CN205424160U - Multilayer fuel rubber tube - Google Patents
Multilayer fuel rubber tube Download PDFInfo
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- CN205424160U CN205424160U CN201521071917.7U CN201521071917U CN205424160U CN 205424160 U CN205424160 U CN 205424160U CN 201521071917 U CN201521071917 U CN 201521071917U CN 205424160 U CN205424160 U CN 205424160U
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Abstract
The utility model provides a multilayer fuel rubber tube, multilayer fuel rubber tube to high density polyethylene appears a layer material for low, can avoid oligomer appearing in the fuel rubber tube, simultaneously to ethylene tetrafluoroethene copolymer or ethylene the ethonal copolymer can utilize the barrier properties that above -mentioned polymeric material is excellent as the barrier layer material, realizes that multilayer fuel rubber tube permeates oil -fired effective separation. Furthermore, use nylon 11 as external coating among the multilayer fuel rubber tube, can improve multilayer fuel rubber tube's sealing performance, chemical tolerance and machining performance.
Description
Technical field
The utility model relates to rubber tube of automobile fuel oil field, in particular to a kind of multilayer
Fuel hose.
Background technology
Rubber tube of automobile fuel oil includes fuel oil petroleum pipeline and the fuel pipe to engine supply fuel,
It is important safety member, thus, the highest to the performance requirement of fuel hose material.
It is said that in general, rubber tube of automobile fuel oil hose lining fuel-resistant to be selected medium and heat-resist material
Material；Outer layer glue then to select ozone heat-resisting, resistance to, resistance to ambient influnence and the adhesion with hose lining
The material that performance is good.What orthodox car fuel hose was typically used is also hose lining/centre
The compound rubber pipe of layer/outer layer glue 3-tier architecture.The internal layer of conventional fuel oil sebific duct is NBR (fourth
Nitrile rubber), intermediate layer be wound around or braided fiber as skeleton, outer layer as CR (neoprene rubber
Glue), in order to improve the ageing-resistant performance of sebific duct, it is possible to use CSM (the poly-second of chlorosulfonation
Alkene rubber) as outer layer glue.
Safe, energy-conservation and environmental protection is the eternal theme of automotive technology development.Use Electronic Control
Fuel injection system engine is one of important measures reducing discharge.Automobile uses EFI to send out
After motivation, fuel system pressure improves about 10 times than common engine, and EFI starts
The use of machine not only makes the temperature of engine itself raise, and makes the environment temperature of surrounding also
Raise；In addition the fuel component used also added the compound conduct with oxidisability
Additive.Therefore, fuel system general all in high temperature, acidifying (sour gasoline)
With the environment of high-pressure trend, and this makes people the harshest to the life requirement of sebific duct, by
This there has also been high pressure resistant, the requirement of low-penetration fuel hose of exploitation.Further, owing to sending out
Motivation develops to direction high-power, high-revolving, and this result also in sebific duct operating ambient temperature
Acute variation, and then promote the material of rubber tube of automobile fuel oil and processing method to send out constantly
Card and renewal.
Automobile exhaust contaminant mainly has HC, NOx, CO, PM (particulate) etc., discharge
Generally include exhaust emissions and evaporating-osmosis discharge.Pollutant mainly passes through automobile exhaust pipe
Discharge, but nearly have 45% HC and other pollutants minimal amount of by crankcase and fuel oil
System discharge, fuel system include fuel tank, fuel hose, fuel filter, fuel pump,
Carburetor or gasoline injecting-unit composition system and fuel evaporation pollutant control system, bag
Include all open to atmosphere openings in 2 systems.This is accomplished by reducing fuel oil from fuel hose
The evaporation of fuel oil is oozed out, thus reaches safe, the energy-conservation and purpose of environmental protection.
In order to research and develop the fuel hose with low precipitation performance, prior art is made that many
Secondary effort and trial.
Such as, prior art (CN202152884U, publication date: on February 29th, 2012)
Disclosing a kind of low-seepage double-layered composite oil transportation hose, described oil hose has by nylon 12
The outer layer made and the inner tube being made up of nylon 9 T.
The most such as, prior art (CN204025966U, publication date: December 17 in 2014
Day) in also disclose that a kind of high-barrier rubber tube of automobile fuel oil, it includes that ethylene-tetrafluoroethylene is altogether
Barrier layer and nylon 12 outer barrier in the middle part of polymers inner barrier layer, polyamide 9T
Layer, ethylene-tetrafluoroethylene copolymer inner barrier layer outer surface is provided with in the middle part of polyamide 9T
Barrier layer, in the middle part of polyamide 9T, the outer surface of barrier layer is provided with outside nylon 12
Barrier layer.
Meanwhile, prior art (CN203686398U, publication date: on July 2nd, 2014)
In also disclose a kind of multilayer fuel delivery line, its pipeline by internal layer to layer structure
For: protective layer, barrier layer and low precipitation layer.Wherein, protective layer, barrier layer and resistance
It is respectively arranged with an adhesive linkage between interlayer and low precipitation layer.Further, low precipitation layer by
Nylon 9 T makes, for the fuel contacts directly and in fuel delivery line.
Although low precipitation, hypotonicity combustion glue oil pipe have been had more by prior art
Research, but, owing to the internal layer of existing fuel hose pipeline mostly is nylon material, and
After this nylon material and fuel contacts, still have oligomer and separate out, if vehicle is long-term
Park, can not be able to be again started up because atomizer blocks.Meanwhile, directly with ethene-tetrafluoro
Ethene is the oil resistivity of the fuel hose of internal layer bad, and it is the most undesirable that it separates out performance.
In view of this, special proposition the utility model.
Utility model content
First purpose of the present utility model is to provide a kind of multilayer fuel hose, existing to solve
There is the technical problem that in technology, sebific duct hypotonicity is low.Fuel oil glue provided by the utility model
Pipe has the advantages such as oil resistivity is good, fuel oil permeability is low.
In order to realize above-mentioned purpose of the present utility model, spy by the following technical solutions:
Multilayer fuel hose provided by the utility model, structure is respectively from the inner to the outer
Low precipitation layer, internal layer tack coat, barrier layer, outer bound layer and external protection；Wherein,
Described low precipitation layer is made up of high density polyethylene (HDPE).
In the utility model, it is low precipitation layer with high-density polyethylene layer, owing to high density is gathered
Ethene is the material without solution modeling, thus, using high density polyethylene (HDPE) as multilayer fuel oil glue
Inner tube layer can well solve oligomer and separate out problem.Meanwhile, make with high density polyethylene (HDPE)
For the multilayer fuel hose of internal layer, also than conventional nylon as internal layer pipeline wall thickness
Decline, thus so that the integral thickness of fuel hose has declined, thus be more suitable for
In the internal structures such as the vehicle motor that space is less.
Optionally, in the utility model, the thickness of described high density polyethylene low precipitation layer is
0.1-0.2mm；Preferably, in the utility model, the thickness of described high density polyethylene low precipitation layer
Degree is 0.12-0.18mm；It is furthermore preferred that in the utility model, the low analysis of described high density polyethylene
The thickness going out layer is 0.13-0.15mm.
Optionally, in the utility model, described high density polyethylene (HDPE) be HDPE6070,
The mixture of one or more in HDPE5000S, HDPE TR480, HDPE5306J.
Preferably, in the utility model, described high density polyethylene (HDPE) be HDPE6070,
One or both mixture in HDPE5000S.
In the utility model, by selecting the high-density polyethylene layer of excellent performance as multilayer
The low precipitation layer of fuel hose, reduce further the fuel hose precipitation to oligomer
Can, and then improve the performance of fuel hose.
Optionally, in the utility model, described internal layer tack coat is for nylon layer.
In the utility model, using nylon as internal layer bonding layer material, it is possible to use nylon with
Internal layer low precipitation layer and the nylon viscosity good with barrier layer, improve multilayer fuel hose
Integrated bond performance and integrally-built uniformity.
Optionally, in the utility model, described internal layer adhesive layer thickness is 0.03-0.08mm；
Preferably, in the utility model, described internal layer adhesive layer thickness is 0.04-0.06mm；More excellent
Choosing, in the utility model, described internal layer adhesive layer thickness is 0.05mm.
Optionally, in the utility model, described internal layer tack coat nylon layer is nylon66 fiber, Buddhist nun
The mixture layer of one or more in dragon 612 or nylon 1212；Preferably, this practicality is new
In type, described internal layer tack coat nylon layer is the one in nylon 612 or nylon 1212 or two
The mixture layer planted；It is furthermore preferred that in the utility model, described internal layer tack coat nylon layer
For modification of nylon 612 layers.
In the utility model, by selecting the nylon material of excellent performance as multilayer fuel oil glue
The internal layer tack coat of pipe, further increases the cohesive of each layer in multilayer fuel hose, enters
And the mechanical performance of fuel hose can be improved.
Optionally, in the utility model, described barrier layer be ethylene-tetrafluoroethylene copolymer or
Evoh layer；Preferably, in the utility model, described barrier layer is ethene
-TFE copolymer layer.
In the utility model, with ethylene-tetrafluoroethylene copolymer or ethylene-vinyl alcohol copolymer
As barrier material, it is possible to utilize the barrier property that polymeric material is excellent, it is achieved multilayer
Fuel hose effectively intercepts infiltration to fuel oil.
Optionally, in the utility model, the thickness of described barrier layer is 0.1-0.2mm；Excellent
Choosing, in the utility model, the thickness of described barrier layer is 0.12-0.18mm；It is furthermore preferred that
In the utility model, the thickness of described barrier layer is 0.15-0.16mm.
During this use is novel, by adjusting further and optimizing barrier layer thickness, it is possible to
While realizing the effectively obstruct to fuel oil, additionally it is possible to reduce the thickness of fuel hose further
Degree, so that fuel hose described in the utility model is more suitable for the automobile knot that space is less
Inside structure.
Optionally, in the utility model, described outer bound layer is nylon 612 layer.
In the utility model, using nylon 612 as outer bound layer material, it is possible to use Buddhist nun
Dragon 612 viscosity good with external protection with barrier layer and nylon 612, improve many grate firings
The integrated bond performance of oil rubber hose and integrally-built uniformity.
Optionally, in the utility model, described outer bound layer thickness is 0.03-0.08mm；
Preferably, in the utility model, described outer bound layer thickness is 0.04-0.06mm；More excellent
Choosing, in the utility model, described outer bound layer thickness is 0.05mm.
Optionally, in the utility model, described external protection is nylon 11 layer.Due to Buddhist nun
Dragon 11 has good high-and low-temperature resistance performance and processing characteristics, and meanwhile, nylon 11 is also
There is good corrosion resistance and good sealing.Thus, it is outer protection with nylon 11
Layer, can improve the sealing property of multilayer fuel hose, chemical resistance and mechanical performance.
Optionally, in the utility model, described external protection thickness is 0.4-0.9mm；Excellent
Choosing, in the utility model, the thickness of described external protection is 0.5-0.8mm；It is furthermore preferred that
In the utility model, the thickness of described external protection is 0.6-0.7mm.
In the utility model, by the adjustment of external protection nylon 11 thickness and optimization,
The flexibility of nylon 11 can be utilized and then improve the pliability of multilayer fuel hose, thus improving
Its processing characteristics, and further such that fuel hose described in the utility model is more suitable for space
Less vehicle motor inside configuration.
Compared with prior art, the beneficial effects of the utility model are:
(1), in multilayer fuel hose described in the utility model, it is low with high density polyethylene (HDPE)
Separate out layer material, oligomer precipitation in fuel hose can be avoided；
(2) in multilayer fuel hose described in the utility model, with ethylene-tetrafluoroethylene copolymerization
Thing or ethylene-vinyl alcohol copolymer are as barrier material, it is possible to utilize above-mentioned polymeric material
The barrier property that material is excellent, it is achieved multilayer fuel hose effectively intercepts infiltration to fuel oil；
(3) in multilayer fuel hose described in the utility model, with nylon 11 as external protection,
The sealing property of multilayer fuel hose, chemical resistance and machining property can be improved
Energy.
Accompanying drawing explanation
In order to be illustrated more clearly that the utility model detailed description of the invention or of the prior art
Technical scheme, below by use required in detailed description of the invention or description of the prior art
Accompanying drawing is briefly described, it should be apparent that, the accompanying drawing in describing below is the utility model
Some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The multilayer fuel hose schematic diagram that Fig. 1 is provided by the utility model embodiment, by interior
Layer to outer layer is followed successively by:
Protect outside 1-low precipitation layer, 2-internal layer tack coat, 3-barrier layer, 4-outer bound layer, 5-
Sheath.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below by right
The technical solution of the utility model carries out clear, complete description, based in the utility model
Detailed description of the invention, those of ordinary skill in the art are not before making creative work
Put obtained other embodiments all, broadly fall into the model that the utility model is protected
Enclose.
In description of the present utility model, it should be noted that term " " center ", " on ",
The orientation of the instruction such as D score, "left", "right", " vertically ", " level ", " interior ", " outward "
Or position relationship is based on orientation shown in the drawings or position relationship, it is for only for ease of description
The utility model and simplification describe rather than indicate or imply that the device of indication or element are necessary
There is specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The restriction of utility model.Additionally, term " first ", " second ", " the 3rd " are only used for retouching
State purpose, and it is not intended that indicate or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clear and definite regulation
And restriction, term " is installed ", " being connected ", " connection " should be interpreted broadly, such as,
It can be fixing connection, it is also possible to be to removably connect, or be integrally connected；It can be machine
Tool connects, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to pass through intermediary
It is indirectly connected to, can be the connection of two element internals.Ordinary skill people for this area
For Yuan, above-mentioned term concrete meaning in the utility model can be understood with concrete condition.
Refer to Fig. 1, the utility model embodiment provides multilayer fuel hose, by internal layer extremely
Outer layer is followed successively by: low precipitation layer 1, internal layer tack coat 2, barrier layer 3, outer bound layer 4,
External protection 5.
Wherein, described low precipitation layer 1 is high-density polyethylene layer；Described internal layer tack coat 2
For nylon layer；Described barrier layer 3 is ethylene-tetrafluoroethylene copolymer layer；Described outer bound
Layer 4 is nylon 612 layer；Described external protection 5 is nylon 11 layer.
In another program of the present utility model, this multilayer fuel hose depends on from the inner to the outer
Secondary it is: low precipitation layer 1, internal layer tack coat 2, barrier layer 3, outer bound layer 4, outer guarantor
Sheath 5.
Wherein, described low precipitation layer 1 is HDPE6070 layer；Described internal layer tack coat 2 is
Nylon material layer；Described barrier layer 3 is evoh layer；Described outer bound
Layer 4 is nylon 612 layer；Described external protection 5 is nylon 11 layer.
Refer to Fig. 1, have in a scheme of the present utility model, described multilayer fuel hose
It is followed successively by from the inner to the outer: low precipitation layer 1, internal layer tack coat 2, barrier layer 3, outer layer
Tack coat 4, external protection 5.
Wherein, described low precipitation layer 1 is HDPE6070 layer；Described internal layer tack coat 2 is
Nylon 612 layer；Described barrier layer 3 is evoh layer；Described outer bound
Layer 4 is nylon 612 layer；Described external protection 5 is nylon 11 layer.
Further, described low precipitation layer 1 thickness be 0.15mm, internal layer tack coat 2 thickness
For 0.05mm, barrier layer 3 thickness be 0.15mm, outer bound layer 4 thickness be 0.05mm,
External protection 5 thickness is 0.69mm.
Additionally, further in preferred version, by the method once extruding multi-layer forming,
Preparing multilayer fuel hose shown in Fig. 1, wherein, described sebific duct internal layer is followed successively by outer layer:
The low precipitation layer 1 of HDPE6070 layer, the internal layer tack coat 2 of nylon 612 layer；Ethene-four
The barrier layer 3 of fluoride copolymers layer；The outer bound layer 4 of nylon 612 layer；Nylon 11
The multilayer fuel hose of the external protection 5 of layer.Wherein, described low precipitation layer 1 thickness is
0.15mm, internal layer tack coat 2 thickness are 0.05mm, barrier layer 3 thickness is 0.15mm,
Outer bound layer 4 thickness is 0.05mm, external protection 5 thickness is 0.69mm.It is reality
Execute example 4.
Meanwhile, by the method once extruding multi-layer forming, preparation is the most successively
For: the low precipitation layer 1 of nylon 12 layers, the internal layer tack coat 2 of nylon 612 layer；Ethene-second
The barrier layer 3 of enol copolymer layer；The outer bound layer 4 of nylon 612 layer；By nylon 12
Make the multilayer fuel hose of external protection 5；Wherein, described low precipitation layer 1 thickness is
0.15mm, internal layer tack coat 2 thickness are 0.05mm, barrier layer 3 thickness is 0.15mm,
Outer bound layer 4 thickness is 0.05mm, external protection 5 thickness is 0.69mm.I.e. contrast
Example 1.
Embodiment 4 fuel hose performance contrasts such as table 1 below with comparative example 1 sebific duct performance data
Shown in:
Table 1 embodiment 4 contrasts with comparative example 1 sebific duct performance data
Multilayer fuel hose provided by the utility model, has hypotonicity and preferably
Fuel oil barrier；Meanwhile, it also has sealing property, chemical resistance and mechanical performance.
It is adapted as fuel hose and in the engine of vehicle etc..
Although illustrate and describing the utility model with specific embodiment, but should realize
Arrive, may be made that in the case of without departing substantially from spirit and scope of the present utility model many other
Change and amendment.It is, therefore, intended that include in the following claims belonging to this practicality
All such changes and modifications in novel scope.
Claims (10)
1. a multilayer fuel hose, it is characterised in that described fuel hose is respectively low precipitation layer, internal layer tack coat, barrier layer, outer bound layer and external protection from the inner to the outer；
Wherein, described low precipitation layer is high-density polyethylene layer.
Multilayer fuel hose the most according to claim 1, it is characterised in that described high-density polyethylene layer is a kind of material layer in HDPE6070, HDPE5000S, HDPETR480, HDPE5306J.
Multilayer fuel hose the most according to claim 1, it is characterised in that described internal layer tack coat is nylon layer.
Multilayer fuel hose the most according to claim 3, it is characterised in that described nylon layer is a kind of material layer in nylon66 fiber, nylon 612 or nylon 1212.
Multilayer fuel hose the most according to claim 1, it is characterised in that described barrier layer is ethylene-tetrafluoroethylene copolymer layer or ethylene-vinyl alcohol copolymer layer.
Multilayer fuel hose the most according to claim 4, it is characterised in that described barrier layer thickness is 0.1-0.2mm.
Multilayer fuel hose the most according to claim 1, it is characterised in that described outer bound layer is nylon 612 layer.
Multilayer fuel hose the most according to claim 7, it is characterised in that described outer bound layer thickness is 0.02-0.08mm.
Multilayer fuel hose the most according to claim 1, it is characterised in that described external protection is nylon 11 layer.
Multilayer fuel hose the most according to claim 9, it is characterised in that described external protection thickness is 0.5-0.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521071917.7U CN205424160U (en) | 2015-12-17 | 2015-12-17 | Multilayer fuel rubber tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521071917.7U CN205424160U (en) | 2015-12-17 | 2015-12-17 | Multilayer fuel rubber tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205424160U true CN205424160U (en) | 2016-08-03 |
Family
ID=56538601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521071917.7U Active CN205424160U (en) | 2015-12-17 | 2015-12-17 | Multilayer fuel rubber tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205424160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878644A (en) * | 2020-09-09 | 2020-11-03 | 慈溪市瑞峰管业有限公司 | Gas hose with hybrid reinforced layer and process thereof |
-
2015
- 2015-12-17 CN CN201521071917.7U patent/CN205424160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111878644A (en) * | 2020-09-09 | 2020-11-03 | 慈溪市瑞峰管业有限公司 | Gas hose with hybrid reinforced layer and process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300000 No. 1703, Ge Wan Road, Zhong Tang Industrial Zone, Binhai New Area, Tianjin Patentee after: Tianjin Peng Ling group Limited by Share Ltd Address before: 300000 No. 1703, Ge Wan Road, Zhong Tang Industrial Zone, Binhai New Area, Tianjin Patentee before: Tianjin Pengling Rubber Tube Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |