[특허]Conformal wear-resistant seal

Conformal wear-resistant seal 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16J-015/32 F16J-015/34
출원번호	US-0969396 (2013-08-16)
등록번호	US-9169929 (2015-10-27)
발명자 / 주소	Kellar, Franz W. Crowder, Jr., Harold Lloyd Duquette, Scott M.
출원인 / 주소	Little Engine, LLC
대리인 / 주소	Trego, Hines & Ladenheim, PLLC
인용정보	피인용 횟수 : 0 인용 특허 : 34

초록 ▼

A seal apparatus includes: (a) first and second machine elements defining a sealing interface between two zones subject to different fluid pressures, a boundary of which lies between the two elements; (b) a seal comprising rigid material carried by the first machine element and having an annular lip defining a first contact surface; (c) a second contact surface comprising rigid material, defined by the second machine element; (c) wherein both contact surfaces are wear resistant, and the first and second contact surfaces bear directly against each other, so as to seal against fluid leakage between the first and second zones, while allowing relative sliding motion between the first and second contact surfaces; and (d) wherein the seal is configured to allow the lip to deform elastically and permit the first contact surface to conform in a regular or irregular shape to the second contact surface.

대표청구항 ▼

1. A seal apparatus, comprising: (a) first and second machine elements cooperatively defining a sealing interface between two zones which are subject in use to different fluid pressures, a boundary of which lies between the two elements;(b) a seal of monolithic rigid metal or ceramic material carried by the first machine element, the seal having a body rigidly connected to the first machine element and an annular lip extending away from the body and defining a first contact surface, the seal configured so as to permit bending deflection of the lip towards the first machine element;(c) a second contact surface comprising a rigid metal or ceramic material, defined by the second machine element;(d) wherein both contact surfaces are wear resistant, and wherein the first and second contact surfaces bear directly against each other along a continuous closed perimeter, so as to seal against fluid leakage between the first and second zones, while allowing relative sliding motion between the first and second contact surfaces;(e) wherein the seal is shaped and sized so as to allow the lip to deform elastically and permit the first contact surface to conform in an irregular shape to the second contact surface along a contact band;(f) wherein a selected one of the first and second contact surfaces has a wear-resistant coating disposed thereon; and(g) wherein the first and second contact surfaces are configured to produce an asymptotic wear characteristic in the contact band when in use. 2. The apparatus of claim 1, wherein the seal is integral to the first member. 3. The apparatus of claim 1 wherein the first member includes a hole through which the second member passes, the first contact surface is concave, and the second contact surface is convex. 4. The apparatus of claim 1 wherein the second contact surface is a flat plane. 5. The apparatus of claim 1 wherein the seal is annular and has a scalloped shape. 6. The apparatus of claim 1 wherein the lip has an open, curved cross-sectional shape. 7. The apparatus of claim 1 wherein the lip has a closed, curved cross-sectional shape. 8. The apparatus of claim 1, where the seal is sized so as to permit elastic deflection of the seal while limiting stresses in the seal to less than the endurance limit of the material, when a predetermined load is applied to the apparatus. 9. The apparatus of claim 1 wherein the annular lip is configured so as to clamp the first contact surface against the second contact surface in response to fluid pressure in the first zone. 10. The apparatus of claim 1 where the lip is configured to produce a varying area contact region between the first and second contact surfaces in response to changes in mechanical and/or fluid pressure acting on the apparatus. 11. The apparatus of claim 1 where the lip is configured to define a contact region between the first and second contact surfaces, such that a midline of the contact region remains stationary in response to changes in mechanical and/or fluid pressure on the apparatus. 12. The apparatus of claim 1 where the lip is configured so as to block pressure loads on the seal from acting against sealing forces acting on the lip. 13. The apparatus of claim 1 wherein the first member includes a concave seat which incorporates the seal, and the second contact surface defined by the second member is convex. 14. The apparatus of claim 1 wherein the seal is made from a material more rigid than both elastomers and polymers. 15. The apparatus of claim 1 wherein two or more seals are provided, each seal carried by one of the machine elements and contacting the contact surface of the other machine element.

이 특허에 인용된 특허 (34)

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Sloan ; Jr. ; Paul H., Filler neck cap with O-ring seal.
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van Schoor, Marthinus; Ludlow, Christopher C.; Klepper, Steven A.; Cutler, Andrew M., Fluid activated shaft seal.
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van Schoor, Marthinus; Gilbert, David; Cutler, Andrew; Klepper, Steven, Fluid-activated shaft seal.
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Antonini Joseph (Chicago IL) Walinski Edward L. (Elgin IL), Lip seal assembly for a rotatable shaft.
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Bertin ; Jacques, Lip sealing ring for a shaft.
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Salant Richard F. (Dunwoody GA), Mechanical seal with compliant face.
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Janoff, Dwight D.; Vicic, John C.; Glidden, Gregory L.; Crawford, Neil C., Metal-to-metal seal with soft metal insert.
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Janoff, Dwight D.; Vicic, John C.; Glidden, Gregory L.; Crawford, Neil C., Metal-to-metal sealing system.
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Pickering Len (London CAX) Lepine Gilles (London CAX) Burnett Gord (London CAX), Method of manufacturing a joint for connecting a spigot to the bell of a pipe or coupling.
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Grasseschi John J. (1299 Grafton St. Worcester MA 01609), Plumbing sealing system.
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Smith Robert M. (Dayton OH), Polytetrafluoroethylene lip seal.
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Petrak Gregory H. (Lakewood CO), Rotary facial seal and bearing assembly.
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Johnston David E., Seal design with bi-directional pumping.
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Kieffer Robert A. (118 Meadowview La. Williamsville NY 14221), Seal for relatively rotatable parts.
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Bram Georges Eugene (Pont-A-Mousson FR), Sealed joint having a socket.
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Saitoh Takayuki (Fukushima JPX), Sealing apparatus.
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Moore Vincent (Mercer Island WA), Sealing apparatus with sealing device operable under pressure differential established thereacross.
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Visconti Alberto,ITX, Sealing assembly for a rotary shaft, in particular of an automotive engine water pump.
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Stenlund Stig (Saltsjbaden SEX), Sealing device.
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Laulhe Ren (Oloron Sainte Marie FRX) Garrigues Jean-Claude (Ogeu les Bains FRX), Sealing device providing the upstream/downstream sealing of a valve.
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Conroy William T. ; Dietle Lannie L. ; Gobeli Jeffrey D. ; Kalsi Manmohan S., Skew resisting hydrodynamic seal.
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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

내보내기 구분	파일저장 인쇄 메일전송
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Conformal wear-resistant seal 원문보기

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Conformal wear-resistant seal 원문보기

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