Patent ID: 7645329
Filing Date: 2010-01-12
Classification: B01D,F02M

Abstract:
1. A tamper resistant hydrocarbon trap and air filter assembly for vehicle internal combustion engines comprising: a) a tubular filter adaptor having a generally circular downstream end joined to a generally circular upstream end and terminating in an annular flange extending above the upstream end for accommodating the downstream end of an air filter; b) a generally cylindrical hydrocarbon trap filter formed with a layer of activated carbon granules sandwiched between two layers of a porous material enclosing an open core and extending from a sealed upstream end to a downstream end secured to the upstream end of the adaptor so that air passing between the two ends of the trap's filter is channeled through the upstream end of the adaptor; and c) a generally cylindrical air filter surrounding the trap filter and extending from a sealed upstream end forward of the trap filter's upstream end to a downstream end secured to the adaptor annular flange.