CN113123846B - Blow-by filter assembly having a shaft with a locking insert - Google Patents

Abstract

The present invention relates to a blow-by gas filter assembly (1) fluidly connected to a crankcase ventilation circuit of an internal combustion engine. The filter assembly (1) has an axis (X-X) and comprises a filter group (3), the filter group (3) being in the shape of a hollow cylinder and having a central chamber (300), the central chamber (300) being radially traversable by blow-by gases, preferably radially traversable from the outside to the inside. In addition, the filter assembly (1) comprises a support and control member (4) which can be coupled to the filter group (3), the support and control member (4) being suitable for supporting the filter group (3) in an axial position along the X-X axis and for controlling the rotation of the filter group (3) around the (X-X) axis to perform a filtering operation. The member (4) and the filter group (3) each comprise a locking crown (510) and a locking ring (310) which are specially shaped to fit each other. Furthermore, the blowby filter assembly (1) comprises a locking insert (7) which can be radially inserted relative to the (X-X) axis via a locking crown (510) and a locking ring (310) to perform mutual locking of the filter group (3) to the component (4).

Description

Blow-by filter assembly having a shaft with a locking insert

Technical Field

The present invention relates to a blow-by gas filter assembly.

Specifically, the blow-by gas filter assembly of the present invention may be fluidly connected to a crankcase ventilation circuit of an internal combustion engine in a vehicle to receive blow-by gases (from the crankcase) and filter the blow-by gases from suspended particles contained therein.

In particular, "blow-by" means oil gases discharged from the crankcase of an internal combustion engine during operation of the internal combustion engine. Specifically, the blow-by gases have a composition similar to that of the exhaust gases and are produced by the combustion of an air/fuel mixture in the combustion chamber. These gases pass by the cylinder and carry with them carbon particles and oil droplets, leaking into the lower part of the crankcase instead of reaching the waste exhaust circuit. In this discussion, for simplicity, blow-by gases are considered to include air and suspended particles; the suspended particles include oil droplets and/or carbon particles.

Background Art

In the prior art, solutions are known which are filter assemblies which can be fluidically connected to the crankcase and are suitable for removing suspended particles from the blow-by gases.

In particular, solutions for blow-by gas filter assemblies are known which separate undesirable suspended particles from the aforementioned blow-by gases and comprise a filter group having such a purpose.

In the prior art, various embodiments of filter assemblies are known which include a filter pack containing porous filter media, driven in rotation by specially shaped support and control members, thereby separating suspended particles from the air by passing through the porous material and by the action of centrifugal force.

In fact, solutions are known from the prior art in which the support and control member comprises a control drive of the mechanical type, for example connected to a rotating element of the vehicle, such as the crankcase of the engine, or of the electrical type comprising a specific electric motor.

Such embodiments typically have a complex shape, in particular in the connection method between the filter group and the control element. Specifically, such embodiments have a complex connection between the two components (or component groups): this specifically involves complex assembly (disassembly) operations and involves a certain risk of angular displacement during the rotation operation of the filter group.

Summary of the invention

Therefore, the need is strongly felt in the aforementioned prior art for a blow-by gas filter assembly that solves the aforementioned problems and is simple in shape and in particular in the method of interconnection of the filter group and the support and control components.

It is an object of the present invention to provide new embodiments of blow-by gas filter assemblies that meet the described needs.

Such an object is achieved by a blow-by gas filter assembly as claimed in claim 1. The dependent claims show variants of the preferred embodiment which may have further advantageous aspects.

BRIEF DESCRIPTION OF THE DRAWINGS

In any case, further characteristics and advantages of the present invention will be identified from the description of a preferred embodiment thereof given below, which is made by way of non-limiting example with reference to the accompanying drawings, in which:

FIG. 1 a shows a perspective view of separated parts of a blow-by gas filter assembly according to the present invention according to a preferred embodiment;

FIG. 1 b shows a cross-sectional view of the assembled blowby filter assembly as in FIG. 1 a ;

FIG. 2 shows a perspective view of separated parts of some components of the blow-by gas filter assembly in FIG. 1 a;

FIG3 shows a longitudinal cross-sectional side view of FIG2 ;

FIG. 3 a shows a cross-sectional view of the components as in FIG. 3 assembled to each other;

FIG. 4 a shows a perspective view of separated parts of a blow-by gas filter assembly according to the present invention according to another preferred embodiment;

FIG4b shows a cross-sectional view of the assembled blowby filter assembly as in FIG4a;

FIG5 shows a perspective view of separated parts of some components of the blow-by gas filter assembly in FIG4a;

FIG6 shows a side view of the longitudinal cross section of FIG5 ;

FIG. 6 a shows a cross-sectional view of the components as in FIG. 6 assembled to one another.

DETAILED DESCRIPTION

With reference to the drawings, reference numeral 1 denotes a blow-by gas filter assembly, which is adapted to perform a filtering/separating action on particles (liquid and/or solid) suspended in an air flow.

The blow-by gas filter assembly 1 can be fluidly connected to a crankcase ventilation circuit of an internal combustion engine of a vehicle to receive blow-by gas and filter suspended particles contained therein, returning a clean gas (i.e., filtered) flow to other vehicle systems, such as, for example, returning to an engine intake circuit connected to a combustion chamber of the internal combustion engine.

Preferably, the blow-by gas filter assembly is directly mountable to the crankcase of the internal combustion engine of the vehicle. Specifically, the present invention is not limited to this feature; the blow-by gas filter assembly 1 can be constructed as a stand-alone device including a corresponding inlet port and an outlet port, the inlet port being in communication with the crankcase (to receive the blow-by gas to be filtered) and the outlet port being in communication with the intake circuit (to recirculate the airflow filtered of solid and liquid particles to the combustion chamber).

According to the invention, the filter assembly 1 comprises an axis X-X about which the components described below extend or are located.

According to a preferred embodiment, the blow-by gas filter assembly 1 comprises a body 2. As will be broadly described below and as can be ascertained from the drawings attached below, preferably other components of the system are located in or on said body 2.

In particular, the body 2 comprises a filter chamber 20 in which the filtering/separation operation of the blow-by gases takes place. The filter chamber 20 is thus fluidly connected to the crankcase ventilation circuit of the internal combustion engine of the vehicle to receive dirty blow-by gases, i.e. blow-by gases comprising suspended particles (solid and/or liquid), and to the engine air intake system to reintroduce clean blow-by gases, i.e. blow-by gases cleaned of suspended particles, into said system.

According to a preferred embodiment, the body 2 comprises respective blow-by gas inlets and outlets.

Preferably, the body 2 comprises an inlet nozzle 21 fluidly connected to the crankcase ventilation circuit of the vehicle to receive the blow-by gases to be filtered. Preferably, the inlet nozzle is made substantially parallel to the X-X axis spaced therefrom. Preferably, the inlet nozzle is made on a side wall of the body 2. Preferably, the inlet nozzle is made on a wall of the body 2 defining the filter chamber 20.

Furthermore, the body 2 comprises an outlet nozzle 22. Preferably, the outlet nozzle 22 is configured to be positioned on the X-X axis. Preferably, the outlet nozzle 22 is perpendicular to the X-X axis. Preferably, the outlet nozzle 22 is coaxial with the X-X axis.

The outlet mouth 22 is delimited laterally and annularly by an outlet edge 220 .

According to a preferred embodiment, starting from the outlet mouth 22, the body 2 provides an outlet connection that engages with an engine intake circuit that communicates with the combustion chamber of an internal combustion engine of the vehicle. According to a preferred embodiment, the outlet connection communicates with an outlet opening formed on a coupling flange of the body 2 that leads to the crankcase of the internal combustion engine.

Furthermore, according to a preferred embodiment, the body 2 comprises an assembly opening 25, through which the components described below can be inserted into the body 2, preferably into the filter chamber 20. Preferably, the assembly opening 25 is configured in a position opposite to the outlet mouth 22. Preferably, the assembly opening 25 is configured along the X-X axis, with an extension (orientation) transverse to the X-X axis, preferably a vertical extension.

According to the invention, the blow-by gas filter assembly 1 comprises a filter group 3 , particularly adapted to perform said filtering/separation operation of particles suspended in the blow-by gas. Said filter group 3 is positionable and operative in a filter chamber 20 .

The filter group 3 extends along the X-X axis and has a hollow cylindrical shape, in fact comprising a central chamber 300.

The blow-by gas may radially penetrate the filter group 3. Preferably, the blow-by gas may radially penetrate the filter group 3 from the outside toward the inside.

Preferably, the inlet mouth faces radially towards the filter group 3. According to a preferred embodiment, the inlet mouth faces radially towards the outer surface of the filter group 3.

Preferably, said outlet mouth 22 faces axially towards the central chamber 300 .

In other words, the filter group 3 determines a dirty side, in which blow-by gases to be filtered are present, and a clean side, in which the filtered blow-by gases are present, in the filter chamber 20. Preferably, the outlet nozzle 22 is fluidly connected to the clean side.

According to a preferred embodiment, the central chamber 300 of the filter bank surrounds the clean side where the filtered blow-by gases are present and is in fluid communication with the outlet nozzle 22 .

According to a preferred embodiment, the filter group 3 comprises a filter medium 30. The filter medium 30, which can be penetrated radially, comprises a nonwoven fabric pleated in the form of a star-shaped or porous cylindrical membrane.

Furthermore, according to a preferred embodiment, the filter group 3 includes a first filter plate 31 and a second filter plate 32 which are alternately arranged at the end of the filter medium 30 .

Preferably, the filter group 3 includes a first filter plate 31 and a second plate 32 joined to the ends of the filter medium 30 with each other.

Furthermore, according to a preferred embodiment, the filter group 3 comprises a central structure 33 which is housed within the filter medium 30 and which joins the two filter plates 31, 32 so that the filter plates 31, 32 are integrally rotatably connected. Preferably, the central structure 33 has one or more through openings adapted to allow the passage of the fluid being filtered.

According to a preferred embodiment, the central structure 33 is configured to be integrally formed with the first filter plate 31. Furthermore, according to a preferred embodiment, the filter group 3 comprises an outer structure 34 which surrounds the filter medium 30 on the outside and joins the two filter plates 31, 32. Preferably, the outer structure 34 has a plurality of through openings suitable for allowing the passage of the fluid being filtered.

According to a preferred embodiment, the central structure 33 is configured to be integrally formed with the second filter plate 32 .

According to a preferred embodiment, said central structure 33 is a tubular body having one or more through openings engaging with the filter plates 31 , 32 .

As shown in the figures, the central chamber 300 extends through the filter plates 31, 32 surrounded by the filter medium 30. According to a preferred embodiment, the central chamber 300 extends through corresponding through openings 318, 328 configured on the filter plates 31, 32. Preferably, the openings 318, 328 are concentric with the X-X axis like the central chamber 300.

In addition, according to the present invention, the filter assembly 1 includes a support and control member 4 that can be engaged with the filter group 3, and the support and control member 4 is suitable for supporting the filter group in an axial position along the X-X axis and for controlling the filter group to rotate around the X-X axis to perform a filtering operation.

In other words, the support and control member 4 is a component or a group of components suitable for receiving or generating a rotational action on the filter group 3 in order to guide the filter group in rotation.

According to a preferred embodiment, the support and control member 4 comprises a control drive 6 operatively connected to the filter group 3 to control the filter group 3 in rotation about the X-X axis.

Preferably, the control drive 6 is of electrical type or mechanical type or electromechanical type.

According to a preferred embodiment, the control drive 6 is connected to an external group comprised in the vehicle, for example: a camshaft.

According to another preferred embodiment, the control drive 6 comprises an electric motor group 60, which comprises a rotor 61 and a stator 62. The electromagnetic drive of the stator 62 causes the rotor 61 to rotate about the X-X axis. According to a preferred embodiment, the electric motor group 60 is of the electric type, preferably brushless.

According to a preferred embodiment, the rotor 61 comprises one or more elements of ferromagnetic material arranged in an annular shape.

Furthermore, preferably, the support and control member 4 comprises a closing cover 10 which fits tightly on the main body 2. Preferably, the closing cover 10 sealingly engages the main body 2 to close the assembly opening 25 provided on the main body. Preferably, the closing cover 10 supports the electric motor group 60. Preferably, the closing cover 10 is mountable to the main body 2 in the axial direction. Preferably, the closing cover is fixed to the main body 2 by screws with a bushing or self-tapping screws.

According to a preferred embodiment, the electric motor group 60 comprises an electric board housed on the closing cover 10. The electric board is electrically connected to the vehicle control unit via electronic connections integrated on the closing cover 10.

According to the invention, the component 4 and the filter group 3 respectively comprise a locking crown 510 and a locking ring 310 which are specially shaped to fit each other.

Furthermore, again according to the invention, the blowby filter assembly 1 comprises a locking insert 7 which can be inserted radially relative to the X-X axis via a locking crown 510 and a locking ring 310 to perform mutual locking of the filter group 3 to the component 4.

In other words, the component 4 and the filter group 3 are rotationally connected to each other via the insert 7 .

In other words, the engagement of insert 7 between locking crown 510 and locking ring 310 defines an "integral" coupling between the two components, so that control member 4 and filter group 3 are mechanically ("integrally") connected to rotate in unison (or synchronously).

According to a preferred embodiment, the support and control member 4 comprises a shaft 5 .

Such a shaft 5 is a hollow body extending along the X-X axis and is particularly designed to be operatively connected to the filter group 3 and the control drive 6.

Preferably, the shaft 5 is a hollow body constructed as a single component.

According to an optional embodiment, the shaft is a hollow body composed of two or more parts, which are reversibly or irreversibly mechanically connected to each other (for example: by welding, mechanical connectors, screws or the like) to form a single component, the constituent parts of which rotate synchronously according to the instructions of the control drive 6.

The shaft 5 actually comprises a control part 56 coupled to the control drive 6 and a filter part 53 coupled to the filter group 3.

The shaft 5 actually comprises a control part 56 which is engaged to the control drive 6 and a filter part 53 on which the filter group 3 is accommodated.

Preferably, the rotor 61 is housed on the control part 56. Specifically, the rotor 61 and the filter group 3 are integrally mounted on the shaft 5, respectively, and on the control part 56 and the filter part 53, respectively, in such a way that the controlled rotation of the rotor 61 corresponds to the rotation of the shaft 5 and thus the filter group 3. Specifically, in this specification, "integrally" means that the control drive 6 and the filter group 3 are mechanically connected to the shaft 5 to rotate in unison (or synchronously).

Therefore, according to a preferred embodiment, a locking crown 510 is configured on said shaft 5 .

According to a preferred embodiment, the filter group 3 is particularly shaped to house said locking crown 510 .

Preferably, the locking crown 510 is positioned radially distal to the X-X axis, and the locking ring 310 is positioned in a complementary manner to engage and accommodate said locking crown 510.

Thus, preferably, as shown in the figures provided by way of example, the insert 7 radially passes first through the locking ring 310 and then through the locking crown 510 .

According to an alternative embodiment, the locking crown 510 is positioned radially distal to the X-X axis, and the locking ring 310 is positioned in a complementary manner to engage said locking crown 510 and keep said locking crown 510 housed inside.

Therefore, preferably, in such a preferred embodiment, the insert 7 radially passes first through the locking crown 310 and then through the locking ring 310 .

According to a preferred embodiment, the locking crown 510 comprises a crown window 511 and the locking ring 310 comprises a ring window 311. The insert 7 is particularly shaped so as to extend through said windows (positioned in angular alignment with each other).

According to a preferred embodiment, the locking insert 7 is snap-blockable.

Preferably, the locking insert 7 is snap-lockable to the locking crown 510 .

According to a preferred embodiment, the locking insert 7 comprises at least two resiliently curved teeth 71 adapted to engage the crown window wall 511 .

Preferably, the elastically bent teeth 71 are mutually arranged so as to be located and act in two axially opposite directions to each other. Thus each tooth operates in each direction parallel to the X-X axis.

An exemplary embodiment of an insert of this type is shown in FIGS. 2 , 3 and 3 a .

In other embodiments, the locking insert 7 can be screw-locked, and the locking insert 7 includes a dedicated threaded insertion portion 72 and a locking portion 73 adjacent thereto.

Preferably, the threaded insert portion 72 can be screwed to a threaded wall defining the annular window 311. Preferably, a locking portion 73 axially adjacent to the threaded insert portion 72 extends in length through the crown window 311.

According to a preferred embodiment, the insert 7 comprises a shoulder between the threaded insert portion 72 and the locking portion 73. Preferably, the shoulder thereby acts as an end stop for tightening the insert. In other words, preferably, the shoulder defines the tightening stop of the insert and thereby the associated tightening torque.

According to some embodiments, the blow-by gas filter assembly 1 includes a plurality of locking inserts 7 that are preferably positioned evenly spaced angularly from one another.

According to a preferred embodiment, the filter group 3 sealingly engages the component 4 , preferably the shaft 5 , in two different axial sealing areas.

Preferably, the two sealing areas are close to the first filter plate 31 and the second filter plate 32 .

According to a preferred embodiment, the filter group 3 comprises a first gasket 315 and a second gasket 325 suitable for engaging with the shaft 5 .

According to a preferred embodiment, the shaft 5 comprises an air slit 500 , axially positioned between the two sealing areas. Said air slit 500 is suitable for placing the air channel 50 and the central chamber 300 in fluid communication.

According to a preferred embodiment, there are a plurality of slits 500 and they are positioned equidistantly and angularly from each other.

As shown in the drawings, according to a preferred embodiment, the filter portion 53 comprises an air passage 50 therein, preferably an outlet for the filtered blow-by gases, in which outflow of said filtered blow-by gases takes place towards the outlet mouth 22. In yet other words, the shaft 5 is a hollow body, the cavity of which at least partially forms the air passage 50 for the filtered blow-by gases.

In other words, the air passage 50 connects the clean side of the filter group 3 to the outlet nozzle 22. In yet other words, the blowby gas that has been subjected to the filtering operation flows out into the air passage 50.

Preferably, the air channel 50 fluidly connects the central chamber 300 of the filter group 3 to the outlet nozzle 22 .

According to a preferred embodiment, the filter portion 53 is fluidly connected to the central chamber 300 and the outlet nozzle 22 to allow the filtered blowby gas to flow out.

Preferably, the shaft 5 comprises a channel outlet 522 which fluidly connects the interior of the air channel 50 and the outlet nozzle 22. Preferably, the channel outlet 522 is positioned at an axial end of the shaft 5. Preferably, the channel outlet 522 is positioned at the outlet nozzle 22. Preferably, the channel outlet 522 is placed on the shaft 5 at the end of the filter section 53. Preferably, the channel outlet 522 is positioned on the shaft 5 at an axial end of the filter section 53 away from the control section 56. Preferably, the channel outlet 522 is obtained on the control section 56. Preferably, the channel outlet 522 is placed on the shaft 5 at an axial end of the control section 56. Preferably, the channel outlet 522 is positioned on the control section 56 of the shaft 5 in an intermediate axial position close to the filter group 3.

According to a preferred embodiment, the blow-by gas filter assembly 1 comprises a first support bearing 8 keyed to the shaft 5 .

According to a preferred embodiment, the blow-by gas filter assembly 1 comprises a second bearing 9 for support, and the second bearing 9 may be keyed onto the shaft 5 .

Preferably, the shaft 5 is positioned along the X-X axis by means of the first bearing 8 and the second bearing 9. Preferably, the shaft 5 is aligned with the X-X axis by means of the first bearing 8 and the second bearing 9.

The invention does not limit the shape or type of the first and second bearings.Preferably, the term "bearing" refers to a sliding bearing, a ball bearing or a bushing.

According to a preferred embodiment, the first bearing 8 tightly closes the filter chamber 20. Preferably, the first support bearing 7 engages with an outlet edge 220 defining the outlet mouth 22.

According to a preferred embodiment, the first bearing 8 may be positioned on the filter portion 53 in an axial position close to the filter group 3 and away from the control drive 6 .

According to a preferred embodiment, the second bearing 9 can be positioned on the control portion 56 .

According to a preferred embodiment, the control portion 56 of the shaft 5 is also hollow.

According to a preferred embodiment, the shaft 5 is made of thermoplastic material obtained by means of a single moulding operation.

Preferably, the shaft 5 is made of polyphenylene sulfide (PPS).

Preferably, the shaft 5 is made of a polyphenylene sulfide (PPS) type material.

Preferably, the shaft 5 is made of a polyphenylene sulfide (PPS)-based material reinforced with glass fiber (PPS+GF15, PPS+GF30, PPS+GF40).

Preferably, the shaft 5 is made of nylon-based material (PA, PA 6, PA 6.6 or a mixture thereof).

Preferably, the shaft 5 is made of a nylon-based material reinforced with glass fiber (PA+GF, PA 6.6+GF35, PA 6+PA 6.6+GF 35).

Preferably, the shaft 5 is made of a material comprising a polyamide-based blend, such as PPA.

According to a preferred embodiment, the shaft 5 is made of metal. Preferably, the shaft 5 is made of an aluminum alloy.

Originally, the blow-by filter assembly of the present invention broadly satisfies the objects of the present invention by presenting itself in a simple form and with all the above required simple assembly and disassembly operations.

Advantageously, the engagement between the component and the filter group is defined and secure.

Advantageously, the risk of the component and the filter group becoming detached from one another, for example due to damage or malfunction, is largely excluded.

Advantageously, the member is a multifunctional component. Advantageously, the blow-by gas flows through the support and control member. Advantageously, the filter group is controlled in rotation by the support and control member.

Advantageously, in a preferred embodiment, the support and control member comprises a shaft that is hollow or at least partially constructed in a hollow shape, reducing the weight of the filter assembly, the costs associated with the operation of the filter assembly, and the mechanical pressure on the device providing for keeping the filter assembly rotating.

Advantageously, the filter group is simply and securely secured to/removed from the component, thereby facilitating assembly and maintenance of the filter assembly.

Advantageously, the assembly of the filter group and the control member can be realized uniquely, ensuring the installation of the original box during periodic maintenance operations of the vehicle.

Advantageously, the engagement between the filter group and the control member is achieved by means of an insert, which thereby transmits sufficient torque between the control member and the filter group.

Advantageously, engagement between filter groups is simple and intuitive and allows for reduced assembly time of the filter assembly and reduced maintenance times of the filters.

Advantageously, each engagement surface provided between the filter group and the control member is formed/integrated only on the respective component, thereby reducing the production costs of the assembly and/or the filter group.

Advantageously, the insert performs a dual function: locking the mutual axial position between the filter group and the control member, and coupling in rotation said components so as to mechanically integrate them for synchronous rotation.

Advantageously, the engagement between the filter group and the control member is achieved by an insert, which allows the engagement surface between the filter group and the control member to be simplified, thereby simplifying the associated production equipment (such as molds), reducing costs.

It is obvious that those skilled in the art can make modifications to the blowby gas filter assembly to meet the requirements that vary depending on the situation, and all modifications included in the scope of protection are defined by the following claims.

List of reference numerals:

1 Blow-by filter assembly

2 Main body

20 Filter chamber

21. Import nozzle

22 Exit Mouth

220 Exit Edge

25 Component opening

3 Filter Groups

30 Filter Media

31 First filter plate

32 Second filter plate

310 Locking ring

311 Ring Window

315, 325 washers

318, 328 through opening

33 Central Structure

34 External structure

300 Central Chamber

4 Control components

5 Axis

50 Air channel

500 Air Slit

53 Filter Section

56 Control Section

500 Air Slit

510 Locking crown

511 Crown Window

6 Control drive

60 Electric Motor Set

61 Rotor

62 Stator

7 Locking insert

71 Elastic bending teeth

72 Threaded insert

73 Locking part

8. First bearing

9 Second bearing

10 Closing cover

X-X axis of rotation.

Claims (17)

1. A blow-by gas filter assembly (1) capable of being fluidly connected to a crankcase ventilation circuit of an internal combustion engine to receive blow-by gas and filter suspended particles contained therein, wherein the blow-by gas filter assembly (1) has an axis (X-X) and comprises: - a filter group (3) extending along the axis (X-X), having a hollow cylindrical shape and having a central chamber (300) which can be radially penetrated by the blow-by gases; - a support and control member (4) engageable to the filter group (3) and suitable for supporting the filter group in an axial position along an axis (X-X) and for controlling the rotation of the filter group about said axis (X-X) in order to perform a filtering operation; wherein the support and control member (4) and the filter group (3) respectively comprise a locking crown (510) and a locking ring (310), wherein the locking crown (510) and the locking ring (310) are formed outside the central chamber (300) to fit each other; The blowby filter assembly (1) comprises a locking insert (7) which can be radially inserted relative to the axis (X-X) via the locking crown (510) and the locking ring (310) to perform mutual locking of the filter group (3) to the support and control member (4). 2. The blow-by gas filter assembly (1) according to claim 1, characterized in that the central chamber (300) can be radially penetrated by blow-by gas from the outside to the inside. 3. The blow-by gas filter assembly (1) according to claim 1 is characterized in that the locking crown (510) is positioned radially away from the axis (X-X), and the locking ring (310) is positioned in a complementary manner to accommodate the locking crown (510). 4. The blowby gas filter assembly (1) according to any one of claims 1 to 3, characterized in that the locking crown (510) includes a crown window (511), the locking ring (310) includes a ring window (311), and the locking insert (7) extends through the ring window (311). 5. The blowby gas filter assembly (1) according to any one of claims 1-3, characterized in that the locking insert (7) can be snap-locked to the locking crown (510) and/or in the locking ring (310). 6. The blow-by gas filter assembly (1) according to claim 4, characterized in that the locking insert (7) comprises at least two elastically bent teeth (71) suitable for engaging with the wall of the crown window (511). 7. The blow-by gas filter assembly (1) according to claim 4, characterized in that the locking insert (7) is capable of being screw-locked, comprising a dedicated threaded insert portion (72) and a locking portion (73) axially adjacent thereto. 8. The blow-by gas filter assembly (1) according to claim 7 is characterized in that the threaded insert portion (72) can be tightened to the threaded wall defining the annular window (311), wherein the locking portion (73) extends in length through the crown window (511). 9. The blow-by gas filter assembly (1) according to any one of claims 1 to 3, characterized in that it comprises a plurality of locking inserts (7). 10. The blow-by gas filter assembly (1) according to claim 9, characterized in that the plurality of locking inserts (7) are positioned angularly evenly spaced apart from each other. 11. The blowby gas filter assembly (1) according to any one of claims 1 to 3, characterized in that the support and control member (4) includes a shaft (5), and the shaft (5) extends along the axis (X-X) in the central chamber (300), wherein the shaft (5) includes a filter part (53) and a control part (56), the filter group (3) is mounted on the filter part (53), and the control part (56) is engaged with a control drive (6) included in the support and control member (4), and is suitable for producing a rotational control effect, wherein the locking crown (510) is obtained on the shaft (5). 12. Blow-by gas filter assembly (1) according to claim 11, characterized in that the locking crown (510) is obtained on the filter part (53). 13. The blowby filter assembly (1) according to claim 11 is characterized in that the filter group (3) sealingly engages the shaft (5) in two different axial sealing areas, wherein the shaft (5) includes an air slit (500) axially positioned between the two sealing areas, and the air slit (500) is suitable for fluidly connecting the air channel (50) and the central chamber (300). 14. The blow-by gas filter assembly (1) according to claim 9, characterized in that the filter group (3) comprises a first sealing gasket (315) and a second sealing gasket (325). 15. The blowby filter assembly (1) according to any one of claims 1 to 3, characterized in that the filter group (3) includes a filter medium (30), a first filter plate (31) and a second filter plate (32), the first filter plate (31) and the second filter plate (32) are each positioned at the end of the filter medium (30), wherein the locking ring (310) is configured to be on the first filter plate (31) on the opposite side of the side engaged with the filter medium (30). 16. The blow-by gas filter assembly (1) according to claim 11, characterized in that the support and control member (4) further comprises a control drive (6), and the control drive (6) is suitable for controlling the rotation of the filter group (3). 17. The blowby filter assembly (1) according to claim 16, characterized in that the control drive (6) includes an electric motor group (60), the electric motor group (60) includes a rotor (61) and a stator (62), wherein the rotor (61) is coupled to the control portion (56) of the shaft (5).