Patent ID: 6318563
Filing Date: 2001-11-20
Classification: B01D

Abstract:
A filter apparatus comprising:a housing being in communication with an inlet passage, with a drain passage for non-filtered fluid and with an outlet passage for filtered fluid and having an aperture;a filter element disposed within said housing between said inlet passage and said outlet passage for separating particles from said non-filtered fluid; said filter element having a circumferential external surface and an internal cylindrical surface defining an internal cavity and a central axis, one of said surfaces being in communication with the outlet passage and the other surface being in communication with the inlet passage and drain passage; anda cleaning mechanism comprising a hollow portion extending through said aperture and connected on one end to an external means adapted to be in communication with an external source of pressurized fluid and an external source of power, and on the other end connected to a discharge device disposed in said internal cavity and having at least one opening for discharging pressurized fluid;wherein said cleaning mechanism is adapted to simultaneously direct pressurized fluid from a source external of said housing through said external means, said hollow portion, and said discharge device to discharge said pressurized fluid from said at least one opening to splash fluid on the internal surface of said filter element, while said external source of power causes said external means to move said discharge device linearly across said filter element, whereby causing said filter element to be cleaned; wherein said discharge device comprises at least one eccentric opening to discharge an eccentric jet.