Apparatus and method for pumping air for exhaust oxidation in an internal combustion engine

摘要

An apparatus and method for producing air flow in a vehicle that uses a cooling fan for an engine of the vehicle. The cooling fan has plurality of blades, which define an outer perimeter of the fan. The apparatus also includes a housing surrounding at least a portion of the outer perimeter of the fan and a plurality of vanes between the housing and the fan. The vanes are revolved around the outer perimeter of the fan to direct air into the housing.

主权项

1. An apparatus for moving air in a vehicle comprising:
a cooling fan for an engine of the vehicle having a plurality of blades, the plurality of blades defining an outer perimeter of the fan; a housing surrounding at least a portion of the outer perimeter of the fan, said housing including one or more compression chambers each extending along a circumferential direction of said housing and having a cross-sectional area that varies in the circumferential direction; and a plurality of vanes between the housing and the fan, the vanes revolving around the outer perimeter of the fan to direct the air into the one or more compression chambers of said housing.