CN209305349U

CN209305349U - Exhaust apparatus, fuel tank and automobile

Info

Publication number: CN209305349U
Application number: CN201822136554.0U
Authority: CN
Inventors: 徐飞
Original assignee: Hebei Shi Chang Automobile Component Co Ltd
Current assignee: Hebei Shichang Auto Parts Co Ltd
Priority date: 2018-12-19
Filing date: 2018-12-19
Publication date: 2019-08-27
Anticipated expiration: 2028-12-19

Abstract

The utility model relates to automobile technical fields, and in particular to exhaust apparatus, including valve body and shell；Valve body is for being arranged in the cavity of fuel tank, and siding is connected with the siding of fuel tank；The cavity of valve body and the cavity of fuel tank connect；Shell is located at the top of valve body in the vertical direction；The bottom plate of shell is connected with the siding of valve body, and the bottom plate of body is equipped with through-hole；The cavity of shell and the cavity of valve body are connected by the through-hole；The top of shell is equipped with for the connector with piping connection.The shell of storage leakage fuel oil and fuel tank are integrated into overall structure by the exhaust apparatus, it can be connected between fuel tank and canister by a root canal road, avoid be arranged between pipeline and liquid trap two connectors, to keeping the connection structure between fuel tank and canister more stable, reduce joint due to vibration existing for the risk that disengages of gas leakage even pipeline.

Description

Exhaust apparatus, fuel tank and automobile

Technical field

The utility model relates to automobile technical fields, and in particular to exhaust apparatus, fuel tank and automobile.

Background technique

Fuel tank is the important composition component of automobile, for storing fuel oil.Since fuel oil is volatile, can be full of in fuel tank Boil-off gas, therefore, the pressure in fuel tank can increase with it.To balance the pressure in fuel tank, avoiding causing danger, firing Exhaust pipe is set on fuel tank, by exhaust pipe by fuel steam discharge into ambient atmosphere.However, fuel-steam can reduce air Quality pollutes the environment, and fuel-steam direct emission will also result in the wasting of resources.

To solve the above problems, canister is set between fuel tank and engine in the prior art, filling absorption in canister The strong active carbon of ability；After gas inflow canister in fuel tank, it is tightly held by activated carbon, the gas when automobile starting, in canister Body is flowed into engine by inlet manifold to burn.Using which, it both can be reduced exhaust gas discharge, and can also make full use of combustion Material, the oil consumption for reducing automobile.

However, automobile is in the process of moving, fuel tank inevitably shakes, and fuel oil can be by pipeline leakage extremely In canister, canister is damaged.Therefore, liquid trap is set on the pipeline also between fuel tank and canister in the prior art； The fuel oil flowed out out of fuel tank is deposited in liquid trap, to avoid enter into canister.

But in above-mentioned technical proposal, liquid trap is arranged on the pipeline between fuel tank and canister, so that pipeline sum aggregate Two connectors are increased between liquid device；Since automobile can generate vibration under steam, joint is easy to happen gas leakage, even There are the risks of disengagement；Once joint is not connected firmly, it is be easy to cause automobile flameout, can also make leaked gas enter and drive Sail room, penetrating odor will affect comfort level by bus.

Utility model content

In view of this, the utility model embodiment provides exhaust apparatus, fuel tank and automobile, it is intended to solve the prior art Joint between middle pipeline and liquid trap is easy to happen the problem of gas leakage even disengages.

For this purpose, the utility model embodiment in a first aspect, providing exhaust apparatus, comprising:

Valve body, for being arranged in the cavity of fuel tank, and siding is connected with the siding of fuel tank；The cavity of the valve body It connects with the cavity of fuel tank；With

Shell is located at the top of the valve body in the vertical direction；The siding phase of the bottom plate of the shell and the valve body Even, and the bottom plate of the shell is equipped with through-hole；The cavity of the shell and the cavity of the valve body are mutually passed through by the through-hole It is logical；The top of the shell is equipped with for the connector with piping connection.

As a kind of perferred technical scheme, exhaust apparatus further include:

Spool is arranged in the cavity of the valve body, and is slidably connected with the siding of the valve body；The spool is buoyancy Material, and touch and for being abutted when the liquid level of fuel tank rises to setting height with the base top of the shell for blocking The through-hole.

As a kind of perferred technical scheme, the siding of the valve body is equipped with slideway；The spool be equipped with for The sliding block that the slideway is slidably matched；

The top of the spool is equipped with for gasket compatible with the through-hole.

As a kind of perferred technical scheme, the valve body is in tubbiness, and bottom is equipped with opening；On the siding of the valve body Equipped with oil inlet, and the cavity of the cavity of the valve body and fuel tank is connected by the opening and the oil inlet.

As a kind of perferred technical scheme, exhaust apparatus further include:

Baffle is arranged in the cavity of the shell, and the siding of surrounding and the shell is tightly connected；In vertical direction On, the cavity of the shell is divided into mutually independent upper cavity and lower chamber by the baffle；The upper cavity passes through described Connector connects with pipeline；The cavity of the lower chamber and the valve body is connected by the through-hole；The baffle is equipped with Gas vent, and the upper cavity and the lower chamber are connected by the gas vent.

As a kind of perferred technical scheme, the quantity of the baffle is multiple；In the vertical direction, each baffle is side by side Setting；

Gas vent is equipped on each baffle, and orthographic projection of the gas vent on each baffle in horizontal plane is equal Row.

As a kind of perferred technical scheme, the orthographic projection of the baffle in perpendicular is V-shaped, and the gas vent Positioned at the recess of the baffle.

As a kind of perferred technical scheme, exhaust apparatus further include:

Obstructing tube is arranged in the cavity of the shell, and is connected by the connector with pipeline.

The second aspect of the utility model embodiment, provides fuel tank, including the exhaust apparatus；The fuel tank The siding of siding and the valve body mutually weld, and welding surface is high-density polyethylene material.

The third aspect of the utility model embodiment, provides automobile, including the fuel tank.

By adopting the above-described technical solution, the technological progress that the utility model obtains is:

Valve body is arranged in the cavity of fuel tank, and siding is connected with the siding of fuel tank；The cavity and fuel tank of valve body Cavity connect；Therefore, the boil-off gas in fuel tank is able to enter in the cavity of valve body, and when fuel tank shakes When fuel oil be also able to enter in the cavity of valve body.

In the vertical direction, shell is located at the top of valve body；The bottom plate of shell is connected with the siding of valve body, and the bottom of shell Plate is equipped with through-hole；The cavity of shell and the cavity of valve body are connected by through-hole；Therefore, the intracorporal boil-off gas of valve is along through-hole Into in the cavity of shell, and fuel oil also can be along the cavity that through-hole enters shell.For the combustion from fuel tank internal leakage Oil, shell plays temporary effect, and shell is located at the top of valve body, and therefore, the intracorporal fuel oil of shell can flow back along through-hole In to valve body, fuel tank is finally back to out of valve body.

The top of shell is equipped with the connector with piping connection, and therefore, the intracorporal boil-off gas of shell enters pipeline by connector In；Pipeline is connected with canister, and therefore, the boil-off gas in fuel tank finally enters canister along pipeline and handled, and can balance Pressure in fuel tank also can be reduced exhaust gas discharge, the oil consumption that can also be made full use of fuel, reduce automobile.

The beneficial effects of adopting the technical scheme are that storage is leaked fuel oil by the exhaust apparatus in this programme Shell and fuel tank be integrated into overall structure, can be connected between fuel tank and canister by a root canal road, compared to firing Liquid trap is set on the pipeline between fuel tank and canister, and this programme avoids two be arranged between pipeline and liquid trap and connects Head so that the connection structure between fuel tank and canister is more stable, reduce joint due to vibration existing for gas let out The risk that leakage even pipeline disengages.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the schematic diagram of the internal structure of exhaust apparatus provided by the embodiment of the utility model；

Fig. 2 is the assembling schematic diagram of valve body provided by the embodiment of the utility model and spool；

Fig. 3 is the assembling schematic diagram of another angle of valve body provided by the embodiment of the utility model and spool；

Fig. 4 is the schematic diagram of the internal structure of shell provided by the embodiment of the utility model；

Fig. 5 is the schematic diagram of the another embodiment of the internal structure of shell provided by the embodiment of the utility model；

Fig. 6 is the perspective view of exhaust apparatus provided by the embodiment of the utility model；

Fig. 7 is the connection schematic diagram of exhaust apparatus provided by the embodiment of the utility model, fuel tank and pipeline；

Fig. 8 is the connection schematic diagram of fuel tank in the prior art, pipeline, liquid trap and canister.

Description of symbols:

10- valve body, 101- slideway, 102- opening, 103- oil inlet, 104- ring flange, 11- spool, 111- sliding block, 112- Gasket, 20- shell, 201- through-hole, 202- upper cavity, 203- lower chamber, 204- housing, 205- cover board, 21- connector, 22- gear Plate, 221- gas vent, 23- obstructing tube, 30- fuel tank, 40- pipeline, 50- canister, 60- liquid trap.

Specific embodiment

In being described below, for illustration and not for limitation, the tool of such as particular system structure, technology etc is proposed Body details, to understand thoroughly the utility model embodiment.However, it will be clear to one skilled in the art that there is no these The utility model also may be implemented in the other embodiments of detail.In other situations, omit to well-known system, The detailed description of apparatus, circuit and method, in case unnecessary details interferes the description of the utility model.

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing.

The utility model embodiment provides a kind of exhaust apparatus, and in conjunction with shown in Fig. 1, Fig. 6 and Fig. 7, exhaust apparatus includes Valve body 10 and shell 20.Valve body 10 is for being arranged in the cavity of fuel tank 30, and siding is connected with the siding of fuel tank 30.Valve The cavity of body 10 and the cavity of fuel tank 30 connect.Shell 20 is located at the top of valve body 10 in the vertical direction.Shell 20 Bottom plate is connected with the siding of valve body 10, and the bottom plate of shell 20 is equipped with through-hole 201.The cavity of shell 20 and the cavity of valve body 10 It is connected by through-hole 201.The top of shell 20 is equipped with the connector 21 for connecting with pipeline 40.

Boil-off gas in fuel tank 30 is able to enter in the cavity of valve body 10；Boil-off gas in valve body 10 is along through-hole 201 enter in the cavity of shell 20；Boil-off gas in shell 20 is entered in pipeline 40 by connector 21；Pipeline 40 and canister 50 It is connected, therefore, the gas in pipeline 40 eventually enters into be handled in canister 50.Fuel steam discharge in fuel tank 30 enters carbon In tank 50, the pressure in fuel tank 30 can be balanced, exhaust gas direct emission is also can be reduced and enters in ambient atmosphere, it can be with secondary benefit With the oil consumption of the fuel-steam, reduction automobile that are adsorbed in canister 50.

When automobile shakes in the process of moving, the fuel oil in fuel tank 30 is able to enter in the cavity of valve body 10；Valve Fuel oil in body 10 is along the cavity that through-hole 201 enters shell 20.The fuel oil of 20 pairs of shell leakages plays temporary effect.Due to Shell 20 is located at the top of valve body 10, and therefore, the fuel oil in shell 20 can also be back in valve body 10 along through-hole 201, and Fuel tank 30 is back to out of valve body 10.

In the present embodiment, shell 20 can play the role of liquid trap 60 in the prior art.As shown in connection with fig. 8, existing skill Liquid trap 60 is set on the pipeline 40 in art between fuel tank 30 and canister 50, is deposited in from the fuel oil of 30 internal leakage of fuel tank In liquid trap 60, so that fuel oil be avoided to flow into canister 50, damage to canister 50；However, in the prior art in pipeline 40 Two connectors are increased between liquid trap 60, since automobile inevitably generates vibration under steam, joint is easy Gas leakage occurs, even there is the risk that pipeline 40 and liquid trap 60 disengage.Once joint is not connected firmly, it be easy to cause Automobile flameout can also make the fuel-steam of leakage enter driver's cabin, the comfort level of penetrating odor influence by bus.

As shown in connection with fig. 7, the shell 20 of storage leakage fuel oil and fuel tank 30 are integrated into overall structure in the present embodiment, It can be connected between fuel tank 30 and canister 50 by a root canal road 40, reduce two between pipeline 40 and liquid trap 60 and connect Head reduces joint and exists because of vibration so that the connection structure between fuel tank 30 and canister 50 is more stable, reliable Gas leakage even pipeline disengage risk.

Shell 20 is integrated on fuel tank 30, can play the role of temporary leakage fuel oil and the fuel oil of leakage is made to exist It is back under gravity in fuel tank 30.

As one embodiment, in conjunction with shown in Fig. 1, Fig. 2 and Fig. 3, exhaust apparatus further includes spool 11.The setting of spool 11 exists In the cavity of valve body 10, and it is slidably connected with the siding of valve body 10.Spool 11 is buoyant material, and for the liquid in fuel tank 30 Position, which abuts when rising to setting height with the base top of shell 20, touches and for blocking through-hole 201.

When automobile fuel filler, fuel oil injects in fuel tank 30, to lead after avoiding fuel tank 30 from filling it up with fuel oil, due to continuing to refuel It causes fuel oil to leak in canister 50 along pipeline 40, spool 11 is set in the present embodiment.When oiling, the liquid level in fuel tank 30 is gradually It increases, the buoyancy that spool 11 is subject to is gradually increased, and under buoyancy, spool 11 rises along the vertical direction；At this point, through-hole 201 It keeping it turned on, the gas in fuel tank 30 can be flowed along through-hole 201, therefore, pressure and extraneous guarantor in fuel tank 30 Maintain an equal level weighing apparatus, convenient for refueling.

When the liquid level of fuel tank 30 rises to setting height, spool 11 rises to the top of valve body 10, and with shell 20 Bottom plate abut, while blocking through-hole 201；At this point, through-hole 201 is closed state, the gas in fuel tank 30 can not flow, Therefore, the pressure in fuel tank 30 increases, to make refueling nozzle jump rifle and stop refueling；Simultaneously as through-hole 201 is closed form State, to also can be avoided in fuel leakage to shell 20.

In the present embodiment, spool 11 can select plastic foam material, foam glass material or polyformaldehyde (polyformaldehyde, english abbreviation POM) material.Specifically, spool 11 is polyformaldehyde material.In the present embodiment, valve body 10 can use following connection type with spool 11: guide rod be arranged on valve body 10, and guide rod is vertically arranged；Spool 11 is sheathed on On guide rod, and it is slidably matched with guide rod.Valve body 10 and spool 11 can also use the connection type of sliding-rail sliding.

In the present embodiment, as shown in connection with fig. 3, spool 11 convenient for increasing the contact area with fuel oil, increases in inverted bowl-shape Strong buoyancy of the fuel oil to spool 11.

In the present embodiment, referring to figs. 1 and 2, the siding of valve body 10 is equipped with slideway 101.Spool 11, which is equipped with, to be used In the sliding block 111 being slidably matched with slideway 101.In order to reduce the difficulty of processing of valve body 10, also for convenient for assembly, the present embodiment The connection type matched between middle valve body 10 and spool 11 using slideway 101 and sliding block 111.Specifically, slideway 101 is set vertically It sets；Specifically, the shape of spool 11 is adapted with the shape of slideway 101, it can be corner block, rectangular block, cylinder or rotary table etc. Shape.

In the present embodiment, referring to figs. 1 and 2, the top of spool 11 is equipped with for sealing compatible with through-hole 201 Pad 112.Gasket 112 plays sealing function, can block through-hole 201 completely, gas is avoided to leak.Specifically, shell 20 Bottom plate is located at the intracorporal end face of 10 chamber of valve body equipped with sealing ring；Sealing ring is adapted with the shape of through-hole 201, and for it is close The sealing cooperation of packing 112.Sealing ring is matched with gasket 112, can enhance sealing effect.

As one embodiment, in conjunction with shown in Fig. 1 and Fig. 3, valve body 10 is in tubbiness, and bottom is equipped with opening 102.Valve body 10 Siding be equipped with oil inlet 103, and the cavity of the cavity of valve body 10 and fuel tank 30 passes through 102 and 103 phase of oil inlet of being open Perforation.

Fuel oil in fuel tank 30 is entered in the cavity of valve body 10 by opening 102 and oil inlet 103, to make valve body 10 Interior liquid level is consistent with the liquid level in fuel tank 30, avoids the liquid level in valve body 10 and the liquid level in fuel tank 30 from occurring high Degree is poor, the fuel oil accumulated in valve body 10 is caused to flow into shell 20 when vehicle shakes.

In addition, the liquid level in valve body 10 is consistent with the liquid level in fuel tank 30, can also when refueling, work as fuel tank Spool 11 floats and blocks through-hole 201 when liquid level in 30 reaches setting height.If liquid level and fuel tank 30 in valve body 10 There is difference in height in interior liquid level, in fact it could happen that spool 11 blocks through-hole when the liquid level in fuel tank 30 does not reach setting height 201, cause refueling nozzle to jump rifle and stop refueling, so that the amount of fuel in fuel tank 30 be made to reduce；Fuel tank 30 may also occur When interior liquid level reaches setting height, spool 11 do not float up to the position for blocking through-hole 201 yet, cause refueling nozzle to continue to refuel, To make excessive fuel oil flow into shell 20.

Specifically, valve body 10 is formed by siding winding, it is not provided with top plate and bottom plate, consequently facilitating passing through with 30 phase of fuel tank It is logical, it is also convenient for being fixedly connected with shell 20.Specifically, the outer peripheral surface gap setting of the inner peripheral surface of valve body 10 and spool 11, is convenient for Spool 11 floats along the vertical direction.Specifically, the shape of oil inlet 103 can be slotted hole, rectangular opening or circular hole.

As one embodiment, as shown in connection with fig. 4, exhaust apparatus further includes baffle 22.Shell 20 is arranged in baffle 22 In cavity, and the siding of surrounding and shell 20 is tightly connected.In the vertical direction, the cavity of shell 20 is divided into phase by baffle 22 Mutual independent upper cavity 202 and lower chamber 203.Upper cavity 202 is connected by connector 21 with pipeline 40.Lower chamber 203 and valve The cavity of body 10 is connected by through-hole 201.Baffle 22 is equipped with gas vent 221, and upper cavity 202 and lower chamber 203 pass through Gas vent 221 connects.

When vehicle shakes in the process of moving, fuel oil may be splashed into shell 20 along through-hole 201, be set in the present embodiment Baffle 22 is set, barrier effect can be played to the fuel liquid of splashing, fuel oil is avoided to flow into canister along pipeline 40 from shell 20 In 50.

In addition, fuel oil can be isolated in lower chamber 203 by baffle 22 when the amount of fuel leaked in shell 20 is more In, avoid fuel oil from being directly entered upper cavity 202, to along 21 feed line 40 of connector, meanwhile, the fuel oil in lower chamber 203 Can be back in fuel tank 30 along through-hole 201, both be avoided that the fuel oil of leakage flows into canister 50 along pipeline 40, can also will under The fuel oil accumulated in cavity 203 utilizes again, saves fuel.

Valve body 10 connects with fuel tank 30, and therefore, the fuel-steam in fuel tank 30 enters lower chamber along through-hole 201 203；Gas in lower chamber 203 enters upper cavity 202 along gas vent 221；Gas in upper cavity 202 is entered by connector 21 In pipeline 40；Gas in pipeline 40 flows into canister 50 and is handled.Therefore, the gas in fuel tank 30 can flow, thus Keep the pressure balance in fuel tank 30.

In addition, being accumulated in upper cavity 202 when the amount of fuel leaked in shell 20 is more and enters upper cavity 202 Fuel oil can also be back in lower chamber 203 along gas vent 221.

In the present embodiment, referring to figure 1 and figure 5, the quantity of baffle 22 is multiple.In the vertical direction, each baffle 22 are arranged side by side.Gas vent 221 is equipped on each baffle 22, and the gas vent 221 on each baffle 22 is in horizontal plane Orthographic projection it is parallel.

Multiple baffles 22 are set, the barrier effect to leakage fuel oil can be enhanced.Each gas vent 221 is staggered, The barrier effect to fuel oil can be enhanced, the fuel oil to splash is avoided to be directly entered connector 21, meanwhile, when the amount of fuel of leakage is more When, the gas vent 221 being staggered can be avoided fuel oil and directly stretch to connector 21.

As shown in connection with fig. 5, the quantity of baffle 22 is two；Two baffles 22 respectively first baffle and second baffle, and First baffle is equipped with first row stomata, and second baffle is equipped with second row stomata；In the vertical direction, second baffle is located at the The top of one baffle；In the vertical direction, the cavity of shell 20 is divided into mutually independent by first baffle and second baffle One cavity, the second cavity and third cavity；The cavity of first cavity and valve body 10 is connected by through-hole 201；Second cavity with First cavity is connected by first row stomata；Third cavity is connected with the second cavity by second row stomata, and third chamber Body is connected by connector 21 with pipeline 40.

First row stomata and second row stomata can make gas circulate, to keep the pressure balance in fuel tank 30.? On vertical direction, the second cavity is located at the top of the first cavity, and third cavity is located at the top of the second cavity, when fuel tank 30 When shaking, the fuel oil in valve body 10 leaks in the first cavity along through-hole 201, and first baffle plays blocking to fuel oil at this time Effect, avoids fuel oil from being directly entered the second cavity；Meanwhile first the fuel oil accumulated in cavity can be back to combustion along through-hole 201 In fuel tank 30.

When the amount of fuel of leakage is larger and stretches along first row stomata to the second cavity, second baffle is in the second cavity Fuel oil play barrier effect, avoid fuel oil be directly entered third cavity and enter connector 21 in；Meanwhile second accumulates in cavity Fuel oil the first cavity can be back to along first row stomata, then be back to fuel tank 30 along through-hole 201.

First row stomata is staggered with through-hole 201, can be avoided the fuel oil splashed out in valve body 10 and directly passes through through-hole 201 With first row stomata in the second cavity of entrance.First row stomata and second row stomata are staggered, and can be avoided the first cavity The fuel oil of interior splashing is directly entered in third cavity by first row stomata and second row stomata.

When the quantity more than two of baffle 22, working principle is consistent with above-mentioned principle.

In the present embodiment, as shown in connection with fig. 4, the orthographic projection of baffle 22 in perpendicular is V-shaped, and gas vent 221 In the recess of baffle 22.

Baffle 22 is set as V-type, convenient for the fuel flow returns of 22 top of baffle；Meanwhile compared to plate, the baffle 22 of V-type Face area increase, when fuel oil splashes to shell 20, baffle 22 enhances the barrier effect of fuel oil.Gas vent 221 is located at The recess of baffle 22 is back in lower chamber 203 convenient for fuel oil by gas vent 221.

As one embodiment, in conjunction with shown in Fig. 1 and Fig. 4, exhaust apparatus further includes obstructing tube 23.The setting of obstructing tube 23 exists In the cavity of shell 20, and connected by connector 21 with pipeline 40.

Obstructing tube 23 extends into the cavity of shell 20, and tube wall plays barrier effect to the fuel oil in shell 20, avoids Fuel oil in shell 20 is directly entered in connector 21.Specifically, obstructing tube 23 is the semi-circular tube of opening upwards.

As one embodiment, as shown in connection with fig. 6, shell 20 is separate structure, and including housing 204 and cover board 205.Cover The bottom plate of shell 204 is connected with valve body 10, and the bottom plate of housing 204 is equipped with through-hole 201, and the top of housing 204 is equipped with connector 21.Cover board 205 and housing 204 are tightly connected, and housing 204 is made to form the cavity sealed.

In the present embodiment, since the internal structure of shell 20 is complicated, pass through plastics sucking moulding or the difficulty of processing of blow molding Greatly, therefore, the processing method of injection molding is used in the present embodiment, and shell 20 can not be processed into sealing knot by injection molding Therefore structure sets separate structure for shell 20 in the present embodiment.Housing 204 after injection molding forms, then with cover board 205 It is welded.

Specifically, housing 204 and cover board 205 are polyformaldehyde (polyformaldehyde, english abbreviation POM) material. Specifically, housing 204 and valve body 10 use ultrasonic bonding.

As one embodiment, in conjunction with shown in Fig. 3, Fig. 6 and Fig. 7, the outer peripheral surface of valve body 10 is equipped with ring flange 104, and Ring flange 104 is welded with 30 phase of fuel tank.By ring flange 104, valve body 10 and fuel tank 30 are connected as overall structure.

In the present embodiment, valve body 10 is polyformaldehyde (polyformaldehyde, english abbreviation POM) material, and fuel tank 30 be high density polyethylene (HDPE) (english abbreviation HDPE) material.In the present embodiment, ring flange 104 uses the processing side of quadric injection mould Formula, and polyformaldehyde (polyformaldehyde, english abbreviation POM) material is used in primary injection molding, when quadric injection mould, use High density polyethylene (HDPE) (english abbreviation HDPE) material.Specifically, ring flange 104 and fuel tank 30 use sweat soldering.This implementation In example, ring flange 104 also be can be set on the bottom plate of shell 20.

The utility model embodiment additionally provides fuel tank, and in conjunction with shown in Fig. 1 and Fig. 7, fuel tank 30 includes above-mentioned row Device of air.The siding of fuel tank 30 and the siding of valve body 10 mutually weld, and welding surface is high-density polyethylene material.

Fuel tank 30 is high density polyethylene (HDPE) (english abbreviation HDPE) material, and the welding surface of valve body 10 and fuel tank 30 For high density polyethylene (HDPE) (english abbreviation HDPE) material, sweat soldering is carried out convenient for fuel tank 30 and valve body 10, so that junction It is stronger.

The utility model embodiment additionally provides automobile, including above-mentioned fuel tank 30.

Claims

1. exhaust apparatus characterized by comprising

Valve body, for being arranged in the cavity of fuel tank, and siding is connected with the siding of fuel tank；The cavity of the valve body and combustion The cavity of fuel tank connects；With

Shell is located at the top of the valve body in the vertical direction；The bottom plate of the shell is connected with the siding of the valve body, and The bottom plate of the shell is equipped with through-hole；The cavity of the shell and the cavity of the valve body are connected by the through-hole；Institute The top for stating shell is equipped with for the connector with piping connection.

2. exhaust apparatus according to claim 1, which is characterized in that further include:

Spool is arranged in the cavity of the valve body, and is slidably connected with the siding of the valve body；The spool is buoyancy material Material, and touch and for being abutted when the liquid level of fuel tank rises to setting height with the base top of the shell for blocking institute State through-hole.

3. exhaust apparatus according to claim 2, it is characterised in that: the siding of the valve body is equipped with slideway；The valve Core is equipped with the sliding block for being slidably matched with the slideway；

4. exhaust apparatus according to claim 1, it is characterised in that: the valve body is in tubbiness, and bottom is equipped with opening；Institute The siding for stating valve body is equipped with oil inlet, and the cavity of the cavity of the valve body and fuel tank passes through the opening and the oil inlet Mouth connects.

5. exhaust apparatus according to claim 1, which is characterized in that further include:

Baffle is arranged in the cavity of the shell, and the siding of surrounding and the shell is tightly connected；In the vertical direction, The cavity of the shell is divided into mutually independent upper cavity and lower chamber by the baffle；The upper cavity passes through the connector It connects with pipeline；The cavity of the lower chamber and the valve body is connected by the through-hole；The baffle is equipped with exhaust Hole, and the upper cavity and the lower chamber are connected by the gas vent.

6. exhaust apparatus according to claim 5, it is characterised in that: the quantity of the baffle is multiple；In vertical direction On, each baffle is arranged side by side；

Gas vent is equipped on each baffle, and orthographic projection of the gas vent on each baffle in horizontal plane is parallel.

7. exhaust apparatus according to claim 5, it is characterised in that: the orthographic projection of the baffle in perpendicular is in V Type, and the gas vent is located at the recess of the baffle.

8. exhaust apparatus according to claim 1, which is characterized in that further include:

9. fuel tank, it is characterised in that: including exhaust apparatus as claimed in any one of claims 1 to 8；The wall of the fuel tank The siding of plate and the valve body mutually welds, and welding surface is high-density polyethylene material.

10. automobile, it is characterised in that: including fuel tank as claimed in claim 9.