Abstract:
Exemplary illustrations directed to a rotary piston pump, e.g., for metering a coating agent in a coating installation, as well as exemplary methods of using the same, are disclosed. An exemplary piston pump may comprise a plurality of pump units, each having one cylinder and one rotary piston which carries out a wobbling or tumbling movement in the cylinder.
Abstract:
Such apparatuses are used for discharging active substances along with various carrier media, water often being used as a carrier medium. In order to ensure that the water perfectly nebulizes together with the active substance, the mist pipe (10) comprises at least three additional pipes (3 to 6) which partly surround each other to form annular chambers (31 to 33). Such a mist pipe (10) allows the size distribution of the drops to be kept within narrow limits even when water is used as a carrier medium. The nebulizer and the mist pipe (10) are mainly used in the health sector, in agriculture, plantations and greenhouses, for protecting supplies and for disinfection purposes on humans, in animal husbandry, and in food production.
Abstract:
The present invention provides, inter alia, an apparatus for generating a mist. The apparatus includes (a) a first transport fluid passage having a first transport fluid inlet, a first transport fluid outlet, and a throat portion intermediate the first transport fluid inlet and the first transport fluid outlet, the throat portion having a cross sectional area which is less than that of either the first transport fluid inlet or the first transport fluid outlet; (b) at least one working fluid passage located radially outwardly of the first transport fluid passage and having a working fluid inlet and a working fluid outlet; (c) at least one second transport fluid passage having a second transport fluid inlet and a second transport fluid outlet in fluid communication with the working fluid passage; and (d) an outlet nozzle in fluid communication with the first transport fluid and working fluid outlets, wherein the second transport fluid passage has an outlet located in the working fluid passage upstream of the working fluid outlet. Systems and methods of generating a mist using such an apparatus are also provided. Methods for fire suppression and decontamination using such an apparatus are further provided. Mists generated using such an apparatus are further provided.
Abstract:
The proposed group of inventions relates to methods and devices for creating a gas-drop jet used for fire-fighting.The proposed inventions may be used for suppressing turbary, forest fires, fires in high-altitude buildings, etc. since they provide an increase in speed of extinguishing jet and a long range, thus raising the extinguishing properties of a jet.The aims of the proposed group of inventions are as follows: Creating an efficient stand-alone modular installation, allowing to obtain a jet of extinguishing fluid with an increased range and speed of flight and to use it independently or and in a complete set with various delivery vehicles (a car, a plane, a helicopter, etc.); Improvement of the thermodynamic cycle of the fire-fighting installation using gas turbine engine, and increase of its efficiency; Replacement of air containing an oxidizer (oxygen), used for creating a gas-drop jet, by products of combustion that are containing almost no oxidizer. The technical result in the proposed invention is obtained due to making a method for creating a gas-drop jet, including supply of fluid and gas working medium created using a gas turbine engine.The technical result in the proposed invention is obtained due to making a method for creating a gas-drop jet, where according to present invention, the turbine of the gas turbine engine is supplied with at least one outlet of gas working body located between its stages and connected to at least one heat exchanger and a cooler for the gas working medium of the installation.
Abstract:
A multi-cartridge powered dispenser includes a frame having base and top cartridge supports, wheels and a handle. A piston/cylinder is mounted on the frame and at least three cartridges are clamped between the support plates. Each cartridge has a shuttle at the lower end and a discharge opening at the upper end. The piston/cylinder assembly has push rods extending through the base support to move the shuttles in the cartridges. A pressurized fluid supply conduit is connected to the piston/cylinder, and a valve in the fluid supply conduit controls the flow. Discharge cannulae communicate with the outlets the cartridges. Discharge conduits extend between the cannulae and a handpiece for applying the contents of the cartridges to a work surface. The application handpiece can be a sprayer, a roller applicator, or a pour/extrude applicator.
Abstract:
A system for assisting in the atomisation of liquid particles conveyed in a gas stream flowing along a flow path having a rigid boundary, said system involving the creation of one or more shock waves in the gas stream. In a preferred embodiment, the system comprises a fuel injection nozzle (10) comprising a fluid flow passage (43) terminating at a discharge orifice (15) and incorporating a delivery port (33) defined between a valve seat (31) and a valve member (23) movable with respect to the valve seat for opening and closing the delivery port. Fuel is delivered along the fluid flow passage (43) into a combustion chamber through the discharge orifice (15) upon opening of the delivery port (33). The valve member (23) devines an inner boundary surface (47) of the flow passage (43) and the valve seat (31) defines at least part of an outer boundary surface (45) of the flow passage (43). The inner and outer boundary surfaces (47, 45) are configured to generate one or more shock waves in an air-fuel mixture flowing at supersonic speed therebetween.
Abstract:
An apparatus for creating a fine liquid mist includes a container capable of holding fluid; one of a perforated basket and a porous bag disposed in the container; a liquid supply connector connected to the container; a mixing chamber connected to the container; and at least one convergent/divergent nozzle connected to the mixing chamber. A method of forming an effervescent fine liquid mist includes mixing liquid and chemical reactant to form non-toxic, noncombustible gas bubbles; mixing the liquid and the gas bubbles to form a two-phase fluid flow; and directing the two-phase fluid flow through at least one convergent/divergent nozzle.
Abstract:
The invention is directed to a method and apparatus for coating substrates by a liquid spray so as to avoid entrapment of gaseous bubbles, particularly air bubbles, in the coating and desirably to thereby obtain bubble-free coatings. More particularly, the invention involves spray applying the coating to a substrate in an atmosphere consisting of gases having appreciable solubility in the applied coating, such as carbon dioxide, such that gas bubbles that may become entrapped in the coating are removed after application by the gases dissolving into the coating and diffusing to the surface.
Abstract:
A method for coating a substrate with a relatively thin, uniform film of a fluid with a minimum of waste. A volume of fluid is produced and the size and velocity of the volume of fluid are selected such that the volumes of fluid break up upon impact with the substrate without splashing or rippling. The apparatus and method are ideal for coating semiconductor wafers with a photoresist solution. The kinetic energy of the volume of fluid is adjusted to overcome the free energy associated with surface tension on impact. The collision of the fluid thus results in a uniform, thin coating of photoresist or other coating solution which may then be further processed by conventional techniques.
Abstract:
A spray nozzle which has a nozzle main body and opening at one end in fluid communication with an inflow hole passing into the central portion of the nozzle main body. The inflow hole has a rounded orifice portion in fluid communication with an elongated discharge slot at an opposite end of the nozzle main body. Stirring channels extend along and are in fluid communication with the inflow hole. Each stirring channel has a cup-shaped end which is laterally adjacent the rounded orifice portion of the inflow hole. The cut-shaped portion of the stirring holes causes a reverse flow of mixed gas and liquid which passes down the stirring channels such that mixed gas and liquid passing through the inflow hole towards the elongated discharge slot is agitated and a uniform spray with fine droplets is jetted from the discharge slot.