Hollow filter element, grip device of a hollow filter element, and filter device with at least one hollow filter element

Patent metadata

Field	Value
Publication number	US-10159923-B2
Application number	US-201615007668-A
Country	US
Kind code	B2
Filing date	Jan 27, 2016
Priority date	Jan 30, 2015
Publication date	Dec 25, 2018
Grant date	Dec 25, 2018

Abstract

A hollow filter element of a filter device for filtering air is arranged exchangeably in a filter housing of the filter device so that at least one air inlet of the filter housing for air to be filtered is separated from at least one air outlet of the filter housing for filtered air. The hollow filter element is provided with at least one filter bellows made of at least one filter medium surrounding at least one element interior circumferentially relative to an element axis of the hollow filter element. At least one grip device is arranged at an end face of the at least one filter bellows that is not provided for passage of air in operation of the hollow filter element. The hollow filter element can be gripped by the at least one grip device at least for installation into or removal from the filter housing.

First claim

What is claimed is:

1. A hollow filter element of a filter device for filtering air, wherein
the hollow filter element is configured to be arranged exchangeably in a filter housing of the filter device so that at least one air inlet of the filter housing for air to be filtered is separated from at least one air outlet of the filter housing for filtered air;
the hollow filter element comprising:
at least one filter bellows including at least one filter medium surrounding circumferentially at least one element interior relative to an element axis of the hollow filter element;
a ring-shaped annular end disk seal-tightly connected to filter medium at an axial end face of the at least one filter bellows, the ring-shaped annular end disk having a central through-opening;
a grip device, comprising:
a holding cup comprising:
a recessed cup section comprising:
a ring-shaped tubular circumferential wall arranged in the central through-opening of the ring-shaped annular end disk, the ring-shaped circumferential wall projecting axially into the element interior in a radial interior of the filter medium;
a bottom wall arranged on and closing a first axial end of the ring-shaped tubular circumferential wall, the bottom wall arranged in the element interior within the radial interior of the filter medium;

a fastening member formed on a second axial end of the ring-shaped tubular circumferential wall, the fastening member projecting radially outwardly away from the ring-shaped tubular circumferential wall;
wherein the fastening member is embedded into material forming the ring-shaped annular end disk, securing the grip device to the ring-shaped annular end disk;

a hand grip rotatably fastened to an interior of the holding cup, the hand grip adjustable:
from a rest position where the hand grip is arranged within the interior of the holding cup;
to a grip position where the hand grip is rotated axially outwardly away from the disc-shaped bottom wall such that the hollow filter element can be gripped by the hand grip at least for installation into or removal from the filter housing.

2. The hollow filter element according to claim 1 , wherein
at least a part of the grip device closes off the element interior.

3. The hollow filter element according to claim 1 , wherein
the grip device comprises at least one releasable locking device arranged on the ring-shaped tubular circumferential wall or the bottom wall of the grip device, the at least one releasable locking device releasably locking the hand grip in the rest position in the interior of the holding cup.

4. The hollow filter element according to claim 3 , wherein
the hand grip comprises:
a grip section configured to be gripped by a hand;
at least one holding leg having a first end secured to and projecting outwardly from the grip section;
a locking nose formed on a second end of the at least one holding leg;
wherein the locking nose has a slanted guiding surface;

wherein the holding cup comprises:
at least one holding member arranged on ring-shaped tubular circumferential wall or the bottom wall of the holding cup, the at least one holding member rotatable fastening the hand grip to the holding cup;
wherein the at least one holding member has a locking receptacle receiving the locking nose for rotatably mounting the hand grip.

5. The hollow filter element according to claim 4 , wherein
the locking nose of the least one holding leg has a slanted guiding surface which contacts the at least one holding member during installation of the hand grip, the slanted guiding surface enabling a quick connection of the hand grip into the locking receptacle of the at least one holding member.

6. The hollow filter element according to claim 1 , wherein
in the rest position, the hand grip is arranged within and recessed within the interior of the holding cup.

7. The hollow filter element according to claim 1 , wherein
the hand grip comprises
at least one grip connecting element,

wherein at least one corresponding connecting element is arranged on the ring-shaped tubular circumferential wall or on the bottom wall of the holding cup
wherein the at least one grip connecting element and the at least one corresponding connecting element are moveably connected to each other and form a releasable quick-connect device.

8. The hollow filter element according to claim 7 , wherein
the at least one grip connecting element is a locking projection or a locking receptacle and wherein the at least one corresponding connecting element is a locking receptacle matching the locking projection of the at least one grip element or a locking projection matching the locking receptacle of the at least one grip element.

9. The hollow filter element according to claim 7 , wherein
the releasable quick-connect device is a locking connection; a snap-on connection; a clamping connection; or a plug connection.

10. The hollow filter element according to claim 1 , wherein
the fastening member of the holding cup is a fastening ring circumferentially surrounding the ring-shaped tubular circumferential wall of the holding cup;
wherein the fastening member includes a plurality of radially extending ribs, the ribs spaced circumferentially apart to receive material of the ring-shaped annular end disk there between.

11. A filter device for filtration of air, the filter device comprising:
a filter housing including at least one air inlet for air to be filtered and at least one air outlet for filtered air;
at least one hollow filter element according to claim 1 exchangeably arranged in the filter housing such that the at least one hollow filter element separates the at least one air inlet from the at least one air outlet.

12. A grip device of a hollow filter element of a filter device for filtering air, wherein
the hollow filter element is configured to be arranged exchangeably in a filter housing of the filter device so that at least one air inlet of the filter housing for air to be filtered is separated from at least one air outlet of the filter housing for filtered air,
wherein the hollow filter element includes at least one filter bellows comprising at least one filter medium surrounding circumferentially at least one element interior relative to an element axis of the hollow filter element,
wherein the grip device is configured such that the hollow filter element can be gripped by the grip device at least for installation of the hollow filter element into or removal of the hollow filter element from the filter housing,
wherein the grip device is configured to be arranged at an end face of the at least one filter bellows that is not provided for passage of air in operation of the hollow filter element,
wherein the grip device, comprises:
a holding cup comprising:
a recessed cup section comprising:
a ring-shaped tubular circumferential wall;
a bottom wall arranged on and closing a first axial end of the ring-shaped tubular circumferential wall;

a fastening member formed on a second axial end of the ring-shaped tubular circumferential wall, the fastening member projecting radially outwardly away from the ring-shaped tubular circumferential wall,
wherein the fastening member is configured to be embedded into material forming a ring-shaped annular end disk of the hollow filter element;

a hand grip rotatably fastened to an interior of the holding cup, the hand grip adjustable:
from a rest position where the hand grip is arranged within the interior of the holding cup;
to a grip position where the hand grip is rotated axially outwardly away from the disc-shaped bottom wall such that the hollow filter element can be gripped

Assignees

• Mann & Hummel Gmbh

Inventors

• Ruhland Klaus-Dieter
• Kaufmann Michael

Classifications

• B01D46/521

  using folded, pleated material · CPC title

• B01D46/4227

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

• B01D46/2414

  End caps including additional functions or special forms · CPC title

• B01D46/0005 Primary

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