212 results about "Oil consumption" patented technology

A turbocharger device relates to the technical field of internal combustion engine supercharging devices and comprises a bearing body, an oil supply pipeline and an integrated bearing. The integrated bearing comprises a pressing end integrated bearing and a vortex end integrated bearing which are arranged in parallel in the axial direction, the bearing body comprises a bearing seat inner wall face, a supporting sleeve is rotationally arranged in the bearing seat inner wall face, and the pressing end integrated bearing and the vortex end integrated bearing are located on the two sides of the supporting sleeve; the pressure end integrated bearing and the vortex end integrated bearing are correspondingly connected with a first oil supply pin and a second oil supply pin which are communicated with inner cavities of the pressure end integrated bearing and the vortex end integrated bearing in the radial direction, and the first oil supply pin and the second oil supply pin are fixed to the bearing body. The split type bearing system is used for solving the problems that although a split type bearing system in the prior art avoids the influence of high temperature, engine oil consumption is large, inner oil film lubrication is insufficient, and cost is high; although an integrated bearing system realizes low cost and structure simplification, the key problems of sufficient lubrication of an inner oil film, high-temperature reliability of a thrust surface and oil control capacity of a gas compressor side are obviously short.

The invention discloses a vehicle fuel consumption management method, system, device and product. The method comprises the steps of obtaining vehicle dynamic data; abnormal monitoring and alarm processing are carried out on the vehicle dynamic data, and an abnormal alarm event is generated; performing driving behavior analysis processing on the vehicle dynamic data to obtain a driving behavior report; performing dynamic route and speed optimization analysis and vehicle condition and energy consumption correlation optimization analysis processing on the vehicle dynamic data to obtain an optimization suggestion; and carrying out visual display on the abnormal alarm event, the driving behavior report and the optimization suggestion, and receiving an interaction instruction to carry out oil consumption management on a target vehicle. The embodiment of the invention can improve the fuel consumption management of the vehicle, and can be widely applied to the technical field of vehicle management.

The utility model discloses a gearbox for an oil-electricity double-engine ship. The gearbox comprises a box body, the diesel oil input component comprises a first input shaft, a first driving gear is sleeved on the first input shaft, and the first input shaft is provided with a first transmission gear and a first clutch; the reversing shaft part comprises a reversing shaft, a second driving gear is sleeved on the reversing shaft, the reversing shaft is provided with a second transmission gear and a second clutch, and the second transmission gear is meshed with the first transmission gear; the motor input component comprises a second input shaft, the second input shaft is sleeved with a third driving gear in an empty mode, the third driving gear is meshed with a first driven gear, the second driving gear is fixedly sleeved with the first driven gear, and the second input shaft is provided with a third clutch; the output shaft component comprises an output shaft and a second driven gear, and the second driven gear is meshed with the first driving gear and the second driving gear. According to the scheme, the diesel engine or the motor is independently used for driving, intelligent switching of the diesel engine and the motor can be achieved at any speed, oil consumption is reduced, and power performance is improved.

The application relates to the field of sanitation operation scheduling, in particular to a sanitation operation scheduling method based on the Internet of Things, which comprises the following steps: determining an iterative stop condition of a load CEEMDAN model based on time local weighted variance of load data, so as to generate vehicle load characteristics; generating vehicle oil consumption characteristics through an oil consumption CEEMDAN model based on statistical values of load data residuals and oil consumption data residuals, so as to calculate oil consumption channel residual signals; generating comprehensive vehicle carrying characteristics through a feature extraction model based on a multilayer perception machine, a gating mechanism and a cross-modal attention mechanism; and generating corrected vehicle garbage load through a long short-term memory network and a fully connected layer architecture. The application realizes efficient noise reduction and accurate decomposition of non-stationary time series data of oil consumption and load, realizes accurate processing of Internet of Things data of garbage transfer vehicles, improves the operation efficiency of the garbage transfer vehicles and reduces the operation cost.

The invention discloses a variable-displacement water pump for an engine and a water pump displacement control method, and relates to the technical field of water pumps, the variable-displacement water pump comprises a pump body, an impeller disc, an elastic part and a driving part, a pump shaft is rotationally connected to the center of the pump body, an impeller cover is fixedly connected to one end of the pump shaft, and a plurality of blades are arranged on the face, facing the pump body, of the impeller cover in the circumferential direction; the impeller disc sleeves the pump shaft, the impeller disc and the impeller cover are coaxially and oppositely arranged, the impeller disc can slide in the axial direction of the pump shaft, the impeller disc is provided with holes allowing the blades to penetrate through, the hole walls of the holes and the peripheral surfaces of the blades define liquid drainage intervals, the pump shaft is sleeved with the elastic piece, one end of the elastic piece abuts against the impeller disc, and the other end of the elastic piece abuts against the impeller disc. The driving part is arranged on the face, away from the impeller cover, of the impeller disc, the driving end of the driving part abuts against the impeller disc, and the acting force of the elastic part is opposite to that of the driving part. The size of the liquid drainage interval is adjusted through cooperation of the driving piece and the elastic piece, and variable displacement and oil consumption reduction are achieved.

A test method of gasoline engine generator set on engine test bench belongs to the technical field of engine test. The general engine test bench is reversibly and modularly transformed. The original power absorption device, the control and measurement industrial computer, the thermal / NVH collection system and the INCA computer are retained. The rectification, power measurement, adjustable electric load and oil consumption instrument device are newly added. The control system is reconstructed in double modes. The generator set test mode is added and the control function of the power absorption device is shielded. The speed / torque closed-loop control logic taking the adjustable electric load as the regulated variable is established. Relying on the synchronous collection of the unified clock, the microsecond time stamp alignment collection of the oil consumption, thermal, power, NVH and AC / DC electric performance of the generator set is realized. The test is carried out by reusing the extreme environment simulation system of the test bench. The transformation is reversible and non-damaging, does not affect the original function, can greatly reduce the equipment investment, improve the utilization rate of the test bench and provide support for the performance optimization of the generator set.

The invention discloses an engine pedestal oil supply pressure regulating system which comprises an engine assembly, a plurality of oil depots, an oil tank and a regulating assembly, the engine assembly is used for measuring oil consumption, the oil depots are arranged side by side and used for storing different types of oil products, and the oil tank is arranged above the engine assembly and used for temporarily storing the oil products. The oil tank can communicate with the multiple oil depots and the engine assembly, and the regulation and control assembly is arranged between the oil tank and the engine assembly and between the oil depots and used for controlling the oil tank to communicate with the engine assembly and the oil depots. According to the invention, the problems that gas exists in fuel oil and the pressure is violently fluctuated after pressure reduction due to relatively large pressure fluctuation when a pressure reducing and regulating valve group is used for supplying oil and regulating pressure for an engine pedestal can be effectively solved.

The application discloses a marine ultrasonic oil consumption measuring device and belongs to the technical field of oil consumption measurement. The device solves the technical problem that traditional fuel tank oil consumption meters and digital multifunctional oil consumption meters cannot meet the requirements of marine oil consumption measurement. The device comprises an oil inlet flowmeter, an oil return flowmeter, an oil return flowmeter interface CAN wire, an oil inlet flowmeter interface CAN wire and a ship end data acquisition unit. The oil inlet flowmeter is installed on an oil inlet pipe, and the oil return flowmeter is installed on an oil return pipe. The oil inlet flowmeter and the oil return flowmeter have the same structure. The oil inlet flowmeter comprises a first ultrasonic oil consumption sensor, a second ultrasonic oil consumption sensor and a control module. The time difference method is adopted to measure the flow between the first ultrasonic oil consumption sensor and the second ultrasonic oil consumption sensor. At the same time, the flow of the oil inlet pipe is monitored by the oil inlet flowmeter, the flow of the oil return pipe is monitored by the oil return flowmeter, and the flow of the oil inlet pipe and the flow of the oil return pipe are subtracted to obtain the fuel consumption of the marine main engine at the moment.

The application discloses a main speed reducer shell of an automobile driving axle, which comprises a shell provided with an oil channel structure, wherein a reduction working cavity and an output working cavity are formed in the shell, the oil channel structure supplies, collects and returns oil to the reduction working cavity, and an oil return port of the oil channel structure is communicated with the output working cavity; the reduction working cavity is divided into an input shaft chamber and an output shaft chamber, and the oil channel structure comprises a first oil hole, a tangential drainage plate, an oil collecting bag, a through oil channel and an oil return channel which are arranged on the shell; an outlet of the first oil hole is communicated with an inlet above an output shaft chamber shaft seat surface, and the tangential drainage plate is arranged at the outlet of the first oil hole and is tangent to a rotating working surface in the output shaft chamber. On the basis of ensuring lubricating effect, the speed reducer shell greatly reduces oil consumption, and the excess lubricating oil can be circulated, distributed and reused, thereby improving grease utilization rate and reducing high production cost caused by opening and grooving in independent oil supply.

The invention relates to the technical field of new-generation information technology and intelligent manufacturing, in particular to a private car public intelligent metering system based on multi-source data and electronic fences, which is characterized in that GPS mileage, OBD real-time oil consumption and IMU road condition data are automatically acquired through a vehicle-mounted intelligent terminal, and a multi-dimensional accurate cost metering model is constructed by combining an OCR bill recognition technology; the electronic fence technology is used for automatically identifying and stripping the official business journey, and only the official business journey is subjected to charge accounting; according to the system, the problems that traditional quota subsidy is not public, mileage subsidy is not accurate, bill reimbursement is tedious and the like are solved, scientific and accurate cost metering and efficient automation of a management process are realized, and the management efficiency is improved. And meanwhile, the privacy of employees is effectively guaranteed in the data processing process.

The utility model discloses a diesel engine timing system transmission structure with an oil-resistant belt and a diesel engine. The diesel engine timing system transmission structure comprises a driving wheel. The driving wheel comprises a driving wheel and a driving gear coaxial with the driving wheel; the air compressor gear and the crankshaft gear are meshed with the driving gear, the idle gear is meshed with the crankshaft gear, and the fuel pump gear and the oil pump gear are meshed with the idle gear. The timing oil-resistant belt is used for realizing transmission of the driving wheel and the driven wheel; and the tensioner is used for tensioning the timing oil-resistant belt. The wet type timing oil-resistant belt is adopted to achieve transmission, and noise, friction loss, weight, transmission efficiency, oil consumption, emission and the like are obviously improved.

The invention discloses an idling fuel consumption optimization control method and system for a commercial diesel vehicle, and relates to the technical field of whole vehicle systems.The method comprises the steps that the target idling rotating speed and the allowable rotating speed deviation range are set, the vehicle runs in the idling test state without additional loads, and the actual rotating speed of an engine is kept within the deviation range in the parameter adjusting process; the main injection oil injection timing, the pilot injection oil injection timing and the pilot injection oil quantity are sequentially adjusted based on oil consumption evaluation, and a calibration parameter combination covering the target rotating speed range is formed by recording oil consumption data of all adjustment points and gradually optimizing parameters; and finally, all target rotating speed parameters are rechecked, and the idling operation stability and the oil consumption optimization effect are ensured. By systematically adjusting each fuel injection parameter and keeping the rotating speed stable, the problem that the fuel consumption evaluation is inaccurate due to the fact that a single-point data and fixed sequence mode is mostly adopted in traditional idling fuel consumption calibration and a parameter coupling relation cannot be fully reflected is solved, and idling fuel consumption optimization and stability synchronous improvement are achieved.

The invention belongs to the technical field of lubricating oil, and particularly relates to a lubricating oil composition with a long oil change period as well as a preparation method and application thereof. The lubricating oil composition disclosed by the invention is prepared from the following components based on the total weight of the lubricating oil composition: 0.8 to 1.8 percent of a metal detergent, 1.5 to 2.5 percent of an ashless dispersant, 0.5 to 1.3 percent of an antioxidant and antiwear agent, 0.1 to 0.8 percent of an auxiliary antioxidant, 5 to 10 percent of a viscosity index improver, 0.2 to 0.5 percent of a pour point depressant, 0.001 to 0.01 percent of an anti-foaming agent and the balance of base oil. The lubricating oil composition disclosed by the invention passes a program IIIE engine bench test in the SJ standard requirement, the performance meets the SJ index requirement, the test time is prolonged by 40% compared with the standard time, and the lubricating oil composition has excellent volatile resistance and less engine oil consumption and meets the requirement of a gasoline engine generator for a long oil change period of 150h in the actual use process.

The application provides a hydraulic torque converter control method and device, and belongs to the field of automobile gearbox control. When current vehicle parameters meet preset conditions, especially when the current vehicle speed is within a preset vehicle speed range, the clutch in the hydraulic torque converter is controlled to switch to a sliding friction state, that is, a semi-linked state. In this state, the engine can stop fuel injection, and the engine can also be prevented from stalling due to low wheel speed dragging the engine or the engine losing connection with the wheels. In summary, the engine can continue to be fuel cut on the basis of avoiding engine stall, the fuel cut time is prolonged, and oil consumption is further reduced.

The utility model discloses a system for reducing the rotating speed of an internal combustion engine in a low power section of a generator set and the generator set, the generator set comprises the internal combustion engine, a permanent magnet synchronous motor, an AC-DC rectification unit and a DC-AC inversion unit, and the system comprises a power detection unit, a rotating speed control unit, a boost unit and a boost control unit; the power detection unit is used for detecting the output power of the alternating current output end of the DC-AC inversion unit, the rotating speed control unit is used for controlling the working state of a rotating speed control execution mechanism of the internal combustion engine according to the detected output power so that the internal combustion engine can work at the target rotating speed, and the boost control unit is used for collecting voltage signals of a direct current bus. And the working state of the boosting unit is controlled according to the collected voltage signal, and the boosting unit is used for boosting the input voltage of the DC-AC inversion unit to a target voltage value under the control of the boosting control unit. The power of the permanent magnet synchronous motor at a low rotating speed can be improved, so that the rotating speed of an internal combustion engine during low-power output is reduced, and oil consumption and noise are reduced.

The utility model relates to the technical field of bale collecting equipment, in particular to a hydraulic system of a small square bale bundling and collecting machine. The main hydraulic system comprises a plunger variable pump, a high-pressure filter and an electric proportional multi-way valve; the plunger variable pump adopts a plunger variable pump with pressure cut-off and load sensitive functions, and the electric proportional multi-way valve is a load sensitive electric proportional multi-way valve; the plunger variable pump is powered by a power shaft of a tractor; an oil inlet of the electric proportional multi-way valve is connected with a pressure oil port of the plunger variable pump through the high-pressure filter, and the high-pressure filter filters rolling oil. A control oil return port of the electric proportional multi-way valve is connected with the oil tank, and a load pressure feedback signal output port is connected with a feedback oil port of the plunger variable pump; the electric proportional multi-way valve comprises a multi-union reversing valve which is connected with an actuator to form hydraulic loops with different functions. The hydraulic system has the advantages of being high in output efficiency, saving fuel oil, reducing oil consumption, reducing heating of the hydraulic system, prolonging the service life of hydraulic elements and reducing pollution.

The invention discloses a ventilation device for preventing oil liquid in a bearing box from dripping outwards, which comprises a shell with an inner cavity, a cavity partition plate with a first gas discharge through hole is arranged in the shell, and the cavity partition plate divides the inner cavity of the shell into a gas discharge cavity and an oil mist filtering cavity which are communicated up and down; an oil mist filtering mechanism forming a spiral oil mist filtering channel is arranged in the oil mist filtering cavity, an oil mist leading-in mechanism and a lubricating oil recycling mechanism are arranged at the lower end of the shell, and the spiral oil mist filtering channel is communicated with the bearing box through the oil mist leading-in mechanism and the lubricating oil recycling mechanism; and a second gas discharge through hole communicated with the outside is formed in the side wall of the gas discharge cavity. The motor bearing box can effectively solve the problems that oil mist escapes outwards and oil drips outwards, consumption of lubricating oil is reduced, and meanwhile the motor bearing box has the advantages of being exquisite in structure and free of cooperation of an external power source.

The invention discloses an engine oil injection control method and device and a medium, and relates to the technical field of engine control. The method comprises the steps that the angular speed corresponding to a sensor at the current moment and monitoring data corresponding to a GPS are obtained; calculating a first acceleration and a first gradient based on the angular velocity, and calculating a second acceleration and a second gradient based on the monitoring data; calculating a first difference value between the first acceleration and the second acceleration and a second difference value between the first gradient and the second gradient; and oil injection power-up time is determined based on the first difference value and the second difference value, and oil injection control over the engine is conducted according to the oil injection power-up time. The engine oil consumption control method and device are used for solving the problems that in the prior art, when engine oil consumption control is conducted, the control performance is not high, and accurate control over all working conditions cannot be achieved, the control performance of engine oil consumption control is improved, and accurate control over all working conditions is achieved.

The application discloses a kind of underwater reciprocating observation platforms of throw load type buoyancy adjustment, belong to underwater survey technical field, comprising: shell, with located upper float block cabin and located lower weight block cabin;Float block cabin, multiple float blocks with throw load are provided in it;Weight block cabin, multiple weight blocks with throw load are provided in it;Throw load device, with driving device, linkage structure can be moved up and down under the drive of the driving device, and for throw load float block float block throw load structure and for throw load weight block weight block throw load structure;The linkage structure is connected between block throw load structure and weight block throw load structure, drives the float block throw load structure and weight block throw load structure action, realize the weight and float block are alternately thrown out.The equipment floats and sinks by the throw load of float block and weight block, break oil consumption oil bottleneck, realize lightweight and long endurance.After float block and weight block throw load, directly separate from equipment, will not cause additional load, the volume and weight of equipment can be accurately controlled.

This application provides a method, apparatus, device, and medium for monitoring engine lubricating oil. The method includes: acquiring vehicle driving data during the current driving start cycle; determining the lubricating oil consumption, mileage correction factor, and superimposed correction factor during the current driving start cycle based on the driving data, wherein the mileage correction factor corrects the lubricating oil consumption based on engine mileage, and the superimposed correction factor corrects the lubricating oil consumption based on the correlation between multiple influencing factors of lubricating oil consumption; and determining the vehicle's cumulative lubricating oil consumption based on the lubricating oil consumption during the current driving start cycle, the mileage correction factor, the superimposed correction factor, and the vehicle's historical lubricating oil consumption. This method eliminates the need for an additional level sensor, enabling targeted monitoring of lubricating oil consumption for vehicles with different driving habits and increasing the accuracy of engine lubricating oil monitoring.

The invention relates to the technical field of engineering machinery control, and discloses a control method and device for an automatic blowback prefilter, and the method comprises the steps: receiving a control instruction for the automatic blowback prefilter of mechanical equipment, which is input by a user, and obtaining an engine operation state of the mechanical equipment, and judging whether the running state of the engine meets a preset injection condition or not, when the running state of the engine meets the injection condition, controlling a target power supply of the mechanical equipment to supply power to the automatic blowback prefilter, and controlling the automatic blowback prefilter to execute injection operation according to a control instruction in a CAN bus control mode. Visibly, by implementing the method, multiple control modes (including timing, manual operation and flameout blowback control) can be integrated, so that the engine can perform blowing dust removal on the air filter without shutdown, and the problem that the air inlet resistance is increased due to dust accumulation in the air filter during continuous operation of equipment under a high-dust working condition is solved; therefore, the working efficiency and the operation convenience of the equipment are improved, and the oil consumption is effectively reduced.

The invention provides an agricultural machine emission prediction method, device and equipment, a medium and a computer program product, and the method comprises the steps: carrying out the feature extraction of the target operation track data of a to-be-predicted agricultural machine, and obtaining a driving condition feature and an engine condition feature; determining predicted oil consumption data of the agricultural machine to be predicted based on the driving working condition characteristics and the engine working condition characteristics; inputting the predicted fuel consumption data into an emission prediction model to obtain predicted emission data output by the emission prediction model; the emission prediction model is constructed based on historical agricultural machinery oil consumption data and historical agricultural machinery emission data. According to the method, the emission prediction model is constructed through the oil consumption data and the emission data, so that the emission of the agricultural machinery can be accurately predicted.

The application provides a method, device, storage medium and electronic equipment for maintaining an air filter. The method comprises: obtaining an air intake pressure of the air filter, wherein the air intake pressure is obtained by a pressure sensor installed at an air intake port of the air filter; determining an oil consumption degradation coefficient corresponding to the air filter according to the air intake pressure, wherein the oil consumption degradation coefficient reflects a difference between an actual oil consumption and a theoretical oil consumption; determining an oil consumption degradation amount according to the oil consumption degradation coefficient and the actual oil consumption, and determining an oil consumption degradation cost according to the oil consumption degradation amount; and generating a prompt information in a case where the oil consumption degradation cost is higher than a maintenance cost of the air filter, wherein the prompt information is used to prompt a user to maintain the air filter in time. The present scheme realizes timely maintenance of the air filter.

The invention discloses a load rejection type buoyancy-adjusted underwater reciprocating observation platform, which belongs to the technical field of underwater survey, and comprises a shell, which is provided with a floating block cabin positioned at the upper part and a heavy block cabin positioned at the lower part; a plurality of floating blocks capable of throwing loads are arranged in the floating block cabin; a plurality of heavy blocks capable of throwing loads are arranged in the heavy block cabin; the load rejection device is provided with a driving device, a linkage structure capable of moving up and down under the driving of the driving device, a floating block load rejection structure for rejecting a floating block and a heavy block load rejection structure for rejecting a heavy block; and the linkage structure is connected between the floating block load rejection structure and the heavy block load rejection structure and drives the floating block load rejection structure and the heavy block load rejection structure to act, so that the heavy block and the floating block are alternately thrown out. Floating and sinking of the equipment are achieved through load rejection of the floating block and the heavy block, the oil consumption bottleneck is broken through, and light weight and long endurance are achieved. And the floating block and the heavy block are directly separated from the equipment after load rejection, extra load cannot be caused, and the size and the weight of the equipment can be accurately controlled.

The invention relates to an endurance mileage determination method and device, equipment, a medium and a product, and the method comprises the steps: obtaining a corresponding preset oil consumption coefficient of a vehicle in each preset speed interval in the vehicle operation process under the condition that the current remaining oil quantity of the vehicle is smaller than a preset oil quantity threshold value; wherein the preset fuel consumption coefficient is determined according to the preset fuel consumption of the target vehicle in each preset speed interval in different load states under the condition that the remaining fuel quantity is smaller than a preset fuel quantity threshold value; according to the corresponding actual fuel consumption of the vehicle in each preset speed interval in the vehicle running process, weighting processing is conducted on the corresponding fuel consumption coefficient in each preset speed interval, and the whole vehicle fuel consumption of the vehicle is obtained; and determining the current endurance mileage of the vehicle based on the ratio of the current remaining fuel quantity to the fuel consumption of the whole vehicle. By the adoption of the method, the accuracy of the endurance mileage calculation result of the vehicle in the low-fuel-quantity state can be improved.

The invention discloses an oil leakage prevention structure suitable for a bearing box test hole. Relates to the field of turbine bearing boxes. Long-term oil leakage of a test hole of a bearing temperature measuring outgoing line of an existing steam turbine bearing box causes loss of lubricating oil, increase of operation cost, easiness in causing cascading failures such as equipment corrosion and the like, and influence on normal operation of a unit. The device comprises a screwed joint, an outer cover nut and a rubber plug, the screwed joint is of a hollow columnar structure with two open ends, an external thread A is arranged on the periphery of one end of the screwed joint, the external thread A is in screwed connection with an inner hole thread structure on the inner wall of a test hole port of a bearing temperature measuring leading-out wire on a bearing box, an external thread B is arranged on the inner periphery of the other end of the screwed joint, and the external thread B is matched with a thread of the outer cover nut; the outer cover nut is of a structure with the two ends open, and the outer cover nut is connected with the threaded connector through a threaded structure. The rubber plug is a conical elastic body and is arranged in a closed cavity defined by the threaded connector and the outer cover nut, and the tile temperature measuring leading-out wire penetrates through a center through hole of the rubber plug and extends out of the bearing box.

The utility model discloses a secondary cooling carrier roller device which comprises a supporting frame, a cold roller assembly and a cooling assembly. A hollow roller shaft is sleeved with a sleeve, the inner wall of the sleeve is connected with a V-shaped oil storage pipe through a fixing plate, and the middle of the oil storage pipe is communicated with a connecting ring pipe and an oil conveying pipe. Labyrinth plugging blocks and built-in spring rods are arranged at the two ends of the oil storage pipe, and the top ends of the spring rods are connected with guide slopes with plugging pieces. Bearings and labyrinth plates are arranged on the two sides of the sleeve, heat dissipation bent grooves are formed in the outer side of the hollow roller shaft, and the rotating pipe is connected with the water sump and the water pipe. The device realizes automatic supply of lubricating oil through rotating centrifugal force, and guides the inclined plane to accurately guide the lubricating oil to the bearing; heat exchange is enhanced by winding airflow and the heat dissipation bent grooves, and the cooling efficiency is improved by a water circulation system; and the labyrinth plate obstructs external impurities. The self-adaptive lubricating device has the advantages of self-adaptive lubrication, efficient heat dissipation, reliable sealing and the like, oil consumption can be reduced, the service life is prolonged, and the maintenance frequency is reduced.

The invention provides an extended range automobile instantaneous optimal control method considering engine thermal characteristics, which relates to the technical field of vehicle energy management, and comprises the following steps: firstly, acquiring engine data including engine torque, engine rotating speed, engine water temperature and the like through a sensor, and constructing an engine instantaneous oil consumption fitting database; secondly, a dynamic fuel consumption mechanism model considering engine thermal characteristics is constructed, and the influences of engine temperature, torque change gradient and the like on engine dynamic fuel consumption are fully represented; then, optimizing parameters in the engine dynamic fuel consumption mechanism model by adopting a black wing optimization algorithm; and finally, on the basis of the proposed dynamic fuel consumption mechanism model considering the engine characteristics, constructing an equivalent fuel consumption minimum strategy of the hybrid power system, and realizing instantaneous optimal control on the extended-range automobile.

The invention discloses a marine diesel engine injection control method, which belongs to the technical field of fuel injection control, and comprises the following steps of: acquiring working condition parameters of a current diesel engine, obtaining a current oil injection duration and an excess air coefficient, judging that the diesel engine is in a first working condition area when the oil injection duration and the excess air coefficient do not exceed set threshold values, otherwise, judging that the diesel engine is in a second working condition area; the diesel engine is in a second working condition area; the oil sprayer is provided with an upper row of spraying holes and a lower row of spraying holes, and the upper row of spraying holes and the lower row of spraying holes are controlled by the two needle valve systems respectively. When the diesel engine is in a first working condition area, only the lower row of spraying holes are opened, and when the diesel engine is in a second working condition area, the upper row of spraying holes and the lower row of spraying holes are opened; according to the design, different injection strategies can be accurately adopted according to different working conditions of the diesel engine, the combustion requirement is met, the air utilization rate in the whole combustion space can be effectively increased, and emission and oil consumption are reduced.

The utility model belongs to the technical field of vehicles, and discloses a vehicle cooling system and a vehicle, and the vehicle cooling system comprises a first low-temperature radiator and a second low-temperature radiator which are connected in parallel with a nine-way valve, and a water-cooling intercooler and a motor assembly which are connected in parallel with the nine-way valve, the first low-temperature radiator is connected with the nine-way valve through a first branch, the second low-temperature radiator is connected with the nine-way valve through a second branch and a third branch, the second branch is connected with the third branch in parallel, the water-cooling intercooler is connected with the nine-way valve through a fourth branch, and the motor assembly is connected with the nine-way valve through a fifth branch. A nine-way valve is used for controlling respective on-off of the five branches and on-off among the branches, so that the cooling mode can be flexibly adjusted under different vehicle working conditions, the problem that the temperature of cooling liquid of a motor with the in-situ rapid charging function of a plug-in hybrid vehicle is high can be effectively solved, and the working temperature of a battery in a pure electric mode can be ensured; and the oil consumption of the hybrid mode engine is reduced.