CN119712363B - An oil bath air filter and filter equipment - Google Patents

Abstract

The application provides an oil bath type air filter and filter equipment, and relates to the technical field of air filters. The oil bath type air filter comprises an outer shell subassembly and a pre-filter element subassembly, wherein the outer shell subassembly comprises an upper shell and a lower shell, a cavity is formed between the upper shell and the lower shell, the inner shell subassembly and the pre-filter element subassembly are both arranged in the cavity, the inner shell subassembly is positioned on the upper side of the pre-filter element subassembly, the inner shell subassembly comprises a guide cover and a filter element supporting shell, the guide cover is used for separating moisture in air, the pre-filter element subassembly comprises a filter element frame, the guide cover, the filter element supporting shell and the filter element frame are sequentially communicated to form an air passage.

Description

Oil bath type air filter and filter equipment

Technical Field

The application relates to the technical field of air filters, in particular to an oil bath type air filter and filter equipment.

Background

Air cleaners are devices specifically designed to remove contaminants from air and are widely used in heavy vehicle ventilation systems to protect engines and other components. For heavy vehicles, the design of the air cleaner is complex, and a large prefilter device is provided in addition to the fine filter. Such a dual layer filtration system allows the vehicle to operate in a high dust concentration environment, effectively blocking a large amount of dust particles, thereby extending the maintenance and replacement cycle of the filter.

However, for heavy vehicles, such air cleaner designs should be primarily directed to the problem of high concentrations of dust, with limitations in regard to weather conditions. The air filter is mainly arranged on the chassis, when the vehicle runs in rainy and snowy days, air mixed with rain and snow enters the oil filter along with the pipeline, is doped with oil, causes early grinding of the engine, causes exceeding of the oil loss rate, causes pollution of the air filter, and reduces service life.

Disclosure of Invention

The application provides an oil bath type air filter and filter equipment, which are used for efficiently separating moisture in air which enters the filter and is entrained with rain and snow.

In a first aspect, the present application provides an oil bath air cleaner comprising an outer housing subassembly, an inner housing subassembly, and a pre-filter cartridge subassembly;

The inner shell subassembly and the prefilter subassembly are both arranged in the cavity, and the inner shell subassembly is positioned on the upper side of the prefilter subassembly;

the upper shell and the lower shell are in sealing connection through a first cross type sealing structure and a plurality of first sealing rings matched with the first cross type sealing structure;

The inner shell subassembly comprises a guide cover and a filter element supporting shell, wherein the guide cover is used for separating moisture in air, and the guide cover and the filter element supporting shell are in sealing connection through a second cross type sealing structure and a plurality of second sealing rings matched with the second cross type sealing structure;

the prefilter core subassembly includes filter core frame, kuppe, filter core support shell and filter core frame communicate in proper order, form the air passageway.

In one possible design, one side of the air guide sleeve is provided with a side water collecting disc;

the side water collecting disc comprises a baffle plate which is vertically arranged, a baffle plate structure which is obliquely arranged and a water collecting disc which is horizontally and annularly arranged, the bottom edge of the baffle plate structure is connected with the top edge of the baffle plate, and the bottom edge of the baffle plate is connected with the water collecting disc;

The water collecting disc is provided with a water outlet.

In one possible design, the lower housing includes a lower housing body, a boss, a square cavity, and a drain bag;

The boss is arranged on one side of the lower shell body, which is close to the water outlet, the square cavity is arranged on the boss, and the upper surface of the square cavity is lower than the upper surface of the lower shell body;

the square cavity is communicated with the drainage bag, and the water collected in the water collecting disc flows into the drainage bag through the water outlet and the square cavity.

In one possible design, the inner shell subassembly further comprises a draft tube;

The first end of the flow guide pipe is connected with the water outlet, and the second end of the flow guide pipe is lower than the upper surface of the square cavity;

The upper surface of square cavity is provided with the rubber seal pad.

In one possible design, the upper housing includes an upper housing body, an air inlet, and an air outlet;

The air inlet is arranged at one side of the top of the upper shell body and is used for guiding air to enter;

the air outlet is arranged at the top of the upper shell body and is used for discharging filtered air;

the baffle structure and the air inlet are coaxially arranged, and the structure of the baffle structure is a flanging design structure.

In one possible design, the upper housing further includes an oil fill port and a dipstick;

the oil filling port is arranged at one corner of the top of the upper shell body, and the oil dipstick is inserted into the cavity through the oil filling port.

In one possible design, the lower housing further includes a second housing flange, a plurality of snaps, a drain and a guard, and the upper housing further includes a first housing flange;

The first shell flanging is arranged on the lower surface of the upper shell body, the second shell flanging is arranged on the upper surface of the lower shell body, and the plurality of buckles are uniformly distributed on the lower shell body;

the first shell flanging and the second shell flanging are in sealing connection with each other through a first cross sealing structure 500, a plurality of first sealing rings and a plurality of buckles;

The drain mouth and the guard board are both arranged on the lower surface of the lower shell body, and the drain mouth is lower than the guard board.

In one possible design, the structure of the cartridge support housing is an arched mesh-like multi-layer structure, each layer of the cartridge support housing being for mounting a cartridge;

The inner shell subassembly further comprises a plurality of long screws;

the air guide sleeve and the filter element supporting shell are in sealing connection with each other through a second cross type sealing structure, a plurality of second sealing rings and a plurality of long screws.

In one possible design, the pre-filter sub-assembly further includes a wick assembly and a windage tray.

In a second aspect, the present application provides a filter apparatus comprising:

The oil bath air cleaner of the first aspect of the present disclosure, and a plurality of filter cartridges mounted in a cartridge support housing of the oil bath air cleaner.

The application provides an oil bath type air filter and filter equipment, wherein an outer shell subassembly comprises an upper shell and a lower shell, a cavity is formed between the upper shell and the lower shell, an inner shell subassembly and a prefilter core subassembly are arranged in the cavity, the inner shell subassembly is positioned on the upper side of the prefilter core subassembly, the upper shell and the lower shell are in sealing connection through a first cross type sealing structure and a plurality of first sealing rings matched with the first cross type sealing structure, the inner shell subassembly comprises a guide cover and a filter core supporting shell, the guide cover is used for separating moisture in air, the guide cover and the filter core supporting shell are in sealing connection through a second cross type sealing structure and a plurality of second sealing rings matched with the second cross type sealing structure, and the prefilter core subassembly comprises a filter core frame, and the guide cover, the filter core supporting shell and the filter core frame are sequentially communicated to form an air passage. The oil bath type air filter has the advantages that through the design of the inner shell subassembly and the outer shell subassembly, after air flow with water is filtered through the high-level air inlet channel and the oil filtering air inlet pipe, water is discharged through the design of the inner shell subassembly still under the action of gravity, dust and particulate matters in the air flow are filtered through the design of the prefilter subassembly, the filter element and the like, impurities in the air flow are removed, and good tightness is guaranteed through the sealing structure among the inner shell subassembly, the outer shell subassembly and the prefilter subassembly, so that all the entering air is filtered through the filter without bypassing unfiltered air into an engine.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a scenario of an oil bath type air cleaner according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an oil bath type air cleaner according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an internal structure of an oil bath type air cleaner according to an embodiment of the present application;

FIG. 4 is a cross-sectional view of the internal structure of an oil bath air cleaner according to an embodiment of the present application;

FIG. 5 is a top view of the upper housing structure of an oil bath air cleaner according to an embodiment of the present application;

FIG. 6 is an enlarged view of a part of the sealing structure of the upper and lower cases of the oil bath type air cleaner according to the embodiment of the present application;

Fig. 7 is a schematic diagram of a lower housing structure of an oil bath type air cleaner according to an embodiment of the present application;

Fig. 8 is a schematic diagram of a lower housing structure of an oil bath type air cleaner according to an embodiment of the present application.

Reference numerals:

100-oil bath type air filter, 500-heavy vehicle, 600-air;

200-an outer shell subassembly, 300-an inner shell subassembly, 400-a prefilter subassembly, 210-an upper shell, 220-a lower shell, 310-a guide cover, 320-a filter element supporting shell, 410-a filter element frame, 420-a wire assembly and 430-an oil baffle disc;

2101-an upper shell body, 2102-an air inlet, 2103-an air outlet, 2104-an oil filling port, 2105-an oil dipstick, 2107-a first shell flanging, 2201-a lower shell body, 2202-a boss, 2203-a square cavity, 2204-a water draining bag, 2205-a water draining valve, 2206-a second shell flanging, 2207-a water draining nozzle, 2208-a guard plate, 2209-a rubber sealing gasket, 230-a buckle, 250-a first sealing ring, 251-a round rubber sealing ring and 260-a U-shaped sealing ring;

330-side water collecting disc, 340-partition board, 350-baffle structure, 3301-water collecting disc, 3302-water outlet, 360-guide pipe, 370-long screw, 380-second cross sealing structure, 390-second sealing ring and 3303-reinforcing rib.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.

In embodiments of the present application, the words "first," "second," and the like are used to distinguish between identical or similar items that have substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ. It should be noted that, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion. In the embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more.

The "at the time of the" of the embodiment of the present application may be instantaneous when a certain situation occurs, or may be within a period of time after a certain situation occurs, which is not particularly limited. In addition, the oil bath type air filter provided by the embodiment of the application is only used as an example, and the oil bath type air filter can also comprise more or less contents.

In order to facilitate the clear description of the technical solutions of the embodiments of the present application, the following simply describes some terms and techniques involved in the embodiments of the present application:

The oil bath type air filter is an air filtering device which uses engine oil to catch and filter dust and particles in air. The equipment is a vertical cylinder container made of steel plates, and three parts, namely an outer interlayer, an inner interlayer and a straight cylinder section are divided into the barrel.

The shell subassembly is an external frame and a protection structure of the whole filter device, and plays a vital role in ensuring the normal operation of the filter, namely an outer interlayer of the oil bath type air filter.

The inner shell subassembly of the oil bath type air filter is a core part of the whole filter, is responsible for guiding air flow and effectively filtering dust and particulate matters in air through an oil layer, and realizes a water collecting and draining function by cooperation with the outer shell subassembly.

The prefilter core assembly is a straight section of the oil bath type air filter, and the prefilter core assembly mainly aims at filtering air in an oil bath and primarily capturing and removing larger particles.

With the development and progress of internal combustion engines, there is a growing awareness of the need for some form of air filtration device to protect the engine from dust and other impurities. Oil bath air cleaners have come into play and find application, which take advantage of the oil-adhering dust particles, capture contaminants by passing air through a layer of oil, and are used in heavy vehicle ventilation systems.

In an air filtering system of a heavy vehicle, a large prefilter device is generally connected in series with a fine filter provided with common filter paper in a pipeline of an air inlet system, so that the maintenance period of the fine filter is prolonged in an operation area with too high dust concentration, and the filter element is prevented from being maintained too frequently on the premise of ensuring the service life of an engine.

Considering that heavy vehicles mostly operate in severe environments or specific industrial areas, oil bath type air cleaners thereof are required to be able to handle a large amount of dust without frequent replacement of filter cartridges and to be stably operated even under high or low temperature conditions. The oil bath type air filter is mostly not located on the chassis of the vehicle and is located at the lowest position of the air inlet system, so that when the vehicle runs in rainy and snowy weather, air is carried with rain and snow to enter the pipeline through the high-position air inlet port of the air inlet system, and even if the pipeline is provided with a drainage device along the pipeline, a lot of water still enters the oil filter under the wrapping action of air flow, and is mixed with oil. With the accumulation of water, the air inlet resistance is increased, so that the engine is early ground, the oil loss rate exceeds the standard, the pollution of paper filtration in the air filter is caused, and the service life is reduced.

In the prior art, by arranging a water separation structure at the air inlet of the air filter, the air inlet of the oil filter is generally designed into double layers, so that water from the wall surface is left between the double layers when air flows through the oil filter, and is discharged by combining a water outlet preset at the outer side of the air inlet, and the structure generally combines the functions of a water collecting and discharging structure preset at the air inlet and the air outlet of the high-level air inlet. The structure can ensure higher water removal efficiency under certain flow, but when the air flow is too high, the air flow speed is obviously improved, the water quantity carried by the air flow is also improved, and the water-oil separation efficiency is lower. Such structures have low versatility and limited effective collection and drainage of moisture.

In order to solve the problems, the oil bath type air filter is structurally designed to realize water and oil separation.

Furthermore, the oil bath type air filter should adopt a multi-layer structure design, so that good sealing performance of the oil bath type air filter is ensured, and dust and particles are prevented from entering other airflow pipelines.

Further, the oil bath type air cleaner should have a structural design which is not subject to the flow amount, and can achieve a large area of interception and collection of drainage.

Furthermore, the oil bath type air filter should have versatility, and can effectively collect and increase the water ratio of the drain water by the overall design of the outer shell subassembly, the inner shell subassembly and the prefilter subassembly without being affected by the gas flow rate and the flow rate.

Based on the above, the embodiment of the application provides an oil bath type air filter and filter equipment, which can be used in the technical field of air filters and aims to efficiently separate moisture in air which enters the filter and is entrained with rain and snow.

The following describes the technical scheme of the present application and how the technical scheme of the present application solves the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic view of a scenario of an oil bath type air cleaner according to an embodiment of the present application. It should be noted that fig. 1 is only an example of a scenario in which an embodiment of the present application may be applied to help those skilled in the art understand the technical content of the present application, but it does not mean that an embodiment of the present application may not be applied to other devices, systems, environments, or scenarios.

As shown in fig. 1, a schematic view of an oil bath air cleaner is shown, comprising an oil bath air cleaner 100, a heavy vehicle 500, and air 600.

The heavy vehicle 500 may be in a traveling state or a stopped state. The air 600 generally entrains rain and snow, moisture, dust, and particulate matter.

The oil bath air cleaner 100 is installed at the chassis of the heavy vehicle 500. Under the working condition of the heavy vehicle 500, air 600 enters the air inlet of the oil bath type air filter 100, the oil bath type air filter 100 starts to work, dust and particles are filtered through the combination of three structural designs of the outer shell subassembly, the inner shell subassembly and the pre-filter core subassembly, moisture in the air 600 is separated, and large-area throttling and drainage collection are realized from the inlet.

Fig. 2 is a schematic structural diagram of an oil bath type air cleaner according to an embodiment of the present application. Fig. 3 is a schematic diagram of an internal structure of an oil bath type air cleaner according to an embodiment of the present application.

The present embodiment describes the oil bath type air cleaner 100 in detail based on the scene of fig. 1. As shown in fig. 2 and 3, the oil bath air cleaner 100 includes an outer housing subassembly 200, an inner housing subassembly 300, and a pre-filter cartridge subassembly 400;

The outer shell subassembly 200 comprises an upper shell 210 and a lower shell 220, a cavity is formed between the upper shell 210 and the lower shell 220, the inner shell subassembly 300 and the prefilter subassembly 400 are both arranged in the cavity, and the inner shell subassembly 300 is positioned on the upper side of the prefilter subassembly 400;

The upper and lower cases 210 and 220 are hermetically connected by a first cross seal structure 500, and a plurality of first seal rings 250 matched with the first cross seal structure 500;

The inner shell subassembly 300 comprises a guide cover 310 and a filter element supporting shell 320, wherein the guide cover 310 is used for separating moisture in air, and the guide cover 310 and the filter element supporting shell 320 are in sealing connection through a second cross-shaped sealing structure 380 and a plurality of second sealing rings 390 matched with the second cross-shaped sealing structure 380;

The pre-cartridge subassembly 400 includes a cartridge housing 410, and the pod 310, cartridge support housing 320, and cartridge housing 410 are in communication in sequence, forming an air passageway.

Specifically, the oil bath air cleaner 100 includes a multi-layered structure, an outer housing subassembly 200, an inner housing subassembly 300, and a pre-filter cartridge subassembly 400, respectively.

The housing subassembly 200 includes an upper housing 210 and a lower housing 220. The upper housing 210 includes an upper housing body 2101, an air inlet 2102 and an air outlet 2103, the air inlet 2102 and the air outlet 2103 respectively guiding moisture-laden air into the filter and discharging the filtered air out of the filter. The upper housing 210 further comprises an oil filling port 2104, an oil dipstick 2105 and an oil plug, and is used for filling engine oil and checking the content of the engine oil in time so as to ensure the working efficiency of the oil bath type air filter.

The inner housing subassembly 300 includes a pod 310, a cartridge support housing 320. The pod 310 may be provided with holes sized to match the size of the intake 2102 and the outlet 2103 so that air within the intake 2102 and the outlet 2103 may not leak.

One side of the air guide sleeve 310 is provided with a baffle 340 and a side water collecting disc 330, the baffle 340 is arranged on one side close to the air guide sleeve 310, one side of the baffle 340 separates a water outlet from the wall surface of the shell, and the other side of the baffle 340 is uniformly distributed with reinforcing ribs 3303 on three parts of the air guide sleeve to be connected, so that an air outlet flow channel is reserved. The side water collecting tray 330 is integrally formed in a concave shape, and a water outlet 3302 is formed at the lowest point of the concave shape, and separated water is discharged through the water outlet 3302. The baffle structure 350 is arranged on one side of the air guide sleeve 310, which is close to the air inlet, the baffle structure 350 is obliquely arranged, the edge of the baffle structure 350 is provided with a downward flanging design, the cooperation of the baffle plates of the side water collecting tray is realized, the water separation efficiency is ensured, and the influence of initial resistance is considered. The inner housing subassembly 300 further includes a draft tube 360 for directing moisture exiting the water outlet 3302.

The edge of the contact part between the filter element supporting shell 320 and the air guide sleeve 310 is adapted, and the second cross type sealing structure 380, the second sealing rings 390 and the long screws 370 are in sealing connection, so that good sealing performance is ensured. The cartridge support housing 320 is constructed in an arcuate net-like multi-layer structure, and is serially secured to a plurality of long threaded rods 370.

The lower housing 220 includes a lower housing body 2201, a boss 2202, a square cavity 2203, and a drain bag 2204. A square cavity 2203 is installed above the boss 2202, and the lower side of the square cavity 2203 is communicated with the drain bag 2204 so as to form a water flow path, and moisture collected in the water collecting tray 3301 flows into the drain bag 2204 through the water outlet 3302 and the square cavity 2203. The lower housing 220 further includes a drain valve 2205 for draining or discharging oil.

The pre-filter cartridge subassembly 400 includes a cartridge housing 410, a wick assembly 420 and a windage tray 430 for removing larger particulates from the intake air stream.

The application provides an oil bath type air filter, which comprises an upper shell and a lower shell, wherein a cavity is formed between the upper shell and the lower shell, an inner shell subassembly and a prefilter subassembly are both arranged in the cavity, the inner shell subassembly is positioned on the upper side of the prefilter subassembly, the upper shell and the lower shell are in sealing connection through a first cross type sealing structure and a plurality of first sealing rings matched with the first cross type sealing structure, the inner shell subassembly comprises a guide cover and a filter core supporting shell, the guide cover is used for separating moisture in air, the guide cover and the filter core supporting shell are in sealing connection through a second cross type sealing structure and a plurality of second sealing rings matched with the second cross type sealing structure, and the prefilter subassembly comprises a filter core frame, the guide cover, the filter core supporting shell and the filter core frame are sequentially communicated to form an air passage. The oil bath type air filter has the advantages that through the design of the inner shell subassembly and the outer shell subassembly, after air flow with water is filtered through the high-level air inlet channel and the oil filtering air inlet pipe, water is discharged through the design of the inner shell subassembly still under the action of gravity, dust and particulate matters in the air flow are filtered through the design of the prefilter subassembly, the filter element and the like, impurities in the air flow are removed, and good tightness is guaranteed through the sealing structure among the inner shell subassembly, the outer shell subassembly and the prefilter subassembly, so that all the entering air is filtered through the filter without bypassing unfiltered air into an engine.

As shown in fig. 3, the structure of the oil bath type air cleaner is shown with the upper and lower case bodies removed.

In one possible design, one side of the pod 310 is provided with a side water collection tray 330;

The side water collecting tray 330 comprises a vertically arranged baffle 340, a obliquely arranged baffle structure 350 and a horizontally annular water collecting tray 3301, wherein the bottom edge of the baffle structure 350 is connected with the top edge of the baffle 340, and the bottom edge of the baffle 340 is connected with the water collecting tray 3301;

the water collecting tray 3301 is provided with a water outlet 3302.

Specifically, one side of the pod 310 is provided with a side water collecting tray 330. The side water collecting tray 330 includes a vertically arranged partition 340, a diagonally arranged baffle structure 350, and a horizontally annular arranged water collecting tray 3301.

The water collecting tray 3301 arranged horizontally and annularly is of an integrally concave shape, and the water outlet 3302 is arranged at the lowest point of the water collecting tray 3301.

The air inlet 2102 is provided with an incline at one side near the air guide cover 310Is provided, is a baffle structure 350. The side water collecting tray 330 is provided with a baffle 340 at a side close to the air guide cover 310, the height of the baffle is 65mm, and the baffle 340 is positioned to separate the water outlet 3302 at one side of the wall surface of the shell.

The bottom edge of the baffle structure 350 is connected to the top edge of the baffle 340 and the bottom edge of the baffle 340 is connected to the water collection tray 3301 to drain the collected water through the water outlet 3302 of the water collection tray 3301. The partition 340 is disposed obliquely to collect moisture.

The water collecting plate has the technical effects that the water is reliably discharged through the design of the concave shape and the water collecting plate at the lowest point, the water collecting plate is matched with the water collecting plate through the matching design among the water collecting plate, the partition plate and the baffle plate structure, and the influence of initial resistance is considered while the water separation efficiency is ensured.

Fig. 4 is a cross-sectional view of an internal structure of an oil bath type air cleaner according to an embodiment of the present application. Fig. 5 is a top view of an upper housing structure of an oil bath air filter according to an embodiment of the present application, fig. 6 is a partial enlarged view of an upper housing seal structure and a lower housing seal structure of the oil bath air filter according to an embodiment of the present application, fig. 7 is a schematic diagram of a lower housing structure of the oil bath air filter according to an embodiment of the present application, and fig. 8 is a schematic diagram of a lower housing structure of the oil bath air filter according to an embodiment of the present application.

As shown in fig. 7 and 8, the structural design of the lower housing is shown.

In one possible design, lower housing 220 includes lower housing body 2201, boss 2202, square cavity 2203, and drain bag 2204;

The boss 2202 is arranged on one side of the lower housing body 2201 close to the water outlet 3302, the square cavity 2203 is arranged on the boss 2202, and the upper surface of the square cavity 2203 is lower than the upper surface of the lower housing body 2201;

the square cavity 2203 communicates with the drain bag 2204, and moisture collected in the water collection tray 3301 flows into the drain bag 2204 through the water outlet 3302 and the square cavity 2203.

Specifically, as shown in fig. 4, the lower housing body 2201 is injection molded.

The lower housing 220 includes a lower housing body 2201, a boss 2202, a square cavity 2203, and a drain bag 2204.

The boss 2202 is provided inside the lower housing body 2201 and is located near a side wall surface of the intake port 2102, and the height of the boss 2202 is set to 63mm. A square cavity 2203 is provided on the boss 2202, and an upper surface of the square cavity 2203 is lower than an upper surface of the lower housing body 2201, that is, a length range of the square cavity 2203 is lower than a distance from the square cavity 2203 to the upper surface of the lower housing body 2201.

The square cavity 2203 communicates with the drain bag 2204 below so as to form a water flow path, and the water collected in the water collecting tray 3301 flows into the drain bag 2204 through the water outlet 3302 and the square cavity 2203.

In addition, a drain valve 2205 is disposed at the bottom of the lower housing 220, and the drain valve 2205 may be used for tightening by hand and securing tightness for draining water or oil without disassembling the housing, so as to facilitate maintenance work of the oil filter.

The technical effect that this embodiment provided is, through the connection between boss, square cavity and the drainage bag of lower casing, forms a water flow path, flows the water that the delivery port of water collector out, flows into the drainage bag through this water flow path.

In one possible design, the inner housing subassembly 300 further includes a draft tube 360;

the first end of the flow guide pipe 360 is connected with the water outlet 3302, and the second end of the flow guide pipe 360 is lower than the upper surface of the square cavity 2203;

the upper surface of the square cavity 2203 is provided with a rubber gasket 2209.

Specifically, as shown in fig. 3, the inner housing subassembly 300 further includes a flow guide 360, wherein a first end of the flow guide 360 is referred to as a head end, and a second end of the flow guide 360 is referred to as a tail end.

The first end of the flow guide tube 360 is connected to the water outlet 3302, and the water discharged from the water outlet 3302 can flow into the flow guide tube 360. The second end of the flow guide tube 360 is lower than the upper surface of the square cavity 2203, that is, the moisture discharged from the flow guide tube 360 can be discharged through the square cavity 2203.

The upper surface of square cavity 2203 is provided with rubber seal 2209, is oval hole in the middle of the rubber seal 2209, with the external diameter interference fit of honeycomb duct 360. Wherein, the area of the sealing gasket is larger than the outer dimension of the square cavity so as to avoid gaps.

The technical effect that this embodiment provided is, through the design of honeycomb duct and the setting of rubber seal pad, with delivery port, honeycomb duct, square cavity, follow-up structure water drainage bag etc. form a complete rivers passageway to guaranteed good leakproofness.

As shown in fig. 2, in one possible design, the upper housing 210 includes an upper housing body 2101, an air inlet 2102 and an air outlet 2103;

the air inlet 2102 is provided at one side of the top of the upper housing body 2101, the air inlet 2102 being for guiding air to enter;

the air outlet 2103 is arranged at the top of the upper shell body 2101, and the air outlet 2103 is used for discharging filtered air;

the baffle structure 350 is coaxially arranged with the air inlet 2102, and the structure of the baffle structure 350 is a flanging design structure.

Specifically, as shown in fig. 2 and 5, the upper housing 210 includes an upper housing body 2101, an air inlet 2102 and an air outlet 2103. The upper housing body 2101 is injection molded and forms a sealed integral structure with the lower housing body 2201 through a sealing structure.

The air intake 2102 is provided on one side of the top of the upper housing body 2101, directs air into the air cleaner, typically extending down to the oil sump proximate the oil bath air cleaner, so that the air will swirl or directly contact the oil surface as it enters.

The air outlet 2103 is arranged at the center of the top of the upper shell body 2101, and filtered air is discharged from the air outlet 2103, so that clean air after oil bath treatment can be ensured to rise and leave the air filter through the air outlet 2103.

The baffle structure 350 is arranged coaxially with the air inlet 2102, and the edge of the baffle structure 350 is designed to be inclined with the downward directionIs designed into a flanging structure.

The technical effect that this embodiment provided is, through the design of air inlet, gas outlet, carries out the passageway design respectively with the air that carries moisture and impurity and the air after purifying, has avoided the inhomogeneous of gas mixing.

In one possible design, upper housing 210 also includes a filler neck 2104 and a dipstick 2105;

The oil filling port 2104 is arranged at one corner of the top of the upper shell body 2101, and the oil dipstick 2105 is inserted into the cavity through the oil filling port 2104.

Specifically, as shown in fig. 2 and 3, the upper housing 210 is further provided with an oil filler neck 2104 and an oil dipstick 2105.

An oil filling port 2104 is provided at an upper outer corner of the upper case 210, and oil can be added to the oil bath type air cleaner through the oil filling port.

The dipstick 2105 has a length that is determined by the oil bath air cleaner sump or oil pool of the different heavy vehicles.

In addition, the oil filling port 2104 is also matched with an oil plug, and a filling mark is carved on the oil plug. The oil dipstick 2105 can be inserted into the cavity through the oil fill port 2104, and an oil plug is connected with the oil dipstick 2105 to obtain the oil level.

The technical effect that this embodiment provided is, through the design of oiling mouth, oil plug, and dipstick, can regularly inspect whether there is leakage or other unusual phenomenon in dipstick and surrounding area, ensures air cleaner normal operating.

As shown in fig. 2, 6, 7 and 8, fig. 6 illustrates the manner of sealing between the first housing flange 2107 of the upper housing 210 and the second housing flange 2206 of the lower housing 220.

In one possible design, the lower housing 220 further includes a second housing flange 2206, a plurality of snaps 230, a drain nozzle 2207, and a shield 2208, and the upper housing 210 further includes a first housing flange 2107;

The first shell flange 2107 is arranged on the lower surface of the upper shell body 2101, the second shell flange 2206 is arranged on the upper surface of the lower shell body 2201, and the plurality of buckles 230 are uniformly distributed on the lower shell body 2201;

The first housing flange 2107 and the second housing flange 2206 are in sealing connection with the plurality of buckles 230 through the first cross seal structure 500 and the plurality of first seal rings 250;

Both the drain nozzle 2207 and the guard plate 2208 are disposed on the lower surface of the lower housing body 2201, and the drain nozzle 2207 is lower than the guard plate 2208.

Specifically, the upper housing 210 further includes a first housing flange 2107, and the first housing flange 2107 is designed around the bottom of the upper housing 210.

The top upper surface of lower casing body 2201 is provided with second shell turn-ups 2206 a week, still installs a plurality of buckles 230 on the lower casing body 2201, and a plurality of buckles 230 evenly distributed are in lower casing body 2201.

The first housing flange 2107 and the second housing flange 2206 are in sealing connection with each other through a plurality of evenly distributed buckles 230, the first cross-shaped sealing structure 500 and a plurality of first sealing rings 250, i.e. the upper housing 210 and the lower housing 220 are in sealing connection with each other through a plurality of buckles, the first cross-shaped sealing structure 500 and a plurality of first sealing rings 250. The plurality of first sealing rings 250 includes two circular rubber sealing rings 251 and one U-shaped sealing ring 260. Reference is made to fig. 7 for a specific sealing pattern.

The shield 2208 is a housing shield for an oil bath air cleaner and is primarily used to protect internal components and to maintain proper operation of the overall apparatus. The shield 2208 is mounted to the lower housing body 2201. The water drain bag 2204 is L-shaped, faces the housing side, and the water drain nozzle 2207 is provided at the bottom end of the lower housing body 2201 and is lower than the guard plate 2208 so as to drain water.

The technical effect that this embodiment provided is, through shell turn-ups design to and a plurality of seal structure designs, guaranteed the leakproofness of oil bath formula air cleaner, avoid the water-oil separation unbalanced.

In one possible design, the structure of the cartridge support housing 320 is an arched mesh-like multi-layer structure, each layer of the cartridge support housing 320 being used to mount a cartridge;

Inner housing subassembly 300 also includes a plurality of long screws 370;

the pod 310 and cartridge support housing 320 are sealingly coupled by a second cross-seal structure 380, a plurality of second seal rings 390, and a plurality of long screws 370.

Specifically, as shown in fig. 3 and 4, the cartridge support housing 320 is constructed in an arcuate net-like multi-layer structure for mounting a plurality of cartridges. On the coaxial that the filter core was installed, still embedded two long screw rods 370, long screw rod 370 length is 273mm for it is fixed to establish ties the filter core.

The lower edge of the air guide sleeve 310 is matched with the upper part of the filter element supporting shell 320, and is in sealing connection with a plurality of long screws 370 through a second cross-shaped sealing structure 380, a plurality of second sealing rings 390.

The filter element supporting shell and the guide cover are connected in a sealing mode through the sealing structure and the sealing rubber rings. Good sealing performance is ensured.

In one possible design, the pre-filter cartridge subassembly 400 further includes a wick assembly 420 and a windage tray 430.

Specifically, as shown in fig. 3 and 4, the pre-filter cartridge subassembly 400 includes a cartridge housing 410, a wick assembly 420, and a windage tray 430. The pre-filter cartridge subassembly 400 is used to remove larger particulates, such as dust, sand, and other large-sized impurities, from the intake air stream.

Wherein the wick assembly 420 is inside the cartridge holder 410.

The technical effect that this embodiment provided is, and the work burden of follow-up oil bath filtration stage can be showing to the prefilter core subassembly, improves whole filtration efficiency to the engine oil is protected not polluted too early.

The present application provides a filter apparatus comprising:

An oil bath air cleaner, and a plurality of cartridges mounted in a cartridge support housing 320 of the oil bath air cleaner.

Specifically, the filter apparatus includes a filter apparatus and a plurality of filter cartridges.

The cartridge is installed in the cartridge supporting case 320 in the oil bath type air cleaner, and since the cartridge supporting case 320 is of a multi-stage structure, a plurality of cartridges are installed and are inserted in series through the long screw 370, and the pair of wing nuts are screwed between each layer to fix, thereby achieving the filtration of impurities, dust, etc., and the water collection and drainage.

The technical effects provided in this embodiment are similar to those of the oil bath type air cleaner in the above embodiment, and the description of this embodiment is omitted.

While the present application has been described with reference to the preferred embodiments shown in the drawings, it will be readily understood by those skilled in the art that the scope of the present application is not limited to such specific embodiments, and that the above embodiments are merely illustrative of the technical solutions of the present application, rather than limiting, and that, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the foregoing embodiments, or that equivalents may be substituted for some or all of the technical features thereof, without departing from the spirit of the technical solutions of the embodiments.

Claims (9)

1. An oil bath air cleaner, characterized in that the oil bath air cleaner (100) comprises an outer shell subassembly (200), an inner shell subassembly (300) and a pre-filter core subassembly (400);

The outer shell subassembly (200) comprises an upper shell (210) and a lower shell (220), wherein a cavity is formed between the upper shell (210) and the lower shell (220), the inner shell subassembly (300) and the pre-filter element subassembly (400) are both arranged in the cavity, and the inner shell subassembly (300) is positioned on the upper side of the pre-filter element subassembly (400);

The upper shell (210) and the lower shell (220) are in sealing connection through a first cross-shaped sealing structure (500) and a plurality of first sealing rings (250) matched with the first cross-shaped sealing structure (500);

The inner shell subassembly (300) comprises a guide cover (310) and a filter element supporting shell (320), wherein the guide cover (310) is used for separating moisture in air, and the guide cover (310) and the filter element supporting shell (320) are in sealing connection through a second cross-shaped sealing structure (380) and a plurality of second sealing rings (390) matched with the second cross-shaped sealing structure (380);

the pre-filter element sub-assembly (400) comprises a filter element frame (410), and the guide cover (310), the filter element supporting shell (320) and the filter element frame (410) are sequentially communicated to form an air passage;

a side water collecting disc (330) is arranged on one side of the air guide sleeve (310);

The side water collecting disc (330) comprises a vertically arranged partition plate (340), a obliquely arranged baffle structure (350) and a horizontally annular water collecting disc (3301), wherein the bottom edge of the baffle structure (350) is connected with the top edge of the partition plate (340), and the bottom edge of the partition plate (340) is connected with the water collecting disc (3301);

The water collecting disc (3301) is provided with a water outlet (3302).

2. The oil bath air cleaner of claim 1, wherein the lower housing (220) includes a lower housing body (2201), a boss (2202), a square cavity (2203), and a drain bag (2204);

The boss (2202) is arranged on one side, close to the water outlet (3302), of the lower shell body (2201), the square cavity (2203) is arranged on the boss (2202), and the upper surface of the square cavity (2203) is lower than the upper surface of the lower shell body (2201);

The square cavity (2203) is communicated with the drainage bag (2204), and the water collected in the water collecting disc (3301) is used for flowing into the drainage bag (2204) through the water outlet (3302) and the square cavity (2203).

3. The oil bath air cleaner of claim 2, wherein the inner housing subassembly (300) further includes a draft tube (360);

The first end of the flow guide pipe (360) is connected with the water outlet (3302), and the second end of the flow guide pipe (360) is lower than the upper surface of the square cavity (2203);

the upper surface of square cavity (2203) is provided with rubber seal (2209).

4. An oil bath air cleaner according to claim 2 or 3, wherein the upper housing (210) comprises an upper housing body (2101), an air inlet (2102) and an air outlet (2103);

the air inlet (2102) is arranged on one side of the top of the upper shell body (2101), and the air inlet (2102) is used for guiding air to enter;

the air outlet (2103) is arranged at the top of the upper shell body (2101), and the air outlet (2103) is used for discharging filtered air;

The baffle structure (350) and the air inlet (2102) are coaxially arranged, and the structure of the baffle structure (350) is a flanging design structure.

5. The oil bath air cleaner of claim 4, wherein the upper housing (210) further includes an oil fill port (2104) and an oil dipstick (2105);

the oil filling port (2104) is arranged at one corner of the top of the upper shell body (2101), and the oil dipstick (2105) is inserted into the cavity through the oil filling port (2104).

6. The oil bath air cleaner of claim 5, wherein the lower housing (220) further includes a second housing flange (2206), a plurality of snaps (230), a drain nozzle (2207), and a shield (2208), the upper housing (210) further including a first housing flange (2107);

the first shell flanging (2107) is arranged on the lower surface of the upper shell body (2101), the second shell flanging (2206) is arranged on the upper surface of the lower shell body (2201), and the plurality of buckles (230) are uniformly distributed on the lower shell body (2201);

The first shell flange (2107) and the second shell flange (2206) are in sealing connection with the plurality of buckles (230) through the first cross-shaped sealing structure (500), the plurality of first sealing rings (250);

the drain nozzle (2207) and the guard plate (2208) are both arranged on the lower surface of the lower shell body (2201), and the drain nozzle (2207) is lower than the guard plate (2208).

7. The oil bath air cleaner of claim 1, wherein the cartridge support housing (320) is constructed as an arched mesh multi-layer structure, each layer of the cartridge support housing (320) being configured for mounting a cartridge;

The inner housing subassembly (300) further includes a plurality of long screws (370);

The air guide sleeve (310) and the filter element supporting shell (320) are in sealing connection with each other through the second cross-shaped sealing structure (380), the plurality of second sealing rings (390) and the plurality of long screws (370).

8. The oil bath air cleaner of claim 7, wherein the pre-filter cartridge subassembly (400) further includes a wire assembly (420) and a windage tray (430).

9. A filter apparatus, the filter apparatus comprising:

the oil bath air cleaner of any one of claims 1 to 8, and a plurality of cartridges mounted in a cartridge support housing (320) of the oil bath air cleaner.