Patent Application
20160047498
The field to which the disclosure generally relates to includes low permeation fuel filler hoses.
Fuel may be pumped through a hose.
One variation may include a fuel filler hose construction which may include a first inner fuel-impermeable rubber layer and a second outer wall layer.
One variation may include a hose that may include a first inner platy-nitrile layer that may include a nitrile material matrix that may include platy-filler orientated perpendicular to the length of the hose and a second outer wall layer.
One variation may include a first inner platy-nitrile layer, a second layer that may include a THV barrier, a third reinforcement layer, and a fourth outer CPE rubber layer.
One variation may include a hose that may include a first inner platy-nitrile layer that may include a nitrile material matrix that may include platy-filler orientated perpendicular to the length of the hose, a second layer that may include a barrier, a third reinforcement layer, and a fourth outer rubber layer.
One variation may include a hose that may include a first inner platy-nitrile layer that may include a nitrile material matrix that may include platy-filler orientated perpendicular to the length of the hose, a second layer that may include a THV barrier, a third reinforcement layer, and a fourth outer CPE rubber layer.
Other illustrative variations within the scope of the invention will become apparent from the detailed description provided hereinafter. It should be understood that the detailed description and enumerated variations, while disclosing optional variations, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Select examples of variations within the scope of the invention will become more fully understood from the detailed description and the accompanying drawings, wherein:
The following description of variations is merely illustrative in nature and is in no way intended to limit the scope of the invention, its application, or uses. The following description of variants is only illustrative of components, elements, acts, products, and methods considered to be within the scope of the invention and are not in any way intended to limit such scope by what is specifically disclosed or not expressly set forth. The components, elements, acts, products, and methods as described herein may be combined and rearranged other than as expressly described herein and still are considered to be within the scope of the invention.
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The liner layer may be a hose or line having a generally tubular structure, including an inner circumference and an outer circumference, and may be concentric with any or all of the accompanying layers in the multilayer construction of the fuel hose. The liner layer may be made of nitrile butadiene rubber, otherwise known as nitrile rubber, or any other suitable polymer material having desirable resistance to fuels and desirable impermeability to fuels. The liner layer may be a platy-nitrile liner, wherein the nitrile rubber may include particles constructed and arranged to make the liner layer more resistant to fuel permeation. The liner layer may be constructed and arranged to prevent fuel from permeating the liner layer through its outer circumference or from an end of the liner layer or multilayer fuel hose.
The particles that may be in the liner layer may be of a generally spherical, cube, needle, fiber, block, or plate-like structure sufficient to aid in increasing fuel impermeability of the liner layer. Particle size may range from about 0.05 to about 40 micrometers in their largest dimension or from about 2 to about 40 micrometers in their largest dimension. The particles may be arranged within the liner layer such that their largest dimension extends perpendicular from the length of the liner layer.
The cover layer may be a hose or line having a generally tubular structure, including an inner circumference and an outer circumference, and may be concentric with any or all of the accompanying layers in the multilayer construction of the fuel hose. The cover layer may be the outermost layer of the multilayer construction of the fuel hose and may be flexible with abrasion, ozone, heat, and weathering resistance. The cover layer may be formed from chlorinated polyethylene or any suitable chlorinated polyethylene (CPE) rubber compound.
The barrier layer may be a hose or line having a generally tubular structure, including an inner circumference and an outer circumference, and may be concentric with any or all of the accompanying layers in the multilayer construction of the fuel hose. The barrier layer may overlay the liner layer or the reinforcement layer, or both, and may lie below the reinforcement layer or the cover layer, or both. The barrier layer may be constructed and arranged to provide chemical resistance (low reactivity) to the multilayer construction of the fuel hose. In a number of variations the barrier layer may be formed from a terpolymer consisting of three monomers, such a tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride (THV) or any suitably flexible fluoropolymer.
The reinforcement layer may be a hose or line having a generally tubular structure, including an inner circumference and an outer circumference, and may be concentric with any or all of the accompanying layers in the multilayer construction of the fuel hose. The reinforcement layer may be constructed and arranged to provide structural support and durability to the multilayer construction of the fuel hose.
The cover layer, barrier layer, and reinforcement layer may be circumferentially arranged outside of the platy-nitrile layer in any order as is desirable for use of the multilayer hose. Additionally, the multilayer hose may include or may not include any of the cover layer, barrier layer, and reinforcement layer overlaying the platy-nitrile layer such that the multilayer hose may include any combination or sub-combination of layers
According to a first variation, a multilayer fuel hose may be constructed of a first layer that may be a liquid impermeable liner layer including a polymer matrix and a plurality of particles dispersed therein to increase liquid impermeability of the liner layer.
A second variation may include a multilayer fuel hose as set forth in the first variation further including a second layer circumferentially overlaying the first layer and being constructed and arranged to form a flexible, abrasion, heat, ozone, and weather resistant outer layer functioning to protect the liner layer from damage or environmental effects.
A third variation may include a multilayer fuel hose as set forth in the second variation wherein a third layer may be disposed between the first layer and the second layer. The third layer may be a barrier layer constructed and arranged to provide chemical resistance (low reactivity) to the multilayer construction of the fuel hose.
A fourth variation may include a multilayer fuel hose as set forth in the second variation wherein a third layer may be a reinforcement layer constructed and arranged to provide structural support and durability to the multilayer construction of the hose. The third layer may be disposed between the first layer and the second layer of the multilayer hose.
A fifth variation may include a multilayer fuel hose as set forth in the second through fourth variations wherein the first layer may be a platy-nitrile liner layer including a nitrile rubber matrix or any other suitable polymer material having desirable resistance to fuels and desirable impermeability to fuels. The liner layer may be a platy-nitrile liner, wherein the nitrile rubber matrix may include particles constructed and arranged to make the liner layer more resistant to fuel permeation.
A sixth variation may include a multilayer fuel hose as set forth in the first through fifth variations wherein the cover layer may be formed from chlorinated polyethylene or any suitable chlorinated polyethylene rubber compound to increase flexibility and abrasion and weathering resistance.
A seventh variation may include a multilayer fuel hose as set forth in the first through sixth variations wherein the first layer may be a platy-nitrile liner layer including a nitrile rubber matrix or any other suitable polymer material having desirable resistance to fuels and desirable impermeability to fuels. The liner layer may be a platy-nitrile liner, wherein the nitrile rubber matrix may include particles constructed and arranged to make the liner layer more resistant to fuel permeation and wherein the cover layer may be formed from chlorinated polyethylene or any suitable chlorinated polyethylene rubber compound to increase flexibility and abrasion and weathering resistance
An eighth variation may include a multilayer fuel hose as set forth in the first through seventh variations wherein the first layer may be a platy-nitrile liner layer including a nitrile rubber matrix or any other suitable polymer material having desirable resistance to fuels and desirable impermeability to fuels. The liner layer may be a platy-nitrile liner, wherein the nitrile rubber matrix may include particles constructed and arranged to make the liner layer more resistant to fuel permeation wherein the platy-filler particles may be orientated such that the largest dimension of the platy-filler extends perpendicularly from the length of the multilayer fuel hose.
A ninth variation may include a multilayer fuel hose including a liner layer, a barrier layer overlaying the liner layer, a reinforcement layer overlaying the barrier layer, and a cover layer overlaying the reinforcement layer.
A tenth variation may include a multilayer fuel hose as set forth in the ninth variation wherein the reinforcement layer may be constructed and arranged to provide structural support and durability to the multilayer construction of the fuel hose.
An eleventh variation may include a multilayer fuel hose as set forth in the ninth through tenth variations wherein the barrier layer may be constructed and arranged to provide chemical resistance (low reactivity) to the multilayer construction of the fuel hose.
A twelfth variation may include a multilayer fuel hose as set forth in the ninth through eleventh variations wherein the cover layer may be formed from chlorinated polyethylene or any suitable chlorinated polyethylene rubber compound to increase flexibility and abrasion and weathering resistance.
A thirteenth variation may include a multilayer fuel hose as set forth in the ninth through twelfth variations wherein the liner layer may be made of nitrile butadiene rubber or any other suitable polymer material having desirable resistance to fuels and desirable impermeability to fuels wherein the nitrile rubber may include plate-like particles constructed and arranged to make the liner layer more resistant to fuel permeation.
A fourteenth variation may include a multilayer fuel hose as set forth in the thirteenth variation wherein the plate-like particles may include micro or nano-plates that may be arranged within the liner layer such that the plates are arranged so that their longest dimension extends perpendicular to the length of the multilayer fuel hose.
A fifteenth variation may include a multilayer fuel hose as set forth in the sixth through thirteenth variations wherein the plate-like particles may include a first face and a second face, and a perimeter, where the first face and second face may make up a majority of the surface area of the plate-like particles, and the plate-like particles may range from about 0.05 to 40 micrometers in the longest axial direction.
A sixteenth variation may include a multilayer fuel hose as set forth in the sixth through fourteenth variations wherein the longest dimension of the plate like particles is between about 2 to 40 micrometers in the longest axial direction.
A seventeenth variation may include a multilayer fuel hose including a liner layer, a barrier layer overlaying the liner layer, a reinforcement layer overlaying the barrier layer, a cover layer overlaying the barrier layer, and a hose fitting overlaying and sealingly closing each end of the multilayer fuel hose and wherein an end of each of the liner layer, barrier layer, and reinforcement layer sealingly abut the hose fitting.
An eighteenth variation may include a multilayer fuel hose as set forth in the seventeenth variation wherein the liner layer may be made of nitrile butadiene rubber or any other suitable polymer material having desirable resistance to fuels and desirable impermeability to fuels wherein the nitrile rubber may include plate-like particles constructed and arranged to make the liner layer more resistant to fuel permeation.
A nineteenth variation may include a multilayer fuel hose as set forth in the eighteenth variation wherein the plate-like particles are arranged so that their longest dimension extends perpendicular to the length of the multilayer fuel hose.
A twentieth variation may include a multilayer fuel hose as set forth in the eighteenth and nineteenth variations wherein the plate-like particles are constructed and arranged to prevent fuel from permeating the multilayer fuel hose in the direction of its length and in the direction of its radius.
The above description of variations of the invention is merely demonstrative in nature and, thus, variations thereof are not to be regarded as a departure from the spirit and scope of the inventions disclosed within this document.
