Reinforced, high pressure, low permeation multilayer hose
a multi-layer, high-pressure technology, applied in the direction of pedestrian/occupant safety arrangements, vehicular safety arrangements, other domestic objects, etc., can solve the problems of low production efficiency, low production efficiency, and inability to recycle braided rubber hoses,
Inactive Publication Date: 2006-09-14
COOPER STANDARD AUTOMATIVE INC
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Benefits of technology
[0007] The present invention is directed to a multi-layer tube comprising a first liquid contacting layer. The first layer is composed of a melt-processible thermoplastic material. The multi-layer tube also has a reinforcement layer disposed radially outward from the first layer in essentially overlying relationship thereto. The reinforcement layer is composed of at least one essentially continuous elongated strip of material which is typicall
Problems solved by technology
Production of reinforced braided hoses is complex and expensive.
Additionally, braid-reinforced rubber hoses generally are not recyclable due to the cross-linking properties of the rubber materials employed.
However, such tubes typically lack necessary properties for high pressure applications such as kink resistance and the like.
Heretofore, reinforcement of multi-layered polymeric tubes has been problematic.
Coextrusion methods are difficult to apply over or around woven or braided reinforcement materials in a manner which will assure the necessary layer-to-layer integration required for optimum tubing function and structure.
Method used
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Embodiment Construction
[0018] The present invention is a reinforced, high pressure hose for the transport of aqueous fluids or organic fluids such as those containing hydrocarbons. The reinforced hose 10 includes an inner layer 14 and a reinforcement layer 12 which is composed of at least one essentially continuous elongated strip 20 positioned around the inner layer 14. The elongated strip 20 which makes up the reinforcement layer 24 typically has two opposed longitudinal edges 32, 34 configured such that when the elongated strip 20 is wound around the inner tube, the edges 32, 34 are in an overlying relationship to one another. The reinforced, high pressure hose of the present invention typically exhibits low hydrocarbon permeation. As used herein, the term “low hydrocarbon permeation” is defined as a hydrocarbon permeation rate at or lower than 15 g / m2 / day (CE 10, CM 15, SAE C fuel).
[0019] The inner layer 14 of the tube 10 may be formed by any suitable method such as by extruding suitable thermoplasti...
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Abstract
A reinforced, high pressure hose is disclosed for use in the transport of high pressure fluids. The hose includes a multilayered inner tube capable of prolonged exposure to fluids such as those containing hydrocarbons, and a reinforcement layer overlaying the inner tube. The reinforcement layer includes at least one reinforcement strip wrapped about the inner tube and with the edges of the strip in an overlying relationship.
Description
BACKGROUND [0001] This application is a continuation of U.S. Ser. No. 10 / 256,621 filed Sep. 27, 2002, currently pending. [0002] The present invention relates to a flexible high pressure reinforced thermoplastic hose construction. The present invention more particularly relates to reinforced, high-pressure rated hoses having a low hydrocarbon permeation multilayer hose for use in a fuel hose or a brake hose as well as in aqueous fluid transport. [0003] Hose assemblies are used for a variety of applications such as hose assemblies for automotive brake lines and fuel lines as well as various non-automotive uses such as water delivery. The hose should be strong, durable and resistant to heat, chemical degradation, and high pressures. When hoses are used to carry organic fluids and vapor, as in fuel lines, the hose should be resistant to permeation by hydrocarbons contained in the fluids so transported. In order to be effective, fluid transport hoses should also be flexible and resistant...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B60R21/16B32B1/08B32B15/08F16L11/08
CPCB32B1/08B32B15/08F16L11/082Y10T428/1362Y10T428/1355Y10T428/1393Y10T428/139Y10T428/1352
Inventor BOLES, MICHAEL W.NIE, TAO
Owner COOPER STANDARD AUTOMATIVE INC