Aerosol Separator; and Method
First Claim
Patent Images
1. A crankcase ventilation filter including:
- (a) a first, wet laid, media stage comprising;
(i) at least 30% by weight, based on total weight of fiber material in the stage, bi-component fiber material having an average largest fiber cross-sectional dimension of at least 10 microns and average length of 1-20 mm, inclusive; and
(ii) at least 30% by weight, based on total weight of fiber material in the stage, secondary fiber material having an average largest fiber cross-sectional dimension of at least 1 micron and average length of 1 to 20 mm, inclusive; and
(b) the first, wet laid, media stage having;
(i) calculated pore size, X-Y direction, of 12 to 50 microns, inclusive; and
(ii) an added binder resin content, if any, of no greater than 7% by total weight of fiber material.
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Abstract
Crankcase ventilation arrangements are shown. Preferred wet laid media materials, for use in such arrangements are described. Also described and shown are example crankcase ventilation components, parts for use with a preferred media described and characterized.
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Citations
14 Claims
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1. A crankcase ventilation filter including:
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(a) a first, wet laid, media stage comprising; (i) at least 30% by weight, based on total weight of fiber material in the stage, bi-component fiber material having an average largest fiber cross-sectional dimension of at least 10 microns and average length of 1-20 mm, inclusive; and (ii) at least 30% by weight, based on total weight of fiber material in the stage, secondary fiber material having an average largest fiber cross-sectional dimension of at least 1 micron and average length of 1 to 20 mm, inclusive; and (b) the first, wet laid, media stage having; (i) calculated pore size, X-Y direction, of 12 to 50 microns, inclusive; and (ii) an added binder resin content, if any, of no greater than 7% by total weight of fiber material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A crankcase ventilation filtration assembly comprising:
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(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, wet laid, media stage comprising; (A) at least 30% by weight bi-component fiber material having an average largest fiber cross-sectional dimension of at least 10 microns and an average length of 1-20 mm, inclusive; (B) at least 30% by weight secondary fiber material having an average largest fiber cross-sectional dimension of at least 1 micron and average length of 1 to 20 mm, inclusive; and (ii) the first, wet laid, media stage having; (A) calculated pore size, X-Y direction, of 12 to 50 microns, inclusive; and
,(B) an added binder resin content of no greater than 7% by total weight of fiber material. - View Dependent Claims (13, 14)
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Specification