Analysis method and device for flow planning of engine oil pump

Abstract

The invention relates to the technical field of engine lubrication, and discloses an engine oil pump flow planning analysis method and device, and the method comprises the steps: obtaining a first information parameter of an engine, a second information parameter of a bearing in an engine assembly, and a third information parameter of a piston cooling nozzle; calculating a first reference flow required by the bearing according to the second information parameter, calculating a second reference flow of the piston cooling nozzle according to the first information parameter and the third information parameter, and determining a third reference flow required by other parts except the bearing and the piston cooling nozzle; and the rated rotating speed flow of the oil pump is determined according to the first information parameter, the first reference flow, the second reference flow and the third reference flow. By determining the flow required by each component of the engine, the flow requirement of the oil pump can be predetermined at the initial stage of project development, the appropriate oil pump is developed for an engine lubricating system, the lubricating effect and the lubricating efficiency are improved, and the oil consumption of the system is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of engine lubrication, and in particular to an analysis method and device for engine oil pump flow planning. Background Art

[0002] The main function of the oil pump is to transport oil to various friction parts of the engine, so that the oil circulates in the lubrication channel to ensure that the engine is well lubricated. During the circulation process, the oil can take away the heat generated during the operation of the engine, helping the engine to maintain an appropriate temperature; at the same time, the circulating oil can also take away impurities inside the engine to keep the interior clean.

[0003] As a key component in the engine's lubrication system, the performance of the oil pump directly impacts the engine's lubrication effectiveness and fuel consumption. Existing technologies typically control oil pump displacement during engine operation, but without prior planning. Consequently, improperly selected oil pumps—those unsuitable for the engine—can lead to low efficiency. Alternatively, excessive oil pump output can cause some high-pressure oil to overflow back into the oil pan, wasting fuel efficiency and increasing fuel consumption. Summary of the Invention

[0004] In view of this, the present invention provides an analysis method and device for engine oil pump flow planning to solve the problem of increased fuel consumption caused by failure to pre-plan the oil pump flow.

[0005] In a first aspect, the present invention provides an analysis method for engine oil pump flow planning, the method comprising:

[0006] Acquiring first information parameters of an engine, second information parameters of a bearing in an engine component, and third information parameters of a piston cooling nozzle;

[0007] Calculating a first reference flow rate required for the bearing according to the second information parameter, calculating a second reference flow rate for the piston cooling nozzle according to the first information parameter and the third information parameter, and determining a third reference flow rate required for the remaining components except the bearing and the piston cooling nozzle;

[0008] The rated speed flow rate of the oil pump is determined according to the first information parameter, the first reference flow rate, the second reference flow rate, and the third reference flow rate.

[0009] An embodiment of the present invention provides an analysis method for engine oil pump flow planning. This method determines the first reference flow required by the bearings based on the second information parameter of the bearings in the engine assembly, determines the second reference flow of the piston cooling nozzles based on the first information parameter of the engine and the third information parameter of the piston cooling nozzles, and determines the third reference flow of the remaining components. The rated speed flow of the oil pump is determined based on the first, second, and third reference flows. By determining the flow required by each engine component, the present invention can predetermine the flow requirements of the oil pump at the early stages of project development, develop a suitable oil pump for the engine lubrication system, improve lubrication effectiveness and efficiency, and reduce system fuel consumption.

[0010] In an optional embodiment, the second information parameters include: bearing clearance area, oil requirement and number of bearings, and obtaining the second information parameters of the bearings in the engine assembly includes: determining the structural type of each bearing in the engine assembly, and determining the number of bearings of the same type based on the structural type; determining the bearing clearance area and oil requirement of different types of bearings based on the structural type.

[0011] By determining the type and number of bearings in the engine, the present invention can determine the flow requirements of the bearings in the engine assembly according to the bearing deployment situation, and then plan the oil pump flow based on the large proportion of the bearing flow to the flow requirements of the engine lubrication system.

[0012] In an optional embodiment, the first reference flow required for the bearing is calculated based on the second information parameter, including: calculating the product of the bearing clearance area and the oil demand to obtain the first bearing flow of the preset type bearing; calculating the product of the first bearing flow and the number of bearings corresponding to the preset type bearing to obtain the second bearing flow of the same preset type bearing; adding the second bearing flows corresponding to bearings of different preset types to obtain the first reference flow.

[0013] By calculating the reference flow required by different types of bearings in the engine assembly, the present invention can determine the total flow demand of all bearings in the engine assembly based on the number of different types of bearings, thereby providing reliable data for oil pump flow planning.

[0014] In an optional embodiment, the first information parameter includes: effective power, rated speed and preset reference speed, and the third information parameter includes: flow coefficient and target efficiency. The second reference flow of the piston cooling nozzle is calculated based on the first information parameter and the third information parameter, including: calculating the product of the effective power and the flow coefficient to obtain the rated actual flow of the piston cooling nozzle; dividing the rated actual flow by the target efficiency to obtain the rated ideal flow of the piston cooling nozzle; dividing the rated ideal flow by the rated speed and multiplying it by the preset reference speed to obtain the second reference flow of the piston cooling nozzle.

[0015] The present invention can determine the required reference flow rate according to the performance of the piston cooling nozzle, and at the same time provide reliable reference data for subsequent planning of the oil pump flow rate based on the fact that the bearing flow rate and the piston cooling nozzle flow rate account for the vast majority of the flow demand of the engine lubrication system.

[0016] In an optional embodiment, the rated speed flow of the oil pump is determined based on the first information parameter, the first reference flow, the second reference flow and the third reference flow, including: adding the first reference flow, the second reference flow and the third reference flow to obtain the reference speed flow of the oil pump; dividing the reference speed flow by the preset reference speed and multiplying it by the rated speed to obtain the rated speed flow of the oil pump.

[0017] By converting the flow demand at a reference speed into the flow demand at a rated speed, the present invention can develop a suitable oil pump according to the rated flow demand. At the same time, it can perform project testing on the oil pump based on the rated flow demand, providing accurate and reliable data support for project development, improving project development efficiency, and shortening the project development cycle.

[0018] In a second aspect, the present invention provides an analysis device for engine oil pump flow planning, the device comprising: an information acquisition module for acquiring a first information parameter of the engine, a second information parameter of a bearing in an engine assembly, and a third information parameter of a piston cooling nozzle; a flow calculation module for calculating a first reference flow required for the bearing based on the second information parameter, calculating a second reference flow for the piston cooling nozzle based on the first information parameter and the third information parameter, and determining a third reference flow required for the remaining components except the bearing and the piston cooling nozzle; a flow planning module for determining the rated speed flow of the oil pump based on the first information parameter, the first reference flow, the second reference flow, and the third reference flow.

[0019] In a third aspect, the present invention provides a computer device comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to execute the analysis method for engine oil pump flow planning of the above-mentioned first aspect or any corresponding embodiment thereof.

[0020] In a fourth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the analysis method for engine oil pump flow planning of the above-mentioned first aspect or any corresponding embodiment thereof.

[0021] In a fifth aspect, the present invention provides a computer program product comprising computer instructions for causing a computer to execute the analysis method for engine oil pump flow planning according to the first aspect or any corresponding embodiment thereof.

[0022] In a sixth aspect, the present invention provides a method for developing an oil pump for mechanical equipment, wherein the oil pump is developed based on the rated speed flow rate determined by the analysis method for engine oil pump flow planning according to the first aspect or any corresponding embodiment thereof.

[0023] The method for developing a mechanical equipment oil pump provided by an embodiment of the present invention includes an analysis method for engine oil pump flow planning, and has the same effect as the analysis method for engine oil pump flow planning, so it will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 is a flow chart of an analysis method for engine oil pump flow planning according to an embodiment of the present invention;

[0026] Figure 2 is a schematic diagram of a lubrication system according to an analysis method for engine oil pump flow planning according to an embodiment of the present invention;

[0027] Figure 3 is a flow chart of another method for analyzing engine oil pump flow planning according to an embodiment of the present invention;

[0028] Figure 4 is a flow chart of another method for analyzing engine oil pump flow planning according to an embodiment of the present invention;

[0029] Figure 5 is a structural block diagram of an analysis device for engine oil pump flow planning according to an embodiment of the present invention;

[0030] Figure 6 Schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0032] The present invention is applicable to scenarios where a suitable oil pump is developed to provide low-fuel-consumption lubrication for an engine lubrication system. The present invention provides an analysis method for engine oil pump flow planning, which reduces fuel consumption in the engine lubrication system by pre-planning and analyzing the oil pump flow.

[0033] According to an embodiment of the present invention, an embodiment of an analysis method for engine oil pump flow planning is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0034] In this embodiment, an analysis method for engine oil pump flow planning is provided, which can be used in mobile terminals such as computers, Figure 1 FIG. 1 is a flow chart of an analysis method for engine oil pump flow planning according to an embodiment of the present invention. Figure 1 As shown, the process includes the following steps:

[0035] Step S101 , obtaining first information parameters of the engine, second information parameters of the bearings in the engine assembly, and third information parameters of the piston cooling nozzle.

[0036] Specifically, in the embodiment of the present invention, before providing a suitable oil pump for the engine, it is necessary to clearly understand the structural performance of the engine. Therefore, based on the digital model of the diesel engine, the layout of all components of the lubrication system is established to form a lubrication system schematic diagram, such as Figure 2 As shown, the component information is recorded. It can be seen that the engine components include various bearings (main bearings, connecting rod bearings, cam bearings, etc.), piston cooling nozzles, air compressors, high-pressure fuel pumps, superchargers, oil-gas separators, etc., and the number of various bearings varies. According to practical experience, the flow rate of bearings and piston cooling nozzles accounts for eighty to ninety percent of the flow demand in the engine lubrication system, and the flow rate required by the bearings and piston cooling nozzles is related to their relevant performance. Therefore, the embodiment of the present invention divides the flow rate of the drilling machine lubrication system into three parts: the flow rate required by the bearings, the flow rate required by the piston cooling nozzles, and the flow rate required by other components. The bearing information includes: type, quantity, bearing diameter and clearance, etc. The piston cooling nozzle information includes material, quantity, shooting efficiency and specific fuel consumption, etc.

[0037] In some optional embodiments, in order to calculate the required flow of each part, the embodiment of the present invention pre-acquires the first information parameters of the engine, including effective power, rated speed and preset reference speed, wherein the effective power of the engine refers to the power output through the engine flywheel after deducting the engine's own mechanical friction loss and the external loss of driving other auxiliary machines. The rated speed refers to the maximum speed at which the engine can run stably under normal working conditions. This value is usually marked in the equipment specifications or performance parameter table. The preset reference speed is a speed in the middle of the entire Map from the engine's idle speed to the rated speed. The speed is selected as an empirical value. For example, the idle speed of a general engine is 600rpm, the rated speed is 1800rpm, and the reference speed is set to 1000rpm. This is only an example and is not limited to this. At the same time, the second information parameters of the bearings in the engine assembly are obtained, including the bearing clearance area, the oil demand and the number of bearings; the third information parameters of the piston cooling nozzle are obtained, including the flow coefficient and the targeting efficiency of the piston cooling nozzle. Among them, the flow coefficient refers to the volume or mass of oil passing through the nozzle per unit time, reflecting the design and manufacturing quality of the nozzle. The larger the flow coefficient, the smaller the resistance when the fluid flows through the nozzle and the higher the efficiency; the targeting efficiency refers to the uniformity and effectiveness of the distribution of the oil sprayed by the nozzle in the target area. Efficient targeting means that the fluid can evenly cover the target area, thereby achieving the best cooling effect.

[0038] Step S102, calculate the first reference flow required by the bearing according to the second information parameter, calculate the second reference flow of the piston cooling nozzle according to the first information parameter and the third information parameter, and determine the third reference flow required by the remaining components except the bearing and the piston cooling nozzle.

[0039] Specifically, in an embodiment of the present invention, because the flow required by the bearing and piston cooling nozzles is related to their relevant performance, it is possible to predetermine the corresponding relationship between the reference flow required by the bearings and the bearing clearance area, the oil demand and the number of bearings, and predetermine the reference flow required by the piston cooling nozzles and the flow coefficient and the target efficiency. When planning the oil pump flow of the engine lubrication system, the first reference flow required by all bearings can be directly calculated based on the bearing clearance area, oil demand and the number of bearings determined by the current bearing deployment in the engine. At the same time, the second reference flow required by the piston cooling nozzle can be directly calculated based on the effective power, rated speed and preset reference speed of the engine, the flow coefficient and the target efficiency of the piston cooling nozzle. At the same time, other components are determined according to the oil consumption during the actual operation of the lubrication system to obtain a third reference flow. This part of the flow is generally not affected by engine performance or other parameters.

[0040] Step S103 : determining the rated speed flow of the oil pump according to the first information parameter, the first reference flow, the second reference flow, and the third reference flow.

[0041] Specifically, in an embodiment of the present invention, the first reference flow rate, the second reference flow rate, and the third reference flow rate obtained are determined based on the reference speed of the engine. Therefore, it is necessary to further convert the reference flow rate into the rated speed flow rate based on the reference speed and rated speed of the engine. At this time, the reference speed flow rate and the rated speed flow rate of the oil pump required by the engine can be obtained simultaneously, and these can be provided to the supplier as the oil pump displacement value to make samples for oil pump development. At the same time, subsequent tests can also be carried out based on the displacement value to determine whether the oil pump development is suitable, which can greatly save the development cycle and improve efficiency. When the developed oil pump is applied to the engine's lubrication system, it can improve the lubrication efficiency and lubrication effect of the lubrication system and reduce fuel consumption.

[0042] An embodiment of the present invention provides an analysis method for engine oil pump flow planning. This method determines the first reference flow required by the bearings based on the second information parameter of the bearings in the engine assembly, determines the second reference flow of the piston cooling nozzles based on the first information parameter of the engine and the third information parameter of the piston cooling nozzles, and determines the third reference flow of the remaining components. The rated speed flow of the oil pump is determined based on the first, second, and third reference flows. By determining the flow required by each engine component, the present invention can predetermine the flow requirements of the oil pump at the early stages of project development, develop a suitable oil pump for the engine lubrication system, improve lubrication effectiveness and efficiency, and reduce system fuel consumption.

[0043] In this embodiment, an analysis method for engine oil pump flow planning is provided, which can be used in the above-mentioned mobile terminal, such as a computer, etc. Figure 3 FIG. 1 is a flow chart of an analysis method for engine oil pump flow planning according to an embodiment of the present invention. Figure 3 As shown, the process includes the following steps:

[0044] Step S301: obtaining first information parameters of the engine, second information parameters of the bearings in the engine assembly, and third information parameters of the piston cooling nozzle.

[0045] Specifically, the above step S301 includes:

[0046] Step S3011: determining the structural type of each bearing in the engine assembly, and determining the number of bearings of the same type according to the structural type.

[0047] Specifically, in the embodiment of the present invention, Figure 2As shown, the engine contains many different types of bearings, and different types of bearings require different oil flow rates. Therefore, it is necessary to determine the structural type of each bearing, and then determine the number of bearings of the same type based on the structural type. For example, there are 7 main bearings, 6 connecting rod bearings, 7 cam bearings, 18 swingarm bearings, etc. This is only an example and is not limited to this.

[0048] Step S3012: determining the bearing clearance area and oil requirement of different types of bearings according to the structural type.

[0049] Specifically, in an embodiment of the present invention, the bearing has a bearing clearance. The bearing clearance area refers to the total area formed by the spaces reserved between the various components within the bearing. The bearing clearance area is designed to ensure that the bearing can operate smoothly and unimpeded during operation. However, the size of the bearing clearance directly affects the demand and consumption of engine oil. Generally, when grease lubrication is used, the oil amount should be controlled to approximately 20%-30% of the bearing clearance. Therefore, a larger clearance may lead to increased engine oil consumption, while an appropriate clearance can reduce excessive engine oil consumption. The size of the clearance area is directly affected by the bearing's design parameters such as model, size, and precision grade. Therefore, the embodiment of the present invention predetermines the bearing clearance area and engine oil demand for different types of bearings based on the bearing's structural type.

[0050] Step S302: Calculate the first reference flow required by the bearing based on the second information parameter, calculate the second reference flow required by the piston cooling nozzle based on the first information parameter and the third information parameter, and determine the third reference flow required by the remaining components except the bearing and piston cooling nozzle. Figure 1 Step S102 of the illustrated embodiment will not be described in detail here.

[0051] Step S303: Determine the rated speed flow of the oil pump based on the first information parameter, the first reference flow, the second reference flow, and the third reference flow. Figure 1 Step S103 of the illustrated embodiment will not be described in detail here.

[0052] An embodiment of the present invention provides an analysis method for engine oil pump flow planning. This method determines the first reference flow required by the bearings based on the second information parameter of the bearings in the engine assembly, determines the second reference flow of the piston cooling nozzles based on the first information parameter of the engine and the third information parameter of the piston cooling nozzles, and determines the third reference flow of the remaining components. The rated speed flow of the oil pump is determined based on the first, second, and third reference flows. By determining the flow required by each engine component, the present invention can predetermine the flow requirements of the oil pump at the early stages of project development, develop a suitable oil pump for the engine lubrication system, improve lubrication effectiveness and efficiency, and reduce system fuel consumption.

[0053] In this embodiment, an analysis method for engine oil pump flow planning is provided, which can be used in the above-mentioned mobile terminal, such as a computer, etc. Figure 4 FIG. 1 is a flow chart of an analysis method for engine oil pump flow planning according to an embodiment of the present invention. Figure 4 As shown, the process includes the following steps:

[0054] Step S401: Obtain first information parameters of the engine, second information parameters of the bearings in the engine assembly, and third information parameters of the piston cooling nozzles. Figure 3 Step S301 of the illustrated embodiment will not be described in detail here.

[0055] Step S402, calculate the first reference flow required by the bearing according to the second information parameter, calculate the second reference flow of the piston cooling nozzle according to the first information parameter and the third information parameter, and determine the third reference flow required by the remaining components except the bearing and the piston cooling nozzle.

[0056] Specifically, the above step S402 includes:

[0057] Step S4021: Calculate the product of the bearing clearance area and the oil demand to obtain a first bearing flow rate of a preset bearing type.

[0058] Specifically, in the embodiment of the present invention, the unit of the bearing clearance area is mm. 2 The unit of oil demand is L / mm 2 h, so the first bearing flow rate of the bearing can be obtained by multiplying the bearing clearance area and the oil demand.

[0059] Step S4022: Calculate the product of the first bearing flow rate and the number of bearings corresponding to the preset type of bearings to obtain a second bearing flow rate of the same preset type of bearings.

[0060] Specifically, in an embodiment of the present invention, bearings of the same type have the same structural performance and therefore require the same oil flow rate. In order to achieve corresponding functions, multiple bearings of the same type may be deployed in the engine. Therefore, the first bearing flow rate and the number of bearings corresponding to the preset type of bearings are multiplied to obtain the second bearing flow rate of the same type of bearings, that is, the total bearing flow rate of the same type of bearings.

[0061] Step S4023: Add the second bearing flow rates corresponding to bearings of different preset types to obtain a first reference flow rate.

[0062] Specifically, in this embodiment of the present invention, the oil flow rates required for different types of bearings are calculated sequentially, and finally the second bearing flow rates corresponding to the different types of bearings are subtracted to obtain the first reference flow rate required for all bearings in the engine. In summary, the calculation formula for the first reference flow rate is as follows:

[0063] First reference flow = bearing clearance area (mm 2 )*Oil requirement (L / mm 2 h)*Number of bearings

[0064] Step S4024: Calculate the product of the effective power and the flow coefficient to obtain the rated actual flow of the piston cooling nozzle.

[0065] Specifically, in an embodiment of the present invention, the unit of the engine effective power is kW, and the unit of the piston cooling nozzle flow coefficient is L / kWh, where the flow coefficient is generally 4 to 8, and the values ​​of pistons of different materials (steel pistons or aluminum pistons) are different. Therefore, by multiplying the effective power and the flow coefficient, the rated actual flow per unit time of the piston cooling nozzle can be obtained.

[0066] Step S4025: Divide the rated actual flow rate by the target shooting efficiency to obtain the rated ideal flow rate of the piston cooling nozzle.

[0067] Specifically, in the embodiments of the present invention, targeting efficiency refers to the uniformity and effectiveness of the oil sprayed from the nozzle within the target area. The design of the piston cooling nozzle significantly affects its targeting efficiency, and some oil may not reach the target area, resulting in oil loss. By dividing the rated actual flow rate by the targeting efficiency, the rated ideal flow rate for the piston cooling nozzle can be calculated, i.e., the oil flow rate required for 100% targeting efficiency.

[0068] Step S4026: Divide the rated ideal flow rate by the rated speed, and multiply the result by the preset reference speed to obtain a second reference flow rate of the piston cooling nozzle.

[0069] Specifically, in the embodiment of the present invention, because the rated ideal flow rate is the flow rate value at the rated speed, but the bearing flow rate is the flow rate value at the reference speed, the rated ideal flow rate is divided by the rated speed and multiplied by the preset reference speed to obtain the second reference flow rate at the rated speed. In summary, the calculation formula for the second reference flow rate is as follows:

[0070] Second reference flow rate = effective power (kW) * flow coefficient (L / kWh) / target efficiency / rated speed * reference speed

[0071] Step S403 : determining the rated speed flow of the oil pump according to the first information parameter, the first reference flow, the second reference flow, and the third reference flow.

[0072] Specifically, the above step S403 includes:

[0073] Step S4031: Add the first reference flow rate, the second reference flow rate, and the third reference flow rate to obtain a reference speed flow rate of the oil pump.

[0074] Specifically, in an embodiment of the present invention, the first reference flow of the bearing, the second reference flow of the piston cooling nozzle and the third parameter flow of other components are added together to obtain the oil flow value required by the engine, which is used as the reference speed flow of the oil pump, that is, the flow value at the reference speed.

[0075] Step S4032: Divide the reference speed flow rate by the preset reference speed and multiply the result by the rated speed to obtain the rated speed flow rate of the oil pump.

[0076] Specifically, in the embodiment of the present invention, the oil pump must be able to ensure the lubrication requirements of the engine when operating at the rated speed. Therefore, the rated speed flow rate is converted into the rated speed flow rate based on the rated speed and the reference speed. This is used as the project development requirement of the oil pump. The specific conversion formula is as follows:

[0077] Rated speed flow rate = reference speed flow rate / reference speed * rated speed

[0078] An embodiment of the present invention provides an analysis method for engine oil pump flow planning. This method determines the first reference flow required by the bearings based on the second information parameter of the bearings in the engine assembly, determines the second reference flow of the piston cooling nozzles based on the first information parameter of the engine and the third information parameter of the piston cooling nozzles, and determines the third reference flow of the remaining components. The rated speed flow of the oil pump is determined based on the first, second, and third reference flows. By determining the flow required by each engine component, the present invention can predetermine the flow requirements of the oil pump at the early stages of project development, develop a suitable oil pump for the engine lubrication system, improve lubrication effectiveness and efficiency, and reduce system fuel consumption.

[0079] This embodiment also provides an analysis device for engine oil pump flow planning. This device is used to implement the above-mentioned embodiments and preferred embodiments, and details already described will not be repeated. As used below, the term "module" may refer to a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0080] This embodiment provides an analysis device for engine oil pump flow planning, as shown in the figure "Analysis of Engine Oil Pump Flow Planning", including:

[0081] The information acquisition module 501 is used to acquire first information parameters of the engine, second information parameters of the bearings in the engine assembly, and third information parameters of the piston cooling nozzle.

[0082] The flow calculation module 502 is used to calculate the first reference flow required by the bearing based on the second information parameter, calculate the second reference flow of the piston cooling nozzle based on the first information parameter and the third information parameter, and determine the third reference flow required by the remaining components except the bearing and the piston cooling nozzle.

[0083] The flow planning module 503 is configured to determine the rated speed flow of the oil pump according to the first information parameter, the first reference flow, the second reference flow, and the third reference flow.

[0084] In some optional implementations, the information acquisition module 501 includes:

[0085] The bearing quantity determination unit is used to determine the structural type of each bearing in the engine assembly and determine the number of bearings of the same type according to the structural type.

[0086] The bearing parameter determination unit is used to determine the bearing clearance area and oil requirement of different types of bearings according to the structural type.

[0087] In some optional implementations, the flow calculation module 502 includes:

[0088] The first bearing flow calculation unit is used to calculate the product of the bearing clearance area and the oil demand to obtain a first bearing flow of a preset type of bearing.

[0089] The second bearing flow calculation unit is used to calculate the product of the first bearing flow and the number of bearings corresponding to the preset type of bearings to obtain a second bearing flow of the same preset type of bearings.

[0090] The first reference flow calculation unit is used to add the second bearing flow rates corresponding to bearings of different preset types to obtain a first reference flow rate.

[0091] In some optional implementations, the flow calculation module 502 further includes:

[0092] The actual flow calculation unit is used to calculate the product of effective power and flow coefficient to obtain the rated actual flow of the piston cooling nozzle.

[0093] The ideal flow calculation unit is used to divide the rated actual flow by the target efficiency to obtain the rated ideal flow of the piston cooling nozzle.

[0094] The flow conversion unit is used to divide the rated ideal flow by the rated speed and multiply the result by the preset reference speed to obtain a second reference flow of the piston cooling nozzle.

[0095] In some optional implementations, the traffic planning module 503 includes:

[0096] The reference speed flow calculation unit is used to add the first reference flow, the second reference flow and the third reference flow to obtain the reference speed flow of the oil pump.

[0097] The rated speed flow calculation unit is used to divide the reference speed flow by the preset reference speed and multiply the result by the rated speed to obtain the rated speed flow of the oil pump.

[0098] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0099] The analysis device for engine oil pump flow planning in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0100] The embodiment of the present invention also provides a computer device having the above Figure 5 The analysis device for engine oil pump flow planning is shown.

[0101] See also Figure 6 , Figure 6 is a structural diagram of a computer device provided by an optional embodiment of the present invention, such as Figure 6 As shown, the computer device includes: one or more processors 10, memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components utilize different buses to communicate with each other and can be installed on a common mainboard or installed in other ways as needed. The processor can process the instructions executed in the computer device, including instructions stored in the memory or on the memory to display the graphical information of the GUI on an external input / output device (such as, a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Equally, multiple computer devices can be connected, and each device provides part of the necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 6 A processor 10 is taken as an example.

[0102] The processor 10 may be a central processing unit, a network processor, or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit, a programmable logic device, or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic, or any combination thereof.

[0103] The memory 20 stores instructions that can be executed by at least one processor 10, so that the at least one processor 10 executes the method shown in the above embodiment.

[0104] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created based on the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely located relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0105] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid-state drive; the memory 20 may also include a combination of the above types of memory.

[0106] The computer device further includes a communication interface 30 for the computer device to communicate with other devices or a communication network.

[0107] The embodiment of the present invention also provides a computer-readable storage medium. The above-mentioned method according to the embodiment of the present invention can be implemented in hardware, firmware, or implemented as a computer code that can be recorded in a storage medium, or implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and downloaded through a network and will be stored in a local storage medium, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state drive, etc.; further, the storage medium can also include a combination of the above-mentioned types of memory. It can be understood that a computer, a processor, a microprocessor controller or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor or hardware, the method shown in the above embodiment is implemented.

[0108] A portion of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the form in which the computer program instruction exists in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc. Accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium that can be accessed by the computer.

[0109] The embodiment of the present invention also provides a method for developing an oil pump for mechanical equipment, such as automobiles, engineering machinery, etc. Figure 1 、 Figure 3 or Figure 4 The analytical method for engine oil pump flow planning shown determines the rated speed flow rate for oil pump development.

[0110] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An analysis method for engine oil pump flow planning, characterized in that: The method comprises: Acquire a first information parameter of the engine, a second information parameter of a bearing in an engine component, and a third information parameter of a piston cooling nozzle; Calculating a first reference flow rate required for the bearing according to the second information parameter, calculating a second reference flow rate for the piston cooling nozzle according to the first information parameter and the third information parameter, and determining a third reference flow rate required for the remaining components except the bearing and the piston cooling nozzle; The rated speed flow of the oil pump is determined according to the first information parameter, the first reference flow, the second reference flow and the third reference flow.

2. The method according to claim 1, characterized in that The second information parameter includes: bearing clearance area, oil requirement and bearing quantity. Acquiring the second information parameter of the bearing in the engine assembly includes: Determining the structural type of each bearing in the engine assembly, and determining the number of bearings of the same type according to the structural type; The bearing clearance area and the oil requirement of different types of bearings are determined according to the structural type.

3. The method according to claim 2, characterized in that The step of calculating the first reference flow required by the bearing according to the second information parameter comprises: Calculating the product of the bearing clearance area and the oil demand to obtain a first bearing flow rate of a preset type of bearing; Calculate the product of the first bearing flow rate and the number of bearings corresponding to the preset type of bearing to obtain a second bearing flow rate of the same preset type of bearing; The second bearing flow rates corresponding to the different preset types of bearings are added together to obtain the first reference flow rate.

4. The method according to claim 1, characterized in that: The first information parameter includes: effective power, rated speed and preset reference speed, the third information parameter includes: flow coefficient and target efficiency, and the second reference flow rate of the piston cooling nozzle is calculated according to the first information parameter and the third information parameter, including: Calculating the product of the effective power and the flow coefficient to obtain the rated actual flow of the piston cooling nozzle; Dividing the rated actual flow rate by the target shooting efficiency to obtain the rated ideal flow rate of the piston cooling nozzle; The rated ideal flow rate is divided by the rated rotational speed and multiplied by the preset reference rotational speed to obtain a second reference flow rate of the piston cooling nozzle.

5. The method according to claim 4, characterized in that The step of determining the rated speed flow of the oil pump according to the first information parameter, the first reference flow, the second reference flow, and the third reference flow includes: Adding the first reference flow rate, the second reference flow rate and the third reference flow rate to obtain a reference speed flow rate of the oil pump; The reference speed flow rate is divided by the preset reference speed and multiplied by the rated speed to obtain the rated speed flow rate of the oil pump.

6. An analysis device for engine oil pump flow planning, characterized in that: The device comprises: An information acquisition module, used to acquire a first information parameter of the engine, a second information parameter of a bearing in an engine assembly, and a third information parameter of a piston cooling nozzle; a flow calculation module, configured to calculate a first reference flow required by the bearing according to the second information parameter, calculate a second reference flow of the piston cooling nozzle according to the first information parameter and the third information parameter, and determine a third reference flow required by the remaining components except the bearing and the piston cooling nozzle; A flow planning module is used to determine the rated speed flow of the oil pump according to the first information parameter, the first reference flow, the second reference flow and the third reference flow.

7. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the analysis method for engine oil pump flow planning according to any one of claims 1 to 5 by executing the computer instructions.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the analysis method for engine oil pump flow planning according to any one of claims 1 to 5.

9. A computer program product, characterized in that The method comprises computer instructions for causing a computer to execute the analysis method for engine oil pump flow planning according to any one of claims 1 to 5.

10. A method for developing an oil pump for mechanical equipment, characterized in that: The oil pump is developed based on the rated speed flow rate determined by the analysis method for engine oil pump flow planning according to any one of claims 1 to 5.

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