CN212079480U

CN212079480U - Active filtering carbon tank structure for vehicle oil gas recovery

Info

Publication number: CN212079480U
Application number: CN202020503198.6U
Authority: CN
Inventors: 黄营凯
Original assignee: China Huayang Enterprise Co ltd
Current assignee: China Huayang Enterprise Co ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-12-04
Anticipated expiration: 2030-04-08

Abstract

The utility model relates to an active filtration carbon tank structure of vehicle vapor recovery system, including a jar body, a baffle and an active carbon filter layer. The tank body is provided with an oil gas inlet and an oil gas recovery port which are adjacent, and the tank body is also provided with an atmospheric vent; the partition board is arranged in the tank body to separate the tank body into an inlet area and a filtering area, the oil gas inlet and the oil gas recovery port are communicated with the inlet area, and the partition board is provided with a through hole correspondingly positioned between the oil gas inlet and the oil gas recovery port; the active carbon filter layer is arranged in the filtering area, and the oil gas inlet is communicated with the atmosphere opening through the active carbon filter layer. The through holes of the partition board correspond to the positions between the oil gas inlet and the oil gas recovery port, so that the volume of the tank body at the outer edges of the oil gas inlet and the oil gas recovery port can be reduced, the active carbon of the active carbon filter layer can be used evenly and fully, and the usage amount of the active carbon filter layer is reduced.

Description

Active filtering carbon tank structure for vehicle oil gas recovery

Technical Field

The utility model discloses an active filtration carbon tank structure of vehicle vapor recovery system, the average and abundant quilt of active carbon ability of the active carbon filter layer that especially indicates to make the carbon tank is used, and the utility model of the active carbon filter layer use amount of reducible carbon tank.

Background

The convection holes of the oil tank of the early automobile and motorcycle are directly communicated with the outside air, so that gasoline in the oil tank can be directly dissipated to the atmosphere through the convection holes after being volatilized, but the volatilized oil gas contains a large amount of hydrocarbon, so that the oil gas can not only cause air pollution when being dissipated to the atmosphere, but also cause harm to health when being sucked into a human body.

In order to solve the problem, manufacturers connect the convection hole of the oil tank to the filtering carbon tank, and when the oil gas volatilizes, the oil gas firstly passes through the activated carbon filtering layer of the carbon tank to remove most of the hydrocarbon and then is discharged to the atmosphere so as to reduce the discharged pollutants.

However, when the vehicle is not started, the gasoline in the oil tank is continuously volatilized, and the volatilized oil gas is also very considerable and causes waste for a long time, so that there is a new patent No. M528787 of taiwan, "filtering device", which further connects the carbon tank to the carburetor and the oil control valve, when the vehicle is started, the oil control valve generates negative pressure to suck the oil gas volatilized from the oil tank into the carburetor, and the oil gas and the air entering the air valve are mixed into a mixed fuel gas to enter the engine cylinder for use, thereby achieving the effect of recycling the oil gas.

In this case, the oil gas import of carbon tank and the oil gas of oil gas recovery retrieve mouthful direct contact bubble cotton layer, therefore volatile oil gas gets into this carbon tank via this oil gas import after, passes through this bubble cotton layer earlier and then gets into in the active carbon filter layer. When the vehicle is started, the oil gas is pumped into the carburetor through the oil gas recovery port due to the negative pressure effect, and the oil gas is not normally entered into the activated carbon filter layer and is directly discharged through the oil gas recovery port when the vehicle is started because the fluid moves in a minimum path. And the oil gas import of the carbon tank of this case sets up in this carbon tank central point, and the oil gas recovery mouth of oil gas recovery sets up in adjacent this oil gas import one of them one side, when this carbon tank was got into to oil gas, can not flow through the opposite side of this carbon tank usually, consequently the active carbon filter layer of this oil gas recovery mouth opposite side in this carbon tank is used the number of times very little, when central point or the active carbon filter layer that is close to this oil gas recovery mouth need be changed because of saturation, the active carbon filter layer of common opposite side still can be used state, and the major cost of this carbon tank comes from this active carbon filter layer usually, therefore change this active carbon filter layer this moment and often cause waste and high cost.

Referring to fig. 12 and 13, the above oil gas recovery method is applied to the structure of a conventional carbon tank (B), the carbon tank (B) has an oil gas inlet (B1) and an oil gas recovery port (B2), the oil gas inlet (B1) and the oil gas recovery port (B2) are located on the top surface of the carbon tank (B) and located on both sides of the top surface of the carbon tank (B), an activated carbon filter layer (B3) of activated carbon is juxtaposed in the carbon tank (B), and the carbon tank (B) has an air vent (B4) communicated with the oil gas inlet (B1) through the activated carbon filter layer (B3). When volatile oil gas in the oil tank enters the carbon tank (B) from the oil gas inlet (B1), the oil gas is generally passed through the activated carbon filter layer (B3) close to one side of the oil gas inlet (B1) and then discharged from the ventilation atmosphere port (B4). When the engine is started, the volatilized oil gas also travels the shortest path due to the action of negative pressure and does not pass through the activated carbon filter layer (B3) on the side close to the oil gas recovery port (B2). Therefore, when the activated carbon filter layer (B3) close to the side of the oil gas inlet (B1) is saturated and needs to be replaced, the activated carbon filter layer (B3) close to the side of the oil gas recovery port (B2) is still in a usable state, and the replacement also causes the problems of waste and high cost.

SUMMERY OF THE UTILITY MODEL

Consequently filters in order to ensure that oil gas passes through the active carbon filter layer, improves the utilization ratio of active carbon filter layer simultaneously, the utility model provides a vehicle vapor recovery's active filtration carbon tank structure, including a jar body, a baffle and an active carbon filter layer, wherein:

the tank body is provided with an oil gas inlet and an oil gas recovery port which are arranged adjacently, and the tank body is also provided with an atmospheric vent; the partition board is arranged in the tank body and divides the tank body into an inlet area and a filtering area, the oil gas inlet and the oil gas recovery port are communicated with the inlet area, the partition board is provided with a through hole communicated with the inlet area and the filtering area, and the through hole is correspondingly positioned between the oil gas inlet and the oil gas recovery port; the activated carbon filter layer is arranged in the filter area of the tank body, and the oil gas inlet is communicated with the atmosphere opening through the activated carbon filter layer.

Further, the oil gas inlet and the oil gas recovery port are arranged on two sides of the central position of the tank body.

Furthermore, a first foam layer is positioned between the clapboard and the active carbon filtering layer.

Further, the can body comprises a main body and a bottom cover, and the air vent is positioned on the bottom cover.

Furthermore, a second foam layer is positioned between the active carbon filter layer and the bottom cover.

Furthermore, a diffusion plate is positioned between the second foam layer and the bottom cover.

According to the technical characteristics, the following effects can be achieved:

1. the partition plate is arranged in the tank body, and the through holes of the partition plate correspond to the positions between the oil gas inlet and the oil gas recovery port, so that the use efficiency of the active carbon filter layer is improved, the volume of the tank body at the outer edges of the oil gas inlet and the oil gas recovery port can be further reduced, and the use amount of active carbon of the active carbon filter layer is reduced. Therefore, the oil gas inlet and the oil gas recovery port can be preferably arranged at two sides of the central position of the tank body.

2. Oil gas entering the active carbon filter layer can be preliminarily filtered through the first foam layer; and through this second foam layer, can make the oil tank oil feed to when the governing valve, when the air admission this jar body, the air of this active carbon filter layer of preliminary filtration entering in when the engine starts.

3. When the engine is started to enable the oil tank to feed oil to the regulating valve, air can uniformly pass through the active carbon filter layer through the diffusion plate when entering the tank body through the air inlet.

Drawings

FIG. 1 is a three-dimensional exploded view of the canister body, the partition plate and the activated carbon filter layer of the present invention;

FIG. 2 is a perspective exploded view of the oil-gas control throttling structure of the present invention;

FIG. 3 is a perspective view of the present invention;

fig. 4 is a combined cross-sectional view of the present invention;

FIG. 5 is an enlarged cross-sectional view of the oil-gas control throttling structure of the present invention;

FIG. 6 is a system architecture diagram of the present invention for use in a locomotive oil supply system;

FIG. 7 is a schematic view showing that when the present invention is in use, the pressure of the oil gas is greater than the elastic force of the first elastic member of the oil gas control throttling structure, so that the oil gas enters the tank body;

FIG. 8 is an enlarged view of a portion of FIG. 7;

FIG. 9 is a schematic view of the oil gas recycling device of the present invention, when the engine is started, the oil gas is sucked out from the oil gas recycling port of the tank body for recycling;

FIG. 10 is a schematic view showing that when the present invention is used, the engine is started to suck air from the air vent, and the air pressure is greater than the elastic force of the second elastic member of the oil-gas control throttling structure, so that the air enters the oil tank to form a convection effect, the pressure in the oil tank can be balanced, and the gasoline can be output to the regulating valve;

FIG. 11 is an enlarged view of a portion of FIG. 10;

FIG. 12 is a schematic view of an active filter canister with an oil and gas recovery structure according to the prior art;

fig. 13 is a second schematic view of an active filtering carbon tank with an oil gas recovery structure in the prior art.

The reference numbers illustrate: a-carbon tank, 1-tank body, 11-main body, 111-oil gas inlet, 112-oil gas recovery port, 113-containing part, 114-inlet region, 115-active carbon filtering region, 12-bottom cover, 121-vent air port, 2-clapboard, 21-through hole, 3-first foam layer, 4-active carbon filtering layer, 5-second foam layer, 6-diffusion plate, 7-oil gas control throttling structure, 71-base, 711-base, 7111-space, 7112-blocking part, 712-diaphragm, 7121-first butting part, 7122-second butting part, 72-first elastic part, 73-operating part, 731-extending part, 7311-inner concave part, 732-operating part, 74-second elastic part, 75-cover part, 751-pipe connection part, 752-abutting surface, 10-oil tank, 20-oil-gas control valve, 30-regulating valve, 40-air valve, 50-engine cylinder, B-carbon tank, B1-oil-gas inlet, B2-oil-gas recovery port, B3-activated carbon filter layer and B4-through atmosphere port.

Detailed Description

By integrating the technical features, the main efficacy of the active filtering carbon tank structure for vehicle oil gas recovery of the present invention will be clearly demonstrated in the following embodiments.

Referring to fig. 1 and 2, the carbon canister (a) of the present embodiment includes a canister body (1), a partition (2), a first foam layer (3), an activated carbon filter layer (4), a second foam layer (5), a diffuser plate (6), and an oil-gas control throttling structure (7), wherein the first foam layer (3) and the second foam layer (5) are similar materials such as a non-woven fabric layer or a filter paper layer. This jar body (1) of this embodiment includes a main part (11) and a bottom (12), has an oil gas inlet (111) and an oil gas recovery mouth (112) adjacent setting on this main part (11), and this oil gas inlet (111) and this oil gas recovery mouth (112) set up the both sides of the central point of this main part (11), has a logical atmosphere mouth (121) in addition on this jar body (1), this leads to atmosphere mouth (121) and is located this bottom (12), and there is a holding portion (113) in this oil gas inlet (111) department, this oil gas control throttle structure (7) set up in this holding portion (113), this oil gas control throttle structure (7) include a base (71), a first elastic component (72), an operating part (73), a second elastic component (74) and a cover piece (75).

Referring to fig. 3 and 4, the partition board (2) is disposed in the main body (11), the partition board (2) separates the main body (11) into an inlet region (114) and an activated carbon filtering region (115), the oil gas inlet (111) and the oil gas recovery port (112) are communicated with the inlet region (114), the partition board (2) is provided with a through hole (21) communicated with the inlet region (114) and the activated carbon filtering region (115), the through hole (21) is correspondingly disposed between the oil gas inlet (111) and the oil gas recovery port (112), the activated carbon filtering layer (4) is disposed in the activated carbon filtering region (115) of the main body (11), the oil gas inlet (111) is communicated with the atmospheric air port (121) through the activated carbon filtering layer (4), the first foam layer (3) is disposed between the partition board (2) and the activated carbon filtering layer (4), and the second foam layer (5) is disposed under the activated carbon filtering layer (4), the diffusion plate (6) is located below the second foam layer (5), and the main body (11) is closed by the bottom cover (12).

Referring to fig. 4 and 5, in the oil-gas control throttling structure (7), the base (71) is disposed in the accommodating portion (113) and is separated from the oil-gas inlet (111) and the inner wall of the accommodating portion (113) by a distance, in this embodiment, the base (71) includes a base (711) and a diaphragm (712), two ends of the base (71) are hollow and penetrate through the base (711) and the diaphragm (712), a space (7111) is formed inside the base (711), the space (7111) is communicated with the oil-gas inlet (111), the base (711) extends to a peripheral edge to form a blocking portion (7112), the diaphragm (712) has a first abutting portion (7121) and a second abutting portion (7122), such as an annular rib formed on the diaphragm (712) by the first abutting portion (7121) and the second abutting portion (7122), and the diaphragm (712) is a rubber seal, the first elastic piece (72) is arranged at the outer edge of the base (711), so that the first elastic piece (72) is abutted between the periphery of the oil gas inlet (111) and the blocking part (7112); the operating part (73) is provided with an extending part (731) and an operating part (732), the extending part (731) extends into the space (7111) of the base (71), the operating part (732) is abutted against the first abutting part (7121) to seal the space (7111), the second elastic part (74) is arranged in the space (7111) of the base (71), the second elastic part (74) is fixed on the extending part (731) of the operating part (73) and abutted against the inner surface of the space (7111), the extending part (731) is provided with an inner concave part (7311), and the second elastic part (74) is embedded in the inner concave part (7311); the cover member (75) covers the accommodating portion (113) and keeps a distance with an operating portion (732) of the operating member (73), a pipe connecting portion (751) is arranged in an extending mode of the cover member (75), and an abutting surface (752) of the cover member (75) abuts against a second abutting portion (7122) of the base (71) to separate the pipe connecting portion (751) and the accommodating portion (113).

Referring to fig. 6, the carbon tank (a) of the present invention is used in a locomotive oil supply system, which includes: a fuel tank (10); a pipe joint part (751) of the carbon tank (A) of the utility model is connected with the oil tank (10); an oil gas control valve (20) is connected with an oil gas recovery port (112) of the carbon tank (A); a regulating valve (30) is connected with the oil tank (10) and the oil control valve (20); an air valve (40) is connected to the regulator valve (30), and typically the air valve (40) will be provided with an air filter to filter air entering the system; an engine cylinder (50) is connected to the regulator valve (30). It should be further noted that the oil supply system of the locomotive of the embodiment is an injection engine, so that the system does not use a carburetor to adjust the gasoline entering the engine cylinder (50) from the oil tank (10), and uses a microcomputer control of the locomotive to control the on-off of the regulating valve (30), so as to accurately control the amount of the gasoline entering the engine cylinder (50) from the oil tank (10), thereby improving the problem of inaccurate oil inlet amount control of the carburetor.

Referring to fig. 6, 7 and 8, when the oil supply system of the locomotive is not activated, the gasoline in the oil tank (10) is continuously volatilized and enters the oil-gas control throttling structure (7) through the pipe joint (751), and when the pressure of the volatilized oil gas is smaller than the elastic force of the first elastic member (72), the abutting surface (752) of the cover member (75) continuously abuts against the second abutting portion (7122) of the base (71) to separate the pipe joint (751) from the accommodating portion (113), so that the volatilized oil gas cannot enter the tank body (1) [ as shown in fig. 5 ]. When the gasoline is continuously volatilized to ensure that the pressure of the oil gas is large enough to overcome the elastic force of the first elastic member (72), the first elastic member (72) is compressed, the base (71) is displaced to separate the abutting surface (752) of the cover member (75) from the second abutting part (7122) of the base (71) to connect the pipe connecting part (751) and the accommodating part (113), the oil gas can enter the tank body (1) through the oil gas inlet (111), the oil gas entering the tank body (1) can be diffused to the through hole (21) through the inlet area (114) and then enters the activated carbon filtering area (115) through the through hole (21), the oil gas entering the activated carbon filtering area (115) can be subjected to primary filtering through the first foam layer (3), most of hydrocarbon is filtered through the activated carbon filtering layer (4), and then passes through the second foam layer (5) and the diffusion plate (6), is discharged into the atmosphere through the atmospheric vent (121), thereby reducing the pollution of hydrocarbon. The partition board (2) is placed in the tank body (1), the through holes (21) of the partition board (2) correspond to the space between the oil gas inlet (111) and the oil gas recovery port (112), the use efficiency of the activated carbon filter layer (4) is improved, the volumes of the tank body (1) positioned at the outer edges of the oil gas inlet (111) and the oil gas recovery port (112) can be further reduced, the use amount of activated carbon of the activated carbon filter layer (4) is reduced, the pipe joint part (751) and the accommodating part (113) are communicated when the oil gas pressure is sufficient, and the service life of the activated carbon filter layer (4) can be prolonged.

Referring to fig. 6 and 9, when the engine is started, the oil gas entering the activated carbon filtering area (115) can be sucked out of the through hole (21) of the partition plate (2) by the oil gas control valve (20) generating negative pressure, and is discharged out of the tank body (1) through the oil gas recovery port (112) to enter the regulating valve (30), and before entering the regulating valve (30), the oil gas is mixed with the air entering the air valve (40), and then mixed with the gasoline entering the regulating valve (30) from the oil tank (10) to form mixed fuel gas, and enters the engine cylinder (50) for use, so as to achieve the effect of oil gas recovery and reuse.

Referring to fig. 6, 10 and 11, when the oil supply system is started, the gasoline in the oil tank (10) enters the regulating valve (30) to form a negative pressure in the oil tank (10), when the negative pressure is greater than the elastic force of the second elastic member (74), the operating member (73) is displaced to separate the operating portion (732) from the first abutting portion (7121) to connect the pipe connecting portion (751) and the accommodating portion (113), at this time, the air enters the tank body (1) through the atmospheric port (121), and the air entering is uniformly dispersed through the diffusion plate (6), and after the air entering is primarily filtered through the second foam layer (5), the air passes through the activated carbon filter layer (4) and enters the oil tank (10) through the oil-gas control throttling structure (7), so as to form a convection effect, and the gasoline in the oil tank (10) can continuously enter the regulating valve (30), operation of the engine cylinder (50) is maintained.

Synthesize the explanation of above-mentioned embodiment, reach the efficiency that the utility model discloses an operation, use and the utility model produced as can fully understand the utility model discloses, above only the embodiment only does the preferred embodiment of the utility model, when can not injecing with this the utility model discloses the scope of implementing, all belong to the within range that the utility model discloses the patent application range and utility model description do simple equivalent change and modification promptly.

Claims

1. The utility model provides an active filtration carbon tank structure of vehicle vapor recovery system which characterized in that, including: the tank body is provided with an oil gas inlet and an oil gas recovery port which are arranged adjacently, and the tank body is also provided with an air vent; the separator is arranged in the tank body and divides the tank body into an inlet area and a filtering area, the oil gas inlet and the oil gas recovery port are communicated with the inlet area, the separator is provided with a through hole communicated with the inlet area and the filtering area, and the through hole is correspondingly positioned between the oil gas inlet and the oil gas recovery port; an active carbon filter layer is arranged in the filtering area of the tank body, and the oil gas inlet is communicated with the atmosphere opening through the active carbon filter layer.

2. The activated filter canister construction for vehicle vapor recovery of claim 1, wherein the vapor inlet and the vapor recovery port are provided at both sides of the center of the canister body.

3. The activated filter canister construction for vehicle vapor recovery of claim 1, wherein a first foam layer is located between the partition and the activated carbon filter layer.

4. The canister structure of claim 1, wherein the canister body comprises a main body and a bottom cover, the air vent is located on the bottom cover.

5. The activated filter canister construction for vehicle vapor recovery of claim 4, wherein a second foam layer is located between the activated carbon filter layer and the bottom cover.

6. The canister construction of claim 5, wherein a diffuser plate is located between the second foam layer and the bottom cover.