US Patent 10183573 Vehicle grille flow control assembly and method

An exemplary flow control assembly includes, among other things, a grille member and a flow control device having a plurality of bowed shutters adjacent the grille member. The bowed shutters are configured to move back and forth between a flow permitting position and a flow restricting position. An exemplary flow control method includes, among other things, moving a plurality of bowed shutters back and forth between a flow permitting position and a flow restricting position. The flow permitting position permitting more flow through apertures in a grille member than the flow restricting position.