CN109334441B - Fuel tank ventilation system - Google Patents
Fuel tank ventilation system Download PDFInfo
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- CN109334441B CN109334441B CN201811456812.1A CN201811456812A CN109334441B CN 109334441 B CN109334441 B CN 109334441B CN 201811456812 A CN201811456812 A CN 201811456812A CN 109334441 B CN109334441 B CN 109334441B
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- pipeline
- support frame
- fuel tank
- valve
- outlet
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- 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
-
- 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
- B60K2015/03523—Arrangements of the venting tube
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- 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)
Abstract
The invention discloses a fuel tank ventilation system, which comprises a refueling limit valve, a support frame, a liquid accumulation storage, a first pipeline and a second pipeline, wherein the refueling limit valve is arranged on the support frame; the supporting frame is fixed in the accommodating cavity of the oil tank, and the oiling limit valve is arranged on the supporting frame; the effusion storage is fixed on the support frame, a buffer cavity is arranged in the effusion storage, an air inlet and an air outlet are respectively arranged on the side wall of the effusion storage, and a liquid outlet is arranged at the bottom end of the effusion storage; the air inlet, the air outlet and the liquid outlet are communicated with the buffer cavity; the refueling metering valve is connected to the gas inlet through a first pipeline, and the gas outlet is connected to the carbon tank through a second pipeline; the liquid outlet is communicated with the oil tank. According to the invention, the liquid outlet is arranged in the accumulated liquid storage cavity, so that the oil overflowing from the oil tank is intercepted in the accumulated liquid storage cavity and flows back to the oil tank through the liquid outlet, and the ventilation fault caused by blockage of the ventilation pipeline by the overflowing oil is avoided.
Description
Technical Field
The invention relates to the technical field of automobile fuel tanks, in particular to a fuel tank ventilation system capable of effectively preventing a ventilation pipeline from being blocked by fuel oil.
Background
The prior art venting system for a fuel tank is shown in fig. 1, and comprises a refueling limit valve 10, a gravity valve 20 and a vent line 40, wherein the refueling limit valve 10 and the gravity valve 20 are generally welded directly on a tank shell 30, the vent line 40 is generally arranged along the outer side of the tank shell 30, one end of the vent line is connected to the refueling limit valve 10, the other end of the vent line is connected to a carbon canister, the vent line is arranged along the outer side of the tank shell 30, although the mounting arrangement of the vent line can be simplified, the vent line 40 is limited by the shape of the outer side surface of the tank shell 30, when a recess is arranged on the tank shell 30, if a groove 50 matched with a reinforcing beam of a vehicle body is arranged on the tank shell 30, the vent line 40 is also arranged along the groove 50, so that when oil sloshing flows out from the refueling limit valve 10, the oil can be accumulated at the position of the groove 50, thereby affecting ventilation.
Disclosure of Invention
The invention aims to provide a fuel tank ventilation system, which solves the defects in the prior art and can avoid ventilation faults caused by blockage of a ventilation pipeline by overflowed oil liquid in the using process.
The invention provides a fuel tank ventilation system, which comprises a refueling limit valve, a support frame, a liquid storage device, a first pipeline and a second pipeline, wherein the refueling limit valve is arranged on the support frame;
the support frame is fixed in an accommodating cavity of the oil tank, and the oiling limit valve is arranged on the support frame;
the liquid accumulation storage is fixed on the support frame, a buffer cavity is arranged in the liquid accumulation storage, an air inlet and an air outlet are respectively arranged on the side wall of the liquid accumulation storage, and a liquid outlet is arranged at the bottom end of the liquid accumulation storage; the air inlet, the air outlet and the liquid outlet are communicated with the buffer cavity;
the refueling metering valve is connected to the gas inlet through the first pipeline, and the gas outlet is connected to the carbon tank through the second pipeline; the liquid outlet is communicated with the oil tank.
The ventilation system for the fuel tank is characterized in that the support frame is provided with a guide limiting sliding groove, and the support frame is provided with a guide limiting sliding rail matched with the guide limiting sliding groove;
the guide limiting sliding groove is an I-shaped sliding groove.
The ventilation system for the fuel tank is characterized in that the support frame is provided with a support seat, and the support seat is provided with a ventilation hole.
The ventilation system for the fuel tank comprises a support column and a support frame body, wherein the support frame body is fixedly connected with the support frame body at a first end, and a combination plate is arranged at a second end of the support column; the combination board is provided with a connecting column;
the support column is provided with two at least, and is different the spliced pole on the support column is used for respectively with the top and the bottom fixed connection who hold the chamber.
The ventilation system for the fuel tank comprises a support column, a support frame body and a connecting plate, wherein the support column comprises an upper support column and a lower support column, a first end of the upper support column is fixed on the support frame body, and a second end of the upper support column is fixedly connected to the fuel tank through the connecting plate;
the upper supporting column comprises a first supporting part and a second supporting part, a first bending part is arranged on the first supporting part, a second bending part is arranged on the second supporting part, and the bending direction of the first bending part is opposite to that of the second bending part.
The ventilation system for the fuel tank is characterized in that the liquid storage device further comprises a plurality of partition plates, the partition plates are fixed in the buffer cavity, and the partition plates are distributed in the buffer cavity in a staggered mode so as to form a gas flow channel between the gas inlet and the gas outlet.
A fuel tank venting system as described above wherein optionally the outlet port is higher than the inlet port.
The fuel tank ventilation system as described above, wherein optionally, the fuel tank ventilation system further includes a first gravity valve and a third pipeline, the liquid accumulation storage is provided with a redundant air inlet, and the redundant air inlet is communicated to the buffer cavity;
the first gravity valve is fixed on the support frame, the first end of the third pipeline is connected to the first gravity valve, and the second end of the third pipeline is communicated with the redundant air inlet.
The fuel tank ventilation system as described above, optionally, the fuel tank ventilation system further includes a second gravity valve, the second gravity valve is detachably mounted on the liquid outlet, a clamping groove is provided on the liquid outlet, and a clamping strip fastened with the clamping groove is provided on the second gravity valve.
The ventilation system for the fuel tank comprises a support frame, a support frame and at least one pipeline clamping piece, wherein the support frame is provided with a plurality of pipeline clamping pieces, and the pipeline clamping pieces are fixed on the support frame.
Compared with the prior art, the invention has the advantages that the accumulated liquid storage device is arranged, the accumulated liquid storage cavity device is provided with the air inlet, the air outlet and the liquid outlet, and the air inlet and the air outlet are responsible for normal ventilation, so that oil gas evaporated by the oil tank enters through the air inlet, then flows out of the air outlet and finally enters the carbon tank. Through set up the liquid outlet in hydrops storage chamber and make the fluid that overflows from the oil tank obtain the interception in the hydrops memory and flow back to the oil tank through the liquid outlet, thereby avoided the ventilation line to be caused the trouble of ventilating by the fluid shutoff that overflows.
Drawings
FIG. 1 is a schematic view of a prior art mounting arrangement for a tank venting system;
FIG. 2 is a schematic view of an installation structure of a tank ventilation system provided by an embodiment of the invention;
FIG. 3 is a schematic structural diagram of a tank venting system according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a support bracket in the tank venting system according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a support column in the tank venting system provided by the embodiment of the invention;
FIG. 6 is a schematic view of an installation structure of a fuel filling limit valve in a fuel tank ventilation system provided by an embodiment of the invention;
FIG. 7 is a schematic structural diagram of a fuel filling limit valve in a fuel tank venting system according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a effusion cell storage device in a tank venting system in accordance with an embodiment of the present invention;
FIG. 9 is a schematic diagram of an internal structure of a effusion cell storage device in a tank venting system according to an embodiment of the present invention;
fig. 10 is a schematic view of an installation structure of a liquid outlet in an oil tank ventilation system according to an embodiment of the present invention.
Description of the reference numerals in the prior art:
10-oil filling limit valve, 20-gravity valve, 30-oil tank shell, 40-vent pipeline and 50-recess.
Description of reference numerals of embodiments of the invention: 1-oiling limit valve, 11-guiding limit chute, 12-elastic limit foot, 2-support frame, 21-oiling limit valve installation position, 22-guiding limit slide rail, 23-limit table, 24-support column, 241-combination plate, 2411-connecting column, 242-first support part, 243-second support part, 25-support column body, 3-accumulated liquid storage, 31-buffer cavity, 32-air inlet, 33-air outlet, 34-liquid outlet, 341-clamping groove, 35-partition plate, 36-redundant air inlet, 4-first pipeline, 5-second pipeline, 6-first gravity valve, 7-third pipeline, 8-second gravity valve and 81-clamping strip.
Detailed Description
The embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
As shown in fig. 2-3 and fig. 8, the embodiment of the invention discloses a fuel tank ventilation system, which comprises a refueling limit valve 1, a support frame 2, a liquid accumulation storage 3, a first pipeline 4 and a second pipeline 5; the supporting frame 2 is fixed in an accommodating cavity of the oil tank 100, and the oiling limit valve 1 is installed on the supporting frame 2; an oil filling limit valve installation position 21 is arranged on the support frame 2, and the oil filling limit valve 1 is installed on the oil filling limit valve installation position 21.
The effusion storage 3 is fixed on the support frame 2, a buffer cavity 31 is arranged in the effusion storage 3, an air inlet 32 and an air outlet 33 are respectively arranged on the side wall of the effusion storage 3, and a liquid outlet 34 is arranged at the bottom end of the effusion storage 3; the gas inlet 32, the gas outlet 33 and the liquid outlet 34 are all communicated with the buffer cavity 31. The refueling metering valve 1 is connected to the gas inlet 32 through the first pipeline 4, and the gas outlet 33 is connected to a carbon tank through the second pipeline 5; the liquid outlet 34 is communicated with an oil tank. The liquid accumulation storage device 3 is used for storing fuel leaked from the oil filling metering valve 1 due to oil liquid shaking and discharging the leaked fuel through the liquid outlet, and the problem that the fuel is accumulated in a pipeline to cause blockage is avoided due to the arrangement of the liquid accumulation storage device 3.
Specifically, as shown in fig. 4 and 7, a guiding and limiting chute 11 is arranged on the refueling metering valve 1, and a guiding and limiting slide rail 22 matched with the guiding and limiting chute 11 is arranged on the support frame 2; wherein the guide limit chute 11 is an i-shaped chute. The guide limit sliding groove 11 is matched with the guide limit sliding rail 22 to realize the fixed limit of the oiling limit valve 1. The oil filling limit valve 1 cannot be limited to slide up and down along the support frame 2 by the matching of the guide limit sliding chute 11 and the guide limit sliding rail 22, so that the oil filling limit valve 1 is provided with an elastic limit pin 12, and the support frame 2 is provided with a limit table 23 matched with the elastic limit pin 12, as shown in fig. 6. The limit table 23 is matched with the elastic limit foot 12 to further limit the oiling limit valve 1, so that the oiling limit valve 1 cannot slide up and down along the limit table 23.
Specifically, as shown in fig. 5, the support frame 2 includes a support column 24 and a support frame body 25, a first end of the support column 24 is fixedly connected to the support frame body 25, and a second end of the support column 24 is provided with a combination plate 241; the connection plate 241 is provided with a connection column 2411. The connection post 2411 is a raised cylinder for the purpose of being embedded into the interior of the incompletely consolidated tank housing during the blow molding process of the tank to achieve the purpose of being fixed with the tank housing. The support column 24 is fixed on the oil tank shell through the combination plate 241, so that the contact area of the support column 24 with the oil tank shell is increased, and the firmness of consolidation is facilitated. It can be understood that at least two support columns 24 are provided, and the connecting columns on different support columns 24 are respectively used for being fixedly connected with the top end and the bottom end of the accommodating cavity. Two support columns 24 are a set of in this embodiment, are upper support column and bottom suspension dagger respectively, and upper support column and bottom suspension dagger are all fixed on support frame body 25, and upper support column with the bottom suspension dagger is on same straight line, and upper support column is used for and holds the top fixed connection in chamber, that is exactly with the top fixed connection of oil tank casing inside wall, and the bottom suspension dagger is used for and holds the bottom fixed connection in chamber, also has the bottom fixed connection of oil tank casing inside wall. The second end of the upper support column is fixedly connected to the oil tank through the coupling plate 241.
Further, the upper support column includes a first support part 242 and a second support part 243, the first support part 242 is provided with a first bending part, the second support part 243 is provided with a second bending part, and the bending direction of the first bending part is opposite to the bending direction of the second bending part. The upper support column comprises two bent elastic pieces, and the design is used for buffering the deformation of the oil tank in the using process. The lower support column can have the same structure with last support column, of course the lower support column also can adopt to constitute by three backup pad, and the steel sheet of I shape is constituteed in three backup pad in order to play the effect of support.
Further, as shown in fig. 8 to 9, the effusion cell storage 3 further includes a plurality of partition plates 35, the partition plates 35 are fixed in the buffer cavity 31, and the plurality of partition plates 35 are distributed in the buffer cavity in a staggered manner, so as to form a gas flow channel between the gas inlet 32 and the gas outlet 33. The provision of the partition 35 increases the obstruction of the flow of leaked fuel from the inlet port 32 to the outlet port 33, and prevents the fuel from exiting the outlet port 33 to block the conduit as much as possible. Further, the air outlet 33 is higher than the air inlet 32. The purpose of the outlet port 33 being higher than the inlet port 32 is also to prevent fuel from exiting the outlet port 33 as far as possible. The leaked fuel stays in the liquid accumulation storage 3 and then flows back to the fuel tank through the liquid outlet 34, so that the liquid outlet 34 is arranged at the lowest position of the liquid accumulation storage 3 to facilitate the fuel to flow out. When refuelling limit valve 1 had like this and reveals, when fluid rocked, in a small amount of fuel flowed out from the valve body and gets into hydrops memory 3, then flowed out from the liquid outlet and return the oil tank, avoided the fuel gathering to cause the jam and ventilate unsmoothly at the pipeline.
Further, as shown in fig. 10, a second gravity valve 8 is further disposed at the liquid outlet, the second gravity valve 8 is detachably mounted on the liquid outlet 34, specifically, a clamping groove 341 is disposed on the liquid outlet 34, and a clamping strip 81 fastened to the clamping groove 341 is disposed on the second gravity valve 8. The second gravity valve 8 is arranged to enable the fuel in the buffer chamber 31 to only flow out of the liquid outlet 34 and not to flow into the buffer chamber 31 from the liquid outlet 34.
Further, the fuel tank ventilation system further comprises a first gravity valve 6 and a third pipeline 7, a redundant air inlet 36 is arranged on the accumulated liquid storage 3, and the redundant air inlet 36 is communicated to the buffer cavity 31; the first gravity valve 6 is fixed on the support frame 2, a first end of the third pipeline 7 is connected to the first gravity valve 6, and a second end of the third pipeline 7 is communicated with the redundant air inlet 36. The arrangement of the first gravity valve 6 and the oil filling limit valve 1 have the same purpose, the first gravity valve 6 and the oil filling limit valve 1 are arranged on two sides of an oil tank, the first gravity valve 6 is designed as a redundancy design, when fuel oil is completely submerged in the oil filling limit valve 1 when an automobile runs on a bumpy road, the oil filling limit valve 1 cannot work, and therefore the first gravity valve 6 is designed to continuously enable oil gas evaporated from the oil tank to enter through an air inlet and then flow out of an air outlet and finally enter a carbon tank for adsorption.
The fuel tank ventilation system further comprises at least one pipeline clamping piece 9, and the pipeline clamping piece 9 is fixed on the support frame 2. Pipeline joint spare 9 sets up along the direction of arranging of pipeline, and pipeline joint spare 9 is used for fixed pipeline, and what can understand is pipeline joint spare 9 and pipeline lock, makes things convenient for the installation and the dismantlement of pipeline like this.
The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.
Claims (8)
1. A fuel tank ventilation system is characterized by comprising a refueling limit valve, a support frame, a liquid accumulation storage, a first pipeline and a second pipeline;
the support frame is fixed in an accommodating cavity of the oil tank, and the oiling limit valve is arranged on the support frame;
the liquid accumulation storage is fixed on the support frame, a buffer cavity is arranged in the liquid accumulation storage, an air inlet and an air outlet are respectively arranged on the side wall of the liquid accumulation storage, and a liquid outlet is arranged at the bottom end of the liquid accumulation storage; the air inlet, the air outlet and the liquid outlet are communicated with the buffer cavity;
the refueling metering valve is connected to the gas inlet through the first pipeline, and the gas outlet is connected to the carbon tank through the second pipeline; the liquid outlet is communicated with the oil tank;
the support frame comprises a support column and a support frame body, wherein a first end of the support column is fixedly connected with the support frame body, and a second end of the support column is provided with a combination plate; the combination board is provided with a connecting column;
the number of the support columns is at least two, and the connecting columns on different support columns are respectively used for being fixedly connected with the top end and the bottom end of the accommodating cavity;
the support columns comprise upper support columns and lower support columns, the first ends of the upper support columns are fixed on the support frame body, and the second ends of the upper support columns are fixedly connected to an oil tank through the combination plate;
the upper supporting column comprises a first supporting part and a second supporting part, a first bending part is arranged on the first supporting part, a second bending part is arranged on the second supporting part, and the bending direction of the first bending part is opposite to that of the second bending part.
2. A fuel tank venting system as set forth in claim 1 wherein: the oiling limit valve is provided with a guide limit sliding groove, and the support frame is provided with a guide limit sliding rail matched with the guide limit sliding groove;
the guide limiting sliding groove is an I-shaped sliding groove.
3. A fuel tank venting system as set forth in claim 2 wherein: the oiling limit valve is provided with an elastic limit foot, and the support frame is provided with a limit platform matched with the elastic limit foot.
4. A fuel tank venting system as set forth in claim 1 wherein: the hydrops memory still includes a plurality of baffles, the baffle is fixed in the buffer chamber, and is a plurality of the baffle is crisscross to be distributed in the buffer chamber, with the air inlet with form gas flow channel between the gas outlet.
5. A fuel tank venting system as set forth in claim 1 wherein: the air outlet is higher than the air inlet.
6. A fuel tank venting system as set forth in claim 1 wherein: the fuel tank ventilation system further comprises a first gravity valve and a third pipeline, a redundant air inlet is formed in the accumulated liquid storage device, and the redundant air inlet is communicated to the buffer cavity;
the first gravity valve is fixed on the support frame, the first end of the third pipeline is connected to the first gravity valve, and the second end of the third pipeline is communicated with the redundant air inlet.
7. A fuel tank venting system as set forth in claim 1 wherein: the fuel tank ventilation system further comprises a second gravity valve, the second gravity valve is detachably mounted on the liquid outlet, a clamping groove is formed in the liquid outlet, and a clamping strip fastened with the clamping groove is arranged on the second gravity valve.
8. A fuel tank venting system as set forth in claim 1 wherein: the fuel tank ventilation system further comprises at least one pipeline clamping piece, and the pipeline clamping piece is fixed on the supporting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456812.1A CN109334441B (en) | 2018-11-30 | 2018-11-30 | Fuel tank ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811456812.1A CN109334441B (en) | 2018-11-30 | 2018-11-30 | Fuel tank ventilation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109334441A CN109334441A (en) | 2019-02-15 |
| CN109334441B true CN109334441B (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811456812.1A Active CN109334441B (en) | 2018-11-30 | 2018-11-30 | Fuel tank ventilation system |
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| CN (1) | CN109334441B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2886366B1 (en) * | 2005-05-24 | 2007-07-06 | Inergy Automotive Systems Res | LIQUID TANK AIR SUPPLY SYSTEM |
| US9605803B2 (en) * | 2013-02-08 | 2017-03-28 | Brunswick Corporation | Apparatus and methods to couple fuel components to a fuel tank |
| BR102014010655A2 (en) * | 2014-05-02 | 2015-12-01 | Aethra Sistemas Automotivos Sa | integrated fuel tank venting system, metallic and with organo-metallic coating |
| US10400713B2 (en) * | 2014-09-24 | 2019-09-03 | Eaton Corporation | Electrically controlled fuel system module |
| CN205190084U (en) * | 2015-10-22 | 2016-04-27 | 上汽通用汽车有限公司 | Outside pipeline of oil tank system and oil tank system |
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2018
- 2018-11-30 CN CN201811456812.1A patent/CN109334441B/en active Active
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| CN109334441A (en) | 2019-02-15 |
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Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
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