[특허]Mechanical seal with banded ring

[미국특허] Mechanical seal with banded ring 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16J-015/34
출원번호	UP-0759043 (2007-06-06)
등록번호	US-7857319 (2011-02-24)
발명자 / 주소	Steigerwald, Thomas Kalodimos, Michael Volden, Douglas
출원인 / 주소	John Crane Inc.
대리인 / 주소	Leydig, Voit & Mayer, Ltd.
인용정보	피인용 횟수 : 1 인용 특허 : 28

초록 ▼

A mechanical end face seal with a pair of annular relatively rotating seal face defining seal rings. An annular compression contact ring disposed in surrounding relation to one of the seal rings includes a plurality of pads at asymmetrical locations in interference contact with the outer cylindrical

대표청구항 ▼

The invention claimed is: 1. A mechanical end face seal assembly to provide a fluid tight seal between a housing and a relatively rotatable shaft comprising: a pair of annular seal rings surrounding the shaft each including an annular generally planar sealing face disposed in fluid tight sealing relation to the annular generally planar sealing face of the other of said rings, one of said rings being associated with the housing in fluid tight sealing relation, the other of said rings being associated with said shaft in fluid tight relation, one of said rings being axially moveable and biased toward the other of said rings, said axially moveable ring including a radially outer cylindrical surface, and a compression contact ring surrounding said radially outer cylindrical surface having a plurality of arcuate contact surfaces in compressive contact with said radially outer cylindrical surface of said axially moveable seal ring at asymmetrical locations about said seal ring. 2. A mechanical end face seal as claimed in claim 1 wherein said compression contact ring includes an inner cylindrical surface having a diameter larger than the radially outer cylindrical surface of said axially moveable ring, and further includes a plurality of radially inwardly directed pads asymmetrically spaced about said inner cylindrical surface of said compression contact ring each said pad having an inner arcuate contact surface in arcuate compressive contact with said radially outer cylindrical surface of said axially moveable seal ring. 3. A mechanical end face seal assembly as claimed in claim 2 wherein said arcuate surfaces are formed on a diameter that is smaller than the radially outer cylindrical surface of said axially moveable seal ring and wherein each said pad is bisected by a radial centerline and said inner arcuate contact surface of said pad extends for at least fifteen degrees (15°) on either side of said centerline. 4. A mechanical end face seal as claimed in claim 3 wherein the centerlines of at least two such pads are disposed about sixty degrees (60°) apart. 5. A mechanical end face seal as claimed in claim 3 wherein the centerlines of at least two such pads are disposed about eighty degrees (80°) apart. 6. A mechanical end face seal as claimed in claim 3 wherein the centerlines of at least two such pads are disposed about one hundred degrees (100°) apart. 7. A mechanical end face seal as claimed in claim 2 wherein said compression contact ring includes at least four such pads, and each such pad is bisected by a radial centerline and the centerlines of each such pad are disposed at different angular distances from adjacent pads. 8. A mechanical end face seal as claimed in claim 3 wherein said compression contact ring includes at least four such pads wherein each such pad is bisected by a radial centerline and the centerlines of each such pad are disposed at different angular distances from adjacent pads. 9. A mechanical end face seal as claimed in any one of claims 1 to 8 wherein said axially moveable seal ring includes radially directed annular abutment surface and said compression contact ring includes an annular face in abutting contact therewith. 10. A mechanical end face seal as claimed in claim 9 wherein said compression contact ring has an axial length that is less than the distance between said radially directed annular abutment surface and said generally planar annular sealing face of said axially moveable ring. 11. A mechanical end face seal as claimed in claim 2 wherein said pads comprise separate inserts, slidably received in said ring and adjustable relative thereto. 12. A mechanical end face seal as claimed in claim 11 wherein said compression contact ring includes a plurality of asymmetrically disposed pockets and said inserts are disposed in said pockets. 13. A mechanical end face seal as claimed in claim 12 wherein a set screw is supported at each said pocket by said compression ring and said set screws are adjustable relative to said ring to adjust said inserts. 14. A mechanical end face seal assembly as claimed in claim 11 wherein said each insert includes an arcuate contact surface in compressive contact with said radially outer cylindrical surface of said axially moveable seal ring, said arcuate surfaces are formed on a diameter that is smaller than the radially outer cylindrical surface of said axially moveable seal ring.

이 특허에 인용된 특허 (28) 인용/피인용 타임라인 분석

Bair John J. (Union Lake MI) Bantz Edward J. (Grafton WI) Damon Gerald D. (Farmington MI), Bearing isolator.
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Cope, Steven A.; Kennard, Jeffrey L.; Lamontia, Mark A., Bearing mount system for reducing vibration.
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Avard Louis H. (Lawton MI) Mason Harry L. (Kalamazoo MI), Bellows seal with vibration damper.
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Demendi Joseph F. (Crystal Lake IL) Malle Philippe R. (Ormoy-Villers FRX) Le Neve Yannick A. (Amiens FRX) Chen Xin (Crystal Lake IL) Clemens William R. (Carpentersville IL), Carbon composite mateiral for tribological applications.
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Masaki,Kiyoshi; Mihara,Kazuhiro; Yoshida,Shuichi; Naka,Teruyuki; Fukuyama,Sachio; Urayama,Noriaki; Kikugawa,Masaaki; Maruoka,Makoto; Obayashi,Shinichiro, Disk drive apparatus having particular clamping device.
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Drumm Kevin R. (Hamilton CAX), Externally-mounted, stationary-design, self-aligning rotary face seal.
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Kuzdzal Mark J. (Allegany NY) Miller Harry F. (Allegany NY), Hanging spring supported squeeze film damping system for shaft bearing.
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Marsi Joseph A. (Rancho Palos Verdes CA) Wiese Winfred J. (Whittier CA) Takumi Lawrence I. (Carson CA) Boster Clark S. (Whittier CA) Vaghasia Gordhan K. (Cerritos CA) Ellison Jerel E. (Downey CA) Col, Mechanical seal.
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Hufford Larry A. (Vista CA), Mechanical seal assembly.
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Takahashi, Hidekazu, Mechanical seal device.
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Carmody Christopher J. (Conisbrough GB2) Rea Christopher J. (Moorgate GB2), Mechanical seals.
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Bjornson, Carl C., Mechanical split seal.
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Bjornson, Carl C., Mechanical split seal.
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Bjornson, Carl C., Mechanical split seal.
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Engel, David J., Mixer seal and bearing apparatus and method.
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Sekiguchi Shinichi (Zama JPX) Kusukawa Hirotaka (Nogaya JPX) Tobita Kenichi (Zama JPX), Multiple-disc clutch type electronically controlled differential limiting device with a torsional damper for each driver.
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Smith, Bevan V., Noise-reducing machine component.
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Warner Dale J. (Palm Harbor FL), Omni-directional articulated mounting assembly for shaft seals.
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Ulrich Donald Charles, Radial lip shaft seal.
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Mullaney John J. (Warwick RI), Rotary bellows seal with vibration-damping means.
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Ice Kevin F. ; Holt Robert S., Self piloting seal head assembly.
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Johnson Norman E. (Barrington RI) Vasconcellos Daniel F. (East Greenwich RI), Self-damping bellows seal assembly.
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Warner Dale J. (Palos Heights IL), Shaft seal.
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Bras Johan C. M. (Tricht NLX) Tummers Edwin H. (Ede NLX) Van Ballegooy Syme D. (Ijsselstein NLX) Peek Hubertus L. M. (Hilversum NLX) Tadic Vedran A. (Culemborg NLX) Verburgh Martin B. (Amersfoort NLX, Shaft seal arrangement for water pump.
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Marshall Dale Fred, Shaft support structure for turbomachine.
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Suckow David S. (Decatur IL), Shaft vibration damper.
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Kuusela Juhani (Petjvesi FIX) Lopperi Esko (JyvskylFIX) Lummila Markku (JyvskylFIX) Saksala Pertti (Muurame FIX) Salovaara Esa (Keuruu FIX) Suhonen Tuomo (JyvskylFIX) PerttinHarri (JyvskylFIX) Poikol, Slide-ring seal.
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Garrett Keith C. (Shipley GB2) ..AP: AES Engineering Limited (South Yorkshire GB2 03), Stationary assembly for mechanical shaft seal.
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이 특허를 인용한 특허 (1) 인용/피인용 타임라인 분석

Takahashi, Hidekazu, Mechanical seal.
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A	생활필수품
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Mechanical seal with banded ring 원문보기