Provided is a flexible hose assembly having an inner nipple coupled to an inner flexible hose and an outer nipple at least partially surrounding the inner nipple and being coupled to an outer flexible hose, wherein a first fluid flowing through the inner nipple is directed outward in-between the inn
Provided is a flexible hose assembly having an inner nipple coupled to an inner flexible hose and an outer nipple at least partially surrounding the inner nipple and being coupled to an outer flexible hose, wherein a first fluid flowing through the inner nipple is directed outward in-between the inner and outer flexible hoses and a second fluid flowing in-between the inner and outer nipples is directed inward to the inner flexible hose. By directing the second fluid inward and the first flow outward, the outer flexible hose is prevented from collapsing on the inner flexible hose when pressure of the second fluid flowing through the inner flexible hose is greater than a pressure of the first fluid flowing through the outer flexible hose.
대표청구항▼
1. A flexible hose assembly configured to be coupled to a manifold, the flexible hose assembly including: an inner hose assembly having: a first inner nipple having a proximal portion and a distal portion and a first bore extending from the proximal portion to an inner portion of the first inner nip
1. A flexible hose assembly configured to be coupled to a manifold, the flexible hose assembly including: an inner hose assembly having: a first inner nipple having a proximal portion and a distal portion and a first bore extending from the proximal portion to an inner portion of the first inner nipple;an inner flexible hose for conveying fluid through a first fluid passage formed interiorly of the inner flexible hose, the inner flexible hose having a first end receiving at least a portion of the distal portion of the first inner nipple therein and being coupled thereto; anda first connector exteriorly surrounding at least a portion of the inner flexible hose, receiving the distal portion of the first inner nipple therein, and coupled to the first inner nipple and the inner flexible hose;an outer hose assembly having: a first outer nipple at least partially exteriorly surrounding the first inner nipple and being coupled thereto, the first outer nipple having a proximal portion and a distal portion and a first outer nipple passage extending from the proximal portion of the first outer nipple to the distal portion of the first outer nipple;an outer flexible hose exteriorly surrounding the inner flexible hose and having a first end receiving at least a portion of the distal portion of the first outer nipple therein and being coupled thereto, the outer flexible hose forming with an outer wall of the inner flexible hose a second fluid passage; anda second connector exteriorly surrounding at least a portion of the outer flexible hose, receiving the distal portion of the first outer nipple therein, and coupled to the first outer nipple and the outer flexible hose. 2. The flexible hose assembly according to claim 1, wherein the first inner nipple has one or more diverging passages extending outwardly from the bore at the inner portion to an outer surface of the inner nipple. 3. The nipple assembly according to claim 2, further including one or more flats on an outer surface of the first inner nipple for each of the one or more diverging passages, wherein the one or more flats define with an inner surface of the first outer nipple a first flow path from the diverging passages to the distal portion of the first inner nipple. 4. A flexible hose assembly configured to be coupled to a manifold, the flexible hose assembly including: an inner hose assembly having: a first inner nipple having a proximal portion and a distal portion and a first bore extending from the proximal portion to an inner portion of the inner nipple;an inner flexible hose for conveying fluid through a first fluid passage formed interiorly of the inner flexible hose, the inner flexible hose having a first end surrounding at least a portion of the distal portion of the first inner nipple and being coupled thereto; anda first connector surrounding at least a portion of the inner flexible hose and the distal portion of the first inner nipple and being coupled to the nipple and the inner flexible hose;an outer hose assembly having: a first outer nipple at least partially surrounding the first inner nipple and being coupled thereto, the first outer nipple having a proximal portion and a distal portion and a first outer nipple passage extending from the proximal portion to the distal portion;an outer flexible hose surrounding the inner flexible hose and having a first end surrounding at least a portion of the distal portion of the first outer nipple and being coupled thereto, the outer flexible hose forming with an outer wall of the inner flexible hose a second fluid passage; anda second connector surrounding at least a portion of the outer flexible hose and the distal portion of the first outer nipple and being coupled to the first outer nipple and the outer flexible hose;wherein the first inner nipple has one or more diverging passages extending outwardly from the bore at the inner portion to an outer surface of the inner nipple, and one or more converging passages extending inwardly from the outer surface of the first inner nipple to a second bore extending from a second inner portion of the first inner nipple to the distal portion of the first inner nipple. 5. The nipple assembly according to claim 4, further including one or more flats on the outer surface of the first inner nipple on the proximal portion for each of the one or more converging passages, wherein the one or more flats and a portion of the outer surface of the first inner nipple downstream of the one or more flats define with the inner surface of the first outer nipple a second flow path from the proximal portion of the first inner nipple to the converging passages. 6. The nipple assembly according to claim 4, wherein fluid flowing through the first bore does not communicate with fluid flowing through the second bore. 7. The nipple assembly according to claim 1, wherein a path for a first fluid to the first fluid passage is formed by a second flow path defined by one or more flats on the outer surface of the first inner nipple on the proximal portion and the inner surface of the first outer nipple, one or more converging passages, and a second bore. 8. The nipple assembly according to claim 1, wherein a path for a second fluid to the second fluid passage is formed by the first bore, one or more diverging passages, and a first flow path defined by one or more flats on the outer surface of the first inner nipple and the inner surface of the first outer nipple. 9. The nipple assembly according to claim 1, wherein the inner and outer flexible hoses each include at least one metal layer and at least one PTFE layer. 10. The flexible hose assembly according to claim 1, further including one or more aligning rings for providing internal support for the outer flexible hose while also allowing for flow of fluid through the second fluid passage. 11. The flexible hose assembly according to claim 1, further including a fitting coupled to the first outer nipple and configured to be coupled to the manifold. 12. A flexible hose assembly configured to be coupled to a manifold, the flexible hose assembly including: an inner hose assembly having: a first inner nipple having a proximal portion and a distal portion and a first bore extending from the proximal portion to an inner portion of the inner nipple;an inner flexible hose for conveying fluid through a first fluid passage formed interiorly of the inner flexible hose, the inner flexible hose having a first end surrounding at least a portion of the distal portion of the first inner nipple and being coupled thereto; anda first connector surrounding at least a portion of the inner flexible hose and the distal portion of the first inner nipple and being coupled to the nipple and the inner flexible hose;an outer hose assembly having: a first outer nipple at least partially surrounding the first inner nipple and being coupled thereto, the first outer nipple having a proximal portion and a distal portion and a first outer nipple passage extending from the proximal portion to the distal portion;an outer flexible hose surrounding the inner flexible hose and having a first end surrounding at least a portion of the distal portion of the first outer nipple and being coupled thereto, the outer flexible hose forming with an outer wall of the inner flexible hose a second fluid passage; anda second connector surrounding at least a portion of the outer flexible hose and the distal portion of the first outer nipple and being coupled to the first outer nipple and the outer flexible hose;wherein the inner hose assembly further includes:a second inner nipple having a proximal portion and a distal portion and a passage extending from the proximal portion to the distal portion in fluidic communication with the first flow passage, wherein the inner flexible hose has a second end surrounding at least a portion of the distal portion of the second inner nipple and being coupled thereto; anda third connector surrounding at least a portion of the inner flexible hose and the distal portion of the second inner nipple and being coupled to the inner flexible hose and the second inner nipple. 13. The flexible hose assembly according to claim 12, wherein the outer hose assembly further includes: a second outer nipple at least partially surrounding the second inner nipple, the second outer nipple having a proximal portion and a distal portion and a second outer nipple passage extending from the proximal portion of the second outer nipple to the distal portion of the second outer nipple, wherein the outer flexible hose has a second end surrounding at least a portion of the distal portion of the second outer nipple and being coupled thereto; anda fourth connector surrounding at least a portion of the outer flexible hose and the distal portion of the second outer nipple and being coupled to the second outer nipple and the outer flexible hose. 14. The flexible hose assembly according to claim 13, wherein the second inner nipple includes one or more flats on an outer surface of the second inner nipple, wherein the one or more flats and a portion of the outer surface of the second inner nipple downstream of the one or more flats define with an inner surface of the second outer nipple a flow path from the distal portion of the second outer nipple to the proximal portion of the second outer nipple. 15. The flexible hose assembly according to claim 12, further including a fitting coupled to the second outer nipple and configured to be coupled to an injector. 16. A fuel manifold for a gas turbine engine in combination with the flexible hose assembly according to claim 1, wherein the fuel manifold includes one or more manifold fittings surrounding a manifold hose, and wherein respective flexible hose assemblies are coupled to each of the one or more manifold fittings. 17. A flexible hose assembly configured to be coupled to a manifold, the flexible hose assembly including: an inner hose assembly having an inner nipple and an inner flexible hose coupled to the inner nipple, the inner flexible hose having an interiorly formed first fluid passage for conveying fluid therethrough; andan outer hose assembly having an outer nipple at least partially surrounding the inner nipple and an outer flexible hose coupled to the outer nipple and surrounding the inner flexible hose, the outer flexible hose forming with an outer wall of the inner flexible hose a second fluid passage,wherein the inner nipple includes one or more diverging passages for directing fluid flowing through the inner nipple outward to the second fluid passage and one or more converging passages for directing fluid flowing in-between the inner and outer nipples inward to the first fluid passage. 18. The flexible hose assembly according to claim 17, wherein the inner nipple has a proximal portion and a distal portion and a first bore extending from the proximal portion to an inner portion of the inner nipple, wherein the outer nipple has a proximal portion and a distal portion and a passage extending from the proximal portion to the distal portion, and wherein the inner nipple has one or more diverging passages extending outwardly from the bore at the inner portion to an outer surface of the inner nipple. 19. The flexible hose assembly according to claim 17, further including: one or more flats on the outer surface of the inner nipple for each of the one or more diverging passages, wherein the one or more flats define with an inner surface of the outer nipple a first flow path from the diverging passages to the distal portion of the inner nipple; andone or more flats on the outer surface of the inner nipple on the proximal portion for each of the one or more converging passages, wherein the one or more flats and a portion of the outer surface of the inner nipple downstream of the one or more flats define with the inner surface of the outer nipple a second flow path from the proximal portion of the inner nipple to the converging passages. 20. A fuel manifold system for a gas turbine engine in combination with the flexible hose assembly according to claim 1, wherein the fuel manifold system includes: a first fuel manifold having a first plurality of fuel injectors for being disposed about the gas turbine engine, and wherein respective flexible hose assemblies are coupled to each of the first plurality of fuel injectors, anda second fuel manifold having a second plurality of fuel injectors for being disposed about the gas turbine engine, and wherein respective flexible hose assemblies are coupled to each of the second plurality of fuel injectors,wherein the first plurality of fuel injectors and the second plurality of fuel injectors are disposed in an alternating arrangement about the gas turbine engine.
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