2074 results about "Oil supply" 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 provides a multi-pump zero-displacement hydraulic agile control system and a control method thereof. The system is composed of a hydraulic system, a mechanical system and an electric control system. According to the control method, a multi-pump zero-displacement switching mechanism and a deep reinforcement learning strategy based on an Actor-Critic architecture are fused, the effective oil supply amount is adjusted by dynamically starting and stopping part of hydraulic pumps, a servo motor rotating speed instruction is output in real time in combination with a neural network, and the strong coupling dynamic relation between sliding block displacement and the angle of a swing rod is coordinated. The system switches part of the pumps to a bypass state when approaching balance so as to reduce energy consumption, and starts all the pumps to guarantee recovery capacity when greatly deviating. According to the technical scheme, on the premise of not depending on an accurate mathematical model, agile, stable and energy-saving control over the inverted pendulum type under-actuated system can be achieved.

The invention relates to a sliding wear performance evaluation method of a sliding bearing, a sliding wear testing machine and application. The method comprises the following steps: acquiring initial-state benchmark characterization of a sliding bearing sample, placing the sliding bearing sample at a test station of the sliding wear testing machine, outputting lubricating oil, collecting a process oil sample, and acquiring final-state characterization of the sliding bearing sample after the test is completed; on the basis of initial state benchmark characterization, process oil sample analysis data, final state characterization and working condition parameters applied by a sliding wear testing machine, the wear stage and the wear mechanism are analyzed, and the sliding wear performance of the sliding bearing is evaluated; a sliding shaft supporting module, a rotating power module, an oil supply lubricating module and a radial load pressurizing module are arranged on the testing machine matching platform; the method is applied to wear resistance evaluation of sliding bearings prepared by adopting different processes. According to the invention, the core working condition of the actual dynamic pressure bearing is accurately reproduced, the stability and durability of the test system are improved, and the occurrence, development and evolution process of wear is visualized and quantifiable.

The invention belongs to the field of target drone fuel oil systems, and particularly relates to a self-adaptive supersonic speed target drone fuel oil system and a control method thereof. The system comprises a machine body oil tank, a first electromagnetic valve, an overflow valve, a pressurization oil tank, a fuel pump, an engine pump, a monitoring module and a control module. The body fuel tank comprises a main fuel tank and an auxiliary fuel tank which are arranged in a fuel tank in the middle of the target drone body and located in front of and behind the theoretical mass center of the target drone respectively. The pressurization oil tank is additionally arranged in the fuel oil cabin, fuel oil in the engine body oil tank enters the pressurization oil tank for pressure maintaining after being pressurized by the fuel oil pump, and then oil is supplied to the engine from the pressurization oil tank, so that stable oil supply to the engine is achieved by establishing a local pressure environment instead of a large pressure environment of the whole fuel oil cabin, and therefore when a fuel oil system works, the fuel oil can be stably supplied to the engine. The oil supply flow and pressure are controlled in a closed-loop mode in real time through the control system according to the engine state.

The invention discloses a self-adaptive test system and method for a hydraulic power unit, and the system comprises a test bench which is provided with a fixing tool for fixing the tested hydraulic power unit; the oil tank unit is arranged in the test bed and is used for supplying oil to and pumping oil from the tested hydraulic power unit; and the counterweight test unit is arranged in the test bench, the counterweight test unit comprises a counterweight module, and the counterweight module is connected with a working oil port of a tested hydraulic power unit through a first oil path. The device is simple in structure, directly simulates the real gravity load borne by the hydraulic execution mechanism through the counterweight module, and can accurately test the lifting and descending dynamic performance and the pressure maintaining internal leakage characteristic of the power unit under the load condition. The problems that a traditional back pressure method cannot truly simulate the gravity load, and descending speed control and energy recovery performance are difficult to evaluate are effectively solved.

[Problem] Reduction of the stirring resistance that arises in a motor in a coolant circulation system in which an oil-containing coolant circulates to cool and lubricate the motor.[Means of solution] A coolant circulation system 100 comprises: a motor 4 with a rotor 41, a stator 42, a rotating shaft 43 and plain bearings 44; a gas-liquid separator 12, which separates a coolant into CO2 and oil; a CO2 passage 22b, through which the CO2 separated by the gas-liquid separator is supplied to a gap between the rotor and the stator to cool the rotor and the stator; mixing channels 24a, through which a mixture of the CO2 and the oil, obtained by mixing the CO2 and the oil separated by the gas-liquid separator, is supplied to gaps between the rotating shaft and the plain bearings to lubricate the plain bearings; and mixing channels 24b, through which the CO2 supplied to the rotor and the stator from the CO2 channel 22b and the mixture of CO2 and oil supplied to the sliding bearings 44 from the mixing channels 24a are returned to the gas-liquid separator.

The invention discloses a lubricating structure for a wind power gear box, the gear box and wind power equipment, and the lubricating structure comprises a main oil supply part which comprises a main oil way extending in the axial direction of the main oil supply part and a plurality of oil through holes communicating with the main oil way and supplying oil to an outer side rotating part in the radial direction; the first oil supply assembly comprises a first supporting piece and an oil inlet pipe, and one end of the oil inlet pipe communicates with an inner cavity of the first supporting piece and the oil through hole; and the second oil supply assembly comprises a secondary oil inlet ring arranged on the main oil supply piece in a sleeving mode and a second supporting piece arranged on the outer side of the secondary oil inlet ring in a sleeving mode, a secondary oil way surrounding the main oil supply piece is formed between the secondary oil inlet ring and the main oil supply piece, and the secondary oil way communicates with the oil through hole on one hand and communicates with an inner cavity of the second supporting piece on the other hand. The main oil supply part, the first oil supply assembly and the second oil supply assembly are arranged in the hollow area in the gearbox, and oil ways are communicated, so that frictional wear generated by relative rotation of the oil supply assemblies in the lubricating oil inlet structure of the wind power gearbox can be avoided or reduced.

The invention relates to the technical field of linear motors, in particular to a T-shaped mover linear motor with a self-lubricating function, which comprises a rack and a mover motor, a load platform is mounted at the top of the mover motor, and guide blocks which are symmetrically distributed are fixed on the inner wall of the load platform; guide grooves which are symmetrically distributed and matched with the guide blocks are formed in the side wall of the rack, oil storage cavities which are symmetrically distributed are formed in the load platform, oil outlet holes are formed in the guide blocks in a penetrating mode, one end of each oil outlet hole is communicated with the corresponding oil storage cavity, and an oil storage tank is arranged on one side of the rack and connected with an automatic oil supplementing mechanism. Wherein an oil supply mechanism is arranged in the oil storage cavity; according to the linear motor, in the reciprocating motion process of the rotor, the oil supply mechanism can continuously discharge the lubricant in the oil storage cavity from the oil outlet hole and uniformly smear the lubricant on the surface of the guide groove to achieve self-lubrication, the automatic oil supplementing mechanism automatically supplements the lubricant to the oil storage cavity, manual intervention is not needed in the whole process, and the stability and maintenance-free performance of equipment operation are remarkably improved.

The invention relates to the technical field of die-casting machines, in particular to a die-casting machine rapid energy storage device, a control method and a die-casting machine, the energy storage device comprises a control unit, an oil supply unit, an energy storage unit, a first pressure collection unit used for collecting the output pressure of the oil supply unit, and a second pressure collection unit used for collecting the internal pressure of the energy storage unit; the control unit is respectively connected with the first pressure acquisition unit and the second pressure acquisition unit; the oil supply unit is communicated with the energy storage unit to convey hydraulic oil; the control unit is configured to control the oil supply unit to be in a speed control mode in the energy storage stage of the die-casting machine so that the oil supply unit can operate according to a preset speed instruction, and meanwhile, according to the first pressure value of the first pressure collection unit and the second pressure value of the second pressure collection unit, a pressure control instruction output to the oil supply unit is adjusted in real time. Therefore, the energy storage stage time of equipment is shortened, the production period of the equipment is relatively shortened, and the speed ring and the pressure ring of the servo oil pump are used in cooperation.

The invention provides a direct ignition baffling combustion chamber and an engine, and belongs to the technical field of aero-engines, the direct ignition baffling combustion chamber comprises a cartridge receiver, an oil supply assembly, an oil flinger and an ignition device, the cartridge receiver comprises an outer cartridge receiver, an inner cartridge receiver, a flame tube outer ring and a flame tube inner ring cavity; an oil supply assembly on the cartridge receiver is provided with an oil spraying hole; the oil flinger is rotationally arranged at the oil spraying hole of the oil supply assembly; the ignition end face of the ignition device extends to the gas side of the flame tube inner ring. Fuel oil is conveyed into the oil flinger through the oil spraying hole of the oil supply assembly, the ignition end face of the ignition device extends to the inner ring gas end of the flame tube, an oil mist cone atomized by the oil flinger can be directly beaten to the position close to the ignition end face, the oil mist cone can be directly ignited, and high-reliability ignition of the combustion chamber can be achieved without additionally arranging an auxiliary ignition device. According to the direct ignition baffling combustion chamber, the problem that an auxiliary ignition device needs to be arranged when an indirect ignition mode is adopted in a baffling combustion chamber in the prior art is solved.

An oil supply system, has: an oil tank; a closed-loop oil circuit including a component, a pump having a pump inlet and a pump outlet, and a de-aerator; a make-up flow conduit connecting the oil tank to the closed-loop oil circuit; a make-up pump connected to the closed-loop oil circuit; a recirculation conduit in parallel to the make-up pump and bypassing the make-up pump; a fixed orifice fluidly connected to the make-up flow conduit upstream of the closed-loop oil circuit and downstream of the recirculation conduit, the fixed orifice having an area selected to increase a pressure at an outlet of the make-up pump above a pressure at the de-aerator inlet; and a metering orifice connected on the recirculation conduit and having a flow circulating area selected to reduce a flow rate inputted into the closed-loop oil circuit below a flow rate generated by the make-up pump.

The disclosure discloses an oil circuit system, a lifting device, an electric jack, a press, a crane, and a tire mounting / dismounting and transport apparatus. The oil circuit system comprises a lifting oil cylinder, the tank, the first oil feed line, the second oil feed line, the oil inlet / outlet line, the pressure relief line, the oil return line, the first valve, the second valve; the first oil feed line is the gear pump assembly oil feed line; and the second oil feed line is the plunger pump assembly oil feed line. Under no-load or low-pressure conditions of the lifting device, the gear pump assembly can quickly pump a larger volume of low-pressure hydraulic oil, enabling quick lifting or lowering of the lifting device. Under high-pressure conditions, the plunger pump assembly can quickly pump higher pressure hydraulic oil to the lifting oil cylinder to enable slow lifting or lowering.

The invention discloses a hydrostatic guideway, a hydrostatic oil cavity pressure regulating method and a machine tool, the hydrostatic guideway comprises a guideway assembly, a sliding assembly and an oil supply assembly, and the guideway assembly comprises a first guideway and a second guideway; the sliding assembly comprises a sliding seat, a first limiting part and a second limiting part, the first limiting part and the second limiting part are installed on the two opposite sides of the sliding seat respectively in the first direction, sliding grooves are defined by the first limiting part and the second limiting part and the sliding seat, and the first guide rail and the second guide rail are arranged in one-to-one correspondence with the sliding grooves respectively and slidably arranged in the sliding grooves in a sleeved mode; a first static pressure oil cavity is formed between one of the first guide rail and the second guide rail and the side walls of the two opposite sides of the sliding groove in the first direction. In the second direction, second static pressure oil cavities are formed between the first guide rail and the second guide rail and the inner wall faces of the two opposite sides of the sliding groove. The hydrostatic guideway at least can solve the problem that the design scheme of the hydrostatic guideway in the prior art easily causes the reduction and even disappearance of the pressure of the vertical hydrostatic guideway.

The utility model provides a multi-point oil supply lubricating device for a bearing of a phase modifier. The multi-point oil supply lubricating device comprises an oil storage and supply box body, an oil supply access pipe, three oil pumps, three groups of oil supply branch pipe assemblies and an adjusting and mounting protection frame, an oil supply access pipe is arranged at the top of the oil storage and supply tank body, three oil pumps are fixedly mounted on the oil storage and supply tank body, and the three oil pumps are connected with the three oil supply branch pipe assemblies correspondingly and used for extracting lubricating oil in the oil storage and supply tank body and independently conveying the lubricating oil to the corresponding oil supply branch pipe assemblies for fixed-point oil supply; one side of the top of the oil storage and supply tank body is provided with an adjusting and mounting protection frame capable of adjusting the positions of the three groups of oil supply branch pipe assemblies and protecting the three groups of oil supply branch pipe assemblies; and the adjusting and mounting protection frame comprises a mounting plate mounted on the oil storage and supply tank body and three protection pipe frames capable of adjusting the height and respectively penetrating through the three groups of oil supply branch pipe assemblies. Three paths of relatively independent oil supply structures can be formed, and a high-temperature protection effect can be achieved on the branch pipe part, close to the bearing part of the phase modifier, of the oil supply branch pipe assembly.

The invention relates to the technical field of operation and maintenance control of coal mine equipment, in particular to an intelligent adjustment method and system for the lubrication state of the coal mine equipment based on deep learning, and the method comprises the steps: firstly collecting pressure difference signals of an oil supply pipeline and an oil return pipeline, and extracting time domain non-stationary fluctuation and frequency domain energy distribution characteristics through a dual-channel feature fusion network; generating an oil film thickness estimation value and a pollution degree index, when the oil film thickness is lower than a dynamic maintenance threshold value, dynamically generating the duration and interval of oil injection pulses through a reinforcement learning strategy network of a double-branch competitive architecture in combination with an equipment wear coefficient and historical oil injection feedback, and triggering online self-cleaning circulation when the pollution degree exceeds the limit; pollutants are removed through the high-gradient magnetic filter element, three-section type high-flow-speed washing and magnetic pulse desorption, a pollution degree base line is updated, the lubrication adjusting accuracy is improved, and stable operation of equipment is guaranteed.

The utility model discloses a rock splitter which comprises a cylinder body and a sliding cavity arranged on the lower portion of the cylinder body, two splitting blocks are connected in the sliding cavity in a sliding mode, plugging plates fixedly connected with the cylinder body are arranged on the two sides of the sliding cavity, and a telescopic wedge block is tightly attached between the splitting blocks. A plurality of oil outlet holes are formed in the contact surfaces of the corresponding wedge blocks and the splitting blocks, the oil outlet holes communicate with oil conveying channels in the splitting blocks, the upper portions of the oil conveying channels are connected with oil conveying branch pipes capable of synchronously moving with the splitting blocks, the oil conveying branch pipes extend to the outer portion of the sliding cavity and are connected with oil conveying hoses, and the two oil conveying hoses are converged to be connected with an oil conveying main pipe; the oil conveying main pipe is communicated with the automatic oil filling pump. According to the utility model, the contact surface between the splitting block and the wedge block is provided with the oil outlet hole, the oil conveying channel, the oil conveying hose and other structures which are communicated with the automatic oil filling pump, so that the lubricating oil does not need to be manually smeared, the tedious process and workload are reduced, the working efficiency is improved, and meanwhile, the safety risk caused by accidental starting of equipment possibly caused by manual smearing is avoided.

The invention relates to an oil injection assembly for static pressure sliding block oil film rigidity testing, and belongs to the technical field of static pressure guide rail performance testing. The oil injection assembly structurally comprises a box body, an oil inlet is formed in one side of the box body, multiple sets of oil outlets are formed in the bottom of the box body, and a main oil inlet pipe and multiple sets of auxiliary oil inlet pipes are arranged in the box body; one end of the main oil inlet pipe is fixedly arranged on the oil inlet, the other end of the main oil inlet pipe is provided with an air outlet, the air outlet is provided with a driving assembly, one ends of the auxiliary oil inlet pipes are communicated with the main oil inlet pipe, the other ends of the auxiliary oil inlet pipes are fixedly arranged on the oil outlets, and the tops of the oil outlets are all provided with opening assemblies. Closing assemblies are arranged on the multiple sets of oil liquid outlets, the driving assembly is connected with the opening assembly and the closing assemblies, the driving assembly is used for driving the opening assembly and the closing assemblies to slide, and a distance sensor is arranged on one side of the box body; the oil supply device has the technical effect that bubbles generated in oil during oil supply are reduced.

The invention provides an aviation oil filling system and an aviation oil filling device. The aviation oil filling system comprises a pair of oil barrels and an oil pumping system, the oil pumping system comprises a pair of oil pump assemblies, a filter separator, a flow meter, a rubber pipe reel and an oil filling gun, and the pair of oil pump assemblies are inserted into the pair of oil barrels respectively and make contact with oil in the oil barrels. The pair of oil pump assemblies is sequentially communicated with the filter separator, the flow meter, the rubber pipe reel and the oil gun to form an oil filling loop. Wherein during refueling, one oil pump assembly in the pair of oil pump assemblies is in a working state, and the other oil pump assembly is in an idle state. By arranging the pair of oil barrels, the capacity of the aviation oil filling system is increased, the aviation oil supply volume is improved, and meanwhile by arranging the pair of oil pump assemblies to work in turn, the oil supply efficiency can be improved.

The invention relates to the technical field of fuel nozzle performance testing, in particular to an integrated high-precision fuel flow testing method and detection method.The testing method comprises the steps that a spraying test bed or a nozzle test bed is correspondingly selected based on whether a to-be-tested workpiece tests the spraying angle or not; after the integrated high-precision fuel oil flow testing device is in a reset state, a corresponding motor rotating speed is input to a digital control system based on the calibrated flow of the workpiece to be tested, a plunger pump of a high-pressure oil supply system is started, and oil liquid in an oil tank system is pumped to a corresponding spray test bed or nozzle test bed to run; the actual pressure difference of the workpiece to be measured is collected and transmitted to the digital control system, the actual pressure difference and the target pressure difference are compared, and the actual pressure difference is adjusted; when the preliminarily obtained actual oil flow is larger than a detection threshold value, the actual oil flow corresponding to the current flowmeter is defined as corresponding detection data; and when the preliminarily obtained actual oil flow is smaller than or equal to the detection threshold value, a weighing method is adopted for flow detection.

The utility model discloses a covering part side drawing die which comprises a lower die base, an upper die base and an oil supply mechanism, a lower oil spraying hole is formed in the top of the lower die base, a first electromagnetic valve communicated with the lower oil spraying hole is arranged on the side wall of the lower die base, an upper oil spraying hole is formed in the bottom of the upper die base, and a second electromagnetic valve communicated with the upper oil spraying hole is arranged on the side wall of the upper die base. A first electromagnetic valve communicated with the upper oil hole is arranged on the side wall of the upper die base, a second electromagnetic valve communicated with the upper oil hole is arranged on the side wall of the upper die base, the oil supply mechanism comprises an oil barrel, an oil pump communicated with the oil barrel and an oil supply pipeline communicated with the oil pump, and the oil supply pipeline is respectively communicated with the first electromagnetic valve and the second electromagnetic valve. The lower oil spraying button controls the oil pump and the first electromagnetic valve to be opened, the lubricating oil is sprayed to the bottom of the automobile covering part material from the lower spraying hole to keep the bottom of the automobile covering part material lubricated, the lubricating oil is sprayed to the top of the automobile covering part material from the upper spraying hole to keep the top of the automobile covering part material lubricated, and friction scratching of the bottom and the top is avoided.

An overload protection device of a rotary cultivator is simple in structure, an overflow valve is mounted on an oil supply pipeline of a hydraulic motor, and when a rotary blade or a rotary blade shaft touches an obstacle which cannot be cut off, hydraulic pressure at an oil inlet of the hydraulic motor is increased suddenly, so that the overflow valve is opened to quickly release pressure, and the rotating speed and torque of the hydraulic motor are quickly reduced; therefore, impact is buffered, overload protection is achieved, and the rotary blade and the blade shaft can be protected. Meanwhile, after the rotary blade can rotate at a low speed to bypass an obstacle, the oil supply management hydraulic pressure is lowered, the overflow valve is closed, so that normal oil supply to the hydraulic motor is recovered, the working state of the rotary blade can be automatically recovered, manual operation is not needed, use is very convenient, and efficiency is high. In addition, a buffering assembly can be additionally arranged, the transmission tile is driven to be far away from the cutter shaft through hydraulic force generated when the oil pressure of the oil supply pipeline is increased suddenly, and therefore power between the rotary blade or the cutter shaft and the hydraulic motor is rapidly disconnected, impact force is rapidly buffered, and overload protection performance is further improved.

The invention belongs to the technical field of modified preparation of porous oil-containing materials, and provides a hierarchical porous oil-containing composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing a polymer and a corresponding polymer covalent organic framework material, and sequentially carrying out cold pressing and hot sintering to obtain the hierarchical porous polymer composite material. And placing the hierarchical porous composite material in lubricating oil, and carrying out vacuum impregnation to obtain the hierarchical porous oil-containing composite material. The hierarchical porous oil-containing composite material prepared by the preparation method provided by the invention realizes self-adaptive oil supply within a wide rotating speed range and under different centrifugal forces, can meet the characteristics of maintenance-free property, high precision, high reliability, maintenance-free property and environmental friendliness of the material, and meets the upgrading of high-end equipment towards long service life and intelligence; and meanwhile, the balance of enhanced adsorption and high oil content (20%)-high oil retention rate (gt; 90%) of the lubricating oil is realized.

The invention relates to a subcritical / supercritical fuel rotational flow oil supply type combustor and a gas-oil rotational mixing method, the subcritical / supercritical fuel rotational flow oil supply type combustor comprises an outer-stage venturi tube, an inner-stage venturi tube and a nozzle which are coaxially arranged, an outer-stage air rotational flow channel is arranged between the outer-stage venturi tube and the inner-stage venturi tube, an inner-stage air rotational flow channel is arranged between the inner-stage venturi tube and the nozzle, and the outer-stage venturi tube and the inner-stage venturi tube are coaxially arranged. The nozzle is connected with an oil supply pipeline, an air constraint jet flow channel and a fuel oil channel are arranged in the oil supply pipeline, and swirl vanes are arranged in the air constraint jet flow channel; meanwhile, the invention further provides a gas and oil rotary mixing method of the combustor. The air constraint jet flow channel capable of being opened and closed is integrated in the oil conveying pipeline, the combustion chamber can adapt to two working states of subcritical fuel oil and supercritical fuel oil, the working range of the combustion chamber is widened, and the combustion chamber can serve aero-engines with high performance and high thrust-weight ratio.

This invention relates to planetary damping spring dampers for gearboxes. Specifically, a planetary gear arrangement includes planetary gears rotatable on planetary bearings mounted to a bracket of the planetary gear arrangement via support pins. A damping spring is disposed between the outer surface of the outer ring of the bearing and the opposing inner surface of the planetary gear, and includes an annular gap. A spring diaphragm damper is disposed between the cylindrical outer surface of the support pin and the opposing inner surface of the inner ring of the planetary bearing, and also includes an annular gap. The support pin (96) and / or the outer ring includes an oil supply hole leading to the corresponding annular gap. Gas turbine engines include planetary gear arrangements having such planetary bearings.

The invention belongs to the technical field of engines, and particularly relates to a normal-pressure oxygen supplementation device and method for a microminiature aero-engine. The normal-pressure oxygen supplementing device comprises an oxygen generator, a combustion chamber, an igniter, a flow guide assembly and an evaporation assembly, a shell of the flow guide assembly communicates with the oxygen generator, and a plurality of first flow guide holes and a plurality of second flow guide holes are formed in the first end face of the shell at intervals; the valve plate is rotationally connected into the shell, and the valve plate is switched between a first state and a second state; the evaporation assemblies are arranged in the combustion chamber and correspond to the second flow guide holes in a one-to-one mode, each evaporation assembly comprises an evaporation pipe, the evaporation pipes communicate with the corresponding second flow guide holes, one ends of the evaporation pipes communicate with the oil supply end of the engine, and the other ends of the evaporation pipes are open. Fuel oil can be evenly mixed with supplemented oxygen after being sprayed out, so that the fuel oil is fully and completely combusted, the work efficiency of an engine is improved, and the service life of the engine is prolonged.

The utility model discloses a kind of efficient energy-saving lubricating devices of air compressor, belong to air compressor technical field, this kind of efficient energy-saving lubricating device of air compressor, including air compressor, the top of air compressor one side is provided with lubricating box, the bottom of lubricating box is fixed with rectangular lower liquid pipe, the bottom of rectangular lower liquid pipe is fixed with circular liquid injection pipe, circular liquid injection pipe is connected with air compressor, the outside of circular liquid injection pipe is provided with solenoid valve;The inside of lubricating box is provided with adjustable oil injection mechanism, by the operation of transverse hydraulic cylinder and transverse drive motor, so that transverse rotating rod can move inside transverse circular pipe, can according to the real-time operating condition dynamic adjustment of air compressor injection amount, avoid excessive or insufficient oil supply, significantly reduce the friction and wear of key moving parts, prolong the service life of equipment, make air compressor operation more efficient, reduce energy consumption, reduce lubricating oil waste simultaneously, save maintenance cost.

The utility model relates to the technical field of automatic lubricating devices, and discloses an automatic lubricating device of a textile machine, which comprises a lead screw and a lead screw nut, and a basic oil injection nozzle is arranged on the lead screw nut and used for supplying oil to a bearing assembled in the lead screw nut for lubrication. The lubricating device further comprises an oil injection bottle and a controller arranged on the oil injection bottle, the oil injection bottle is in threaded connection with a threaded connection base arranged on the lead screw nut, the threaded connection base is communicated with the basic oil injection nozzle through a soft oil pipe, and therefore lubricating oil in the oil injection bottle is injected into the basic oil injection nozzle. Compared with a traditional steering engine and a traditional screw driving device, the control structure is much smaller, so that equipment can be more compact and efficient, the size of the equipment is the same, a cavity for containing oil is larger, the working noise is low, the energy consumption is lower, and single oil supply is accurate.

The invention provides an engine oil pressure control method and device, a vehicle and a storage medium, and relates to the technical field of engine lubricating systems. According to the method, on the basis of the engine oil viscosity of the engine at the current moment, the surface movement speed of each friction pair in the engine and the preset minimum oil film thickness of each friction pair, the theoretical minimum engine oil pressure of a main oil duct is calculated, the system oil supply pressure is reduced as much as possible on the premise that lubrication safety is guaranteed, the driving power of an engine oil pump is remarkably reduced, and the service life of the engine is prolonged. The fuel economy of the engine can be improved; then, the theoretical minimum engine oil pressure is adjusted in combination with future working condition information of the vehicle, the target engine oil pressure is obtained, the target engine oil pressure has perspectiveness, upcoming load changes can be responded in advance, and the pressure fluctuation problem under the transient working condition is effectively relieved; and finally, according to the deviation between the target engine oil pressure and the actual engine oil pressure of the main oil duct, the displacement of the engine oil pump is adjusted, and closed-loop accurate control over the engine oil pressure is achieved.

The present application provides a bearing electric corrosion-resistant dual-motor power assembly and an electric vehicle. The power assembly comprises two drive motors arranged adjacent to each other. A housing of the power assembly comprises a middle partition plate, and each of two opposite end surfaces of the middle partition plate comprises a bearing groove and an oil guide structure. Each bearing groove is configured to fix a motor shaft of one drive motor by means of a motor bearing. Two ends of each oil guide structure are respectively configured to be fixedly connected to the groove bottom of one bearing groove and configured to extend into a shaft hole of one motor shaft in the axial direction of the power assembly and convey a cooling liquid or lubricating oil into said shaft hole. A gap exists between the outer peripheral surface of each oil guide structure and the inner peripheral surface of the shaft hole of one motor shaft and is configured to accommodate an annular conductive structure. Each conductive structure is configured to electrically connect one motor shaft and one oil guide structure. In the power assembly provided by the present application, the structure in which the middle partition plate supplies oil to the shaft holes of the motor shafts on two sides is used to conduct shaft currents to the housing for grounding so as to protect motor bearings.