Particulate Removal Tool

• US 20080184679A1
• Filed: 02/01/2008
• Published: 08/07/2008
• Est. Priority Date: 02/02/2007
• Status: Active Grant

• Current Assignee: SPX Corporation
• Original Assignee: SPX Corporation
• Inventors: Painter, David, Katinas, Jade, Brown, William Clayton, Sellers, Cheryl Lynn, Sarnes, James, Driscoll, James Josh, Stringfield, Jamie Erin, Vinyard, Eric, Cooper, Jason Scott, Gasper, Mark, Norland, Stan, Jirele, Jim
• Granted Patent: US 8,070,857 B2
• Time in Patent Office: Days
• US Class Current: 55/283
• CPC Class Codes: B01D 41/04 of rigid self-supporting filtering material

Abstract

A particulate removal tool and method are provided to remove the particulates such as ash and soot from a particulate filter. The particulate filter can be placed on a filter holder in a housing of the tool where a quick burst of air can be provided to clean the particulate filter. The air then can travel to a container which includes additional filter to filter the air. A vacuum can be used to remove additional particulates from the container.

Claims

1. A particulate removal tool that cleans a diesel particulate filter, comprising:

a control panel having a controller to control the particulate removal tool functions, wherein the control panel includes an input device;

an air tank that supplies air for a burst of air to clean the diesel particulate filter to be cleaned;

a filter cone adapted to mate with the diesel particulate filter to be cleaned and to receive the air from the air tank;

a quick acting valve controlled by the controller and configured to provide the burst of air to clean the diesel particulate filter to be cleaned, wherein the air used by the quick acting valve is supplied by the air tank;

a filter holder configured to hold the diesel particulate filter to be cleaned in place on a movable table;

a hydraulic pump to move the movable table;

a collection container having a first filter to filter a particulate filled air resulting from the cleaning of the diesel particulate filter to be cleaned; and

a vacuum to remove particulate from the tool, wherein a filter housing is configured to house the diesel particulate filter to be cleaned, the filter cone, the filter holder, and the movable table.

2. The tool of claim 1 further comprising:

a display connected with the controller to display information to a user;

a bellow coupled to the movable table and configured to contain particulates loosened during the cleaning of the diesel particulate filter;

a pressure transducer configured to measure a pressure in the tool and controlled by the controller; and

a quick disconnect that releases the filter cone from the tool.

3. The tool of claim 2, wherein a clamping pressure is created between the cone and the filter in part by the movable table and the pressure transducer determines the clamping pressure, the pressure in the collection container and conveys a reading to the controller.

4. The tool of claim 2 further comprising of reverse flow valves to reverse the flow of air through the first filter in the collection container to clean the first filter, wherein the air to the reverse flow valves is provided by an external air source and the controller controls the activation of the reverse flow valves based on the reading of the pressure transducer.

5. The tool of claim 1 further comprising:

an external air source that supplies air to the air tank;

solenoid valves to direct the air from the external air source to the air tank, and to reverse flow valves that reverse a flow of air through the first filter in the collection container to clean the first filter; and

a second filter and a dryer to clean and dry the air from the external air source before the air enters the air tank.

6. The tool of claim 1, wherein the filter holder includes steps configured to receive various sizes of diesel particulate filter to be cleaned and sealing members that mate with the diesel particulate filter.

7. The tool of claim 1 further comprising:

a HEPA filter configured to filter the air before it is released to the surrounding environment;

an LED positioned on a surface of the control panel and communicates with the controller;

a door sensor to detect when a door of the filter is open; and

a window provided on the filter housing to allow a user to see the cleaning operation.

8. The tool of claim 3, wherein the clamping pressure ranges from about 500 to 2000 p.s.i.

9. A method of cleaning a diesel particulate filter, comprising:

providing air to an air tank from an external air source, wherein the air tank provides air for a burst of air;

placing a diesel particulate filter on a filter holder housed in a filter housing of a particulate removal tool;

moving the diesel particulate filter in position underneath a filter cone in the filter housing with a movable table, wherein the movable table is moved with a pump;

creating a clamping pressure between the diesel particulate filter and the filter cone based partly on the position of the movable table;

providing the burst of air from a quick acting valve to clean the diesel particulate filter, wherein particulates trapped in the diesel particulate filter are displaced into a surrounding air; and

moving the surrounding air with the displaced particulates to a collection container.

10. The method of claim 9 further comprising:

measuring a clamping pressure with a transducer;

transmitting the clamping pressure to a controller;

providing a mini burst before the burst of air to determine if the diesel particulate filter is too clogged for cleaning; and

filtering the air in the collection container with a filter.

11. The method of claim 9 further comprising:

filtering the air in the collection container with a second filter by flowing air in a first direction; and

displaying a status of the cleaning with a display.

12. The method of claim 11 further comprising:

measuring the pressure in the collection container to determine if the second filter needs cleaning; and

cleaning the second filter by flowing the air in a second direction if the second filter needs cleaning.

13. The method of claim 11 further comprising:

entering information regarding the diesel particulate filter with an input device; and

toggling the vacuum between an on and off position depending on the state of cleaning.

14. A particulate removal tool that cleans a diesel particulate filter, comprising:

a means for controlling having a means for processing configured to control the particulate removal tool functions, wherein the means for controlling includes a means for inputting;

a means for supplying air configured to supply air for a burst of air to clean the diesel particulate filter to be cleaned;

a means for adapting configured to adapt to mate with the diesel particulate filter to be cleaned and to receive the air from the means for supplying air;

a means for pulsating air controlled by the means for processing and configured to provide the burst of air to clean the diesel particulate filter;

a means for holding configured to hold the diesel particulate filter to be cleaned in place on a means for supporting;

a means for moving configured to move the means for supporting, wherein a clamping pressure is created between the means for adapting and the filter in part by the means for supporting;

a means for collecting having a first filter to filter particulate filled air resulting from the cleaning of the diesel particulate filter to be cleaned; and

a means for vacuuming configured to remove particulate from the tool, wherein a means for housing is configured to house the diesel particulate filter to be cleaned, the means for adapting, the means for holding, and the means for supporting.

15. The tool of claim 14 further comprising:

a means for displaying connected with the means for processing to display information to a user;

a bellow coupled to the means for supporting and configured to contain particulates loosened during the cleaning of the diesel particulate filter;

a means for sensing pressure configured to measure a pressure in the tool and controlled by the means for processing; and

a means for disconnecting that releases the means for adapting from the tool.

16. The tool of claim 15, wherein the means for sensing pressure determines the clamping pressure, the pressure in the means for containing and conveys a reading to the means for processing.

17. The tool of claim 15 further comprising of means for reversing air flow configured to reverse the flow of air through the first filter in the means for collecting to clean the first filter, wherein the air to the means for reversing is provided by an external air source and the means for processing controls the activation of the means for reversing based on the reading of means for sensing pressure.

18. The tool of claim 14, wherein the means for adapting includes steps configured to receive various sizes of diesel particulate filter to be cleaned and sealing members that mate with the diesel particulate filter.

19. The tool of claim 14 further comprising:

a HEPA filter configured to filter the air before it is released to the surrounding environment;

an LED positioned on a surface of the control panel and communicates with the controller;

a door sensor to detect when a door of the filter is open; and

a window provided on the filter housing to allow a user to see the cleaning operation.

20. The tool of claim 14, wherein the clamping pressure ranges from about 500 to 2000 p.s.i.