190results about How to "Achieve overlay" patented technology

The invention relates to a device for realizing superposition and modulation of orbital angular momentum states of light beams, belonging to the laser application technical field. The invention consists of a laser, a polarizer, a one-fourth wave plate, a diffraction grating, a Fourier lens, a polarized beam-splitting prism, two Dove prisms, three holophotes and a pinhole diaphragm, wherein, firstly, an optical system which takes the diffraction grating and the Fourier lens as core elements is adopted to generate a plurality of bundles of light beams which are equidistantly distributed on the circumference which takes an optical axis of incident light as the center and are positioned in different orbital angular momentum states; secondly, an optical system which consists of the polarized beam-splitting prism, the holophotes and the rotatable Dove prisms is adopted to decompose an optical field into field components which rotate towards the opposite direction; thirdly, the field components are superposed, and superposition of required orbital angular momentum states is realized and then superposition and modulation of the orbital angular momentum states are realized. The device for realizing superposition and modulation of the orbital angular momentum states of the light beams has application value in the free space optical communication field.

The invention discloses an Android platform based double-screen display method. The method is used for switching display between a first display screen and a second display screen and comprises the steps that step1, a Display Hardware object describing the display screens is created in the system, and the Display Hardware object is initialized, wherein three modules of Gralloc, Overlay and OpenGLES are initialized successively during the initialization; step2, the Gralloc module refreshes a UI portion of the first display screen and monitors control instructions from a UI man-machine interaction interface, double-screen display and video switch operations are performed if the control instructions are execution of double-screen display, and contents of the first display screen are transmitted to the second display screen to be displayed.

A method for integrating information of satellite positioning and remote sensing as well as geography based on mobile device utilizes embedded windows CE operation system built in mobile device and its provided-embedded development environment including embedded GIS data model and integration of GPS and GIS as well as integration of GIS and RS to realize position data collection and remote sensed image loading as well as superposition of remote sensed image with vector map.

The invention relates to a manufacturing method of a complex-structured intelligent material device based on a rapid forming technique. The manufacturing method comprises the following steps: determining the utilized rapid forming technique according to one or multiple requirements including the physicochemical properties and states of a forming raw material and the precision of the complex-structured intelligent material device; establishing a three-dimensional model of the complex-structured intelligent material device, carrying out discretization on the surface of the three-dimensional model of the complex-structured intelligent material device to generate a three-dimensional digital model file of the three-dimensional model of the complex-structured intelligent material device, carrying out support adding, layered model discretization and processing route generation on the three-dimensional digital model file to guide out a processing file capable of being identified by rapid forming equipment, and downloading the processing file to the rapid forming equipment; manufacturing the complex-structured intelligent material device by virtue of the rapid forming equipment according to the processing file. According to the manufacturing method, the problem that different types of the complex-structured intelligent material devices are difficult to manufacture is solved; a forming device has the advantages of high precision, adjustable performance, easiness in manufacturing and the like.

The invention discloses a kind of production of liquid fruit and vegetables. The way express the fresh vegetables juice by physics methods, then put the draft in the liquid edible fungus to ferment, forming fermentation liquor, then homogenate the ferment, filtrating the effective constituent, to gain the fruit and vegetables' ferment juice, mix these two kinds of juice, forming the clarified juice having much nourish of fruit and vegetables, as a kind of production for general using. The technique exploit the way on the stage, apply a new way for people's supplying fruit and vegetables.

The invention relates to a four-machine driven self-synchronizing vibrating screen and a structural parameter determining method, and belongs to the technical field of vibrating machinery. The vibrating screen comprises a screen body, a bracket, a spring, a screen mesh and two symmetrical auxiliary rigid body units; each auxiliary rigid body unit comprises a seat mounted bearing, a seat mounted bearing undercarriage, a floating shaft, a floating limit spring, an eccentric block and an auxiliary rigid body, wherein each auxiliary rigid body comprises two symmetrical vibration motors and a vibration motor seat. The structural parameter determining method comprises A, a structural parameter determining method for the four-machine vibrating screen of circular motion, and B, a structural parameter determining method for the four-machine vibrating screen of linear motion. The vibrating screen and the method have the advantages that two vibration exciters arranged on the same auxiliary rigid body realize synchronization of zero phase difference, an exciting force acted on a vibrating machine body is equivalent to an exciting force produced by one vibration exciter at the position of a rotating shaft of the auxiliary rigid body, and the exciting force is equal to a resultant force of exciting forces of the two vibration exciters, so that superposition of exciting forces of four vibration exciters is realized.

The invention relates to a preparation method for different carbon fibers / a cobalt hydroxide electrode and a solid-liquid composite electrode system. By means of pretreatment and modification of different carbon fibers, the carbon fibers serve as a substrate, composite of metal oxide or hydroxide and the carbon fibers are realized by the electrochemical deposition, and a solid electrode is obtained and has high specific capacitance in the alkaline aqueous solution. Redox substances are added into the alkaline aqueous solution, a composite electrode system that the solid electrode and liquid-phase electrolyte supply the pseudocapacitance jointly is obtained. The composite electrode system has ultra-high specific capacitance, is applied in supercapacitors, and has the advantages of ultra-high energy density, high power density and long service life. The specific capacitance of the composite electrode system can be adjusted by changing the concentration and volume of the redox substances, and the energy density and power density of the supercapacitors can be further changed to meet different using requirements.

The invention provides a cutting, stacking, feeding and rolling integrated domestic film production device which comprises a cutting mechanism, a film stacking mechanism, a conveying mechanism and a film rolling mechanism. A feeding conveying piece is arranged between the cutting mechanism and the film stacking mechanism, a discharging mechanical arm is arranged between the film stacking mechanismand the conveying mechanism, and the film rolling mechanism is arranged below the end, far away from the film stacking mechanism, of the conveying mechanism. The cutting mechanism cuts off a material, the feeding conveying piece matched with the cutting mechanism feeds the material to the film stacking mechanism according to a certain sequence, the discharging mechanical arm clamps stacked RO film layers and conveys the RO film layers to the conveying mechanism, the RO film layers are conveyed to the film rolling mechanism by the conveying mechanism to be rolled, the overall device achieves integrated integration and automation, the production efficiency is improved, missed placement or mistaken placement of the film layers made of different materials is avoided, and the product quality is improved.

The invention relates to a bubble cap boxing machine which is reasonable in structure, stable in performance and high in production efficiency. The bubble cap boxing machine comprises a pushing plate conveying mechanism, wherein the pushing plate conveying mechanism comprises continuously-conveyed assembly line type pushing plate grids. The machine is characterized in that a stock bin conveying mechanism is arranged on one side of the pushing plate conveying mechanism in a side-by-side mode, the stock bin conveying mechanism comprises continuously-conveyed assembly line type stock bin grids, the gap between a front unit and a rear unit of each stock bin grid is the same with that of a front unit and a rear unit of each pushing plate grid, mechanical hands are arranged above the pushing plate conveying mechanism and a stock bin conveying mechanism, the multiple pushing plate grids are arranged, and the mechanical hands convey all bubble cap boards conveyed by the pushing plate grids to the stock bin grids in a one-by-one mode by being matched with the conveying speed of the pushing plate grids and the stock bin grids and controlling the back-and-forth moving of the mechanical hands. According to the conveying mode, the length of the assembly line is greatly shortened, overlaying of multiple boards can be achieved, in addition, the multiple-pushing-plate conveying can be combined, and the production efficiency is obviously improved.

The invention relates to an electrode plate wrapping method, which comprises the steps of: first, arranging a positive electrode plate and a negative electrode plate in an electrode plate material box vertically respectively, above all using a sucking disc to suck the positive electrode plate laterally, then turning the positive electrode plate downward by 90 degrees and placing it in a material trough, moving the positive electrode plate placed in the material trough forward by one working position, at the same time moving separator paper from top to bottom, cutting the separator paper off and disposing it on the material trough vertically, further moving the positive electrode plate forward by one working position, and making the front end of the positive electrode plate contact the central part of the separator paper in the moving process, along with the forward moving of the positive electrode plate, wrapping the positive electrode plate with the separator paper, then further moving the positive electrode plate forward by one working position, simultaneously employing the sucking disc to suck a negative electrode plate laterally, and placing the negative electrode plate right over the wrapping completed positive electrode plate, then keeping moving the negative electrode plate, the separator paper, and the positive electrode plate forward into a material receiving device, and when the number of a plate pack is collected, sending the plate pack out.

The invention discloses a chirality 7-(piperazine-substituted pyrazol aldehyde condensation isoniazide) fluoroquinolone carboxylic acid derivative as well as a preparation method and application thereof. The chirality 7-(piperazine-substituted pyrazol aldehyde condensation isoniazide) fluoroquinolone carboxylic acid derivative is a compound with the general structural formula (I), wherein R1 is H, methyl or ethyl, and R2 is H or methyl. According to the chirality 7-(piperazine-substituted pyrazol aldehyde condensation isoniazide) fluoroquinolone carboxylic acid derivative provided by the invention, fluoroquinolone, isoniazide and pyrazole aldehyde hydrazone are effectively combined to form a compound with a new structure; superposition and cooperation of activity are achieved; superposition of the three pharmacophores of fluoroquinolone, isoniazide and pyrazole aldehyde hydrazone is realized, the antituberculosis activity is improved, the toxic and side effects of fluoroquinolone and isoniazide to normal cells are decreased, and meanwhile, the probability that mycobacterium tuberculosis resists such drugs can be lowered; the chirality 7-(piperazine-substituted pyrazol aldehyde condensation isoniazide) fluoroquinolone carboxylic acid derivative can serve as an antituberculous active substance used for development of an antituberculous drug with a new structure.

The invention discloses an ultrasonic water meter flow calibration standard device. The ultrasonic water meter flow calibration standard device comprises a constant-pressure water supply system (10), an annular system formed by a standard volume device (40) and an ultrasonic water meter detection table (20), and a multi-gear fixed-point flow adjusting device (30) used for adjusting system flow, wherein the multi-shift fixed-point flow adjusting device comprises a venturi nozzle and an electromagnetic valve; furthermore, an annular volume pipe is taken as the standard volume device. The ultrasonic water meter flow calibration standard device can be used for exerting the effect of calibrating an ultrasonic water meter in multiple gears; the ultrasonic water meter flow calibration standard device is high in stability and is slightly affected by the environment change; the metering accuracy readability reaches 0.05%.

The invention relates to the technical field of movement capture, and discloses a mixed reality virtual preview shooting system, which is used for improving the mixed reality virtual video shooting efficiency and reducing the manufacturing cost. The mixed reality virtual preview shooting system comprises a real shooting system, a virtual shooting system, an optical positioning and movement capturing system, a central control system and a display system. The real shooting system comprises a movie and television camera and a video capture card; the virtual shooting system comprises a virtual camera, an inertia measurement device and a wireless transmission device; the optical positioning and movement capture system comprises a light capture processing server and a plurality of optical movement capture cameras, and the light capture processing server is in communication connection with the plurality of optical movement capture cameras and the wireless transmission device; the central control system comprises a central management server, and the central management server is in communication connection with the video capture card, the wireless transmission device and the light capture processing server; the display system comprises display equipment, and the display equipment is in network connection with the central management server.

A device for measuring hydrodynamic force interference among multiple ships comprises two vertical first guide rails and a vertical second guide rail which are fixedly installed on a trailer. A dragging mechanism with a first ship model crosses the two first guide rails, and a dragging mechanism with a second ship model is arranged on the second guide rail. A transverse moving mechanism driven by a ball screw pair, a rotation moving mechanism driven by a worm gear and a lifting mechanism are arranged on the dragging mechanism of the first ship model and are used for driving the first ship model to conduct transverse movement, rotating movement and lifting movement. The dragging mechanism of the second ship model comprises a vertical moving mechanism and a lifting mechanism which are driven by the motor and are used for driving the second ship model to conduct vertical movement and lifting movement on the guide rail. The two dragging mechanisms are both provided with a sensor for measuring the hydrodynamic force performance. The device can achieve measurement of the hydrodynamic performance when multiple ships sail at different relative positions at identical speed or different speeds and is used for comprehensive study of hydrodynamic force interference among the multiple ships.

The invention provides a method and a system for superimposition inputting of two-dimensional code information data, belongs to the technical field of communication technology and computers, and solves the problem that after two-dimensional codes are formed, internal data of the two-dimensional codes cannot be adjusted, modified and updated or are inconvenient in inputting. A barcode information data changing method mainly includes the following steps: A, establishing an information virtual data packet corresponding to a two-dimensional code graph; B, performing superimposition matching input of information activity data in a two-dimensional code on the virtual data packet; C, storing the virtual data packet into a cloud database; D, performing two-dimensional code information data management. The system comprises a barcode information recognition unit, a virtual data packet forming unit, a preset mode selecting unit, an access judgment unit, a data superimposition inputting unit, a data storage unit and a two-dimensional code information management unit. By the method and the system, functions of modifying and supplementing information data carried by the two-dimensional code are realized without changing the two-dimensional code graph.

The invention discloses an augmented reality display device with a monocular stereo display function and a method of the augmented reality display device. The device comprises a shell, wherein a microdisplay, a liquid lens, a beam splitting flat plate of which one face is coated with beam splitting film and a polarizing assembly are arranged on the shell; the micro display is used for displayinga two-dimensional image; the face, coated with the beam splitting film, of the beam splitting flat plate is obliquely arranged facing a display face of the micro display and used for receiving and reflecting the two-dimensional image; the liquid lens is used for magnifying the two-dimensional image and imaging the two-dimensional image at a certain distance; the polarizing assembly comprises polarizing film I, a liquid crystal cell and polarizing film II which are overlaid in sequence, and the direction of the transmitting axis of the polarizing film I is perpendicular to the direction of thetransmitting axis of the polarizing film II. The augmented reality display device with the monocular stereo display function has the advantages that according to the combination of the conditions whether or not the liquid lens has focal power, whether or not the micro display performs display and whether or not light transmission occurs on the polarizing assembly, it is achieved that a virtual scene displayed by the micro display and a scene of the actual environment are projected into the human eye alternately, so that the display mode of a stereo scene is improved, and the clear display of the stereo scene is achieved.

The invention discloses an optical sensor, which comprises a base, a first light emitting unit, a second light emitting unit and a light detection unit, wherein the first light emitting unit is arranged on the base for emitting first beams; the second light emitting unit is arranged on the base for emitting second beams; the light detection unit is arranged on the base for detecting the first beams to judge the first proximity distance of an object and detecting the second beams to judge the second proximity distance of the object, and the first proximity distance is smaller than the second proximity distance. Through arranging the two light emitting units in the optical sensor, the first beams emitted by the first light emitting unit are used for detecting the near proximity, the second beams emitted by the second light emitting unit are used for detecting the far proximity, function superposition is realized on the basis of not increasing extra devices, and multi-proximity detectioncan be realized.

The invention discloses a product quality information transmission method based on augmented reality. A three-dimensional CAD model represented by MBD (Model Based Definition) is used as an information input source, and the product quality information based on manufacturing features is extracted; a CAD model image set is generated, and during the generating process, the association relationship between an image and the manufacturing features is built; and finally, a manufacturing field image and a template image are matched, an attitude parameter of a virtual camera corresponding to a templateimage with the highest similarity is used as an initial attitude of an external camera, and superposition of the product quality information in the real manufacturing field scene is realized. The manufacturing feature is used as a basic carrier for the product quality information, and the requirement of only detecting a specific feature by an operator is met; through building the association relationship between an image and the manufacturing feature, the requirement of the operator for visual features of a part from different perspectives can be met; and by using a tracing registration technology and in combination of an external database, the requirement of transmitting the product quality information to the manufacturing field can be realized, and the detection efficiency and the quality are improved.

The invention provides a welding method and device for a square net cover of an electric fan. The welding method includes the following steps that (1) a square net cover body and a square ring part of the square net cover of the electric fan are fixed relatively; and (2) by combining the rotation and linear movement of the square net cover body and the square ring part in a horizontal plane, the welding positions of the square ring part and the square net cover body are sequentially moved to the position below a welding tool, and then the welding tool carries out welding. According to the welding method for the square net cover of the electric fan, the rotation and linear movement of the square net cover body and the square ring part in the horizontal plane are combined, the welding positions of the square ring part and the square net cover body are sequentially moved to the position below the welding tool, the square ring part is welded to the square net cover body and therefore welding of the square net cover of the electric fan is realized.

The invention discloses a method for real-name-system receiving and sending and supervision / check / management of mails / express mails. The method is realized through a management system. The management system comprises an express delivery collection tail application end, a server end, a supervision check management end and a sender client, wherein the express delivery collection tail application end, the supervision check management end and the sender client include but are not confined to a computer-end program, a mobile-end application program, a Wechat application and a webpage application, and the server end is a service program used for data receiving, processing and sending. The method comprises an express delivery collection tail-end authentication process, a sender authentication, a real-name-system receiving and sending process and a supervision check management department work personnel authentication and supervision check management process. According to the invention, information acquisition, verification, check, interaction, storage, display, protection and superposition used in real-name-system receiving and sending of the mail / express mails are realized.

The invention discloses a puncture operation navigation method based on motion capture and mixed reality technologies. According to the key points of the technical scheme, the puncture operation navigation method based on the motion capture and mixed reality technologies comprises the following steps that S1, a marker ball is pasted to the skin around the position, needing to be punctured, of a patient; S2, space position coordinates of the marker ball are captured through a Qualisys optical motion capturing system; S3, the patient and the marker ball are subjected to CT or MRI taking; S4, theball and an operation part are modeled through Unity; S5, a model is led into augmented reality equipment; S6, space position coordinates of a puncture needle with the marker ball are captured by theQualisys optical motion capturing system in the operation process and fed back to the augmented reality equipment; and S7, a doctor moves the puncture needle with the marker ball, and after a puncture path is planned, the position of the puncture needle relative to the kidney is displayed in real time in AR eyeglasses. According to the puncture operation navigation method, the puncture needle canbe tracked and positioned in real time, and three-dimensional information of a kidney model is displayed.

The invention belongs to the technical field of pet bath products, and particularly relates to a pet body wash and a preparation process thereof. The pet body wash takes radix sophorae flavescentis, neem tree roots, macleaya cordata, radix angelicae, radix stemonae, realgar, cactus, indigo, cortex phellodendri, rhubarb and rosemary as medicinal materials and has reasonable compatibility; the prepared body wash has higher detergency, is easy to clean and rinse and has no irritation to the skin, cleaned skin hair is smooth and soft, cool and refreshing, elastic and fragrant. The pet body wash also has the effects of anti-itch, anti-inflammatory, and promotes skin renewal and has particularly remarkable skin cleaning and nursing effects. At the same time, the pet body wash can significantly reduce the number of colonies on the surface of the skin, has a good sterilization effect, has effects of astringing wounds and nourishing the skin, and can make the skin dry and clean and the hair shiny by long-term use.

A semiconductor device comprising a first semiconductor chip having first terminals on one side thereof, a second semiconductor chip larger than the first semiconductor chip being stacked thereon and having second terminals on one side thereof, an insulation film formed on the second semiconductor chip to cover the first semiconductor chip, a plurality of holes made in the insulation film at least in the peripheral region of the first semiconductor chip, vias made in film shape on the inner circumferential face and the bottom face of the holes and connected electrically with the second terminals of the second semiconductor chip, a wiring pattern formed on the upper surface of the insulation film, and external terminals connected onto the wiring pattern. A semiconductor device copmrising a first semiconductor chip having first terminals on one side thereof, a second semiconductor chip larger than the first semiconductor chip being stacked thereon and having second terminals on one side thereof, an insulation film formed on the second semiconductor chip to cover the first semiconductor chip, a plurality of holes made in the insulation film at least in the peripheral region of the first semiconductor chip.

The invention discloses a breathing device for fire protection. The device comprises a respirator, an electronic system circuit is arranged on the respirator, and the electronic system circuit is connected to a front view camera, a thermal imaging sensor, a laser distance measuring sensor and a binocular AR display device arranged on the respirator. The on-site information can be detected throughthe night vision high-definition front camera, the laser ranging sensor and the thermal imaging sensor, a fire environment structure is drawn again through the processing of an electronic system and is displayed in the binocular AR display device, and the superposition of the fire environment structure on the reality is achieved such that firefighters can respond quickly. In addition, the thermalimaging sensor cooperates with the electronic system in an electronic system motherboard, the firefighters are helped to quickly search and rescue trapped people, and a travel trajectory can be recorded with the electronic system motherboard to achieve quick evacuation.

The invention discloses a wiring-free communication module. The wiring-free communication module comprises a backboard, an external interface connector and adapter boards arranged between the backboard and the external interface connector, wherein the backboard and the adapter boards are connected through inter-board connectors installed on the adapter boards; the external interface connector and the adapter boards are connected through welding needles. According to the wiring-free communication module, the backboard and the external interface connector are connected through the adapter boards and the inter-board connectors, and a circuit is arranged on the adapter boards, so that signal transmission between the backboard and the external interface connector is achieved, wiring between the backboard and the external interface connector is replaced, the usable space of equipment is fully saved, the size of the equipment is simplified, and miniaturization and simplification of the equipment can be achieved.

The invention discloses a preserved bean curd bottling machine capable of rapidly bottling preserved bean curds in a fully-automatic manner, which comprises a rack, wherein a circular air cylinder fixed tray is installed at the upper end of the rack, a plurality of mechanical arms for adsorbing and overlaying preserved bean curds are fixed on the fixed tray at equal intervals in a star shape, a preserved bean curd conveying mechanism is installed below the mechanical arms, a filling mechanism which overlays the preserved bean curds laid flat on a horizontal conveyor belt is arranged at the outer side of the bean curd conveying mechanism, a bottle conveying mechanism for conveying bottles to a bottling position is arranged below the preserved bean curd conveying mechanism, a positioning mechanism for positioning bottles is arranged between the bottle conveying mechanism and the preserved bean curd conveying mechanism, and the mechanical arms can stretch into the predetermined positions in the bottles on the bottle conveying mechanism to complete the bottling operation. Each mechanical arm of the preserved bean curd bottling machine adopts a sucking disc as a clamper for preserved bean curds, the clamping is firmer without destroying the structure of the preserved bean curds; the preserved bean curd bottling machine can overlay a plurality of preserved bean curds by using the filling mechanism, and has the advantages of high working efficiency, orderliness for overlaying preserved bean curds and convenience for subsequent bottling operations of the mechanical arms.

The invention provides a video image display processing control device. The device comprises an input decoding module, a pre-stage scaling engine module, a first YCbCr-to-RGB module, a first layer superposition module, an RGB-to-YCbCr module, a first selector, a rotation control module, a frame buffer controller, an arbiter, a post-stage scaling engine module, a second selector, a second YCbCr-to-RGB module, a second layer superposition module, an AOSD / OSD module, a third selector and a time schedule controller. According to the selection control signal, the layer data output by the OSD / AOSD module is overlapped on the image data before the rotation processing or the image data after the post-scaling processing. The device does not need a high-cost integrated CPU (Central Processing Unit) large system, and is low in cost and good in image display processing effect.

The invention discloses axial series ultra whole-revolution swing hydraulic motors, which comprise a primary stator, a primary stator blade, a primary rotor blade, a secondary stator, a secondary stator blade, a secondary rotor blade, a rotating shaft and a cover board. The secondary stator, the secondary stator blade, the secondary rotor blade, the rotating shaft and the cover board form a secondary swing motor. The primary stator, the primary stator blade, the primary rotor blade and the secondary swing motor form a primary swing motor. The primary and secondary two swing motors in the invention are axially arranged. The axial series ultra whole-revolution swing hydraulic motor has simple and compact structure and is favorable for reduction of a rotary inertia. Hydraulic circuits are connected in series. The oil distribution is simple. The superposition of rotating angles of the rotating shaft is realized, the problem that the rotating angle of the conventional swing hydraulic motor is limited to the range of less than 360 degrees is solved. And the motors are suitable for a direct drive hydraulic servo power mechanism requiring the rotating angle more than one revolution and less than two revolutions.

The invention discloses an air inlet structure for a dual-fuel engine. The air inlet structure comprises an air inlet pipe and a fuel air inlet manifold. The fuel air inlet manifold is connected with a valve piece box through a fuel air inlet branch pipe. The fuel air inlet manifold comprises an outer air inlet manifold body and an inner air inlet manifold body. The fuel air inlet branch pipe comprises an outer air inlet branch pipe body and an inner air inlet branch pipe body. One end of the outer air inlet branch pipe body is connected with the outer air inlet manifold body, and the other end of the outer air inlet branch pipe is connected with a cover plate of the valve piece box. One end of the inner air inlet branch pipe body is connected with the inner air inlet manifold body, and the other end of the inner air inlet branch pipe body is connected with a fuel gas inlet connecting pipe extending in the valve piece box. At least one fuel gas jetting valve communicated with the inner air inlet branch pipe body is arranged in the valve piece box, wherein a nozzle is arranged on the fuel gas jetting valve and extends in the air inlet pipe. The air inlet structure for the dual-fuel engine has the advantages of being simple and compact in structure, safe, reliable and high in combustion efficiency, and therefore the energy utilization rate is increased.