A system for applying fluid to an agricultural field includes a fluid source, a plurality of nozzles connected in fluid communication with the fluid source, and a plurality of electrically actuated valves configured to control fluid flow through the plurality of nozzles. The plurality of electrically actuated valves are divided into a plurality of groups. The system also includes a plurality of section control valves. Each section control valve is connected in fluid communication between the fluid source and a corresponding one of the groups of electrically actuated valves. Each section control valve is positionable to adjust a flow coefficient of the section control valve. The system further includes a controller configured to control the position of each section control valve to provide a predetermined flow coefficient for each section control valve based on a predetermined fluid pressure for the corresponding group of electrically actuated valves.

The present invention provides an outlet device, which comprises a main body, a slanting water body, a rotating driving element and a blocking element; one side of the main body is the inlet end, the other side is disposed with a plurality of outlet holes; the slanting water body, the rotating driving element and the blocking element are disposed in the main body; the slanting water body is disposed with a slanting outlet hole with one end connected to the inlet end and the other end connected to the rotating driving element; water flows from the slanting outlet hole to the rotating driving element and drives the rotating driving element to rotate, the rotating driving element drives the blocking element to rotate synchronously; the blocking element blocks a part of the outlet holes during the rotating and makes the position of the outlet holes in outlet state change with the rotation of the blocking element, and water flows out of the outlet device in spiral shape to form rhythmic water.

An application head of a coating product on a surface to be coated comprising at least two spray nozzles for the coating product, each spray nozzle suitable for spraying the coating product in the form of an aerosol stream, while simultaneously creating several droplets having a diameter smaller than the diameter of the outlet orifice of the spray nozzle.

The present disclosure discloses a water outlet device comprising a water outlet portion and a moving portion disposed in the water outlet portion. The water outlet portion comprises a body portion and a cover portion. The cover portion comprises a first water outlet nozzle, and the moving portion is movable relative to the cover portion. A transmission mechanism is disposed between the moving portion and the water outlet portion, and the transmission mechanism drives the moving portion to move toward the cover portion and away from the cover portion. The moving portion comprises an insertion portion. Movement of the moving portion controls the insertion portion to insert or pull out from the first water outlet nozzle, and the first water outlet nozzle discharges different water spray patterns when the insertion portion is inserted into or pulled away from the first water outlet nozzle.

Systems and methods for quenching an extrudate using an atomized spray of liquid are described. A system includes a billet die at a proximal end configured to accept a billet and form an extrudate, a quench chamber located adjacent to the billet die for receiving the extrudate and comprising at least one pulsed width modulation (PWM) atomizing spray nozzle and a control module in communication with the at least one PWM atomizing spray nozzle and configured to independently control a liquid pressure, a gas pressure, a spray frequency, a duty cycle and flow rate of each at least one PWM atomizing spray nozzle.

An energy-saving and high-efficiency shower head capable of producing a pulsating stream includes a main body having an inlet opening, an upper cover and a cover plate connected to the underside of the main body, a water-stop mechanism, and a face plate. The cover plate is formed with a water-passing chamber and a pulsating chamber having an oblique hole. The pulsating chamber is provided with at least two diversion holes to form two outlet passages. The water-stop mechanism is composed of an impeller and a water-stop piece disposed on the impeller. The water-stop piece alternately blocks one of diversion holes when the impeller rotates to intermittently open and close the outlet passages corresponding to the diversion holes, providing a pulsating stream effect.

The present disclosure discloses a self-cleaning water outlet device, which comprises: a body, a deposit removal needle plate disposed in the body, a water outlet cover comprising a plurality of water outlet holes, and a rotatable member driven about an axial direction of the rotatable member by flowing water. An axial direction of the deposit removal needle plate and an axial direction of the water outlet cover are coaxial, and the deposit removal needle plate has a plurality of needles. The deposit removal needle plate is swingably connected with the rotatable member. When water flows into the water outlet device, the water flow drives the rotatable member to rotate, and the rotatable member drives each of the plurality of needles to swing about the axial direction of the deposit removal needle plate in a corresponding one of the plurality of water outlet holes.

A nozzle capable of removing a surplus liquid material, which is adhered to outer surfaces of the nozzle and which affects a discharge operation, without undergoing a special process, and a liquid material discharge device provided with the nozzle. The nozzle (1) includes a body (2) having a liquid inflow space, and a discharge tube (4) communicating with the liquid inflow space and extending downwards from the body (2). A liquid removing member (16) is disposed at a lower end of the body (2) in a state laterally surrounding the discharge tube (4), and the liquid removing member (16) includes a groove-like space (15) that is formed between adjacent to of plural surrounding surfaces (10), and that generates capillary force acting in a direction laterally away from the discharge tube (4).

A disclosed piping manifold for providing pulsating flow includes an outer tubular member extending along a longitudinal axis. The outer tubular member includes a plurality of outer radial openings. An inner tubular member is positionable within the outer tubular member and rotatable about the longitudinal axis. The inner tubular member includes a plurality of inner radial openings, an inlet port configured to receive a fluid, and a lumen providing a fluidic pathway between the plurality of inner radial openings and the inlet port. Rotation of the inner tubular member about the longitudinal axis is configured to periodically bring the plurality of inner radial openings in and out of registration with the plurality of outer radial openings to provide a plurality of pulsating flows of the fluid out of the outer radial openings.

A method of prepping a cylindrical inner surface of a bore using a high-frequency forced pulsed waterjet apparatus entails generating a pressurized waterjet using a high-pressure water pump, generating a high-frequency signal using a high-frequency signal generator, applying the high-frequency signal to a transducer having a microtip to cause the microtip to vibrate to thereby generate the high-frequency forced pulsed waterjet, and rotating the rotatable ultrasonic nozzle inside the bore to prep the inner cylindrical surface of the bore using the high-frequency forced pulsed waterjets exiting from the angled exit orifices of the rotatable ultrasonic nozzle.