The water-saving nozzle has an outer housing that includes an outer vortex screw in operative engagement with an inner housing that is disposed inside the outer housing. The vortex screw has helical threads. The inner housing has an inner vortex screw with outside helical threads. When water passes through the outer and inner vortex screws the water is rotated before the water passes into the vortex chambers of the inner and outer housings. The water discharged from the outer housing forms an outer dome shape and the water discharged from the inner housing forms an inner dome shape inside the outer dome shape.

A mixing valve assembly includes a valve housing defining an interior, a cold inlet along a first axis, a hot inlet, and a mixed outlet. A metering ball within the interior rotates about the first axis. The metering ball has an outer shell defining: a cold port aligned with the cold inlet; a hot port selectively aligned with the hot inlet; a cold outlet connected to the cold port; and a hot outlet connected to the hot port. Rotation of the metering ball aligns the hot port with the hot inlet, the cold outlet with the mixed outlet, and the hot outlet with the mixed outlet to varying degrees. The metering ball has a central flowpath for hot water and a radially outward flowpath for cold water.

A high flow valve for use in conjunction with a compressed gas, an aerosol or in bag-on-valve applications, and particularly to a valve having a housing that is supported by a mounting cup for a product container or can, and communicates with a product or product containment bag inside the can. A radial opening or orifice of the valve is positioned closer to a lower seal of the valve stem, rather than an upper seal or mounting cup gasket, to facilitate an increased flow rate for dispensing the product from the container and the valve.

A dispensing unit (100) for controlling flow of a substance (101) comprises a nozzle (102) and a plug (110). The nozzle comprises an outlet (122) and a channel (104) that comprises a longitudinal symmetry axis (130), a sealing surface (106), and an alcove surface (108), contiguous with the sealing surface (106) and outwardly recessed relative to the sealing surface (106); and a plug (110). The plug (110) comprises a wall (112) that comprises an outer surface (114) and that also comprises a first aperture (116), fully penetrating the wall (112) through the outer surface (114) of the wall (112) of the plug (110). The outer surface (114) of the wall (112), comprising the first aperture (116), is complementary with the sealing surface (106) of the channel (104). The plug (110) is movable in the channel (104).

Provided is a nozzle header which sprays pressurized water to a high-temperature object, capable of inhibiting a member provided to spray nozzles from being deformed or damaged by heat at the time of operation, caused by radiation heat from the high-temperature object. The nozzle header for spraying water to a targeted object includes a header which supplies pressurized water, one or more of spray nozzles which spray the pressurized water supplied from the header, and a heat removal structure attached so as to be in contact with at least one of the spray nozzles, wherein the heat removal structure includes a coolant passage through which a cooling medium for cooling the heat removal structure itself and the spray nozzles passes.

A fuel injection system designed for an internal combustion engine includes at least one fuel injection nozzle which, by way of a cylindrical shell body, is inserted at least in regions into a bore of a cylinder head and which, by way of a nozzle tip, feeds fuel to a combustion chamber between the cylinder head and a reciprocating piston. The fuel injection nozzle is held in position on a housing section of the internal combustion engine with the interposition of a holding device and, for example, a fastening bolt. The holding device braces a first end region of the fuel injection nozzle against a bore stop within the bore in the cylinder head. To optimize this fuel injection system, the holding device has, outside the bore, a fixing bushing to which the shell body is fixed axially and radially by way of a radial insert element. A spring system acts between a first radial stop of the fuel injection nozzle and a second radial stop of the fixing bushing as viewed in the axial direction of the shell body of the fuel injection nozzle. The spring system seeks to move the fixing bushing, by way of a third radial stop, against a locking element system of the insert element, which is supported on a fourth radial stop applied to the shell body.

A spray nozzle assembly for a steam desuperheating or attemperator device. In one embodiment, the spray nozzle sub-assembly of the spray nozzle assembly comprises a fixed nozzle element which is integrated into a spring-loaded nozzle element, and is specifically adapted to improve water droplet fractionation at higher flow rates while further providing an effectively higher spray area through the formation of two water cones (rather than a single water cone), such water cones being sprayed into a flow of superheated steam in order to reduce the temperature of the steam. In another embodiment, the spray nozzle sub-assembly of the spray nozzle assembly comprises a nested pair of spring-loaded primary and secondary nozzle elements which are also adapted to provide an effectively higher spray area through the formation of two water cones.

A high flow valve for use in conjunction with a compressed gas, an aerosol or in bag-on-valve applications, and particularly to a valve having a housing that is supported by a mounting cup for a product container or can, and communicates with a product or product containment bag inside the can. A radial opening or orifice of the valve is positioned closer to a lower seal of the valve stem, rather than an upper seal or mounting cup gasket, to facilitate an increased flow rate for dispensing the product from the container and the valve.

The present disclosure relates to a bioprinter spray head assembly, comprising a mounting block having a passage and a spray head mounted in the passage, wherein a first flow channel is provided in the mounting block, one end of the first flow channel is provided with a port communicating with the passage; the spray head comprises an equal diameter portion away from an outlet of the passage and a reduced diameter portion close to the outlet of the passage, wherein a second flow channel is formed between the reduced diameter portion and the passage, an opening is formed between the reduced diameter portion and the port to communicate the first flow channel and the second flow channel, and the equal diameter portion is configured to occlude the port. The adjustment of the circulation area of the spray head assembly may be achieved by changing the relative positions of the reduced diameter portion and the port, so that the adjustment is convenient and easy to carry out, and there is a favorable implementability.

A dispensing valve comprising a metering valve for a pressurized aerosol application. The dispensing valve comprises a mounting cup, a gasket, a valve body and a valve housing defining a cavity. The valve housing is captively retained by the mounting cup and a spring biasing the valve body against the gasket into a normally closed position. A lower portion of the valve housing communicating with the product to be dispensed. A valve stem is coupled to the valve body and an actuator is supported by the valve stem. The metering valve is delimited by a metering valve seat and a stop. A metering member is movable, within the metering chamber, to dispense a predetermined quantity of product. The metering valve seat comprising at least one micro vent which facilitates supplying air to the metering valve seat to break a seal formed by surface tension of the product to be dispensed.