Particulate removal

Patent metadata

Field	Value
Publication number	US-9713784-B2
Application number	US-201414262043-A
Country	US
Kind code	B2
Filing date	Apr 25, 2014
Priority date	Mar 29, 2011
Publication date	Jul 25, 2017
Grant date	Jul 25, 2017

Abstract

Embodiments provide methods, apparatuses, and articles of manufacture for filtering particulates from an airflow directed at a heat exchanger. A blade may gather the filtered particulates. The gathered particulates may then be exhausted.

First claim

What is claimed is:

1. A method, comprising:
generating an airflow;
filtering, by a filter, to remove particulates from the airflow directed toward a heat exchanger, wherein the heat exchanger is thermally coupled to a computing component;
directing the airflow through the heat exchanger while a blade is in a first blade positioned;
transitioning the blade from the first blade position to a second blade position so as to move a latch from a latch-closed position, precluding particulates removed from the airflow from entering an exhaust chute, to a latch-open position, allowing particulates removed from the airflow into the exhaust chute, the blade being shaped so that, when in the second position, the blade covers a majority of the filter and directs the airflow so that the airflow carries at least some of the particulates into the exhaust chute; and
exhausting the particulates in response to the transitioning.

2. The method of claim 1 , further comprising monitoring the airflow directed into the heat exchanger.

3. The method of claim 1 , wherein exhausting the particulates comprises opening the latch and directing the airflow through the latch.

4. The method of claim 1 , further comprising transitioning the blade from the second position to the first position in response to exhausting the particulates.

5. The method of claim 1 , further comprising closing the latch in response to transitioning the blade from the second blade position to the first blade position.

6. The method of claim 1 , further comprising:
determining whether a period of time has expired; and
wherein the transitioning is in response to a determination that the period of time has expired.

7. The method of claim 1 , further comprising:
monitoring a rotational speed of the fan; and
wherein the transitioning is in response to a decrease in the rotational speed.

8. The method of claim 1 , wherein exhausting the particulates comprises increasing a rotational speed of the fan generating the airflow.

9. The method of claim 1 , further comprising returning the blade to the first blade position in response to the traversal of a first side of the filter, the heat exchanger being disposed on a second side of the filter.

10. The method of claim 1 , wherein, the filter comprises an opening that is smaller than an opening of the heat exchanger.

11. The method of claim 1 , further comprising activating a lever coupled to the blade, wherein the lever is configured to actuate the blade.

12. The method of claim 1 , further comprising, in response to a receipt of a signal, activating a servo coupled to the blade, wherein the servo is configured to actuate the blade.

13. The method of claim 2 , wherein, the transitioning is in response to a determination that the airflow has decreased.

Assignees

• Hewlett Packard Development Co Lp
• Hewlett Packard Development Co Lp

Inventors

• Senatori Mark D

Classifications

• B01D46/681 Primary

  by scrapers, brushes or the like · CPC title

• B01D46/46

  automatic · CPC title

• B01D46/48

  Removing dust other than cleaning filters {, e.g. by using collecting trays} · CPC title

• B01D46/0065 Primary

  Operations & Transport · mapped topic

• B01D46/42

  Auxiliary equipment or operation thereof · CPC title