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US 2026/0034481 A1Published application
Enhanced fuel water separation using structural embossing
AssigneeParker-Hannifin Corporation
InventorsJason L. Tate, Sreevalli Bokka
Life of this patent
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Abstract
A filter media, filter element, filter system and methods are provided. The filter media provides improved filter characteristics including water separation efficiency. The filter media may include one or more of increased surface roughness and/or embossments. The filter media may be provided by pleated filter media.
Claims18
A pleated filter element comprising:
- filtration media pleated into a plurality of longitudinally extending adjacent opposed successive pleat flanks of selected depth and spacing between successive pleat flanks to provide spaced upstream and downstream filter surfaces, adjacent pleat flanks connected by corresponding fold lines;
- each of said successive pleat flanks have:
- a first side and a second side;
- a plurality of structural embossments formed in at least one of the first and second sides on adjacent flanks, the structural embossments have at least one of:
- i) different geometries between adjacent structural embossments on a flank;
- ii) different angles of projection along the at least one of the first and second sides relative to the longitudinal axis of the filtration media between adjacent embossments on a flank;
- iii) a non-polygonal configuration;
- iv) a tear drop geometry;
- and
- v) a first end and a second end defining an embossment axis extending between the first end and the second end, the embossment axis extending at a non-parallel and non-perpendicular orientation relative to the fold lines connected to the corresponding pleat flank.
7 more elements
A pleated filter element comprising:
- pleated filter media having a first side forming an upstream surface and a second side forming a downstream surface, the pleated filter media including a plurality of pleat flanks and a plurality of folds, adjacent pleat flanks connected by a corresponding one of the plurality of folds;
- and
- a plurality of structural embossments formed in at least one of the first and second sides of the pleat flanks, each structural embossment having a first end and a second end, the first and second end defining an embossment axis of the structural embossment, the embossment axis extending at a non-parallel and non-perpendicular orientation relative to the folds connected to the corresponding pleat flank.
A pleated filter element comprising:
- pleated filter media having a first side forming an upstream surface and a second side forming a downstream surface, the pleated filter media including a plurality of pleat flanks and a plurality of folds, adjacent pleat flanks connected by a corresponding one of the plurality of folds;
- and
- a plurality of structural embossments formed in at least one of the first and second sides of the pleat flanks, each structural embossment having a first end and a second end, the first and second end defining an embossment axis of the structural embossment;
- wherein:
- a first structural embossment of the plurality of structural embossments and a second structural embossment of the plurality of structural embossments are formed in a first pleat flank of the plurality pleat flanks;
- the embossment axis of the first structural embossment extending at a different angle relative to the corresponding one of the plurality of folds than the embossment axis of the second structural embossment;
- and
- the pleated filter media has a gravitational top and a gravitational bottom, the gravitational top being vertically above the gravitational bottom, the folds extending between the gravitational top and the gravitation bottom, the embossment axis of the first structural embossment being less aligned with gravity than the embossment axis of the second structural embossment, the first structural embossment being located closer to the gravitational top than the second structural embossment.
5 more elements
Dependencies are inferred from the claim text.