Patent ID: 7508663
Filing Date: 2009-03-24
Classification: H05K

Abstract:
1. A computer system, comprising: a computer rack configured to support a plurality of computer chassis in a computer stack region of the computer rack; a cooling plenum configured to draw air from a back side of a computer chassis supported in the computer rack and exhaust the air through an outlet port; and an airflow control member mounted to the computer rack and positioned between the cooling plenum and the computer stack region and providing an impedance to airflow between the computer stack region and the cooling plenum, the airflow control member providing a greater airflow impedance to a first portion of the computer stack region than to a second portion of the computer stack region; wherein the airflow control member comprises a plate having a plurality of apertures formed therein, the sizes of the apertures increasing with distance from the outlet port, wherein the rates of the airflow through apertures at each distance from the outlet port are configurable to be similar; wherein the airflow control member comprises a plurality of adjustable dampers, each of the plurality of apertures being associated with one of the plurality of adjustable dampers; wherein each of the plurality of adjustable dampers includes a substantially semi-circular shield that is rotatable to full open, to cover a portion of, and to fully close one of the plurality of apertures; and wherein each of the plurality of adjustable dampers is independently adjustable.