45results about How to "Solve the problem of difficult startup" patented technology

The deep cooling loop heat pipe includes main evaporator and liquid chamber connected serially via connecting pipe. The main evaporator has casing of stainless steel pipe with axial grooves in the inside surface and main tubular liquid absorbing core of sintered stainless steel powder. The liquid chamber has stainless steel wire screen filled between the right end cap and the casing. There are also capillary connecting part, which has central inside hole, is set inside the hole of the main liquid absorbing core and extends via the connecting pipe to the liquid chamber, and annular coarse stainless steel wire sheet filled between the capillary connecting part and the liquid chamber casing. The present invention can avoid reverse flow of the work medium to ensure the successful starting of deep cooling loop heat pipe, and can raised the heat transferring limit of deep cooling loop heat pipe for stable operation performance.

The invention discloses a turning radius adjusting mechanism of paddles of a vertical axis wind turbine. The paddles are distributed on the same circumference, the turning radius adjusting mechanism further comprises a power component and actuating components, the power component consists of a power component body and a vertical tube component, fan hub shells are symmetrically disposed at the upper end and the lower end of the vertical tube component, the power component body is disposed in the vertical tube component, a power device in the power component body can drive two vertical output shafts to rotate, the vertical output shafts are arranged on the upper side and the lower side of the power device respectively, one end, which is far away from the power device, of each of the two vertical output shafts extends into the corresponding fan hub shell, driving bevel gears are sleeved at both extending ends of the two vertical output shafts, and the actuating components are symmetrically arranged on the two fan hub shells and are horizontally disposed. By the aid of the turning radius adjusting mechanism, the turning radius of each paddle can be adjusted as needed, the turning radius adjusting mechanism is favorable for improving the stability of generated power of the vertical axis wind turbine, safety of the vertical axis wind turbine with high load and applicability of the vertical axis wind turbine to conditions with different wind speeds and expanding application range of the wind speed, and the shortcoming that the turning radius of a paddle cannot be adjusted by a traditional structure is overcome. In addition, the turning radius adjusting mechanism is simple in structure, convenient in manufacture and applicable to large-scale popularization and application in the field of vertical axis wind turbines, and has excellent technologic and economic benefits.

The invention discloses a diesel-type automobile fuel oil preheating device, belonging to the technical field of diesel-type automobile fuel oil preheating. The invention aims to provide the diesel-type automobile fuel oil preheating device which can effectively solve the problems of fuel oil preheating and automobile low-temperature starting, and can lower the fuel oil use cost. The diesel-type automobile fuel oil preheating device comprises a diesel-type automobile main fuel tank, and further comprises a heating fuel oil tank, heat exchangers, a fuel-outlet three-way solenoid valve and a fuel-return three-way solenoid valve, wherein the fuel-outlet three-way solenoid valve is communicated with a heating fuel oil tank fuel outlet pipe and a diesel-type automobile main fuel tank fuel outlet pipe and is connected to a diesel-type automobile main fuel outlet pipe; the fuel-return three-way solenoid valve is communicated with a heating fuel oil tank fuel-return pipe and a diesel-type automobile main fuel tank fuel-return pipe and is connected to a diesel-type automobile main fuel-return pipe; one heat exchanger is arranged in the diesel-type automobile main fuel tank; and the heat exchangers are communicated with a diesel-type automobile water tank through water conveying pipelines. The diesel-type automobile fuel oil preheating device is applicable to use on various diesel-type automobiles.

The invention discloses a fuel oil pre-heating system for a diesel type automobile, and belongs to the technical field of fuel oil pre-heating of a diesel type automobile. The fuel oil pre-heating system for the diesel type automobile can effectively realize fuel oil pre-heating and automobile low-temperature starting and operating and can lower the use cost of fuel oil. The fuel oil pre-heating system for the diesel type automobile comprises an oil supply system and a water circulation pre-heating system; the oil supply system comprises a main oil tank, an auxiliary oil tank, a two-position three-way magnetic valve, an oil outlet pipe, an oil inlet pipe and an oil return pipe, wherein the two-position three-way magnetic valve is communicated with the main oil tank, the auxiliary oil tank and the oil outlet pipe, the oil outlet pipe is communicated with the oil inlet pipe, and the oil inlet pipe and the oil return pipe pass through an automobile engine and form a loop; the water circulation pre-heating system comprises a main oil tank heating chamber, a heat exchanger, a water outlet pipe, a heating water pipe and a water return pipe, wherein the heat exchanger, the water outlet pipe, the heating water pipe and the water return pipe form a loop with a water tank of the automobile engine. The fuel oil pre-heating system is suitable for being used by various light or heavy diesel automobiles.

The invention discloses a high-pressure oil feeding pump assembly for a diesel engine common rail system. The high-pressure oil feeding pump assembly for the diesel engine common rail system comprisesa pump body part, an oil delivery pump part, an oil pumping system part, a pressure stabilizing valve part and a fuel oil metering valve part, wherein the oil delivery pump part, the oil pumping system part, the pressure stabilizing valve part and the fuel oil metering valve part are connected with the pump body part. The pump body part comprises a pump body, a driving shaft part and a tappet body part. A bearing pedestal and a tappet body installation hole are arranged in the pump body part. The driving shaft part comprises a camshaft. The tappet body part is installed in the tappet body installation hole of the pump body, and a rolling wheel on the lower portion of the tappet body part makes contact with a cam on a shaft portion shaft. The oil delivery pump part is driven by the camshaft to generate the negative pressure so as to suck diesel oil from a diesel oil tank. The pressure stabilizing valve part and the fuel oil metering valve part are connected in parallel, and the fuel oil metering valve part quantitatively conveys the low-pressure diesel oil to the oil pumping system part. The oil pumping system part enables the diesel oil metered by the fuel oil metering valve partto be pressurized and then drives the diesel oil to enter a common rail pipe. The two ends of the camshaft are connected with the bearing pedestal on the pump body and a bearing pedestal support on ashaft cover plate part through two bearings correspondingly.

The invention belongs to the field of extraction of chemical compounds, and specifically discloses an extraction tower used for ethyl vanillin. The extraction tower comprises a tower body; the side wall of the tower body is provided with a heavy liquid inlet, a light liquid inlet, a raffinate phase outlet and an extraction phase outlet; the center of the interior of the tower body is provided with a stirring shaft which is provided with a plurality of layers of swivel plates; the inner wall of the tower body is provided with a plurality of sieving plates which are in staggered arrangement with the swivel plates, wherein water wheels are coaxially arranged on the stirring shaft, and a water wheel directly faces the heavy liquid inlet. Compared with an ordinary extraction tower, the extraction tower provided by a scheme of the invention has the following advantages: the stirring shaft is in a rotating state when the heavy liquid enters the interior of the extraction tower, so good pre-stirring effects to the heavy liquid and the light liquid are obtained; meanwhile, due to the rotating state of the stirring shaft, when a motor is needed to be started, the motor can be easily started without other additional forces.

The invention belongs to the technical field of engine fuel system, and particularly relates to a fuel supply system and method for an engine. The fuel supply system for the engine comprises a main oil tank, a main fuel tank temperature monitoring unit, an external connecting oil supply control unit and an external connecting oil returning control unit. The external connecting oil supply control unit and the external connecting oil returning control unit can be electrically connected to the main fuel tank temperature monitoring unit correspondingly, and the fuel supply system further comprisesan auxiliary fuel tank. First fuel oil is stored in the main fuel tank and an auxiliary heater for heating the first fuel oil is stored in the main fuel tank, secondary fuel is stored in the auxiliary fuel tank, and the external connecting fuel supply control unit can control the main fuel tank or the auxiliary fuel tank to supply fuel to the engine fuel system. According to the use of the fuel supply system and method, the problem of difficult start-up of an engine in low temperature environment can be effectively solved, the smooth start-up and reliability of the engine can be satisfied, and the economy of the use of a vehicle can be improved.

The invention relates to an energy-saving liquid cooling system, which mainly comprises a liquid pump assembly (1), a liquid cooling pipeline (2), a temperature regulating valve (3), an air-liquid heat exchanger (4), a filter (5), an electronic device (6), a gas-liquid separator (7) and a pressurizing expansion device (8). The liquid cooling pipeline (2) is provided with an inner passage and an out passage, the outer passage is provided with a hot air intake joint (22) and an exhaust unidirectional device (23); when the liquid cooling pipeline (2) system is started at a low temperature, hot air at the cold side outlet of a precooler of an environmental control system enters the outer passage of the liquid cooling pipeline (2) with an air sandwich, to heat a coolant (21) in the inner passage. The system collects the cold side exhaust gas of the precooler, utilizes the part of heat to solve the problem that the liquid cooling system is difficult to start at a low temperature, reduces theelectric power demand of the liquid cooling system, and reduces the compensation loss of an aircraft.

The present invention relates to electricity-saving technology of various beam type oil extractor in oil field. An energy-saving startup wheel of oil field oil extractor which can prolong starting time, decrease equipped capacitor and a method of energy-saving are disclosed. The startup wheel includes: adjustable mechanical limit twist member placed in the wheel case, non-rigid connection between wheel case and electrical machine shaft. Method: computing new electrical machine minimum theoreticl horsepower by using oil extractor static twist resistance, selecting average load ratio, selecting little capacity new electrical machine with high slip ratio, computing oil extractor power regulated by flywheel; computing startup wheel outer dimension, adjusting startup wheel limit-torsional moment;determining flywheel minimum inertia to design flywheel; correcting static twist resistance chart according to increased additional weight number on the beam, verifying average load ratio of new electrical machine. Because the invention adopts startup wheel, flywheel, beam balancing and selecting corresponding new electrical machine, electricity-saving ratio lies in 30-50% is obtained in economical, maximum, safe and reliable, and comparing with the present technology, it induces the installation power reducing greatly 1 / 3-1 / 4.

The invention belongs to the technical field of engine preheating and particularly relates to a device for preheating an engine before a car is started. The device comprises a water tank and the engine. The water tank provides cooling water for the engine. The water tank is connected with the engine through a cooling water pipe, and a water circulating passage is formed. A preheater is connected to a position, close to the engine, of the cooling water pipe. The preheater is mounted in the cooling water pipe. The preheater is an electric heater. The device has the advantages that the device is added to a car water circulating system in the prior art, the problem that the car is difficult to start in cold regions in winter is solved, the engine is preheated before the car is started, hot water rises and cold water falls after heating, automatic circulation of water in the circulating pipeline is achieved, water in the water pipe can be preheated fast to provide temperature of the combustion chamber of the engine, the engine can be ignited fast and stably, smoke discharge concentration is lowered after temperature rising, and the device is reliable, time saving, labor saving, economical and environmental friendly.

The invention provides a two-dimensional comb actuator and a manufacturing method thereof. The two-dimensional comb actuator comprises a bearing substrate, a frame and a movable body. The bearing substrate is provided with first comb electrodes; the frame is provided with internal comb electrodes and external comb electrodes; the external comb electrodes are crossed with the first comb electrodes; the movable body is provided with second comb electrodes which are crossed with the internal comb electrodes; the thickness of the second comb electrodes is not equal to the thickness of the internal comb electrodes correspondingly crossed with the second comb electrodes; and the thickness of the external comb electrodes is not equal to that of the first comb electrodes correspondingly crossed with the first comb electrodes. A conductive layer is arranged on the first comb electrodes, the internal comb electrodes, the external comb electrodes and the second comb electrodes to increase a rotation angle and an available frequency range.

The invention relates to the field of speed reducers, and discloses a worm gear and worm transmission structure, a worm gear and worm speed reducer and a speed reduction motor. The worm gear and wormtransmission structure comprises a worm and a worm gear assembly. The worm gear assembly comprises a worm gear shaft, a worm gear, a gear, and a meshing delaying mechanism for delaying meshing of theworm gear and the gear, and the worm gear and the gear are arranged on the worm gear shaft in a sleeving mode. According to the technical scheme, based on the arrangement of the meshing delaying mechanism, after the worm drives the worm gear, the worm gear cannot immediately drive the gear to rotate, a certain time difference exists between the motion of the worm gear and the motion of the gear, the angular momentum of the worm gear can be improved by utilizing the time difference, and the angular momentum can be converted into impulse acting on the gear, so that the aim of overcoming the maximum static friction force in a system is achieved, and the problem of difficulty in starting the speed reduction motor is solved.

The invention discloses a control device for driving a mediate-scale heating furnace fan. The problem that a heating furnace fan is difficult to start is solved. According to the control device, a delay relay is connected to the two ends of an alternating current contactor in a traditional control device for the heating furnace fan in parallel, and a pair of normally-closed delay break contacts of the delay relay are connected with a pair of intermediate relay normally-closed contacts in parallel, wherein the pair of intermediate relay normally-closed contacts are connected in a power circuit of the alternating current contactor in series. By optimizing the control circuit, the problem that the heating furnace fan is difficult to start is solved, the heating furnace fan can be started smoothly, and operation protection on the heating furnace fan can be achieved sensitively. The control device is low in transformation cost and good in effect, can be widely applied to start motors of heating furnace fans with the motor capacity being below 120 KW, and has the advantages of being suitable for various loads, high in operation reliability, simple in structure, convenient to maintain and the like.

The invention provides special underground direct-driven discharging and extracting equipment for coal bed gas, and belongs to the technical field of mining. The equipment comprises a sleeve, a motor, a motor protector, a righting bearing component, a screw pump, a special connector, a special axial force supporting mechanism and an oil pipe, wherein the motor is arranged on the bottom part of a pitshaft; a motor output shaft is connected with an input end of a rotor of the screw pump through the motor protector and the righting bearing component; an output end of the rotor of the screw pump is connected with the special axial force supporting mechanism; the special connector consists of an internal shaft and an outer casing; a stator of the screw pump and the special axial force supporting mechanism are connected by the special connector; the oil pipe is connected between a special pithead and the special axial force supporting mechanism; the sleeve is embedded on the inner wall of the pitshaft; all constitutive elements are sheathed in the sleeve. By applying the equipment, a gap at the aspect of discharging and extracting techniques for coal bed gas highly-deviated wells and multi-branch horizontal wells is filled; compared with a traditional discharging and extracting way, the equipment realizes the multiplied increase of gas production; meanwhile, the floor area of the discharging and extracting equipment is decreased.

The invention discloses a solar fan adopting a 12V direct current motor. The solar fan comprises a fan main body and a solar cell, wherein the fan main body comprises a shell, fan blades and a three-phase brushless direct current motor; the three-phase brushless direct current motor drives the fan blade to rotate, is directly connected with the solar cell by a lead, and comprises a rotor and a stator core; multiple groups of teeth with the same size are uniformly arranged on the periphery of the stator core, the number of the teeth is an integral multiple of three and is not less than six, three-phase windings are alternatively arranged on the teeth of the stator core, a winding coil is arranged on each tooth, and each phase of winding is formed by connecting the same-phase winding coils distributed on at least two teeth in parallel. The solar fan adopts the 12V driven three-phase brushless direct current motor as power, can be directly connected with the solar cell, and does not need a booster, so the solar fan is energy-saving and environment-friendly and reduces the manufacturing cost, and the weight of the fan is reduced.

The invention discloses a low-voltage solar ceiling fan for switching a power supply through remote control. The ceiling fan comprises a fan body and a remote control device, wherein the fan body comprises a driving power supply, a three-phase brushless direct-current motor and fan blades; the driving power supply comprises two ways of input and one way of output; one way of input is connected with a commercial alternating current after voltage reduction and rectification; the other way of input is connected with a solar low-voltage battery; the output of the driving power supply is connected with the three-phase brushless direct-current motor; a switching device of remote control actions is arranged between the two ways of input of the driving power supply and the output end; and the switching device controls the output end of the driving power supply to be switched and connected between the two ways of input. According to the low-voltage solar ceiling fan, two ways of input of the driving power supply are adopted, and the ceiling fan can be connected with the commercial alternating current, and also can be directly connected with the solar low-voltage battery for electrifying; and the remote control device is used for switching the connected input of the power supply, so that the low-voltage solar ceiling fan is capable of saving energy, environment-friendly, convenient to use and practical.

The invention discloses a step heating compounding oil tank that is made up of oil pocket, electric heater and oil pipe. The oil pocket includes assistant pocket, elementary pocket, sublevel pocket that array according to the volume of the pockets. The oil outlet pipe and oil returning pipe are set on the elementary pocket, which connects to the assistant pocket by the pipe installing changing device. Connection pipes are that at the bottom of the steps of pockets. And the heaters are set inner the pockets. Heat exchanger is set inner the elementary pocket. The invention solves the problem that the 0 grade oil can not be used under low temperature condition in diesel engine oil supplying system.

The invention relates to an electronic ballast, in particular to a ballast for a low-frequency electrodeless lamp. The problem that a stable 13.5V supply voltage cannot be acquired because the supply voltage of a metal oxide semiconductor (MOS) tube drive circuit in the ballast is not sufficient when the low-frequency electrodeless lamp is started is solved. The ballast for the low-frequency electrodeless lamp comprises an electromagnetic compatibility (EMC) filter circuit, a bridge rectifier circuit, a direct-current booster circuit, the MOS tube drive circuit, an MOS tube power output circuit, a third crystal triode (BG3), a 15V third voltage-regulator tube (DW3), a fifth capacitor (C5), an eighth crystal diode (D8) and a 105 resistor (R105) and also comprises a second compound crystal triode (BG2) and a 13.5V control circuit, wherein the MOS tube drive circuit comprises an FM2822 chip (U2). The ballast for the low-frequency electrodeless lamp is simple in structure, is reasonable in design and is low in cost, and the starting performance of the electrodeless lamp is greatly improved.

The invention discloses a fuel oil pre-heating system for a diesel type automobile, and belongs to the technical field of fuel oil pre-heating of a diesel type automobile. The fuel oil pre-heating system for the diesel type automobile can effectively realize fuel oil pre-heating and automobile low-temperature starting and operating and can lower the use cost of fuel oil. The fuel oil pre-heating system for the diesel type automobile comprises an oil supply system and a water circulation pre-heating system; the oil supply system comprises a main oil tank, an auxiliary oil tank, a two-position three-way magnetic valve, an oil outlet pipe, an oil inlet pipe and an oil return pipe, wherein the two-position three-way magnetic valve is communicated with the main oil tank, the auxiliary oil tank and the oil outlet pipe, the oil outlet pipe is communicated with the oil inlet pipe, and the oil inlet pipe and the oil return pipe pass through an automobile engine and form a loop; the water circulation pre-heating system comprises a main oil tank heating chamber, a heat exchanger, a water outlet pipe, a heating water pipe and a water return pipe, wherein the heat exchanger, the water outlet pipe, the heating water pipe and the water return pipe form a loop with a water tank of the automobile engine. The fuel oil pre-heating system is suitable for being used by various light or heavy diesel automobiles.

The invention discloses an auxiliary motor starting device on a mobile platform during high load. The auxiliary motor starting device is characterized by comprising a wireless charging emission coil and a receiving coil. The auxiliary motor starting device has the advantages that the receiving coil on the mobile platform is aligned to the emission coil arranged in a working place in advance during working for wireless charging, an energy storage device discharges after being fully charged, an extra voltage is provided for starting of a motor, the extra voltage is added to a part of voltage provided by a power supply to achieve the purpose of voltage rising, so that the motor requiring relatively large starting voltage on the mobile platform during high load can normally start, and the problem of difficulty in starting the motor during high-load starting due to insufficient voltage is solved; and moreover, the auxiliary starting mode on the mobile platform during high load is convenient and rapid, the work efficiency is improved, and the starting device is low in construction and is durable.

An embodiment of the invention discloses an engine starting method and device, a vehicle and a storage medium. The method comprises the steps that a timing phase diagram corresponding to engine starting is obtained, and tooth position information of crankshaft teeth and camshaft teeth of an engine is determined according to the timing phase diagram; in the starting process of the engine, tooth missing information of the crankshaft teeth and the camshaft teeth is determined according to the detected crankshaft tooth information of the crankshaft teeth, the detected camshaft tooth information of the camshaft teeth and the tooth position information; and according to the crankshaft tooth information, the camshaft tooth information and the tooth missing information, the tooth missing position corresponding to the tooth missing information is supplemented, and after the tooth missing position is supplemented, the engine is controlled to be started. According to the technical scheme, the signal teeth corresponding to the camshaft are automatically supplemented, and quick starting of the engine is guaranteed.

The invention provides a compressor preheating control method and device, and belongs to the technical field of air conditioners. The method comprises the steps that under the conditions that an air conditioner is in a running state and the bottom temperature of a compressor is larger than or equal to the preset temperature, an outdoor fan is used for wind power generation, and a storage battery is charged; and when the air conditioner is in a heating mode and the temperature of the bottom of the compressor is smaller than the preset temperature, the compressor is preheated through electric energy of the storage battery. When the air conditioner compressor does not need to be preheated, the outdoor fan is used for wind power generation, and the obtained electric energy is stored in the storage battery; and when the compressor needs to be preheated, the compressor is preheated by utilizing the electric energy stored in the storage battery, so that the cyclic utilization of energy is realized, the emission of pollutants is reduced, and meanwhile, the problem that the compressor of the air conditioner is difficult to start in a low-temperature or ultralow-temperature environment for a long time in winter is solved.

In order to solve the problem that traditional heavy type high motor vehicles and special vehicles are difficult to start at the low temperature environment, the invention provides a hydraulic torqueconverter with a reversing dragging function. The hydraulic torque converter is characterized in that a reversing dragging device arranged inside a cover wheel is further included; the reversing dragging device comprises a reversing dragging inner ring and a second one-way clutch, the reversing dragging inner ring is arranged on an output shaft, the end, far away from the cover wheel, of the outerwall of the reversing dragging inner ring is connected with a turbine hub through splines, and the middle portion of the outer wall of the reversing dragging inner ring is fixedly connected with an inner ring of the second one-way clutch; and the outer ring of the second one-way clutch is fixedly connected with the cover wheel, when power is input from the output shaft, the second one-way clutchis located in the locking state, and when the power is input from the cover wheel, the second one-way clutch is in the surpass state. Torque of the hydraulic torque converter can be transmitted to thereversing dragging inner ring from the output shaft and is then transmitted to the second one-way clutch through the reversing dragging inner ring, the second one-way clutch then transmits the torqueto the cover wheel, the toque is finally transmitted to an engine from the cover wheel to drive the engine to rotate, and dragging starting or sliding starting can be achieved.