SCREEN FILTER Russian patent published in 2009 - IPC B01D35/02 

FIELD: engines and pumps.

SUBSTANCE: proposed screen filter comprises inlet hole communicating with outlet hole via flow chamber with cylindrical filter. Aforesaid inclined flow chamber has lateral hole with cover. The said hole features inner surface furnished with ledges made on opposite walls with cylindrical filter arranged there between with annular gaskets. Chamber inside flat surfaces go separately from the chamber rear wall towards the lateral hole edge relative to flow chamber crosswise axis. Annular gaskets feature circular recess on their inner surface for cylindrical filter to be attached thereto, while crosswise section of each gasket features a wedge shape. Angle between aforesaid flat surfaces and flow chamber crosswise axis of symmetry makes 1 to 3 degrees. Aforesaid annular gasket has thrust element on that side of crosswise section whereat its thickness is maximum. Annular gasket wedge angle makes 0.5 to 1.5 degrees. It has also lateral groove on its outer surface to receive flexible ring and circular flexible ledges.

EFFECT: tight joints, simpler assembly/disassembly.

6 cl, 7 dwg