CN109931191A - Reduce the canister of pollutant emission - Google Patents

Abstract

The present invention relates to the canisters for reducing pollutant emission, belong to the technical field of canister, its key points of the technical solution are that a kind of canister for reducing pollutant emission, including canister ontology, canister body interior includes interconnected atmosphere chamber and oil gas chamber, atmosphere chamber is provided with and communicated with atmospheric air port, oil gas chamber is provided with and communicated with adsorption orifice and desorption mouth, atmosphere chamber and oil gas is intracavitary is each filled with carbon dust, the atmosphere chamber is provided with absorbent module at the position of atmospheric air port, absorbent module includes shell, connecting plate and carbon-point, the top of shell is connected to atmospheric air port and atmosphere chamber, connecting plate is looped around the outer wall of shell and affixed with shell, side of the connecting plate far from shell is fixedly connected with the inner wall of oil gas chamber, intercommunicating pore is offered on connecting plate, carbon-point is set to enclosure interior and affixed with shell, reach the adsorption capacity for improving canister to reduce dirt Contaminate the effect of object discharge.

Description

Reduce the canister of pollutant emission

Technical field

The present invention relates to the technical fields of canister, more particularly to reduce the canister of pollutant emission.

Background technique

Canister is generally loaded between automotive oil tank and engine, because built with the activated carbon with suction-operated, therefore can To be used to collect gasoline vapor, to reuse.

Existing to can refer to the Chinese patent that Authorization Notice No. is CN104806387B, it discloses a kind of canisters.Including Tank body, adsorption orifice on tank body, desorption mouth and atmospheric air port are provided with accommodating chamber in tank body, and accommodating chamber passes through interval group Part interval becomes continuous channel, is provided with carbon dust in channel.Oil gas can gradually be spread after entering accommodating chamber along channel, Oil gas is sufficiently adsorbed by the carbon dust in channel, achievees the effect that good adsorption and desorption.

Prior art among the above have the following deficiencies: when in fuel tank oil vapour volatilization after can by adsorption orifice into Enter into canister, and above-mentioned canister only leans on carbon dust to adsorb oil vapour, when oil vapour is denseer, the limited sorption capacity of carbon dust, more More oil vapours can drain into atmosphere from the atmospheric air port of canister, when the discharge amount of oil vapour is larger, on the one hand be unsatisfactory for national row Standard is put, on the other hand also would seriously pollute the environment.Therefore the adsorptivity ability for promoting canister is compeled with reducing pollutant emission In the eyebrows and eyelashes.

Summary of the invention

The purpose of the present invention is to provide it is a kind of reduce pollutant emission canister, reach improve canister adsorption capacity with Reduce pollutant emission effect.

Technical purpose of the invention has the technical scheme that

A kind of canister reducing pollutant emission, including canister ontology, canister body interior include interconnected atmosphere chamber and Oil gas chamber, atmosphere chamber are provided with and communicated with atmospheric air port, and oil gas chamber is provided with and communicated with adsorption orifice and desorption mouth, and atmosphere chamber and oil gas are intracavitary It is each filled with carbon dust, the atmosphere chamber is provided with absorbent module at the position of atmospheric air port, and absorbent module includes shell, connecting plate And carbon-point, the top of shell are connected to atmospheric air port and atmosphere chamber, connecting plate is looped around the outer wall of shell and consolidates with shell It connects, side of the connecting plate far from shell is fixedly connected with the inner wall of oil gas chamber, and intercommunicating pore is offered on connecting plate, and carbon-point is set to Enclosure interior and affixed with shell.

Through the above technical solutions, canister ontology is installed on automobile, adsorption orifice is connected to fuel tank, and mouth and engine is desorbed Connection, atmospheric air port are communicated with the atmosphere, substantially the course of work are as follows: oil vapour is flowed along pipeline, enters canister sheet from adsorption orifice Internal portion, and adsorbed by the carbon dust of canister body interior, air is entered in canister ontology from atmospheric air port and is mixed with oil vapour Conjunction forms mixed oil and gas, and engine is desorbed the mixed oil and gas of canister body interior by the way that mouth is desorbed, thus by canister The gas mixture of portion's storage is desorbed to engine interior to carry out secondary use.But since oil gas chamber is mutually interconnected with atmosphere chamber It is logical, therefore the oil vapour for some is discharged in natural environment by atmospheric air port, not only causes environmental pollution, but also waste Oil liquid, and the setting of absorbent module, can be to avoid this phenomenon.Oil vapour enters in atmosphere chamber from oil gas chamber, then from shell Intercommunicating pore is passed through in the outside of body, enters back into enclosure interior, is finally adsorbed by carbon-point, since the adsorption capacity of carbon-point is stronger, because This can adsorb most oil vapour, thus greatly reduce the oil vapour content being discharged from atmospheric air port, and due to The setting of shell, so that the approach that oil vapour flows to atmospheric air port process out of atmosphere chamber is longer, most oil vapour can be with It is sufficiently adsorbed by carbon dust, is further reduced the oil vapour pollution object drained into atmosphere, to substantially reduce the pollution to environment.

The present invention is further arranged to: the top of the shell close to atmosphere chamber inner top surface and with atmosphere chamber inner top surface it Between there are gap, connecting plate is located at the middle position of shell vertical direction.

Through the above technical solutions, oil vapour enters after atmosphere chamber, can be spread first in the external of shell, it is then suitable Intercommunicating pore continue to flow, and enclosure interior is entered from airspace, since connecting plate is in the interposition of shell vertical direction Place is set, so that the path that oil vapour flows to atmospheric air port is elongated, improves carbon dust to the adsorption capacity of oil vapour, to reduce discharge Amount improves the feature of environmental protection.

The present invention is further arranged to: the enclosure interior is provided with vertical baffle ring, the top of baffle ring and atmosphere chamber Inner top surface is fixedly connected, the bottom of baffle ring close to shell interior bottom and there are gap, carbon-point settings between bottom in shell Inside baffle ring, and the bottom of carbon-point is fixedly connected with the inner bottom surface of shell.

Through the above technical solutions, after the setting of baffle ring is so that oil vapour enters enclosure interior, first can shell with Continue to flow downward between baffle ring, then spreads around carbon-point, on the one hand extended by the setting of baffle ring upward vertically again The flow path of oil vapour arrange oil vapour must from atmospheric air port again after the surrounding diffusion of carbon-point completely Out, carbon-point is improved to the adsorption capacity of oil vapour, to reduce exhaust of oil amount, is reduced the pollution to environment, is improved canister The feature of environmental protection of ontology.

The present invention is further arranged to: vertical first partition is fixedly installed in the atmosphere chamber, first partition will be big Air cavity is divided into two, including flow chamber and guidance chamber, flow chamber are directly connected to atmospheric air port, and the bottom of first partition is opened Equipped with the first connectivity slot, for the first connectivity slot by flow chamber and guidance chamber, the top of canister ontology offers guiding port And communication port, guiding port and guidance chamber, communication port are connected to oil gas chamber, guiding port and communication port upper cover are equipped with the first lid Body, the first lid enable guiding port be connected to communication port.

Through the above technical solutions, when oil vapour out of canister ontology by atmospheric air port be discharged when, oil vapour first have to from The communication port on oil gas chamber top flows out, and enters guidance chamber interior subsequently into the first lid portion inside, then from guiding port, oil steams Gas then since guidance chamber top spread downwards, diffuse to guidance chamber bottom position after from the first connectivity slot into Enter to flow chamber bottom, then continue up diffusion along flow chamber again, be finally discharged from atmospheric air port, so that oil steams Gas is greatly prolonged in the circulation path of canister body interior, and oil vapour is sufficiently absorbed by carbon dust, to reduce oil The discharge amount of steam substantially increases the pollution to environment, improves the feature of environmental protection of canister ontology.

The present invention is further arranged to: the oil gas is intracavitary to be fixedly installed vertical second partition, and second partition will be oily Air cavity is divided into two, including transition chamber thereof and logical oil-in chamber, transition chamber thereof are connected to communication port, lead to oil-in chamber and adsorption orifice and Mouth connection is desorbed, the bottom of second partition offers the second connectivity slot, and transition chamber thereof is connected to by the second connectivity slot with logical oil-in chamber, The top of tank body offers oil gas mouth, and oil gas mouth is connected to logical oil-in chamber, oil gas mouth upper cover be equipped with the second lid, adsorption orifice and Desorption mouth is connected to the second lid, and the second lid is connected to oil gas mouth.

Through the above technical solutions, after oil vapour enters logical oil-in chamber from adsorption orifice, first from upper in logical oil-in chamber To lower diffusion, diffusion while, can sufficiently be adsorbed by carbon dust, and then oil vapour enters transition chamber thereof bottom from the second connectivity slot, Oil vapour continuation is spread in transition chamber thereof, continues while diffusion to be adsorbed by carbon dust, then oil vapour is at the top of transition chamber thereof The communication port of connection enters in the first lid, and enters guidance chamber from guiding port, then spreads in guidance cavity room, and from Guidance chamber bottom position enters flow chamber and is finally discharged from atmospheric air port, so that the path that oil vapour passes through is big It is big to lengthen, to improve carbon dust to the adsorption capacity of oil vapour, the discharge amount of oil vapour is reduced, is further decreased to environment Pollution improves environmental-protecting performance.Second lid is connected to adsorption orifice and desorption mouth with logical oil-in chamber, is convenient for oil vapour from absorption Mouth enters logical oil-in chamber or leaves logical oil-in chamber from desorption mouth.

The present invention is further arranged to: first lid and the second lid are integrally formed setting, and the first lid and the Two lid portion insides are not connected to mutually.

Through the above technical solutions, the first lid and the second lid are integrally formed, so that the structure of canister ontology is more stepped up It gathers, reduces the installation occupied space of canister ontology, improve corresponding space utilization rate on automobile.

The present invention is further arranged to: the bottom position of the flow chamber, transition chamber thereof and logical oil-in chamber is all provided with It is equipped with the affixed filter plate of canister inner body wall, offers filter opening on filter plate.

Through the above technical solutions, some ashes can be mingled with by being entered by atmospheric air port in the air of canister body interior Dirt, as long-time uses, dust can fall to the interior bottom of canister ontology by the filter opening of filter plate, so that canister ontology With certain dust capaciting ability, to extend the service life of canister ontology.

The present invention is further arranged to: the lower surface of the filter plate is fixedly installed elastic component, elastic component and canister sheet The inner bottom surface of body is fixedly connected.

Through the above technical solutions, canister ontology can generate vibration, bullet when canister ontology is installed on normal use on automobile The cushion performance of canister ontology can be improved in property part, prevents canister ontology from being damaged by rigid shock.

The present invention is further arranged to: the bottom of the canister ontology is fixedly installed bottom plate, and bottom plate is towards canister ontology There are three fixing seats for fixed setting on internal inner surface, and the both ends of elastic component are respectively fixedly connected in fixing seat and filter plate On.

Through the above technical solutions, fixing seat is used to that elastic component to be fixedly mounted, so that elastic component is stably installed at Between bottom plate and fixing seat, the bumper and absorbing shock stability of elastic component is improved.

The present invention is further arranged to: the elastic component is spring.

Through the above technical solutions, spring cost is relatively inexpensive, and elastic potential energy is preferable, therefore using spring as elastic component Absorbing shock performance can be improved and reduce cost.

In conclusion advantageous effects of the invention are as follows:

1, by the way that absorbent module is arranged in atmosphere chamber, the adsorption capacity to oil vapour is improved, is discharged to reduce from atmospheric air port Oil vapour content, reduce pollution to environment；

2, by the way that the flow chamber being sequentially communicated, guidance chamber, transition chamber thereof and logical oil-in chamber are arranged in canister ontology, prolong Long oil vapour further decreases oil so that carbon dust can sufficiently adsorb oil vapour in the diffusion path of canister body interior The discharge amount of steam improves environmental-protecting performance；

3, by the way that elastic component is arranged in the interior bottom of canister ontology, the damping, buffering performance of canister ontology is improved.

Detailed description of the invention

Fig. 1 is perspective view of the explosion of the invention；

Fig. 2 is the partial enlargement diagram in Fig. 1 at A；

Fig. 3 is the cross-sectional view for being intended to emphasize absorbent module；

Fig. 4 is the partial enlargement diagram in Fig. 3 at B；

Fig. 5 is the perspective view of the explosion for being intended to emphasize guiding port and communication port.

Appended drawing reference: 1, canister ontology；11, the first lid；12, the second lid；121, adsorption orifice；122, mouth is desorbed；13, Oil gas mouth；14, bottom plate；141, fixing seat；2, atmosphere chamber；21, flow chamber；211, first partition；2111, the first connectivity slot； 212, atmospheric air port；22, chamber is guided；221, guiding port；3, oil gas chamber；31, transition chamber thereof；311, communication port；32, lead to oil pocket Room；321, second partition；3211, the second connectivity slot；4, absorbent module；41, shell；412, baffle ring；42, connecting plate；421, even Through-hole；43, carbon-point；5, filter plate；6, elastic component.

Specific embodiment

Below in conjunction with attached drawing, invention is further described in detail.

It is a kind of reduce pollutant emission canister be arranged inside canister ontology 1 in conjunction with Fig. 1 and Fig. 3, including canister ontology 1 There are interconnected atmosphere chamber 2 and oil gas chamber 3, is filled with carbon dust in atmosphere chamber 2 and oil gas chamber 3, atmosphere chamber 2 is provided with and communicated with greatly Port 212, oil gas chamber 3 are provided with and communicated with adsorption orifice 121 and desorption mouth 122, and atmosphere chamber 2 is internally provided with absorbent module 4, works as oil In case oil vapour volatilization from adsorption orifice 121 enter canister after, oil vapour first by the carbon dust in oil gas chamber 3 and atmosphere chamber 2 into Row absorption, is adsorbed by the absorbent module 4 in atmosphere chamber 2 again later, is finally discharged from atmospheric air port 212, absorbent module 4 can The oil vapour adsorbed is difficult to carbon dust and carries out second adsorption, so that the content of the Oil in circulating gas steam of the discharge of atmospheric air port 212 is reduced, Guarantee that discharge is up to state standards, to reduce pollutant emission, improves the feature of environmental protection.

Vertical first partition 211, first partition 211 and canister ontology 1 are provided in atmosphere chamber 2 combined with Figure 1 and Figure 2, Inner wall be fixedly connected, atmosphere chamber 2 is divided into two by first partition 211, including flow chamber 21 and guidance chamber 22, first every The bottom position of plate 211 offers the first connectivity slot 2111, and the first connectivity slot 2111 is by flow chamber 21 and guides chamber 22 Connection, wherein guidance chamber 22 be connected to oil gas chamber 3, when oil vapour enters in atmosphere chamber 2 from oil gas chamber 3, understand first into Enter to guide in chamber 22 and spread in guidance chamber 22, and the carbon dust being guided in chamber 22 fully absorbs, then oil steams Gas can enter flow chamber 21 from the first connectivity slot 2111, finally be discharged from atmospheric air port 212, guide the setting of chamber 22 can be with The diffusion path for extending oil vapour, so that oil vapour is sufficiently contacted and is adsorbed with carbon dust, to substantially reduce oil vapour Discharge amount, reduce environmental pollution.

Vertical second partition 321, second partition 321 and canister ontology 1 are provided in oil gas chamber 3 combined with Figure 1 and Figure 2, Inner wall be fixedly connected and second partition 321 is parallel to each other with first partition 211,3 one points of oil gas chamber are by second partition 321 Two, including transition chamber thereof 31 and logical oil-in chamber 32, the bottom position of second partition 321 offer the second connectivity slot 3211, Transition chamber thereof 31 is connected to by two connectivity slots 3211 with guidance chamber 22, and the top of canister ontology 1 offers guiding port 221, circulation 311 and oil gas mouth 13(of mouth refers to Fig. 5), wherein guiding port 221 is connected to guidance chamber 22, communication port 311 and transition chamber thereof 31 connections, oil gas mouth 13 are connected to logical oil-in chamber 32, and the first lid 11 and the second lid 12 are fixedly installed on canister ontology 1, First lid 11 is covered on guiding port 221 and communication port 311, so that guiding port 221 is connected to communication port 311, the second lid 12 are covered in oil gas mouth 13, and adsorption orifice 121 and desorption mouth 122 are connected to the second lid 12, the first lid 11 and second Lid 12 is integrally formed but is not connected to mutually.

When the operating of the engine of automobile, engine can make the oil vapour inside canister ontology 1 that desorption occur so that carbon Oil vapour inside tank ontology 1 is able to enter engine interior and is recycled, in this process, in canister ontology 1 Oil vapour can spread, and from atmospheric air port 212 be discharged, the diffusion path of oil vapour is as follows at this time: first in logical oil-in chamber 32 Inside spread from top to bottom, the bottom of transition chamber thereof 31 then entered from the second connectivity slot 3211, into transition chamber thereof 31 after oil Steam continuation is spread from bottom to up in transition chamber thereof 31, and is entered in the first lid 11 from communication port 311, then from guiding port 221 enter in guidance chamber 22, then spread from top to bottom in guidance chamber 22, after diffusing to guidance 22 bottom of chamber, Oil vapour continues to enter 21 bottom of flow chamber from the first connectivity slot 2111, then diffuses up along flow chamber 21, most It is discharged eventually from atmospheric air port 212.To sum up, oil vapour can pass through a very very long path from logical oil-in chamber 32 to final discharge, So that the carbon dust in canister ontology 1 sufficiently adsorbs oil vapour, to substantially reduce the discharge amount of oil vapour, the dirt to environment is reduced Dye improves environmental-protecting performance.

In conjunction with Fig. 3 and Fig. 4, absorbent module 4 is set in flow chamber 21, and absorbent module 4 includes shell 41, connecting plate 42 And carbon-point 43, shell 41 are the cylinder of top uncovered, connecting plate 42 surround the surrounding for being fixed in shell 41, and connecting plate 42 Side far from shell 41 is fixedly connected with the inner wall of canister ontology 1, so that shell 41 is fixedly linked with canister ontology 1, connection Intercommunicating pore 421 is offered on plate 42, there are reserved gap, carbon-points between the top of shell 41 and the top of flow chamber 21 43 are vertically arranged inside shell 41, and the bottom of carbon-point 43 is fixedly connected with 41 inner bottom surface of shell, fixed setting in shell 41 Have a circular baffle ring 412, up and down, and baffle ring 412 is sheathed on the surrounding of carbon-point 43 to baffle ring 412, the top of baffle ring 412 with The top of flow chamber 21 is fixedly connected, and there is also reserved gaps between the bottom of baffle ring 412 and the inner bottom surface of shell 41.It is comprehensive On, when oil vapour therefore after logical oil-in chamber 32, transition chamber thereof 31 and guidance chamber 22, flow chamber 21 is eventually entered into, After entering flow chamber 21, oil vapour in the external diffusion of shell 41, is then flowed up from intercommunicating pore 421, from shell first Gap between 21 inner top of body 41 and flow chamber enters inside shell 41, then continues under the action of baffle ring 412 downward Diffusion, finally enters inside baffle ring 412 from the gap between 41 inner bottom surface of shell and baffle ring 412, and contact with carbon-point 43, carbon-point 43 can adsorb most of oil vapour, so that oil vapour greatly reduces from the discharge rate of atmospheric air port 212, and The cooperation of baffle ring 412 and shell 41 also extends the emission path of oil vapour to a certain extent, thus greatly reduces oil Pollution of the steam to external environment improves the feature of environmental protection and economy of canister ontology 1.

Fig. 1 is reviewed, the bottom position of flow chamber 21, transition chamber thereof 31 and logical oil-in chamber 32 is fixedly installed filtering Plate 5 offers filter opening on filter plate 5, and the bottom of canister ontology 1 is fixedly installed bottom plate 14, and the inner surface of bottom plate 14 is fixed There are three fixing seat 141, three fixing seats 141 to be divided into flow chamber 21, transition chamber thereof 31 and logical oil-in chamber 32 for setting, Elastic component 6, and the fixed company of elastic component 6 and filter plate 5 and fixing seat 141 are provided between filter plate 5 and fixing seat 141 It connects, elastic component 6 can be the preferable rubber of elastic potential energy or spring, and present invention preferably selects for spring.Filter plate 5 can be with So that some dusts inside canister ontology 1 are filtered, the appearance dirt performance of canister ontology 1 is improved, the setting of elastic component 6 can be with The absorbing shock performance of canister ontology 1 is improved, the service life and stability in use of canister ontology 1 are improved.

The implementation principle of the present embodiment are as follows: canister ontology 1 understands some oil vapour from atmospheric air port in normal use 212 are expelled in nature, if not only polluting the environment if discharge excess, but also will cause oil liquid waste, and economy is poor, this Invention can substantially reduce the discharge amount of oil vapour, to reduce the pollution to environment, and improve economy.Below in conjunction with oil The diffusion path of steam is specifically described: oil vapour can spread from top to bottom in logical oil-in chamber 32 first, then from Second connectivity slot 3211 enters in transition chamber thereof 31, and oil vapour is spread from bottom to up in transition chamber thereof 31, is diffused to When the top of transition advantage, oil vapour flows through the first lid 11 and enters guidance cavity room 22, then from upper in guidance chamber 22 To lower diffusion, when oil vapour diffuses to guidance 22 bottom position of chamber, oil vapour can enter stream from the first connectivity slot 2111 In dynamic chamber 21, continuation is spread from bottom to up in flow chamber 21, and is entered inside shell 41 from intercommunicating pore 421.Extremely This, oil vapour so that diffusion path lengthens significantly, and then can improve inside canister ontology 1 up and down reciprocatingly by repeatedly diffusion Carbon dust to the adsorption effect of oil vapour, achieve the effect that tentatively to reduce oil vapour discharge amount.

After oil vapour enters from the top of shell 41, diffusion downwards is continued in gap of the meeting between shell 41 and baffle ring 412, Then it enters back into inside baffle ring 412, and is contacted with carbon-point 43, the adsorption capacity of carbon-point 43 is much larger than carbon dust, therefore carbon-point 43 As the last absorption barrier together at 212 position of atmospheric air port, most of oil vapour can be adsorbed, thus substantially Degree reduces discharge rate of the oil vapour from atmospheric air port 212, reduces the pollution to environment, and improve economic performance.

This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this All by the protection of Patent Law in the scope of the claims of invention.

Claims (10)

1. a kind of canister for reducing pollutant emission, including canister ontology (1), internal canister ontology (1) includes being interconnected Atmosphere chamber (2) and oil gas chamber (3), atmosphere chamber (2) are provided with and communicated with atmospheric air port (212), and oil gas chamber (3) is provided with and communicated with adsorption orifice (121) and mouth (122) are desorbed, are each filled with carbon dust in atmosphere chamber (2) and oil gas chamber (3), it is characterised in that: the atmosphere chamber (2) Close to atmospheric air port (212) position at be provided with absorbent module (4), absorbent module (4) include shell (41), connecting plate (42) with And carbon-point (43), the top of shell (41) are connected to atmospheric air port (212) and atmosphere chamber (2), connecting plate (42) is looped around shell The outer wall of body (41) is simultaneously affixed with shell (41), and the inner wall of side and oil gas chamber (3) of the connecting plate (42) far from shell (41) is solid It is fixed to connect, it is offered intercommunicating pore (421) on connecting plate (42), it is internal and solid with shell (41) that carbon-point (43) is set to shell (41) It connects.

2. the canister according to claim 1 for reducing pollutant emission, it is characterised in that: the top of the shell (41) is leaned on The inner top surface of nearly atmosphere chamber (2) and between atmosphere chamber (2) inner top surface there are gap, connecting plate (42) is located at shell (41) vertically The middle position in direction.

3. the canister according to claim 1 for reducing pollutant emission, it is characterised in that: setting inside the shell (41) Have vertical baffle ring (412), the top of baffle ring (412) is fixedly connected with the inner top surface of atmosphere chamber (2), the bottom of baffle ring (412) Close to shell (41) interior bottom and between shell (41) interior bottom there are gap, carbon-point (43) is set in baffle ring (412) Portion, and the bottom of carbon-point (43) is fixedly connected with the inner bottom surface of shell (41).

4. the canister according to claim 1 for reducing pollutant emission, it is characterised in that: fixed in the atmosphere chamber (2) Be provided with vertical first partition (211), atmosphere chamber (2) is divided into two by first partition (211), including flow chamber (21) and It guides chamber (22), flow chamber (21) is directly connected to atmospheric air port (212), and the bottom of first partition (211) offers first Flow chamber (21) is connected to by connectivity slot (2111), the first connectivity slot (2111) with guidance chamber (22), the top of canister ontology (1) End offers guiding port (221) and communication port (311), and guiding port (221) is connected to chamber (22) are guided, communication port (311) and Oil gas chamber (3) connection, guiding port (221) and communication port (311) upper cover are equipped with the first lid (11), and the first lid (11) enables guidance Mouth (221) is connected to communication port (311).

5. the canister according to claim 4 for reducing pollutant emission, it is characterised in that: fixed in the oil gas chamber (3) Be provided with vertical second partition (321), oil gas chamber (3) is divided into two by second partition (321), including transition chamber thereof (31) and Logical oil-in chamber (32), transition chamber thereof (31) are connected to communication port (311), lead to oil-in chamber (32) and adsorption orifice (121) and desorption Mouthful (122) connection, the bottom of second partition (321) offer the second connectivity slot (3211), and the second connectivity slot (3211) is by transition Chamber (31) is connected to logical oil-in chamber (32), and the top of tank body offers oil gas mouth (13), oil gas mouth (13) and logical oil-in chamber (32) it is connected to, oil gas mouth (13) upper cover is equipped with the second lid (12), adsorption orifice (121) and desorption mouth (122) and the second lid (12) it is connected to, the second lid (12) is connected to oil gas mouth (13).

6. the canister according to claim 5 for reducing pollutant emission, it is characterised in that: first lid (11) and the Two lids (12) are integrally formed setting, and the first lid (11) is not connected to the second lid (12) internal mutual.

7. the canister according to claim 5 for reducing pollutant emission, it is characterised in that: the flow chamber (21), mistake The bottom position for crossing chamber (31) and logical oil-in chamber (32) is provided with the affixed filter plate (5) of canister ontology (1) inner wall, Filter plate offers filter opening on (5).

8. the canister according to claim 7 for reducing pollutant emission, it is characterised in that: the following table of the filter plate (5) Face is fixedly installed elastic component (6), and elastic component (6) is fixedly connected with the inner bottom surface of canister ontology (1).

9. the canister according to claim 8 for reducing pollutant emission, it is characterised in that: the bottom of the canister ontology (1) Portion is fixedly installed bottom plate (14), and there are three fixed towards fixed setting on the internal inner surface of canister ontology (1) for bottom plate (14) Seat (141), the both ends of elastic component (6) are respectively fixedly connected on fixing seat (141) and filter plate.

10. the canister according to claim 8 for reducing pollutant emission, it is characterised in that: the elastic component (6) is bullet Spring.