A droplet delivery device includes an ejector plate having an overall area that includes an outer area that is solid without holes and inner, active area with holes.

A spray applicator (1) for spraying a fluid onto a web (W) of material has a first group of spray nozzles (10A) arranged along a first axis (FA) and a second group of spray nozzles (11A) arranged along a second axis (SA). The first (FA) and second (SA) spray nozzle axes are arranged on the same side of a plane in which the web (W) is run. Each spray nozzle (10A, 11A) has an elongated spray opening configured to spray fluid in a direction towards the web (W). The first spray nozzle opening of the first group of spray nozzles (10A) has an inclination angle which differs from the second nozzle opening inclination angle of the second group of spray nozzles (11A).

An execution system (100) for a fluid micro-injection device and a fluid micro-injection device are provided. The execution system (100) has a base body (110), a movable member (120), an executor and an adjusting member (130). The adjusting member (130) is disposed in the executor mounting cavity (110) and connected with the executor. The adjusting member (130) is adjustable for adjusting a pre-tightening force of the executor.

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.

An execution system (100) for a fluid micro-injection device have a base body (110), a movable member (120), an executor, an adjusting member (130) and a plurality of clearance sheets. The movable member (120) is movably disposed on the base body (110). The executor and the adjusting member (130) are disposed in the base body (110). The plurality of clearance sheets are disposed between the base body (110) and the adjusting member (130) to adjust a pre-tightening force of the executor.

The invention relates to a metering system (1) for a metering substance, comprising a nozzle (40), a feed channel (44) for the metering substance, a discharge element (31), and a piezo actuator (61) which is coupled to the discharge element (31) and/or the nozzle (40). The piezo actuator (61) of the metering system (1) is hermetically encapsulated in a housing (62).

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.

A mobile sprayer apparatus includes a direct current electrical supply, and a supply conduit operative to supply pressurized liquid to a plurality of nozzle assemblies. Each nozzle assembly comprises a channel connecting the supply conduit to a nozzle, a valve operative to selectively open and close the channel, and a solenoid coil operative to selectively move the valve to an open position when a direct current electrical pulse is connected to pass through the solenoid coil in a first direction, and to selectively move the valve to a closed position when a direct current electrical pulse is connected to pass through the solenoid coil in an opposite second direction. A switch selectively delivers a pulse of electrical energy through each solenoid coil in the first direction or through each solenoid coil in the second opposite direction, and no electrical energy is delivered to the solenoid coils between pulses.

Introduced here is a face mask system having a mask enclosure that contains, or otherwise directly supports, an automated liquid-droplet dispensing mechanism (ADM) for humidification. In operation, the enclosure and ADM are compact and lightweight so that when worn by a user can be supported entirely by the user's head and neck. The enclosure can be comprised of one or more layers of breathable fabric adapted to flexibly conform to the face of a user when worn and form a cavity that is adjacent to the user's nostrils and mouth. The ADM can be comprised of a reservoir in which liquid is stored, a respiratory cycle detector, a timer and controller, and a droplet dispenser that controllably dispenses droplets of the liquid from the reservoir into the cavity for inhalation by the user.

A liquid jet device for skin cleaning includes a liquid jet nozzle including a nozzle hole, a pressurized liquid supply unit configured to pressurize liquid and supply the liquid to the liquid jet nozzle, and a processor configured to control operation of the pressurized liquid supply unit to cause the liquid jetted from the nozzle hole to fly as droplets formed by splitting a continuous flow, in which a nozzle hole diameter of the nozzle hole is from 0.01 mm to 0.03 mm, and the processor controls a supply pressure of the pressurized liquid supply unit such that a jetting velocity of the liquid jetted from the nozzle hole is from 10 m/s to 60 m/s.