356results about How to "Improve inflation efficiency" patented technology

The invention discloses an engine cooling system and a cooling method. The cooling system comprises a water pump, a double-valve temperature regulator, a machine oil cooler, a water jacket of a cylinder body, a water jacket of a cylinder cover, a water tank radiator and an EGR cooler. The cooling system adopts a water passage circulation as follows: when the engine is started, the water pump begins to work; cooling liquid firstly flows into the machine oil cooler and enters in the water jacket of the cylinder cover to cool the key area of the cylinder cover, and then enters in the water jacket of the cylinder body from a gasket circulating hole of the cylinder cover to cool the cylinder body and the EGR cooler. The cooling liquid in the cooling system firstly cools the cylinder cover to reduce the temperature of the cylinder cover by 10 DEG C to 15 DEG C, enhance aeration efficiency, enlarge air inlet quantity, promote complete combustion, reduce the formation of discharge objects andenhance output efficiency; After cooling the cylinder cover, the cooling liquid enters in the cylinder body for cooling the cylinder body; the higher temperature of the cylinder body can reduce friction, improve fuel efficiency, enhance the output efficiency and reduce peak value pressure and temperature in the cylinder.

The invention relates to an engine cooling system, comprising a radiator, an expansion water tank, a pump unit, and a water jacket of a cylinder cover and a water jacket of a cylinder body that are communicated with each other. An outlet of the pump unit is communicated with an inlet of the water jacket of the cylinder cover to input cooling liquid; the input cooling liquid is arranged to be two flow paths for respectively cooling the cylinder cover and the cylinder body of the engine, wherein the first flow path is a loop where the cooling liquid outflows from an outlet arranged on the cylinder cover via the water jacket of the cylinder cover, and enters into an inlet of the pump unit after passing through the expansion water tank; the second flow path is a loop where the cooling liquid outflows from an outlet arranged on the cylinder body via the water jacket of the cylinder body, and enters into the inlet of the pump unit after passing through the radiator. The invention also relates to an engine cooling method. By utilizing the engine cooling system and the cooling method, temperatures of the cylinder cover and the cylinder body can be controlled and maintained in a more reasonable way, and therefore a temperature of lubricating oil can be notably improved, friction loss can be lowered, fuel consumption can be more efficient, and emission can be lowered.

An air pump, including: two cylinders, a big one and a small one, is fitted to each other by a contractible way. A head connects with the out end of the small cylinder. A pressure relief valve connects with the out end of the big cylinder. A first piston is fixed at the in end of the small cylinder and placed in the big cylinder. A first pipe, one end fixes on the out end of the big cylinder, and the other passes through the first piston and places inside the small cylinder. A first chamber with a passage communicating with the first pipe forms therein between the inside wall of the big cylinder and the outside wall of the first pipe. A second pipe, one end fixes at the out end of the small cylinder and communicates with the head in one-way air admission and the other fits into the first pipe by contractible way and communicates with it. A second piston, which is placed inside the small cylinder, fixes at the other end of the first pipe and the second pipe goes through it. A second chamber with a one-way passage communicating with the head forms therein between the inside wall of the small cylinder and the outside wall of the second pipe and between the out end of the small cylinder and the second piston.

The present invention relates to a tidal energy gas supply apparatus, which is characterized by comprising a support (1), an inflation unit (14) and a gas storage tank (8), wherein the inflation unit (14) comprises a cylinder (3), a piston (4), a piston rod (5) and a floating body (6), the cylinder (3) is arranged on a beam (2) of the support (1), the piston (4) is slidably matched inside the cylinder (3), the upper end of the piston rod (5) is fixedly connected with the piston (4), the lower end of the piston rod (5) is fixedly connected with the floating body (6), the upper end of the cylinder (3) is provided with a first check valve (10) and a gas outlet (11), the gas outlet (11) passes through a second check valve (9) and is communicated with the gas storage tank (8), the lower end of the cylinder (3) is provided with an opening, the opening position is provided with a closing ring (22), and the gas storage tank (8) is provided with an inflation interface (12). The present invention provides a tidal energy gas supply apparatus for providing a gas source for coastal gas using equipment by using tidal energy.

The invention provides a natural gas engine waste gas bypass type booster control system which comprises a compressed air storage bottle, a pressure reducer, a booster control valve, a waste gas bypass pressure sensor, an engine control unit, a boosting pressure sensor, a booster waste gas bypass control membrane valve and a booster. The booster comprises a booster waste gas bypass valve, a booster turbine and a booster compressor. The engine control unit controls opening of an electromagnetic valve on the basis of pressure data collected by the boosting pressure sensor and the waste gas bypass pressure sensor, therefore, outlet air pressure of the booster control valve is controlled, and opening of the booster waste gas bypass valve is controlled. The invention further provides a naturalgas engine waste gas bypass type booster control method. An air inlet throttle loss can be reduced, exhaust back pressure can also be reduced, the charging efficiency is improved, and finally fuel economy is improved.

The invention provides a storage battery airtightness detection and inflation method comprising the following steps: a, sealing the detected storage battery vent hole and vacuumizing the storage battery by a vacuum pump; b, maintaining the negative pressure state in the storage battery; c, judging whether the storage battery airtightness is qualified according to the time when the vacuum degree ofthe storage battery reaches the negative pressure requirement and the negative pressure change value in the storage battery after the end of pressure maintaining; and d, removing the defective storage batteries detected in the step c and piping the protective gas into the qualified storage batteries. The conventional method of using positive pressure inflation to detect the airtightness is changed into using negative pressure pumping to detect the airtightness so that convex deformation of the side wall of the storage battery tank caused by inflation can be effectively avoided; the protectivegas is piped into the qualified storage batteries at the detection position after detecting the airtightness by the negative pressure so that the deflation link can be reduced and the work efficiencycan be enhanced and the piping quality of the protective gas can be enhanced. The labor cost can be saved, the production efficiency can be enhanced and the inflation quality consistency can be guaranteed.

The invention belongs to the technical field of engines, and relates to an electromagnetic-control hydraulic drive type fully-variable valve mechanism. The electromagnetic-control hydraulic drive type fully-variable valve mechanism consists of a control valve lower part, a valve element, an electric-control throttle valve, a control valve upper part, a solenoid coil, an electric-control pressure regulating valve, a valve, a low-pressure oil path system, a high-pressure oil path system and the like, wherein the solenoid coil is electrified to close the valve element, so that the high-pressure oil path system is opened, the low-pressure oil path system is closed, and high-pressure oil drives the valve to open; the solenoid coil is interrupted, and the valve element is returned, so that the high-pressure oil path system is closed, the low-pressure oil path system is opened and the valve drops; electrifying moment and electrifying duration of the solenoid coil can control valve timing and opening duration; the electric-control pressure regulating valve regulates oil pressure of the high-pressure oil path system, so that valve lift can be controlled; and the electric-control throttle valve regulates effective circulation area of the low-pressure oil path system, so that dropping speed of the valve can be controlled, and impact is reduced. The electromagnetic-control hydraulic drive type fully-variable valve mechanism can realize fully-variable valve motion parameter control, optimizes an engine working process, and is flexible to control; and the electromagnetic-control hydraulic drive type fully-variable valve mechanism is simple in structure, is convenient to manufacture and is easy to popularize.

The invention discloses an auxiliary system for a controllable temperature-control pressure gas sealing test platform. The system comprises a gas supercharging / pressure reducing cycle system, an experimental box pressure-stabilizing system, a leakage detection system, a temperature control system and a safety protection system; the auxiliary system is connected with the experimental box through apipeline and used for simulating an on-service environment of the high-pressure hydrogen-storage sealing part; the gas supercharging / pressure reducing system can provide the hydrogen environment withdifferent pressure and different hydrogen cycle frequency for the experimental box, and the hydrogen charging efficiency can be improved due to the existence of the low-pressure hydrogen-charging line; the temperature control system performs feedback regulation through the difference between the set test temperature and the actual temperature; the feedback regulation is used for a flow regulatingvalve and used for regulating the flow velocity of the heat transferring medium, thereby realizing intelligent temperature control.

The invention discloses a rapid gas supplementing pumping cover and a container with the pumping cover. The pumping cover comprises a movable cover and a base. A gas supplementing hole is formed in the movable cover. When people conduct usage, the hand blocks the gas supplementing hole and downwards presses the movable cover, air in an inflation cavity is compressed and enters a liquid storage cavity, and when a user loosens the grip and the gas supplementing hole is exposed, the outside air rapidly enters the inflation cavity through the gas supplementing hole in the movable cover reset process, and therefore the pumping cover structure has the characteristic that usage is convenient and efficient. The container adopting the pumping cover with the structure is particularly suitable for filling of carbonate beverages, accordingly, under the situation that unsealing is conducted and usage is incomplete, the container is inflated with gas, the gas pressure intensity in the container is guaranteed, and accordingly the preservation quality is ensured; and in addition, through application of the pumping cover, the container using the pumping cover can be subjected to inflation pressing-out and quantitative mixing pouring-out, and usage is facilitated for people.

A gas inlet and fuel supply system of gas engine, which contains air-fuel ratio controller and gas distributor, wherein the air channel of air-fuel ratio controller and gas channel has same size and machining precision with proportional number, the gas distributor mainly consisting of gas distribution disk and cover whose gas outlet number is same with that of engine cylinder, circular gas groove is etched in gas distribution disk synchronously rotating with gas distribution cam shaft of engine. Said invention can control air-fuel ratio and gas distribution timing with easy starting, stable operating, high thermal efficiency etc.

The invention relates to an electric air pump, which comprises a piston type inflating structure and a centrifugal inflating structure which are arranged in a casing, wherein the centrifugal inflating structure comprises a pump casing with an air outlet and an air inlet; a wind wheel is arranged in the pump casing; an air outlet of the piston type inflating structure and the air outlet of the pump casing are connected with a joint; and the joint is internally provided with an inflating hole communicated with the air outlet of the piston type inflating structure and the air outlet of the pump casing. The electric air pump is characterized in that a first unidirectional valve plate which only allows gas in the pump casing to be exhausted to the inflating hole is arranged at the air outlet of the pump casing; an air inlet channel communicated with the air inlet and the outside is arranged at the bottom of the pump casing; a valve port is arranged in the middle of the air inlet channel; a second unidirectional valve plate is arranged at the valve port and is internally provided with a magnet; and a reed switch capable of inducting the magnet only when the second unidirectional valve plate is positioned in a closed state is fixed outside the pump casing. The invention is the electric pump capable of automatically and stably switching the inflating mode according to the real-time pressure in the inflating equipment.

The invention discloses an air pump which comprises a shell, an air valve and an air blasting device. The shell is provided with an accommodating cavity, a first air port and a second air port, wherein the air blasting device is pivoted in the accommodating cavity; the lower end of the air blasting device is connected with the air valve which comprises a rotary shell, a motor, an impeller and an air chamber; a first air guide groove and a second air guide groove are arranged at the lower end of the air blasting device; the upper ends of the first air guide groove and the second air guide groove are respectively communicated with an air inlet end and an air outlet end of the impeller; the lower ends of the first air guide groove and the second air guide groove are alternately communicated with the second air port; and a drive positioning mechanism is arranged between the shell and the rotary shell, and the drive positioning mechanism comprises a plurality of limiting grooves at different heights, a pushing slope surface positioned between two adjacent limiting grooves, a convex column and an elastic element. Therefore, when being rotated, the air blasting device can switch the first air guide groove and the second air guide groove and enable the first air guide groove and the second air guide groove to be alternately communicated with the second air port, and the second air port is opened or closed at the same time, therefore, the operation is convenient, and the structure is simple and compact.

The invention provides a resonant intake tube of a natural gas engine, comprising a resonant cavity, an intake collector positioned on the upper part of the resonant cavity and intake manifolds positioned on the lower part of the resonant cavity; wherein, the side wall surface of the resonant cavity, which is connected with the intake collector is shaped like a section of arc surface; the whole resonant cavity is crescent; four intake manifolds go along the center line of the intake collector and are pairwise symmetrical with the planes vertical to the two crescent sides of the resonant cavity; the length of the two intake manifolds in the middle is larger than that of the intake manifolds at both sides; the length of path of the air flowing from the entrance of the intake collector to the exit of each intake manifold is equal. The resonant intake tube not only can fully utilize the resonance effect of the intake air to improve the charging efficiency of the engine but also can improve the unevenness of the intake air of the natural gas engine.

The invention relates to a natural gas engine, in particular to a lean burn layered combustion chamber structure of a direct injection natural gas two- valve engine. The combustion chamber structure comprises a piston, an air cylinder cover, an air cylinder, an intake valve and an exhaust valve, and is characterized in that a top face of the piston is provided with a flow guide pit; a natural gas nozzle part is arranged on the air cylinder cover closes to a part with a larger curvature radius of the flow guide pit; a spark plug is also arranged on the air cylinder cover at a position corresponding to that of the natural gas nozzle and is close to a part with a smaller curvature radius of the flow guide pit. In the structure, the flow guide pit 8 is arranged on the top of a protruding piston, and the natural gas nozzle aligns with the part with a larger curvature radium of the flow guide pit 8 and can cooperate with the spray time and motion of the piston to guide a spray beam and with the flow of compressed air to increase the concentration of the natural gas near the spark plug so as to form uneven layered mixed gases during lean burning to improve ignition performance and combustion performance of the engine.

A basketball inflator with the basketball air leakage detection function is provided. The basketball inflator comprises a case; a gas tank is installed inside the case; at least one inflating needle is connected to an outlet end of the gas tank through a gas pipe; a vertical plate is also installed on an external top surface of the case; an upper press plate is arranged above each inflating needle; the upper press plate is connected with a press spring; the other end of the press spring is fixed on the vertical plate; the upper press plate is pressed on a basketball to be inflated through theactive force of the press spring; one end, away from the vertical plate, of the upper press plate is also provided with an infrared range finding probe for detecting the distance between the upper press plate and the top surface of the case. The invention can provide a plurality of inflating needles to realize the simultaneous inflation of a plurality of basketballs, thereby greatly improving thecharging efficiency. Moreover, each of the inflating needles corresponds to an upper press plate and an infrared range finding probe, and detects the degree of inflation and air leakage of the basketball by detecting the distance.

The invention provides an ultralow-concentration gas machine combustion system and a control method thereof. The ultralow-concentration gas machine combustion system comprises an air exhaust turbocharging device, an ultralow-concentration gas pressurizing inlet device, a diesel common-rail micro-jet ignition device, a diesel injector cooling circulation device, an EMS control unit and a pluralityof cylinders, wherein the air exhaust turbocharging device can improve the air inlet pressure and efficiency, the ultralow-concentration gas pressurizing inlet device can improve the gas inlet densityto meet the requirements of different loads for a high-pressure gas flow rate, and the diesel injector cooling circulation device decreases the combustion temperature of an injector under a high loadand greatly lowers the probability that the ejector burns down or gets stuck. Under the combined action of all the devices, normal ignition and normal combustion based on the ultralow-concentration gas machine combustion system are realized, and normal starting and operating of a gas machine are ensured.

The invention provides an extra-high pressure converter station SF6 continuous charging device in a high and cold region and a heating control method for the extra-high pressure converter station SF6 continuous charging device. The problem that in the prior technical scheme, the gas charging efficiency of a single SF6 gas cylinder is low is solved. The extra-high pressure converter station SF6 continuous charging device comprises a trolley body provided with a multi-pass block, a placing part and a plurality of SF6 gas cylinders. The SF6 gas cylinders are arranged on the placing part. A gas channel is formed in the multi-pass block and comprises a gas outlet and a plurality of gas inlets connected with SF6 gas cylinder gas outlets through gas pipelines. The gas outlet is connected with a pressure reducing valve. The extra-high pressure converter station SF6 continuous charging device in the high and cold region and the heating control method has the beneficial technical effects that gas in the multiple SF6 gas cylinders can be gathered through the gas inlets of the multi-pass block, the gathered gas goes out through the gas outlet, the pressure of the gas at the gas outlet is reduced to the needed pressure through the pressure reducing valve, due to the fact that the extra-high pressure converter station SF6 continuous charging device uses the multiple SF6 gas cylinders, the total amount of SF6 gas is increased relative to that of a single SF6 gas cylinder, and then continuous charging is achieved. Similarly, after the total amount of the SF6 gas is increased, the pressure loss speed is lower than that of the single SF6 gas cylinder, and the gas charging efficiency is improved.

The invention relates to the field of automobile tires, in particular to intelligent automatic tire inflation equipment for an automobile production line. The equipment comprises a transmission rack,a plurality of idler wheels convenient for the transmission of tires, two limiting plates for preventing deviation of tires during transmission, a feeding assembly for moving the tires on the plurality of the idler wheels to a designated position, a rotation assembly for driving the tires in a rotation disc mode, a grabbing assembly for grabbing the tires on the transmission rack and placing the tires on the rotation assembly, an inflation assembly for automatically inflating the tires, a discharging mechanical arm used for sending out the inflated tires, and a discharging conveyor belt, whichis used for transporting the tires to the next step and is arranged on the side of the discharging mechanical arm. The equipment solves the problems that the manual inflation of tires is difficult inthe prior art, and the gas in the tire does not reach the inflation standard, the manual labor is reduced, and the tire inflation efficiency is improved.

The invention discloses a rapid inflation gun, which comprises a gun body, a first air inlet pipe, a second air inlet pipe, an air source collector and an air outlet, wherein the first air inlet pipe is arranged in the gun body, and is connected with external active air supply equipment; the second air inlet pipe is communicated with external atmospheric air; the air source connector is arranged in the gun body; the air outlet is formed at the other end of the gun body; the air source connector is provided with a passive air inlet channel and an active air inlet channel for bringing atmospheric air of the passive air inlet channel to the air outlet; the active air inlet channel is communicated between the first air inlet pipe and the air outlet; and the passive air inlet channel is communicated between the air outlet and the second air inlet pipe. When air is supplied to the first air inlet pipe, external atmospheric air can be brought into the inflation gun through the second air inlet pipe, so that the inflation amount is multiple times of the air source supply amount within the same inflation time, and the high inflation speed and high efficiency are achieved.

The invention aims at the problem that in the prior art, the heating efficiency of a laminating machine in the laminating process is low, and provides a surface photovoltaic module laminating machine.The surface photovoltaic module laminating machine comprises an upper heating box and a lower heating box which are arranged face to face, a gas supplying, heating and pressurizing device and a vacuumizing device; each heating box comprises a cavity top plate, an elastic cavity partition plate and pressing strips which arrange the edges of the cavity partition plate on the cavity top plate in a sealing mode, wherein a heating cavity is formed between the cavity partition plate and the cavity top plate; the pressing strips of the two heating boxes face each other, the two cavity partition plates which are arranged face to face and the pressing strips form a sealed laminating cavity when the upper heating box and the lower heating box are closed, and the vacuumizing device is communicated with the two heating cavities and the laminating cavity; the gas supplying, heating and pressurizing device is communicated with the heating cavities and can fill heated and pressurized gas into the heating cavities; and the cavity partition plates are directly heated while pressure is generated by means of the heated gas, and therefore the heating efficiency in the laminating process is greatly improved.

The invention discloses a novel inflating structure for an airbag inflator. The novel inflating structure comprises an inflating guide rod, a blade and a high-temperature heating zone, wherein a gas channel is arranged inside the inflating guide rod; an air inlet is formed in one end of the inflating guide rod; at least one air outlet is formed in the inflating guide rod; the blade is arranged at the side of the inflating guide rod, and a cutting edge of the blade is close to the inflating guide rod; the inflating guide rod is arranged on the same horizontal position with the direction of an inlet of the high-temperature heating zone; and the inlet of the high-temperature heating zone is located between the air outlet and the blade. When an air cushion film is inflated by using the airbag inflator, the air cushion film is firstly inflated through an inflating inlet, is subjected to heat sealing by press-fit after entering the high-temperature heating zone from the inlet of the high-temperature heating zone and is incised by using the blade; and due to the adoption of an inflation, heat sealing by press-fit and incision inflating mode, the problem of gas leakage caused by heat sealing by press-fit after incision in the prior art can be effectively avoided, and the pressure of gas in the air cushion film can be ensured.

The invention discloses an air column mat convenient to inflate and a manufacturing process thereof, and belongs to the field of air column mats. The air column mat is designed to solve the problem that an existing air column mat is low in inflation efficiency. According to the air column mat convenient to inflate, an inflation opening is reserved between a first sealing film and a second sealing film of each air inlet channel. The manufacturing process of the air column mat convenient to inflate comprises the following steps that supporting parts are wrapped by the first sealing films and the second sealing films, a hot rolling roller carries out hot pressing in the conveying directions of the first sealing films and the second sealing films and at the two sides of the supporting parts, the air inlet channels are formed, and each inflation opening is formed between the first sealing film and the second sealing film of the corresponding air inlet channel through the supporting parts. According to the air column mat convenient to inflate and the manufacturing process thereof, each inflation opening is formed between the first sealing film and the second sealing film of the corresponding air inlet channel, the inflation end of an inflation device directly stretches into the inflation openings or is in butt joint with the inflation openings for air injection, a clearance does not need to be manually formed in a twisted manner, and the inflation efficiency is high.

The invention relates to the field of high-voltage insulation equipment, and especially relates to a DC insulator insulation test device and a DC insulator insulation test method. The DC insulator insulation test device comprises a vertically-arranged high-voltage lead-in sleeve and a horizontally-arranged test cylinder connected with the high-voltage lead-in sleeve. The high-voltage lead-in sleeve and the test cylinder have communicated sealed cavities. The high-voltage lead-in sleeve is internally equipped with a high-voltage lead-in device. The test cylinder is internally equipped with a high-voltage conductor electrically connected with the high-voltage lead-in device, and the high-voltage conductor is configured in the test cylinder in an overhanging way. The top or bottom, away from the joint with the high-voltage lead-in sleeve, of the test cylinder is equipped with an insulator grounding end installation seat electrically connected with the test cylinder. The high-voltage conductor is equipped with an insulator high-voltage end installation seat arranged opposite to the insulator grounding end installation seat. The space between the insulator grounding end installation seat and the insulator high-voltage end installation seat is used to support and assemble a tested insulator in test. The problem that the existing insulator insulation test device cannot meet the requirement of DC insulator test is solved.

The invention discloses a bicycle frame. The bicycle frame comprises a longitudinal beam and a cross beam, wherein the top end of the longitudinal beam is connected with the left end of the cross beam; the bottom end of the longitudinal beam is connected with the right end of the cross beam through a supporting beam; a rear fork is mounted at the top end of the longitudinal beam; the bottom end of the longitudinal beam is connected with a cross fork; the rear fork is welded with the cross fork; a damping spring, a low-pressure air chamber and a high-pressure chamber are mounted in the longitudinal beam and are connected in sequence from top to bottom. The bicycle frame has the beneficial effects that an inflating assembly is arranged in a bicycle body, so that the inflating assembly is convenient to take; when the inflating assembly inflates, the used air is accumulated at ordinary times, so that the bicycle frame is energy-saving and environment-friendly; the inflating efficiency is high because of bipolar pressurizing.

The invention relates to a laser rapid prototyping protective gas inlet device, belongs to the technical field of laser rapid prototyping gas inlet systems and provides the laser rapid prototyping protective gas inlet device which is simple in structure and convenient to use, can effectively adjust the air inlet volume and improves the protective gas inlet efficiency. According to the adopted technical scheme, a plurality of gas inlets are formed in the cavity wall of a prototyping cavity and connected with a gas inlet manifold through a gas inlet channel, and a regulating valve is arranged on the gas inlet manifold and connected with a master control system. The laser rapid prototyping protective gas inlet device is widely used for filling the prototyping cavity with protective gas in the laser rapid prototyping process.

The invention discloses an automobile engine air distribution cam suitable for variable two-stage air valve lift. An air valve is provided with two high-lift cams and a low-lift cam, and the low-lift cam is arranged between the two high-lift cams; and the molded lines of the cams are specially designed. The width of the high-lift cams is 7.1 millimeters, the width of the low-lift cam is 9.2 millimeters, the low-lift cam advances for 18 degrees compared with the high-lift cams, and the maximum lift deviation of the two-cam air valve is less than + / -0.05 millimeter; the base circle diameter of the high-lift cams is different from that of the low-lift cam; and the buffer sections of the two cams are respectively designed as follows: the height of the buffer section of the high-lift opened section is 0.42 millimeter, and the height of the buffer section of the closed section is 0.52 millimeter. The high and low cams are switched under different working conditions to meet the requirement for different air valve lift under different working conditions and improve the dynamic property, economic efficiency and discharge property of an engine.

The invention discloses a mobile rapid compressed air charging device. The mobile rapid compressed air charging device consists of a mobile carrier, a power supply part, an efficient air charging machine, a cooling part, a high-pressure air storage device, a control pipeline, an antiexplosion box and supported equipment of an air charged device, wherein the mobile carrier is a vehicle chassis or a trailer chassis for bearing other parts; the power supply part is connected with the efficient air charging machine and the cooling part; the efficient air charging machine is connected with the high-pressure air storage device via the control pipeline; the high-pressure air storage device is connected with the support equipment of the air charged device via the control pipeline; the efficient air charging machine is also connected with the support equipment of the air charged device via the control pipeline; the support equipment of the air charged device is installed in the antiexplosion box. The mobile rapid compressed air charging method comprises six major steps. The mobile rapid compressed air charging device and method are applicable to minitype mobile rescue and field fight, is suitable for national conditions of China and the practical need of charging air respirators in the field, and has obvious military benefit and social benefit.

The invention provides an efficient ventilation mechanism of a diesel engine. The efficient ventilation mechanism comprises a cylinder cover, an intake valve, an exhaust valve, an intake way and an exhaust way, wherein a fixed separation plate is arranged in the cylinder cover in the plane direction formed by valve rods of the intake valve and the exhaust valve; a rotary control valve plate capable of being matched with the separation plate in a cross manner is arranged in the cylinder cover; and the valve plate of a rotary control valve is driven to swing back and forth along the separation plate, so that the intake valve and the exhaust valve can be switched between communication with the intake way and communication with the exhaust way. The efficient ventilation mechanism can increasethe throat circulating area of the valve, effectively improves the engine inflation efficiency and the circulating capacity, is simple and compact in structure, and facilitates engineering application.