# US 8,739,765 B2 · Hose coupling element > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,739,765 B2 - Document ID: US8739765B2 - Status: Granted - Kind: B2 - Application number: 13/283,336 - Filed: 2011-10-27 - Published: 2012-05-03 - Granted: 2014-06-03 - Earliest claimed: 2010-10-27 - Assignees: Ford Global Technologies, LLC - Applicants: Andreas Franke - Inventors: Andreas Franke - Web page: https://patentgrep.com/patent/US8739765B2 ## CPC - F16L 25/01: specially adapted for realising electrical conduction between the two pipe ends of the joint or between parts thereof - F02D 33/003: {Controlling the feeding of liquid fuel from storage containers to carburettors or fuel-injection apparatus (control of electrical fuel pumps F02D41/3082, controlling fuel flow to a common rail F02D41/3845); Failure or leakage prevention; Diagnosis or detection of failure; Arrangement of sensors in the fuel system; Electric wiring; Electrostatic discharge} - F02M 37/0017: {related to fuel pipes or their connections, e.g. joints or sealings (F02M55/004 takes precedence)} - F02M 37/103: {Mounting pumps on fuel tanks} - F16L 33/01: specially adapted for hoses having a multi-layer wall - F16L 33/22: with means not mentioned in the preceding groups for gripping the hose between inner and outer parts - F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL - F02D: CONTROLLING COMBUSTION ENGINES (vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed B60K31/00; conjoint control of vehicle sub-units of different type or different function, road vehicle drive control systems for purposes other than the control of a single sub-unit B60W) - F02M: SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF ## Abstract The disclosure relates to a coupling element between a hose and a further hydraulic line which may both be, for example, part of a fuel supply system. One system to couple said elements includes a hose-like element including an electrically conductive inside. Further a connecting element couples the hose-like element to the hydraulic line element, where the hose-like element includes an inverted double-walled end. In this way, electrostatic charge may be dissipated via the electrically conductive inside and fastening element. ## Claims ### Claim 1 A coupling system, comprising: a hose-like element including an electrically conductive inside turning inside-out at an inverted double-walled end; a hydraulic line element; a connecting element coupling the hose-like element to the hydraulic line element the inverted double-walled end housing part of the connecting element; and an annular fastening element clamped directly around the inverted double-walled end to be in electrical contact with an outside of the inverted double-walled end. ### Claim 2 (depends on 1) The coupling system as claimed in claim 1, wherein the hose-like element and the hydraulic line element are part of a fuel supply system for an internal combustion engine or a heating system. ### Claim 3 (depends on 1) The coupling system as claimed in claim 1, wherein the hose-like element is coupled to a fuel delivery module. ### Claim 4 (depends on 1) The coupling system as claimed in claim 1, wherein the hydraulic line element is integrated in a flange. ### Claim 5 (depends on 1) The coupling system as claimed in claim 1, wherein the fastening element is a clamping ring or a clamping clip. ### Claim 6 (depends on 1) The coupling system as claimed in claim 1, wherein the connecting element includes barb-shaped elements to couple the hose-like element to the hydraulic line element. ### Claim 7 (depends on 1) The coupling system as claimed in claim 1, wherein the connecting element is integral with the hydraulic line element. ### Claim 8 (depends on 1) The coupling system as claimed in claim 1, wherein the electrically conductive inside is coupled to a predetermined electric potential by a wire via the fastening element. ### Claim 9 (depends on 8) The coupling system as claimed in claim 8, wherein the predetermined electric potential comprises a ground potential of a vehicle or a ground potential of a heating system. ### Claim 10 A fuel system for a vehicle, comprising: a fuel tank; a fuel line configured to deliver fuel to an engine of the vehicle, the fuel line connected to a fuel hose of the fuel tank via an adapter, the fuel hose including an electrically conductive inside, and including an end turned inside-out to form an inverted double-walled end such that part of the electrically conductive inside is positioned on an outside of the fuel line; and a connecting branch fluidically coupling the fuel hose to the adapter, the connecting branch housed in the inverted double-walled end, the inverted double-walled end coupled to a fastening element with the fastening element in electrical contact with an outside of the inverted double-walled end of the hose-like element, the fastening element connected to a wire. ### Claim 11 (depends on 10) The fuel system of claim 10, wherein the wire is connected to one or more grounding elements of the vehicle. ### Claim 12 (depends on 11) The fuel system of claim 11, wherein the one or more grounding elements comprises a fuel pump coupled to the fuel tank. ### Claim 13 (depends on 10) The fuel system of claim 10, wherein the fastening element comprises a clamp made of conductive material. ### Claim 14 (depends on 10) The fuel system of claim 10, wherein the connecting branch is housed in the fuel hose and connected therein via barb-shaped elements. ### Claim 15 A method for dissipating electrostatic charge, comprising: pumping fuel from a fuel tank to an engine through a connecting branch coupled to a fuel line, the connecting branch housed in an inverted double-walled end portion of a fuel hose, the fuel hose including an electrically conductive inside turned inside-out, the inverted double-walled end portion coupled to a conductive fastening element; and directing electrostatic charge to the conductive fastening element connected to a wire. ### Claim 16 (depends on 15) The method of claim 15, wherein the wire is connected to one or more grounded elements, the method further comprising: directing electrostatic charge from the fuel to the fuel hose; and directing electrostatic charge from the fuel hose to the conductive fastening element. ### Claim 17 (depends on 15) The method of claim 15, wherein pumping fuel from a fuel tank to the engine further comprises pumping fuel via a fuel pump, the fuel pump connected to the wire, and wherein the electrically conductive inside is turned inside-out onto an outside of the inverted double-walled end portion. ### Claim 18 (depends on 15) The method of claim 15, wherein the connecting branch is further configured to couple a fuel hose to an adapter coupled to the fuel line in a releasable manner. ### Claim 19 (depends on 15) The method of claim 15, wherein the fuel is pumped from the fuel tank to the engine through the fuel hose, the fuel hose including a conductive inside. ### Claim 20 (depends on 19) The method of claim 19, wherein the conductive inside of the fuel hose is continuous with an outside of the inverted double-walled end portion of the fuel hose.