Pleated filtration media, media packs, filter elements, and methods for filtering fluid are provided which contain three dimensional flutes in the media surface, the flutes configured to improve filter performance. In certain embodiments the flutes have defined peaks that reduce masking between adjacent pleats, the flutes have ridges along their length to modify flute cross sectional geometry, and/or the flutes provide for volume asymmetry across the media.

A filter assembly and cage and/or capsule apparatus including upstream and downstream and optional intermediary supports having modified features to maximize fluid flow through the filter assembly. The cage apparatus has a plurality of posts with stacked ridges that function as cap engaging teeth. A cage end cap is formed with a plurality of slots corresponding in configuration and position to the plurality of posts. The combination of slots and ridges interact to create a locking mechanism to adjustably secure the end cap to the cage and to generate the necessary compression to seal the enclosed filter discs and supports. The upstream supports are formed with channels in an outer ring and optional channels in radially extending ribs to improve fluid ingress and transfer to the filter discs. The downstream supports are formed with channels or tunnels in an inner ring to facilitate filtrate egress into a filter assembly outlet.

A filter assembly and cage and/or capsule apparatus including upstream and downstream and optional intermediary supports having modified features to maximize fluid flow through the filter assembly. The cage apparatus has a plurality of posts with stacked ridges that function as cap engaging teeth. A cage end cap is formed with a plurality of slots corresponding in configuration and position to the plurality of posts. The combination of slots and ridges interact to create a locking mechanism to adjustably secure the end cap to the cage and to generate the necessary compression to seal the enclosed filter discs and supports. The upstream supports are formed with channels in an outer ring and optional channels in radially extending ribs to improve fluid ingress and transfer to the filter discs. The downstream supports are formed with channels or tunnels in an inner ring to facilitate filtrate egress into a filter assembly outlet.

The present relates to an oil filtration system (1) comprising an oil filtration unit (2), an oil filter (13) having a central opening (15) extending along a central axis (B) of the oil filter (13), the oil filtration unit (2) being provided with at least one first physical structure (18,18,18) having a first cross-sectional shape and a predefined longitudinal length (x) in relation to the central axis (A) of the oil filtration unit (2), the oil filter (13) being provided with at least one second physical structure (23,23,23) having a second cross sectional shape and a predefined longitudinal length (y) in relation to the central axis (B) of the oil filter (13) and an inner or outer periphery of the second physical structure (23,23,23) being arranged to mate with the outer or inner periphery of the first physical structure (18,18,18) allowing the oil filter (13) to reach its correct insertion position in the oil filtration unit (2), where at least one of the end surfaces (28,29,31) of the oil filter (13) relative to the central axis (B) of the oil filter (13) comprises the at least one second physical structure (23,23,23).

Filter disk segments, methods of use, and filter devices including the filter disk segments are disclosed.

A filter system may include a filter housing and a filter. The filter may include layers of impermeable material. Additionally, the filter may include at least one first layer of corrugated filter media situated between layers of the impermeable material. The at least one first layer may at least partially define a first plurality of flutes extending from a first side of the filter to a second side of the filter. The filter may also include at least one second layer of corrugated filter media situated between layers of the impermeable material. The at least one second layer may at least partially define a second plurality of flutes extending from a third side of the filter to a fourth side of the filter. The housing may be configured to direct a first fluid into the first side of the filter, and direct a second fluid into the third side of the filter.

A filter system may include a filter housing and a filter. The filter may include layers of impermeable material. Additionally, the filter may include at least one first layer of corrugated filter media situated between layers of the impermeable material. The at least one first layer may at least partially define a first plurality of flutes extending from a first side of the filter to a second side of the filter. The filter may also include at least one second layer of corrugated filter media situated between layers of the impermeable material. The at least one second layer may at least partially define a second plurality of flutes extending from a third side of the filter to a fourth side of the filter. The housing may be configured to direct a first fluid into the first side of the filter, and direct a second fluid into the third side of the filter.

A solid-liquid separation system having a filter cylinder, a filter cloth laying assembly, an assembly for carrying and moving the filter cylinder, a squeezing assembly, and an assembly for laying a filter cloth, unloading materials and rolling up a filter cloth. The assembly for carrying and moving the filter cylinder is located below the filtering cylinder and includes a working position A and a working position B, and the squeezing assembly is located above the filtering cylinder at the working position B. The filter cloth laying assembly includes a laying and folding component and a dispensing component, and the dispensing component is located above the filter cylinder. The laying and folding component is used for laying a filter cloth in the filter cylinder, and the dispensing component is used for spraying downward materials to be treated onto the filter cloth.

A solid-liquid separation system having a filter cylinder, a filter cloth laying assembly, an assembly for carrying and moving the filter cylinder, a squeezing assembly, and an assembly for laying a filter cloth, unloading materials and rolling up a filter cloth. The assembly for carrying and moving the filter cylinder is located below the filtering cylinder and includes a working position A and a working position B, and the squeezing assembly is located above the filtering cylinder at the working position B. The filter cloth laying assembly includes a laying and folding component and a dispensing component, and the dispensing component is located above the filter cylinder. The laying and folding component is used for laying a filter cloth in the filter cylinder, and the dispensing component is used for spraying downward materials to be treated onto the filter cloth.

The filter element of a filter has an internal face, an external face, a filtering mesh, two concentric edges, respectively an inner edge and an outer edge between which the filtering mesh extends, and main ribs provided at least on the internal face, the main ribs extending substantially radially between the edges and being distributed circumferentially in order to form sectors on the internal face, the filter element being configured to be assembled against a corresponding filter element so that the internal face faces the internal face of the corresponding filter element and the main ribs delimiting the sectors act to circumferentially form compartments in a space between the internal face and the corresponding filter element, the inner edge having inner passages respectively communicating with corresponding ones of the sectors, wherein at least one rib extending between the edges is a curved rib which is curved over its whole length.