A switchable water-saving valve including a water inlet substrate formed as an annular body which has a housing and a water inlet portion. The water inlet portion is fixedly arranged within the housing and has a water inlet and a water outlet extending therethrough. A flow channel substrate is fixedly arranged within the housing below the water inlet portion. Guide holes are formed circumferentially at intervals on the flow channel substrate and extend therethrough and are in fluid communication with the water outlet. A switch holder is rotatably positioned below the flow channel substrate. First and second pluralities of water flow holes are arranged circumferentially in the top surface of the switch holder and penetrate the top surface. Water outlet holes are formed on the bottom surface of an aerator holder and are in fluid communication with the first water flow holes. When the switch holder rotates to a first position where the first water flow holes are aligned with the guide holes, water flowing into the guide holes flows out of the water outlet holes through the first water flow holes.

A static spray mixer for mixing and spraying two flowable components includes a tubular mixer housing extending in the direction of a longitudinal axis up to a distal end with an outlet opening, having one mixing element arranged in the mixer housing for mixing the components and having an atomization sleeve with an inner surface surrounding the mixer housing in an end region. The atomization sleeve has an inlet channel for a pressurized atomization medium. A plurality of grooves is in the outer surface of the mixer housing or in the inner surface of the atomization sleeve and extend toward the distal end and form separate flow channels between the atomization sleeve and the mixer housing through which the atomization medium flows from the inlet channel of the atomization sleeve to the distal end of the mixer housing. The inlet channel is arranged asymmetrically with respect to the longitudinal axis.

A static spray mixer for mixing and spraying two flowable components includes a tubular mixer housing extending in the direction of a longitudinal axis up to a distal end with an outlet opening, having one mixing element arranged in the mixer housing for mixing the components and having an atomization sleeve with an inner surface surrounding the mixer housing in an end region. The atomization sleeve has an inlet channel for a pressurized atomization medium. A plurality of grooves is in the outer surface of the mixer housing or in the inner surface of the atomization sleeve and extend toward the distal end and form separate flow channels between the atomization sleeve and the mixer housing through which the atomization medium flows from the inlet channel of the atomization sleeve to the distal end of the mixer housing. The inlet channel is arranged asymmetrically with respect to the longitudinal axis.

A hose end spray head apparatus includes a spread head body and a hose coupling. The spray head body includes a mixing body and a spray outlet arm formed as a unitary construction. The spray outlet arm extends outwardly from the mixing body and includes a spray bore to discharge a mixed fluid. The spray bore communicates with atmosphere via a first radial sidewall bore and a first offset top surface bore. An axial bottom surface bore extends from the bottom surface to the spray bore and is draws product from a container so as to inject the product into the spray bore. A second radial sidewall bore is configured to communicate an open interior of the container with atmosphere. The hose coupling is secured to the mixing body and mounts to a fluid supply to form the mixed fluid which is discharged through the spray bore.

The invention relates to a modular system for weed control for a rail vehicle. The modular system has a control unit for producing control signals for controlling valves and miners in a separate herbicide and mixing module and for producing a second set of control signals for controlling valves of a nozzle rod. The herbicide and mixing module has a container for holding different herbicides and electrical connection elements for connections to the control unit. Furthermore, a nozzle rod is present, which is tit ted with a nozzle set, in order to spray herbicides of the herbicide and mixing module. In addition, a camera module is present, which produces a weed signal in response to the detection of a weed, in order to control the spraying of the herbicides. The camera module is at such a distance from the nozzle rod that, despite high speed, there is sufficient time to provide the herbicide at the nozzles.

A lance, in particular for jointly dispensing a pressurized fluid and an additive for penetrating walls, includes a lance body, a handle arrangement, multiple channels and actuator arrangements interacting therewith, a nozzle arrangement as well as at least one container for the additive. The actuator arrangements selectively control the fluid being conducted in the first channel, the additive being conducted in the second channel, and the ambient air being conducted in the third channel to a first nozzle body. The third channel forms a line connection between the ambient air and a mixing chamber of the first nozzle body. The second actuator arrangement with its second actuator directly acts on the third channel and indirectly controls the admixing of the additive via the second channel into the mixing chamber.

A coating liquid mixing device includes a supply tube including flow paths through which respective coating liquids flow and which are distally open; and a mixing nozzle communicating with an outlet of the supply tube so that the coating liquids flowing through the flow paths are supplied to an interior space, and including a reduced diameter portion in which the interior space is reduced toward an outlet so that an open area of the mixing nozzle is smaller than a total open area of the flow paths.

A coating liquid mixing device includes a supply tube including flow paths through which respective coating liquids flow and which are distally open; and a mixing nozzle communicating with an outlet of the supply tube so that the coating liquids flowing through the flow paths are supplied to an interior space, and including a reduced diameter portion in which the interior space is reduced toward an outlet so that an open area of the mixing nozzle is smaller than a total open area of the flow paths.

A thin film induction nebulizer is disclosed herein. The nebulizer has a gas capillary and a liquid capillary that are aligned in the same direction within a nebulizer housing and are substantially aligned with a main axis of the nebulizer housing. The nebulizer includes a liquid opening configured to allow liquid to exit the liquid capillary and a gas orifice configured to allow gas to exit the gas capillary. The liquid capillary opens into a chamber that is formed from a liquid channel having a roughened surface and a cover plate. The cover plate interfaces with the liquid channel to partially seal the chamber. The chamber includes an opening where the liquid opening opens into the chamber and also includes another opening proximal to the gas orifice. The end of the nebulizer housing that is proximal to the liquid opening and the gas orifice includes two angled exterior surfaces.

Various examples are provided related to low pressure delivery, e.g., less than 250 psi at the point of application, of plural component system from unpressurized parts A and B material supplies. In one example, a system includes a polyurethane spray foam (“SPF”) raw material supply including parts A and B and a fluid handling system that can deliver the SPF raw material at low pressure to a metal spray gun in metered amounts through separate material fluid paths/conduits via a heated hose length and a whip hose. The fluid handling system can also deliver air at low pressure to the spray gun through separate air stream paths so that the air is communicated to the part A and B material conduits forward of the part A and B material input locations, where they are supplied separately to a mixing nozzle that is engaged at an end of the spray gun.