Patent ID: 8191535
Filing Date: 2012-06-05
Classification: F02M,Y10T

Abstract:
1. A sleeve hydrocarbon trap, comprising: a hydrocarbon adsorbing sleeve positioned in a sensor bore and including one or more hydrocarbon adsorbing layers; and a cage adapted to retain the hydrocarbon adsorbing sleeve in the sensor bore, wherein said hydrocarbon adsorbing sleeve is a hydrocarbon adsorbing sheet in a rolled state with one or more hydrocarbon adsorbing layers and wherein the sensor bore is a MAF sensor bore, and wherein the hydrocarbon adsorbing sleeve further comprises at least one of a plurality of sleeve pattern holes cut into the hydrocarbon adsorbing sheet, where in the rolled state, the sleeve pattern holes overlap to form a sensor hole, the sensor hole positioned with a sensor inserted through the hydrocarbon adsorbing sleeve, and a plurality of sleeve pattern notches cut into the edge of the hydrocarbon adsorbing sheet, where in the rolled state, the sleeve pattern notches overlap to form a sleeve notch orienting the hydrocarbon adsorbing sleeve within the sensor bore.