CN105437954B - For the evaporation tube road of ORVR systems - Google Patents
For the evaporation tube road of ORVR systems Download PDFInfo
- Publication number
- CN105437954B CN105437954B CN201510977939.8A CN201510977939A CN105437954B CN 105437954 B CN105437954 B CN 105437954B CN 201510977939 A CN201510977939 A CN 201510977939A CN 105437954 B CN105437954 B CN 105437954B
- Authority
- CN
- China
- Prior art keywords
- evaporation tube
- fuel tank
- canister
- fuel
- valve
- Prior art date
- 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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Links
- 238000001704 evaporation Methods 0.000 title claims abstract description 34
- 230000008020 evaporation Effects 0.000 title claims abstract description 34
- 239000002828 fuel tank Substances 0.000 claims abstract description 25
- 230000008676 import Effects 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 abstract description 22
- 238000000034 method Methods 0.000 abstract description 9
- 239000000295 fuel oil Substances 0.000 abstract description 5
- 239000010761 intermediate fuel oil Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000009792 diffusion process Methods 0.000 abstract description 2
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 239000003502 gasoline Substances 0.000 description 4
- 239000000446 fuel Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005373 pervaporation Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/035—Fuel tanks characterised by venting means
- B60K15/03504—Fuel tanks characterised by venting means adapted to avoid loss of fuel or fuel vapour, e.g. with vapour recovery systems
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)
Abstract
Evaporation tube road of the present invention for ORVR systems, including by the extended evaporation tube put outside inside fuel tank, described evaporation tube one end is respectively connected with oiling shut-off valve, the oiling limit valve in the fuel tank, the other end is connected with the canister outside the fuel tank, one end that the evaporation tube is connected with canister is undergauge structure, and caliber is reduced to 6.5 mm of φ by 13.6 mm of φ；Circulation pipe is communicated on the evaporation tube, the circulation pipe is connected with oil filling pipe import side wall；The oil filling pipe caliber is 25 27 mm of φ, and limit base is provided at nozzle.The present invention can be effectively improved the distribution of fuel-steam pressure and flowing in fuel tank, substantially reduce diffusion of the refueling process intermediate fuel oil steam into air, effectively reduce energy waste, while reduce environmental pollution caused by refueling process compared to conventional fuel oil evaporation tube road.
Description
Technical field
The present invention relates to automotive fuel oil system technical field, more particularly, to a kind of evaporation tube road for ORVR systems.
Background technology
The oil gas evaporation phenomenon that automobile generates in refueling process can cause serious disposal of pollutants and energy waste.According to system
Meter, the VOC gasoline boil-off gas that about 1.5g will be had by often adding 1L gasoline are discharged from oil filler, i.e., often add 50L gasoline will
The VOC boil-off gas for having 75g is discharged, and the liquid gasoline that 75gVOC boil-off gas is equivalent to 100ml dissolves into the air.Using
The vehicle petroleum vapor recovery situation of ORVR systems is clearly better, but fuel tank evaporation tube road still has following problem：Oil filling pipe
The steam generated in refueling process cannot reasonably be recycled；The internal diameter of oil filling pipe is bigger than the internal diameter of discharge vaporization mouth
Much, and oil filler does not seal, therefore in refueling process, and only small part VOC enters canister, and it is most of then directly from
Oil filler escapes；Current vehicle fuel adsorbing device（Generally canister）Volume is generally less than normal（About 0.6 ~ 1L）, it is impossible to meet big
The fuel-steam adsorption function of amount；In addition, the dimensions due to evaporation tube road cannot be with oil filling pipe, fuel tank internal duct shape
Into good matching, it is undesirable to circulate situation for oil gas in fuel tank.
Invention content
The present invention provides a kind of evaporation tube road for ORVR systems, it is therefore intended that solves existing fuel tank VOC boil-off gas
The problem of body discharge capacity is larger.
To achieve the above object, the present invention can take following technical proposals：
Evaporation tube road of the present invention for ORVR systems, including by the extended evaporation put outward inside fuel tank
Pipe, described evaporation tube one end are respectively connected with oiling shut-off valve, the oiling limit valve in the fuel tank, the other end and position
It is connected in the canister outside the fuel tank, one end that the evaporation tube is connected with canister is undergauge structure, and caliber is by 13.6 mm of φ
It is reduced to 6.5 mm of φ；Circulation pipe is communicated on the evaporation tube, the circulation pipe is connected with oil filling pipe import side wall；The oiling
Pipe caliber is φ 25-27 mm, and limit base is provided at nozzle.
The volume of the canister is 2 liters, is provided with shut-off valve and sensor.
The circulation pipe caliber is 6.35 mm of φ.
Provided by the present invention for the evaporation tube road of ORVR systems, compared to conventional fuel oil evaporation tube road, combustion can be effectively improved
Liquid level of fuel oil in fuel tank steam pressure is distributed and flowing, substantially reduces diffusion of the refueling process intermediate fuel oil steam into air, effectively drops
Low energy wastes, while reduces environmental pollution caused by refueling process.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the present invention.
Fig. 2 is the structure diagram of oil filling pipe of the present invention.
Fig. 3 is the structure diagram in I portions in Fig. 2.
Fig. 4 is A in Fig. 3 to structure diagram.
Fig. 5 is that oil gas of the present invention moves towards schematic diagram.
Specific embodiment
As shown in Figure 1, 2, the evaporation tube road of the present invention for ORVR systems, including outside by 1 inside of fuel tank
The extended evaporation tube 2 put, 2 one end of evaporation tube are respectively connected with oiling shut-off valve 3, the oiling limit valve 4 in fuel tank 1,
The other end is connected with the canister 5 outside fuel tank 1.Specifically, inside fuel tank 1, two oiling shut-off valves 3 pass through pipeline
After linking together, it is connected via after a check valve by sebific duct with evaporation tube 2, oiling limit valve 4 is also by sebific duct with steaming
It sends out pipe 2 to be connected, so as to which evaporation tube 2, oiling shut-off valve 3, oiling limit valve 4 be made to form access, the fuel-steam in fuel tank 1 leads to
Pervaporation pipe 2 flows to canister 5.
Formation for pressure in fuel tank, the size of evaporation tube 2 play a crucial role, and the setting of size is straight
Connect the height and flow direction for influencing the steam pressure in fuel tank 1.It for 15mm, internal diameter is 13.6mm's that evaporation tube 2, which uses outer diameter,
Stainless-steel pipe, end use undergauge structure, internal diameter is reduced to 6.5mm by 13.6 mm, then by the sebific duct of FKM materials with
Canister 5 is connected, and ensures steam pressure reasonable layout and flow direction in fuel tank 1, while the vapor sorption for effectively reducing canister 5 is born
Lotus.The volume of the canister 5 increases to 2 liters or so by traditional 1 liter or so, greatly improves oil gas absorbing efficiency；In addition in carbon
Also increase shut-off valve, breather valve sensor on tank 5, can effectively control volatilization and the desorption of fuel-steam.
The circulation pipe that outer diameter is 6.35 mm of φ, wall thickness is 0.7mm is communicated on the evaporation tube 2 at oiling limit valve 4
6, circulation pipe 6 is connected with 7 import side wall of oil filling pipe；The oil filling pipe 7 is SPCF materials, and " it " font is spun by special process
Structure, and oil filler 7a is equipped with by welding manner in the shell of entrance（As shown in Figure 3）, it effectively prevent fuel-steam
Effusion.According to gas station's refueling nozzle dimensional parameters, with reference to refueling process intermediate fuel oil steam in fuel tank, the pressure of fuel pipe and stream
Dynamic state, 7 caliber of oil filling pipe are generally φ 25-27mm, in this example, outer diameter 27.1mm, internal diameter 25.1mm, and in import
Place's setting limit base 8（As shown in Figure 4）, avoid refueling nozzle insertion oil filling pipe too deep, cause refueling nozzle and oil filler gouging abrasion.
As shown in figure 5, when refueling to fuel tank 1, the fuel-steam in case is limited by oiling shut-off valve 3, oiling
Position valve 4 enters in evaporation tube 2, and a part is returned in oil filling pipe 7 through circulation pipe 6 and re-used, and another part is inhaled by canister 5
It receives.Pipeline good airproof performance of the present invention, internal oil gas circulate in order, not only increase fuel oil and add in virtual value, and
Reduce pollution of the fuel-steam to environment.
Claims (1)
1. a kind of evaporation tube road for ORVR systems, including by fuel tank（1）The internal extended evaporation tube put outward（2）, institute
State evaporation tube（2）One end is with being located at the fuel tank（1）Interior oiling shut-off valve（3）, oiling limit valve（4）It is respectively connected with, separately
One end is with being located at the fuel tank（1）Outer canister（5）It is connected, the evaporation tube（2）On be communicated with circulation pipe（6）, it is described to follow
Endless tube（6）With oil filling pipe（7）Import side wall connects；In the oil filling pipe（7）Limit base is provided at nozzle（8）；Its feature exists
In：The evaporation tube（2）With canister（5）Connected one end is undergauge structure, and caliber is reduced to φ 6.5mm by φ 13.6mm；It is described
Oil filling pipe（7）Caliber is φ 25-27mm；The canister（5）Volume for 2 liters, be provided with shut-off valve and sensor；It is described
Circulation pipe（6）Caliber is φ 6.35mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977939.8A CN105437954B (en) | 2015-12-23 | 2015-12-23 | For the evaporation tube road of ORVR systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977939.8A CN105437954B (en) | 2015-12-23 | 2015-12-23 | For the evaporation tube road of ORVR systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105437954A CN105437954A (en) | 2016-03-30 |
| CN105437954B true CN105437954B (en) | 2018-06-15 |
Family
ID=55548759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510977939.8A Active CN105437954B (en) | 2015-12-23 | 2015-12-23 | For the evaporation tube road of ORVR systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105437954B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107650673B (en) * | 2017-10-26 | 2023-07-14 | 宁波舜江汽车部件制造有限公司 | Automobile oil filling pipe assembly with return air structure |
| CN108215777A (en) * | 2017-12-28 | 2018-06-29 | 武汉腾索科技有限公司 | A kind of fuel tank pipeline structure |
| CN109552027B (en) * | 2019-01-24 | 2023-10-27 | 安徽尼威汽车动力系统有限公司 | Electronically controlled fuel system |
| CN110385981A (en) * | 2019-06-26 | 2019-10-29 | 江铃汽车股份有限公司 | Hybrid vehicle pressure-oil tank and pressure-oil tank system |
| CN110843510A (en) * | 2019-12-04 | 2020-02-28 | 郑州日产汽车有限公司 | Novel ORVR steam recovery oil pipe assembly |
| CN114962084B (en) * | 2022-04-26 | 2024-05-14 | 一汽奔腾轿车有限公司 | Fuel evaporation and emission control system and control method for hybrid electric vehicle and application of fuel evaporation and emission control system and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4821908A (en) * | 1987-09-03 | 1989-04-18 | General Motors Corporation | On-board refueling vapor recovery system |
| CN101402316A (en) * | 2007-10-01 | 2009-04-08 | 日产自动车株式会社 | Fuel tank |
| CN202707295U (en) * | 2012-07-17 | 2013-01-30 | 郑州日产汽车有限公司 | Fuel evaporation control device of engine room |
| CN103723030A (en) * | 2012-10-12 | 2014-04-16 | 日产自动车株式会社 | Reinforcement structure for a vehicle fuel filler tube |
| CN205256004U (en) * | 2015-12-23 | 2016-05-25 | 郑州日产汽车有限公司 | A evaporation pipeline for ORVR system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3948194B2 (en) * | 2000-06-27 | 2007-07-25 | 日産自動車株式会社 | Fuel tank refueling amount regulating valve and fuel tank device |
| US9404446B2 (en) * | 2013-12-04 | 2016-08-02 | Nissan North America, Inc. | Vehicle fuel vapor recovery system |
-
2015
- 2015-12-23 CN CN201510977939.8A patent/CN105437954B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4821908A (en) * | 1987-09-03 | 1989-04-18 | General Motors Corporation | On-board refueling vapor recovery system |
| CN101402316A (en) * | 2007-10-01 | 2009-04-08 | 日产自动车株式会社 | Fuel tank |
| CN202707295U (en) * | 2012-07-17 | 2013-01-30 | 郑州日产汽车有限公司 | Fuel evaporation control device of engine room |
| CN103723030A (en) * | 2012-10-12 | 2014-04-16 | 日产自动车株式会社 | Reinforcement structure for a vehicle fuel filler tube |
| CN205256004U (en) * | 2015-12-23 | 2016-05-25 | 郑州日产汽车有限公司 | A evaporation pipeline for ORVR system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105437954A (en) | 2016-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 181 Jianshe South Road, Zhongmou County, Zhengzhou City, Henan Province 450016 Patentee after: Zhengzhou Nissan Automotive Co., Ltd. Address before: 450016 No. eighth, 369 East Road, Zhengzhou economic and Technological Development Zone, Henan, China Patentee before: Zhengzhou Nissan Automotive Co., Ltd. |
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| CP02 | Change in the address of a patent holder |