CN211370574U

CN211370574U - Carbon tank

Info

Publication number: CN211370574U
Application number: CN201921999527.4U
Authority: CN
Inventors: 曾志新; 孙凯; 董愚
Original assignee: Guangzhou Automobile Group Co Ltd
Current assignee: Guangzhou Automobile Group Co Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-08-28
Anticipated expiration: 2029-11-18

Abstract

The utility model provides a carbon tank, it includes: the carbon tank comprises a carbon tank body, a storage space and a connecting pipe, wherein the storage space is defined by the inner wall of the carbon tank body; the carbon tank upper cover is arranged at the top end of the carbon tank body and covers the opening of the carbon tank body; wherein, the carbon tank upper cover includes: a base having an interior space defined by an interior wall thereof, the base having a first opening and a second opening at a top end thereof and a third opening at a bottom end thereof, the first opening, the second opening and the third opening communicating with the interior space; the first connecting pipe is arranged at the top end of the base and is communicated with the inner space through the first opening; the second connecting pipe is arranged at the top end of the base and is communicated with the inner space through a second opening; the body connecting pipe penetrates through the third opening and is arranged in the inner space, so that the inner space is communicated with the storage space. The utility model provides a carbon tank is small, and the carbon dust high-usage.

Description

Carbon tank

Technical Field

The utility model relates to the technical field of auto-parts, especially, relate to a carbon tank.

Background

Because gasoline is a volatile liquid, an automobile fuel tank is often filled with volatile fuel gas at normal temperature, and because of complex components in the fuel tank, the fuel gas usually contains a large amount of harmful components (including H or C and the like). Therefore, air is polluted if discharged directly to the outside of the vehicle, and fuel is wasted. However, if the fuel tank is directly sealed, the gas generated by the constant volatilization increases the pressure inside the fuel tank, and when the pressure reaches a certain value, there is a certain risk.

Therefore, in the design of the automobile structure, it is generally necessary to install a device between the fuel tank and the engine for storing the fuel gas generated by the fuel tank and then sending the fuel gas to the engine, and the device is generally called a carbon tank. The interior of the carbon tank is filled with activated carbon powder with strong adsorbability, and redundant fuel gas in the oil tank is not discharged into the atmosphere any more, but is introduced into the carbon tank through a pipe, and the fuel gas is adsorbed by the activated carbon powder. When the automobile starts, the carbon tank electromagnetic valve is opened timely, and absorbed fuel gas is poured into the air inlet manifold again, so that the aims of saving fuel and protecting the environment are fulfilled.

In the existing carbon tank, desorption airflow and loading airflow respectively enter the carbon tank through different openings, and the coincidence of a fluid domain during the desorption of the carbon tank and a fluid domain during the loading of the carbon tank is low due to the structure. And only the carbon powder in the overlapping area of the carbon powder and the carbon powder can pass through the carbon powder when the carbon powder is in a loading working condition, so that the carbon powder absorbs fuel gas, and can pass through the carbon powder when the carbon powder is in a desorption working condition, so that the fuel gas adsorbed on the carbon powder is taken away, and the carbon powder belongs to effective carbon powder. The carbon powder outside the overlapped area is invalid carbon powder.

From this, the carbon dust utilization ratio of current carbon tank is lower, the holistic desorption volume of carbon tank is higher, leads to the volume of carbon tank great, and simultaneously, great volume also needs a large amount of carbon dust to fill, leads to manufacturing cost higher.

In addition, along with the implementation of the national standard of light automobile pollutant emission limit and measuring method (sixth stage of China) GB 18352.6-2016, the development of the national six-fuel system gradually replaces the development of the national five-fuel system. Under the same rated capacity of the fuel tank, the volume of the carbon tank of the national six-fuel system is 2-3 times that of the national five-carbon tank. Under the conditions of low carbon powder utilization rate, high desorption amount and large volume of the existing carbon tank, the manufacturing cost is increased sharply.

SUMMERY OF THE UTILITY MODEL

In view of the limitation of the prior art, the present invention provides a carbon canister which can improve the utilization rate of carbon powder and reduce the desorption amount, thereby greatly reducing the volume under the condition of ensuring to reach the specified standard.

In order to achieve the above object, an embodiment of the present invention provides a canister, which includes: a canister body having a storage space defined by an inner wall thereof, the canister body having a body opening at a top end thereof and a body connection pipe communicating with the storage space through the body opening; the carbon tank upper cover is arranged at the top end of the carbon tank body and covers the opening of the carbon tank body; wherein, carbon tank upper cover includes: a base having an interior space defined by an interior wall thereof, the base having a first opening and a second opening at a top end thereof and a third opening at a bottom end thereof, the first, second and third openings communicating with the interior space; the first connecting pipe is arranged at the top end of the base and is communicated with the inner space through the first opening; the second connecting pipe is arranged at the top end of the base and is communicated with the inner space through the second opening; the body connecting pipe penetrates through the third opening and is arranged in the inner space, so that the inner space is communicated with the storage space.

In some embodiments of the present invention, the canister upper lid is welded to the top end of the canister body.

In some embodiments of the present invention, a baffle is disposed in the storage space, and the storage space is divided into a first storage space and a second storage space.

In some embodiments of the present invention, one end of the baffle engages the top of the storage space and the other end defines a storage space opening with the bottom of the storage space; the first storage space and the second storage space are communicated with each other through the storage space opening.

In some embodiments of the present invention, the body opening is disposed on the top of the first storage space and is communicated with the first storage space.

In some embodiments of the present invention, the canister body further comprises a vent opening; the ventilation opening is arranged at the top end of the second storage space and communicated with the second storage space.

In some embodiments of the present invention, the canister body further comprises a plurality of connectors; the connecting pieces are arranged on the outer peripheral surface of the carbon tank body and used for fixing the carbon tank to a vehicle body.

In some embodiments of the present invention, the canister upper cover further comprises a sponge; the sponge is arranged in the inner space, is jointed with the top end of the inner space and covers the first opening and the second opening.

In some embodiments of the invention, the sponge is joined to the top end of the inner space by means of gluing.

In some embodiments of the present invention, the outer peripheral surfaces of the first connecting pipe and the second connecting pipe are provided with protrusions for connecting and fixing an external device.

The utility model provides a carbon tank is through making desorption air current and the public opening of loading air current, and the fluid domain when making the carbon tank desorption overlaps basically with the fluid domain when the carbon tank loading, makes most carbon dust all utilized completely, has improved the utilization ratio of carbon dust, has reduced the desorption volume of carbon tank. Based on this, the carbon tank volume obtains corresponding shrink, has further reduced the manufacturing cost of carbon tank.

Drawings

Fig. 1 is a cross-sectional view of a carbon canister according to an exemplary embodiment of the present invention.

In the figure: 1-canister, 11-canister body, 111-storage space, 1111-first storage space, 1112-second storage space, 112-body opening, 113-body connection pipe, 114-baffle, 115-storage space opening, 116-ventilation opening, 12-canister upper cover, 121-base, 1211-interior space, 1212-first opening, 1213-second opening, 1214-third opening, 122-first connection pipe, 1221-first connection pipe projection, 123-second connection pipe, 1231-second connection pipe projection, 124-sponge, 13-connection member, 131-first connection member, 132-second connection member, 133-third connection member.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

First, the terms related to the present invention are explained:

loading: the process that fuel gas enters the carbon tank and is fixed in the carbon tank by activated carbon powder is adopted;

desorption: refers to the process that the fixed fuel gas in the activated carbon powder is separated and flows out of the carbon tank due to the suction force generated by opening the electromagnetic valve.

Fig. 1 is a cross-sectional view of a canister 1 according to an exemplary embodiment of the present invention, and referring to fig. 1, in the present embodiment, the canister 1 may include a canister body 11 adapted to store carbon powder and a canister upper cover 12 adapted to connect an oil tank and a solenoid valve.

Specifically, in the embodiment of the present invention, the canister body 11 has a storage space 111 defined by an inner wall thereof for storing toner. The top end of the canister body 11 has a body opening 112 and a body connection pipe 113, wherein the body connection pipe 113 is communicated with the storage space 111 through the body opening 112. In use, both the loading gas stream and the desorption gas stream enter or exit the storage space 111 through the body connection tube 113 via the body opening 112. Therefore, as shown by a shaded part in figure 1, the fluid domain when the carbon tank is loaded is basically overlapped with the fluid domain when the carbon tank is desorbed, so that most of the carbon powder is completely utilized, the utilization rate of the carbon powder is improved, and the desorption amount of the carbon tank is reduced.

In the embodiment of the present invention, the canister body 11 further has a baffle plate 114. Referring to fig. 1, a barrier 114 is provided in the storage space 111 to divide the storage space 111 into a first storage space 1111 and a second storage space 1112. In the present embodiment, the top end of the baffle plate 114 and the top end of the storage space 111 are engaged with each other, and a certain gap is left between the bottom end and the bottom of the storage space 111, so that the bottom end of the baffle plate 114 and the bottom of the storage space 111 define a storage space opening 115. Thus, the first storage space 1111 and the second storage space 1112 communicate with each other through the storage space opening 115.

Optionally, in an embodiment of the present invention, the body opening 112 is disposed at a top end of the first storage space 1111 and is communicated therewith. The top end of the second storage space 1112 is provided with a ventilation opening 116, and the storage space is communicated with the external atmosphere so as to maintain the air pressure of the inner space during loading and desorption and ensure that the carbon tank can work normally.

Meanwhile, in the embodiment of the present invention, due to the existence of the baffle 114 and the storage space opening 115, the gas can enter the second storage space from the bottom through the storage space opening 115 only after being filled with the first storage space 1111. Therefore, the internal air pressure of the carbon tank 1 can be ensured, and meanwhile, the gas is prevented from overflowing to pollute the environment as far as possible.

Referring to fig. 1, in an embodiment of the present invention, a canister upper lid 12 is provided on a top end of a canister body 11 and covers a body opening 112. Specifically, the canister upper cover 12 includes a base 121, a first connection pipe 122, and a second connection pipe 123. The base 121 has an inner space 1211 defined by an inner wall thereof, the base 121 has a first opening 1212 and a second opening 1213 at a top end thereof, a third opening 1214 at a bottom end thereof, and the first opening 1212, the second opening 1213 and the third opening 1214 are all in communication with the inner space 1211. The first connection pipe 122 is disposed at the top end of the base 121 and communicates with the inner space 1211 through the first opening 1212, and the second connection pipe 123 is disposed at the top end of the base 121 and communicates with the inner space 1211 through the second opening 1213.

The utility model discloses an in the embodiment, first connecting pipe 122 is suitable for being connected with the solenoid valve, and when the solenoid valve during operation, because its suction, the gas flows out from carbon canister 1 through first connecting pipe 122, is carried to intake manifold. In order to make the connection not easily fall off, the first connection pipe 122 has a first connection pipe protrusion 1221 on an outer circumferential surface thereof for stable connection. Likewise, the second connection pipe 123 is adapted to be connected to a fuel tank, through which gas generated by volatilization of fuel in the mail box is introduced into the canister 1. In order to prevent the connection from falling off, the second connection pipe protrusion 1231 is also disposed on the outer circumferential surface of the second connection pipe 123 for stable connection.

In the embodiment of the present invention, the body connection pipe 113 is disposed in the inner space 1211 through the third opening 1214, so that the canister upper cover 12 is disposed on the top end of the canister body 11 and covers the body opening 112, and the inner space 1211 and the storage space 111 are communicated with each other.

In the embodiment of the present invention, the canister upper cover 12 may be fixed to the top end of the canister body 11 by welding. Optionally, in the embodiment of the present invention, the carbon canister upper cover 12 and the carbon canister body 11 are fixedly connected by friction welding.

In an embodiment of the present invention, the canister upper cover 12 may further include a sponge 124. Referring to fig. 1, the sponge 124 is disposed in the interior 1211, and engages with a top end of the interior 1211 and covers the first opening 1212 and the second opening 1213. Preferably, the sponge 124 is fixed to the top end of the inner space 1211 by means of gluing, for example, double-sided tape.

From this, restricted desorption in-process solenoid valve's suction, thereby prevented because suction is too big, thereby lead to in the carbon tank 1 negative pressure to rise to the influence to the oil tank shell, prevent simultaneously that carbon tank 1 from being inhaled flatly.

In the embodiment of the present invention, the canister body 11 may further include a connecting member 13. As shown in fig. 1, the connection member 13 includes a first connection member 131, a second connection member 132, and a third connection member 133, which are provided on the outer circumferential surface of the canister body 11, for fixing the canister 1 to the vehicle body.

The utility model discloses an in the embodiment, carbon tank upper cover 12 and carbon tank body 11 all can be through the mode one shot forming of moulding plastics.

In the loading process of the carbon tank 1 provided by the utility model, the fuel gas enters from the second connecting pipe 123, flows through the sponge 124, and then flows into the carbon powder area in the storage space 111 from the body opening 112, and most of the carbon powder is fully filled; during desorption, airflow also flows out through the body opening 112, and most of the carbon powder is fully desorbed. Because the loading airflow and the desorption airflow share one body opening 112, the fluid domain when the carbon tank is loaded and the fluid domain when the carbon tank is desorbed are basically overlapped, and the utilization rate of the carbon powder exceeds the existing structure by more than 5 percent. Therefore, the utilization rate of the carbon powder is improved, and the desorption amount of the carbon tank is reduced. Based on this, carbon tank 1 volume obtains corresponding shrink, has further reduced carbon tank 1's manufacturing cost. Meanwhile, the reduction of the volume of the carbon tank 1 also enables the electromagnetic valve to more easily extract fuel gas in the carbon tank, and the durable mileage of the electromagnetic valve is increased in a phase-changing manner.

Although some embodiments have been described herein by way of example, various modifications may be made to these embodiments without departing from the spirit of the invention, and all such modifications are intended to be included within the scope of the invention as defined in the following claims.

The particular embodiments disclosed herein are illustrative only, as the invention may be modified in nature and equivalents thereof, apparent to those skilled in the art from the teachings herein, and, thus, the specific embodiments of the invention disclosed above are illustrative only, and are not to be considered in a limiting sense as to the details of construction or design herein disclosed unless otherwise specified in the claims. Accordingly, the particular illustrative embodiments disclosed above are susceptible to various substitutions, combinations or modifications, all of which are within the scope of the disclosure. The carbon canisters illustratively disclosed herein may still be suitably practiced in the absence of any element not specifically disclosed herein or in the absence of any optional component disclosed herein. All numbers and ranges disclosed above may also vary somewhat. Whenever a numerical range with a lower limit and an upper limit is disclosed, any number and any included range falling within the range is specifically disclosed. In particular, any range of values disclosed herein is to be understood as being inclusive of any of the values and ranges encompassed within the broader range of values. Also, the terms in the claims have their plain, ordinary meaning unless otherwise explicitly and clearly defined by the applicant.

In addition, the number of components in the claims includes one or at least one unless otherwise specified. If there is any inconsistency between the words or terms used in the present invention and the usage or meaning in other documents, the definitions of the words or terms used in the present invention shall be applied.

Claims

1. A canister, comprising:

a canister body having a storage space defined by an inner wall thereof, the canister body having a body opening at a top end thereof and a body connection pipe communicating with the storage space through the body opening;

the carbon tank upper cover is arranged at the top end of the carbon tank body and covers the opening of the carbon tank body;

wherein, carbon tank upper cover includes:

a base having an interior space defined by an interior wall thereof, the base having a first opening and a second opening at a top end thereof and a third opening at a bottom end thereof, the first, second and third openings communicating with the interior space;

the first connecting pipe is arranged at the top end of the base and is communicated with the inner space through the first opening;

the second connecting pipe is arranged at the top end of the base and is communicated with the inner space through the second opening;

the body connecting pipe penetrates through the third opening and is arranged in the inner space, so that the inner space is communicated with the storage space.

2. The canister of claim 1,

the carbon tank upper cover is welded on the top end of the carbon tank body.

3. The canister of claim 1,

the storage space is provided with a baffle plate which divides the storage space into a first storage space and a second storage space.

4. A canister as in claim 3,

one end of the baffle is jointed with the top of the storage space, and the other end of the baffle and the bottom of the storage space define a storage space opening;

the first storage space and the second storage space are communicated with each other through the storage space opening.

5. A canister as in claim 4,

the body opening is arranged at the top end of the first storage space and communicated with the first storage space.

6. A canister as in claim 5,

the canister body further comprises a vent opening;

the ventilation opening is arranged at the top end of the second storage space and communicated with the second storage space.

7. A canister as claimed in any one of the claims 1 to 6,

the carbon tank body further comprises a plurality of connecting pieces;

the connecting pieces are arranged on the outer peripheral surface of the carbon tank body and used for fixing the carbon tank to a vehicle body.

8. A canister as claimed in any one of the claims 1 to 6,

the carbon tank upper cover also comprises sponge;

the sponge is arranged in the inner space, is jointed with the top end of the inner space and covers the first opening and the second opening.

9. The canister of claim 8,

the sponge is bonded to the top end of the inner space by means of gluing.

10. A canister as claimed in any one of the claims 1 to 6,

and bulges are arranged on the peripheral surfaces of the first connecting pipe and the second connecting pipe and are used for connecting and fixing external equipment.