CN104786831A - Automobile plastic fuel tank - Google Patents
Automobile plastic fuel tank Download PDFInfo
- Publication number
- CN104786831A CN104786831A CN201510160048.3A CN201510160048A CN104786831A CN 104786831 A CN104786831 A CN 104786831A CN 201510160048 A CN201510160048 A CN 201510160048A CN 104786831 A CN104786831 A CN 104786831A
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- China
- Prior art keywords
- fuel tank
- spacer structure
- box
- plastic fuel
- tank
- 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.)
- Pending
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention relates to an automobile plastic fuel tank which is formed by connecting an upper tank body with a lower tank body. The automobile plastic fuel tank is characterized in that upper discontinuous compartment structures are arranged in the middle of the upper tank body in the length direction, and lower discontinuous compartment structures are arranged in the middle of the lower tank body in the length direction; the upper compartment structures are correspondingly in adhesive connection with the lower compartment structures in a staggered mode in order to improve the strength and stiffness of the fuel tank; lower gaps are formed between the lower ends of the upper compartment structures and the tank wall of the lower tank body, and upper gaps are formed between the upper ends of the lower compartment structures and the tank wall of the upper tank body. The automobile plastic fuel tank is good in pressure resistance, strong in deformation resistance, capable of being normally used on the condition that higher pressure is borne, and capable of restraining the generation of gasoline vapor.
Description
Technical field
The invention belongs to automobile component, be specifically related to a kind of automobile plastic fuel tank.
Background technology
Plastic Fuel Box for Automobile generally can specify fuel tank upper and lower surface maximum distortion scope in ageing test.Ageing test General provisions fuel tank is at specific fuel filling amount, after keeping a few week under specified temp (40 DEG C), measure fuel tank deflection, object is to protect positive car load fuel tank ground Clearance when normally using, and significant change can not occur with peripheral component gap.Existing plastic fuel tank is generally fixed on vehicle body by metal ligatures, and arrange because of vehicle body and limit attachment point quantity, when fuel tank is larger, meet the specification of fuel tank upper and lower surface maximum distortion scope, be inconvenient.
The speed that fuel-steam produces and fuel tank internal gas pressure are inversely proportional to, and increase fuel tank internal gas pressure, can limit fuel-steam and be loaded into charcoal tank.But the plastic fuel tank used at present can produce remarkable distortion under larger pressure, therefore, when increasing fuel tank internal pressure, fuel tank how is prevented to be out of shape just extremely important.The main top nowel of intensity of existing plastic fuel tank self is mutual at parting line place bondingly to be ensured.When plastic fuel tank is larger, because bond area is little, fuel tank face area is not easy greatly the intensity ensureing plastic fuel tank self.
CN 101269624 discloses a kind of plastic fuel tank, comprises casing, and described box house is divided into mutually exclusive first fuel chambers and the second fuel chambers by dividing plate.Adopting mutually exclusive pair of inner-cavity structure by adopting in a plastic fuel tank, serving the effect of two plastic fuel tanks, saved the material of plastic fuel tank, decrease assembly process, improve production efficiency, another one plastic fuel tank, be also convenient to installation and the layout of car load.This plastic fuel tank is divided into two fuel chambers in the width direction by a dividing plate, and is provided with two oil filling ports, two exhausr ports and two sensor port, although, the strength and stiffness of fuel tank can be improved to a certain extent, Reducing distortion, but, structure is comparatively complicated, and productive costs is higher.Therefore, need to look for another way, explore new technical scheme.
Summary of the invention
The object of this invention is to provide a kind of automobile plastic fuel tank, its resistance to pressure is good, and non-deformability is strong, under the larger pressure of carrying, still normally can use, and can suppress the generation of gasoline vapor.
A kind of automobile plastic fuel tank of the present invention, comprise and being connected and composed by upper box and lower box, it is characterized in that: the upper spacer structure being provided with interruption in the middle part of described upper box along its length, in the middle part of described lower box, be provided with the lower spacer structure of interruption along its length; Described upper spacer structure is staggered corresponding bonding with lower spacer structure, to improve the strength and stiffness of fuel tank; And be provided with lower gap between the bottom of spacer structure and the tank wall of lower box on described, between the upper end and the tank wall of upper box of described lower spacer structure, be provided with gap.
Further, described upper spacer structure is the inverted ladder-shaped body of multiple interruption, and is injected into one with described upper box; Described lower spacer structure is the trapezoid body of multiple interruption, and is injected into one with described lower box.
Because the upper spacer structure of upper box and the staggered correspondence of the lower spacer structure of lower box contact, fuel tank is divided into former and later two oil pockets, these two oil pockets are not separated completely, so under any fuel head, fuel oil and fuel-steam by upper gap and lower Clearance Flow, thus can ensure that the oil level height of former and later two oil pockets, air pressure are all completely the same.
The present invention adopts mould blow molding usually.Have production efficiency high, conformability is good, has good economy.Owing to being provided with the upper spacer structure of interruption in the middle part of upper box along its length, the lower spacer structure of interruption is provided with along its length in the middle part of lower box, upper spacer structure is staggered corresponding bonding with lower spacer structure, thus improve resistance to pressure, the strength and stiffness of fuel tank, enhance the ability of resistance to deformation, being carried under larger pressure, still can normally use.
Accompanying drawing explanation
Fig. 1 is upper box structure schematic diagram of the present invention;
Fig. 2 is lower box structural representation of the present invention;
Fig. 3 is overall schematic of the present invention;
Fig. 4 is the A-A cutaway view of Fig. 3.
In figure: 1-upper box, 2-lower box, the upper spacer structure of 11-, the upper gap of 12-, spacer structure under 21-, gap under 22-.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
See a kind of automobile plastic fuel tank shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, comprise and being connected and composed by upper box 1 and lower box 2, its outstanding substantive distinguishing features is: the upper spacer structure 11 being provided with interruption in the middle part of described upper box 1 along its length, is provided with the lower spacer structure 21 of interruption along its length in the middle part of described lower box 2; Described upper spacer structure is staggered corresponding bonding with lower spacer structure, to improve the strength and stiffness of fuel tank; And be provided with lower gap 22 between the bottom of spacer structure 11 and the tank wall of lower box 2 on described, between the upper end and the tank wall of upper box 1 of described lower spacer structure 21, be provided with gap 12.Fuel tank does not separate for former and later two oil pockets by described upper spacer structure and lower spacer structure completely, upper gap and lower gap form fuel oil and fuel-steam circulation passage, fuel oil and fuel-steam can pass through smoothly, make fuel tank no matter all can ensure that the air pressure in fuel tank is consistent during for which kind of electrolyte level, fuel head is consistent.
Further, described upper spacer structure 11 is the inverted ladder-shaped body of multiple interruption, and is injected into one with described upper box 1; Described lower spacer structure 21 is the trapezoid body of multiple interruption, and is injected into one with described lower box 2.
Larger pulling force can be born in described upper spacer structure and the lower spacer structure corresponding bonding position that interlocks, and its bearing capacity is directly proportional to bond area.It is typical upper and lower spacer structure shown in Fig. 1 and Fig. 2.The shape of upper and lower spacer structure can be adjusted according to requirements such as plastic fuel tank structure, intensity.
Claims (2)
1. an automobile plastic fuel tank, comprise and being connected and composed by upper box (1) and lower box (2), it is characterized in that: the upper spacer structure (11) being provided with interruption in the middle part of described upper box (1) along its length, in the middle part of described lower box (2), be provided with the lower spacer structure (21) of interruption along its length; Described upper spacer structure and lower spacer structure are staggered corresponding bonding, and are provided with lower gap (22) between the bottom of spacer structure (11) and the tank wall of lower box (2) on described, between the upper end and the tank wall of upper box (1) of described lower spacer structure (21), are provided with upper gap (12).
2. a kind of automobile plastic fuel tank according to claim 1, is characterized in that: the inverted ladder-shaped body that described upper spacer structure (11) is multiple interruption, and is injected into one with described upper box (1); The trapezoid body that described lower spacer structure (21) is multiple interruption, and be injected into one with described lower box (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510160048.3A CN104786831A (en) | 2015-04-07 | 2015-04-07 | Automobile plastic fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510160048.3A CN104786831A (en) | 2015-04-07 | 2015-04-07 | Automobile plastic fuel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104786831A true CN104786831A (en) | 2015-07-22 |
Family
ID=53552175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510160048.3A Pending CN104786831A (en) | 2015-04-07 | 2015-04-07 | Automobile plastic fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104786831A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2398129Y (en) * | 1999-10-12 | 2000-09-27 | 南宁八菱工程塑料制品有限公司 | Large capacity plastic fuel tank |
| JP2006232132A (en) * | 2005-02-25 | 2006-09-07 | Toyota Motor Corp | Fuel tank structure |
| CN1833903A (en) * | 2005-03-16 | 2006-09-20 | 丰田自动车株式会社 | Fuel tank structure |
| CN102341260A (en) * | 2009-03-19 | 2012-02-01 | 考特克斯·特克斯罗恩有限公司及两合公司 | Plastic fuel tank |
| CN102666175A (en) * | 2009-11-06 | 2012-09-12 | 因勒纪汽车系统研究公司 | Plastic fuel tank with increased deformation stability |
-
2015
- 2015-04-07 CN CN201510160048.3A patent/CN104786831A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2398129Y (en) * | 1999-10-12 | 2000-09-27 | 南宁八菱工程塑料制品有限公司 | Large capacity plastic fuel tank |
| JP2006232132A (en) * | 2005-02-25 | 2006-09-07 | Toyota Motor Corp | Fuel tank structure |
| CN1833903A (en) * | 2005-03-16 | 2006-09-20 | 丰田自动车株式会社 | Fuel tank structure |
| CN102341260A (en) * | 2009-03-19 | 2012-02-01 | 考特克斯·特克斯罗恩有限公司及两合公司 | Plastic fuel tank |
| CN102666175A (en) * | 2009-11-06 | 2012-09-12 | 因勒纪汽车系统研究公司 | Plastic fuel tank with increased deformation stability |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150722 |
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| RJ01 | Rejection of invention patent application after publication |