engine oil to oil gallery assembly. It is easy to understand that because oil pump assembly is directly communicated with oil chamber and heated while extracting engine oil, heat can be directly transmitted to engine oil, avoids the heat loss caused by traditional indirect heating mode, improves heating efficiency and reduces energy consumption. Therefore, the engine oil preheating system of the application significantly improves the preheating effect and heating efficiency by directly heating engine oil, effectively solves the problem of insufficient lubrication caused by the increase of engine oil viscosity in extremely cold weather, and further improves the starting performance, lubrication effect and overall reliability of the engine. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation to the scope. Other related drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0022] Figure 1 The structure schematic diagram of the engine oil preheating system provided for the embodiment;

[0023] Figure 2 Another structure schematic diagram of the engine oil preheating system provided for the embodiment.

[0024] Icon: 10-engine oil preheating system; 100-oil passage assembly; 110-three-way valve; 130-main oil passage; 150-pre-set oil passage; 151-cylinder head intake side lubricating oil passage; 153-cylinder head exhaust side lubricating oil passage; 170-piston cooling nozzle oil passage; 200-oil sump; 210-oil chamber; 300-oil pump assembly; 310-electronic oil pump; 320-filter collector; 330-heater; 400-temperature sensor; 500-controller; 611-first main bearing; 613-second main bearing; 615-connecting rod bearing; 631-piston cooling nozzle; 633-piston; 651-intake side camshaft; 653-intake side hydraulic lifter; 655-intake side VVT; 657-high-pressure fuel pump; 671-exhaust side camshaft; 673-exhaust side hydraulic lifter; 675-exhaust side VVT; 710-oil cooler; 730-oil filter; 750-supercharger; 800-power battery. DETAILED DESCRIPTION

[0025] In the related art, the engine preheating method adopts a scheme of heating the engine coolant or intake air, lacks pertinence to oil preheating, and cannot effectively solve the problem of insufficient lubrication caused by increased oil viscosity.

[0026] In view of the above problems, the present application provides an engine oil preheating system 10 and a vehicle, which can directly heat the oil, thereby improving the preheating effect and heating efficiency, and improving the problem of insufficient lubrication caused by increased oil viscosity in extremely cold weather.

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the utility model.

[0029] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0030] In the description of the utility model, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, only for the convenience of describing the utility model and simplifying the description, and it does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0031] In addition, if the terms "first", "second" and the like are used only for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0032] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0033] The overall structure, working principle and technical effects of the engine oil preheating system 10 provided by the utility model will be described in detail below through embodiments and in combination with the drawings.

[0034] Figure 1 The structural schematic diagram of the engine oil preheating system 10 provided for the embodiment, Figure 2 Another structural schematic diagram of the engine oil preheating system 10 provided for the embodiment. Please refer to Figure 1 And Figure 2 The utility model provides an engine oil preheating system 10 applied to a vehicle.

[0035] The engine oil preheating system 10 comprises an oil pan 200, an oil passage assembly 100 and an oil pump assembly 300. The oil pan 200 is provided with an oil chamber 210 for storing engine oil. The oil pump assembly 300 is connected to the oil chamber 210 and the oil passage assembly 100, and is used for heating and pumping engine oil to the oil passage assembly 100.

[0036] It is easy to understand that, since the oil pump assembly 300 is directly connected to the oil chamber 210 and heats the engine oil while pumping, the heat can be directly transferred to the engine oil, avoiding the heat loss caused by the traditional indirect heating method, improving the heating efficiency and reducing the energy consumption.

[0037] Therefore, the engine oil preheating system 10 of the present application significantly improves the preheating effect and heating efficiency by directly heating the engine oil, effectively solves the problem of insufficient lubrication caused by the increase of engine oil viscosity in extremely cold weather, and further improves the starting performance, lubrication effect and overall reliability of the engine.

[0038] In some embodiments, the oil passage assembly 100 comprises a three-way valve 110, a main oil passage 130, a preset oil passage 150 and a piston cooling nozzle oil passage 170. The main oil passage 130 is connected to the oil pump assembly 300, and is connected to the piston cooling nozzle oil passage 170 and / or the main oil passage 130 through the three-way valve 110.

[0039] It should be noted that the meaning of and / or here is that two oil passages can be connected at the same time, or one of the two oil passages can be connected independently. Specifically, as shown in Figure 2 The opening of the three-way valve 110 connected to the main flow passage is defined as 1, the opening connected to the preset flow passage is defined as 2, and the opening connected to the piston cooling nozzle oil passage 170 is defined as 3. In practical applications, 1-2 can be connected, or 1-2 and 1-3 can be connected at the same time.

[0040] In addition, the piston cooling nozzle oil passage 170 is provided with a plurality of piston cooling nozzles 631 for uniformly cooling the pistons 633 at the specified positions. Each piston cooling nozzle 631 is in a normally open state. Optionally, the three-way valve 110 is an electronic proportional three-way valve 110, which can realize the switching between the two modes of 1-2 connection and 1-2 and 1-3 connection, and cool the pistons 633 as needed.

[0041] In practical scenarios, the electronic proportional three-way valve 110 can switch different operating modes when the engine power is around 30 kW. Specifically, when the engine power is below 30 kW, the electronic proportional three-way valve 110 can switch to the 1-2 mode because the piston 633 has a low thermal load and does not need to be cooled. When the engine power gradually rises above 30 kW, the electronic proportional three-way valve 110 can switch to the 1-2 and 1-3 modes because the piston 633 has a high thermal load and needs to be cooled. Moreover, as the engine power increases, the electronic proportional three-way valve 110 can further increase the flow area of the 1-2 mode to enable a larger flow of oil to be sprayed from the piston cooling nozzle 631 to cool the piston 633.

[0042] In the present application, the engine oil preheating system 10 further includes a pressure sensor arranged in the main oil gallery 130, which is configured to detect the oil supply pressure of the main oil gallery 130. Optionally, the pressure sensor is electrically connected to the three-way valve 110 to make the opening time and opening degree control of the three-way valve 110 more accurate, thereby making the oil output control of the piston cooling nozzle 631 more precise.

[0043] As shown in FIG. 1, the engine oil preheating system 10 further includes a pre-set oil gallery 150, which is arranged in the main oil gallery 130 and is configured to supply lubricating oil to the cylinder head 650. Figure 2 As shown in FIG. 1, the pre-set oil gallery 150 includes a cylinder head intake side lubricating oil gallery 151 and a cylinder head exhaust side lubricating oil gallery 153. The lubricating oil supplied by the cylinder head exhaust side lubricating oil gallery 153 is used to lubricate the exhaust side camshaft 671, the exhaust side hydraulic tappet 673, and the exhaust side VVT 675 (Variable Valve Timing). The lubricating oil supplied by the cylinder head intake side lubricating oil gallery 151 is used to lubricate the intake side camshaft 651, the intake side hydraulic tappet 653, the intake side VVT 655, and the high-pressure fuel pump 657.

[0044] In addition, the oil in the main oil gallery 130 can also be used to lubricate the friction pairs in the engine oil preheating system 10. Specifically, the engine oil preheating system 10 further includes a first main bearing 611, and the main oil gallery 130 is configured to supply oil to lubricate the first main bearing 611. In addition, the engine oil preheating system 10 further includes a second main bearing 613 and a connecting rod bearing 615, and the main oil gallery 130 is configured to supply oil to lubricate the second main bearing 613 and the connecting rod bearing 615 in sequence.

[0045] In the present embodiment, to optimize temperature control and effectively filter impurities, the engine oil preheating system 10 further includes an oil cooler 710 and an oil filter 730. The oil inlet end of the oil cooler 710 is connected to the oil outlet end of the oil pump assembly 300, the oil inlet end of the oil filter 730 is connected to the oil outlet end of the oil cooler 710, and the oil outlet end of the oil filter 730 is connected to the main oil gallery 130.

[0046] In addition, to enhance the circulation of engine oil, the engine oil preheating system 10 can further include a booster 750. The booster 750 is in communication with the main oil gallery 130 and the oil chamber 210, and can increase the circulation speed and pressure of the lubricating oil between the main oil gallery 130 and the oil chamber 210, so that the lubricating oil of the main oil gallery 130 flows back into the oil chamber 210.

[0047] Based on the above, that is, the description, the oil pump assembly 300 in the present application can heat the oil circulation, and ensure that each friction pair can be effectively lubricated when the engine starts. Specifically, please refer to Figure 1 , the oil pump assembly 300 includes an electronic oil pump 310 and a heater 330.

[0048] The oil outlet end of the electronic oil pump 310 is in communication with the oil gallery assembly 100, and the oil inlet end of the electronic oil pump 310 is in communication with the oil chamber 210. That is, the electronic oil pump 310 is used to extract the oil in the oil chamber 210 to the oil gallery assembly 100. In actual scenarios, the electronic oil pump 310 can adjust the speed according to different engine conditions, speed, torque, and oil temperature, to realize precise control of the oil pressure in the oil gallery assembly 100. The heater 330 is arranged at the oil inlet end of the electronic oil pump 310, so as to effectively preheat the oil before it enters the electronic oil pump 310, ensure that the oil temperature entering the oil gallery assembly 100 is appropriate, and improve the lubrication effect.

[0049] Further, the oil pump assembly 300 further includes a filter 320, and the oil inlet end of the electronic oil pump 310 is in communication with the oil chamber 210 through the filter 320. It should be noted that the filter 320 can filter out large particles of impurities (such as metal shavings, carbon deposits, etc.) in the oil chamber 210, to ensure that the oil entering the electronic oil pump 310 has high cleanliness, thereby reducing the wear of the electronic oil pump 310 and prolonging its service life. Based on the above, the heater 330 is correspondingly arranged at the oil inlet end of the filter 320. Alternatively, the electronic oil pump 310, the filter 320, and the heater 330 are integrally arranged, so as to form a compact and efficient modular assembly.

[0050] In order to quickly identify whether the oil has reached an appropriate temperature, the engine oil preheating system 10 further includes a temperature sensor 400 arranged in the oil gallery assembly 100 and / or the oil chamber 210, for acquiring the temperature of the oil. In some embodiments, such as when the oil gallery assembly 100 and the oil chamber 210 form a circulation pipeline, the temperature sensor 400 can be provided with only one, which is located in the oil gallery assembly 100 or the oil chamber 210; in other embodiments, the temperature sensor 400 can be provided with two, which are respectively located in the oil gallery assembly 100 or the oil chamber 210.

[0051] To further realize the intelligent temperature control, the engine oil preheating system 10 further comprises a controller 500. And the controller 500 is electrically connected with the oil pump assembly 300 and the temperature sensor 400. Based on the above, even if the description, the controller 500 can receive the temperature sensor 400 signal, and issue instructions to control the electronic oil pump 310 and the heater 330 to operate.

[0052] Exemplarily, the temperature sensor 400 can transmit the detected oil temperature information to the controller 500. Since the controller 500 is provided with a preset temperature (the temperature value corresponds to the oil viscosity threshold suitable for engine starting), when the oil temperature is lower than the preset temperature, the controller 500 controls the heater 330 to start the heating function, and controls the electronic oil pump 310 to circulate the oil in the oil chamber 210 at a certain flow rate, so that the oil is heated when entering the electronic oil pump 310.

[0053] With the operation of the above process, the oil temperature gradually rises, and it is easy to understand that when the oil temperature reaches or exceeds the preset temperature, the oil viscosity will be reduced to the range suitable for engine starting. At this time, the engine is started, the controller 500 controls the heater 330 to stop heating, and controls the electronic oil pump 310 to continuously deliver oil, so that the oil with viscosity meeting the requirements is delivered to each friction pair of the engine to ensure effective lubrication.

[0054] In addition, it also needs to be explained that the engine oil preheating system 10 further comprises a power battery 800, and the power battery 800 is electrically connected with the oil pump assembly 300. It is easy to understand that the power battery 800 is used to power the oil pump assembly 300, so that the oil pump assembly 300 realizes the extraction and heating of the oil. For example, when the oil temperature is less than the preset temperature, the power battery 800 powers the electronic oil pump 310 and the heater 330; when the oil temperature is greater than the preset temperature, the power battery 800 stops powering the heater 330. Alternatively, the controller 500 can be electrically connected with the power battery 800 and the pressure sensor in the foregoing embodiment, and intelligently operate under the action of the controller 500.

[0055] In summary, the engine oil preheating system 10 provided by the present application comprises an oil pan 200, an oil passage assembly 100 and an oil pump assembly 300. The oil pan 200 is provided with an oil chamber 210 for storing engine oil. On this basis, the oil pump assembly 300 is connected to the oil chamber 210 and the oil passage assembly 100, and is used for heating and pumping engine oil to the oil passage assembly 100. It is easy to understand that, since the oil pump assembly 300 is directly connected to the oil chamber 210 and heats engine oil while pumping engine oil, heat can be directly transferred to engine oil, avoiding heat loss caused by the traditional indirect heating method, improving heating efficiency and reducing energy consumption. Therefore, the engine oil preheating system 10 of the present application significantly improves the preheating effect and heating efficiency by directly heating engine oil, effectively solves the problem of insufficient lubrication caused by the increase of engine oil viscosity in extremely cold weather, and further improves the starting performance, lubrication effect and overall reliability of the engine.

[0056] In addition, the present application also provides a vehicle comprising a vehicle body and the engine oil preheating system 10 in the foregoing embodiments. Moreover, the engine oil preheating system 10 is arranged in the vehicle body. Based on the arrangement of the vehicle body and the engine oil preheating system 10 in the foregoing embodiments, the vehicle can also directly heat engine oil, thereby improving the preheating effect and heating efficiency, and improving the problem of insufficient lubrication caused by the increase of engine oil viscosity in extremely cold weather. Details are not described herein.

[0057] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An engine oil preheating system, characterized in that, include: Oil passage components; An oil pan, wherein the oil pan is provided with an oil chamber for storing engine oil; An oil pump assembly, the oil pump assembly connecting the oil chamber and the oil passage assembly, and used to heat and draw the oil into the oil passage assembly; The oil pump assembly includes an electronic oil pump and a heater; wherein, the oil outlet of the electronic oil pump is connected to the oil passage assembly, the oil inlet of the electronic oil pump is connected to the oil chamber, and the heater is located at the oil inlet of the electronic oil pump. The oil pump assembly also includes a filter strainer. The oil inlet of the electronic oil pump is connected to the oil chamber through the filter strainer, and the heater is located at the oil inlet of the filter strainer.

2. The engine oil preheating system according to claim 1, characterized in that, The electronic oil pump, the filter, and the heater are integrated into one unit.

3. The engine oil preheating system according to claim 1 or 2, characterized in that, The engine oil preheating system also includes a temperature sensor located in the oil passage assembly and / or the oil chamber to obtain the temperature of the engine oil.

4. The engine oil preheating system according to claim 3, characterized in that, The engine oil preheating system also includes a controller, which is electrically connected to the oil pump assembly and to the temperature sensor.

5. The engine oil preheating system according to claim 1 or 2, characterized in that, The oil passage assembly includes a three-way valve, a main oil passage, a preset oil passage, and a piston cooling nozzle oil passage; wherein, the main oil passage is connected to the oil pump assembly, and is connected to the piston cooling nozzle oil passage and / or the main oil passage through the three-way valve.

6. The engine oil preheating system according to claim 5, characterized in that, The engine oil preheating system further includes a first main bearing, the main oil passage being used to lubricate the first main bearing with oil; and / or, the engine oil preheating system further includes a second main bearing and a connecting rod bearing, the main oil passage being used to lubricate the second main bearing and the connecting rod bearing sequentially with oil.

7. The engine oil preheating system according to claim 1 or 2, characterized in that, The engine oil preheating system also includes a power battery, which is electrically connected to the oil pump assembly.

8. A vehicle, characterized in that, It includes a vehicle body and an engine oil preheating system as described in any one of claims 1 to 7, wherein the engine oil preheating system is disposed within the vehicle body.

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