Air filter assembly with improved liquid drainage

• Main Authors: HEDLUND, Kenny, MUTHU KRISNAN, Mageshvaran, NG, Cheah Wei, IGGANDER, Daniel
• Format: Patent
• Language: English
• Published: 03.08.2021
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; GAS-TURBINE PLANTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING; WEAPONS

An air filter assembly and use thereof for filtration of air in wet or damp conditions, said air filter assembly comprising: an air filter (100) comprising a front frame (112) defining at least one rectangular aperture (120) for receiving an air flow to be filtered, wherein said air filter is a panel filter, a deep pleat box filter, or a V-type filter, wherein said air filter comprises at least one rectangular pleated filter element (104), and wherein said air filter conforms to a filtration class from G4 up to H13 according to the standards EN779 or EN 1822; characterized in that said air filter assembly comprises a deflector element (130a) extending alongside an edge portion (132a) of the rectangular aperture and adapted to deflect an airflow passing through the rectangular aperture away from an adjacent inside surface (122a) of the air filter; and a liquid drain (140a) arranged between said deflector element and said edge portion of the rectangular aperture, such that liquid collected at said adjacent inside surface of the air filter can exit the air filter through said liquid drain.