The disclosure herein concerns a method including receiving at a computer at least one target value of a scent parameter for an environment that is remote from the computer, receiving at the computer a sensed parameter of the environment, and controlling, via the computer, diffusion of a liquid from a source of the liquid in fluid communication with at least one scent diffusion device to achieve the target value of the scent parameter, wherein controlling includes setting or adjusting an operation parameter of the at least one scent diffusion device in response to the sensed parameter.

Disclosed is a two-fluid fog generator including: a low-pressure fog generator (10) breaking down liquid into liquid micro particles and spraying the liquid micro particles through a primary nozzle hole (16) of a nozzle body (13); and a fog generation unit (20) positioned on top of the nozzle body (13) and comprising: a conical pneumatic chamber (22) filled with compressed air; and a secondary nozzle hole (26) spraying fog, wherein the secondary nozzle hole (26) is located directly above the primary nozzle hole (16) and arranged in a concentric manner with the primary nozzle hole (16), wherein the fog includes a mixture of a compressed air and the liquid micro particles.

A device for generating a scented mist of an atomized liquid fragrance oil includes an atomizer complex, a reservoir assembly, a drainage tube, and a vacuum tube. The atomizer complex can atomize the liquid fragrance oil into a scented mist and deliver the scented mist to air outside of the atomizer complex, where the liquid fragrance oil the fragrance oil that is not atomized into the scented mist delivered to the air outside of the atomizer complex includes collected oil that is collected and drained to a reservoir assembly. A drainage tube extends from a bottom area of the atomizer complex into the liquid fragrance oil. The device can filter the liquid fragrance oil in the reservoir assembly and the collected oil from the atomizer complex that drained down the drainage tube. The vacuum tube can suction the filtered liquid fragrance oil and the collected oil into the atomizer complex for atomization.

A two-component pumping system includes a first pump for pumping a first component, a second pump for pumping a second component, a motor, and a yoke assembly for connecting the motor to the first pump and the second pump and driving them simultaneously. The first pump includes a first displacement rod that reciprocates in a first pump axis. The second pump includes a second displacement rod that reciprocates in a second pump axis parallel to the first pump axis. The motor includes a drive shaft configured to reciprocate in a drive axis that is parallel to and in a common plane with the first and second pump axes. The motor is also configured to drive the first and second displacement rods in unison. The yoke assembly includes a top connector and a shoe. The top connector connects to the drive shaft.

A peristaltic pump comprises a drive assembly, a hose pump, and a hose bracket. The drive assembly is rotatably disposed within a frame to move a roller along a pumping path with respect to the frame. The pump hose has rigid hose ends connected by a bendable hose section with limited flexibility tending to bias the pump hose towards a substantially unbent shape. The hose bracket has a rigid body with a first central opening sized to receive the rigid hose ends at first and second retention locations, such that the natural bias of the pump hose towards a substantially unbent shape retains the hose ends within the first and second retention locations, positioning the bendable hose section along the pumping path of the roller.

Apparatuses and methods for a spray system with dynamically configurable droplet sizes are disclosed.

A device for coating a cylinder includes a coating head capable of being inserted into the cylinder, a plurality of coating guns which are provided on the coating head and are configured to discharge a coating material in a direction intersecting a longitudinal direction of the coating head, and a rotating cover which, when the coating material is discharged from one of a first coating gun and a second coating gun among the plurality of coating guns, is configured to cover the other of the first coating gun and the second coating gun, in which the plurality of coating guns are connected to coating material supply devices of different systems, respectively.

A spray device includes a base seat unit, a liquid container having a liquid-receiving space, a nozzle unit including a nozzle and a drawing tube, and an electric gas pump. The nozzle has an outlet, and a gas inlet and a liquid entrance that are in spatial communication with the outlet. The drawing tube spatially interconnects the liquid-receiving space and the liquid entrance. The electric gas pump has a gas supplying hole spatially communicated with the gas inlet. The electric gas pump is operable to provide a gas into the gas inlet through the gas supplying hole, such that the liquid stored in the liquid-receiving space is drawn into the liquid entrance through the drawing tube and thereafter exits the outlet together with the gas.

A fluid atomizer and methods of atomizing fluids are disclosed. The fluid atomizer may comprise an inner member and one or more outer members. The inner member defines an interior conduit for providing a first-fluid flowpath from a supply end of the atomizer to a discharge end of the atomizer along a central axis. The one or more outer members are positioned radially outward of the inner member from the central axis. The inner and outer members define a second-fluid flowpath extending from a second-fluid supply conduit to a second-fluid discharge plenum. The second-fluid flowpath comprises a tangential conduit spiraling along the axis from the second-fluid supply conduit to a terminal end; an annulus downstream from and in fluid communication with the tangential conduit; and a second-fluid discharge plenum downstream from and in fluid communication with the annulus.

The disclosure herein concerns a method including receiving at a computer at least one target value of a scent parameter for an environment that is remote from the computer, receiving at the computer a sensed parameter of the environment, and controlling, via the computer, diffusion of a liquid from a source of the liquid in fluid communication with at least one scent diffusion device to achieve the target value of the scent parameter, wherein controlling includes setting or adjusting an operation parameter of the at least one scent diffusion device in response to the sensed parameter.