32results about How to "Good scavenging effect" patented technology

It is possible to provide a fuel cell system capable of drying a fuel cell in a short time after a system stop instruction is issued. The fuel cell system includes a control device controlling execution of a normal operation and a dry operation which reduces the water content of the fuel cell as compared in the normal operation. The control device executes the dry operation prior to the system stop instruction so that the water content of the fuel cell is reduced as compared to the normal operation upon a system stop instruction. The control device may execute the dry operation before the system stop instruction when the temperature of the fuel cell at the system stop or the next system start is expected to be a predetermined low temperature.

The invention discloses antioxidation bioactive peptide and a method for making the same. The product is made through the following steps that: microbial bacillus natto and corn protein powder are respectively used as strain and a raw material, which undergo liquid culture; and fermentation broth is separated through ion exchange chromatography, gel chromatography, reversed phase chromatogram and electrophoresis. The molecular weight of the product is between 20,100 and 31,000 and the five amino acid sequences at an N terminal are K-V-T-Y-H with the antioxidation activity reaching to 236.68U / mL. Moreover, the product has higher antioxidation activity, and pure product can meet the requirements of structural and physical property measurements of antioxidation bioactive peptide, activity and toxicological experiments as well as large-scale application such as therapy and cultivation; because antioxidation active material has strong cleaning action on superoxide anion free radical and hydroxyl free radical and can remarkably inhibit the overoxidation reaction between red blood cell and the lipid of liver, heart and brain tissue, the product has functions such as disease prevention and aging resistance and can be further developed into additives of products such as medicine and cosmetic.

The invention discloses a soil remediation agent used for heavy metal pollution and a preparation method thereof. The agent is prepared from, by weight, 45-64 parts of clay mineral, 24-33 parts of straw, 10-14 parts of chitosan, 5-8 parts of alfalfa, 6-9 parts of poly-diallyldimethylammonium chloride, 8-15 parts of water-soluble polyvinyl alcohol, 1.5-3 parts of guar gum, 4-6 parts of sodium carbonate, 5-10 parts of metal oxide and 2-5 parts of sodium humate. The sources of raw materials are diversified, and under the synergistic effect of each raw material, a finished product prepared according to the method can achieve a great function of removing mercury, chrome, lead and other heavy metal ions in the soil through flocculation, adsorption and other means without causing soil hardening and has a wide application prospect.

The present invention relates to a mesoporous silica / ceria-silica composite and a method for preparing a mesoporous composite and, more specifically, to a mesoporous silica / ceria-silica composite which is composed of mesoporous silica having a hexagonal or cubic structure and ceria having a hexagonal structure provided on a surface and pores of the mesoporous silica, the oxidation state of the ceria being Ce4+ and Ce3+.

The invention relates to a air inlet device with two air inlet channels for a two-stroke engine, which comprises an air inlet piston (1), a cylinder sleeve (3) and an exhaust piston (6), wherein the air inlet piston (1) and the exhaust piston (6) are arranged in the cylinder sleeve (3); an annular air inlet (2) and an annular exhaust opening (5) are circumferentially arranged on the excircle of the cylinder sleeve (3); double exhaust channels (7) are arranged on the annular exhaust opening (5); an oil sprayer installation opening (4) is arranged on the cylinder sleeve (3); the air channel cross-sectional area shrinkage rate of the double exhaust channels (7) is 10-12mm<2> / mm; and the fresh air is charged from both ends of double air inlet channels (7). The invention has the advantages of improving air inlet amount, reducing the pressure loss, preventing the problem of airflow congestion caused by overlarge initial airflow speed and ensuring the formation of isobaric airflow in the air channel.

The invention relates to a beauty-maintaining face applying cream containing a saussurea involucrate extract. The beauty-maintaining face applying cream is prepared from an antioxidant composition and auxiliary materials, wherein the antioxidant composition is prepared from the following components in parts by weight: 0.1-5 parts of the saussurea involucrate extract, 0.1-2 parts of carnosine and 0.1-2 parts of glutathione; and the auxiliary materials are more than three of ethyl alcohol, sodium chloride, propylene glycol, glycerol, apricot kernel oil, polyglycerin oleate, avocado oil, silicone oil, lanolin, hydrogenated castor oil, PEG-100 stearate, hexadecanol, caprylic acid / caprin, diglycol monostearate, vaseline, beewax or water. The antioxidant composition is capable of resisting ultraviolet radiation, clearing free radicals, and playing a role in delaying skin aging when being applied to the face applying cream.

The invention relates to a fuel preparation and supply system and method for an active pre-combustion chamber. The system mainly comprises a conventional fuel supply system and a fuel-air mixed gas preparation and supply system; the conventional fuel supply system comprises an oil tank, a fuel oil pipeline, a low-pressure oil pump, a high-pressure oil pump, an oil nozzle, a combustion chamber andan oil tank one-way valve; and the fuel-air mixed gas preparation and supply system comprises an oil tank, a fuel oil pipeline, a low-pressure oil pump, an oil nozzle, a premixing chamber, a gas pump,a pressure regulating valve, a fuel gas nozzle, a premixing chamber spark plug, a combustion chamber, a premixing chamber oil return one-way valve, a premixing chamber gas inlet one-way valve and a premixing chamber one-way valve. The invention further discloses a fuel preparation and supply method for the active pre-combustion chamber. The fuel preparation and supply system for the active pre-combustion chamber is simple in structure, and meanwhile the effects of optimizing combustion, improving emission, saving fuel and the like can be achieved.

The invention discloses a wild boar water bath device for animal husbandry production, and relates to the technical field of agriculture. In order to solve the problems that dirt such as soil is carried by wild boars when the wild boars return to a breeding house, internal environment pollution is caused, bacteria and mosquitoes are bred, and growth of the wild boars is affected, the device specifically comprises a sewage pool, side plates are fixedly installed at the two sides of the top of the sewage pool, a shed cover is fixedly installed between the top ends of the two side plates, connecting frames are fixedly installed at the inner sides of the two side plates, and a plurality of chain wheels are installed between the two side plates through bearings. According to the device, a cleaning roller is used for rubbing a boar body to clean the skin of the boar, positive significance is brought to health of the wild boar, the cleaning roller rotates when being rubbed, force is stored through a clockwork spring coil, rotating reset is conducted when the rubbing force is reduced, and the scrubbing effect on the skin of the wild boar is improved; and parasites, soil and the like on theskin surface of the wild boar are well removed.

The invention discloses a special cleaning agent for looms. The cleaning agent comprises the following components in parts by weight: 20-30 parts of sodium dodecyl benzene sulfonate, 3-6 parts of sodium chloride, 20-30 parts of nonyl phenol polyoxyethylene, 5-8 parts of cocoanut oil diethanolamine, 10-20 parts of stearic acid, 10-20 parts of ethanol, 3-6 parts of wool fat, 30-50 parts of kerosene and 2-4 parts of cresol. The cleaning agent is prepared by mixing and dissolving anionic surfactants, nonionic surfactants, solvents and degreasing agents which are used as raw materials; and the cleaning agent has powerful removing effect on dirt firmly adsorbed on the metal surfaces, which can not be realized by other common cleaning agents.

The invention discloses a single cylinder two-stroke internal-combustion engine with a crank circular slide block. A crank circular slide block mechanism of the internal-combustion engine comprises a crank shaft, a circular slide block and a piston corresponding to the circular slide block; the piston is a double-acting piston of which both ends are provided with a working head respectively, and the piston is arranged in an air cylinder; the first working head at one end of the piston is used as a piston head of the internal-combustion engine, and a top surface of the first working head, an air cylinder inner wall and a cylinder cover arranged at one end of the air cylinder enclose to form a working cylinder; and the second working head is used as a scavenging piston head, and a top surface of the second working head, the air cylinder inner wall and a valve plate arranged at the other end of the air cylinder enclose to form a compressor air cylinder. In the single cylinder two-stroke internal-combustion engine with the crank circular slide block, the unique double-acting piston special for the crank circular slide block mechanism is utilized, so that the piston can compress air and provide scavenging air flow when reciprocating and the integration of a compressor and the internal-combustion engine is realized; and the structural complexity is reduced obviously under the condition of the same scavenging effect.

The invention discloses an anti-ultraviolet skin care product, and belongs to the technical field of daily chemicals. The anti-ultraviolet skin care product is prepared from, by weight, 12-20 parts of oil phase, 6-11 parts of water phase, 2-6 parts of non-ionic emulsifier, 0.5-2.5 parts of callicarpa nudiflora extract, 5-30 parts of cerium oxide sol, 0-5 parts of ultrafine powder, 37.5-63.5 parts of deionized water and 0.01-0.5 part of spice. Common cerium oxide exits in a powder shape, when skin care product raw materials are added, large-amount and serious agglomeration is likely to be caused, the function of cerium oxide is lowered, the anti-ultraviolet capability of the skin care product is weakened, and the cerium oxide sol has incomparable skin care application advantages compared with common cerium oxide powder.

The invention belongs to the technical field of food processing, and particularly relates to a making method of a sports beverage capable of eliminating free radicals. The making method comprises thefollowing steps of weighing edible bran powder, potassium dihydrogen phosphate and magnesium sulfate, performing uniform mixing, adding water, performing uniform stirring, performing sterilization, performing cooling, performing inoculation with aspergillus oryzae liquid seeds, performing uniform stirring to obtain a mixture, levelly laying the mixture on a pan, putting the pan in a climatic cabinate, and performing culturing so as to obtain aspergillus oryzae solid koji; adding sterile water to the aspergillus oryzae solid koji, performing uniform stirring, performing uniform stirring, and performing filtration so as to obtain mixed enzyme liquid and filter residues; adding clean water to the filter residues, performing uniform stirring, performing sterilization, performing cooling, performing inoculation with lactobacillus plantarum freeze-dried powder, performing anaerobic fermentation, then performing sterilization, performing cooling, adding mixed enzyme liquid, and performing enzymolysis so as to obtain enzymatic hydrolysate; and filtering the enzymatic hydrolysate, performing blending, performing filling, performing sealing, and performing sterilization so as to obtain finished products. After the sports beverage is drunk, too many free radicals generated in bodies of people after sports can be well eliminated, and damage of the free radicals to human bodies can be eliminated.

The invention discloses a cleaning device and cleaning equipment. The cleaning device comprises a main shaft, a cleaning assembly and a supporting assembly. Cleaning brushes are detachably connected with the main shaft, and the cleaning brushes of different specifications can be replaced according to pipelines of different pipe diameters. Supporting legs can rotate relative to the main shaft, and the supporting legs can support the main shaft in the pipelines of different pipe diameters by adjusting the rotating angles between the supporting legs and the main shaft. Therefore, the cleaning device is simple in structure and low in cost, can flexibly adapt to the pipelines of different pipe diameters, and can be widely applied to cleaning of the pipelines of different pipe diameters. In addition, compared with a cleaning device for dredging through high-pressure water flow, the cleaning brushes in the cleaning device can physically brush away and dredge the inner walls of the pipelines, and can have a strong removing effect on some stubborn pipeline inner wall attachments. The cleaning equipment comprises the cleaning device, and the beneficial effects of the cleaning device can be achieved.

The invention discloses a micro-free piston power unit with a self-pressurized type uniflow scavenging structure. The micro-free piston power unit comprises a gas cylinder, a stator winding and a rectifier, the stator winding is wound around the outer surface of the gas cylinder, and the rectifier is connected with the stator winding; the gas cylinder is internally provided with two cavities and an exhaust chamber, the exhaust chamber is formed between the two cavities, partition plates are arranged between the two ends of the exhaust chamber and the two cavities, and the exhaust chamber is provided with an exhaust opening; the two cavities are symmetrically distributed through the center axis of the exhaust opening, a gas inlet is formed in the upper end of each cavity, and a self-pressurized gas inlet channel is formed in the inner bottom of each cavity; and two magnetic pistons are located in the two cavities correspondingly, thus the cavities are internally divided into scavengingchambers and combustion chambers, a piston connecting rod penetrates through the partition plates to connect the two magnetic pistons, and the piston connecting rod is provided with an axial groove structure. According to the self-pressurized type uniflow scavenging structure, the structure design is simple, the gas inlet pressure is increased through the self operation process, meanwhile, the position of a waste gas outlet is changed to form the uniflow scavenging mode, and the scavenging effect of the micro power unit is improved advantageously.

The invention discloses a compression ignition type two-stroke aviation piston engine and an air passage thereof. The compression ignition type two-stroke aviation piston engine comprises at least one set of air inlet and exhaust pipes, wherein each set of air inlet and exhaust pipes comprises a first air inlet branch pipe, a second air inlet branch pipe and an exhaust branch pipe which are used for being connected with a cylinder sleeve of an engine cylinder block respectively; a first air inlet outlet of each first air inlet branch pipe is at least partially aligned with an exhaust inlet of each exhaust branch pipe; and a second air inlet outlet of each second air inlet branch pipe is formed in the side portion of a connecting line between each first air inlet outlet and each exhaust inlet. The first air inlet branch pipes and the second air inlet branch pipes are used for jointly supplying fresh air to the cylinder block, so that the inflation efficiency is improved; the second air inlet outlets are formed in the side portions of the connecting lines between the first air inlet outlets and the exhaust inlets, namely, transverse air inlet is increased, the scavenging effect is improved, the movement intensity of airflow in the cylinder block is increased; and the first air inlet outlets of the first air inlet branch pipes are at least partially aligned with the exhaust inlets of the exhaust branch pipes, so that the movement intensity of the airflow in the cylinder block is further improved.

The invention belongs to the field of engines, in particular to a motorcycle or automobile engine supercharger. The invention includes an air intake pipe and an exhaust pipe installed at both ends of the casing, an eccentric cylindrical rotor is installed in the casing, a coupling is installed at one end of the rotor, the blades are loosely installed on the rotor cylinder, and several long blades are opened on the rotor cylinder Slot, the strip-shaped blade is inserted in the blade slot, the inner end of the blade slot is clockwise deflection angle a relative to the rotor axis, wherein the deflection angle a is 30° to 32°. The cross-sectional area of ​​the air inlet of the supercharging device is larger than that of the exhaust port, and the air pressure of the gas at the exhaust port increases to achieve the purpose of blade scavenging and supercharging. The special angle of the blade groove can improve the friction and vibration between the blade and the shell, and enhance the scavenging effect. The above-mentioned device has simple structure, small volume and good supercharging effect, and is suitable for supercharging engines of automobiles and motorcycles.

The invention discloses a piston for a double-stroke crank round sliding block internal combustion engine, which comprises a crown part and a piston seat, wherein the crown part comprises a piston top, a piston ring band and a baffle plate which is extended downwards from the piston ring band and is used for shading an air port; the outer diameter face of the baffle plate is matched with the inner diameter face of a cylinder and is unfolded at a set angle in the circumference direction, and the angle can meet the requirement of shading the air port; a round sliding block accommodating hole for mounting a round sliding block is formed on the piston seat; two guide side plates which are extended downwards in the axial direction are symmetrically arranged on the piston ring band; and the outer diameter faces of the guide side plates can be matched with the inner wall of the cylinder. Compared with the prior art, the piston provided by the invention is provided with the baffle plate for shading the air port, and the baffle plate is only extended at a certain angle in the circumference direction and can be designed in a thinner mode, so that the quality of the piston cannot be obviously improved by the baffle plate, and the crank round sliding block engine has the advantage of keeping relatively low reciprocation inertia. In a preferable scheme, scavenging efficiency is improved by a specially arranged scavenging piston.

A selenium-enriched tea polyphenol selenide, has such a structure as:wherein R1 is alkali metal ion and selenium coordination complex, and R2═H, orA method for preparing the selenium-enriched tea polyphenol selenide, comprises: A) reacting tea polyphenol with at least one inorganic metallic alkali, to obtain tea polyphenol hydroxy acid salt; and B) reacting the tea polyphenol hydroxy acid salt with SeO2, to obtain the selenium-enriched tea polyphenol selenide.

The invention discloses a scavenging system of a two-stroke engine. The system comprises a cylinder provided with a combustion acting chamber, a crankshaft box provided with a crankshaft chamber, a piston and a crankshaft assembly, wherein a fresh mixed air inlet and an exhausting port are formed in the cylinder; a thick mixed air scavenging channel and a thin mixed air scavenging channel are arranged in the crankshaft chamber; the thick mixed air scavenging channel is provided with a first air inlet and a first air outlet; the thin mixed air scavenging channel is provided with a second air inlet and a second air outlet; the thick mixed air scavenging channel and the thin mixed air scavenging channel are arc-shaped and clung to the inner walls of two sides of the crankshaft chamber; a first scavenging port and a second scavenging port are formed in the combustion acting chamber; the first scavenging port is far away from the exhausting port and communicates with the first air outlet; the second scavenging port is close to the exhausting port and communicates with the second exhausting port; a first oil stopping rib and a second oil stopping rib are correspondingly arranged on the thick mixed air scavenging channel and the thin mixed air scavenging channel. According to the system, a layered scavenging state can be formed, so that the content of harmful components in exhaust gas can be reduced, and as a result, the environment can be protected; the consumption of oil in use can be saved.

The invention discloses a piston for a double-stroke crank round sliding block internal combustion engine, which comprises a crown part and a piston seat, wherein the crown part comprises a piston top, a piston ring band and a baffle plate which is extended downwards from the piston ring band and is used for shading an air port; the outer diameter face of the baffle plate is matched with the inner diameter face of a cylinder and is unfolded at a set angle in the circumference direction, and the angle can meet the requirement of shading the air port; a round sliding block accommodating hole for mounting a round sliding block is formed on the piston seat; two guide side plates which are extended downwards in the axial direction are symmetrically arranged on the piston ring band; and the outer diameter faces of the guide side plates can be matched with the inner wall of the cylinder. Compared with the prior art, the piston provided by the invention is provided with the baffle plate for shading the air port, and the baffle plate is only extended at a certain angle in the circumference direction and can be designed in a thinner mode, so that the quality of the piston cannot be obviously improved by the baffle plate, and the crank round sliding block engine has the advantage of keeping relatively low reciprocation inertia. In a preferable scheme, scavenging efficiency is improved by a specially arranged scavenging piston.

The invention discloses a microminiature thermo-motive power generating set, comprising an engine pack and a generator rotor; the engine pack is an axial piston, and a cam is used for converting the up down reciprocating motion of a piston into the rotation motion of the cam; the generator rotor is directly connected with the cam, and two air cylinder bodies in the engine pack are arranged on two sides of the cam oppositely respectively. The microminiature thermo-motive power generating set has the advantages of simple and compact structure, simpleness in control, high working reliability, high efficiency and the like.

The invention relates to a pump-gas boosting internal combustion engine which is a reciprocating piston type four-stroke internal combustion engine, wherein through a piston crank slider mechanism, a reciprocating linear motion of a piston is turned to a rotary motion of a crankshaft under a cylinder pressure and an inertia force of the whole turning system which employs the crankshaft as a link body, and then the pump-gas boosting internal combustion engine does work outwardly; through the pump-gas boosting system, the pump-gas generated by down strokes of expansion and air suction is used for supercharging the cylinder; and a cycle lubrication system in a cylinder sleeve provides oil film lubrication for a piston ring running normally in the cylinder. The pump-gas boosting internal combustion engine ahs advantages that: 1, a fresh working medium filling amount of an air cylinder is increased more than twice and the liter power can be enhanced more than twice; 2, the vibration caused by reciprocating inertia force is greatly reduced by utilizing pump-gas pressure; 3, a linkage is canceled, and the vibration caused by second-order unbalanced inertia force is eliminated; 4, the heavy pollution of leaking gas on engine oil is eliminated, and the engine oil is only added and replenished without replacing the engine oil periodically in use, thereby obviously saving the energy and reducing the consumption; and 5, the work manner such as pressure air sweep and supplement can be used for reducing the original discharge amount of tail gas pollutants.

The invention relates to a piston for a two-stroke crank round sliding block internal-combustion engine, comprising a crown part and a piston seat; wherein the crown part is provided with a baffle which extends downwards from a piston ring belt and is used for shielding an air hole, the external diameter surface of the baffle is matched with the internal diameter surface of a cylinder, and the set angle is unfolded along the circumferential direction; and the piston seat is provided with a round sliding block containing hole for installing a round sliding block. The round sliding block containing hole of the bearing seat is arranged inside a round sliding block containing body, the lower side of which is provided with a scavenging piston crown part that is provided with a ring groove provided with an oil ring. Compared with the prior art, the piston is provided with the baffle for shielding the air hole, extends at a certain angle along the circumferential direction and can be designed to be a thinner form, so that the baffle can not lead the mass of the piston to be obviously increased and ensures the crank round sliding block engine to still maintain the advantage of less reciprocating inertia. In the preferential scheme, the scavenging efficiency can be improved by the specially arranged scavenging piston.

The invention discloses a micro-free piston power unit with a self-pressurized type uniflow scavenging structure. The micro-free piston power unit comprises a gas cylinder, a stator winding and a rectifier, the stator winding is wound around the outer surface of the gas cylinder, and the rectifier is connected with the stator winding; the gas cylinder is internally provided with two cavities and an exhaust chamber, the exhaust chamber is formed between the two cavities, partition plates are arranged between the two ends of the exhaust chamber and the two cavities, and the exhaust chamber is provided with an exhaust opening; the two cavities are symmetrically distributed through the center axis of the exhaust opening, a gas inlet is formed in the upper end of each cavity, and a self-pressurized gas inlet channel is formed in the inner bottom of each cavity; and two magnetic pistons are located in the two cavities correspondingly, thus the cavities are internally divided into scavengingchambers and combustion chambers, a piston connecting rod penetrates through the partition plates to connect the two magnetic pistons, and the piston connecting rod is provided with an axial groove structure. According to the self-pressurized type uniflow scavenging structure, the structure design is simple, the gas inlet pressure is increased through the self operation process, meanwhile, the position of a waste gas outlet is changed to form the uniflow scavenging mode, and the scavenging effect of the micro power unit is improved advantageously.

The invention discloses a single cylinder two-stroke internal-combustion engine with a crank circular slide block. A crank circular slide block mechanism of the internal-combustion engine comprises a crank shaft, a circular slide block and a piston corresponding to the circular slide block; the piston is a double-acting piston of which both ends are provided with a working head respectively, and the piston is arranged in an air cylinder; the first working head at one end of the piston is used as a piston head of the internal-combustion engine, and a top surface of the first working head, an air cylinder inner wall and a cylinder cover arranged at one end of the air cylinder enclose to form a working cylinder; and the second working head is used as a scavenging piston head, and a top surface of the second working head, the air cylinder inner wall and a valve plate arranged at the other end of the air cylinder enclose to form a compressor air cylinder. The crank circular slide block mechanism also comprises a dynamic balance rotary block. Via an eccentric hole arranged on the dynamic balance rotary block, the dynamic balance rotary block sheathed on the same crank shaft together with the circular slide block is not directly connected with any reciprocating element and is fixed to the circular slide block as a mass member. The single cylinder two-stroke internal-combustion engine with a crank circular slide block is compact in structure and good in scavenging effect.