A filter for internal combustion engines, includes a rigid external casing provided with at least an inlet for a fluid to be filtered and an outlet for the fluid when filtered, and a filter cartridge located internally of the external casing, which includes a plurality of tubular filter walls arrang
A filter for internal combustion engines, includes a rigid external casing provided with at least an inlet for a fluid to be filtered and an outlet for the fluid when filtered, and a filter cartridge located internally of the external casing, which includes a plurality of tubular filter walls arranged parallel to one another which are destined to be crossed by the fluid flowing from the inlet towards the outlet of the external casing; the external casing being conformed such as to delimit a pouch a transversal section of which, performed along a perpendicular plane to axes of the tubular filter walls, exhibits a prevalent line of development and a small width with respect to the prevalent line of development; the tubular filter walls being arranged internally of the pouch, side by side with one another, forming a single row which follows the prevalent line of development of the pouch.
대표청구항▼
1. An internal combustion engine filter, comprising an external casing (2) provided with at least an inlet (21) for a fluid to be filtered and an outlet (22) for the fluid when filtered, and a removable filter cartridge (3) located internally of the external casing (2), wherein the removable filter
1. An internal combustion engine filter, comprising an external casing (2) provided with at least an inlet (21) for a fluid to be filtered and an outlet (22) for the fluid when filtered, and a removable filter cartridge (3) located internally of the external casing (2), wherein the removable filter cartridge (3) comprises a support flange (31, 31′, 32′) and a plurality of tubular filter walls (30, 30′) arranged parallel to one another which are destined to be crossed by the fluid flowing from the inlet (21) towards the outlet (22) of the external casing (2), wherein each tubular filter wall (30, 30′) is made such as to exhibit at least an open end, wherein the open end of each tubular filter wall (30, 30′) is fixed to the support flange (31, 31′, 32′) which is configured to connect the tubular filter walls (30, 30′) to one another, and is provided with at least a through-hole (33) aligned with a cavity of the tubular filter wall (30, 30′), and wherein the external casing (2) further comprises an openable cover (23) of an opening through which the removable filter cartridge can be inserted or extracted, wherein the external casing (2) is conformed such as to delimit a pouch (24) a transversal section of which, performed along a perpendicular plane to axes of the tubular filter walls (30, 30′), exhibits a prevalent line of development (A) and a small width (B) with respect to the prevalent line of development (A), the tubular filter walls (30, 30′) are arranged internally of the pouch (24), side by side with one another, forming a single row which follows the prevalent line of development (A) of the pouch (24), such that the width (B) of the pouch (24) is occupied by a single tubular filter wall (30), wherein the support flange (31, 31′, 32′) entirely occupies a transversal section of the external casing (2), such as to sub-divide the internal volume thereof in two distinct chambers, of which a first chamber communicates with the inlet (21) and a second chamber communicates with the outlet (22). 2. The filter of claim 1, wherein the prevalent line of the development (A) is selected from a group constituted by: a curved line and a split line. 3. The filter of claim 1, wherein each tubular filter wall (30, 30′) has a diameter which is not greater than 20% of a length thereof. 4. The filter of claim 1, wherein each tubular filter wall (30) is made such that an opposite end thereof is also open, the opposite end being closed by a second support flange (32, 31′, 32′) configured to connect the tubular filter walls (30) to one another. 5. The filter of claim 1, wherein each tubular filter wall (30′) is made such that the opposite end is closed. 6. The filter of claim 5, wherein the closed end is obtained by flattening and joining the lateral wall of the tubular filter wall (30′). 7. The filter of claim 1, wherein the removable filter cartridge (3) is predisposed such that the tubular filter walls (30, 30′) are configured to be crossed in parallel by the fluid. 8. The filter of claim 1, the removable filter cartridge (3) is predisposed such that each tubular filter wall (30, 30′) is configured to be crossed from the inside towards the outside. 9. The filter of claim 1, wherein the removable filter cartridge (3) is predisposed such that each tubular filter wall (30, 30′) is configured to be crossed from outside towards an inside thereof. 10. The filter of claim 1, wherein the removable filter cartridge (3) comprises a further prefiltering tubular wall (35, 35′) which externally envelops the plurality of tubular filtering walls (30, 30q), such as to be crossed by the fluid upstream of the tubular filter walls (30, 31′). 11. The filter of claim 10, wherein the prefiltering tubular wall (35′) is made such as to exhibit a closed end. 12. The filter of claim 11, wherein the closed end is obtained by flattening and joining an edge of the lateral wall of the prefiltering tubular wall (35′). 13. The filter of claim 10 wherein the walls (30, 30′, 35, 35′) of the removable filter cartridge (3) are made of a non-woven textile of polymer fibres. 14. The filter of claim 13, wherein the removable filter cartridge (3) is realised using a melt-blown process. 15. The filter of claim 1, wherein the prevalent line of the development (A) is a straight line. 16. The filter of claim 1, wherein the external casing (2) has a longitudinal axis (X) parallel to the tubular filter walls (30, 30′) and the opening for insertion or extraction of the removable filter cartridge (3) is in a lateral side of the external casing (2) with respect to the longitudinal axis (X). 17. The filter of claim 1, wherein the removable filter cartridge (3) comprises a first support flange (31′) and a second support flange (32′), both conformed such as to entirely occupy the transversal section of the external casing (2), such as to subdivide the internal volume of the external casing (2) into three distinct chambers, of which a first chamber (25) communicates with the inlet (21), a second chamber (26) communicates with the outlet (22) and an isolated intermediate chamber (27), containing the tubular filter walls (30), and wherein at least a first one of the tubular filter walls (30) has its open end fixed to the first support flange (31′), which is provided with a through-hole (33) aligned with the cavity of this first filter wall (30), and wherein at least a second one of the tubular filter walls (30) has its open end fixed to the second support flange (32′), which is provided with a through-hole (33) aligned with the cavity of this second filter wall (30), such that the first tubular filter wall (30) is configured to be crossed by the fluid in series with respect to the second tubular filtering walls (30) of the removable filter cartridge (3), the first tubular filter wall (30) having a greater porosity than second tubular filter wall, and being located upstream of the latter with respect to the flow direction.
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이 특허에 인용된 특허 (16)
Gogins, Mark A.; Weik, Thomas M., Air filter assembly for filtering an air stream to remove particulate matter entrained in the stream.
Cote Pierre L. (Hamilton CAX) Maurion Roger P. (Burlington CAX) Lipski Christopher J. (Burlington CAX) Pedersen Steven K. (Burlington CAX), Cartridge of hybrid frameless arrays of hollow fiber membranes and module containing an assembly of cartridges.
Lippert Thomas E. (Marysville PA) Ciliberti ; deceased David F. (late of Marysville PA by Paula Ciliberti ; executrix), Compact ceramic tube filter array high-temperature gas filtration.
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Newby Richard A. (Pittsburgh PA) Ciliberti ; deceased David F. (late Murrysville PA by Paula Ciliberti ; executrix) Lippert Thomas E. (Murrysville PA), Fluidized bed system for removing particulate contaminants from a gaseous stream.
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