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US 2012/0237340 A1Published application
Active air flow adjustable fan
AssigneeDelta Electronics, Inc.
InventorsShang-Yen TSAI, Hsin-Chen LIN
Life of this patent
Estimating the term…
Abstract
A fan includes at least one fan frame, at least one impeller and at least one active flow-control device. The fan frame includes at least one air inlet and at least one air outlet. The impeller is disposed in the fan frame. The active flow-control device is disposed on the fan frame for adjusting the size of the air inlet or the size of the air outlet according to demands.
Claims14
An active air flow adjustable fan, comprising:
- a fan frame, having a air inlet and two air outlets and comprising a tongue located between the two air outlets;
- an impeller, disposed within the fan frame and configured to actuate air flow from the air inlet to the two air outlets;
- and
- an active flow-control device, disposed at the inner edge of the tongue, which faces the impeller, wherein the active flow-control device moves in a sliding manner along the inner edge of the tongue and is configured to at least partially overlap with one of the two air outlets to change the amount of air flow passing therethrough.
1 more element
An active air flow adjustable fan, comprising:
- a fan frame, having a air inlet, a first air outlet, and a second outlet and comprising a tongue located between the first and second air outlets;
- an impeller, disposed within the fan frame and configured to actuate air flow from the air inlet to the first and second air outlets;
- and
- an active flow-control device, disposed at the first outlet adjacent the tongue and rotating about an axis adjacent the tongue, wherein the active flow-control device is configured to at least partially overlap with the first outlet to simultaneously change the amount of air flow passing through the first and second air outlets, wherein while the distal end of the active flow-control device is approached the tongue, the amount of air flow in the first outlet decrease, and while the distal end of the active flow-control device is away from the tongue, the amount of air flow in the first outlet increase.
1 more element
Dependencies are inferred from the claim text.