Filtering device, filtering element and maintenance process of a filtering device

A filtering device (1), comprising:

• a housing body (6) which encloses a cavity within the housing body, the housing body including
• a filtered air outlet (8);
• a tubular filtering element (24) installed within the cavity and having
• an open axial end (26) arranged at and in flow communication with the filtered air outlet (8);
• and
• an axial end (27) closed by a cover (28);
• and
• an intake cover (7) which closes the cavity opposite the filtered air outlet (8);
• wherein the cover (28) includes
• at least a first tubular boss (55) projecting towards the intake cover (7);
• and
• at least a second tubular boss (57) complementary to the first tubular boss (55) and projecting towards the cover (28);
• wherein the first tubular boss (55) being slotted in the second tubular boss (57);
• wherein the intake cover (7) includes a cyclone pre-cleaner.

A tubular filtering element (24) having

• an axis extending through an interior of the filter element;
• an open axial end (26) opening into the interior;
• an opposite axial end (27) closed by a cover (28);
• wherein the cover (28) includes
• at least a first tubular boss (55) projecting perpendicularly to the cover (28);
• slide members (73) arranged on opposite circumferential edges of the cover (28), the slide members (73) projecting radially outwards away from a circumferential outer edges of the cover (28), wherein each slide member (73) comprises:
• a first rounded bulge projection (73A), formed on a first end of the slide member (73) and projecting radially outwardly away from the circumferential outer edges of the cover (28);
• a second rounded bulge projection, formed on an opposite second end of the slide member (73) and projecting radially outwardly away from the circumferential outer edges of the cover (28);
• and
• an indented depression (73C) formed in the slide member (73) between the first rounded bulge projection (73A) and the second rounded bulge projection (73B), the indented depression (73C) configured to receive and slide on a rail (74) provided on an interior side of a housing body (6) that is adapted to receive the tubular filtering element (24).

A method of maintaining a filtering device (1), comprising

• a housing body (6) which encloses a cavity within the housing body, the housing body including
• a filtered air outlet (8);
• a tubular filtering element (24) installed within the cavity and having
• an open axial end (26) arranged at and in flow communication with the filtered air outlet (8);
• and
• an axial end (27) closed by a cover (28);
• and
• an intake cover (7) which closes the cavity opposite the filtered air outlet (8);
• wherein the cover (28) includes
• at least a first tubular boss (55) projecting towards the intake cover (7);
• and
• at least a second tubular boss (57) complementary to the first tubular boss (55) and projecting towards the cover (28);
• wherein the first tubular boss (55) being slotted in the second tubular boss (57);
• wherein the second tubular boss (57) includes
• a bracket (58) arranged lying against the cover (28) such that the cover (28) and the intake cover (7) are held spaced apart from each other;
• wherein the first tubular boss (55) has a cavity (68) arranged along an axis of the first tubular boss;
• and
• wherein the central bracket (58) includes an exhaust hole (69);
• wherein the method comprises the steps:
• opening the intake cover (7);
• withdrawing the tubular filtering element (24) from the housing body;
• inserting a new tubular filter element into the cavity inside the housing body (6);
• closing the intake cover (7) so that the first tubular boss (55) of the cover (28) is slotted into the second tubular boss (57) of the intake cover (7) with the bracket (58) arranged lying against the cover (28) such that the cover (28) and the intake cover (7) are held spaced apart from each other.