A fan-shaped air suction spray nozzle automatically adjusting an air suction speed is provided in the present invention, which includes a spray nozzle body and a liquid channel, the spray nozzle body being provided with a liquid channel in communication with a nozzle hole, and further includes a pressure groove and an air intake channel, wherein an inlet section of the liquid channel is in communication with the pressure groove, and the air intake channel is in communication with the liquid channel after penetrating through the pressure groove; an air intake orifice plate is installed in the pressure groove through an elastic damping apparatus, and a change of the pressure at an inlet of the liquid channel causes the air intake orifice plate to move between the pressure groove and the air intake channel; the air intake orifice plate is provided with several through holes of the same or different sizes, which are configured to change the air intake volume in the liquid channel as the air intake orifice plate moves in the pressure groove.

Systems and methods for applying a liquid coating to a substrate are disclosed herein. One exemplary method includes calibrating flow rate of a material through a coating system. A target flow rate for the material through a spray nozzle is received, a first operating pressure of the coating system based upon the target flow rate is calculated, and the material is ejected onto a least part of a surface with the material flowing through the spray nozzle at the first operating pressure of the coating system. Subsequent to a comparison between an operating flow rate and the target flow rate, the operating pressure is adjusted to a second operating pressure and at least part of the substrate is sprayed with the material flowing through the spray nozzle at the second operating pressure of the coating system.

Inkjet printing systems and methods dynamically control meniscus pressure at a nozzle to more reliably deliver ink to a substrate. The systems and methods include inferring an angle of a longitudinal axis of a printhead relative to the vertical reference axis based on an orientation signal from an orientation sensor, determining a target feed fluid pressure upstream of the nozzle and a target recirculation fluid pressure downstream of the nozzle, thereby to maintain a target pressure differentiation across the nozzle based, at least in part, on the inferred angle of the longitudinal axis, and controlling a variable feed pump speed and a variable recirculation pump speed to obtain the target feed fluid pressure and the target recirculation fluid pressure.

A method includes receiving a current data sample relating to a tractor spraying in an agricultural block, wherein the current data sample includes a current location; calculating a shortest distance from the current location to each of a plurality of borders of the agricultural block; selecting a current sample lowest distance, the current sample lowest distance being a lowest one of the shortest distances; grouping the current data sample with at least one prior data sample to produce a line of data samples, wherein each of the at least one prior data sample has a corresponding prior sample lowest distance; calculating an average lowest distance for the line of samples; comparing the average lowest distance to a threshold distance; and discarding the current data sample and each of the at least one prior data sample if the average distance is less than the threshold value.

According to examples, an apparatus may include a first pressure sensor to measure a first pressure level at a first height within a particulate material contained in a container and a second pressure sensor to measure a second pressure level at a second height within the container, in which a gas is to be supplied into the particulate material at a predefined velocity, wherein the first pressure sensor is to measure the first pressure level and the second pressure sensor is to measure the second pressure level while the gas is supplied into the particulate material at the predefined velocity. The apparatus may also include a controller that may determine a pressure gradient from the first pressure level and the second pressure level and calculate a height of the particulate material in the container from the determined pressure gradient.

One aspect of the present disclosure relates to an apparatus for manufacturing a skin care pack. According to an aspect of the present invention, the apparatus for manufacturing a skin care pack may be provided, the apparatus containing: a housing for providing a working space for forming a skin care pack; a film moving module provided to be movable in one direction within the working space, and having a base on which a film is mounted; a molding machine provided to be movable within the working space in two directions perpendicular to the one direction, and including at least one nozzle module for discharging hydrogel to the base; and a controller for controlling movement of the film moving module and the nozzle module, and controlling discharge of the hydrogel from the molding machine.

A solenoid valve in a manifold is commanded to move to a closed position. Upon activating a pump to supply fluid to the manifold via a supply line, a first pressure is determined in the supply line after commanding the solenoid valve to move to the closed position. Upon deactivating the pump to stop supplying fluid to the manifold, a second pressure is determined in the supply line. Based on a difference between the first pressure and the second pressure, the solenoid valve is determined to be one of (a) at least partially open or (b) in the closed position.

Methods and systems for coating with shear and moisture sensitive materials are disclosed. A method of coating a product includes filling an inner bellows chamber of a bellows, which is provided within and isolated from an outer bellows chamber of a tank, with a predetermined amount of the coating material. The method of coating the product further includes supplying a pressurized material to the outer bellows chamber to pressurize the coating material within the inner bellows chamber to an operating pressure, and supplying the coating material within the inner bellows chamber to a spray gun at the operating pressure. The method of coating also includes determining that a measured actual pressure is within a predetermined control range of the target pressure and subsequently coating the product by spraying the product with the coating material from the spray gun.

A distributed pump system is disclosed. The distributed pump system comprises a supply source and a support structure arranged on or proximate an agricultural vehicle. At least two fluid distribution elements are mounted to the support structure and are coupled at an inlet to a first conduit to provide fluid communication between the fluid distribution elements and the supply source. An application system including at least two application units is coupled to one or more of the fluid distribution elements by a second conduit. A first monitoring device is associated with a respective application unit and fluid distribution element, and is configured to sense a downstream flow parameter of the second conduit and generate a corresponding output signal. An electronic control unit is communicatively coupled to each of the fluid distribution elements and is configured to dynamically adjust an input parameter of one or more of the fluid distribution elements.

An apparatus that produces and dispenses foam comprises a housing, an adjustable water flow member, an adjustable foam concentrate flow member, a first mixing chamber comprising an outlet, a water pressure reducing member with a portion thereof disposed within the first mixing chamber, a second mixing chamber in a communication with the outlet from the first mixing chamber, an air pressure reducing member with a portion thereof disposed within the second mixing chamber, a third mixing chamber in a communication with an outlet from the second mixing chamber, the third mixing chamber comprising a port in a communication with an external environment to the housing, and a screen member disposed within the third mixing chamber and configured to convert a mixture of air, water and foam concentrate exiting the outlet of the second mixing chamber into the foam, the foam being dispersed through the port during operation of the apparatus.