56results about How to "Increase the charge factor" patented technology

The invention relates to a multifunctional biological solid fermentation tank. The main body structure of the fermentation tank is a horizontal propeller, and spiral auger propeller blades are installed below the tank bottom. An auger is directly communicated with steam for sterilizing form the bottom of the tank and communicated with air for cooling, a spray tube on the upper part of the tank body sprays bacterial liquid for inoculation and can also spray water mist for humidity regulation, and thus, uniform inoculation and humidity control can be realized. The unique tank body horizontal type propeller and the auger coordination system below the tank body are utilized, and the circular flowing and the thorough mixing of a solid material in the tank body during fermentation are realized by controlling the rotating speed and the rotating direction; stirring nonuniformity caused by using a motor to rotate forwards or backwards repeatedly is avoided, automatic material discharge can be realized after fermentation, and material discharge is clean and complete. The operations of sterilization, cooling, inoculation, fermentation, temperature control, humidity control, ventilation, vacuum drying and the like required by solid fermentation can all be completed in the biological solid fermentation tank. The biological solid fermentation tank has the advantages of hardly no bacterial contamination, small occupied space, high automation degree, labor saving, investment saving and the like.

The invention relates to a preparation method of rhamnolipid biological fermentation liquid. The method comprises the following steps: extracting and purifying Pseudomonas aeruginosa obtained from petroleum-contaminated soil, and obtaining Pseudomonas aeruginosa VTS-1 (Pseudomonas sp. -1) The preservation number is: CGMCC2200, and the specific fermentation and cultivation steps are as follows: A. Strain VTS-1 is cultured in shake flasks; B. Primary fermentation cultivation; C. Secondary fermentation cultivation; D. Fermentation cultivation. The process of the method has the advantages of high yield, high efficiency, high loading coefficient, short fermentation cycle, simple process, reduced overall product cost, and is completely suitable for industrial production, and has played a role in the promotion and large-scale application of rhamnolipid biosurfactants. important role.

This invention relates to a variable stroke engine, in addition to its working method, which belongs to vehicle engine technique field. The engine comprises six cylinders, EGR, exhaust-gas turbocharger system, four strokes discharge distributing valve, exhaust duct, bent axle piston and electrical controlling unit. when working, it needs to decide whether the two stroke cylinders join to work with the jar cutting technique according to different power, making the engine switch in different working condition; the six cylinders will bedding-in work through each inlet distribution valve to increase pressure and power output. Said invention can be used in transporting vehicle such as tank armored vehicle, machineshop truck needs to provide large power output and so on.

The invention relates to a continuously adjustable mechanical hydraulic valve lift device which belongs to the technical field of internal combustion engine. The continuously adjustable mechanical hydraulic valve lift device comprises a valve cam, a valve, a valve spring, a plunger piston adjusting arm, a plunger piston spring base, a tappet plunger piston, a plunger piston spring, a tappet plunger barrel, a retaining nut, a low pressure oil cylinder, a first gasket, a second gasket, an executing plunger piston and an executing plunger barrel. The lift range is decided by the relative position of the tappet plunger piston and a first oil hole at the tappet plunger barrel. The symmetrical plane of the plunger piston adjusting arm is coincident with the symmetrical plane of a diclinic section at the head of the tappet plunger piston, and the symmetrical plane of the plunger piston adjusting arm along the axial line is considered as a reference plane. When maximum lift is required, the plunger piston adjusting arm is rotated to ensure that the reference plane is parallel with the axial line of the first oil hole. When minimum lift is required, the plunger piston adjusting arm is rotated to ensure that the reference plane is vertical to the axial line of the first oil hole. When medium lift is required, the plunger piston adjusting arm is rotated to ensure that the reference plane and the axial line of the first oil hole form any angle between 0 to 90 degrees. The device has simple structure and can adjust valve lift, valve right timing and duration continuously.

The invention relates to a process for preparing a viable bacillus megaterium preparation. According to the process, after bacillus megaterium undergoes first-stage germ amplification culture and second-stage germ amplification culture, the bacillus megaterium is inoculated to a fermentation culture medium for culture, and the number and conversion ratio of bacilli is increased through feeding a supplement carbon source during fermentation, so that the unit yield is increased remarkably, and the unit cost is reduced; at the end of fermentation, fermentation liquor is concentrated with a vacuum film concentrator, so that soluble synergistic substances, growth promoting substances and bacteriostatic active substances can be effectively recovered from the fermentation liquor; the concentrated fermentation liquor is subjected to drying and granulating by multi-level low-temperature spray-fluidized drying equipment, granules are subjected to sorting, fine powder gathered by a cyclone separator returns and is granulated again, and then, a bacillus megaterium product, of which the CFU of powder per gram is not less than 8.0*10<10>, is obtained; exhaust gas is treated and is discharged after reaching standard. The process has the advantages that effective substances in the fermentation liquor can be reserved to the maximum, the quality of the product is high, the equipment utilization ratio is high, the retention of biological activity is relatively good, waste gas and waste water are discharged after reaching standard, and large-scale industrial production can be achieved.

The invention discloses a process for improving fermentation conversion rate of an enzyme preparation, which comprises steps of strain culture of enzyme-producing strains, aerobic fermentation culture and extraction and purification of the enzyme preparation, wherein oxygen-rich sterile air is introduced in a fermentation tank culture process of the aerobic fermentation culture step, or oxygen-rich sterile air is introduced in a seed tank culture process of the strain culture step and a fermentation tank culture process of the aerobic fermentation culture step. When the process meets the oxygen requirement of the strains, the process can improve the activity of the fermentation enzyme by over 10 percent, shorten the fermentation period by about 20 percent under the condition of smaller ventilation ratio, increase the charging coefficient of a reaction tank at the same time, improve the yield of the enzyme preparation by about 50 percent, and save the power consumption of ton product under the equal condition by about 40 percent compared with the power consumption without adopting the oxygen-rich sterile air so as to greatly improve the utilization rate of energy.

The invention relates to the technical field of internal combustion engines, in particular to a method for restraining the supercharge gasoline engine super detonation through double-fuel injection. According to the method for restraining the supercharge gasoline engine super detonation through double-fuel injection, gasoline is injected in an intake channel of an engine, alcohol fuel is injected in a combustion chamber one or more times, the alcohol fuel with high latent heat of vaporization is injected in intake stroke and can lower the intake temperature, the charging quantity coefficient is increased, and the dynamic property is improved; due to the compression stroke injection, the temperature of mixed gas at a compression terminal can be reduced, and premature combustion is effectively restrained; injection is conducted in the combustion process, fuel layered mixed gas can be formed, and the spreading route of detonation waves is cut off; the super detonation of a supercharge small-displacement gasoline engine can be effectively restrained through one or more times of injection, and an important support is provided for energy conservation and emission reduction of the engine. Meanwhile, only a set of intake channel injection nozzle needs to be additionally added to an existing supercharge gasoline engine, cost is low, upgrading of an existing engine product technology is forcefully supported, and the industrial prospect is good.

The invention relates to the technical field of tobacco processing, and discloses a new system suitable for solid-state fermentation of tobacco stems and a corresponding solid-state tobacco stem fermentation method. Specifically, the tobacco stems are added in a drum tank, a certain quantity of hot water is added in the drum tank while the drum tank rotates, and the tobacco stems absorb water for 30 minutes; after being cooled down to room temperature, the tobacco stems containing water are added in another drum tank, and a certain quantity of microbial seed liquid is added into the other drum tank to realize microbial inoculation while the other drum tank rotate; and after inoculation, the tobacco stems are fed in cultivating frames, the cultivating frames are stacked on a movable storage cage in a certain mode so as to vibrate and increase feeding rate, the storage cage is placed in a fermentation chamber or a fermentation container to realize solid-state fermentation, ventilation is carried out according to needs, and after fermentation is finished, microbial spore is sucked. The new system suitable for solid-state fermentation of tobacco stems and the corresponding solid-state tobacco stem fermentation method can increase mechanical level and automatic level of a production process of solid-state fermentation of the tobacco stems, increase spatial feeding coefficients of solid-state fermentation materials, and accordingly improve production efficiency of solid-state fermentation of the tobacco stems.

The invention discloses a gasoline engine EGR stratified charge system based on a flow guiding plate, and belongs to the technical field of engines. An exhaust pipe is fixedly connected with an intake manifold through a bypass pipe, an EGR valve, an EGR cooler and an EGR loop. An airflow cavity in the air inlet side of a cylinder cover part is respectively and correspondingly connected with an airflow cavity of an air inlet diverting cavity part, an air inlet of the cylinder cover part corresponds to branch pipes of the air inlet diverting cavity part, a throttle valve is fixedly connected with an intake manifold hole through the intake manifold, and the exhaust branch pipes of the exhaust pipe are correspondingly connected with four exhaust ways of the cylinder cover part respectively. Waste gas and fresh air can be prevented from being early mixed outside a combustion chamber and can also be prevented from being accumulated and mixed when an air inlet door is closed, the equipressure air intake of the fresh air and the pressure can be achieved, the mixed degree of the fresh air and the waste gas can be reduced, the load control of an engine can be achieved, the circulation thermal efficiency of a gasoline engine is improved, high EGR efficiency can be achieved, and the combustion economical efficiency of the gasoline engine is effectively improved.

The invention relates to an air-cylinder-exterior cold water and an air-cylinder-interior hot water integrated double injection diesel engine structure. The air-cylinder-exterior cold water and the air-cylinder-interior hot water integrated double injection diesel engine structure includes a diesel engine body, an inlet manifold, an exhaust manifold, an air-cylinder-interior sprinkler and an oil atomizer which are arranged in the diesel engine body, a high pressure water pump unit which communicates with the air-cylinder-interior sprinkler, an air-cylinder-exterior sprinkler which is arrangedin the inlet manifold, a low pressure water pump unit which communicates with the air-cylinder-exterior sprinkler, a heat exchanger which is arranged between the low pressure water pump unit and the high pressure water pump unit, and an electronic controller which is electrically connected with the oil atomizer, the air-cylinder-interior sprinkler, the high pressure water pump unit, the air-cylinder-exterior sprinkler and the low pressure water pump unit. Compared with the prior art, according to the air-cylinder-exterior cold water and the air-cylinder-interior hot water integrated double injection diesel engine structure, hot water sprayed in the air cylinder is rapidly vaporized and the energy is absorbed, the temperature in the air cylinder nearby the combustion top dead center can belowered, and the emission of NOx can be reduced; cold water is sprayed to the inlet manifold at the same time, heat energy is absorbed through evaporation of water, the gas temperature entering the air cylinder is decreased, and the air inlet density is increased; and the charging efficiency is increased, the output per liter of the diesel engine is improved, and the dynamic property is improved.

The invention relates to a natural gas engine structure for mixed double-injection of cylinder outer cold water and in-cylinder hot water. The natural gas engine structure comprises a natural gas engine body, an air inlet manifold, an exhaust manifold, a natural gas injector, a spark plug, an in-cylinder water sprayer, a high-pressure water pump unit, a cylinder outer water sprayer, a low-pressurewater pump unit, a heat exchanger and a electronic controller; and the in-cylinder water sprayer is arranged in the natural gas engine body, the high-pressure water pump unit communicates with the in-cylinder water sprayer, the cylinder outer water sprayer is arranged in the air inlet manifold, the low-pressure water pump unit communicates with the cylinder outer water sprayer and the electroniccontroller is electrically connected with the natural gas injector, the spark plug, the in-cylinder water sprayer, the high-pressure water pump unit, the cylinder outer water sprayer and the low-pressure water pump unit. Compared with the prior art, the natural gas engine structure has the advantages that hot water sprayed in a cylinder is used for rapidly vaporizing to absorb heat, so that the temperature in the part, close to a combustion top dead center, of the cylinder is reduced, and the generation of knocking is inhibited; meanwhile, the heat for heating the water comes from recovering tail gas energy by a exchanger, so that the working medium in the combustion process is increased, the heat loss is reduced, and the heat efficiency of the natural gas engine is improved.

The invention relates to a cylinder interior and exterior cold water mixing double spraying natural gas engine structure. The cylinder interior and exterior cold water mixing double spraying natural gas engine structure comprises a natural gas engine body, an inlet manifold, an exhaust manifold, a natural gas injector, a sparking plug, a cylinder interior water spraying device, a high-pressure water pump unit, a cylinder exterior water spraying device, a low-pressure water pump unit and an electronic controller, wherein the sparking plug and the cylinder interior water spraying device are arranged in the natural gas engine body; the high-pressure water pump unit is connected to the cylinder interior water spraying device; the cylinder exterior water spraying device is arranged in the inletmanifold; the low-pressure water pump unit is connected to the cylinder exterior water spraying device; and the electronic controller is electrically connected to the natural gas injector, the sparking plug, the cylinder interior water spraying device, the high-pressure water pump unit, the cylinder exterior water spraying device and the low-pressure water pump unit. Compared with the prior art,the cylinder interior and exterior cold water mixing double spraying natural gas engine structure has the beneficial effects that the purposes of improving a power performance, economical efficiency and an emission performance can be achieved simultaneously by arranging the two water spraying devices in a cylinder and on the inlet manifold; the heat efficiency and power per liter of a natural gasengine can be improved; the emission of nitrogen oxide is reduced; and the engine knocking can be effectively inhibited.

The present invention discloses a four-stroke piston internal combustion engine. It includes cylinder body, cylinder cap, piston and connecting rod. Said invention also provides their connection relationship and the working principle of said four-stroke piston internal combustion engine. Said invention can obtain three effects of raising engine powder, improving smoke-discharging condition and saving fuel.

The invention relates to a cylinder inside and outside cold water mixed double injection type diesel engine structure. The structure comprises a diesel engine body, an inlet manifold, an exhaust manifold, an oil sprayer, a cylinder inside water sprayer arranged in the diesel engine body, a high-pressure water pump unit communicating with the cylinder inside water sprayer, a cylinder outside watersprayer arranged in the inlet manifold, a low-pressure water pump unit communicating with the cylinder outside water sprayer, and an electronic controller which is electrically connected with the oilsprayer, the cylinder inside water sprayer, the high-pressure water pump unit, the cylinder outside water sprayer and the the low-pressure water pump unit. According to the structure, compared with the prior art, the cold water sprayed inside a cylinder is used to absorb the heat, the temperature of the part, close to the top dead center, in the cylinder is reduced, the emission of NOx is reduced,meanwhile, as an additional working medium, the heat efficiency of the diesel engine is remarkably improved; and in addition, the water is sprayed in the inlet manifold, the heat is absorbed by usingevaporation of the water, the temperature of the gas to be fed into the air cylinder is reduced, the gas inlet density is increased, the volumetric efficiency is increased, the volume power of the diesel engine is improved, and the power performance is improved.

The invention relates to a cylinder exterior cold water and cylinder interior hot water mixing double spraying gasoline engine structure. The cylinder exterior cold water and cylinder interior hot water mixing double spraying gasoline engine structure comprises a gasoline engine body, an inlet manifold, an exhaust manifold, a gasoline injector, a sparking plug, a cylinder interior water spraying device, a high-pressure water pump unit, a cylinder exterior water spraying device, a low-pressure water pump unit, a heat exchanger and an electronic controller, wherein the cylinder interior water spraying device is arranged in the gasoline engine body; the high-pressure water pump unit is connected to the cylinder interior water spraying device; the cylinder exterior water spraying device is arranged in the inlet manifold; the low-pressure water pump unit is connected to the cylinder exterior water spraying device; and the electronic controller is electrically connected to the gasoline injector, the sparking plug, the cylinder interior water spraying device, the high-pressure water pump unit, the cylinder exterior water spraying device and the low-pressure water pump unit. Compared withthe prior art, the cylinder exterior cold water and cylinder interior hot water mixing double spraying gasoline engine structure has the beneficial effects that heat is absorbed by utilizing the rapidvaporization of hot water sprayed into a cylinder; the temperature of the cylinder interior nearby a burning top dead center is reduced; the generation of knockings and super knockings during low speed and heavy duty operations is inhibited; meanwhile, the heat for heating water comes from the energy of tail gases recycled by the heat exchanger; the improvement of working mediums for applying work in a burning process is realized; the loss of heat is reduced; and the heat efficiency of the gasoline engine is improved.

The invention relates to a cylinder interior and exterior cold water mixing dual-spraying gasoline engine structure which comprises a gasoline engine body, a gas inlet manifold, a gas exhaust manifold, an oil sprayer, a sparking plug, a cylinder interior water sprayer, a high-pressure water pump unit communicating with the cylinder interior water sprayer, a cylinder exterior water sprayer arrangedin the gas inlet manifold, a lower-pressure water pump unit communicating with the cylinder exterior water sprayer, and an electronic controller, wherein the gas inlet manifold and the gas exhaust manifold are arranged on the gasoline engine body, and the sparking plug and the cylinder interior water sprayer are arranged in the gasoline engine body. Compared with the prior art, cold water sprayedinto a cylinder is utilized to absorb heat, the temperature, nearby the burning upper dead center, in the cylinder is decreased, the knocking trend is inhibited, and meanwhile, the cold water servesas an extra working medium, so that the heat efficiency of a gasoline engine is improved, and fuel economy and emission performance are improved; and water is sprayed in the gas inlet manifold, heat is absorbed through evaporation of the water, the temperature of gas entering the air cylinder is decreased, the gas inlet density is increased, charging coefficients are increased, thus the power perliter of the gasoline engine is improved, and power performance is improved.

The invention relates to a process for preparing a viable bacillus firmus preparation. According to the process, after bacillus firmus undergoes first-stage germ amplification culture and second-stage germ amplification culture, the bacillus firmus is inoculated to a fermentation culture medium for culture, and the number and conversion ratio of bacilli is increased through feeding a supplement carbon source during fermentation, so that the unit yield is increased remarkably, and the unit cost is reduced; at the end of fermentation, fermentation liquor is concentrated with a vacuum film concentrator, so that soluble synergistic substances, growth promoting substances and bacteriostatic active substances can be effectively recovered from the fermentation liquor; the concentrated fermentation liquor is subjected to drying and granulating by multi-level low-temperature spray-fluidized drying equipment, granules are subjected to sorting, fine powder gathered by a cyclone separator returns and is granulated again, and then, a bacillus firmus product, of which the CFU of powder per gram is not less than 1.0*10<11>, is obtained; exhaust gas is treated and is discharged after reaching standard. The process has the advantages that effective substances in the fermentation liquor can be reserved to the maximum, the quality of the product is high, the equipment utilization ratio is high, the retention of biological activity is relatively good, waste gas and waste water are discharged after reaching standard, and large-scale industrial production can be achieved.