Patent ID: 11951432
Assignee: CONSAIR OY
Field: Chemical engineering (Chemistry)
Classification: CPC B | IPC B

Claim 0:
1. A replaceable filter element for a filtering device for filtering dust from air flow, the replaceable filter element comprising:
a housing having a first side and a second side, the first side configured to take in the air flow in a first direction and the second side configured to exhaust the air flow;
filter material arranged within said housing between the first side and the second side;
a suction chamber
arranged between the first side and the filter material,
configured to slow the air flow and to generate turbulence therein, and
comprising a bottom connecting the first side and the second side, the bottom oriented approximately perpendicular to the first side and the second side and configured to receive dust descending in a second direction that is different from the first direction;

at least one hole in said first side; and, wherein the area within the circumference of the filter material facing said first side of said housing is larger than the area of said at least one hole;
wherein said at least one hole in said first side is delimited by a cutout forming a flap covering said at least one hole; and
wherein slow air flow facilitates accumulation of dust on an incident surface of the filter material and the air turbulence facilitates spreading of dust within the suction chamber.