CN203548031U - Novel fuel pump opening sealing component - Google Patents
Novel fuel pump opening sealing component Download PDFInfo
- Publication number
- CN203548031U CN203548031U CN201320622950.9U CN201320622950U CN203548031U CN 203548031 U CN203548031 U CN 203548031U CN 201320622950 U CN201320622950 U CN 201320622950U CN 203548031 U CN203548031 U CN 203548031U
- Authority
- CN
- China
- Prior art keywords
- layer
- double
- fuel pump
- sealing
- component
- 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.)
- Expired - Lifetime
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 32
- 239000000446 fuel Substances 0.000 title claims abstract description 21
- 238000001746 injection moulding Methods 0.000 claims abstract description 20
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 18
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 18
- 229920006324 polyoxymethylene Polymers 0.000 claims abstract description 17
- 239000002828 fuel tank Substances 0.000 claims abstract description 15
- 229930040373 Paraformaldehyde Natural products 0.000 claims description 10
- -1 polyoxymethylene Polymers 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000006835 compression Effects 0.000 abstract description 3
- 238000007906 compression Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 6
- 238000000071 blow moulding Methods 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010761 intermediate fuel oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Landscapes
- Closures For Containers (AREA)
Abstract
The utility model relates to a novel fuel pump opening sealing component which is characterized by comprising a fuel pump flange, a locking nut and a fuel pump opening thread component, wherein a sealing ring is arranged between the fuel pump flange and the fuel pump opening thread component of a fuel tank; the thread component is a double-layer double-color injection-molding thread component; the outer layer of the double-layer double-color injection-molding thread component is a polyformaldehyde layer, and the inner layer of the double-layer double-color injection-molding thread component is a high-density polyethylene layer. The novel fuel pump opening sealing component has the advantages that (1) according to the technical scheme, the novel fuel pump opening sealing component is simple in overall structure, lower in cost and convenient to mount and operate; (2) by the adoption of the double-layer double-color injection-molding thread component, the sealing surface manufacturing precision is improved, and sealing can be realized favorably; (3) the outer layer of the double-layer double-color injection-molding thread component is the polyformaldehyde layer, and the inner layer of the double-layer double-color injection-molding thread component is the high-density polyethylene layer, so that the thread manufacturing precision is improved, and the assembling firmness can be guaranteed favorably; (4) the novel fuel pump opening sealing component is more environment-friendly, and emission is reduced; furthermore, due to the stable assembling, the sealing ring can be compressed to a proper compression amount, so that the discharging property of a sealing structure is improved.
Description
Technical field
The utility model relates to a kind of sealed member, and especially a kind of novel fuel pumping hole sealed member, belongs to fuel tank manufacturing technology field.
Background technique
The sealability of fuel tank is one of important indicator of fuel tank performance, and the quality of sealability not only affects environment and affects to a certain extent the Security of car; Fuel tank is comprised of hollow blow molding casing and other accessories, and fuel pump is connected with fuel tank body by assembly structure, is the critical component of realizing fuel oil transmission and oil-level measurement.After casing perforate assembling oil pump, by sealing fixed structure, fuel pump and fuel tank are fixed and sealed, the sealing after assembling oil pump directly affects car load safety.And, being accompanied by increasingly strict vehicular discharge rules, the emission request of fuel tank system is also more and more harsher, and the discharge of fuel oil pumping hole has occupied whole fuel tank and has discharged a sizable part.The problem that prior art intermediate fuel oil case sensor assembly structure exists is as follows: 1) excessive manufacturing tolerances is unfavorable for the control of sealing, the blow-moulded tank of HDPE material, need larger manufacturing tolerances, but, the excessive tolerance of sealing surface and screw thread can cause the variation that angle of assembling is larger, is unfavorable for the stability of assembling and the reliability of control.And blow molding process and follow-up cooling procedure, inevitably cause the distortion of sealing surface and the contraction of screw thread, be unfavorable for sealing.Because casing screw thread and sealing surface are the HDPE of blow moulding and forming, rigidity is not too strong, in higher temperatures or lower temperature situation, is subject to axial pressure, and sealing surface can produce certain deformation, causes seal ring compression situation inconsistent, affects sealing effect; 2) emission performance is not enough, and the deficiency of above-mentioned manufacture and Assembly stability can affect emission performance, discharges more pollutant in environment.Therefore, a kind of new technological scheme of exigence solves above-mentioned technical problem.
Model utility content
The utility model is just for the technical problem existing in prior art, a kind of simple in structure, easy to operate novel fuel pumping hole sealed member is provided, this technological scheme is not when increasing manufacture difficulty, increase stability and the reliability of sealing fitted position, thereby improve sealability and the emission performance of fuel level sensor assembling, and cost reduces greatly, be convenient to apply on a large scale.
To achieve these goals, the technical solution of the utility model is as follows, a kind of novel fuel pumping hole sealed member, it is characterized in that, described sealed member comprises Oil pump flange, locking nut, oil pump mouth threaded part, between described Oil pump flange and fuel tank oil pump mouth threaded part, be provided with seal ring, described threaded part is set to double-layer bi-color injection moulding threaded part.Sealing parts overall structure is simple, cost is lower, easy to operate, and double-layer bi-color injection moulding threaded part can guarantee high-precision size and higher intensity, and seal ring, locking nut, Oil pump flange form sealing, increased stability and the reliability of sealed member.
As a kind of improvement of the present utility model, the skin of double-layer bi-color injection moulding threaded part is polyoxymethylene layer, and internal layer is high-density polyethylene layer.Threaded part is outside for polyoxymethylene is called for short POM, inner for high density polyethylene (HDPE) is called for short HDPE. in blowing process, inner HDPE layer and fuel tank body bonding.The screw thread POM part of molding and forming can guarantee high-precision size and higher intensity, and seal ring, locking nut, Oil pump flange form sealing.
As a kind of improvement of the present utility model, the thickness of described double-layer bi-color injection moulding threaded part is 3.5mm-6mm.
As a kind of improvement of the present utility model, described locking nut adopts polyoxymethylene layer, guarantees the sealing with oil pump mouth threaded part.
Advantage of the present utility model is as follows, and 1) this technological scheme overall structure is simple, cost is lower, fitting operation is convenient; 2) this technological scheme adopts double-layer bi-color injection moulding threaded part, and sealing surface accuracy of manufacturing improves, and is beneficial to sealing; 3) skin of double-layer bi-color injection moulding threaded part is polyoxymethylene layer, internal layer is high-density polyethylene layer, and screw-tjread system manufacturing accuracy improves, and is beneficial to assembling soundness, in the HDPE plastic whorl precision of blowing, lower than the POM screw thread of injection moulding, after assembling, moment of torsion there will be obvious decay.New screw thread not only precision improves, and intensity also significantly strengthens, and coordinates tightr.The rear moment of torsion decay of assembling is less, increases soundness and the reliability of assembling; 4) this technological scheme guarantees that homogeneity of product improves, and more accurate accuracy of manufacturing is convenient to coordinate, and can significantly improve the stability of product; 5) this technological scheme environmental protection more, reduces discharge, and stable assembling can keep seal ring to be compressed to suitable decrement, thereby improves the discharge of sealing configuration.
figure explanation
Fig. 1 the utility model overall structure schematic diagram;
In figure: 1 is Oil pump flange, 2 is locking nut, and 3 is seal ring, and 4 is oil pump mouth threaded part, and 5 is fuel tank, and 41 is high-density polyethylene layer, and 42 is polyoxymethylene layer.
Embodiment
In order to deepen, to understanding and cognition of the present utility model, below in conjunction with the drawings and specific embodiments, the utility model to be made further instructions and introduced.
embodiment 1:
Referring to Fig. 1, a kind of novel fuel pumping hole sealed member, described sealed member comprises Oil pump flange 1, locking nut 2, oil pump mouth threaded part 4, is provided with seal ring 3 between described Oil pump flange 1 and fuel tank oil pump mouth threaded part 4, and described threaded part is set to double-layer bi-color injection moulding threaded part.Sealing parts overall structure is simple, cost is lower, easy to operate, and double-layer bi-color injection moulding threaded part can guarantee high-precision size and higher intensity, and seal ring, locking nut, Oil pump flange form sealing, increased stability and the reliability of sealed member.All the other structures are identical with embodiment 1 with advantage.
embodiment, 2:
Referring to Fig. 1, as a kind of improvement of the present utility model, the skin of double-layer bi-color injection moulding threaded part is polyoxymethylene layer 42, and internal layer is high-density polyethylene layer 41.Threaded part is outside for polyoxymethylene is called for short POM, inner for high density polyethylene (HDPE) is called for short HDPE. in blowing process, inner HDPE layer and fuel tank body bonding.The screw thread POM part of molding and forming can guarantee high-precision size and higher intensity, and seal ring, locking nut, Oil pump flange form sealing.All the other structures are identical with embodiment 1 with advantage.
embodiment 3:
Referring to Fig. 1, as a kind of improvement of the present utility model, the thickness of described double-layer bi-color injection moulding threaded part is generally 3.5mm-6mm.In assembly process in compresses seal, threaded part counterface and the screw thread power that is all squeezed, the deformation that now should as far as possible threaded part be produced is reduced to minimum, that is to say and requires it to possess good rigidity, to keep the stability of seal ring compression and the stability of assembling; Consider stability and the cost of parts of manufacture process simultaneously.
embodiment 4:
Referring to Fig. 1, as a kind of improvement of the present utility model, described locking nut adopts polyoxymethylene layer, guarantees the sealing with oil pump mouth threaded part.All the other structures are identical with embodiment 1 with advantage.
The utility model can also be combined to form new mode of execution by least one and embodiment 1 in technical characteristics described in embodiment 2,3,4.
It should be noted that above-described embodiment is only preferred embodiment of the present utility model; be not used for limiting protection domain of the present utility model; being equal to replacement or substituting of having done on the basis of the above all belongs to protection domain of the present utility model, and protection domain of the present utility model is as the criterion with claims.
Claims (4)
1. a novel fuel pumping hole sealed member, is characterized in that, described sealed member comprises Oil pump flange, locking nut, oil pump mouth threaded part, is provided with seal ring between described Oil pump flange and fuel tank oil pump mouth threaded part, and described threaded part is set to double-layer bi-color injection moulding threaded part.
2. a kind of novel fuel pumping hole sealed member according to claim 1, is characterized in that, the skin of double-layer bi-color injection moulding threaded part is polyoxymethylene layer, and internal layer is high-density polyethylene layer.
3. a kind of novel fuel pumping hole sealed member according to claim 2, is characterized in that, the thickness of described double-layer bi-color injection moulding threaded part is generally 3.5mm-6mm.
4. according to a kind of novel fuel pumping hole sealed member described in claim 1-3 any one claim, it is characterized in that, described locking nut adopts polyoxymethylene layer, guarantees the sealing with oil pump mouth threaded part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320622950.9U CN203548031U (en) | 2013-10-10 | 2013-10-10 | Novel fuel pump opening sealing component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320622950.9U CN203548031U (en) | 2013-10-10 | 2013-10-10 | Novel fuel pump opening sealing component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203548031U true CN203548031U (en) | 2014-04-16 |
Family
ID=50466158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320622950.9U Expired - Lifetime CN203548031U (en) | 2013-10-10 | 2013-10-10 | Novel fuel pump opening sealing component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203548031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10738745B2 (en) | 2018-07-12 | 2020-08-11 | Honda Motor Co., Ltd. | Vehicle fuel pump cover assembly and method |
-
2013
- 2013-10-10 CN CN201320622950.9U patent/CN203548031U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10738745B2 (en) | 2018-07-12 | 2020-08-11 | Honda Motor Co., Ltd. | Vehicle fuel pump cover assembly and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203548031U (en) | Novel fuel pump opening sealing component | |
| CN202851119U (en) | Automobile urea tank | |
| CN109454903A (en) | The HP-RTM molding die of middle channel stiffening plate | |
| CN102213169B (en) | High pressure common rail device with variable high pressure volume for high pressure common rail fuel system | |
| CN116379334A (en) | Sealing structure of valve seat of plastic liner and forming process thereof | |
| CN207916561U (en) | The valve body of automotive oil tank | |
| CN206465387U (en) | High-precision silica gel diaphragm mould flash eliminates structure | |
| CN104986033A (en) | Fuel tank molding rigidity assembly and fuel tank molding method | |
| CN214159664U (en) | Pipette suction head | |
| CN209226541U (en) | One kind, which is jumped a queue, covers component and adding device | |
| CN205138577U (en) | Environment -friendly plastic water gauge | |
| CN203035612U (en) | Gas compressor volute with air cock and air cork installation mould | |
| CN208997196U (en) | A kind of bearing seal coil structures | |
| CN203031894U (en) | Injection oil path with servo motor for injection molding machine | |
| CN202937394U (en) | Novel fuel spray nozzle needle valve coupler of internal combustion engine | |
| CN207808313U (en) | A kind of detent mechanism of mobile phone shell secondary injection mould | |
| CN208352465U (en) | Lead-acid accumulator bottom case reinforced structure | |
| CN203818506U (en) | Dynamic pressure-maintaining injection molding device for high polymer materials | |
| CN221300481U (en) | Evaporator pipeline assembly | |
| CN208686578U (en) | Screw pump stator with equal wall thickness | |
| CN209309090U (en) | A kind of automobile-used hex(agonal)screw mutual connection shock absorber part | |
| CN220551785U (en) | Gas cylinder with sealing structure | |
| CN217108339U (en) | Electromagnet structure and oil tank isolating valve thereof | |
| CN215860535U (en) | Plastic oil sump sealing ring structure | |
| CN218948934U (en) | Single-tank multi-cavity plastic oil tank and urea tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
|
| CX01 | Expiry of patent term |