CN216617701U - Novel carbon tank assembly - Google Patents
Novel carbon tank assembly Download PDFInfo
- Publication number
- CN216617701U CN216617701U CN202122310223.6U CN202122310223U CN216617701U CN 216617701 U CN216617701 U CN 216617701U CN 202122310223 U CN202122310223 U CN 202122310223U CN 216617701 U CN216617701 U CN 216617701U
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- China
- Prior art keywords
- carbon tank
- pressure sensor
- tank
- electromagnetic valve
- ventilation
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 69
- 238000009423 ventilation Methods 0.000 claims abstract description 43
- 238000001179 sorption measurement Methods 0.000 claims description 8
- 238000003795 desorption Methods 0.000 claims description 6
- 238000003745 diagnosis Methods 0.000 abstract description 20
- 239000000446 fuel Substances 0.000 abstract description 8
- 239000000428 dust Substances 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 239000002828 fuel tank Substances 0.000 description 10
- 239000003502 gasoline Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Landscapes
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model belongs to the technical field of automobile fuel, and particularly relates to a novel carbon tank assembly which comprises a carbon tank, a low-pressure sensor, a ventilation electromagnetic valve and an ash filter, wherein the low-pressure sensor is arranged on the carbon tank; the low-pressure sensor and the ventilation electromagnetic valve are arranged on the carbon tank; the ventilation electromagnetic valve is communicated with the atmosphere opening of the carbon tank; the atmosphere opening of the carbon tank is provided with an atmosphere pipe, and the ash filter is arranged on the atmosphere pipe. The novel carbon tank integrating the low-pressure sensor and the ventilation electromagnetic valve can meet a new leakage diagnosis calibration strategy after being matched with the high-pressure oil tank and the high-pressure oil tank stop valve; the ash filter ensures that clean air enters the carbon tank, prevents the ventilation solenoid valve from losing efficacy due to dust blocking, and is detachably connected with the air vent pipe, so that the after-sale maintenance cost is reduced.
Description
Technical Field
The utility model belongs to the technical field of automobile fuel, and particularly relates to a novel carbon tank assembly.
Background
The carbon canister assembly has the working principle that gasoline vapor is adsorbed into the activated carbon canister assembly and stored, after an engine is started, a carbon canister electromagnetic valve arranged between the carbon canister assembly and an air inlet manifold is opened under the condition that the condition is met, and the gasoline vapor in the carbon canister assembly is brought into the air inlet manifold by clean air under the action of the vacuum degree of the engine to be mixed and then enters an air cylinder to participate in combustion.
The six national regulations increase the requirement of fuel system leakage diagnosis, and currently, two diagnosis schemes, namely negative pressure diagnosis and positive pressure diagnosis, are mainstream. The principle of negative pressure diagnosis is to utilize the engine to vacuumize and then judge the leakage amount according to the pressure change in the fuel system. In order to meet the negative pressure diagnosis, a ventilation electromagnetic valve (CVS) is firstly needed to be added after the carbon tank is communicated with an air port. The function of the ventilation solenoid valve (CVS) is to disconnect the carbon tank from the atmosphere before the engine is vacuumized; in addition, a pressure sensor is required to be added to the oil tank or the oil pump for detecting pressure change and determining leakage. The principle of the positive pressure diagnosis is to generate positive pressure by using a fuel tank leakage Diagnosis Module (DMTL), and then judge leakage amount according to current of the fuel tank leakage Diagnosis Module (DMTL). To satisfy the positive pressure diagnosis, a fuel tank leakage Diagnosis Module (DMTL) is added after the carbon tank is communicated with the atmosphere. The function of the fuel tank leakage Diagnosis Module (DMTL) is to provide positive pressure and simulate the leakage of 0.5mm or 1mm hole (the national six regulations require that the leakage of the fuel system is less than the leakage of 1mm hole). The leakage amount is simulated to determine the current of the fuel tank leakage Diagnosis Module (DMTL) at the hole of 0.5mm or 1mm, so that whether leakage exists can be judged by comparing the current measured in actual detection.
However, the negative pressure diagnosis is only suitable for the normal pressure fuel tank, and the fuel tank leakage Diagnosis Module (DMTL) in the positive pressure diagnosis is expensive. In addition, the new leak diagnostic calibration strategy requires a low pressure sensor between the high pressure tank shut-off valve (FTIV) and the vent solenoid valve (CVS), so the existing new canister assemblies cannot meet the requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems and provides a novel carbon tank assembly.
In order to achieve the technical purpose, the utility model adopts the following technical scheme:
a novel carbon tank assembly comprises a carbon tank, a low-pressure sensor, a ventilation electromagnetic valve and an ash filter; the low-pressure sensor and the ventilation electromagnetic valve are arranged on the carbon tank; the ventilation electromagnetic valve is communicated with the atmosphere opening of the carbon tank; the atmosphere opening of the carbon tank is provided with an atmosphere pipe, and the ash filter is arranged on the atmosphere pipe.
Further, the carbon tank is provided with a first mounting hole for inserting the low-pressure sensor, and the low-pressure sensor is detachably connected with the carbon tank through the first mounting hole.
Further, the carbon tank is provided with a second mounting hole for inserting the ventilation electromagnetic valve, and the ventilation electromagnetic valve is detachably connected with the carbon tank through the second mounting hole.
Further, the ash filter is detachably connected with the atmosphere pipe.
Further, the ventilation solenoid valve is positioned between the carbon tank and the ash filter.
Further, the carbon tank is provided with a desorption opening.
Further, the carbon tank is provided with an adsorption port.
Compared with the prior art, the utility model has the beneficial technical effects that:
(1) the novel carbon tank integrating the low-pressure sensor and the ventilation electromagnetic valve can meet a new leakage diagnosis calibration strategy after being matched with a high-pressure oil tank and a high-pressure oil tank stop valve.
(2) The low-pressure sensor and the ventilation electromagnetic valve are integrated on the carbon tank, and the low-pressure sensor and the ventilation electromagnetic valve are detachably connected with the carbon tank, so that the arrangement space is saved, and the after-sale maintenance cost is reduced;
(3) the ash filter ensures that clean air enters the carbon tank, prevents the failure of a ventilation solenoid valve (CVS) due to the blockage of dust, is detachably connected with the atmosphere pipe, and reduces the after-sale maintenance cost.
Drawings
FIG. 1 is a system diagram of the connection between a canister assembly and a high pressure fuel tank according to the present embodiment;
FIG. 2 is a view showing an overall structure of the canister assembly according to the embodiment;
FIG. 3 is an exploded view of the canister assembly according to this embodiment.
In the figure, a carbon tank 1, a low-pressure sensor 2, a ventilation electromagnetic valve 3, a high-pressure oil tank stop valve 4, an atmosphere pipe 5, an ash filter 6, an air pipe 7, an adsorption pipe 8, a high-pressure sensor 9, a high-pressure oil tank 10, an atmosphere port 13, a desorption port 14 and an adsorption port 15 are arranged.
Detailed Description
The utility model will be further described with reference to specific examples, but the scope of the utility model is not limited thereto.
As shown in fig. 1-3, the novel carbon tank assembly of the present embodiment includes a carbon tank 1, a low pressure sensor 2, a ventilation solenoid valve 3, and an ash filter 6. And the low-pressure sensor 2 and the ventilation electromagnetic valve 3 are both arranged on the carbon tank 1. The ventilation electromagnetic valve 3 is communicated with a ventilation atmosphere port 13 of the carbon tank 1. The air inlet 13 of the carbon tank 1 is provided with an air pipe 5, and the ash filter 6 is arranged on the air pipe 5. The adsorption port 15 of the carbon tank 1 is provided with an adsorption pipe 8 communicated with the high-pressure oil tank 10, and the high-pressure oil tank stop valve 4 is arranged on the adsorption pipe. The low pressure sensor 2 is used to monitor the pressure changes in the fuel system. The low-pressure sensor 2 is positioned between the high-pressure oil tank stop valve 4 and the ventilation electromagnetic valve 3. The novel carbon tank integrating the low-pressure sensor and the ventilation electromagnetic valve in the embodiment can meet a new leakage diagnosis calibration strategy after being matched with some hardware such as the high-pressure oil tank 10, the high-pressure oil tank stop valve 4 and the like. Meanwhile, the low-pressure sensor 2, the ventilation electromagnetic valve 3 and the ash filter are integrated on the carbon tank 1, so that the arrangement space is saved.
For being convenient for installation low pressure sensor 2, carbon tank 1 is equipped with the first mounting hole that supplies pressure sensor to insert, and low pressure sensor 2 can dismantle with carbon tank 1 through first mounting hole and be connected. For being convenient for installation ventilation solenoid valve 3, carbon tank 1 is equipped with the second mounting hole that supplies ventilation solenoid valve 3 to insert, and ventilation solenoid valve 3 passes through the second mounting hole and can dismantle with carbon tank 1 and be connected. Therefore, this embodiment is connected with can 1 is dismantled through low pressure sensor 2, ventilation solenoid valve 3 and all, has reduced after-sale cost of maintenance.
The ash filter 6 is detachably connected with the air pipe 5. The ventilation electromagnetic valve 3 is positioned between the carbon tank 1 and the ash filter 6. The vent solenoid valve 3 controls the shutoff of the vent port 13. The ash filter 6 ensures clean air to enter the carbon tank 1, and prevents the failure of the ventilation electromagnetic valve 3 due to dust blocking. The ventilation electromagnetic valve 3 is in a normally open working state, and fresh air enters the carbon tank 1 through the ventilation air pipe 5. When the ventilation solenoid valve 3 is turned off, the sealing performance of the whole system can be ensured. The carbon tank is provided with a desorption opening 14, and the desorption opening 14 is provided with a vent pipe 7. The carbon tank is equipped with adsorbs mouthful 15, adsorbs the mouth and is equipped with adsorption tube 8.
The working principle of the embodiment is as follows: the ventilation electromagnetic valve 3 is in a normally closed state; when the environmental temperature rises, the fuel vapor in the high-pressure fuel tank 10 increases to form high pressure, and whether leakage exists is judged through the pressure change of the high-pressure sensor 9 in the high-pressure fuel tank 10. If leakage exists, vacuumizing the engine, forming negative pressure inside the fuel system, and determining the leakage amount according to the change of the negative pressure.
In conclusion, the carbon tank assembly not only integrates the ventilation electromagnetic valve 3 and the ash filter 6, but also integrates the low-pressure sensor 2. Not only satisfied the basic function of carbon tank assembly, still satisfied the diagnosis function of leaking, because integrated ash is strained 6 again, so when carbon tank assembly desorption, guaranteed that clean air gets into carbon tank 1, prevent that ventilation solenoid valve 3 from dying to become invalid because of the dust card, practiced thrift simultaneously and arranged the space.
While the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that variations may be made in the embodiments without departing from the spirit of the utility model, and such variations are to be considered within the scope of the utility model.
Claims (7)
1. The utility model provides a novel carbon tank assembly, includes the carbon tank, its characterized in that:
the device also comprises a low-pressure sensor, a ventilation electromagnetic valve and an ash filter;
the low-pressure sensor and the ventilation electromagnetic valve are arranged on the carbon tank; the ventilation electromagnetic valve is communicated with the atmosphere opening of the carbon tank; the atmosphere opening of the carbon tank is provided with an atmosphere pipe, and the ash filter is arranged on the atmosphere pipe.
2. The new canister assembly as set forth in claim 1, wherein: the carbon tank is equipped with and supplies low pressure sensor male first mounting hole, and low pressure sensor can dismantle with the carbon tank through first mounting hole and be connected.
3. The novel canister assembly as set forth in claim 1, wherein: the carbon tank is equipped with and supplies ventilation solenoid valve male second mounting hole, and ventilation solenoid valve passes through the second mounting hole and can dismantle with the carbon tank and be connected.
4. The new canister assembly as set forth in claim 1, wherein: the ash filter is detachably connected with the atmosphere pipe.
5. The novel canister assembly as set forth in claim 1, wherein: the ventilation electromagnetic valve is positioned between the carbon tank and the ash filter.
6. The new canister assembly as set forth in claim 1, wherein: the carbon tank is provided with a desorption opening.
7. The new canister assembly as set forth in claim 1, wherein: the carbon tank is provided with an adsorption port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122310223.6U CN216617701U (en) | 2021-09-24 | 2021-09-24 | Novel carbon tank assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122310223.6U CN216617701U (en) | 2021-09-24 | 2021-09-24 | Novel carbon tank assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216617701U true CN216617701U (en) | 2022-05-27 |
Family
ID=81690597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122310223.6U Active CN216617701U (en) | 2021-09-24 | 2021-09-24 | Novel carbon tank assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216617701U (en) |
-
2021
- 2021-09-24 CN CN202122310223.6U patent/CN216617701U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 314500 988 Tong Tong Road, Wu Tong Street, Tongxiang, Jiaxing, Zhejiang Patentee after: United New Energy Automobile Co.,Ltd. Address before: 314500 988 Tong Tong Road, Wu Tong Street, Tongxiang, Jiaxing, Zhejiang Patentee before: Hezhong New Energy Vehicle Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A new type of carbon canister assembly Granted publication date: 20220527 Pledgee: Tongxiang Science and Technology Entrepreneurship Service Center Co.,Ltd. Pledgor: United New Energy Automobile Co.,Ltd. Registration number: Y2024330000709 |