CN213510955U

CN213510955U - Air filter assembly and engine air inlet system

Info

Publication number: CN213510955U
Application number: CN202022194126.0U
Authority: CN
Inventors: 刘伦伦; 刘俊杰; 汤志军; 彭博; 于盛通; 谢永胜
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-22
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses an empty filter assembly and engine air intake system, wherein, empty filter assembly includes the barrel and is located the inboard main filter core of barrel, the circumference lateral wall of barrel has been seted up and has been supplied the air inlet that main filter core passes through, air inlet detachably is connected with inlet structure and/or apron. When needing the maintenance, only need with the air inlet structure or the apron dismantlement of barrel side, then, with main filter core follow air inlet take out can. It is thus clear that this scheme is through seting up the air inlet in the side of barrel, makes main filter core can follow the barrel side and takes out, need not to reserve very big extraction space at the filter core axial, consequently, this scheme can install longer main filter core in the barrel to can improve the dust holding capacity of height filter, extension filter core maintenance cycle.

Description

Air filter assembly and engine air inlet system

Technical Field

The utility model relates to the technical field of engines, especially, relate to an air filter assembly and engine air intake system.

Background

The arrangement space of the air filters in the air inlet system of some existing V-shaped engines is small, four traditional cylinder type air filters need to be arranged, the filter element is drawn backwards during maintenance,

the existing air inlet system of some V-shaped engines needs to arrange four traditional cylinder type air filters, the arrangement space of the reserved air filter is often small, so that the air filter is inconvenient to draw a filter element backwards during maintenance, and the traditional filter element needs to be completely drawn out of a cylinder body for maintenance, so that a large filter element drawing space needs to be reserved; and reserving sufficient filter element extraction space can make empty filter arrange the restriction again, and empty filter can not be done too big, and then leads to empty filter to hold the ash volume little, and the maintenance cycle is short.

Therefore, how to arrange the air filter reasonably and prolong the maintenance period is a technical problem to be solved by the technical personnel in the field at present.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an empty filter assembly, this empty filter assembly structural arrangement is reasonable, and the extraction maintenance of the filter core of being convenient for can improve the dust holding capacity of empty filter, prolongs the maintenance cycle. Another object of the present invention is to provide an engine air intake system including the above air filter assembly.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an empty filter assembly, includes the barrel and is located the inboard main filter core of barrel, the air inlet that can supply main filter core passes through is seted up to the circumference lateral wall of barrel, air inlet detachably is connected with air inlet structure and/or apron.

Preferably, the end of the cylinder is provided with an air outlet communicated with the main filter element.

Preferably, two main filter cores are arranged in the barrel along the axial direction, two ends of the barrel are respectively provided with one air outlet and two disassembly and assembly spaces are reserved between the main filter cores, two ends of the inner side of the barrel are respectively provided with a filter core installation structure which is used for being matched with the main filter cores in an insertion and connection mode along the axial direction, and the filter core installation structure is arranged along the axial length of the barrel which is less than or equal to the axial length of the barrel which is arranged along the axial direction of the barrel.

Preferably, a filter element limiting structure is arranged in the cylinder body and used for limiting the main filter element to axially move and/or circumferentially rotate relative to the cylinder body.

Preferably, the filter element limiting structure is detachably arranged on the limiting block in the dismounting space, and two ends of the limiting block are respectively abutted to the main filter elements at the two ends.

Preferably, the air intake structure is a pre-filter module.

Preferably, the pre-filtering module is provided with a plurality of straight-through cyclone tubes, and the lower part of the pre-filtering module is provided with a dust collecting cavity and a dust discharging valve.

Preferably, the pre-filter module is connected to the air inlet by a snap fit.

The utility model provides an air filter assembly, include the barrel and be located the inboard main filter core of barrel, the circumference lateral wall of barrel has been seted up and has been supplied the air inlet that main filter core passes through, air inlet detachably is connected with inlet structure and/or apron. When needing the maintenance, only need with the air inlet structure or the apron dismantlement of barrel side, then, with main filter core follow air inlet take out can. It is thus clear that this scheme is through seting up the air inlet in the side of barrel, makes main filter core can follow the barrel side and takes out, need not to reserve very big extraction space at the filter core axial, consequently, this scheme can install longer main filter core in the barrel to can improve the dust holding capacity of height filter, extension filter core maintenance cycle.

The utility model also provides an engine air intake system of including above-mentioned empty filter assembly. The derivation process of the beneficial effect of the engine intake system is substantially similar to the derivation process of the beneficial effect brought by the air filter assembly, and therefore, the description is omitted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of a pre-filtering module and a barrel in a separated state according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an internal structure of an air filter assembly according to an embodiment of the present invention;

FIG. 3 is a side view of an air filter assembly in an embodiment of the present invention;

fig. 4 is a schematic view of the installation structure of the main filter element and the cylinder in the embodiment of the present invention.

The meaning of the respective reference numerals in fig. 1 to 4 is as follows:

1-cylinder, 2-main filter element, 3-limiting block, 4-disassembly and assembly space, 5-air inlet, 6-air outlet, 7-prefilter module, 8-straight-through cyclone tube, 9-dust exhaust valve and 10-filter element installation structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, fig. 1 is a schematic view illustrating a pre-filtering module and a barrel in a separated state according to an embodiment of the present invention; fig. 2 is a schematic diagram of an internal structure of an air filter assembly according to an embodiment of the present invention; FIG. 3 is a side view of an air filter assembly in an embodiment of the present invention; fig. 4 is a schematic view of a main filter element and a cylinder installation structure in an embodiment of the present invention, and is a sectional view taken along the direction a-a in fig. 3.

The utility model provides an empty filter assembly, including barrel 1 with be located 1 inboard main filter core 2 of barrel, the air inlet 5 that can supply main filter core 2 to pass through is seted up to the circumference lateral wall of barrel 1, and 5 detachably of air inlet are connected with inlet structure and/or apron. When needing maintenance, only need with the air inlet structure or the apron dismantlement of barrel 1 side, then, take out main filter core 2 can from air inlet 5. It is thus clear that this scheme is through seting up air inlet 5 in the side of barrel 1, makes main filter core 2 can follow barrel 1 side and takes out, need not to reserve very big extraction space in the filter core axial, consequently, this scheme can install longer main filter core 2 in barrel 1 to can improve the ash capacity of height filter, extension filter core maintenance cycle.

It should be noted that, the barrel 1 in this embodiment is further provided with an air outlet 6 communicated with the main filter element 2, specifically, the air outlet 6 may be provided at an end portion or a circumferential side wall of the barrel 1, and preferably, the end portion of the barrel 1 in this embodiment is provided with the air outlet 6 communicated with the main filter element 2, as shown in fig. 1, fig. 2 and fig. 4.

It should be noted that, in this scheme, one or more main filter elements 2 can be arranged in one barrel 1, for the convenience of installation and arrangement, preferably, two main filter elements 2 are arranged in the barrel 1 along the axial direction, two ends of the barrel 1 are respectively provided with one air outlet 6, an assembly and disassembly space 4 is reserved between the two main filter elements 2, two ends of the inner side of the barrel 1 are respectively provided with a filter element installation structure 10 which is used for being in insertion fit with the main filter elements 2 along the axial direction, and the length of the filter element installation structure 10 along the axial direction of the barrel 1 is less than or equal to the length of the assembly and disassembly space 4 along the axial direction. The filter element installation structure 10 may be specifically designed according to the structure of the main filter element 2, for example, designed as a ring-shaped installation structure, or a cylindrical installation structure, or an installation groove structure provided at an end of the cylinder 1, or the like. As shown in fig. 4, preferably, the filter element mounting structure 10 in this embodiment is an annular mounting structure fixed inside the cylinder 1, and the main filter element 2 is a cylindrical filter element structure and can be inserted into the annular mounting structure along the axial direction, and a reliable sealing connection in the axial direction, the circumferential direction, and the radial direction is achieved between the main filter element 2 and the annular mounting structure, so as to prevent gas from directly flowing out from the gas outlet 6 without passing through the main filter element 2. This scheme is designed filter core mounting structure 10 for the axial length of less than or equal to dismouting space 4 along 1 axial length of barrel along 1 axial of barrel, so sets up, when changing the maintenance filter core, only needs to pull out filter core mounting structure 10 along 1 axial of barrel with main filter core 2, then take out main filter core 2 can from 1 side of barrel. This scheme can be designed filter core mounting structure 10 for being far less than main filter core 2's axial length along barrel 1 axial length, for example less than or equal to main filter core 2 axial length's 1/4, simultaneously, with the axial length that is less than main filter core 2 of the design of barrel 1 axial length along dismouting space 4, just so can further utilize the space in the barrel 1 to arrange main filter core 2, improve space utilization.

As shown in fig. 4, preferably, a filter element limiting structure is arranged in the cylinder 1, and the filter element limiting structure is used for limiting the axial movement and/or the circumferential rotation of the main filter element 2 relative to the cylinder 1, so as to prevent the main filter element 2 from moving relative to the cylinder 1, and improve the operational reliability of the air filter assembly.

As shown in fig. 4, preferably, the filter element limiting structure is a limiting block 3 detachably disposed in the dismounting space 4, and two ends of the limiting block 3 abut against the main filter elements 2 at the two ends respectively. This kind of filter core limit structure is convenient for arrange, and easily dismouting is specific, and 3 accessible of stopper prevent that two main filter cores 2 from taking place to remove along the axial with the axial butt effect of

main filter core

2, and 3 accessible of stopper and 2 peripheries of main filter core adopt the spacing mode of draw-in groove to prevent that main filter core 2 from taking place to rotate relative barrel 1. Of course, above-mentioned filter core limit structure can also design for baffle structure, buckle structure, pin structure etc. and the above-mentioned limiting displacement of homoenergetic realization, and this paper is no longer repeated.

It should be noted that, the utility model discloses in can be at 5 installation apron of air inlet of barrel 1 side, also can install air inlet structure, wherein, the apron only plays sealed guard action, and air inlet structure can design for having the modular structure of functions such as air current direction, filtration. As shown in fig. 1 and 2, preferably, an air inlet structure is installed at the air inlet 5 in the present scheme, and the air inlet structure is a pre-filtering module 7. The pre-filtering module 7 has the functions of airflow guiding and pre-filtering at the same time, and can realize high-efficiency filtering of the air filter assembly by performing operations such as pre-separating dust from dirty air. Those skilled in the art may adapt the shape of existing pre-filter air intake modules to be removably mounted to the air intake 5.

Preferably, the pre-filter module 7 is provided with a plurality of straight cyclone tubes 8, and the lower part of the pre-filter module 7 is provided with a dust collection chamber and a dust discharge valve 9. The pre-filter module 7 may be detachably mounted to the air inlet 5 of the cartridge 1 in various ways, such as by screw mounting, or by snap mounting, etc. Preferably, the pre-filter module 7 in this solution is connected to the air inlet 5 by means of a snap connection.

Referring to fig. 2, the air filtering operation of the air filter assembly will be described as follows: the arrows in fig. 2 indicate the flow path of air, the external dirty air to be filtered enters the pre-filter module 7 from the inlet of the straight-through cyclone tube 8, and generates a cyclone motion under the guidance of the inlet cyclone blades, and the dust falls into the dust collection chamber at the lower part of the pre-filter module 7 after being centrifugally separated, and is finally discharged by the dust discharge valve 9; the pre-filtered air flows downstream from the middle pipe and passes through the side wall of the main filter element 2 for fine filtration, and becomes clean air after fine filtration after entering the main filter element 2; finally, the clean air is discharged from the air outlets 6 at the two ends of the cylinder 1 respectively and finally enters the engine.

The utility model discloses following beneficial effect has:

1) the scheme cancels the rain-proof cap structure of the original air filter, reduces the cost, adopts a side air inlet mode, and exhausts air at two ends of the same cylinder body 1, so that the air filter has more compact structure and attractive appearance;

2) the main filter element 2 in the scheme can be taken out from the side surface of the cylinder body 1, the main filter element 2 can be taken down only by reserving the dismounting space 4 which is larger than the filter element mounting structure 10, the requirement on the extraction space is small, the maintenance is convenient, and meanwhile, the main filter element 2 can be lengthened, so that the maintenance period of the main filter element 2 is prolonged;

3) according to the scheme, the pre-filtering module 7 is additionally arranged, so that air can be pre-filtered, the maintenance period of the main filter element 2 can be prolonged, and the air pre-filtering device is suitable for a severe dust environment;

4) the air filter assembly that this scheme provided compact structure, the filter core maintenance is convenient, and filtration efficiency is high, and the dust holding capacity is big.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides an empty filter assembly, its characterized in that includes barrel (1) and is located main filter core (2) of barrel (1) inboard, can supply air inlet (5) that main filter core (2) passed through have been seted up to the circumference lateral wall of barrel (1), air inlet (5) detachably are connected with air inlet structure and/or apron.

2. An air filter assembly according to claim 1, wherein the end of the cartridge (1) is provided with an air outlet (6) communicating with the main filter element (2).

3. The air filter assembly according to claim 2, wherein two main filter elements (2) are axially arranged in the cylinder (1), one air outlet (6) is respectively arranged at two ends of the cylinder (1), a disassembly and assembly space (4) is reserved between the two main filter elements (2), filter element installation structures (10) which are matched with the main filter elements (2) in an insertion manner along the axial direction are respectively arranged at two ends of the inner side of the cylinder (1), and the length of the filter element installation structures (10) along the axial direction of the cylinder (1) is less than or equal to the length of the disassembly and assembly space (4) along the axial direction of the cylinder (1).

4. An air filter assembly according to claim 3, wherein a filter element limiting structure is arranged in the cylinder (1) and is used for limiting the axial movement and/or the circumferential rotation of the main filter element (2) relative to the cylinder (1).

5. The air filter assembly according to claim 4, wherein the filter element limiting structure is a limiting block (3) detachably disposed in the disassembling and assembling space (4), and two ends of the limiting block (3) are respectively abutted to the main filter elements (2) at the two ends.

6. The air filter assembly according to any one of claims 1 to 5, wherein the air intake structure is a pre-filter module (7).

7. An air filter assembly according to claim 6, wherein the pre-filter module (7) is provided with a plurality of straight cyclone tubes (8), and the lower part of the pre-filter module (7) is provided with a dust collection chamber and a dust discharge valve (9).

8. Air filter assembly according to claim 6, characterised in that the pre-filter module (7) is connected to the air inlet (5) by means of a snap-in connection.

9. An engine air intake system, comprising an air filter assembly as claimed in any one of claims 1 to 8.