Patent ID: 6251265
Filing Date: 2001-06-26
Classification: B01D

Abstract:
A filter valve for filtering a coolant and controlling coolant flow volume, said filter valve comprising a hollow body having ends, couplers on said ends for coupling said hollow body in line with a coolant supply hose for flow of coolant through said hollow body, a filter element disposed in said hollow body for filtering coolant flowing through said hollow body, filter element having a substantially open end and a substantially closed end and being moveable within said hollow body in response to coolant flow through said filter element between a first position opening up communication through said hollow body and a second position restricting commutation through said hollow body, a biasing spring in said hollow body between and end of said hollow body and said substantially closed end of said filter element for yieldably biasing said filter element toward said first position and permitting said filter element to move toward said second position in response to coolant flow volume through said filter element above a predetermined threshold, and a seal at said substantially open end of said filter element for sealing against migration of coolant around said filter element.