Filter system and filter element
AssigneeMann+Hummel GmbH
InventorsRobert HASENFRATZ, Pascal NEEF, Klaus-Dieter RUHLAND, Peter SAWATZKY, Marco SCHILLING
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Abstract
A filter system and a filter element of the filter system having a recess arranged on an outside of the filter element and at least one coding element arranged on a circumference of an end cap of the filter element. At least one coding pin is arranged on an inside of a bottom housing part for cooperating with the recess when the filter element is inserted in the housing. The bottom housing part includes a circular shield having a slot extending in the axial direction, wherein the slot is configured to receive the coding element of the filter element when the filter element is inserted in the housing.
Claims14
A filter system comprising a housing with a fluid inlet and a fluid outlet and a filter element accommodated in the housing along an axial direction for filtering a fluid flowing from the fluid inlet to the fluid outlet,
- the filter element comprising a filter bellows with a first end face and along the axial direction an opposite second end face, wherein at least one of the first end face and the second end face comprises an end cap,
- wherein a recess is arranged on an outside of the end cap, the recess extending in the axial direction,
- wherein at least one coding element is arranged on a circumference of the end cap,
- wherein at least one coding pin is arranged on an inside of a bottom housing part of the housing, the coding pin configured for cooperating with the recess when the filter element is inserted in the housing,
- wherein the bottom housing part comprises a circular shield in a coaxial arrangement with the filter element, the shield comprising a slot extending in the axial direction, wherein the slot is configured to receive the coding element of the filter element when the filter element is inserted in the housing,
- wherein, with respect to the axial direction, a first angle between an angular position of the coding element of the filter element and an angular position of the recess matches a second angle between an angular position of the slot of the bottom housing part and an angular position of the coding pin.
A filter element for a filter system comprising a filter bellows with a first end face and along an axial direction an opposite second end face, wherein at least one of the first end face and the second end face comprises an end cap,
- wherein at least one recess is arranged on an outside of the end cap, the recess extending in the axial direction for cooperating with a coding pin of a housing of the filter system,
- wherein at least one coding element is arranged at an outer circumference of the end cap for cooperating with a slot of a circular shield of a bottom housing part of the filter system, wherein the coding element is arranged with a spacing along the axial direction from the at least one of the first end face and the second end face, and wherein, with respect to the axial direction, a first angle between an angular position of the coding element of the filter element and an angular position of the recess matches a second angle between an angular position of the slot of the bottom housing part and an angular position of a coding pin of the filter system.
Dependencies are inferred from the claim text.