FILTER CARTRIDGE (OPTIONS) AND AIR FILTER ASSEMBLY (OPTIONS)

摘要

1. An air filter assembly comprising: (a) a casing forming an internal space provided with inlet and outlet passages for air flow; (1) wherein the casing has a hatch through which access for maintenance is provided, with a removable access cover installed over this hatch; and (2) there is a protrusion on the access cover extending from it into the inner space of the casing; (b) a filter cartridge support extending towards the access cover from the end of the casing opposite the access cover; (1) moreover, the filter cartridge support has a first end protruding in the direction of the access cover, on which there is a receiving chute surrounding a central protrusion extending towards the access cover; and (2) the support of the filter cartridge has a second end opposite to the first end and located near the outlet passage of the casing for air flow; and (c) a main filter cartridge installed in the inner space of the casing with the possibility of its extraction and passing over the support of the filter cartridge, the main filter cartridge containing: (1) filter material; (2) an exhaust passage for air flow; and (3) a removable seal in the outlet passage of the main filter cartridge, providing a seal relative to the casing, the seal of the main filter cartridge being directed radially relative to an axis passing through the outlet passage for air flow; and (4) the main filter cartridge contains an element included in the receiving chute on the support of the filter cartridge. 2. The air filter assembly according to claim 1, wherein the support of the filter cartridge has a