Method of producing prills includes providing a hollow body rotatable about a first axis, the body having a wall rotationally symmetrical around the first axis forming an interior space, the wall including nozzles; providing a second body disposed in the hollow body such that a gap exists between the hollow body and the second body; supplying liquid to the gap; generating jets of liquid from the nozzles radially outward by driving the rotational motion of the hollow body and/or second body around the first axis of rotation using a rotary drive unit; applying a reciprocal pressure excitation on the jets of liquid by moving the hollow body and/or second body along the first axis; and decoupling the rotations of the one of the hollow body and second body and a reciprocating drive-unit.

A washer nozzle comprises a first flow path that extends in the longitudinal direction of an arm piece, a second flow path that is connected to the downstream side of the first flow path and that extends in a direction intersecting the longitudinal direction of the arm piece, an upstream opening that opens the first flow path and the second flow path toward one side in the longitudinal direction of the arm piece, and a blocking member that is provided with a joint part connected by a washer tube and that blocks the upstream opening.

A washer nozzle comprises a first flow path that extends in the longitudinal direction of an arm piece, a second flow path that is connected to the downstream side of the first flow path and that extends in a direction intersecting the longitudinal direction of the arm piece, an upstream opening that opens the first flow path and the second flow path toward one side in the longitudinal direction of the arm piece, and a blocking member that is provided with a joint part connected by a washer tube and that blocks the upstream opening.

An aerosol-generator for an aerosol-generating device is provided, the aerosol-generator including: a plurality of surface acoustic wave atomisers, each surface acoustic wave atomiser including: a substrate including an active surface, and at least one transducer disposed on the active surface of the substrate to generate surface acoustic waves on the active surface; an atomisation region defined between the substrates of the plurality of surface acoustic wave atomisers; and a supply element arranged to supply a liquid aerosol-forming substrate to the atomisation region. An aerosol-generating device including the aerosol-generator is also provided.

An aerosol-generator for an aerosol-generating device is provided, the aerosol-generator including: a plurality of surface acoustic wave atomisers, each surface acoustic wave atomiser including: a substrate including an active surface, and at least one transducer disposed on the active surface of the substrate to generate surface acoustic waves on the active surface; an atomisation region defined between the substrates of the plurality of surface acoustic wave atomisers; and a supply element arranged to supply a liquid aerosol-forming substrate to the atomisation region. An aerosol-generating device including the aerosol-generator is also provided.

Formulation delivery systems, formulation delivery devices, and formulation cartridges for the same are provided. Formulation delivery systems include a reusable handle, a formulation dispensing assembly, and a controller. The formulation dispensing assembly includes a reciprocating nozzle assembly and a pump. The reciprocating nozzle assembly is fluidically-coupleable to the formulation cartridge or the cleaning cartridge received within the reusable handle. Formulation delivery devices include a reusable handle configured to receive a formulation cartridge therein, and a formulation dispensing assembly disposed in the reusable handle. The formulation dispensing assembly includes fluid conduits, a pump fluidically connected to the fluid conduits, a reciprocating nozzle assembly, and a controller. Formulation cartridges include a reusable cartridge body, a valve frame, and a disposable refill packet reversibly-coupleable to the reusable cartridge body. The disposable refill packet includes a formulation packet and a body portion configured for insertion into the reusable cartridge body.

An atomizer for applying a coating includes a nozzle plate, an actuator, and an acoustic focusing device. The nozzle plate defines at least one aperture. The actuator is configured to oscillate to form pressure waves within a fluid to eject the fluid from the nozzle plate. The acoustic focusing device focuses the pressure waves toward the apertures.

An atomizer for applying a coating includes a nozzle plate, an actuator, and an acoustic focusing device. The nozzle plate defines at least one aperture. The actuator is configured to oscillate to form pressure waves within a fluid to eject the fluid from the nozzle plate. The acoustic focusing device focuses the pressure waves toward the apertures.

A nozzle for an atomizer includes a plate, a piezoelectric actuator, a body, and a connector. The plate defines an aperture. The actuator is configured to oscillate the plate. The body supports the plate. The connector is configured to reversibly mount the body to the atomizer in a first orientation and in a second orientation. In the first orientation, fluid exits the nozzle along a first axial direction through the aperture. In the second orientation, fluid exits the nozzle along an opposite axial direction through the aperture.

A nozzle for an atomizer includes a plate, a piezoelectric actuator, a body, and a connector. The plate defines an aperture. The actuator is configured to oscillate the plate. The body supports the plate. The connector is configured to reversibly mount the body to the atomizer in a first orientation and in a second orientation. In the first orientation, fluid exits the nozzle along a first axial direction through the aperture. In the second orientation, fluid exits the nozzle along an opposite axial direction through the aperture.