公开(公告)号：US20240269589A1

公开(公告)日：2024-08-15

申请号：US18648670

申请日：2024-04-29

Applicant: MANN+HUMMEL GmbH

Inventor： Daniel SCHMID ,  Kevin KOHN

IPC: B01D46/00 ,  B01D46/42 ,  B01D46/52

CPC classification number: B01D46/0002 ,  B01D46/4236 ,  B01D46/52

Abstract: A filter system has a filter housing enclosing an interior space. An exchangeable filter element and a resonator structure are arranged in the interior space. The resonator structure has resonator housing elements forming a closed resonator housing enclosing a cavity in an intended state. A partition divides the cavity into a first and a second chamber. The partition has a passage through which the first and second chambers are acoustically coupled. The filter housing has a housing part providing one of the resonator housing elements. The filter element is provided with another one of the resonator housing elements. The filter element has a filter bellows and a cutout penetrating the filter bellows from an inflow side to an outflow side of the filter bellows. The cutout is a resonator housing receptacle. At least one of the resonator housing elements is arranged in the cutout.

公开(公告)号：US20240075418A1

公开(公告)日：2024-03-07

申请号：US18506601

申请日：2023-11-10

Applicant: MANN+HUMMEL GmbH

Inventor： Daniel SCHMID ,  Kevin KOHN ,  Sven EPLI

IPC: B01D46/42 ,  B01D46/24 ,  F02M35/02 ,  F02M35/024 ,  F02M35/12 ,  F02M35/14

CPC classification number: B01D46/4236 ,  B01D46/2414 ,  F02M35/0201 ,  F02M35/0216 ,  F02M35/02416 ,  F02M35/02483 ,  F02M35/1255 ,  F02M35/14 ,  B01D2265/028 ,  B01D2271/02

Abstract: A filter system for filtering a fluid has a filter housing with housing top part and housing bottom part, wherein the housing top and bottom parts extend along a housing axis. A filter pack arranged in the filter housing separates fluid-tightly a clean fluid side and a raw fluid side from each other. The filter pack has a filter element with a hollow cylinder-type filter bellows arranged about a longitudinal axis of the filter element. The filter element has a first substantially closed end face and a first end disk arranged thereat, wherein the first end disk is positioned opposite a second end disk of the filter element. The second end disk has a fluid passage for filtered fluid. A resonator with an end closed by a bottom is arranged inside the filter pack such that the bottom is oriented toward the first end disk of the filter element.

公开(公告)号：US20240269595A1

公开(公告)日：2024-08-15

申请号：US18648682

申请日：2024-04-29

Applicant: MANN+HUMMEL GmbH

Inventor： Daniel SCHMID ,  Kevin KOHN

IPC: B01D46/42 ,  B01D46/00 ,  B01D46/52

CPC classification number: B01D46/4236 ,  B01D46/0002 ,  B01D46/521 ,  B01D2265/025

Abstract: A filter element has a holder arrangement with a filter bellows and a partition element arranged at different regions of the holder arrangement. The partition element extends between first and second chambers of a resonator structure when installed in a filter system and has a passage acoustically coupling the two chambers. Such a filter element is exchangeably arranged in the filter housing of the filter system which has a main inlet, a main outlet, and an auxiliary connection outlet. The filter bellows is arranged in flow direction between the main inlet and the two outlets. The partition element is arranged between the two chambers of the resonator structure for noise damping of the auxiliary connection outlet. Its passage acoustically couples the two chambers. The partition element projects into an auxiliary connection resonator region of the filter housing and has end regions contacting walls delimiting the auxiliary connection resonator region.

公开(公告)号：US20240075419A1

公开(公告)日：2024-03-07

申请号：US18506613

申请日：2023-11-10

Applicant: MANN+HUMMEL GmbH

Inventor： Daniel SCHMID ,  Kevin KOHN ,  Sven EPLI

IPC: B01D46/42 ,  B01D46/00 ,  B01D46/24

CPC classification number: B01D46/4236 ,  B01D46/0005 ,  B01D46/2414 ,  B01D2271/027

Abstract: A filter element for a filter system has a hollow cylinder-type filter bellows with an end face and a substantially closed bottom provided thereat. At least one resonator structure provided at the bottom provides noise attenuation of a flowing fluid. The resonator structure has two or more grooves arranged at an outer side of the bottom and separated from each other by a partition. At least one of the grooves is connected in fluid communication through an opening to an interior of the filter element. The resonator structure, when installed in a filter housing of the filter system as intended, seals tightly relative to a complementary resonator structure of the filter housing. The grooves are connected in fluid communication through connection openings arranged in the resonator structure of the filter element and/or the complementary resonator structure of the filter housing. A filter system with such a filter element is provided.

公开(公告)号：US20240042362A1

公开(公告)日：2024-02-08

申请号：US18366198

申请日：2023-08-07

Applicant: MANN+HUMMEL GmbH

Inventor： Pascal NEEF ,  Kevin KOHN ,  Jan JEDLICKA

IPC: B01D46/00

CPC classification number: B01D46/0005 ,  B01D2265/04

Abstract: A secondary element for a filter system has first and second ends oppositely positioned to each other in longitudinal direction. The first end is closed by a closed end disk. The closed end disk has a first connection device for interacting with a complementary second connection device of a central tube of the filter system and for fixing the secondary element on the central tube. The first connection device has lock elements with radially inwardly oriented lock hooks distributed circumferentially on the closed end disk. A filter medium surrounds the lock elements. The lock elements include two directly neighboring lock elements having a distance relative to each other along the circumference of the closed end disk that is larger than a circumferential measurement of a radially outwardly oriented deflection element arranged at a collar of the central tube. A filter system with such a secondary element is provided.