The present invention relates to a spray nozzle for washing, in which: a linear spray inlet and a spiral spray inlet are integrally formed in one nozzle body, and thus, linear and spiral washing water can be selectively sprayed by operating organically; the lower end of a nozzle tip, which forms the spiral washing water, moves circumferentially around the axis, and the upper end makes linear contact within a packing, thereby preventing abrasion caused by friction and forming the spiral washing water without frictional resistance even in the case of weak water pressure; and when forming the spiral washing water, a backflow preventing member closes the linear jet inlet, and thus, backflow can be prevented, thereby enabling leakage prevention of washing water and a stable operation.

A method for cleaning a wall body with a UAV includes obtaining a path to be cleaned; flying to a region to be cleaned according to the path to be cleaned; recognizing a wall surface in the region to be cleaned; and using a cleaning device carried by the UAV to clean the wall surface.

A multi-stage can washer includes a water treatment system structured to receive contaminated water from the skimming trough corresponding to a last feed tank, to clean the contaminated water, and to provide the cleaned water to a first one of the one or more feed tanks. The water treatment system includes a pressure vessel structured to mix ozone or air with the contaminated water to create gaseous water, a frothing cell structured to cause bubbles to form in the gaseous water to form a froth, to skim off and dispose of the froth, to degas the gaseous water to remove remaining gases, and to output degassed water, and a filtration system structured to receive the degassed water, to filter solid particles from the degassed water to form cleaned water, and to provide the cleaned water to the first feed tank.

The invention relates to a cleaner comprising a base member connectable to a conduit for a cleaning agent, a head rotatably mounted about a first axis on the base member and a nozzle head mounted rotatably about a second axis on the head and having at least one nozzle. According to the invention, the nozzle head has an auxiliary nozzle which forms a cleaning jet and directs it toward the head, or an auxiliary nozzle which forms a cleaning jet and directs it toward the head is arranged on the nozzle head.

Method for operating a shortened dishwashing cycle of a dishwasher, dishwasher configured for running the shortened dishwashing cycle and computer program product for operating a shortened dishwashing cycle of a dishwasher. The dishwasher (10) includes a tub (12) configured to hold dishware during a dishwashing cycle, at least one circulation pump (50, 250), at least one heating element (230), and a controller (40, 240) configured to operate the dishwasher. The controller (40, 240) is configured to operate the dishwasher (10) according to at least one of a normal dishwashing cycle or the shortened dishwashing cycle. The method includes providing a first amount of warm water to the tub (12). The first amount of warm water is greater than a standard amount of water provided to the tub (12) for the normal dishwashing cycle. The method further includes, while the first amount of warm water is being provided into the tub (12), pulsing the circulation pump (50, 250) based on a predetermined timing sequence and activating the heating element (230) to heat the water within the tub (12).

A nozzle position adjusting device is used for a substrate cleaning device including a substrate support portion that supports a substrate and a nozzle that jets a cleaning liquid toward the substrate. The nozzle position adjusting device includes a position confirmation plate in which a position display is formed and which is installed in the substrate support portion, and a positioning mechanism configured to extend from the nozzle toward the position confirmation plate. The positioning mechanism determines the position of the nozzle with respect to the position confirmation plate by using the position display.

The invention relates to wind turbine blade and tower maintenance devices, which can be used for semi- or fully-automated maintenance, including cleaning, de-icing, and painting of wind turbine blades and tower. The wind turbine blade maintenance arrangement, comprising a main frame; a roller frame; at least one cleaning and/or painting means supporting frame; a linear movement rail, comprising the longitudinally extending base surface, two longitudinally-extending walls, being perpendicular to the base surface; a joint, providing for at least one degree of freedom; at least two rollers mounted on the roller frame and configured to allow secure pushing of the arrangement of the cleaning robot against an edge of the wind turbine blade, and moving the maintenance arrangement along the edge of the blade; the cleaning and/or painting means, mounted on the cleaning and/or painting means supporting frame; the cleaning and/or painting means supporting frame or frames are adjustably connected to the roller frame so as to allow controllable adjustment of the distance between the cleaning and/or painting means, and the surfaces of the wind turbine; wherein the main frame and the roller frame are adjustably connected together via a linear movement rail and a joint; the linear movement rail is designed to allow movement of the roller frame in a substantially horizontal direction in respect to the main frame; the joint is designed to allow controllable rotational movement of the roller frame in respect to the linear movement rail, wherein the rotational axis of the revolute joint is substantially perpendicular to the base surface of the linear movement rail.

Systems, devices, and methods for washing robotic cleaners are disclosed. An example robotic cleaning system may include a robotic cleaner, which may include a housing and at least one wet cleaning element including at least one cleaning surface on an underside of the housing. A docking station may include a base. A support may extend laterally from the base. The support may be configured to receive at least a portion of the robotic cleaner on top of the support. The support may define a cavity. At least one cleaning shuttle may be within the cavity and may include at least one spray nozzle and at least one mechanical contacting element. The spray nozzle(s) may be configured to spray cleaning fluid onto at least a first portion of the cleaning surface(s). The mechanical contacting element(s) may be configured to contact at least a second portion of the cleaning surface(s).

A substrate cleaning device includes a double-sided scrubber that directs a liquid to a substrate as it moves back-and-forth between a pair of rotating brushes. The device may also include a first set of nozzles and a second set of nozzles. The first set of nozzles may be configured to spray a first liquid at an interface between the substrate and rotating brushes and the second set of nozzles may be configured to spray a second liquid at the interface as the substrate moves back-and-forth between the pair of rotating brushes.

A method of cleaning a clean-up target with a spinner cleaning apparatus includes a holding step of holding the clean-up target on a holding surface of a holding table of the spinner cleaning apparatus, the holding table being rotatable about a rotational shaft perpendicular to the holding surface, and a first treating step of cleaning or drying a local region of the clean-up target held on the holding surface of the holding table with first fluid supplied from a first nozzle of the spinner cleaning apparatus by combining turning of the holding table about the rotational shaft through an indicated rotational angle and movement of the first nozzle relative to the rotational shaft with each other.