A nozzle includes a nozzle body having a nozzle tip for engaging a fuel hose coupling, the tip extending from the body, and a valve sleeve for opening and closing a fuel path between the tip and the body. The tip is mounted within the body on a flexible shaft, so as to accommodate misalignment betwe
A nozzle includes a nozzle body having a nozzle tip for engaging a fuel hose coupling, the tip extending from the body, and a valve sleeve for opening and closing a fuel path between the tip and the body. The tip is mounted within the body on a flexible shaft, so as to accommodate misalignment between the nozzle and the fuel hose coupling. This eliminates the need for a bearing at the end of the shaft, which causes a pressure drop in the nozzle. The shaft is axially slidable in the mounting in a first portion of the nozzle body. The first and second portions of the body are joined with a weak link, which is frangible in the event of excessive load, to release the abutment and allow the nozzle tip to travel towards the body and close the fuel path. Thus a separate shut-off valve is not required. Also a pressure regulator sleeve moves out of the nozzle body towards the nozzle tip in the event of excessive fuel pressure.
대표청구항▼
1. A nozzle for a refuelling probe, the nozzle comprising: a body having a channel for fuel, a nozzle tip for engaging with a fuel hose coupling to open a fuel valve in the coupling,a valve member having a first position in which an inlet fuel path between the body and the tip is closed, and a secon
1. A nozzle for a refuelling probe, the nozzle comprising: a body having a channel for fuel, a nozzle tip for engaging with a fuel hose coupling to open a fuel valve in the coupling,a valve member having a first position in which an inlet fuel path between the body and the tip is closed, and a second position in which the inlet fuel path is open for allowing fuel flow from the hose coupling to the channel, anda first body portion and a second body portion, and the nozzle tip being mounted to the first body portion so as to be movable to an inoperative position of the nozzle to close the fuel path, the second body portion comprising an abutment member for resisting the movement of the nozzle tip towards the inoperative position, and a joint between the first and second portions, the joint being arranged to break when the nozzle experiences excessive loads, such that the nozzle tip is released from the abutment member and closes the fuel path. 2. A nozzle for a refuelling probe as claimed in claim 1, in which the nozzle tip extends from the body, and is axially movable towards the body to close the fuel path. 3. A nozzle for a refuelling probe, as claimed in claim 1, in which the nozzle tip is mounted to the body by a mounting member, the mounting member being resiliently flexible so as to allow relative movement of the tip, for accommodating misalignment between the nozzle and the coupling. 4. A nozzle for a refuelling probe as claimed in claim 3, in which the mounting member is axially movable, and the abutment member acts at a location which is one of at and adjacent the proximal end thereof. 5. A nozzle for a refuelling probe as claimed in claim 3, in which the mounting member is an axially extending shaft. 6. A nozzle for a refuelling probe as claimed in claim 1, in which the valve member is a valve sleeve mounted on the nozzle body for one of axial movement inwardly of the nozzle body and axial movement outwardly of the nozzle body. 7. A nozzle for a refuelling probe as claimed in claim 6, in which the valve sleeve is biased outwardly of the body to abut against the nozzle tip in the closed position thereof. 8. A nozzle for a refuelling probe as claimed in claim 7, in which the sleeve is arranged to be pushed back against the bias into the body when the nozzle tip engages the coupling, thereby opening the path between the nozzle tip and the body. 9. A nozzle for a refuelling probe as claimed in claim 6, in which the valve sleeve has a smooth outside surface profile. 10. A nozzle for a refuelling probe as claimed in claim 1, comprising a regulator valve member which is biased towards an open position, and which is operable upon the fuel pressure exceeding a predetermined level, to move against the bias towards a closed position, so as to effect at least one of restricting and closing the fuel path. 11. A nozzle for a refuelling probe as claimed in claim 10, in which the regulator valve member is a regulator sleeve, mounted for one of axial movement inwardly of the nozzle body and axial movement outwardly of the nozzle body. 12. A nozzle for a refuelling probe as claimed in claim 11, in which the valve member is a valve sleeve mounted on the nozzle body for one of axial movement inwardly of the nozzle body and axial movement outwardly of the nozzle body, and the regulator sleeve is mounted concentrically with the valve sleeve for one of movement with the valve sleeve and movement outwardly of the valve sleeve. 13. A nozzle for a refuelling probe as claimed in claim 10, in which the regulator valve member has a surface which is at least one of in communication with and exposed to the fuel channel, and an opposing surface in communication with the atmosphere. 14. A nozzle for a refuelling probe as claimed in claim 6, comprising a regulator valve member which is biased towards an open position, and which is operable upon the fuel pressure exceeding a predetermined level, to move against the bias towards a closed position, so as to effect at least one of restricting and closing the fuel path, in which the valve sleeve has a smooth outside surface profile. 15. A nozzle for a refueling probe, the nozzle comprising: a body having a channel for fuel,a nozzle tip for engaging with a fuel hose coupling, the nozzle tip extending from the body such that a path for fuel is formed between the body and the tip,a valve member having a first position in which the path between the body and the nozzle tip is closed, and a second position in which the path between the body and the nozzle tip is open for allowing fuel flow from the coupling to the channel, anda regulator valve member which is biased towards an open position, for allowing the fuel path to be open, and which is operable upon the fuel pressure in the nozzle exceeding a predetermined level, to move towards a closed position, so as to effect at least one of restricting and closing the fuel path. 16. A nozzle for a refuelling probe as claimed in claim 15, in which the regulator valve member is a regulator sleeve, mounted for one of axial movement inwardly of the nozzle body and axial movement outwardly of the nozzle body. 17. A nozzle for a refuelling probe as claimed in claim 16, in which the valve member is a valve sleeve mounted on the nozzle body for one of axial movement inwardly of the nozzle body and axial movement outwardly of the nozzle body, and the regulator sleeve is mounted concentrically with the valve sleeve for one of movement with the valve sleeve and movement outwardly of the valve sleeve. 18. A nozzle for a refuelling probe as claimed in claim 15, in which the regulator valve member has a surface which is at least one of in communication with and exposed to the fuel channel, and an opposing surface in communication with the atmosphere. 19. A nozzle for a refuelling probe as claimed in claim 15, in which the valve member is a valve sleeve mounted on the nozzle body for one of axial movement inwardly of the nozzle body and axial movement outwardly of the nozzle body, and in which the valve sleeve has a smooth outside surface profile.
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이 특허에 인용된 특허 (5)
Souslin Richard E. (Seattle WA), Aerial refueling apparatus.
Huegerich, Daniel Joseph; Funseth, Travis Gene; O'neal, Tonya Marie; Humpal, Richard Allen, Fluid coupler including valve arrangement for connecting intake conduit of sprayer to transfer conduit of nurse tank during refill operation.
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