Patent ID: 6432179
Filing Date: 2002-08-13
Classification: B01D,F02M,Y10S,Y10T

Abstract:
An air intake for an internal combustion engine comprising:an intake air flow passage; a filter element disposed within said air flow passage to remove fuel vapors from said passage, said filter element comprising a plurality of fibers; each of the fibers having an outer surface; each of the fibers further having a longitudinally extending internal cavity formed therein, and having a longitudinally extending slot formed therein extending from the internal cavity to the outer fiber surface; and a hydrocarbon-absorbing material disposed within the internal cavities of the fibers, wherein said filter element is configured so as to be in a blocking relation across said air flow passage when said engine is not in operation such that any fuel vapor in said air flow passage must contact said filter element, and to provide a pressure drop of less than 5 inches of mercury at a flow rate of 5000 ft3 per minute when said engine is in operation and drawing air through said air flow passage.