CN207140786U - Automobile double fuel tank connectivity structure - Google Patents
Automobile double fuel tank connectivity structure Download PDFInfo
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- CN207140786U CN207140786U CN201720897688.7U CN201720897688U CN207140786U CN 207140786 U CN207140786 U CN 207140786U CN 201720897688 U CN201720897688 U CN 201720897688U CN 207140786 U CN207140786 U CN 207140786U
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- fuel tank
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- diffuser
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Abstract
It the utility model is related to a kind of automobile double fuel tank connectivity structure, including the engine connected by triple valve, it is main, auxiliary fuel tank, it is in inverted T-shape outside the triple valve, triple valve Upper vertical section connects with the main return line of engine pan low pressure oil way, two side branch one end of the triple valve bottom are big end, the other end is small end, big end and lower end respectively with pair, main fuel tank connects, trunnion is also sequentially provided between the big end and small end, diffuser, the lower end of the vertical section connects with diffuser, the cross-sectional area of vertical section is less than the cross-sectional area of the diffuser immediately below it；The vertical section has one section of horizontal contraction section to insert the diffuser in its bottom, and the oil-out of the contraction section is located in diffuser and towards the direction of main fuel tank, and the cross-sectional area of the contraction section is less than the cross-sectional area of vertical section.This case utilizes Venturi effect, and engine work has oil return generation, and triple valve produces Venturi effect, and fuel oil is actively entered to main fuel tank.
Description
Technical field
Motor vehicle fuel feed system technical field is the utility model is related to, is to be related to a kind of automobile double fuel tank specifically
Connectivity structure.
Background technology
Tankage directly determines the endurance of automobile, and for the identical automobile of engine, fuel tank is bigger
Run more remote.Instantly logistic industry develops rapidly, and vehicle, which is equipped with big volume fuel tank, turns into trend.But large tank is empty to cloth
Between require high, double tank designs overcome vehicle single-sided arrangement space to limit, and can adequately and reasonably utilize the limited of vehicle both sides
Space, the volume of super large can avoid influence of the different regions fuel oil price difference to logistics cost.Because double fuel tanks are arranged in vehicle frame
The left and right sides, can the connection between two fuel tanks turns into effectively utilize the key of the big volume advantage of double fuel tanks.
Main flow connected mode connects for tank bottoms simply connected pipe at present, i.e., is integrated at both sides tank bottoms drain oil position
Joint, connected by an oil pipe.This connected mode utilizes u shape pipe principles, under natural pressure and Action of Gravity Field, makes left and right two
Side fuel tank internal liquid level keeps balance.According to its principle and deployment scenarios, there are the following problems for this simply connected tubular construction：One,
By operation of nature, no exterior power inputs, and the oil mass supply condition between two fuel tanks is unstable, it is impossible to ensures the combustion of auxiliary fuel tank
Oil can supplement main fuel tank in time；Two, it is arranged in tank bottoms communicating pipe, considers fuel tank strength problem, connection bore can not be too
Greatly, flow is limited and is easy to be blocked by the impurity in oil；Three, it is arranged in tank bottoms communicating pipe, almost belongs to vehicle coordinate most
Low, the road clearance is small, is easily hit by splash, security risk be present；Four, during oiling, major-minor fuel tank intercommunication, two fuel tanks can not
Fuel oil is filled it up with completely.
Utility model content
The utility model is overcome the deficiencies in the prior art, adapts to real needs, designs a kind of automobile double fuel tank connection
Structure.
In order to realize the purpose of this utility model, the utility model uses following technological means：
A kind of automobile double fuel tank connectivity structure, including engine, main fuel tank, auxiliary fuel tank, the engine are indulged positioned at vehicle frame
Beam front end, main fuel tank, auxiliary fuel tank are respectively positioned in the middle part of longitudinal beam, and the engine, main fuel tank, auxiliary fuel tank are connected by triple valve
It is logical, it is in inverted T-shape outside the triple valve, triple valve Upper vertical section and the main return line of engine pan low pressure oil way connect
Logical, two side branch one end of the triple valve bottom are big end, and the other end is small end, and the big end connects with auxiliary fuel tank, small end
Connected with main fuel tank, the cross-sectional area held greatly is more than the cross-sectional area of small end, and larynx is also sequentially provided between the big end and small end
Pipe, diffuser, the lower end of the vertical section connect with diffuser, and the cross-sectional area of vertical section is less than the diffusion immediately below it
The cross-sectional area of section；The vertical section has one section of horizontal contraction section to insert the diffuser in its bottom, the contraction section
Oil-out is located in diffuser and towards the direction of main fuel tank, and the cross-sectional area of the contraction section is less than the cross section of vertical section
Product.
The cross-sectional area of the contraction section be vertical section at cross-sectional area 1 4-1 2.
The diffuser includes one section of diffusion, two sections of diffusion, the trunnion, one section of diffusion, the cross-sectional area for spreading two sections
The cross-sectional area held greatly is incrementally increased and is respectively less than successively, and the cross-sectional area of the vertical section is less than the cross section of two sections of diffusion
Product.
The big end of the triple valve is respectively communicated with the top of auxiliary fuel tank, main fuel tank with small end.
The main fuel tank, auxiliary fuel tank are respectively arranged at longitudinal beam on both sides of the middle.
Bypass line is provided between the main return line and main fuel tank, the bypass line is provided with by main return line
The check valve connected to main fuel tank.
Bypass line is provided between the main return line and main fuel tank, the bypass line is provided with by main return line
The straight coupling connected to main fuel tank, the internal diameter of the straight coupling are smaller 4-6mm than the internal diameter of the bypass line.
The beneficial effects of the utility model：
1. utilizing Venturi effect, engine work has oil return generation, and triple valve can produce Venturi effect, secondary oil
Case fuel oil vacuum caused by triple valve is pressed into main fuel tank, and engine oil return is power source, there is the triple valve phase of Venturi effect
When in oil pump, result is that fuel oil is actively entered to main fuel tank；
2. triple valve and connecting line are communicated in the top of auxiliary fuel tank, main fuel tank, major and minor oil in the prior art is avoided
It is arranged in blocking, the shock equivalent risk that tank bottoms easily occur the communicating pipe of case；
3. bypass line controls the pressure of main return line and then controls it to input to the power of triple valve, auxiliary fuel tank is controlled
Input the flow of main fuel tank fuel oil；
After 4. triple valve is arranged at the fuel-quantity transducer with filtration, protection is not easy to be blocked communicating pipe；
5. major-minor fuel tank is relatively independent, during oiling, major-minor fuel tank is without mutual stream；
6. structural principle is simple, easy to use.
Brief description of the drawings
Fig. 1 is overall structure block diagram of the present utility model；
Fig. 2 is the concrete structure schematic diagram of triple valve in Fig. 1.
1 is engine, and 2 be main fuel tank, and 3 be auxiliary fuel tank, and 4 be triple valve, and 401,402 be respectively big end and small end, and 403 are
Trunnion, 404 be two sections of diffusion, and 405 be vertical section, and 406 be one section of diffusion, and 407 be contraction section, and 5 be bypass line, and 6 be unidirectional
Valve, 7 be main return line.
Embodiment
Embodiment：Referring to Fig. 1-2.
The utility model discloses a kind of automobile double fuel tank connectivity structure, including engine 1, main fuel tank 2, auxiliary fuel tank 3, institute
State engine and be located at longitudinal beam front end, main fuel tank 2, auxiliary fuel tank 3 are respectively positioned in the middle part of longitudinal beam, the engine 1, main fuel tank
2nd, auxiliary fuel tank 3 is connected by triple valve 4, and the outside of triple valve 4 is in inverted T-shape, and the Upper vertical section 405 of triple valve 4 is with starting
The main return line 7 of machine chassis low pressure oil way connects, and two side branch one end of the bottom of triple valve 4 hold 401 to be big, the other end
For small end 402, the big end 401 connects with auxiliary fuel tank 3, and small end 402 connects with main fuel tank 2, and the cross-sectional area at big end 401 is more than
The cross-sectional area of small end 402, trunnion 403, diffuser, the vertical section are also sequentially provided between the big end 401 and small end 402
405 lower end connects with diffuser, and the cross-sectional area of vertical section 405 is less than the cross-sectional area of the diffuser immediately below it；
The vertical section 405 has one section of horizontal contraction section 407 to insert the diffuser in its bottom, the contraction section 407 it is fuel-displaced
Mouth is located in diffuser and is less than the transversal of vertical section 405 towards the direction of main fuel tank 2, the cross-sectional area of the contraction section 407
Area.
The cross-sectional area of the contraction section 407 be vertical section 405 at cross-sectional area 1 4-1 2.
The diffuser includes one section 406 of diffusion, two section 404 of diffusion, the trunnion 403, one section 406 of diffusion, diffusion two
The cross-sectional area of section 404 incrementally increases and is respectively less than the cross-sectional area at big end 401, the cross-sectional area of the vertical section 405 successively
Cross-sectional area of two section 404 less than diffusion.
Due to having special variable-diameter structure, i.e. contraction section 407 inside triple valve 4, fluid or gas pressure puberty can be made
Change;And the structure of the internal contraction section 407 of triple valve 4 makes fluid can only be along one equivalent to the effect of integrated individual event valve
Direction is flowed, will not reverse flow.There is reducing at trunnion 403, be to preferably coordinate being vacuum formed at contraction section 407
Effect, because being incrementally increased successively from trunnion 403, the cross-sectional area for spreading one section 406, spreading two section 404 and being respectively less than big end
401 cross-sectional area, this section storage flow are small, it is easier to produce vacuum area.
In engine operation process, the fuel oil of backflow is entered via main return line 7 by the vertical section 405 of triple valve 4 to be received
Contracting section 407, at contraction section 407, section reduces, and the flow velocity increase of fuel oil, is formed around the right-hand member exit of contraction section 407
One area of low pressure, i.e. elliptical region in Fig. 2, the liquid at 401 ends of big end is driven to be co-flowed at small end 402.
Triple valve 4 of the present utility model utilizes Venturi effect, and engine work has oil return generation, and triple valve can produce
Raw Venturi effect, auxiliary fuel tank fuel oil vacuum caused by triple valve are pressed into main fuel tank, and engine oil return is power source, there is literary mound
In effect triple valve equivalent to oil pump, result is that fuel oil is actively entered to main fuel tank.
The big end 401 of the triple valve 4 is respectively communicated with the top of auxiliary fuel tank 3, main fuel tank 2 with small end 402.Avoid existing
It is arranged in blocking, the shock equivalent risk that tank bottoms easily occur the communicating pipe for having major and minor fuel tank in technology.
The main fuel tank 2, auxiliary fuel tank 3 are respectively arranged at longitudinal beam on both sides of the middle.
Bypass line 5 is provided between the main return line 7 and main fuel tank 2, the bypass line 5 is provided with by main oil return
The check valve 6 that pipeline 7 connects to main fuel tank 2.Check valve 6 has Opening pressure limit value, and Opening pressure limit value is predeterminable good, or series connection
One pressure sensor, opens check valve 6 when pressure sensor reaches preset value, and the oil return of engine is now by unidirectional
Valve 6 is dividedly led into main fuel tank 2, and bypass line 5 controls the pressure of main return line 7 and then controls it to input to the dynamic of triple valve
Power, the flow of control auxiliary fuel tank input main fuel tank fuel oil.
Check valve 6 can also be substituted by straight coupling, and the internal diameter of the straight coupling is smaller 4- than the internal diameter of the bypass line 5
6mm, internal diameter diminishes at this straight coupling, and certain back pressure is formed between bypass line 5 and main return line 7, due to straight-through
The internal diameter of joint is smaller than the internal diameter of bypass line, and fluid flows at straight coupling by certain resistance, therefore when flow is smaller
Body still enters triple valve by main return line 7, and when flow increases, back pressure caused by reducing is overcome at straight coupling, by
Main fuel tank 2 is dividedly led into herein, thus controls the flow of auxiliary fuel tank input main fuel tank fuel oil.The specification of straight coupling can pass through thing
First calculating basis, which is actually needed, is chosen, and serves the effect similar to check valve herein.
After triple valve 4 is arranged at the fuel-quantity transducer with filtration, protection is not easy to be blocked communicating pipe；Major-minor fuel tank
Relatively independent, during oiling, major-minor fuel tank is without mutual stream.
Embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model, it is every
The equivalents or the direct or indirect technical field for being used in correlation made using the utility model specification and accompanying drawing content,
Similarly it is included in scope of patent protection of the present utility model.
Claims (7)
1. a kind of automobile double fuel tank connectivity structure, including engine (1), main fuel tank (2), auxiliary fuel tank (3), the engine are located at
Longitudinal beam front end, main fuel tank (2), auxiliary fuel tank (3) are respectively positioned in the middle part of longitudinal beam, it is characterised in that：The engine (1),
Main fuel tank (2), auxiliary fuel tank (3) are connected by triple valve (4), are in inverted T-shape outside the triple valve (4), triple valve (4) top
Vertical section (405) connects with the main return line (7) of engine pan low pressure oil way, and the two of triple valve (4) bottom are collateral
Pipe one end is big end (401), and the other end be small end (402), and the big end (401) connects with auxiliary fuel tank (3), small end (402) and
Main fuel tank (2) connects, and the big cross-sectional area for holding (401) is more than the cross-sectional area of small end (402), the big end (401) and small end
(402) trunnion (403), diffuser are also sequentially provided between, the lower end of the vertical section (405) connects with diffuser, vertical section
(405) cross-sectional area is less than the cross-sectional area of the diffuser immediately below it；The vertical section (405) has one in its bottom
Duan Shuiping contraction section (407) inserts the diffuser, and the oil-out of the contraction section (407) is located in diffuser and towards master
The direction of fuel tank (2), the cross-sectional area of the contraction section (407) are less than the cross-sectional area of vertical section (405).
2. automobile double fuel tank connectivity structure according to claim 1, it is characterised in that：The contraction section (407) it is transversal
Area for vertical section (405) place cross-sectional area 1 4-1 2.
3. automobile double fuel tank connectivity structure according to claim 1, it is characterised in that：The diffuser includes one section of diffusion
(406), spread two sections (404), the trunnion (403), diffusion one section (406), spread two sections (404) cross-sectional area successively by
Step increase and the cross-sectional area for being respectively less than big end (401), the cross-sectional area of the vertical section (405) are less than diffusion two sections (404)
Cross-sectional area.
4. automobile double fuel tank connectivity structure according to claim 1, it is characterised in that：The big end of the triple valve (4)
(401) it is respectively communicated with small end (402) in the top of auxiliary fuel tank (3), main fuel tank (2).
5. automobile double fuel tank connectivity structure according to claim 1, it is characterised in that：The main fuel tank (2), auxiliary fuel tank
(3) it is respectively arranged at longitudinal beam on both sides of the middle.
6. automobile double fuel tank connectivity structure according to claim 1, it is characterised in that：The main return line (7) and master
Bypass line (5) is provided between fuel tank (2), the bypass line (5) is provided with from main return line (7) to main fuel tank (2) even
Logical check valve (6).
7. automobile double fuel tank connectivity structure according to claim 1, it is characterised in that：The main return line (7) and master
Bypass line (5) is provided between fuel tank (2), the bypass line (5) is provided with from main return line (7) to main fuel tank (2) even
Logical straight coupling, the internal diameter of the straight coupling are smaller 4-6mm than the internal diameter of the bypass line (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720897688.7U CN207140786U (en) | 2017-07-24 | 2017-07-24 | Automobile double fuel tank connectivity structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720897688.7U CN207140786U (en) | 2017-07-24 | 2017-07-24 | Automobile double fuel tank connectivity structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207140786U true CN207140786U (en) | 2018-03-27 |
Family
ID=61676490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720897688.7U Expired - Fee Related CN207140786U (en) | 2017-07-24 | 2017-07-24 | Automobile double fuel tank connectivity structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207140786U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107215204A (en) * | 2017-07-24 | 2017-09-29 | 江铃汽车股份有限公司 | Automobile double fuel tank connectivity structure |
-
2017
- 2017-07-24 CN CN201720897688.7U patent/CN207140786U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107215204A (en) * | 2017-07-24 | 2017-09-29 | 江铃汽车股份有限公司 | Automobile double fuel tank connectivity structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210425 Address after: 330001 No. 509 North Avenue, Yingbin Road, Jiangxi, Nanchang Patentee after: JIANGLING MOTORS Co.,Ltd. Address before: 330001 No. 509 North Avenue, Yingbin Road, Jiangxi, Nanchang Patentee before: JIANGLING MOTORS Co.,Ltd. Patentee before: JMC HEAVY DUTY VEHICLE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180327 Termination date: 20210724 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |