Air cleaner

An air cleaner, comprising:

• a housing including a dust-side housing and a clean-side housing connected to one another to define an inner space;
• a filter element arranged within the inner space and dividing the inner space into a dust-side air chamber defined by the dust-side housing and a clean-side air chamber defined by the clean-side housing;
• an outlet pipe in fluid communication with the clean-side air chamber and projecting from the clean-side housing obliquely relative to the filter element;
• a plurality of ribs protruding from an inner surface of the clean-side housing toward the filter element, the plurality of ribs extending along the inner surface from a corner portion of the clean-side housing to a region adjacent to a surface of the clean-side housing via which the outlet pipe opens into the clean-side air chamber;
• wherein a distance between adjacent ribs of the plurality of ribs decreases in a direction toward the outlet pipe;
• and
• wherein a respective first end face of each of the plurality of ribs, which is disposed adjacent to the outlet pipe, protrudes from the inner surface of the clean-side housing in a direction away from the outlet pipe.

An air cleaner, comprising:

• a housing including a dust-side housing and a clean-side housing connected to one another to define an inner space;
• the clean-side housing including a bottom and a plurality of walls extending around an outer perimeter of the bottom, the bottom including a first bottom portion and a second bottom portion extending transversely to one another and connected to one another along a first corner portion;
• a filter element arranged within the inner space and dividing the inner space into a dust-side air chamber defined by the dust-side housing and a clean-side air chamber defined by the clean-side housing;
• an outlet pipe in fluid communication with the clean-side air chamber and projecting from the first bottom portion of the clean-side housing obliquely relative to the filter element;
• a plurality of ribs protruding from an inner surface of the second bottom portion of the clean-side housing toward the filter element, the plurality of ribs extending along the inner surface from a second corner portion of the clean-side housing to a region adjacent to the first corner portion;
• and
• wherein a distance between adjacent ribs of the plurality of ribs decreases in a direction toward the outlet pipe.