A spray-head assembly includes a pipe structure and a valve-spool. The pipe structure includes a liquid inlet, a flow pathway, and a valve-port. The flow pathway includes an air-flow pathway arranged obliquely with respect to a central axis of the liquid inlet. A bottom end of the air-flow pathway communicates with the liquid inlet. The valve-port is arranged at a top end of the air-flow pathway. The valve-spool is arranged in the flow pathway and configured to control opening and closing of the valve-port.

This disclosure relates to a showerhead including a body, a stationary plate, a spring, and an insert fitting member. The body has an upper body and a lower body. The upper body and the lower body form an accommodation space. A water inlet for supplying water into the accommodation space is provided at the upper body, and a plurality of water outlets for spraying water from the showerhead are provided on the lower body. The stationary plate is located in the accommodation space and movable up and down in the accommodation space along a direction of the water flow. The spring is disposed between the stationary plate and the lower body, for applying a force to the stationary plate away from the lower body. The insert fitting member is fitted to the stationary plate. The position of the insert fitting member corresponds to the plurality of water outlets on the lower body. When the water is supplied, the stationary plate moves to a lower position under the action of water pressure, and the insert fitting member partially closes the water outlet to form a drizzle-type spray; and when the water is turned off, the spring pushes the stationary plate back to the upper position, and the water outlet plug leaves the water outlet.

A spray bar injector including a spray bar defining a longitudinal axis and including a fluid inlet and a plurality of spray outlet orifices spaced apart longitudinally in a direction along the longitudinal axis. A check or spray valve is operatively connected to each spray outlet orifice. A master valve is in fluid communication with the fluid inlet, operatively connected to divert flow from the fluid inlet into a first passage and block flow into a second passage in a first position to open the check valves and issue a spray from the spray outlet orifices, and to divert flow from the fluid inlet into the second passage and block flow into the first passage in a second position to close the check valves and block issue of spray from the spray outlet orifices.

A fluid sprayer includes a pump and an electrostatic module configured to provide an electrostatic charge to spray fluid. The electrostatic module is electrically connected to a conductive component of the fluid sprayer, such as a fluid displacement member, fitting, cylinder, or spray tip, to charge the spray fluid via the conductive component. The fluid is electrostatically charged prior to exiting the fluid sprayer.

An atomizer device for atomizing a liquid under increased pressure, comprising an atomizer body 14 with one or more atomizing openings from which a mist formed from the liquid escapes during operation. The device comprises a valve device 20, 30 upstream of the atomizer body. The valve device 20, 30 comprises a valve cavity 31 with a valve body 32 and a spring chamber 21 in which spring means 22 are compressible counter to a spring tension. The valve body 24 receives the liquid in valve cavity 31 with a first operative cross-section D1, which first operative cross-section is smaller than a second operative cross-section D2 of spring chamber 21 in which spring means 22 are compressible.

A nozzle configured to receive and disperse a high-pressure fluid or a low-pressure fluid is disclosed. The nozzle includes a nozzle body defining an open end, a closed end, and a side wall connecting the open end to the closed end, where the open end of the nozzle body configured to receive either the high-pressure fluid or the low-pressure fluid. The side wall defines a plurality of low-pressure apertures, a plurality of high-pressure apertures, and a compressible member positioned within the nozzle body. The plurality of high-pressure apertures are positioned downstream from the plurality of pressure apertures. The low-pressure apertures are smaller in size by a predefined ratio when compared to the high-pressure apertures. The compressible member is in an expanded position and blocks the plurality of high-pressure apertures when the open end of the nozzle body receives the low-pressure fluid.

A device is described for protecting a sensor window. The device includes a two-piece nozzle system and is configured for generating a first and a second fluid flow, a first piece of the two-piece nozzle system being fixedly situated with respect to the sensor window, and a second piece of the two-piece nozzle system being configured for assuming different positions with respect to the first piece of the two-piece nozzle system, and the two-piece nozzle system being aligned with respect to the sensor window to direct a predominant portion of the first fluid flow in parallel to the sensor window and to direct a predominant portion of the second fluid flow in the direction onto the sensor window.

A fire extinguisher discharge nozzle is provided and includes sidewalls and a biasing element. The sidewalls define an aperture through which a medium(s) is dischargeable and are adjustable between multiple first and multiple second positions associated with dilated and constricted conditions of the aperture, respectively. The biasing element is configured to bias the sidewalls toward assuming one of the multiple first or multiple second positions. The sidewalls are drivable toward assuming the other one of the multiple first or multiple second positions in opposition to bias applied by the biasing element in accordance with a characteristic of the medium(s).

A liquid pressure regulator includes a housing having an inlet portion and an outlet portion, a tubular valve member slidingly accommodated inside the housing and having an inlet edge, a valve body fixed inside the housing and a seat that interacts with the inlet edge to form a port having a variable width, and an elastic annular diaphragm for connecting the valve member to the housing and forming a regulating chamber. The valve member has an outlet edge configured to interact with the outlet portion of the housing and form an annular passage communicating with the regulating chamber. The width of the annular passage decreases as the inlet edge of the valve member moves toward the seat. The outlet portion has a wider region with a transverse surface defining the bottom of the regulating chamber, which is inclined toward the center to facilitate the outer discharge of soil, sand and impurities.

A valve assembly having a conical valve needle axially displaceable in a bore of a valve body wherein a portion of the larger diameter of the valve needle seats downstream at an annular ring when the valve is closed. There is an open area between one end of the valve body to the annular ring even at closure and nozzles for the input of a liquid. The inner wall of the valve body comprises at least one opening for the entry of a liquid under pressure following output of a slurry or liquid from a tube or pipe. The valve assembly is particularly useful in maintaining a semi-continuous or continuous pressurized flow of biomass from an extruder.