A steam cleaning accessory for use with a steam generator comprises a flexible body comprising a front wall, a rear wall and base extending there between. At least one steam conduit is connectable to the steam generator and is arranged to be in fluid communication therewith. The steam conduit comprises at least one steam outlet for ejecting steam. The at least one steam outlet is mounted on an underside of the base which is configured to be adjacent to a surface to be cleaned. A flexible pocket is mounted on the flexible body and arranged to receive a user's hand. A barrier projects from the flexible body which is engageable with the surface to be cleaned. The barrier is located on a rear wall side of the at least one steam outlet.

Hand-held solid chemical applicator assemblies for various cleaning applications such as coil cleaning utilizing specially-configured chemical tablet chamber and assembly hydraulics. In some cases, the hand-held solid chemical applicator assemblies are configured to include a cylindrical flow diverter to facilitate proper chemical tablet dissolution.

A portable liquid-delivery system includes a portable container configured to store an internal liquid, the portable container having a peripheral wall extending along a central axis between a top wall and a bottom wall, the portable container including a cutout disposed partially inward between the peripheral wall and the central axis. A mounting module is configured to mount the portable container to a transportation device. The portable liquid-delivery system further includes a sprayer module that dispenses the internal liquid externally from the portable container.

A pressure washer includes a port for a liquid source, a high-pressure pump, a main line, through which liquid can be conveyed from the port to a spray opening of the main line by the high-pressure pump, a control element for setting a pressure value for the pressure in the main line, and a pressure regulator, which adjusts the pressure in the main line according to the pressure value set by the control element. The control element is continuously adjustable along a travel path. Each position of the control element sets a specific pressure value. The pressure washer has a selector element for selecting at least two different characteristic curves, each with a different relationship between positions of the control element and pressure values. By selecting a characteristic curve using the selector element, the assignment of the position of the control element to the pressure value can be changed.

A safety system and method for hydro jetting guns capable of monitoring and interrupting a hydro jetting operation depending on movements detected out of predefined operating limits. In particular, the system described herein can include a gun adaptation assembly interconnected to a pressure and power box, and comprising at least two inertial measurement sensors, a support with a gun microcontroller, and a double trigger mechanism. The pressure and power box is provided with a junction box and a solenoid valve. The system can further include a user monitoring wearable. If a deviation from pre-established standards is detected that suggests malfunction, excessive working hours, and/or discomfort of an operator, the system acts immediately to interrupt the hydro jetting operation and ensure the safety of those involved.

An outdoor cleaning device configured to clean outdoor surfaces using a variety of fluids and techniques. The outdoor cleaning device includes a brush head, a motor and a transmission for providing a driving force to the brush head, a fluid tank for storing a fluid (e.g., a cleaning solution or detergent), and a controller for controlling mixing (or not mixing) the fluid stored in the fluid tank during operation of the outdoor cleaning device. The controller may enable fluid from the cleaning tank to be mixed with a second fluid (e.g., water) prior to being dispensed via at least one nozzle. The at least one nozzle may be secured to a guard cover via grooves on an inner guard cover and an outer guard cover. The nozzle(s) enables the distribution of cleaning fluids in various directions, enhancing the brush head's cleaning capability.

The present invention relates generally to the field of pressure washer wands and a cleaning attachment that can be attached to any standard pressure washer wand. The attachment has a roller assembly with a bristled roller head. The head can be positioned in front of the spray tip of a wand such that water that exits the wand and causes the head to spin.

The invention provides a device for cleaning and maintaining the interior of a hub in a wind turbine nacelle, belonging to the technical field of wind power equipment. The device comprises a handle component, a switching assembly, a combined cleaning assembly and a maintenance assembly. The switching assembly is connected in a switching shaft block through a switching shaft. A high-temperature steam cleaning mechanism and a negative-pressure contaminant suction mechanism are arranged in the cleaning assembly to remove oil contaminants in the hub in the wind turbine nacelle. The device has a high level of integration, is easy to operate, and can improve the operation stability of a wind turbine.

A manually operated pressure fluid device has a housing structure which receives a motor-pump group and has a fluid inlet connected to the pump on the intake side and a fluid outlet formed on a nozzle unit and connected to the pump on the delivery side, an electrical power source and a control element acting on the power supply of the motor. The motor of the motor-pump group is a brushless DC motor and the pump is a whirling rotor pump having two lock washers, each having an annular face spline, where the number of teeth of the two face splines intermeshing with each other differ from each other by one and the lock washers arranged at an angle relative to each other wander relative to each other such that the face splines delimit a plurality of pump chambers which increase and reduce in size during pump operation.

A spray wand includes: a hollow tubular main body; a nozzle mounted on the output end of the main body; and a valve assembly configured to mount the input end of the main body. The valve assembly includes: a housing having an input conduit for coupling the valve assembly with a fluid source; a sealing piston biased within the input conduit toward a sealing position thereof, and a valve core having a column rotatable within the interior space of the housing and a handle extending from the column, the valve core being rotatable between at least one open position corresponding to an open condition of the valve assembly and at least one closed position corresponding to a closed condition of the valve assembly. Upon rotation of the column to at least one open position thereof, the sealing piston biased within the input conduit is pressed from the sealing position.