12 results about "Spray characteristics" patented technology

The invention discloses a method for predicting spraying characteristics of an internal combustion engine. The method comprises the following steps: establishing an original data set comprising data of working condition parameters and data of spraying characteristic parameters; calculating the deviation between the measured value and the calculated value of the existing spray characteristic formula, and correcting the existing spray characteristic formula; constructing a physical constraint system of spraying characteristics; extrapolating and expanding by adopting a Gaussian process regression method; performing interpolation enhancement by adopting a generative adversarial network; constructing a spray prediction model through deep learning; according to the method, an existing spraying characteristic formula is corrected through the deviation value, and the data expansion accuracy is improved; the limitation of small sample experimental data is effectively solved through data enhancement, Gaussian process regression extrapolation with priori knowledge is utilized to expand and cover limit working conditions, a correction formula and physical constraints are added into a generative adversarial network, details are further complemented, data breakpoints are eliminated, and a high-quality data set is constructed. And the generalization ability, the prediction precision and the physical rationality of the deep learning model are improved.

The invention is directed to a method and apparatus (150) for determining a spray characteristic of a test coating material sprayed onto a test substrate using a spraying device operated in accordance to a predetermined set of spray parameters (124), that comprises receiving thickness data (126) associated with thickness distribution obtained by spraying the coating material on a test substrate using the predetermined set of spray parameters, and determining and providing, using the received thickness data, film build kernel function data (127) indicative of a film build kernel function associated to a circularly-symmetric spray pattern and representing the spray pattern associated to the predetermined set of spray parameters. The use film build kernel function data enables a cost efficient process for troubleshooting and / or optimizing the spraying process of a coating material on a substrate.

The application discloses a double-valve oil injector reliability test system, and belongs to the technical field of monitoring of test systems, and comprises a fuel supply and recovery subsystem, an oil tank, an oil injection part, an oil injector tool and a control unit, the inlet end of the oil injection part is communicated with the oil tank, the outlet end of the oil injection part is communicated with the oil inlet end of the double-valve oil injector through the oil injector tool, the oil injector tool is further used for bearing the oil injector and taking fuel, and the control unit is used for controlling fuel pressure, fuel injection amount and fuel injection frequency; and a monitoring subsystem is used for controlling and monitoring the operation of the fuel supply and recovery module and comprises an image acquisition module, wherein the image acquisition module is used for acquiring spray characteristic images of the double-valve oil injector. The application can timely monitor whether the double-valve oil injector leaks oil.

This utility model discloses a spray gun for a sludge direct injection and co-firing system, including a sludge conveying pipe. An atomizing nozzle is provided at the end hole of the sludge conveying pipe, and a sludge inlet connector is provided at the middle left side of the upper end of the sludge conveying pipe. This utility model uses two compressed air streams to simultaneously blow and push the sludge at multiple points and angles. By optimizing the size, number, distribution, and tilt angle of the airflow nozzles, it solves the problems of poor atomization effect of sludge material dispersion and even obstruction of sludge flow. In addition, by optimizing the cross-sectional size of the flow channel between the outer conical surface of the nozzle seat and the inner hole surface of the nozzle sleeve along the entire flow path of the air-sludge mixture, it achieves good uniformity of air-sludge mixing and good spray characteristics of the air-sludge mixture. Its structure is simple, the atomization effect is good, the reliability of use is high, and it can ensure complete combustion of sludge. It has wide applicability in this technical field.

This invention belongs to the technical field of gas turbine combustion chamber test devices, and discloses an optical measurement device for the spray characteristics of a gas turbine combustion chamber based on window heating. The device includes a combustion chamber, with an inner groove annular plate installed on one side of the top of the combustion chamber. An annular sliding plate is rotatably connected to one side of the inner cavity of the annular plate, and an annular rack is fixedly connected to one side of the annular sliding plate. In this invention, turning on the motor causes the annular rack to mesh with a gear, driving a threaded rod to rotate. As the threaded rod rotates, it causes a slider to slide within the output groove. This slider then moves a moving plate and a metal scraper. The metal scraper, through the elasticity of a spring, contacts the surface of the inner layer of the double-layered glass. During movement, the metal scraper cleans the carbon deposits adhering to the inner layer of the double-layered glass, preventing these deposits from affecting the clarity of the optical measurements.

The invention relates to the technical field of high-pressure pumps, and discloses a normally-open high-pressure pump which comprises an outer shell, a pressure cavity is formed in the outer shell, a plunger component located in the outer shell is installed below the pressure cavity, and an electric control component located in the outer shell is installed on one side of the pressure cavity. A pressure cavity is formed in one side of the outer shell, a valve body component located in the outer shell is installed on the other side of the pressure cavity, a buffering component is installed at the top end of the outer shell and comprises an upper shell body and a buffering cavity, and the upper shell body is fixedly installed on the upper surface of the outer shell body. Through cooperation of the overall structure of the device, multiple key parameters such as the spraying characteristic, the response speed, the fuel injection rate and the reliability of the system are achieved, and due to the fact that the fuel injection system has the characteristic that fuel injection timing, the fuel injection duration, the fuel injection pressure and the fuel injection rule can be flexibly adjusted; by means of the device, the economical efficiency, the dynamic property and the emission performance of the engine can be further improved.

Provided are a two-fluid nozzle, an inner nozzle member, and an outer nozzle member that suppress variations in spray characteristics. A two-fluid nozzle (1) is provided with: a guide section (6) which is capable of relatively displacing an inner nozzle (10) and an outer nozzle (70) in a first direction (101) by sliding between the inner nozzle (10) and the outer nozzle (70), and which regulates the relative displacement of the inner nozzle (10) and the outer nozzle (70) in a second direction (102) orthogonal to the first direction (101); and a holding part (9) capable of restricting the relative position of the inner nozzle (10) and the outer nozzle (70) in the first direction (101).

The application discloses an optical measuring device and a test method for a nozzle test cabin, and belongs to the technical field of nozzle atomization characteristic testing. The optical measuring device comprises a guide rail assembly, a camera, a light source and a laser particle size analyzer. The guide rail assembly comprises a first guide rail and two second guide rails arranged in parallel with each other. The camera, the light source and the laser particle size analyzer are respectively movable along the corresponding guide rails through a moving platform. The light source is arranged on the second guide rails and is oppositely arranged, and is used for forming an illumination area for spray imaging in the nozzle test cabin. The emitting end and the receiving end of the laser particle size analyzer are arranged on different second guide rails respectively, and are used for forming laser rays passing through the spray area of the nozzle. The application can realize continuous testing of various spray characteristics under the same test working condition and unified spatial reference, and improve the spatial consistency and repeatability of the test results.

There is provided a system and method for determining spray characteristics of a powder or liquid spray. The method including: receiving spray characteristics of the powder or liquid spray; generating a spray map comprising correlating the received spray characteristics to spray application characteristics, operational parameters of a spray apparatus, or both, the correlations determined using a calibration of the scanning measurements; and outputting the spray map. In a particular case, the method further including adjusting operational parameters of the spray apparatus to achieve a specific performance of application of the spray using the spray map.

The invention relates to an aerosol model analyzer, which relates to the technical field of inhalation and nasal preparation spray characteristic determination and evaluation equipment, and comprises a protection device, a trigger device, a laser device, an imaging device and a control analysis device, the protection device is used for providing a dark environment for the laser device and the imaging device; the triggering device is used for triggering the nasal preparation or the inhalation aerosol preparation; the laser device is arranged opposite to the trigger device and is configured to irradiate spray formed by the trigger device and form a laser lamp plate when the trigger device works; and the imaging device is used for shooting the spray. According to the aerosol model analyzer, the aerosol model analyzer capable of accurately measuring the inhalation and nasal preparation spraying mode and plume geometry and analyzing parameters is arranged, so that the requirements of analysis and test of the inhalation aerosol preparation and the inhalation aerosol preparation are met.

The invention discloses a data processing method and device for an injection system in a vehicle and the vehicle, and the method comprises the steps that current state information of the injection system is determined, and the current state information is used for representing the working state of the injection system; based on the current state information, injection data of the injection system are corrected, first injection data are obtained, and the injection data are used for representing injection characteristics already possessed by a tail gas treatment object injected by the injection system; a processing strategy of the first injection data is determined, and the processing strategy is used for representing a rule for processing the first injection data; based on the processing strategy and the first injection data, second injection data of the injection system are determined, and the second injection data are used for representing to-be-possessed injection characteristics of the tail gas processing object injected by the injection system. The technical problem that the failure rate of an injection system in a vehicle is high is solved.

To provide a two fluid nozzle in which variation in spray characteristics is suppressed.SOLUTION: The two fluid nozzle 1 includes the guide portion 6 in which the inner nozzle 10 and the outer nozzle 70 can be relatively displaced in the first direction 101 by the sliding between the inner nozzle 10 and the outer nozzle 70 and the relative displacement between the inner nozzle 10 and the outer nozzle 70 is restrained in the second direction 102 orthogonal to the first direction 101, and the holding portion 9 in which the relative position between the inner nozzle 10 and the outer nozzle 70 can be restrained in the first direction 101.SELECTED DRAWING: Figure 1