High pressure water jet gun comprising: a dispensing body (6); a gripping body (13) connected to the dispensing body (6); an actuation member (10) reversibly movable between an activation position, wherein it is active on a shutter member (9) in order to at least partly cause an open condition, and a rest position, corresponding to a closed configuration of the shutter member (9); a blocking means (15) reversibly movable between a safety configuration, in which it is active on the actuation member (10) to prevent a passage from the rest position to the activation position, and a working configuration, wherein it enables a reversible passage of the actuation member (10) between the rest position and the activation position. In particular, the blocking means (15) comprises a manual activation element (21) at least partially opposed to the gripping body (13) with respect to the dispensing body (6). The actuation member (10) and the activation element (21) are arranged on opposed portions of the dispensing body (6) so that a single hand of the user can act on the activation element (21) with the thumb and on the actuation member (10) with at least another finger of the same hand.

A hot water pressure washer employs an internal combustion engine with a drive shaft having an exhaust manifold fluidly connected to an exhaust water heat exchanger. The engine is driveably connected to a hydrodynamic heater, and a high-pressure pump for generating a stream of high-pressure fluid. The hot water pressure washer captures 80-90% of the thermal energy generated during combustion processes of the engine for heating water.

A sash system includes a sash, a counter-weight coupled to the sash by a coupling member, a locking mechanism coupled to at least one of the sash and the coupling member, and a controller coupled to the locking mechanism. The locking mechanism is transitionable between an open configuration where the locking mechanism does not inhibit movement of at least one of the sash and the coupling member, and a locked configuration where the locking mechanism inhibits movement of the at least one of the sash and the coupling member. The controller is configured to control operation of the locking mechanism to selectively transition between the open configuration and the locked configuration based on a condition of the sash. The sash and the counter-weight are configured such that when the locking mechanism is in the open configuration, the sash lowers due to gravity.

A cleaning solution detection device includes a transfer part configured to unload and transfer a substrate having a surface to which a cleaning solution is applied when a cleaning process is completed, a detector configured to detect the cleaning solution that falls from the surface of the substrate in a process in which the substrate is unloaded and transferred by the transfer part, and a controller configured to determine whether a dangerous situation occurs due to a fall of the cleaning solution based on information detected by the detector.

The disclosure relates to a pressure cleaning device comprising a pressure generating unit for pressurizing a fluid and for dispensing a pressurized fluid via a hose attachment, preferably via a hand gun or via a cleaning nozzle. The pressure cleaning device can be operated in at least two different operating modes. According to the disclosure, a preferably electric pressure sensor for determining an actual operating pressure and/or a flow rate sensor for determining an actual flow rate and a control device are associated with the pressure generating unit. The control device is designed to control the pressure generating unit in particular, based on a respectively set operating mode in accordance with an actual operating pressure and/or an actual determined flow rate.

The present invention provides an automatic car washing device and an automatic car washing method therefor. The automatic car washing device includes a guide rail device and a cleaning rack arranged on the guide rail device. The automatic car washing method includes: acquiring a car washing instruction, moving a cleaning rack to a corresponding cleaning position based on the car washing instruction, and opening a corresponding water sprayer and/or a corresponding car washing shampoo sprayer in sequence based on the car washing instruction, and keeping same operating for set cleaning duration, and keeping unopened water sprayers and/or car washing shampoo sprayers closed. The present invention solves a problem of a poor cleaning effect due to incapacity of a sprinkler of an existing automatic car washing device to produce enough spray pressure, improves diversity of car washing modes, and greatly reduces car washing costs.

A washer including a cabinet with a washing zone accessible through a doorway; a door with an inflatable door seal for sealing the doorway, the door seal coupled to a pneumatic air system; a clamp for securing a part within the washing zone; a wash nozzle and air nozzle are located within the washing zone and fluidly coupled to a process water system, pneumatic system respectively for washing and drying the part; a safety controller operatively coupled to the door, the pneumatic system and the process water system; and a process controller operatively coupled to the door, the pneumatic system, the process water system and the clamp, the process controller configured to wash the part.

A washing tool for washing the engine core of a gas turbine engine has: a fluid connector, configured to be connected to a supply of engine washing fluid; a nozzle, in fluid communication with the fluid connector and configured to direct the engine washing fluid into the engine core; a fan blade fixture, configured to engage with a fan blade of the gas turbine engine and fix the position of the washing tool relative to the fan blade; and a second fixture, configured to engage with a part of the gas turbine engine that does not rotate about the axis of the gas turbine engine and fix the position of the washing tool relative to said part of the gas turbine engine. A washing system, a waste water collection system, a method of washing an engine core of a gas turbine engine, and a gas turbine engine, are also described.

Provided is a pump apparatus capable of suppressing an unintentional ejection of a high-pressure liquid from a nozzle. A pump apparatus including: an injection chamber having a door; a nozzle arranged in the injection chamber; a pump connected to the nozzle for discharging liquid; a motor for driving the pump; a door sensor for detecting that the door is closed; and a control device capable of communicating with the door sensor, the control device having a motor rotation unit for supplying driving power to the motor only when the door sensor detects that the door is closed.

The disclosure relates to a pressure cleaning device comprising a pressure generating unit for pressurizing a fluid and for dispensing a pressurized fluid via a hose attachment, preferably via a hand gun or via a cleaning nozzle. The pressure cleaning device can be operated in at least two different operating modes. According to the disclosure, a preferably electric pressure sensor for determining an actual operating pressure and/or a flow rate sensor for determining an actual flow rate and a control device are associated with the pressure generating unit. The control device is designed to control the pressure generating unit in particular, based on a respectively set operating mode in accordance with an actual operating pressure and/or an actual determined flow rate.