[특허]Fluid-tight joint with inclined flange face

[미국특허] Fluid-tight joint with inclined flange face 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16L-023/032
출원번호	US-0768427 (1991-09-13)
우선권정보	GB-0005894 (1989-03-15)
국제출원번호	PCT/GB90/00377 (1990-03-13)
§371/§102 date	19910913 (19910913)
국제공개번호	WO-9010812 (1990-09-20)
발명자 / 주소	Lewis Leo V. (Leicester GB2) Hyde Thomas H. (Nottingham GB2) Fessler Heinrich (Nottingham GB2) Marsden Barry J. (Cheshire GB2)
출원인 / 주소	Rolls-Royce plc (London GB2 03)
인용정보	피인용 횟수 : 45 인용 특허 : 0

초록 ▼

A special type of flange ring (201) for making bolted flanged joints between axially consecutive component parts of hollow fabrications, such as gas turbine aero engine casings (210). Each flange joint face (206) has, at its radially inner circumference, a radially extending sealing land or flat (216), the remainder of the flange joint face comprising, when in the unstressed condition, a frustoconical surface (209) inclined at a small angle (c°) to the radial plane (207) of the sealing flat (216). The frustoconical surface (209) is drawn into contact with a complementary joint surface (208) when the bolts (204) are tightened. The flange rear face (212) is parallel to the frustoconical surface (209). This configuration creates a joint having a large line reaction force along the sealing land (216), thereby providing efficient sealing against internal pressure even when tension forces in the casing (210) are present. Alternative embodiments are described.

대표청구항 ▼

A metallic flange ring for a fluid-tight metal-to-metal annular joint between axially consecutive component parts of a hollow fabrication, the flange ring having: (a) a flange joint face; (b) a flange rear face; (c) a hub portion for joining the flange ring to one of the component parts of the fabrication, the hub portion having a wall thickness which reduces from a maximum portion adjacent the flange rear face to a minimum which is substantially equal to a wall thickness of the component part; and (d) a plurality of angularly spaced-apart location features for the location of fastening means whereby the flange joint face can be drawn into sealing engagement with a confronting complementary joint face to form the fluid-tight annular joint; wherein the flange joint face in an as-manufactured unstressed condition has a radially disposed sealing flat which constitutes a portion of said joint face, a remainder of the flange joint face comprising a frustoconical surface inclined at an angle of c°to the radial direction and meeting the sealing flat at a corner with an included angle of 180°-c°where c°has a value of greater than 0°up to about 8°, the width and position of the sealing flat on the flange joint being such that manufacturing tolerances of the fabrication do not prevent sealing engagement with the complementary joint face, the flange rear face being parallel to the frustoconical surface, the stiffness of the flange ring being such as to allow at least the sealing flat to be drawn into contact with the complementary joint face by the fastening means with a force sufficient to generate a line reaction at the sealing flat sufficient to seal against a predetermined fluid pressure without overstraining the fastening means.

이 특허를 인용한 특허 (45) 인용/피인용 타임라인 분석

Lan T. Nguyen, Apparatus for reducing fastener bending stress in flanged connections.
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Nguyen Lan T. ; Walker Stephen J., Apparatus for reducing fastener bending stress in flanged connections.
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Beagen, Jr., Joseph William, Coupling gasket with multiple sealing surfaces.
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Schell, Ty; McCrea, Patrick M., Coupling with extending parting line.
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Schell, Ty; McCrea, Patrick M., Coupling with extending parting line.
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Beagen, Jr., Joseph William, Coupling with tongue and groove.
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Beagen, Jr., Joseph William, Coupling with tongue and groove.
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Gibb, John; Dole, Douglas R.; Pigott, Michael S., Deformable mechanical pipe coupling.
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Gibb,John; Dole,Douglas R.; Pigott,Michael S., Deformable mechanical pipe coupling.
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Gibb, John; Dole, Douglas R.; Pigott, Michael S, Deformable mechanical pipe coupling with shoulder pipe elements.
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Webjorn, Jan, Flanged member and a flange joint comprising flange members.
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Arase, Kenichi; Katou, Eigo; Takeuchi, Masato, Gas turbine and method for opening chamber of gas turbine.
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Lecuyer, Raymond Joseph; Dimmick, John Herbert; Haveri Murigeppa, Ashok Kumar; Liu, Gang, Gas turbine conical flange bolted joint.
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Rose, William M., Gas turbine engine case with replaced flange and method of repairing the same using cold metal transfer.
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Lienau,Wolfram; Meuter,Paul, High pressure rotary pump in a pot housing with a pressure cap.
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Svetlik,Harvey E., Hollowed, deformable, raised face bolt-ring.
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Chow, Wai Tuck; Ivanov, Oleg; Prihar, Ron I, Inner diameter scallop case flange for a case of a gas turbine engine.
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Care, Ian C. D., Joint assembly.
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Webjorn, Mats, Method for manufacturing a flanged element and a flanged element.
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Wobben, Aloys, Method for the production of a connection flange.
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Mansfield, Aaron C.; Mansfield, Jason A., Method of modifying an upper gearset of a marine stern drive.
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Gibb, John; Dole, Douglas R.; Pigott, Michael S., Method of securing pipe elements end to end.
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Porter, Michael V.; Haney, Craig; Madara, Scott D.; Dole, Douglas R.; Pierce, John W., Method of securing pipe elements in end to end relation.
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Howard, Erik M.; Madazhy, Rajeev, Pipe connection having a reverse hub.
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Jost, Harry, Seal for medium-conducting components.
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Vandal, Peter J.; Compton, Douglas C., Slip on groove coupling with multiple sealing gasket.
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Vandal, Peter Joseph; Compton, Douglas, Slip on groove coupling with multiple sealing gasket.
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Vandal, Peter Joseph; Compton, Douglas, Slip on groove coupling with multiple sealing gasket.
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Vandal, Peter Joseph; Compton, Douglas, Slip on groove coupling with multiple sealing gasket.
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Vandal, Peter Joseph; Compton, Douglas, Slip on groove coupling with multiple sealing gasket.
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Vandal, Peter Joseph; Compton, Douglas, Slip on groove coupling with multiple sealing gasket.
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Vandal, Peter Joseph; Compton, Douglas, Slip on groove coupling with multiple sealing gasket.
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Beagen, Jr., Joseph William, Slip-on coupling.
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Beagen, Jr., Joseph William, Slip-on coupling.
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Beagen, Jr., Joseph William, Slip-on coupling assembly.
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Beagen, Jr., Joseph William, Slip-on coupling gasket.
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Beagen, Jr., Joseph William, Slip-on coupling segment.
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Beagen, Jr., Joseph William, Slip-on gasket.
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Niday, David Andrew; Ryczek, Scott Patrick; McGovern, James Patrick; Liotta, Gary Charles; Busso, Gianni, Structural cover for gas turbine engine bolted flanges.
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Reuben, Jonathan C.; Socha, Pawel; Bulkovitch, Richard J., Thermally compliant fitting for high temperature tube applications.
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Otto, John R., Turbine gear assembly support having symmetrical removal features.
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Otto, John R., Turbine gear assembly support having symmetrical removal features.
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Otto, John R., Turbine gear assembly support having symmetrical removal features.
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Begin, Louis P.; Edwards, Brian J., Turbo charger compressor with integrated back plate and bearing housing.
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Mansfield,Aaron C.; Mansfield,Jason A., Upper gearset support for marine stern drive unit and method of modification.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Fluid-tight joint with inclined flange face 원문보기