The invention relates to a device (1) for determining the hydrogen concentration of a fluid in an exhaust gas line (12) of a fuel cell system (100), comprising a sensor (14) which is arranged in a tube section (2), wherein said tube section has an inflow opening (4) and an outflow opening (6). A purge line (40) opens into the tube section (2) between the inflow opening (4) and the H2 sensor (14). A mixing element (8) mixes an exhaust gas flowing through the inflow opening (4) such that different components of the exhaust gas are distributed homogeneously.

An improved applicator and a method for applying two or more components which can be mixed together. They are intended to effectively prevent unintentional and unintentional mixing of the components at the discharge orifices and any associated uncontrolled or undesirable reaction of the components with each other during downtime of the applicator. The applicator/application device (1) for the application of at least two components can be mixed with one another, comprising coaxially arranged one within the other component feeds (2, 3) with the component feeds (2a, 3a) for the respective at least two components and component discharge orifices (2b, 3b) associated with the component feeds (2, 3),

A mixing apparatus for generating and mixing gas bubbles into an aqueous solution includes a structure defining an interior fluid-flow chamber that extends along a longitudinal axis between an input port at a liquid input end and an output port at a liquid output end. The structure includes a gas injection portion located upstream from the liquid output end and a mixing vane portion extending in the downstream direction from the gas injection portion. The gas injection portion defines a gas injection lumen and a first region of the interior fluid-flow chamber, while the mixing vane portion defines a second region of the interior fluid-flow chamber. The first region of the interior fluid-flow chamber includes a plurality of side fluid-path lumens that extend alongside a first part of the gas injection lumen. This first part of the gas injection lumen and the side fluid-path lumens merge with a downstream fluid-path lumen of the first region.

A static mixer for liquids or gases includes a housing having a continuous inner surface defining a fluid flow path for liquids or gases, an inlet to the fluid flow path, and an outlet from the fluid flow path, and an insert extending longitudinally through the fluid flow path between the inlet and the outlet. The insert is elastically expansive to exert outwardly directed pressure against the continuous inner surface of the housing. In one embodiment, the insert is hollow and has deflectors dispersed therethroughout and each projecting inwardly into the fluid flow path. In another embodiment, the insert includes a helical deflector extending inwardly into the fluid flow path from the continuous inner surface, and helically about a longitudinal axis of the housing.

A method monitors a device for applying an at least two-component viscous material to workpieces, including a metering unit having a number of metering valves corresponding with the number of viscous material components, and a static mixer detachably secured to the metering unit for component blending. The static mixer has a material inlet facing the metering unit and a material outlet facing away from the metering unit. Each metering valve has a supply channel sealingly connectable to a valve seat for supplying the respective component to the static mixer. A number of material applications are carried out consecutively, each having an identical predetermined time between start and end of the application. During the applications, between the start and the end, at predetermined times, the pressure in at least one supply channel is measured by a pressure sensor and preferably measured in all supply channels by a respective pressure sensor.

A flange member for sealing a mouth extending from a reservoir, includes an annular body for receiving and connecting with the mouth of the reservoir, and a membrane coupled to a flange surface defined at a distal end of the annular body.

A connector including a body defining a flange and cutting element sliding between a first position within the body and a second position external of the flange.

A formula delivery appliance generally includes a formula delivery head having features to mix, direct, and distribute formulation through nozzles to a desired location, such as the hair or scalp of a user. In this regard, the formula delivery head may include a plurality of nozzles configured to discharge the formulation at a desired flow rate. In some instances, the flow rate across the plurality of nozzles is controlled such that each nozzle has a flow rate within a specified percentage of the average flow rate across the plurality of nozzles.

A system and method of the purification of drinking water, ethanol and alcohol beverages is based on the action of hydrodynamic cavitation processing of microbiological and chemical contaminants, micro particles and colloidal particles. The fluid flow moves at a high rate through a multi-stage cavitation device and filtration module to generate hydrodynamic cavitation features in the fluid flow. The cavitation features generate changes in the velocity, pressure, temperature, chemical composition and physical properties of the liquid. The cavitation features also prevent the deposition of contaminants upon and remove contaminants from the surface of the filter module, reduce the load on the filter elements and increase the life of the filter module.

An inline mixer device includes a flexible tube and a mixer portion. The mixer portion is internal to and integral with the tube. The mixer portion and tube may be comprised of the same flexible material. Methods of forming the inline mixer device are provided. Methods of mixing fluid with the inline mixer device are provided.