Patent ID: 7808792

Claim:
A chassis, comprising: a front section that contains a first electronic circuit board oriented in a first plane; a rear section that contains a second electronic circuit board oriented in a second plane, where the first plane and the second plane are substantially orthogonal; a midplane dividing the front and the rear sections; and a fan tray assembly including a plurality of fans to: provide a first portion of an airflow, having a first direction, from which a second portion of the airflow, having a second direction that is orthogonal to the first direction, is provided, cool, using the second portion of the airflow, the first electronic circuit board of the front section, provide, from the second portion of the airflow, a third portion of the airflow having a third direction that is orthogonal to the second direction, where the third direction is opposite the first direction, provide, from the third portion of the airflow, a fourth portion of the airflow having a fourth direction that is orthogonal to the first direction, the second direction, and the third direction, and cool, using the fourth portion of the airflow, the second electronic circuit board of the rear section, where the fan tray assembly is oriented on a third plane that is substantially parallel to the second plane.