Abstract

A static mixer for exhaust gas ducts of internal combustion engines includes an elongated hollow metal body having a shape which, relative to a symmetry axis, substantially corresponds to a solid of revolution defining at its inside a cavity having opposite bases, at least one of which has an axial opening, and a closed lateral wall connecting the opposite bases and having at least one radial opening over which a concave blade is arranged extending radially outward from a portion of the peripheral edge of the radial opening and surrounding a portion of the radial opening so as to define, in a first angular direction relative to the symmetry axis, a corresponding concave screen or spoon and, in a second, opposite direction, a mouth intended for the passage of gases and located substantially in front of the concave screen or spoon.

IPC Classes  ?

• F01N 3/28 - Construction of catalytic reactors
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion

Abstract

Filter cartridge (11, 211) for an air filter for internal combustion engines, comprising a first closed base (13, 213) and a second open base (15, 215) opposite to said first closed base (13, 213) and having an opening (15a, 215a) for the exit of filtered air, a filter element (17, 217) extending radially between said first closed base (13, 213) and said second open base (15, 215) and defining a cavity (19, 219) for the passage of an airflow (F), wherein said cartridge (11, 211) comprises an air conveyor (23, 223) arranged proximal to the closed base (13, 213) and adapted to direct the airflow (F) towards the second open base (15, 215). The invention further relates to an air filter assembly (100) comprising a housing (101) arranged to house the cartridge (11, 211) and a projection (107) cooperating with said cartridge (11, 211).

IPC Classes  ?

• B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
• B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies

Abstract

Air filter (11) for I.C. engines, comprising a housing (13), provided with a removable lid (15), in which a compartment (21) is provided receiving a main filter element (17) which is replaceable and provided with a sealing gasket (23) adapted to be interposed between the housing (13) and the lid (15), characterized in that the sealing gasket (23) comprises at least one centering seat or projection (31) for receiving a corresponding centering projection or seat (33) provided on the lid (15) or on the housing (13) when the main filter element (17) is located within the housing (13) and the housing (13) is closed by the lid (15).

IPC Classes  ?

• F02M 35/02 - Air cleaners
• F02M 35/024 - Air cleaners using filters, e.g. moistened

Abstract

An air filter (11) for I.C. engines, comprising a housing (13), provided with a removable lid (15), in which a compartment (21) is provided, in which a main filter element (17) and a secondary filter element (19) are received, said filter elements (17, 19) being individually replaceable, wherein the secondary filter element (19) defines a corresponding pocket (23) in which the main filter element (17) is received.

IPC Classes  ?

• F02M 35/02 - Air cleaners
• F02M 35/024 - Air cleaners using filters, e.g. moistened

Abstract

Tank (11) adapted to contain a fluid and having a heater, the tank comprising a wall (13) made of a plastic material and defining therein a tank chamber (15), and an assembly (17) for heating the fluid contained in the tank, said assembly (17) being equipped with a first unit (19), or heating unit, which comprises a duct (23) for conveying a heating fluid, said duct being located within the tank chamber (15) and being provided with an inlet opening (25) and an outlet opening (27) for said heating fluid, said openings being located outside the tank (11), wherein said heating unit (17) is incorporated in the tank (11), i.e. it is immovably associated with the tank so that the tank and the heating duct substantially form a single piece.

IPC Classes  ?

• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F01N 13/16 - Selection of particular materials
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly

Abstract

Tank (11) for containing a fluid, comprising a wall (13) made of a plastic material and defining therein a tank chamber (15), and an assembly (17) for drawing the fluid contained in the tank, said assembly (17) being equipped with a second unit (21), or drawing unit, which comprises a duct (29) provided with an inlet opening (31) and an outlet opening (33) located inside and outside the tank (11), respectively, wherein the drawing unit (21) comprises an extension (21a) arranged inside the tank (11) and defining therein an intake chamber (21b) communicating with the outlet opening (33) and communicating with the chamber (15) of the tank (11) through a filter (57).

IPC Classes  ?

• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F01N 13/16 - Selection of particular materials
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly

Abstract

Tank (11) having a filler pipe (73), comprising a wall (13) made of a plastic material and defining therein a tank chamber (15), and an assembly (17) for heating and drawing the fluid contained in the tank, wherein said filler pipe (73) comprises a body made of a plastic material in which an outer hollow portion (77) and an inner hollow portion (79) are defined, and wherein the outer hollow portion (77) comprises a cylindrical portion (77b) having a cross-sectional size larger than the cross-sectional size of the inner portion (79) and being provided with at least one side opening housing a filtering net (83a).

IPC Classes  ?

• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F01N 13/18 - Construction facilitating manufacture, assembly or disassembly
• F01N 13/16 - Selection of particular materials

Abstract

Panel-like air filter cartridge (11) for internal combustion engines comprising a pack of filtering material (13), for example pleated paper, in which an upstream side (15) is defined capable of receiving a flow of dirty air to be filtered, and a downstream side (17) capable of discharging filtered clean air which has passed through the cartridge, wherein the downstream side (17) is surrounded by a sealing gasket made of plastic material (19), said gasket defining a peripheral edge of the downstream side (17) and being capable of defining a corresponding tight seal with the surface of a housing in which the cartridge (11) is housed during use, and wherein the downstream side (17) is at least partially covered by a stiffening element (21), at least a portion of which is permeable to air, characterized in that the thickness 'dn' of said stiffening element (21) is non-constant.

IPC Classes  ?

• B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
• B01D 46/10 - Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
• B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material

Abstract

Static mixer (11) for exhaust gas ducts of internal combustion engines, comprising an elongated hollow metal body (13) having a shape which, relative to a symmetry axis (S), substantially corresponds to a solid of revolution defining at its inside a cavity (15), in which opposite bases (17,19) are defined, at least one of which is provided with an axial opening, and a closed lateral wall (23) is defined connected to the opposite bases (17,19) and having at least one radial opening (25) over which a concave blade (27) is arranged extending radially outward of the lateral wall (23) of the mixer body from a portion of the peripheral edge (29) of the radial opening (25) and surrounding a portion of the radial opening (25) so as to define, in a first angular direction relative to the symmetry axis, a corresponding concave screen or spoon (31) and, in a second, opposite direction, a mouth (33) intended for the passage of gases and located substantially in front of the concave screen or spoon (31).

IPC Classes  ?

• B01F 3/04 - Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
• B01F 5/04 - Injector mixers
• B01F 5/06 - Mixers in which the components are pressed together through slits, orifices, or screens
• F01N 3/28 - Construction of catalytic reactors
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion

Abstract

Unit (11) for feeding a reducing solution from the tank to the exhaust duct of an endothermic engine is provided. The unit comprises a supporting head (13) arranged for being associated to an aperture provided in a reducing solution tank and a heating device (15) for heating the reducing solution contained in the tank. The heating device (15) extends from the supporting head (13) and is provided with a duct (17) for a heating fluid. The duct (17) is defined by a side wall (31) which, when the unit (11) is in use, is internally in contact with the heating fluid passing through the duct (17) and externally in contact with the reducing solution present in the tank. At least one portion of the wall (31) of the duct (17) is non-smooth inside and/or outside the duct.

IPC Classes  ?

• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F28D 1/047 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
• F28F 1/42 - Tubular elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
• F28D 7/02 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
• F28F 1/08 - Tubular elements crimped or corrugated in longitudinal section
• F28D 1/02 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid
• F28F 9/02 - Header boxesEnd plates
• B60K 13/04 - Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning exhaust
• F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
• B60K 15/01 - Arrangement of fuel conduits
• B60K 15/03 - Fuel tanks

Abstract

1. Panel-like air filter cartridge (11) for I.C. motors, comprising a pack (13) of filtering material having a prismatic shape in which an upstream face (15) and a downstream face (17) are defined for inletting the air to be purified and for outletting the air that has been purified, respectively, a polyurethane peripheral gasket (19) defining a corresponding first frame (21) surrounding the downstream face (17), and a second frame (23) surrounding a portion (27) of the cartridge (11) free from filtering material, the first frame (21) and the second frame (23) being coplanar and having a side (25) in common, wherein said downstream face (17) is substantially flat and said upstream face (15) comprises a first flat portion (29) parallel to the downstream face (17) and a second flat portion (31) oblique relative to the downstream face (17) and wherein the area of the second oblique portion (31) of the upstream face (15) is at least equal to the area of the first portion (29) of the upstream face (15).

IPC Classes  ?

• B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
• B01D 46/10 - Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
• B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material
• B60L 1/00 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles
• H02P 21/00 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation

Abstract

The present invention relates to a filtering cartridge (1), which can be used particularly in an IC engine for filtering the suction air of the engine, as well as to a filtering device (21) comprising such a filtering cartridge. According to the invention, said filtering cartridge (1) comprises a peripheral sealing gasket (7), which in cross-section is substantially flat on the side oriented towards the outlet pleated face for the filtered air (3b) and has a convex profile towards the inlet pleated face for the air to be filtered (3a) of said cartridge; correspondingly, the filtering device (21) according to the invention comprises a casing (23) in which there is provided a seat for said peripheral gasket (7), said seat having a concave profile in cross-section. This configuration - along with the fact that the peripheral gasket (7) is not arranged in parallel to the pleated faces (3a,3b) of the filtering cartridge (1), but inclined with respect thereto - allows to optimize tightness efficiency between said filtering cartridge and said casing and, consequently, to improve filtering efficiency, while maintaining limited space requirements.

IPC Classes  ?

• F02M 35/024 - Air cleaners using filters, e.g. moistened
• B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material

Abstract

Unit for reduction of exhaust gases for IC engine, comprising cylindrical housing having gas inlet opening, gas outlet opening and injector for reducing substance; helicoid coaxially arranged inside the housing; channel aimed at conveying the exhaust gases and having substantially quadrangular cross-section, said channel helicoidally developing inside the unit; wherein the helix generated by the intersection between the inner surface of the housing and the helicoid has an inclination angle relative to the planes perpendicular to the generatrices of the cylindrical housing ranging from 0° to 30°, the unit comprising a coaxial sleeve for stiffening and stabilization, located at the center of the helicoid, passing axially throughout the helicoid, axially extending over a length at least equal to the axial length of the helicoid, said sleeve cooperating with the inner surface of the housing and the opposite surfaces of the helicoid in order to define the helicoidal channel.

IPC Classes  ?

• F01N 3/28 - Construction of catalytic reactors
• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• B01F 5/06 - Mixers in which the components are pressed together through slits, orifices, or screens

Abstract

Dynamic mixer (11) with movable vanes (19) for exhaust gases of I.C. engines, comprising a stationary annular part (13) adapted to be connected to an exhaust gases duct of I.C. engines and a movable part (17) provided with a plurality of vanes (19), characterized in that the vanes (19) are disengaged from the stationary part (13) and have their roots associated to the movable part (17) so that the relative movement between the two parts (13,17) of the mixer causes a variation in the geometry of the vanes (19) with respect to the flow of exhaust gases that hits the mixer, while maintaining substantially constant form of the vanes.

IPC Classes  ?

• B01F 5/06 - Mixers in which the components are pressed together through slits, orifices, or screens
• F01N 3/28 - Construction of catalytic reactors

Abstract

Unit (11) for feeding a reducing solution from the tank to the exhaust duct of an endothermic engine, comprising a supporting head (13) arranged for being associated to an aperture provided in a reducing solution tank and a heating device (15) for heating the reducing solution contained in the tank, the heating device (15) extending from the supporting head (13) and being provided with a duct (17) for a heating fluid, said duct (17) being defined by a side wall (31) which, when the unit (11) is in use, is internally in contact with the heating fluid passing through the duct (17) and externally in contact with the reducing solution present in the tank, wherein at least one portion of the wall (31) of the duct (17) is non-smooth inside and/or outside the duct.

IPC Classes  ?

• F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
• F28D 7/00 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall

Abstract

Multi-layered filter element (11) comprising at least two layers (13,15) of filtering material made of paper pleated in an accordion-like way along parallel bending lines, so as to define, along said bending lines, a series of ridges (13a, 15a) alternated with grooves (13b, 15b), the at least two layers (13,15) being undetachably held together in the filter element, except when the filter element itself becomes destroyed, by sealing gaskets (23,25) made of plastic material in which the paper of the layers (13,15) is partially incorporated, adjacent layers (13,15) of filtering material being arranged close to each other and the ridges (13a, 15a) of different layers being mutually parallel, wherein between adjacent layers (13,15) there are provided spacers (17) arranged on the paper ridges (13a, 15a) perpendicularly thereto, said spacers preventing the ridges (13a, 15a) of a layer (13,15) from penetrating into the grooves (13b, 15b) of the adjacent layer (13,15) and vice versa; the invention further relates to a method for making the filter element.

IPC Classes  ?

• F02M 35/024 - Air cleaners using filters, e.g. moistened

Abstract

Static mixer for the treatment of exhaust gases, including an annular support portion and a plurality of substantially coplanar radial vanes that are arranged radially with their rear portions or bases associated with the support portion and the front portions or radial tips converging towards the center of the mixer, wherein the body of the vanes includes at least three lines of bending, which define respective portions arranged on non parallel planes and defining corresponding impact surfaces for the exhaust gases.

IPC Classes  ?

• B61F 5/06 - Bolster supports or mountings incorporating metal springs
• F01N 3/28 - Construction of catalytic reactors
• B01F 5/06 - Mixers in which the components are pressed together through slits, orifices, or screens

Abstract

Air filter cartridge (11;111) for I.C. motors, comprising a body (13) in which there are defined, in the flow direction of the air to be filtered, an upstream face (15) and a downstream face (17) of the cartridge, wherein said body (13) comprises at least one pair of panels (19a, 19b; 19a', 19b', 19a", 19b") of filtering material provided in a substantially V-shaped arrangement, so that at least one channel (21) for the passage of air is define between the panels of said at least one pair of panels, wherein the filtering material of at least one of the panels comprises a corrugated sheet (23) of filtering material, wherein, on opposite surfaces thereof, a succession of corrugations 25 and grooves 27 are defined. The invention further concerns the method of manufacturing the cartridge as well as a filter equipped with the cartridge.

IPC Classes  ?

• B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
• B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material
• B01D 46/12 - Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces in multiple arrangements

Abstract

A panel-like air filter cartridge (11) with variable depth for internal combustion engines, the cartridge being equipped with a high-efficiency integrated channelling member and comprising a filter section (13), made of pleated paper and having a substantially quadrilateral shape, and an air channelling section (17), also with a substantially quadrilateral shape, arranged adjacent to the filter section (13) along one side (25) of the filter section (13) parallel to the direction of the pleats (15) in the paper, wherein, in at least one portion (27) of the filter section (13), the depth of the pleats (15) progressively increases towards the channelling section (17), and wherein the channelling section (17) has the shape of a hopper (33) provided with an air inlet opening (31), extending in a plane common to the filter section (13) and the channelling section (17), and an air outlet mouth (35) located at the bottom of the hopper (33), along a plane substantially parallel to the walls of the pleats (15) in the paper.

IPC Classes  ?

• B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
• B01D 46/10 - Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
• B01D 46/52 - Particle separators, e.g. dust precipitators, using filters embodying folded material
• F02M 35/024 - Air cleaners using filters, e.g. moistened

Abstract

Static mixer (11) for the treatment of exhaust gases, comprising an annular support portion (13) and a plurality of substantially coplanar radial vanes (15) that are arranged radially with their rear portions or bases (17) associated with said support portion (13) and the front portions or radial tips (19a) converging towards the centre ("G") of the mixer, wherein the body of the vanes (15) comprises at least three lines of bending, which define respective portions (15a,15b,15c) arranged on non parallel planes and defining corresponding impact surfaces (A,B,C) for the exhaust gases.

IPC Classes  ?

• F01N 3/28 - Construction of catalytic reactors