Patent ID: 8408981
Filing Date: 2013-04-02
Classification: F04D,G06F

Abstract:
1. An exhaust device, disposed on an air flow channel provided for a hot air flow to pass there through, comprising: a plurality of vanes, disposed on the air flow channel in such a manner that the vanes are rotatable and interlocked with each other, wherein the plurality of vanes comprises a left vane and a right vane located on two sides, and has a left outlet position and a right outlet position; a first memory deformable element, connected to the right vane, wherein when the vanes are located on the left outlet position, the right vane shields the first memory deformable element; and a second memory deformable element, connected to the left vane, wherein when the vanes are located on the right outlet position, the left vane shields the second memory deformable element; wherein the first memory deformable element and the second memory deformable element are alternately shielded by the right vane or the left vane, or alternately heated by the hot air flow, such that the first memory deformable element and the second memory deformable element are alternately deformed or restored, so as to drive the vanes to rotate and swing back and forth between the left outlet position and the right outlet position to allow automatic changing of an exhaust direction for the hot airflow out of the airflow channel.