A foam generating device for a high-pressure water gun has a supporting body defining part of a conduit, which extends along an axis and has a mixing chamber communicating with a lower inlet, and subject, in use, to a vacuum to aspirate a liquid from said lower inlet; the device has a first sleeve which is fitted around one end of the supporting body, is axially fixed, is rotatable and is provided with an end portion carrying a nozzle; such a nozzle defines the outlet of the conduit and is adjustable so as to vary the outgoing flow type between a fan-like jet and a solid stream jet; the device has, in addition, a second sleeve which is coupled to the first sleeve in a fixed axial position and in a rotatable manner and is provided with cams to adjust the nozzle in response to a rotation of the second sleeve with respect to the first sleeve.

Wands are used as parts of cleaning systems to conduct cleaning agents into gas turbine engine cores. Wands according to the present disclosure include inlet assemblies adapted to connect to cleaning agents, dispensers adapted to discharge cleaners into gas turbine engines, and conduits that extend from the inlet assemblies to the dispensers.

A liquid drawing device includes a main body assembly, a drawing pump mounted inside the main body assembly; an adjustable air intake is mounted outside the air intake hole of the connecting seat of the main body assembly, and the first liquid delivery pipe of the connecting seat is mounted with a drawing straw. With the drawing pump drawing liquid inside a container, the procedure of liquid drawing may not be restricted by whether an airtight condition of an opening of the container is well maintained, and an opened degree of the air intake hole of the connecting seat can be adjusted by the adjustable air intake. Besides, because the drawing straw is a telescopic pipe assembly with a plurality of sections, the liquid drawing device can be conveniently carried around after the drawing straw is retracted and shortened.

A dispenser for mixing and dispensing a liquid chemical concentrate with a dilutent from a container. The dispenser includes two slideable eductors one of which is also rotatable. Both a high and low flow rate can be obtained with simultaneous adjustment of concentration of the chemical concentrate. The dispenser has a high degree of accuracy of the amount of dilution of the chemical concentrate as well as positive positioning of the high and low flow rate.

A dispenser for mixing and dispensing a liquid chemical concentrate with a dilutent from a container. The dispenser includes two slideable eductors one of which is also rotatable. Both a high and low flow rate can be obtained with simultaneous adjustment of concentration of the chemical concentrate. The dispenser has a high degree of accuracy of the amount of dilution of the chemical concentrate as well as positive positioning of the high and low flow rate.

An injector device for supplying a chemically reactive component to a mixing head includes a modular structure defined by a hollow housing and guiding body extending around a longitudinal symmetry axis and having one or more supply openings for supplying the chemically reactive component; in the hollow body a nozzle orifice is obtained arranged to face and communicate with a mixing chamber obtained in the mixing head; a pin-shaped partialization and control element, which is housed and slidably movablealong the longitudinal symmetry axisin the hollow body and configured to vary a narrowed active section of the nozzle orifice; on the partialization and control element a tip portion is obtained that is conformed to receive pressure from the respective polymer component delivered to said hollow body so as to move away said partialization and control element from said nozzle orifice to vary the area of said narrowed active section; a modular adjusting and contrasting unit, which is removably couplable with the hollow body and with the partialization and control element and configured to exert an axisymmetric thrust action on the partialization and control element to arrange the partialization and control element in an initial position and preload condition to adapt the narrowed active section to a reference flowrate and pressure of the polymer component and subsequently to vary the position of said partialization and control element to adjust the narrowed active section according to the flowrate variation, exerting the contrasting force that is suitable for balancing the pressure exerted by the polymer component; the modular adjusting and contrasting unit includes a series of interchangeable elastic elements of conical disc shape, configured to exert a non-linear elastic action that is such as to contain the retracting stroke of the partialization and control element, limiting as much as possible the pressure variation at the variation of the flowrate of the respective polymer component entering the hollow housing and guiding body; the modular adjusting and contrasting unit, the tip portion and the nozzle orifice cooperate mutually to confer to the injector device a geometric conformation with high section gain, corresponding to a high ratio between the variation of the area of narrowed active section and the longitudinal shift of the partialization and control element.

A power machine can include a frame, an engine supported by the frame, and an air intake system that directs intake air to the engine. The air intake system can include a filter assembly that includes a filter housing and a filter element positioned in the filter housing to filter contaminants from the intake air. A pressure source can be arranged to pressurize filtered air from the filter assembly and provide the pressurized filtered air to an intake of the engine. The air intake system can further include an ejector arranged to receive a portion of the pressurized filtered air and induce a suction flow at the filter housing to eject contaminants from the air intake system.

A gas mixer includes a housing and a gas intake pipe. The housing has a main body, a first gas intake passage, a second gas intake passage, and a gas outlet passage. The first gas intake passage, the second gas intake passage, and the gas outlet passage are connected to the main body. A central axis of the first gas intake passage and a central axis of the second gas intake passage extend and intersect with each other. The gas intake pipe is movably coupled to the first gas intake passage of the housing, so that a front end of the gas intake pipe is configured to extend to over the second gas intake passage through the first gas intake passage.