CN108301948B - Linkage type main and auxiliary oil tank oil supply system - Google Patents
Linkage type main and auxiliary oil tank oil supply system Download PDFInfo
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- CN108301948B CN108301948B CN201810217081.9A CN201810217081A CN108301948B CN 108301948 B CN108301948 B CN 108301948B CN 201810217081 A CN201810217081 A CN 201810217081A CN 108301948 B CN108301948 B CN 108301948B
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- auxiliary
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- oil
- oil tank
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
- F02M37/0088—Multiple separate fuel tanks or tanks being at least partially partitioned
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a linkage type main and auxiliary oil tank oil supply system, and belongs to the field of engineering machinery. The auxiliary fuel tank mainly comprises a main fuel tank and more than one auxiliary fuel tank, wherein the auxiliary fuel tanks are respectively connected with the main fuel tank through a fuel pipeline, the bottom of each auxiliary fuel tank is higher than the top of the main fuel tank, a one-way valve is arranged between each auxiliary fuel tank and the main fuel tank, and the position of each one-way valve is lower than the bottom of the main fuel tank; the pressure setting range of the check valve is 7.8 (the height H1 of the auxiliary oil tank is less than or equal to the height difference delta H of the main oil tank) and less than or equal to 7.8 (the height H of the main oil tank is less than or equal to the height difference delta H of the main oil tank). The invention has simple structure, realizes the automatic control of the liquid level of the main auxiliary oil tank, has high safety and good reliability, and can set the oil supply sequence of the auxiliary oil tanks at all levels when the multi-level auxiliary oil tanks are used in parallel. The invention is mainly used for oil supply of engineering machinery.
Description
Technical Field
The invention belongs to the field of engineering machinery, and particularly relates to a linkage type main and auxiliary oil tank oil supply system.
Background
The engineering machinery has large fuel consumption and large working environment difference, and needs to carry enough fuel oil at one time under special working conditions, and the fuel supply of a single main fuel tank can not meet the requirements and one or more fuel auxiliary fuel tanks need to be added.
The prior main and auxiliary oil tank oil supply system mainly has the following two schemes: the method comprises the steps that firstly), a manual control valve is connected between a main oil tank and an auxiliary oil tank, when the liquid level of the main oil tank drops to a certain degree, a user manually opens a switch of the control valve, and the auxiliary oil tank supplies oil to the main oil tank; this solution has the following drawbacks: 1) When the auxiliary oil tank is filled, the control valve needs to be manually closed, and when the auxiliary oil tank is forgotten to be closed, fuel oil can overflow from the main oil tank, so that the safety is poor; 2) In the use, need the user to judge main oil tank liquid level service condition and come manual opening bellytank control valve, convenient operation nature is poor, and the user judges that can cause the fuel to spill over from main oil tank when improper, and the security is poor. Two) the electromagnetic valve is connected between the main oil tank and the auxiliary oil tank, and the electromagnetic valve of the auxiliary oil tank is controlled to be opened or closed by the controller according to the liquid level signal of the main oil tank. This solution has the following drawbacks: the control system is relatively complex, has poor reliability and high cost.
Disclosure of Invention
The invention aims to overcome the defects and provide the linkage type main and auxiliary oil tank oil supply system which has a simple structure, realizes automatic control of the liquid level of the main and auxiliary oil tanks, has high safety and good reliability, and can set the oil supply sequence of each stage of auxiliary oil tanks when the multi-stage auxiliary oil tanks are used in parallel.
The linkage type main auxiliary oil tank oil supply system comprises a main oil tank and more than one auxiliary oil tank, wherein the auxiliary oil tanks are respectively connected with the main oil tank through a fuel pipeline, the bottom position of each auxiliary oil tank is higher than the top of the main oil tank, a one-way valve is arranged between each auxiliary oil tank and the main oil tank, and the position of each one-way valve is lower than the bottom of the main oil tank.
Further, the pressure setting range of the check valve is 7.8 x (the height H1 of the auxiliary fuel tank+the height difference Δh of the main auxiliary fuel tank) < 7.8 x (the height H of the main fuel tank+the height difference Δh of the main auxiliary fuel tank) < 7.8 x.
Further, the pressure of the two or more auxiliary fuel tanks is set through the one-way valve, so that the fuel supply sequence of the auxiliary fuel tanks is controlled.
Furthermore, the auxiliary oil tank with small set pressure value is supplied with oil preferentially, and the liquid level of the main oil tank and the auxiliary oil tank is lowered simultaneously and controlled in a linkage way when the auxiliary oil tank supplies oil.
Further, a manual control valve is arranged at the bottom of the main oil tank.
Further, a manual control valve is arranged on the fuel pipeline between the main fuel tank and the auxiliary fuel tank.
Further, the one-way valve is arranged at the bottom of the main oil tank.
Further, the one-way valve is connected with a fuel pipeline.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the liquid level difference pressure value of the main oil tank and the auxiliary oil tank, the liquid level of the main oil tank and the auxiliary oil tank is automatically controlled through the one-way valve;
2. a manual control valve is additionally arranged at the bottom of the main oil tank or in a connecting loop between the main oil tank and the auxiliary oil tank, and when the auxiliary oil tank or a fuel oil pipeline leaks oil, a single auxiliary oil tank loop can be manually closed; when the oil supply system works normally, the manual control valve is in a normally open state, manual control is not needed, and safety and convenience of the oil supply system are greatly improved;
3. the auxiliary oil tank does not need to be added with a filter element alone, and can share the filter element with the main oil tank, so that the cost is saved;
4. according to the invention, the pressure of each one-way valve is set, the oil supply sequence of each auxiliary oil tank is controlled, when the pressure of the one-way valve is set in a value range and the auxiliary oil tank with a small set pressure value supplies oil preferentially, the liquid level of the main oil tank and the auxiliary oil tank is lowered simultaneously and controlled in a linkage way;
5. when the auxiliary oil tank is used for filling the main oil tank with fuel oil, the main oil tank oil port can realize an automatic anti-overflow function through the one-way valve, so that the safety is higher.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the valve core of the check valve;
fig. 3 is a schematic diagram of a parallel connection structure of the multi-stage auxiliary fuel tank of the present invention.
In the figure, 1, a main oil tank; 2. a one-way valve; 3. a fuel oil pipeline; 4. and a secondary oil tank.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
embodiment one: as shown in fig. 1, the oil supply system of the linkage type main and auxiliary oil tanks comprises a main oil tank 1 and an auxiliary oil tank 4, wherein the auxiliary oil tank 4 is connected with the main oil tank 1 through a fuel pipeline 3, the bottom position of the auxiliary oil tank 4 is higher than the top of the main oil tank 1, a one-way valve 2 is arranged between the auxiliary oil tank 4 and the main oil tank 1, and the position of the one-way valve 2 is lower than the bottom of the main oil tank 1; the pressure setting range of the check valve 2 is 7.8 (the height H1 of the auxiliary oil tank 4+the height difference delta H of the main oil tank 4). Ltoreq.7.8 (the height H of the main oil tank 1+the height difference delta H of the main oil tank 4). Ltoreq.7.8.
The check valve 2 can be arranged on the bottom of the main oil tank 1 or the fuel pipeline 3 between the main oil tank and the auxiliary oil tank during installation, and meanwhile, a manual control valve is arranged on the bottom of the main oil tank 1 or the fuel pipeline 3 between the main oil tank and the auxiliary oil tank.
As shown in fig. 2, the working principle of the invention is as follows: the pressure F of the liquid level of the main oil tank 1 acting on the check valve 2 plus the spring pressure Fs of the check valve 2 is balanced in two directions by the contact surface of the pressure F1 of the liquid level of the auxiliary oil tank 4 acting on the check valve 2 plus the valve core contact surface of the check valve 2 against the spring reaction force Fs', namely: f+fs=f1+fs'. When the liquid level of the main oil tank 1 is lowered, F is reduced, fs 'is reduced, and when Fs' is reduced to 0, the check valve 2 is opened and the auxiliary oil tank 4 starts to supply oil along with the continuous lowering of the liquid level of the main oil tank 1; when the liquid level of the auxiliary oil tank 4 is lowered, F1 is reduced, and when the forces in two directions of the check valve 2 are balanced again, the check valve 2 is closed, and the auxiliary oil tank 4 stops supplying oil. A manual control valve is additionally arranged at the bottom of the main oil tank 1 or in a connecting loop between the main oil tank and the auxiliary oil tank, and when the auxiliary oil tank 4 or the fuel oil pipeline 3 leaks oil, a single auxiliary oil tank loop can be manually closed; when the oil supply system works normally, the manual control valve is in a normally open state, manual control is not needed, and safety and convenience of the oil supply system are greatly improved.
Embodiment two: as shown in fig. 3, the number of the auxiliary tanks 4 is more than two, and the auxiliary tanks 4 are connected in parallel, and a check valve 2 is respectively arranged between each auxiliary tank 4 and the main tank 1, otherwise the same as the first embodiment.
In the present embodiment, when the auxiliary fuel tanks 4 are used, the pressure of each auxiliary fuel tank 4 is set through the check valve 2, the fuel supply sequence of each auxiliary fuel tank 4 is controlled, the auxiliary fuel tank 4 with a small set pressure value supplies fuel preferentially, and when the auxiliary fuel tank 4 supplies fuel, the liquid levels of the main fuel tank 1 and the auxiliary fuel tank 4 drop simultaneously and are controlled in a linkage manner.
Claims (7)
1. The utility model provides a interlock formula main and auxiliary oil tank oil feed system, includes main oil tank (1), its characterized in that: the auxiliary fuel tank also comprises more than one auxiliary fuel tank (4), wherein the auxiliary fuel tanks (4) are respectively connected with the main fuel tank (1) through fuel pipelines (3), the bottom of each auxiliary fuel tank (4) is higher than the top of the main fuel tank (1), a one-way valve (2) is arranged between each auxiliary fuel tank (4) and the main fuel tank (1), and the position of each one-way valve (2) is lower than the bottom of the main fuel tank (1);
the pressure at the two ends of the check valve is balanced statically, the pressure setting range of the check valve (2) is 7.8 (the height H1 of the auxiliary oil tank is less than or equal to the height difference delta H of the main auxiliary oil tank), the pressure setting range of the check valve (2) is less than or equal to 7.8 (the height H of the main oil tank is less than or equal to the height difference delta H of the main auxiliary oil tank), and after the oil quantity of the main oil tank is reduced, the fuel in the auxiliary oil tank flows to one side of the main oil tank through the check valve so as to realize automatic oil supply.
2. The linked main and auxiliary tank oil supply system according to claim 1, wherein: the pressure of the two or more auxiliary fuel tanks (4) is set through the one-way valve (2), so as to control the fuel supply sequence of the auxiliary fuel tanks (4).
3. The linked main and auxiliary tank oil supply system according to claim 2, wherein: the auxiliary oil tank (4) with small set pressure value is used for supplying oil preferentially, and the liquid level of the main oil tank (1) and the liquid level of the auxiliary oil tank (4) are simultaneously lowered and controlled in a linkage way when the auxiliary oil tank (4) supplies oil.
4. The linked main and auxiliary tank oil supply system according to claim 3, wherein: the bottom of the main oil tank (1) is provided with a manual control valve.
5. The linked main and auxiliary tank oil supply system according to claim 3, wherein: a manual control valve is arranged on the fuel pipeline (3) between the main fuel tank (1) and the auxiliary fuel tank (4).
6. The interlocking main and auxiliary tank oil supply system according to any one of claims 1 to 5, wherein: the one-way valve (2) is arranged at the bottom of the main oil tank (1).
7. The interlocking main and auxiliary tank oil supply system according to any one of claims 1 to 5, wherein: the one-way valve (2) is connected with the fuel pipeline (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810217081.9A CN108301948B (en) | 2018-03-16 | 2018-03-16 | Linkage type main and auxiliary oil tank oil supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810217081.9A CN108301948B (en) | 2018-03-16 | 2018-03-16 | Linkage type main and auxiliary oil tank oil supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108301948A CN108301948A (en) | 2018-07-20 |
| CN108301948B true CN108301948B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810217081.9A Active CN108301948B (en) | 2018-03-16 | 2018-03-16 | Linkage type main and auxiliary oil tank oil supply system |
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| CN (1) | CN108301948B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19755056A1 (en) * | 1997-12-11 | 1999-06-17 | Bosch Gmbh Robert | Level measuring device for a fuel tank of a motor vehicle |
| EP2655114A4 (en) * | 2010-12-21 | 2016-03-30 | Volvo Lastvagnar Ab | A tank arrangement and method for operating a vehicle tank arrangement |
| CN102251892A (en) * | 2011-07-29 | 2011-11-23 | 重庆长安汽车股份有限公司 | Automobile fuel tank assembly |
| CN205086674U (en) * | 2015-09-11 | 2016-03-16 | 广西柳工机械股份有限公司 | Engineering machinery fuel tank |
| CN205468528U (en) * | 2016-02-03 | 2016-08-17 | 中联重机股份有限公司 | Oil supply device |
| CN207989200U (en) * | 2018-03-16 | 2018-10-19 | 山东临工工程机械有限公司 | Linkage type major-minor fuel tank oil supply system |
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2018
- 2018-03-16 CN CN201810217081.9A patent/CN108301948B/en active Active
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| CN108301948A (en) | 2018-07-20 |
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