Crankcase Ventilation Filter

Abstract

A crankcase ventilation filter includes a media stage comprising continuous, extruded fibres having a largest cross sectional size of at least 10 microns, a calculated pore size in the x-y direction of 10-60 microns, an added binder resin content if any of no greater than 7% by weight of the total fibre material; the continuous fibres being bonded at spaced locations. An assembly comprising the filter and a housing including a gas flow inlet, a gas flow outlet and a liquid drain.

1 . A crankcase ventilation filter including: 
 (a) a first media stage comprising continuous, extruded, fibers having a largest cross-sectional size of at least 10 micron, a calculated pore size, X-Y direction, of 10-60 microns, and an added binder resin content, if any, of no greater than 7% by weight of total fiber material; 
 (i) the continuous fibers being bonded at spaced locations.  
   
   
   
       2 . A crankcase ventilation filter according to  claim 1  wherein: 
 (a) the first media stage comprises a tubular construction.    
   
   
       3 . A crankcase ventilation filter according to  claim 2  wherein: 
 (a) the tubular media construction is positioned in extension between first and second end caps.    
   
   
       4 . A crankcase ventilation filter according to  claim 1  wherein: 
 (a) the first media stage includes no more than 3%, by weight, added binder resin, if any.    
   
   
       5 . A crankcase ventilation filter according to  claim 1  wherein: 
 (a) the continuous extruded fibers are bicomponent fibers.    
   
   
       6 . A crankcase ventilation filtration assembly comprising: 
 (a) a housing including a gas flow inlet arrangement, a gas flow outlet arrangement and a liquid drain outlet arrangement; and    (b) a serviceable crankcase ventilation filter operably positioned within the housing and comprising: 
 (i) a first media stage comprising continuous, extruded, fibers having a largest cross-sectional size of at least 10 micron, a calculated pore size, X-Y direction, of 10-60 microns, and an added binder resin content, if any, of no greater than 7% by weight of total fiber material; 
 (A) the continuous fibers being bonded at spaced locations.