100 results about "Spray cone" patented technology

The invention relates to a double-oil-circuit fuel nozzle, in particular to a double-oil-circuit large-spray-cone-angle fuel nozzle. The double-oil-circuit fuel nozzle mainly comprises a nozzle shell body, a main oil circuit nozzle, a main oil circuit swirler and a vice oil circuit swirler. A main oil circuit swirling chamber is formed by the main oil circuit swirl and an inner cavity of the main oil circuit nozzle, a vice oil circuit swirling chamber is formed by a head cone-shaped body of the vice oil circuit swirler and a convergence taper angle of the inner cavity of the main oil circuit swirler, and a cooling air channel is designed on the main oil circuit nozzle. The problem that an aero-engine combustor is wide in fuel supply range is well resolved, a spray cone angle of the fuel nozzle is increased by 10 degrees to 15 degrees, and the effects of nozzle cooling and nozzle surface carbon deposition blowing down are achieved.

A method for producing carbon black pellets in a ring layer mixing granulator where the feed amount of unpelletized carbon black is kept constant and the water is dispensed via two nozzle holders positioned as close as possible to the inlet, each with two nozzles, where the spray cones make an angle between 10 and 90° to the direction of flow of the carbon black, at a pressure of 3-5 bar measured at the nozzles. Carbon black pellets are disclosed with an oil absorption number greater than 100 ml/100 g and an oil absorption number of the pressed carbon black greater than 78 ml/100 g, where the pellet fraction with a diameter greater than 2.5 mm is less than 3.5 wt %, the pellet fraction with a diameter of 0.71-1.0 mm is greater than 22 wt %, and the individual pellet hardness of the fraction with the 0.71-1.0 mm diameter is between 7.0 and 25.0 g. Also disclosed are carbon black pellets with an oil absorption number less than 90 ml/100 g, and an oil absorption number of the pressed carbon black less than 78 ml/100 g, where the pellet fraction with a diameter of 0.71-1.0 mm is less than 30 wt % and the individual pellet hardness of the fraction with the 0.71-1.0 mm diameter is between 7.0 and 25.0 g. The carbon black pellets can be used in polymer and rubber mixtures, paints, dyes or pigments.

The invention relates to a nozzle for a direct-injection engine in the technical field of automobile engines, which comprises a shell, a valve rod, an oil-injection hole, an oil supply hole and oil ways, wherein the oil-injection hole and the oil supply hole are arranged at both ends of the shell respectively; the oil way is positioned in the shell, and both ends of the oil ways are connected with the oil supply hole and the oil-injection hole respectively; one end of the valve rod is arranged inside one side of the shell close to the oil supply hole and is positioned at the center of a plurality of oil ways. The nozzle enables fuel to generate swirl, can ensure the large spray cone angle (namely dispersibility) under the low injection pressure and high backpressure, and simultaneously, avoid undesirable tip injection of atomization, so that the atomization performance of the nozzle is improved.

The invention relates to a structure and a design method of an atomizer applied to agricultural equipment for plant protection, in particular to an anti-drift method of an atomizer applied to miniature motorized agricultural equipment for plant protection and an anti-drift electrostatic atomizer. The anti-drift method of the atomizer comprises the following steps: a. arranging the atomizer which can enable liquid medicine to atomize and spray; b. sleeving an air flow pipe coaxially at the periphery of a fluid pipe of the atomizer and encircling an air flow nozzle at the front end of the air flow pipe at the periphery of a liquid medicine nozzle of the atomizer and using a cyclone device to rotate the air flow before the air low reaches the air flow nozzle; and c. enabling the spray cone angle of the air flow to be larger than the atomization cone angle formed in atomization of the liquid and enabling the spray pressure of the air flow to be larger than the spray pressure of the liquid. The anti-drift method of the atomizer can prevent drift of fogdrops and enhance the atomization application effect. The atomizer has simple structure, small size and good atomization application effect and can prevent drift of fogdrops.

The invention discloses a robot spray gun trajectory setting method in copper plate spraying operation. The method comprises the steps that a spray gun spraying area is set, wherein the geometric model of the area is a spraying cone; spraying mediums and related parameters of a spray gun are set; the area and the radius of the spraying area and the thickness of a coating are acquired; the stacking range of the spraying area is calculated; according to a spraying angle of the spray gun and the distance between the spray guns of all spraying areas, the stacking distance between adjacent spraying areas is acquired; for a copper plate corner angle, the spray gun is always vertical to an arc face of the copper plate corner angle; in adjacent spraying areas, the spray gun rotates an angle of beta by taking the axis of the corner angle arc face as the circle center; a robot spray gun trajectory database is established and related parameters of the spray gun trajectories of the database are programmed into a spray gun trajectory subprogram; and the trajectory of the spray gun runs according to the setting of the subprogram. According to the method, through the acquired robot spray gun trajectory, an optimization target of the robot spraying operation is realized; the uniformity and the quality of the coating are effectively improved; the spraying cost is reduced; and the spraying efficiency is improved.

The invention discloses an inner cycle collision mixed type soil repair device which comprises a processing box, wherein the processing box is a cylindrical barrel, wherein a lifting barrel is arranged at the middle position of the upper end of the processing box in a penetrating manner, a rotating bearing matched with the lifting barrel is arranged at the upper end of the processing box, a supporting ring is arranged in the bottom of the processing box, a material collecting box is arranged in the middle position of the supporting ring, the lower end of the lifting barrel stretches into the material colleting groove, and a lifting shaft is arranged in the axis position in the lifting barrel. By crushing materials circumferentially and screening the materials through a filter barrel, the sizes of the materials are qualified when the materials are repaired, so that the materials are in full contact with a repair solution in the later period; the materials then upwell along the lifting barrel through lifting blades and collide with a material spraying cone which sprays the repair solution, so that the dispersion degree of the materials is enhanced; the materials are in contact with the repair solution sprayed from the nozzle conveniently, so that the repair effect is improved and the practicality is high.

The invention provides a device for measuring a spray cone angle, comprising a spraying room (1), a camera (2) and a spot light (3), wherein the spraying room (1) is internally provided with a nozzle (5); the camera (2) is used for photographing the spray cone angle of the nozzle (5); and the spot light (3) is mounted on the side wall of the spraying room (1). According to the device, by reasonably arranging the position of the spot light and adjusting the brightness of the spot light, the boundary of conical spraying is clearer, so that the accuracy of the measurement is greatly improved.

The invention discloses a start fuel supply control method and system for a micro gas turbine, and is used for fuel supply control in the start process of the micro gas turbine. The micro gas turbine adopts a centrifugal atomization fuel nozzle, fuel is supplied to the centrifugal atomization fuel nozzle through a fuel control unit, atomized by the centrifugal atomization fuel nozzle, and ignited for combustion in a combustion chamber; the fuel supply requirements of the micro gas turbine in plain and plateau application scenarios can be met through adjusting the flow amount and/or a spray cone angle of the centrifugal atomization fuel nozzle. According to the method and system, under the condition of not changing technical parameters of the fuel supply control unit, the flow pressure characteristics of the fuel nozzle can be changed, the start fuel flow can be reduced, the gas-fuel ratio of ignition start can be increased, the fuel pressure in front of the nozzle can be increased, the atomization performance is enhanced, and the plateau ignition start performance is enhanced, and thus the fuel supply characteristic requirements of the micro gas turbine in high altitude application can be met and the operation field range of the micro gas turbine is widened.

A premix burner, for example for a gas turbine, having a conical swirl generator (1) and a cylindrical mixing section (2) which follows it in the direction of flow, includes a high-pressure atomizer nozzle (10) with one or more fuel feed passages. The high-pressure atomizer nozzle (10) includes at least two outlet passages, through which liquid fuel enters the swirl generator (1), these passages being arranged off-center with respect to the longitudinal axis of the nozzle and being configured in such a way that the spray cone (11) of the fuel is oriented at an angle (β) with respect to the longitudinal axis of the swirl generator (1) which is smaller than the cone half-angle (α) of the swirl generator (1). The outlet passages in particular have an internal geometry with a conically narrowed section.

The invention belongs to the technical field of aero-engine combustor, and particularly relates to a large extension spray cone-angle slinger ring atomizer structure. An effective mean to improve thethermal efficiency of a small turbine engine is to improve the mixing of the head portion of a flame tube. The invention provides a large extension spray cone-angle sling ring atomizer technology, a swirl structure is added at a nozzle of a slinger ring atomizer, and under the action of centrifugal force of the slinger ring atomizer, fuel can leave the slinger ring atomizer in the form of swirlingflow; and on the basis of good atomization, the injection angle of the fuel is increased, the residence time of the fuel in the flame tube is increased, the oil and gas mixing is enhanced and the combustion efficiency is improved. An optimization design of corresponding parameters of various combustion organizations is carried out for the purpose of simple machining and high combustion efficiency, and a simple and efficient slinger ring atomizer structure is obtained.

An internal combustion engine has at least one combustion chamber which may be closed by an intake valve, at least one air intake port which leads to the intake valve, and a fuel injection device which in association with the at least one combustion chamber has a first injector and a second injector for the metered injection of fuel into at least one intake port. To achieve significantly improved mixture preparation and combustion of the fuel-air mixture in the combustion chamber, the two injectors are configured such that the first injector injects a widely divergent spray cone having a large cone angle, and the second injector injects an only slightly divergent spray cone having a much smaller cone angle.

The invention discloses a multifunctional atomization test system. The system comprises a high-pressure atomization test system, a normal-pressure atomization test system and a propellant supply system; the high-pressure atomization test system comprises a high-pressure atomization cabin and a first spray cone angle measuring device; the normal-pressure atomization test system comprises a normal-pressure spray device, a second spray cone angle measuring device and a spray particle size measuring device; the normal-pressure spray device comprises a nozzle and a nozzle height adjusting frame; the spray particle size measuring device comprises a height lifting frame, a sliding rod and a laser particle analyzer; and the propellant supply system can be used for providing gas-liquid or liquid-liquid two-component propellants for a nozzle in the high-pressure atomization cabin or a nozzle on the nozzle height adjusting frame. With the system adopted, atomization tests in various environments such as a normal-pressure atomization test, a high-back-pressure atomization test and an atomization test under flow pulsation can be carried out, atomization tests of various spraying media can also be carried out, and the spray cone angle and the liquid film breaking length can be accurately measured.

The invention discloses a GDI gasoline engine spray wall-impingement parameter automatic extraction method and system based on machine vision. The method comprises the following steps: step 1, background separation; 2, hierarchical binarization based on wavelet transform; 3, extraction of spray wall-impingement parameters: 3.1, extraction of a spray penetration distance L; 3.2, extraction of a spray cone angle theta; 3.3, extraction of a spraying radius r; and 3.4, extraction of a spray height h. The automatically extracted spray wall-impingement parameters can accurately reflect the spray wall-impingement development trend, the parameter values are basically consistent with those in a manual calibration result, the error is small, and the spray wall-impingement parameters can be automatically, rapidly and accurately extracted.