A strainer is provided in an interior of an injection pipe serving as an injection opening through which a liquid containing a reducing agent is injected into a tank body. In the strainer, a front end portion, having a substantially triangular or substantially trapezoidal shape when a cross section is taken along a plane including an axis of a strainer body having a substantially cylindrical shape, is formed integrally with a front end of the strainer body.

An axial extension part is proposed which makes it possible to use a filter cartridge (25) of larger axial dimensions than a standard filter cartridge for which the axial depth of a hollow housing (11) of a casing (10) of a selective catalytic reduction (SCR) device has been provided. This makes it possible to have different filtration characteristics without having to modify the casing. The larger filter cartridge (25) can be inserted into the extension part when this part is mounted in the housing (11) of the casing (10). The cartridge is sealed therein when the sealing cap (21) is put in place to close the opening at the rear end of the part.

A filter device for a water-bearing domestic appliance which has a surface filter with a sleeve shape, a support structure for said surface filter and a flow-through filter housing with filter inlet and filter outlet. The surface filter is held stably on the support structure, which has through-flow openings and a central opening at the end. A first flow path for water leads into the support structure and out again through the through-flow openings and the surface filter. A second flow path leads into the support structure and out again only through the central opening. The support structure is designed circumferential and is formed by support ribs which between them comprise the through-flow openings. The surface filter is attached or pressed onto the outside of the support structure in such a way that it covers the through-flow openings and rests on the outside of the support ribs.

A filter, for insertion into an inlet duct of a water filtration system, has an annular upper end delimiting an opening around a longitudinal axis and defining a filter diameter. A side wall extends, around the longitudinal axis, between the annular upper end and a bottom wall that extends opposite the opening. The side and/or bottom walls have orifices to allow water to flow therethrough while retaining solid elements. The sidewall wall comprises a plurality of arms that each extend between a lower edge, connected to the bottom wall, and an upper edge forming part of the annular upper end. Each arm extends along an adjustable inclination so that the filter diameter is variable according to the inclination of each arm. When the filter is inserted into the inlet duct, the inclination of the arms is adjusted so that the filter diameter is adapted to the inlet diameter.

A filter element, for use filtering liquids such as fuel, includes a first section of filter media, an optional layer of coalescer media, and a section of barrier media. The first section and optional coalescer filter media are held between opposite first and second end caps. The second end cap is integrated with the barrier filter media. The barrier media extends at least part way into an interior of the first section and can be conical in shape.

In one embodiment, a sand boil filter apparatus has a filter cone including an inner cone mesh and an outer cone mesh, the inner cone mesh having a finer mesh than the outer cone mesh. A filter tube extends through the hollow interior of the filter cone. The filter tube includes a lower portion disposed below the open apex. The filter tube includes an upper portion disposed above the open base. The upper portion has a plurality of sets of exit openings which are spaced along a length of the upper portion to provide different possible exit heights for the plurality of sets of exit openings, each set including one or more exit openings disposed at an exit height of the filter tube. An exit height adjustment tool blocks all of the exit openings disposed below a set of unblocked exit openings selected to provide a corresponding exit height.

Filters comprising a filter arm comprising a plurality of hollow elements in fluid communication with each other, the hollow elements having porous walls, the filter arm having a first and a second end; a hollow transition element comprising a collector having a side wall, a central cavity, an upper closed end and a lower open end; and a hollow transition element arm having a first and a second transition arm end, and a porous side wall; wherein the first transition arm end is in fluid communication with the second end of the filter arm; and the second transition arm is connected to the side wall of the collector, and is in fluid communication with the central cavity of the collector; and, a hollow base having a side wall, and a base outlet port, wherein the hollow base connected to, and in fluid communication with, the collector; filter devices including the filters, and methods of filtration using the filters, are disclosed.

An assembly (1) for filtering water comprising: a filter (10) forming a permeable receptacle for fluid to be filtered, an actuating inlet (300) for providing a stream of water, a filter fluid inlet (302) for providing fluid to be filtered to the filter (10), and, a rotatable cleaning structure (20) for cleaning the filter (10), wherein the structure (20) comprises at least one scraper (201) extending along and substantially abutting a first surface (101) of the filter (10), the scraper (201) being rotatable with respect to the first surface (101) of the filter (10), and wherein the structure (20) further comprises at least one rotatable element (250) arranged for receiving the stream of water, the stream of water being receivable in, and filterable by, the filter (10) and wherein the element (250) is rotationally engaged with the scraper (201) such that the stream of water providing a rotational force to the element (250), rotates the scraper (201) with respect to the first surface (101) of the filter.

A pod assembly for use in a beverage machine is provided. The pod assembly includes a container and a filter disc that is detachably coupled to the container. The container includes a base, a side wall having a lower rim coupling the side wall to an outer perimeter of the base, and a flange coupled to an upper rim of the side wall and extending radially outward from the upper rim. The filter disc includes a central portion with multiple central openings, a dome-shaped portion with multiple secondary openings, an annular portion extending radially outward from the dome-shaped portion, a foot portion extending vertically from the annular portion in a first direction, and a retention flange extending vertically from the annular portion in a second direction.

A method of continuous filtration of contaminants from a contaminated viscous fluid, the method may include: pumping the contaminated viscous fluid between a non-perforated surface being a first cylinder and a second perforated surface being a second cylinder disposed substantially parallel to each other at a defined first gap, moving the non-perforated surface and the perforated surface with respect to each other includes one or more longitudinal fins protruding from second cylindrical body into the first gap towards the perforated surface of the first cylindrical body thereby forming a second gap between the distal tips of the fins and the perforated surface, thereby forcing movement of the contaminated viscous fluid in a direction substantially parallel to the relative speed thereby generating a shear rate in the contaminated viscous fluid near the perforated surface in the direction substantially parallel to the relative speed.