Filter cartridge with operating device

Abstract

A filter element (10) of a fluid filter assembly (1) for a vehicle, wherein the fluid filter assembly (1) extends along a main axis (X-X), and the filter assembly includes a base assembly (100) and a coupling device (2). The coupling device (2) includes a first coupling member (20) contained in the filter element (10) and a second coupling member (200) contained in the base assembly (100). The filter element (10) extends along a filter element axis (Z-Z) and includes a coupling plane (15) at its axial end. The first coupling member (20) is formed on the coupling plane (15) and includes at least two toothed elements (21) diametrically relative to the filter element axis (Z-Z). Each toothed element (21) includes a first rod (22) and a head (23). Each toothed element (21) elastically yields in the radial direction, and the first coupling member (20) includes an operating device (24) for each toothed element (21).

Description

Technical Field

[0001] This invention relates to a filter element of a fluid filter assembly. Furthermore, the invention relates to a base assembly included in the fluid filter assembly adapted for engaging the filter element. Additionally, the invention relates to a fluid filter assembly, a method for assembling it, and a method for disassembling it.

[0002] This invention has found its preferred application in the automotive field. Specifically, the invention is situated within the context of fluid (particularly relating to fluids, liquids, or gases required for the operation of motor vehicles) filtration systems. In other words, the fluid filter assembly according to the invention and its components can be applied to air lines, oil lines, fuel lines, and / or water (or aqueous solutions) lines included in vehicles.

[0003] Systems for fluid filtration in automotive applications are known in the prior art.

[0004] Such known filtration systems include one (or more) filter cartridges integrally connected to a base assembly, which is fluidly connected to a corresponding fluid circulation system. Depending on the specific application of the filter cartridges, the filter assembly and base assembly have different geometries and physical properties.

[0005] However, in any embodiment of a filter assembly that includes a filter element, the filter element needs to be replaced as required by the motor vehicle, for example, when maintenance is required.

[0006] Therefore, a major problem with known filtration systems is making the engagement and disengagement of the filter element and base assembly simple and intuitive. Along with this need, a barrier configuration is required, in which the filter element and base assembly are interconnected, and this barrier is maintained over time to avoid the risk of unwanted separation.

[0007] In the prior art, solutions for filtration systems are known that involve the mutual engagement of filter cartridges and base components, which requires complex engagement and / or disengagement operations and, in some cases, additional specialized components, such as safety plugs. Summary of the Invention

[0008] Therefore, the object of the present invention is to provide a fluid filter assembly that ensures the safe blocking of the filter element against its corresponding base assembly, but also allows for simple and intuitive engagement and disengagement operations.

[0009] This objective is achieved by the filter element and the base assembly described in this invention. Furthermore, it is also achieved by the fluid filter assembly described in this invention, the assembly method of the fluid filter assembly claimed in this invention, and the disassembly method of the fluid filter assembly claimed in this invention. The invention also illustrates preferred embodiment variations with other advantageous aspects. Attached Figure Description

[0010] In any event, other features and advantages of the invention will become apparent from the following description of its preferred embodiments, which are given with reference to the accompanying drawings and are non-limiting examples, wherein:

[0011] Figure 1a , Figure 1b , Figure 1c and 1d A corresponding schematic diagram of a fluid filter assembly according to a respective preferred embodiment of the invention is shown;

[0012] Figure 2 , Figure 2 'and Figure 2 "A perspective view and two side views of the fluid filter assembly according to the first embodiment are shown respectively;"

[0013] Figure 3a and Figure 3b It shows that according to Figure 2 Two perspective views of some components of the fluid filter assembly, particularly showing the installation of the coupling device;

[0014] Figure 3a 'and 3b' is from Figure 3a and Figure 3b The cross-sectional view and perspective seen from below;

[0015] Figure 4 , Figure 4a and Figure 4b The longitudinal cross-section shows the results according to Figure 2 The assembly stage of the fluid filter assembly;

[0016] Figure 4 '、 Figure 4a 'and Figure 4b 'This shows the plane based on another longitudinal section.' Figure 4 , Figure 4a and Figure 4b The same assembly stage as shown;

[0017] Figure 5 A fluid filter assembly in an alternative embodiment is shown in longitudinal cross-section, comprising [missing information - likely related to a specific embodiment]. Figure 2 The same coupling device is shown in the embodiment;

[0018] Figure 6 , Figure 6 'and Figure 6 "A perspective view and two side views of the fluid filter assembly according to the second embodiment are shown respectively."

[0019] Figure 7a and 7b It shows that according to Figure 6 Two perspective views of some components of the fluid filter assembly, particularly showing the installation of the coupling device;

[0020] Figure 7a 'and 7b' is from Figure 7a and Figure 7b The cross-sectional view and perspective seen from below;

[0021] Figure 8 , Figure 8a and Figure 8b The longitudinal cross-section shows the results according to Figure 6 The assembly stage of the fluid filter assembly;

[0022] Figure 8 '、 Figure 8a 'and Figure 8b 'Based on another transverse cross-section shown Figure 8 , Figure 8a and Figure 8b The same assembly stage is shown.

[0023] Figure 9 A longitudinal section is shown of a fluid filter assembly in an alternative embodiment, which includes... Figure 6 The same engagement device is shown in the embodiments shown;

[0024] Figure 10 , Figure 10 'and Figure 10 "A perspective view, a side view, and a longitudinal cross-sectional view of the fluid filter assembly according to the third embodiment are shown respectively;"

[0025] Figure 11a and Figure 11b It shows that according to Figure 10 Two perspective views of some components of the fluid filter assembly, particularly showing the installation of the coupling device;

[0026] Figure 11a 'and Figure 11b 'From Figure 11a and Figure 11b The cross-sectional view and perspective seen from below;

[0027] Figure 12a , Figure 12b and Figure 12c The assembly stages of the fluid filter assembly according to Figure 11 are shown in a transverse cross-section;

[0028] Figure 13 A longitudinal section is shown of a fluid filter assembly in an alternative embodiment, which includes... Figure 10 The same engagement device is used in the embodiments shown. Detailed Implementation

[0029] In the accompanying drawings, reference numeral 1 generally denotes a fluid filter assembly. According to the drawings and in this invention, reference numeral 10 denotes a filter element, while the base assembly is indicated by reference numeral 100.

[0030] As illustrated by the example in the attached figures, the fluid filter assembly 1 extends primarily in the main axis direction, particularly along the main axis XX.

[0031] According to the invention, the fluid filter assembly 1 includes a filter element 10 (described extensively below) and a base assembly 100 (described extensively thereafter). Preferably, these two components are thus arranged continuously along the main axis XX.

[0032] According to the present invention, the fluid filter assembly 1 further includes a special engagement device 2, which is adapted to engage and disengage the filter element 10 and the base assembly 100 along the main axis XX.

[0033] Specifically, the joining device includes a first joining member 20 (or a filter element joining member) included in the filter element 10, and a second joining member 200 (or a base joining member) included in the base assembly 100.

[0034] As described below and shown in the accompanying drawings, the first engaging member 20 and the second engaging member 200 are specifically configured to engage each other in a blocking configuration in which the filter element 10 and the base assembly 100 axially block each other.

[0035] Specifically, the first engaging member 20 and the second engaging member 200 are specifically designed such that, in the blocking configuration, the first engaging member is housed within the second engaging member. Specifically, in the blocking configuration, the first engaging member 20 and the second engaging member 200 are complementary to each other to block the two components in the axial direction.

[0036] Figure 1a , Figure 1b , Figure 1c and Figure 1d A schematic diagram of a fluid filter assembly 1 according to the invention is shown, with the corresponding piping of the filter assembly located downstream and / or upstream of the fluid filter assembly 1, the filter assembly being suitable as part of a fluid circulation system. In particular, these arrangements are applicable to any type of fluid filter assembly 1, regardless of the nature of the fluid.

[0037] on the contrary, Figures 2 to 4 A preferred embodiment of the fluid filter assembly 1 is shown, wherein a fuel, preferably of the diesel type, is filtered. Preferably, in this embodiment, the base assembly 100 is fluidly positioned upstream of the filter element 10. Similarly, Figures 6 to 8 A second preferred embodiment of the fluid filter assembly 1 is shown, wherein fuel, preferably of the diesel type, is filtered. Additionally, Figure 10 Figure 12 shows a third preferred embodiment of the fluid filter assembly 1, wherein fuel, preferably of the diesel type, is filtered.

[0038] Alternatively, Figure 5 It is based on relative to Figure 2 and 4 The schematic diagram of the fluid filter assembly 1, a variant of the embodiment, is not necessarily limited to fuel filtration and does not necessarily have a base assembly 100 located upstream of the filter element 10. Similarly, alternatively, Figure 9 It is based on relative to Figures 6 to 8 The schematic diagram of the fluid filter assembly 1, a variant of the embodiment, is not necessarily limited to fuel filtration and does not necessarily have a base assembly 100 located upstream of the filter element 10. Alternatively, Figure 13 It is based on relative to Figure 10 The schematic diagram of the fluid filter assembly 1 of the embodiment shown in Figure 12 is not necessarily limited to fuel filtration and does not necessarily have a base assembly 100 located upstream of the filter element 10.

[0039] Figures 2 to 4 The embodiments and Figure 5 The embodiments mentioned above have the same coupling device 2. Similarly, Figures 6 to 8 The embodiments and Figure 9 The embodiments mentioned above have the same coupling device 2. Additionally, Figure 10 Examples up to 12 and Figure 13 The embodiments have the same engagement device 2.

[0040] Preferably, the mutual engagement between the filter element 10 and the base assembly 100 is carried out in the axial direction by mutual axial insertion along the main axis XX.

[0041] According to some embodiment variations, the mutual engagement between the filter element 10 and the base assembly 100 is carried out along the main axis XX in the rotational direction.

[0042] According to the present invention, the filter element 10 extends along the filter element shaft ZZ. Preferably, in the blocking configuration, the filter element shaft ZZ coincides with the main shaft XX.

[0043] According to the present invention, the filter element 10 further includes a mating plane 15 at an axial end, on which the first mating member 20 is formed.

[0044] In other words, the first joining member 20 extends in height from the joining plane 15.

[0045] As illustrated by the examples in the accompanying drawings, in a preferred embodiment, the filter element 10 includes a filter medium 13, which is preferably a hollow cylindrical shape through which fluid can pass radially and extends along the filter element axis ZZ.

[0046] As illustrated by the examples in the accompanying drawings, in a preferred embodiment, the filter element 10 includes a filter medium 13, which is preferably hollow and can be passed through radially by fluid and extends along the filter element axis ZZ.

[0047] In an alternative embodiment, the filter medium 13 has an axial extension along axis ZZ and is traversed by the working fluid in a substantially axial direction parallel to axis ZZ. In particular, the invention is independent of the direction in which the fluid traverses the filter medium 13.

[0048] In addition, the filter element 10 includes a first end cap 11 and a second end cap 12, which are placed at the axial ends of the filter medium 13, for example, by welding at their ends.

[0049] According to a preferred embodiment, one of the first end cap 11 or the second end cap 12 corresponds to the engagement plane 15 on which the first engagement member 20 is presented.

[0050] According to a variation of the embodiment, the filter element 10 includes a filter element body 16, preferably cylindrical, having an extension thereon along the filter element axis ZZ between a first body plate 17 and a second body plate 18. A filter medium 13 is housed within the filter element body 16, and a first end cap 11 and a second end cap 12 are placed on the filter medium 13. The filter medium 13 is preferably adapted to internally engage the filter element body 16 to hold the filter medium 13 in a predefined axial position. Therefore, preferably, the filtration operation is performed within the filter element body 16.

[0051] According to this embodiment variation, one of the first body plate 17 or the second body plate 18 corresponds to the mating plane 15, on which the first mating member 20 is presented.

[0052] According to the present invention, the first engaging member 20 includes at least two toothed elements 21 that are diametrically opposed to the filter element shaft ZZ.

[0053] Each tooth element 21 extends vertically from the mating plane 15, and each tooth element 21 extends fully or partially on a virtual surface parallel to the filter element axis ZZ. Each tooth element 21 has a generally T-shaped or generally L-shaped form.

[0054] In other words, at least a portion of the toothed element 21 lies on a single surface extending parallel to the filter element shaft ZZ.

[0055] Preferably, the surface is planar (therefore, the two distally opposing tooth elements 21 extend on corresponding virtual surfaces that are parallel to each other).

[0056] In a variant of the embodiment, the surface is arc-shaped, such as circumferential (i.e., the two distally opposing toothed elements 21 extend on corresponding dummy surfaces that extend concentrically with the filter shaft ZZ).

[0057] According to a preferred embodiment, each tooth element 21 includes a first rod 22 and a head 23. In some embodiments, both the first rod 22 and the head 23 are located on the dummy surface. However, in other embodiments, the first rod 22 and the head 23 extend on two respectively orthogonal planes.

[0058] Preferably, the rod extends from the engagement plane 15, while the head 23 is located at a distal position from the plane.

[0059] According to the present invention, in the above-described blocking configuration, the head 23 is engaged in the axial direction by the second engaging member 200.

[0060] That is, the head 23 includes a connecting portion 23' that protrudes relative to the first rod 22 which can be engaged by the second engaging member 200, in order to prevent unwanted movement in the axial direction between the components.

[0061] In other words, the head 23 and the first rod 22 define at least one undercut that can be engaged by the second engaging member 200.

[0062] Specifically, in the embodiment with T-shaped tooth element 21, the head 23 and the first rod 22 define at least two undercuts at the side of the rod. Although in the embodiment with L-shaped tooth element 21, the head 23 and the first rod 22 define undercuts.

[0063] Furthermore, according to a preferred embodiment, the connecting portion 23' protrudes laterally in a tapered manner relative to the first rod 22 in the lateral direction, thereby identifying the inclined edge 23". Preferably, the inclined edge 23" is viewed from the top of the mating plane 15. Preferably, the inclined edge 23" faces the opposite side of the top view of the mating plane 15.

[0064] According to the invention, as shown in the accompanying drawings and described below, the second engaging member 200 has a shape complementary to the shape of the teeth described above, thereby providing a T-shaped housing with a corresponding blocking bracket 230'. Preferably, the blocking bracket 230' is inclined like the inclined edge 23”.

[0065] According to the invention, as shown in the figures and described below, the second engagement member 200 has a shape complementary to the shape of the teeth described above, thereby providing a housing suitable for engaging the L-shaped tooth element with a corresponding blocking bracket 230', which is adapted to engage a corresponding undercut.

[0066] According to the present invention, it should be noted that each tooth element 21 is elastically yielding in the radial direction, thereby enabling the blocking configuration to be achieved after the radial movement of the tooth element 21.

[0067] In other words, in order to achieve the blocking configuration, once the tooth element 21 reaches the position corresponding to the blocking configuration, the tooth element 21 needs to move radially to return to its radial starting position.

[0068] According to the invention, the radial movement of the tooth element 21 is achieved in the engagement between the first engagement member 20 and the second engagement member 200, or particularly, for example, by external control by a user.

[0069] According to a preferred embodiment, the connecting portion 23' is adapted to be engaged by the second engaging member 200, such that it is subjected to a thrust action in the radial direction during the engagement operation between the filter element 10 and the base assembly 100.

[0070] According to a preferred embodiment, the head 23 of the tooth element 21 further has an axial slit extending over its height portion, such that the head 23 is divided into a first portion 23a and a second portion 23b. In this embodiment, for example, a rib 280 provided on the base assembly 100 may be accommodated in the axial slit, thereby further reinforcing the inter-component engagement. Similarly, the second engagement member 200 includes different housings 230a, 230b for each individual first portion 23a and second portion 23b.

[0071] According to the present invention, it is also important to note how the toothed element 21 can be stopped and guided to a position where the engagement between the filter element 10 and the base assembly 100 may be released simply by actuation in the radial direction.

[0072] According to the invention, the first engagement member 20 includes an operating device 24 for each tooth element 21, wherein actuation of the operating device 24 involves radial movement of the tooth element 21.

[0073] Preferably, each operating device 24 extends radially from the toothed element 21.

[0074] According to a preferred embodiment, each operating device 24 is positioned in the middle portion between the engagement plane 15 and the distal portion of the corresponding tooth element 21, preferably as a head 23.

[0075] According to a preferred embodiment, each operating device 24 includes a second rod 25 that extends substantially perpendicular to the toothed element 21. Preferably, the plane of the second rod 25 extends orthogonally to the imaginary plane containing the toothed element 21.

[0076] According to a preferred embodiment, each operating device 24 includes an operating member 26 at the end of a rod opposite to the end connected to the toothed element 21. The operating member 26 performs a radial thrust action on the second rod 25 and thus on the toothed element 21.

[0077] According to a preferred embodiment, the operating member 26 has an extension substantially perpendicular to the second rod 25, which is manually pressed by a user or by a specially shaped device. Preferably, the user presses the two diametrically opposed operating members 26 by performing a radial action on the two toothed elements 21.

[0078] According to a preferred embodiment, the operating member 26 is essentially a manually pressed button.

[0079] According to a preferred embodiment, the second rod 25 has a port 25' extending in a direction substantially parallel to the filter element axis ZZ.

[0080] According to a preferred embodiment, in the blocking configuration, the safety insert 250 included in the second engaging member 200 is adapted to be received in the opening 25'.

[0081] According to a preferred embodiment, the opening 25' and the safety insert 250 are specifically shaped to each other to prevent excessive radial movement of the toothed element 21. In other words, the opening 25' and the safety insert 250 are configured to prevent the toothed element 21 from bending radially beyond a predefined amount, and are specifically designed to prevent the toothed element 21 from breaking.

[0082] As described, the present invention also relates to a base assembly 100 of a fluid filter assembly 1, which is adapted to engage and fluidly connect the filter element 10 along a main axis XX.

[0083] Specifically, the base assembly 100 includes the second engagement member 200, which is adapted to engage with the first engagement member 20, up to a blocking configuration that prevents any undesirable reciprocating movement in the axial direction between the components (such movement is actually possible only after the actuation of the aforementioned operating device 24).

[0084] The base assembly 100 extends at least in the second engagement member 200 along the assembly axis YY corresponding to the main shaft XX, wherein the fluid filter assembly 1 is assembled.

[0085] According to the invention, for each tooth element 21 included in the first engagement member 20, the second engagement member 200 includes a blocking housing 230, in which the tooth element 21 is housed in the blocking housing 230, the blocking housing 230 having a shape complementary to the tooth element 21.

[0086] In other words, the blocking housing 230 replicates the shape of the toothed element 21 in a complementary manner, and in particular the first rod 22 and especially the head 23.

[0087] In a preferred embodiment, the blocking housing 230 replicates the T-shape of the toothed element 21 by presenting a blocking bracket 230' that is specially shaped as abutment head 23.

[0088] In a preferred embodiment, the blocking housing 230 replicates the T-shape of the toothed element 21 by presenting a blocking bracket 230' that is specially shaped as abutment head 23.

[0089] According to another preferred embodiment, the blocking housing 230 replicates the L-shape of the toothed element 21 by presenting a blocking bracket 230' specifically shaped to abut against the connecting portion 23' of the head 23. Preferably, the blocking housing is specifically shaped to abut against the bottom side of the connecting portion 23'.

[0090] According to a preferred embodiment, the second engagement member 200 includes an insertion guide 210 that can be engaged by a toothed element 21, such that during the engagement operation between the filter element 10 and the base assembly 100, the insertion guide 210 performs a radial movement on the toothed element 21.

[0091] Preferably, in practice, in the insertion guide 210, the radial thrust tooth 260 is configured to engage with the connecting portion 23' to apply a thrust action to the tooth element in the radial direction.

[0092] Based on these characteristics, in one embodiment, the insertion guide 210 is engaged by the toothed element 21 in an axial direction parallel to the main shaft XX, i.e., parallel to the assembly axis YY along which the base assembly 100 extends.

[0093] Based on these characteristics, but in another embodiment, the insertion guide 210 engages with the toothed element 21 in a rotatable manner.

[0094] For example, preferably, the insertion guide 210 has a generally elliptical extension relative to the assembly shaft YY. Each tooth element 21 is adapted to engage the insertion guide 210 up to the corresponding blocking housing 230, depending on the radial distance separating them from the corresponding filter shaft ZZ.

[0095] As shown in the attached figures, and especially in Figure 1a , Figure 1b , Figure 1c and Figure 1d As shown in the scheme, in some embodiments, the base assembly 100 is a support group adapted to fluidly connect the filter element 10 to the line through which the fluid flows.

[0096] Specifically, according to some embodiments, the support assembly includes a filter housing 150 into which the filter element 10 can be inserted and assembled (e.g., Figure 1c and Figure 1d (As shown).

[0097] According to other embodiments, the support assembly is directly joined to the filter element 10 (e.g.) Figure 1a and Figure 1b (As shown).

[0098] According to a preferred embodiment, it is also important to emphasize how the base assembly includes suitable components for operating on the respective filtered and / or unfiltered fluids, such as a heater suitable for heating the unfiltered fluid before it fluidly reaches the filter element 10.

[0099] Therefore, the present invention also relates to the same fluid filter assembly 1 extending along the main axis XX, and includes the filter element 10 as described above, the base assembly 100 as described above, and the engagement device 2 as described above.

[0100] Furthermore, the present invention also relates to a method for assembling a fluid filter assembly 1, wherein the method includes the following steps:

[0101] The filter element 10 and the base assembly 100 are engaged along and / or around the main axis XX to make the first engagement member 20 and the second engagement member 200 block configuration.

[0102] Preferably, during the execution phase of the mutual engagement action between the filter element 10 and the base assembly 100, the user or the second engagement member 200 performs a control action on the toothed element 21 in the radial direction.

[0103] According to a preferred embodiment, the engagement between the filter element 10 and the base assembly 100 is achieved by interlocking them in the axial direction.

[0104] According to other embodiments, the engagement between the filter element 10 and the base assembly 100 is achieved by insertion in the axial direction and simultaneous or subsequent rotational action.

[0105] The present invention also relates to a method for disassembling the fluid filter assembly 1, wherein the method includes the following steps:

[0106] A radial thrust action is performed on the toothed element 21 included in the first engagement member 20, starting from the blocking configuration;

[0107] A disengagement action is performed between the filter element 10 and the base assembly 100 along and / or around the main axis XX.

[0108] According to a preferred embodiment, the separation between the filter element 10 and the base assembly 100 is achieved by mutual spacing in the axial direction after actuation of the operating device.

[0109] According to other embodiments, the disengagement between the filter element 10 and the base assembly 100 is achieved by rotating in the axial direction after actuation of the operating device and simultaneously or subsequently at intervals.

[0110] As shown in the attached table by way of example, the construction of the filter element body 16 is not the purpose of this invention. For example, in practice, the filter element body is made of an aluminum body, which is closed at its axial end by a special cap or lid component, for example made of plastic material, in which the mating plane 15 is located, and thus the second mating member 200 is formed on said component.

[0111] According to another embodiment, the coupling device provides inverted positioning for the described first coupling member and second coupling member. That is, the first coupling member is positioned on the base assembly, while the second coupling member is positioned on the filter element.

[0112] According to some embodiments of the invention, the filter element and base assembly are placed in a horizontal position in the vehicle, that is, extending to a position parallel to the ground plane on which the vehicle moves.

[0113] Innovatively, the filter element, base assembly, and fluid filter assembly in the aforementioned vehicle fully meet the objective of this invention to overcome the typical defects of the prior art. Innovatively, the assembly and disassembly methods of the fluid filter assembly fully meet the objective of this invention to overcome the typical defects of the prior art.

[0114] Advantageously, the assembly and disassembly of the filter element-base assembly is actually very simple, intuitive and guided.

[0115] Advantageously, in the blocking configuration, the engagement device ensures that the two components maintain a fixed axial position over time. Advantageously, it ensures the engagement between the base assembly and the filter element, and in particular, the maintenance of the mutual fluid engagement between them. Advantageously, in embodiments where the base assembly or filter element comprises a dedicated housing of the filter media, the engagement between the base assembly and the filter element is maintained even in "emergency (or outbreak)" situations, where overpressure or pressure peaks occur within the housing.

[0116] Advantageously, in some embodiments, the radial movement of the toothed element is guided by the same mutual engagement operation between the filter element and the base assembly.

[0117] Advantageously, the operating device can be easily controlled manually and / or by specially designed external control devices when needed.

[0118] Advantageously, the operating device also includes a safety device adapted to eliminate the risk of excessive radial movement of the tooth element.

[0119] Advantageously, due to the inclined edge, the axial blocking action is effectively unloaded onto the component.

[0120] Advantageously, the geometry of the coupling system is simplified to reduce the size of the teeth and their respective seats, and the complexity and relative cost of the molds used to manufacture the coupling device are minimized.

[0121] Advantageously, the assembly method (and conversely, the disassembly method) involves simple, intuitive, and reproducible operations over time.

[0122] Therefore, another advantage of the present invention is that it cannot be installed on a base assembly of a filter element that is not equipped with, for example, the toothed element described. In other words, in a fluid filter assembly, it is not possible, for example, to use conventional filter elements to ensure the use of high-quality filter elements supplied by the manufacturer, for example, during maintenance operations.

[0123] Advantageously, compared to known coupling systems, unwanted disassembly is prevented. In fact, movement of the toothed element can begin only from the blocking configuration and only when a radial thrust action is performed on the toothed element.

[0124] Advantageously, it prevents the toothed element from undergoing radial motion greater than required by a particular device.

[0125] Advantageously, the engagement and mutual obstruction between the filter element and the base assembly are guided and controlled by the geometry of the device itself, thereby ensuring a longer service life for the respective components.

[0126] Advantageously, the coupling device provides for mounting the first coupling member in the base assembly and the second coupling member on the filter element.

[0127] Obviously, those skilled in the art can modify the filter element, base assembly, fluid filter assembly, or assembly method to meet any possible requirements, all of which are included within the scope of protection defined by the appended claims.

[0128] Reference Number List

[0129] 1 fluid filter group

[0130] 10 filter cartridges

[0131] 100 base components

[0132] 150 filter cartridge housing

[0133] 11 First end cap

[0134] 12 Second end cap

[0135] 13 Filter Media

[0136] 15 Joint planes

[0137] 16 filter element body

[0138] 17 First Main Board

[0139] 18 Second Main Board

[0140] 2. Connecting device

[0141] 21-tooth element

[0142] 22 First shot

[0143] 23 heads

[0144] 23' Connecting part

[0145] 23a Part 1

[0146] 23b Part 2

[0147] 23” sloping edge

[0148] 24 Operating devices

[0149] 25 Second shot

[0150] 25' opening

[0151] 26 operating components

[0152] 20 First joint member

[0153] 200 Second joint member

[0154] 210 Insert Guide

[0155] 230 blocking housing

[0156] 230' blocking bracket

[0157] 230a and 230b have different housings

[0158] 280 ribs

[0159] 260 radial thrust teeth

[0160] XX spindle

[0161] YY assembly axis

[0162] ZZ filter element shaft

Claims

1. A filter element (10) of a fluid filter assembly (1), wherein the fluid filter assembly (1) extends along a main axis (XX) and further comprises: i) Base assembly (100) adapted to engage and fluidly connect filter element (10) along main axis (XX); ii) A coupling device (2) comprising a first coupling member (20) and a second coupling member (200), the first coupling member (20) being included in the filter element (10) and the second coupling member (200) being included in the base assembly (100), the first coupling member (20) and the second coupling member (200) being specifically designed to engage each other in a blocking configuration; In the blocking configuration, the filter element (10) and the base assembly (100) block each other axially; The filter element (10) extends along the filter element shaft (ZZ) and includes a mating plane (15) at its axial end, on which the first mating member (20) is formed, the first mating member (20) including at least two toothed elements (21) that are radially opposite to the filter element shaft (ZZ). Each toothed element (21) extends from the engagement plane (15) at a height parallel to the filter element shaft (ZZ), and each toothed element (21) includes a first rod (22) and a head (23) such that, in the blocking configuration, the head (23) is engaged by the second engagement member (200). Each tooth element (21) elastically yields in the radial direction, enabling the blocking configuration to be achieved after the tooth element has moved radially. The first engagement member (20) includes an operating device (24) for each tooth element (21), the operating device (24) extending radially from the tooth element (21), wherein actuation of the operating device (24) involves radial movement of the tooth element (21).

2. The filter element (10) according to claim 1, characterized in that, Each operating device (24) includes a second rod (25) that extends substantially perpendicular to the toothed element (21).

3. The filter element (10) according to claim 2, characterized in that, Each operating device (24) includes an operating member (26) positioned at the end of the second rod (25) opposite to the end connected to the toothed element (21), wherein a radial thrust action can be performed on the second rod (25) and thus on the toothed element (21) by means of the operating member (26), wherein the operating member (26) has an extension substantially orthogonal to the second rod (25), the extension being adapted for manual pressing by a user or by a specially shaped device.

4. The filter element (10) according to any one of claims 2 or 3, characterized in that, The second rod (25) has a port (25') extending in a direction substantially parallel to the filter element shaft (ZZ), wherein, in the blocking configuration, a safety insert (250) included in the second engaging member (200) is adapted to be received in the port (25').

5. The filter element (10) according to any one of claims 2 to 3, characterized in that, The operating device (24) is positioned at the midpoint between the engagement plane (15) and the head (23) of the tooth element (21).

6. The filter element (10) according to any one of claims 1 to 3, characterized in that, The head (23) of each tooth element (21) includes two connecting portions (23') that protrude laterally relative to the first rod (22) and form two undercuts on opposite sides of the first rod (22), such that the tooth element is substantially T-shaped.

7. The filter element (10) according to any one of claims 1 to 3, characterized in that, The head (23) of each tooth element (21) includes a single connecting portion (23') that protrudes radially relative to the first rod (22) to form an undercut, such that the tooth element (21) is substantially L-shaped.

8. The filter element (10) according to claim 6, characterized in that, The connecting portion (23') is adapted to be engaged by the second engaging member (200) so as to be subjected to a thrust action in the radial direction during the engagement operation between the filter element (10) and the base assembly (100).

9. The filter element (10) according to any one of claims 1 to 3, characterized in that, The head (23) of the toothed element (21) has an axial slit extending over a height portion, such that the head (23) is divided into a first part (23a) and a second part (23b).

10. The filter element (10) according to any one of claims 1 to 3, characterized in that, include: The filter medium (13) is hollow and cylindrical, and the fluid can pass through the filter medium (13) radially. The filter medium (13) extends along the filter element shaft (ZZ). A first end cap (11) and a second end cap (12) are placed at the axial ends of the filter medium (13). The first end cap (11) or the second end cap (12) corresponds to the engagement plane (15) on which the first engagement member (20) is located.

11. The filter element (10) according to any one of claims 1 to 3, characterized in that, include: The filter element body (16) is cylindrical and extends along the filter element axis (ZZ) between the first main body plate (17) and the second main body plate (18). Filter medium (13), which is contained in the filter element body (16); The first main plate (17) or the second main plate (18) corresponds to the joint plane (15) on which the first joint member (20) is located.

12. A base assembly (100) of a fluid filter assembly (1), characterized in that, The fluid filter assembly (1) extends along the main axis (XX) and also includes: i) A filter element (10) according to any one of the preceding claims, wherein the base assembly (100) is adapted to engage and fluidly connect the filter element (10) along the main axis (XX); ii) A coupling device (2) comprising a first coupling member (20) and a second coupling member (200), the first coupling member (20) being included in the filter element (10), and the second coupling member (200) comprising a blocking housing (230) for each tooth element (21) included in the first coupling member (20), wherein, in the blocking configuration, the tooth element (21) is received in the blocking housing (230), the blocking housing (230) having a shape complementary to the tooth element (21).

13. The base assembly (100) according to claim 12, characterized in that, The second engagement member (200) includes an insertion guide (210) that can be engaged by the toothed element (21) such that, during engagement operations between the filter element (10) and the base assembly (100), the insertion guide (210) performs radial movement on the toothed element (21).

14. The base assembly (100) according to claim 13, characterized in that, The insertion guide (210) is engaged by the toothed element (21) in an axial direction parallel to the main shaft (XX).

15. The base assembly (100) according to claim 13, characterized in that, The insertion guide (210) can be rotatably engaged by the toothed element (21), wherein the insertion guide (210) has an extension that is substantially elliptical relative to the assembly axis (YY).

16. The base assembly (100) according to any one of claims 13 to 15, characterized in that, The base assembly (100) is a support assembly adapted to fluidly connect the filter element (10) to the lines through which the fluid flows.

17. The base assembly (100) according to claim 16, characterized in that, The support assembly includes a filter housing (150), into which the filter element (10) can be inserted and assembled.

18. The base assembly (100) according to claim 16, characterized in that, The support assembly includes a heater adapted to heat the fluid to be filtered before it fluidly reaches the filter element (10).

19. A fluid filter assembly (1), wherein, The fluid filter assembly (1) extends along the main axis (XX) and includes: Filter element (10) according to any one of claims 1 to 11; The base assembly (100) according to any one of claims 12 to 18; The engagement device (2) includes a first engagement member (20) and a second engagement member (200), the first engagement member (20) being included in the filter element (10) and the second engagement member (200) being included in the base assembly (100), the first engagement member (20) and the second engagement member (200) being specifically shaped to engage each other in a blocking configuration in which the filter element (10) and the base assembly (100) axially block each other.

20. A method of assembling a fluid filter assembly (1) according to claim 19, comprising the following steps: Mutual engagement is performed between the filter element (10) and the base assembly (100) along and / or around the main axis (XX) to make the first engagement member (20) and the second engagement member (200) form the blocking configuration.

21. The method according to claim 20, characterized in that, During the execution phase of the mutual engagement action between the filter element (10) and the base assembly (100), the user or the second engagement member (200) performs a control action on the toothed element (21) in the radial direction.

22. A method for disassembling a fluid filter assembly (1) of a vehicle according to claim 19, comprising the following steps: A radial thrust action is performed on the toothed element (21) included in the first engaging member (20) starting from the blocking configuration; A disengagement action is performed between the filter element (10) and the base assembly (100) along and / or around the main axis (XX).

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