| 摘要 |
An embodiment of the invention provides a filter cartridge (200) comprising at least: a first and a second tubular- shaped filter wall (215, 250), which are coaxial and reciprocally superposed in the direction of the common axis (X); a first and a second intermediate support plate (225, 265), which are singly constrained to an end of the first and the second filter walls (215, 250) respectively, such that the intermediate support plates (225, 265) are axially interposed between the first and the second filter walls; a first and a second external support plate (220, 270), which are singly constrained to an opposite end of the first and the second filter walls (215, 265) respectively, the first external support plate (220) being provided with at least a central opening (235) and at least an offset opening (240) which is off-axis with respect to the central opening (235), both of which openings lead to the internal cavity of the first filter wall (215); and a hollow cylindrical shank (275), associated to the second intermediate support plate (265), communicating with an internal cavity of the second filter wall (250) and inserted in an internal cavity of the first filter wall (215), via a through-hole (245) in the first intermediate support plate (225), such as to subdivide an internal volume of the first filter wall (215) into two separate chambers, of which a chamber (280) communicating with the central opening (235) and a chamber communicating with the offset opening (240) of the first external support plate (220). The first and the second filter walls (215, 250) are joined together by at least a fixing screw (295) which is coupled with the first external support plate (220) and with the cylindrical shank (275). |
