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32results about How to "Suitable for maintenance" patented technology

Micro-hydrogen injection energy-saving exhaust-reduction device of internal combustion engine

The invention relates to an energy conservation and emission reduction device for internal-combustion engine micro-hydrogen jet, which comprises an oxyhydrogen electrolysis pool, an electrolyte reservoir, a current pulse width modulation volume control and safety protection circuit, a gas washing tank, a water seal anti-backfire pot, a generator and a multiple-connected battery; the current pulse width modulation volume control and safety protection circuit and the positive and negative electrodes of a conductive electrode plate of the oxyhydrogen electrolysis pool are connected into a loop; the case of the oxyhydrogen electrolysis pool is provided with two holes, and pipelines led out of the two holes of the oxyhydrogen electrolysis pool are sequentially connected with the electrolyte reservoir, the gas washing tank, the water seal anti-backfire tank and an internal-combustion engine. The device injects the mixed oxyhydrogen gas after water electrolysis into a combustion chamber of the internal-combustion engine to accelerate fuel oil or fuel gas combustion and realizes the full combustion of the fuel oil or fuel gas, thus improving the thermal efficiency, reducing the consumption of the fuel oil or fuel gas, and reducing the emissions of greenhouse gases, harmful gases and solid particles. The device is used for various vehicles, ships, generator sets and the like which take the internal-combustion engine as power.
Owner:WUHAN MICRO HYDROGEN NEW ENERGY CO LTD

Three-dimensional model compression method based on three-dimensional mesh subdivision and coding

The invention relates to the field of computer graph processing, and particularly relates to a three-dimensional model compression method based on three-dimensional mesh subdivision and coding. The method comprises the steps that the boundary parameter of an axial bounding box is determined; the aliquot factor of the axial bounding box is calculated; according to the aliquot factor, three-dimensional mesh subdivision is carried out on the axial bounding box, and the unique index coding of a subdivision mesh is established; index coding data, which are corresponding to the three-dimensional subdivision mesh, of the vertex are calculated; the coordinate of each subdivision mesh origin is calculated; the offset of the three-dimensional model vertex coordinate relative to a three-dimensional subdivision mesh origin is calculated to acquire the floating-point precision of the vertex coordinate, and the offset is integerized; data entropy coding is carried out on the data; and an open-source LZMA compression algorithm is used to carry out parameter data compression. According to the invention, three-dimensional subdivision mesh index coding is carried out on the three-dimensional model vertex according to relevant parameters, and the corresponding offset is calculated; space occupied by the offset is greatly reduced compared with the original vertex coordinate data; and the compression ratio is improved.
Owner:上海未高科技有限公司

Multifunctional positively-agitating type asphalt pavement maintenance vehicle

InactiveCN101225635AShort mixing timeIncreased mixing timeRoads maintainenceEngineeringRoad surface
The invention discloses a multifunctional forced stirring asphalt pavement maintenance vehicle; wherein, a generator set, an asphalt box and an asphalt measure and feeding device, a mineral aggregate lifting device, a burner, a mineral aggregate drying and heating unit, an asphalt concrete forced stirring device, a mineral powder weighting and conveying device, a dust remover, an electric-control device and an accessories device are arranged in the front of the chassis of the automobile or trailer; the mineral aggregate lifting device is fixedly arranged in front of or behind the mineral aggregate drying and heating unit; the mineral powder weighting and conveying device is arranged in parallel with a side of the asphalt concrete forced stirring device; the asphalt concrete forced stirring device and the mineral powder weighting and conveying device are added and the mineral aggregate lifting device is fixedly arranged in front of or behind the mineral aggregate drying and heating unit, compared with the prior art. The multifunctional forced stirring asphalt pavement maintenance vehicle has the advantages of resolving the prior roller type stirring asphalt concrete drawbacks of stirring unevenly of asphalt and mineral aggregate, unsatisfying the requirements of stirring, unevenly coated material, long stirring time, no initial drying and low work efficiency, and being suitable for maintenance of a plurality of highway asphalt pavements.
Owner:成任松 +1

Nylon tube feeder and using method thereof

The invention discloses a nylon tube feeder and a using method thereof, and belongs to enginery. The nylon tube feeder mainly comprises a feeder framework, a motive power air cylinder, a nylon tube cutter component, an auxiliary calibrated scale assembly for measuring the cutting length and a pneumatic control device for implementing cutting operation; the feeder framework is a metal support structure of the device; the motive power air cylinder for providing cutting motive power is fixed on the upper part of the feeder framework; a nylon tube cutter is installed on the lower part of the motive power air cylinder; the motive power air cylinder provides cutting motive power for the nylon tube cutter; a left fixed block and a right fixed block which are fixed on the base at the bottom of the feeder framework form a containing space, and the containing space is provided with a matched clearance for containing the vertical cutting motion of a cutter body of the nylon tube cutter; the motive power air cylinder comprises an air cylinder body and a piston rod; the nylon tube cutter comprises the cutter body and a sliding block; and the nylon tube cutter and the piston rod are fixedly connected. The nylon tube feeder is small in volume and simple in structure, and when the nylon tube is cut, the cutting quality is ensured because of the extrusion effect of the nylon tube cutter.
Owner:CHANGCHUN CHINAUST AUTOMOBILE PARTS

Flexible piezoelectric sensor and manufacturing method thereof

The invention discloses a flexible piezoelectric sensor and a manufacturing method thereof. The piezoelectric sensor structure comprises a negative electrode terminal, a first insulating packaging layer, a negative electrode layer, a flexible piezoelectric material layer, a positive electrode layer, a second insulating packaging layer, a positive electrode terminal and the like; the manufacturingof the flexible piezoelectric sensor mainly comprises that the prefabricated first insulating packaging layer and the prefabricated second insulating packaging layer are taken as carriers, the first insulating packaging layer and the second insulating packaging layer are sequentially and synchronously used for manufacturing electrode terminal mounting holes, the negative and positive electrode terminals are mounted, the negative and positive electrode layers are sprayed, a negative electrode flexible piezoelectric material layer and a positive electrode flexible piezoelectric material layer are sprayed, and the flexible piezoelectric material layer is formed through extruding and gluing, and the flexible piezoelectric sensor enters a uniform electric field for polarization. The flexible piezoelectric sensor is compact in structure, high in flexibility, integrally packaged, high in weather resistance, stable in performance and convenient to mount and maintain. The manufacturing method of the flexible piezoelectric sensor is simple and feasible in process, high in automatic production degree and high in production efficiency, and meanwhile, the flexible piezoelectric sensor with anysize is manufactured theoretically.
Owner:HUNAN UNIV OF SCI & TECH

Signal conversion equipment of remote power meter reading system

The invention relates to signal conversion equipment of a remote power meter reading system. The signal conversion equipment comprises an RS485 receiving and transmitting chip, an STM8CPU, an infrared modulation chip, an infrared demodulation chip, an infrared indicating lamp and an RS485 communication indicating lamp, wherein a group of receiving and transmitting ports are formed in the RS485 receiving and transmitting chip to the outside and are locally called by electric energy information acquisition equipment; a group of ports are respectively formed in each of the infrared modulation chip and the infrared demodulation chip to the outside and are used for interacting infrared signals with an electric energy meter; the STM8CPU is used for processing RS485 signals received by the RS485 receiving and transmitting chip and the infrared signals received by the infrared demodulation chip and performing signal transmission so as to realize data conversion under different signals; the infrared indicating lamp is used for indicating that whether the infrared demodulation chip is in a working state or not; the RS485 communication indicating lamp is used for indicating that whether the RS485 receiving and transmitting chip is in a working state or not. The signal conversion equipment can be mounted on the electric energy meter so as to convert signals, therefore, demands for acquiring the data are met, and various expenses are greatly lowered.
Owner:党彬 +5

Portable asphalt heating kettle

The invention aims at providing a portable asphalt heating kettle, which is used for pavement repair under the condition of few pavement cracks. The portable asphalt heating kettle provided by the invention comprises a kettle body, and is characterized in that an opening through which liquid-state asphalt flows out is formed in the bottom of one side of the kettle body; a flow guide groove is formed in an opening position; the kettle body is provided with clamp grooves at the two sides of the opening; a plate-shaped valve is movably arranged in each clamp groove; when the valve falls down, the opening can be sealed. The kettle body can be used for heating the inside asphalt into liquid-state asphalt; when the liquid-state asphalt needs to be poured out, the liquid-state asphalt can be poured out from the opening position only by upwards lifting the valve; after the use, the valve can be used for sealing the opening; the asphalt in the flow guide groove can condense; the upper part is exposed out, so that the cleaning is also convenient. The portable asphalt heating kettle has the advantages that through the arrangement of the flow guide groove and the valve, the problem of continuous use incapability due to the condensation of the asphalt in a kettle nozzle can be solved; the portable asphalt heating kettle is very suitable for the maintenance of pavements with few cracks.
Owner:茂名市茂南区生产力促进中心

Multifunctional positively-agitating type asphalt pavement maintenance vehicle

InactiveCN101225635BOvercoming uneven mixingShort mixing timeRoads maintainenceRoad surfaceEngineering
The invention discloses a multifunctional forced stirring asphalt pavement maintenance vehicle; wherein, a generator set, an asphalt box and an asphalt measure and feeding device, a mineral aggregate lifting device, a burner, a mineral aggregate drying and heating unit, an asphalt concrete forced stirring device, a mineral powder weighting and conveying device, a dust remover, an electric-controldevice and an accessories device are arranged in the front of the chassis of the automobile or trailer; the mineral aggregate lifting device is fixedly arranged in front of or behind the mineral aggregate drying and heating unit; the mineral powder weighting and conveying device is arranged in parallel with a side of the asphalt concrete forced stirring device; the asphalt concrete forced stirring device and the mineral powder weighting and conveying device are added and the mineral aggregate lifting device is fixedly arranged in front of or behind the mineral aggregate drying and heating unit, compared with the prior art. The multifunctional forced stirring asphalt pavement maintenance vehicle has the advantages of resolving the prior roller type stirring asphalt concrete drawbacks of stirring unevenly of asphalt and mineral aggregate, unsatisfying the requirements of stirring, unevenly coated material, long stirring time, no initial drying and low work efficiency, and being suitablefor maintenance of a plurality of highway asphalt pavements.
Owner:成任松 +1

Disassembly and assembly device of valve assembly

The invention provides a disassembly and assembly device of a valve assembly, and relates to the technical field of maintenance tools of engine parts. The disassembly and assembly device comprises a bracket, a pull rod, a safety ring and an adjusting nut, wherein the pull rod has a cylinder structure; the lower part of the pull rod is provided with a hollow cavity, and the bottom edge of the pull rod is provided with an outer edge; the safety ring is sleeved on the bottom end of the pull rod and is clamped on the outer edge; the bottom of the cavity is provided with a boss to be matched with a notch of a valve; the lower part of the pull rod is provided with a flare groove along the axis; the bracket is a cylindrical sleeve; the upper end of the bracket is provided with a through hole; the pull rod penetrates through the through hole to be arranged in the bracket; the upper part of the pull rod is provided with external thread which is matched with the adjusting nut; and the lower part of the bracket is provided with an open groove. The disassembly and assembly device is used without being limited to the place, and has the advantages of lightness and convenience in use, easiness in operation, low cost, safety, reliability, capability of reducing the labor intensity of operation workers and suitability for maintenance.
Owner:ZHEJIANG OCEAN UNIV
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