Patent ID: 8262759
Filing Date: 2012-09-11
Classification: B01D,F02M

Abstract:
1. A filter device for filtration of gaseous fluids, comprising: a filter housing defining a receptacle therein and including a first filter element and a second filter element arranged within said receptacle behind one another in an axial direction of said filter housing; a first bypass passage that bypasses fluid from said inlet around said first filter element to said second filter element; a second bypass passage that bypasses said second filter element; wherein an inflow side of said second filter element arranged axially behind said first filter element is fluidically connected to said first bypass, wherein an outflow side of said first filter element is fluidically connected to said second bypass, wherein fluid to be filtered passes in a flow direction through said first bypass to said inflow side of said second filter element, wherein said first filter element and said second filter element are arranged in a parallel flow connection with each filter element filtering a different mass flow portion of an entire mass flow of gaseous fluids entering said inlet, and wherein at least one of said bypass passages extends through an interior of one of said filter elements.