A device for applying a cleaning liquid to a vehicle part includes an upper nozzle for discharging cleaning liquid in a first spray geometry delimited in a first vertical cross-section starting from the upper nozzle, by a first upper side piece and a first lower side piece that enclose a first opening angle with one another. The device also includes a lower nozzle for discharging cleaning liquid in a second spray geometry delimited in a second vertical cross-section starting from the upper nozzle, by a second upper side piece and a second lower side piece that enclose a second opening angle with one another. In a vertical projection, a first straight line extending through the first upper side piece encloses an angle with a second straight line extending through the second lower side piece is less than 10°, and the first lower side piece intersects the second upper side piece in the discharge direction.

Disclosed is a mat for cleaning that removes extraneous matter adhering to a moving object, the mat for cleaning including: a mat part having a front surface facing the moving object and a back surface; a plurality of pump parts disposed on the front surface of the mat part, formed integrally with the mat part, and being deformable independently of each other; and a bottom member in contact with the back surface of the mat part and capable of being detached from the mat part, wherein the pump parts each include a pump chamber wall that protrudes from the front surface of the mat part and comes into contact with the moving object to receive a pressing force directly from the moving object, and a fluid passing portion provided in the pump chamber wall and allowing communication between an inside and an outside of the pump chamber wall.

An aspect ratio flow metering device may comprise a concentrate inlet portion, one or more restricted flow portions of tubing fluidly connected to the concentrate inlet portion, and a metered concentrate outlet portion fluidly connected to the one or more restricted flow portion of tubing. The narrowest part of the one or more restricted flow portions of tubing may each have a length (R.sub.L): inner diameter (R.sub.ID) ratio of at least 10:1. The metered concentrate outlet portion may have an inner diameter (O.sub.ID) greater than R.sub.ID. The concentrate inlet portion may have an inner diameter (I.sub.ID) greater than R.sub.ID. The aspect ratio flow metering device may be structurally configured to limit flow of a concentrate into a hydrodynamic mixing apparatus. Also disclosed are methods for using the aspect ratio flow metering device to mix fluids.

A liquid cleaning and watering system for living plants rests on a surface covered by a non-porous material. A plate layer covering the non-porous layer has two or more layers, each layer having runners arranged in a grid. The grid of each successive layer is offset at an angle with respect to the grid of a previous layer. An upper layer covers the plate layer and has a plurality of holes for the passage of liquids into the liquid cleaning system. As the living plants are watered or cleaned, excess liquids containing water and oils that were excreted by the living plants enter the liquid cleaning system through the holes, the liquid traverses the grid layers, flowing towards a drain. Contaminants within the liquid collect within the grid of the layers of the plate layer for later disposal.

A system comprises a computer having a processor and a memory, the memory storing instructions executable by the processor to transmit a vehicle localization signal from a first vehicle, receive vehicle localization data for the first vehicle, the vehicle localization data generated based on receipt of the vehicle localization signal by a plurality of localization receivers of a vehicle movement space, determine, based on the vehicle localization data for the first vehicle, a position of the first vehicle in the vehicle movement space, determine a position of a second vehicle in the vehicle movement space relative to the position of the first vehicle, and command a first movement by the first vehicle based on the position of the first vehicle and the position of the second vehicle relative to the position of the first vehicle.

A venturi-style vehicle washing system and method of washing a vehicle. The washing system and method produces large droplets of a liquid-gas mixture for washing a vehicle by mixing an energetic flow of gas carried at a first velocity through a gas conduit, with a liquid carried at a second velocity through a liquid conduit. A mixture conduit may carry the liquid-gas mixture to a vena contracta structure where: a jet forms, pressure drops, and velocity increases. The gas leaving the structure may expand to fill an outlet duct, creating turbulent vortexes in the liquid-gas mixture that transforms flowage kinetic energy to heat energy, which decreases pressure through the outlet duct. This results in increasing velocity of the liquid-gas mixture discharged onto the vehicle. The outlet duct operationally attaches to a spray arch that is sized to enable passage of a vehicle for washing with the liquid-gas mixture.

A venturi-style vehicle washing system and method of washing a vehicle. The washing system and method produces large droplets of a liquid-gas mixture for washing a vehicle by mixing an energetic flow of gas carried at a first velocity through a gas conduit, with a liquid carried at a second velocity through a liquid conduit. A mixture conduit may carry the liquid-gas mixture to a vena contracta structure where: a jet forms, pressure drops, and velocity increases. The gas leaving the structure may expand to fill an outlet duct, creating turbulent vortexes in the liquid-gas mixture that transforms flowage kinetic energy to heat energy, which decreases pressure through the outlet duct. This results in increasing velocity of the liquid-gas mixture discharged onto the vehicle. The outlet duct operationally attaches to a spray arch that is sized to enable passage of a vehicle for washing with the liquid-gas mixture.

The present disclosure describes apparatus, systems and methods in which a first data storage is maintained for a first group of authorization codes, for example those associated with a local POS system, and second data storage, logically separate from the first data storage, is maintained for a second group of authorization codes, such as those associated with a remote or online sales system. Access control is achieved by checking a received authorization code for validity against one or both groups of authorization codes, without needing to integrate different code assignment systems or different sales systems with one another. The technology has particular utility for automated car wash systems, although it is not limited thereto, and embodiments of the technology may be retrofit to existing car wash control interfaces.

A fluid flow actuated tool including a housing, a tool and an actuating mechanism. The housing includes a housing interior. The housing interior receives a flow of fluid. The actuating mechanism includes a fluid wheel structure. The fluid wheel structure is connected to the tool. At least a portion of the fluid wheel structure is arranged in the flow of fluid for rotating the fluid wheel structure. The tool is actuated based on rotation of the fluid wheel structure.

An automatic control of a vehicle washing installation in an emergency operation in the case of a fault is provided. The following method steps are carried out: detecting an error message for ascertaining a fault state of the vehicle washing installation. In response to the detected fault state: specifying function blocks, which can be activated in a fault-free manner, on the basis of a read-in equipment data set which represents the current equipping of the vehicle washing installation with machine components for computing emergency operation programs; controlling a vehicle washing installation for carrying out the emergency operation on the basis of the calculated emergency operation programs.