CN206000651U - Breather for fuel tank degasification - Google Patents
Breather for fuel tank degasification Download PDFInfo
- Publication number
- CN206000651U CN206000651U CN201620910440.5U CN201620910440U CN206000651U CN 206000651 U CN206000651 U CN 206000651U CN 201620910440 U CN201620910440 U CN 201620910440U CN 206000651 U CN206000651 U CN 206000651U
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- CN
- China
- Prior art keywords
- breather
- flange
- oil tank
- weight valve
- tank body
- 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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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model discloses a kind of breather for fuel tank degasification, including the defecator being arranged on the weight valve at oil tank body top, being arranged on outside oil tank body and connect with weight valve and the breather for being connected weight valve and defecator, described oil tank body top has the installation through-hole for installing weight valve, and described weight valve is inserted in installation through-hole and is tightly connected with oil tank body by mounting assembly.This utility model structure is simple, improvement cost is low, security performance is high, when oil tank breather cannot be arranged or bore of ventilating cannot meet, serve and avoid fuel filling to jump rifle and prevent fuel consumption fuel tank from inhaling flat effect, improve the ventilatory effect of fuel tank.
Description
Technical field
This utility model is related to a kind of breather, in particular to a kind of breather for fuel tank degasification.
Background technology
At present all using there being breather on automotive oil tank.During diesel fuel case fuel up, maximum stream flow is up to 60L/
Min and more than, if oil tank breather internal diameter or move towards in the case that arrangement is unsatisfactory for traffic requirement, fuel oil easily to occur and adds
During note, nozzle jumps rifle, or even fuel oil is regurgitated, thus leading to the filling time long.Additionally, the fuel oil regurgitated can pollute vehicle body, impact
Consumer's Experience.In order to meet filling ability, general breather is all using increasing ventilation bore or using leading to more
Air pipe structure, but breather overstriking or increase breather quantity, then may require that more arrangement space, increase is transformed into
This.
Content of the invention
The purpose of this utility model seeks to solve the deficiency of above-mentioned background technology, provides that a kind of improvement cost is low, safety
The high breather for fuel tank degasification of performance, thus improve fuel filling ability.
For achieving the above object, the breather for fuel tank degasification designed by this utility model, including being arranged on oil
The weight valve of case bodies top, it is arranged on outside oil tank body and the defecator with weight valve connection and be used for being connected weight
Power valve and the breather of defecator, described oil tank body top has the installation through-hole for installing weight valve, described gravity
Valve is inserted in installation through-hole and is tightly connected with oil tank body by mounting assembly.
Further, described mounting assembly is included first flange and is matched with first flange the second flange of use, setting
Gasket seal between first flange and second flange and bolt assembly, described first flange is arranged on oil tank body top
On the installation through-hole in portion, described second flange is arranged on the outer ring of weight valve, described first flange, gasket seal and second
Flange all has several mutually corresponding bolts hole along its circumference, and described first flange, gasket seal and second flange are led to
Cross the bolt assembly locking running through its bolt hole.
Further, described mounting assembly also includes the cover plate being fixedly installed in second flange.
Yet further, one end of described breather is fixedly connected with the gas access end of weight valve by the first clip,
The other end of described breather is fixedly connected with the gas outlet end of defecator by the second clip.
Further, described breather is fixed on the outside of oil tank body by single tube intermediate plate.
Compared with prior art, advantage of the present utility model is as follows：
First, this utility model is by setting up weight valve at oil tank body top, by the elevating function of weight valve float,
Meet the ventilation efficiency of fuel filling and the gas compensation function of fuel consumption.
Second, this utility model passes through to arrange defecator in the end of breather, fill for by the air of weight valve
Point filter, it is to avoid impurity blocks the porch of valve body.
Third, this utility model structure is simple, improvement cost is low, security performance is high so that cannot cloth in oil tank breather
When bore of putting or ventilate cannot meet, serve and avoid fuel filling to jump rifle and prevent fuel consumption fuel tank from inhaling flat work
With improve the ventilatory effect of fuel tank.
Brief description
Fig. 1 is a kind of structural representation of the breather for fuel tank degasification；
Wherein：1- oil tank body, 2- weight valve, 3- defecator, 4- breather, 5- installation through-hole, 6- mounting assembly,
6.1- first flange, 6.2- second flange, 6.3- gasket seal, 6.4- bolt assembly, 6.5- cover plate, 7.1- first clip,
7.2- second clip, 8- single tube intermediate plate.
Specific embodiment
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
Be used for as shown in Figure 1 the breather of fuel tank degasification, including be arranged on oil tank body 1 top weight valve 2,
It is arranged on oil tank body 1 outside and the defecator 3 with weight valve 2 connection and be used for being connected weight valve 2 and defecator 3
Breather 4.Oil tank body 1 top has the installation through-hole 5 for installing weight valve 2, and weight valve 2 is inserted in installation through-hole 5
It is tightly connected with oil tank body 1 by mounting assembly 6.The gas of the first clip 7.1 and weight valve 2 is passed through in one end of breather 4
Arrival end is fixedly connected, and the other end of breather 4 is fixedly connected with the gas outlet end of defecator 3 by the second clip 7.2.
Breather 4 is fixed on the outside of oil tank body 1 by single tube intermediate plate 8.
In technique scheme, mounting assembly 6 is included first flange 6.1 and is matched the second of use with first flange 6.1
Flange 6.2, the gasket seal 6.3 being arranged between first flange 6.1 and second flange 6.2 and bolt assembly 6.4, first
Flange 6.1 is arranged on the installation through-hole 5 at oil tank body 1 top, and second flange 6.2 is arranged on the outer ring of weight valve 2, the first method
Blue 6.1, gasket seal 6.3 and second flange 6.2 all have several mutually corresponding bolts hole, the first method along its circumference
Blue 6.1, gasket seal 6.3 and second flange 6.2 are locked by running through the bolt assembly 6.4 of its bolt hole.Mounting assembly 6
Also include the cover plate 6.5 being fixedly installed in second flange 6.2.
Work process of the present utility model：Oil tank body 1 air pressure inside superatmospheric during fuel filling, inside and outside differential pressure makes
Obtain air in oil tank body 1 and pass through weight valve 2 to outside discharge.According to diesel oil fill speed 60L/min, volume of fuel tank 58L, by
C1apeyron equation PV=nRT can obtain, and is worth for △ Pmin=3.49KPa/min when pressure change rate is minimum, and fuel tank is smooth
Fill it up with less than 1min, and weight valve 2 meets and reached before the pressure reduction of oil tank body 1 internal gas pressure and atmospheric pressure rises to 3.49Kpa
Ventilation flow rate to 60L/min, you can meet and require.
At present through verification experimental verification, demonstrate,prove when oil tank body 1 inside and outside differential pressure reaches 3Kpa, ventilation is 35L/min's
Weight valve 2, the whole filling time is 2min, but is reached using the ventilation when oil tank body 1 inside and outside differential pressure is 0.5Kpa
The weight valve of 60L/min, both can meet and fill it up with fuel oil in 1min.
When fuel up, when pasta raises, oil tank body 1 internal pressure increases so that air is from weight valve 2 gas outlet
Place flows out, and the flow of air circulation can ensure that when being not less than 60L/min that ventilation is smooth, when pasta is increased to the floating of weight valve 2
When subdivision, because buoyancy leads to float to rise so that weight valve 2 is closed, prevent diesel oil from overflowing.
When fuel consumption, because fuel level declines, the float of weight valve 2 sinks, and weight valve 2 is opened, thus there being foot
Enough air enter in fuel tank through defecator 3 to maintain the air pressure in oil tank body 1 it is ensured that engine fuel supply is suitable
Freely.
When this utility model is installed, if being arranged on plastic fuel tank, this breather can directly be made using hot plate welding
Obtain weight valve 2 to be welded on oil tank body 1, then connect breather 4 and defecator 3, you can；If being arranged on metallic oil tank
On, then need using mounting assembly 6, weight valve 2 to be arranged on oil tank body 1, then connect breather 4 and defecator 3.
This breather is easy to install, is generally applicable to current diesel fuel case, is used by actual entrucking, also demonstrates
Ventilatory effect is very good.
The above, specific embodiment only of the present utility model is it is noted that any be familiar with those skilled in the art
In technical scope disclosed in this utility model for the member, the change or replacement that can readily occur in, all should cover in this utility model
Protection domain within.
Claims (5)
1. a kind of breather for fuel tank degasification it is characterised in that：Including the weight valve being arranged on oil tank body (1) top
(2) defecator (3) that, is arranged on outside oil tank body (1) and connects with weight valve (2) and be used for being connected weight valve (2)
With the breather (4) of defecator (3), described oil tank body (1) top has the installation through-hole for installing weight valve (2)
(5), described weight valve (2) is inserted in installation through-hole (5) and is tightly connected with oil tank body (1) by mounting assembly (6).
2. the breather for fuel tank degasification according to claim 1 it is characterised in that：Described mounting assembly (6) bag
Include first flange (6.1) match with first flange (6.1) use second flange (6.2), be arranged on first flange (6.1)
Gasket seal (6.3) and second flange (6.2) between and bolt assembly (6.4), described first flange (6.1) is arranged on
On the installation through-hole (5) at oil tank body (1) top, described second flange (6.2) is arranged on the outer ring of weight valve (2), and described
One flange (6.1), gasket seal (6.3) and second flange (6.2) all have several mutually corresponding bolts along its circumference
Hole, described first flange (6.1), gasket seal (6.3) and second flange (6.2) are by running through the bolt group of its bolt hole
Part (6.4) is locked.
3. the breather for fuel tank degasification according to claim 2 it is characterised in that：Described mounting assembly (6) is also
Including the cover plate (6.5) being fixedly installed in second flange (6.2).
4. the breather for fuel tank degasification according to claim 1 it is characterised in that：The one of described breather (4)
End is fixedly connected with the gas access end of weight valve (2) by the first clip (7.1), and the other end of described breather (4) passes through
Second clip (7.2) is fixedly connected with the gas outlet end of defecator (3).
5. the breather for fuel tank degasification according to claim 1 or 4 it is characterised in that：Described breather (4) is led to
Cross the outside that single tube intermediate plate (8) is fixed on oil tank body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620910440.5U CN206000651U (en) | 2016-08-19 | 2016-08-19 | Breather for fuel tank degasification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620910440.5U CN206000651U (en) | 2016-08-19 | 2016-08-19 | Breather for fuel tank degasification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206000651U true CN206000651U (en) | 2017-03-08 |
Family
ID=58197007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620910440.5U Active CN206000651U (en) | 2016-08-19 | 2016-08-19 | Breather for fuel tank degasification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206000651U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630419A (en) * | 2019-10-10 | 2019-12-31 | 中船黄埔文冲船舶有限公司 | Automatically controlled formula automatic gas removal equipment and boats and ships |
| CN110774887A (en) * | 2019-11-26 | 2020-02-11 | 宁波舜江汽车部件制造有限公司 | Air guide pipe for automobile refueling pipe and manufacturing method thereof |
-
2016
- 2016-08-19 CN CN201620910440.5U patent/CN206000651U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110630419A (en) * | 2019-10-10 | 2019-12-31 | 中船黄埔文冲船舶有限公司 | Automatically controlled formula automatic gas removal equipment and boats and ships |
| CN110630419B (en) * | 2019-10-10 | 2021-12-28 | 中船黄埔文冲船舶有限公司 | Automatically controlled formula automatic gas removal equipment and boats and ships |
| CN110774887A (en) * | 2019-11-26 | 2020-02-11 | 宁波舜江汽车部件制造有限公司 | Air guide pipe for automobile refueling pipe and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |