A fluidic device (100) is described for locally coating an inner surface of a fluidic channel. The fluidic device (100) comprises a first (101), a second (102) and a third (103) fluidic channel intersecting at a common junction (105). The first fluidic channel is connectable to a coating fluid reservoir and the third fluidic channel is connectable to a sample fluid reservoir. The fluidic device (100) further comprises a fluid control means (111) configured for creating a fluidic flow path for a coating fluid at the common junction (105) such that, when coating, a coating fluid propagates from the first (101) to the second (102) fluidic channel via the common junction (105) without propagating into the third (103) fluidic channel. A corresponding method for coating and for sensing also has been disclosed.

A method of coating a substrate with a washcoat is disclosed. The method comprises engaging the substrate with a headset of a substrate coating apparatus so as to locate an upper surface of the substrate below a washcoat showerhead of the substrate coating apparatus; and discharging a washcoat out of the washcoat showerhead towards the upper surface of the substrate; and drawing the washcoat through the substrate by applying a suction force to a lower surface of the substrate.

A method of coating a substrate with a washcoat is disclosed. The method comprises engaging the substrate with a headset of a substrate coating apparatus so as to locate an upper surface of the substrate below a washcoat showerhead of the substrate coating apparatus; and discharging a washcoat out of the washcoat showerhead towards the upper surface of the substrate; and drawing the washcoat through the substrate by applying a suction force to a lower surface of the substrate.

A method for coating a monolithic porous catalyst support having a plurality of channels formed in a longitudinal direction with a catalyst slurry, and a device therefor are proposed. A pressure dispersion coating device for a porous catalyst support includes: a slurry quantitative input means; a container being variable in volume, having an open upper part thereof into which a slurry is input by the slurry quantitative input means, and having a bottom thereof movable; a container moving means fastened to one side of the container; a moving means fastened to a lower part of the container and having a shaft connected to the bottom of the container; an overflow outlet being formed on a side part of the container and provided with a valve; and a pressurizing means disposed on the open upper part of the container.

A resin input nozzle (10A) which is adapted to engage or connect to a hollow resin-anchored rock bolt (12) to introduce a resin composed of a plurality of resin components (A,B,C), into and through the bolt, the nozzle including a body (14) with a leading end (16), a leading end portion which ends at a leading end and a trailing end (18), a first conduit (22) and a second conduit (24) formed through the body, each conduit having an outlet (28A, 28B), which opens at or adjacent the leading end, and at least one inlet (26A, 26B) which is adapted to engage with a supply of a respective resin component, wherein the outlets are spaced from one another to prevent mixing of the resin components as each emerges from a respective outlet after passage through a respective conduit.

A resin input nozzle (10A) which is adapted to engage or connect to a hollow resin-anchored rock bolt (12) to introduce a resin composed of a plurality of resin components (A,B,C), into and through the bolt, the nozzle including a body (14) with a leading end (16), a leading end portion which ends at a leading end and a trailing end (18), a first conduit (22) and a second conduit (24) formed through the body, each conduit having an outlet (28A, 28B), which opens at or adjacent the leading end, and at least one inlet (26A, 26B) which is adapted to engage with a supply of a respective resin component, wherein the outlets are spaced from one another to prevent mixing of the resin components as each emerges from a respective outlet after passage through a respective conduit.

The disclosure relates to a substrate coating apparatus that comprises a source of a washcoat; a washcoat showerhead for discharging the washcoat towards an upper surface of a substrate; a conduit fluidly connecting the source of the washcoat to the washcoat showerhead for supplying washcoat to the washcoat showerhead; a headset for engaging the substrate to locate the upper surface of the substrate below the washcoat showerhead; and a vacuum generator for drawing the washcoat discharged from the washcoat showerhead through the substrate. The headset comprises a partition comprising a plurality of holes, the partition being located in between the washcoat showerhead and the upper surface of the substrate when the substrate is engaged in the headset so as to maintain a first gap between a lower face of the partition and the upper surface of the substrate.

A substrate coating apparatus comprises a source of a washcoat, a washcoat showerhead comprising a showerhead plate having a plurality of nozzle apertures for discharging the washcoat towards a face of the substrate located below the washcoat showerhead, a conduit fluidly connecting the source of the washcoat to the washcoat showerhead for supplying washcoat to the washcoat showerhead and a partition ring located between the washcoat showerhead and the face of the substrate. The partition ring is dimensioned to be smaller than the face of the substrate and the substrate coating apparatus is configured in use to bring the partition ring into contact with the face of the substrate to thereby define a central region of the face of the substrate which lies within an interior of the partition ring and a peripheral region of the face of the substrate which lies outside the partition ring. The showerhead plate of the washcoat showerhead is configured in use to discharge washcoat onto both the central region and the peripheral region of the face of the substrate.

An apparatus and method of coating a substrate with a washcoat comprising: engaging the substrate (110) with a headset (6) of a substrate coating apparatus (100) so as to locate an upper surface of the substrate below a washcoat showerhead of the substrate coating apparatus; arranging a partition (200) between the washcoat showerhead and the upper surface of the substrate, the partition comprising a plurality of holes (202) and being located in the headset to maintain a first gap between a lower face (203) of the partition and the upper surface of the substrate; discharging a washcoat out of the washcoat showerhead onto an upper face (204) of the partition; and passing the washcoat through the holes (202) in the partition, onto the upper surface of the substrate and into the substrate, at least in part by applying a suction force to a lower surface of the substrate.

Disclosed is a method of in-situ application of a conformal surface treatment to an internal surface of a heat exchanger of a chiller comprising providing a surface treatment solution to an inlet of the heat exchanger of the chiller, urging a flow of the surface treatment solution along a flowpath from the inlet past a plurality of heat transfer tubes to an outlet of the heat exchanger of the chiller, collecting the surface treatment solution, forming the conformal surface treatment along an internal surface of the first manifold, the plurality of heat transfer tubes, the second manifold, and a plurality of interconnections therebetween, stopping the flow of the surface treatment solution, and removing the surface treatment solution from the chiller.