Air cleaner, components thereof, and methods

Patent metadata

Field	Value
Publication number	US-2020246741-A1
Application number	US-202016856639-A
Country	US
Kind code	A1
Filing date	Apr 23, 2020
Priority date	Mar 31, 2009
Publication date	Aug 6, 2020
Grant date	—

Abstract

A filter cartridge includes a media pack having first and second opposite flow faces; the media pack comprising flutes extending in a direction between the inlet flow face and the outlet flow face; a frame mounted on the second flow face of the media pack; a seal support section extending from the base member; and first and second opposite and spaced blades extending from the base member and in a different direction from the base member as the seal support section. The first and second blades are embedded within the media pack through the second flow face. A seal member is oriented against the seal support section. The filter cartridge can be removably oriented in a cassette. The cassette and filter cartridge are removably oriented in an air cleaner housing. The cassette may include lugs to help position the cartridge in sealing engagement with the air cleaner housing. In another embodiment, the filter cartridge is cassette-free and includes a cartridge-handle projecting therefrom.

First claim

What is claimed is:

1 . An air filter cartridge comprising:
(a) a media pack having inlet and outlet opposite flow faces; the media pack comprising a z-filter media construction having a network of inlet and outlet flutes, inlet flutes being open at a region adjacent the inlet face and being closed at a region adjacent the outlet face; and, outlet flutes being closed adjacent the inlet face and being open adjacent the outlet face and oriented with flutes of each fluted sheet extending in a direction between the inlet and outlet flow faces;
(i) the media pack having opposite first and second portions and opposite third and fourth portions therebetween;
(ii) the third and fourth portions are longer than the first and second portions;
(b) a frame secured to the media pack and mounted against the outlet flow face and a seal support section; the frame being a portion of a shell around the media pack;
(i) the frame including a media face cross-piece arrangement extending across the outlet flow face;
(c) a seal member oriented against the seal support section; and (d) a cartridge-handle projecting from the shell along the third portion of the media pack.

2 . The air filter cartridge of claim 1 wherein the media pack comprises a stack of strips of a fluted media sheet secured to a facing media sheet and oriented with flutes of each fluted sheet extending in a direction between the inlet face and outlet face.

3 . The air filter cartridge of claim 1 wherein the third and fourth portions are straight sides.

4 . The air filter cartridge of claim 1 wherein the seal member has a surface configured to from a radially outwardly directed seal.

5 . The air filter cartridge according to claim 1 wherein:
(a) the inlet flow face has a rectangular perimeter shape; and
(b) the outlet flow face has a rectangular perimeter shape.

6 . An air filter cartridge according to claim 1 wherein:
(a) the seal support section has an end tip; and
(b) a portion of the seal member is positioned over the end tip.

7 . An air cleaner comprising:
(a) a housing including a surrounding housing-wall defining an open interior; an inlet arrangement; and an outlet arrangement; the inlet arrangement and outlet arrangement being at opposite ends of the housing; the housing defining an access opening in communication with the open interior; (b) a cover removably secured to the housing over the access opening; the cover having an exterior surface and an opposite interior surface, the interior surface facing the housing open interior; (c) a cassette-free filter cartridge removably oriented for selective removal within the open interior between the inlet arrangement and outlet arrangement; the filter cartridge including a media pack having inlet and outlet opposite flow faces; the media pack comprising a z-filter media construction having a network of inlet and outlet flutes, inlet flutes being open at a region adjacent the inlet face and being closed at a region adjacent the outlet face; and, outlet flutes being closed adjacent the inlet face and being open adjacent the outlet face and oriented with flutes of each fluted sheet extending in a direction between the inlet and outlet flow faces; and a seal member secured to the media pack; the seal member forming a releasable seal with a sealing surface in the housing so that the filter cartridge is in sealing engagement with the housing;
(i) a handle sized to accommodate at least a portion of a human hand extending from the filter cartridge; and
(ii) the interior surface of the cover includes a receiver that contains at least a portion of the cartridge-handle when the filter cartridge is operably oriented within the housing interior and when the cover is secured over the access opening;
(d) the cover further includes a projection arrangement extending from the interior surface into the housing open interior, when the cover is secured over the access opening;
(i) the projection arrangement being between the inlet face of the filter cartridge and the housing surrounding wall; and
(iii) the receiver is between the projection arrangement and laterally spaced therefrom.

8 . An air cleaner according to claim 7 wherein:
(a) the filter cartridge includes a shell with first and second opposing shell walls secured to the media pack; the handle projecting from the first shell wall.

9 . An air cleaner according to claim 8 wherein:
(a) the shell includes a frame extending between and joining the first and second shell walls; the frame being mounted against the second flow face of the media pack; the frame including:
(i) a base member defining an airflow opening arrangement in communication with the second flow face;
(ii) a seal support section extending from the base member along a perimeter of the airflow opening arrangement; and

(b) the seal member is oriented against the seal support section.

10 . An air cleaner according to claim 7 wherein:
(a) the cover has a free end with a grip for manipulating the cover;
(b) the projection arrangement is located adjacent to the free end; and
(c) the inlet arrangement includes a precleaner;
(i) the grip projecting over the precleaner.

11 . An air cleaner according to claim 7 further including:
(a) a safety element operably located between the outlet flow face of the filter cartridge and the outlet arrangement of the housing.

12 . A method of servicing an air cleaner; the method comprising:
(a) grasping a cover of an air cleaner and pivoting the cover away from an air cleaner housing; the step of pivoting the cover away includes:
(i) moving a projection arrangement extending from the cover from a position adjacent to a cassette-free filter cartridge; and
(ii) exposing a handle on the cassette-free filter cartridge from a receiver in the cover;
(b) releasing a seal between the filter cartridge and the housing by removing the filter cartridge from the housing;
(i) the filter cartridge including a media pack comprising a z-filter media construction having a network of inlet and outlet flutes, inlet flutes being open at a region adjacent the inlet face and being closed at a region adjacent the outlet face; and, outlet flutes being closed adjacent the inlet face and being open adjacent the outlet face and oriented with flutes of each fluted sheet extending in a direction between the inlet and outlet flow faces;
(c) providing a new filter cartridge; the new filter cartridge including:
(i) a media pack having opposite inlet and outlet flow faces; the media pack comprising a z-filter media construction having a network of inlet and outlet flutes, inlet flutes being open at a region adjacent the inlet face and being closed at a region adjacent the outlet face; and, outlet flutes being closed adjacent the inlet face and being open adjacent the outlet face and oriented with flutes of each fluted sheet extending in a direction between the inlet and outlet flow faces;
(ii) a seal member secured to the media pack; and
(iii) a handle extending therefrom; the filter cartridge being cassette-free;
(d) operably installing the new filter cartridge into the housing by forming a seal between the seal member and the housing; (e) closing the cover to:
(i) orient the projection arrangement on the cover between the inlet flow face and the housing; and
(ii) orient the receiver of the cover so that the handle of the new filter cartridge is within the receiver.

13 . The method of claim 12 wherein the step of providing a new filter cartridge includes providing a filter cartridge in which the inlet flow face has a rectangular perimeter shape; and the outlet flow

Assignees

• Donaldson Co Inc

Inventors

• Dewit Johan G
• Craessaerts Johnny
• Hoeniges Andreas

Classifications

• B01D46/0005 Primary

  Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence) · CPC title

• B01D46/62

  connected in series · CPC title

• B01D46/88 Primary

  Replacing filter elements · CPC title

• B01D46/4227

  Manipulating filters or filter elements, e.g. handles or extracting tools · CPC title

• B01D46/527

  in wound arrangement · CPC title