Mechanical face seal housing with spring wall
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0262313
(2005-10-28)
|
등록번호 |
US-8714557
(2014-05-06)
|
발명자
/ 주소 |
- Miller, Jonathan L.
- Hilldoerfer, Michael George
|
출원인 / 주소 |
- United Technologies Corporation
|
대리인 / 주소 |
Carlson, Gaskey & Olds P.C.
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
10 |
초록
▼
A mechanical face seal housing includes an annular seal-receiving section, a seal force transfer section that extends axially from the annular-seal receiving section, and an annular contact section axially spaced from the seal-receiving section. An annular spring between the contact section and a su
A mechanical face seal housing includes an annular seal-receiving section, a seal force transfer section that extends axially from the annular-seal receiving section, and an annular contact section axially spaced from the seal-receiving section. An annular spring between the contact section and a support wall provides a bias force against the contact section. The contact section transfers the bias force to the seal-receiving section to provide a sealing force between a graphitic carbon ring and a rotatable seal surface.
대표청구항
▼
1. A gas turbine engine mechanical face seal housing comprising: an annular seal-receiving section defining a center axis, the annular seal-receiving section including an annular flange that extends in a radially outward direction toward a free end relative to the center axis;a force transfer sectio
1. A gas turbine engine mechanical face seal housing comprising: an annular seal-receiving section defining a center axis, the annular seal-receiving section including an annular flange that extends in a radially outward direction toward a free end relative to the center axis;a force transfer section that extends axially from the annular seal-receiving section;a contact section axially spaced from the annular seal-receiving section for receiving a bias force and transferring the bias force to the force transfer section, wherein the force transfer section is moveable relative to an axis of a gas turbine engine in response to the bias force; andan annular carbon seal mounted in the annular seal-receiving section facing away from the contact section. 2. The gas turbine engine mechanical face seal housing as recited in claim 1, including an annular space between the annular seal-receiving section and the contact section. 3. The gas turbine engine mechanical face seal housing as recited in claim 1, wherein the contact section extends in a radial direction from said force transfer section. 4. The gas turbine engine mechanical face seal housing as recited in claim 1, wherein the contact section is cantilevered from the force transfer section. 5. The gas turbine engine mechanical face seal housing as recited in claim 1, wherein the contact section includes a wear-resistant layer. 6. The gas turbine engine mechanical face seal housing as recited in claim 5, wherein the wear resistant layer is a hard coating having a first hardness, and the contact section has a second hardness that is less than the first hardness. 7. The gas turbine engine mechanical face seal housing as recited in claim 1, wherein the force transfer section includes a seal surface that faces in a radially inward direction relative the center axis. 8. The gas turbine engine mechanical face seal housing as recited in claim 1, wherein the annular flange includes guide slots there through. 9. The gas turbine engine mechanical face seal housing as recited in claim 1, wherein the seal-receiving section, force transfer section, and contact section form a U-shaped cross-sectional profile. 10. The gas turbine engine mechanical face seal housing as recited in claim 1, wherein the contact section is a spring wall having a spring face for receiving the bias force. 11. The gas turbine engine mechanical face seal housing as recited in claim 1, wherein the force transfer section includes a hard coating. 12. The gas turbine engine mechanical face seal housing as recited in claim 11, wherein the hard coating is disposed on a radially inner surface of the force transfer section relative to the center axis. 13. The gas turbine engine mechanical face seal housing as recited in claim 1, wherein the face seal housing is configured to axially translate relative to the axis of the gas turbine engine. 14. The gas turbine engine mechanical face seal housing as recited in claim 1, wherein the force transfer section is moveable relative to a guide member supporting the gas turbine engine mechanical face seal housing. 15. The gas turbine engine mechanical face seal housing as recited in claim 1, wherein the force transfer section moves relative to the axis of the gas turbine engine in response to the bias force. 16. A gas turbine engine mechanical face seal arrangement comprising: a support;a plurality of guide members secured to the support;a seal member slidably received onto the plurality of guide members to establish a direction of seal member movement, the seal member including an annular seal-receiving section defining a center axis, the annular seal-receiving section including an annular flange that extends in a radially outward direction toward a free end relative to the center axis, a force transfer section that extends axially from the annular seal-receiving section, a contact section axially spaced from the seal-receiving section for receiving a bias force and transferring the bias force to the force transfer section, wherein the force transfer section is moveable relative to an axis of a gas turbine engine in response to the bias force, the contact section including a wear resistant coating adjacent an annular bias member, and an annular carbon seal mounted in the annular seal-receiving section facing away from the contact section; andan annular bias member comprising a ring located between the support and contact section of the seal member. 17. The gas turbine engine mechanical face seal arrangement as recited in claim 16, wherein at least one of the plurality of guide members includes a stop for resisting movement of the seal member along the direction of seal movement. 18. The gas turbine engine mechanical face seal arrangement as recited in claim 16, wherein the seal member includes an annular seal mounted therein. 19. The gas turbine engine mechanical face seal arrangement as recited in claim 18, including a rotatable seal surface adjacent the annular seal. 20. The gas turbine engine mechanical face seal arrangement as recited in claim 16, wherein the ring is non-coiled. 21. The gas turbine engine mechanical face seal arrangement as recited in claim 16, wherein the wear resistant coating is a hard coating having a first hardness, and the contact section has a second hardness that is less than the first hardness. 22. The gas turbine engine mechanical face seal arrangement as recited in claim 16, wherein the annular bias member is axially aligned with the annular carbon seal. 23. The gas turbine engine mechanical face seal arrangement as recited in claim 16, wherein the seal member is configured to axially translate relative to the axis of the gas turbine engine. 24. The gas turbine engine mechanical face seal arrangement as recited in claim 16, wherein the force transfer section is moveable relative to a guide member supporting the gas turbine engine mechanical face seal housing.
이 특허에 인용된 특허 (10)
-
Slayton Richard M. (South Windsor CT), Anti-weepage valve for rotating seals.
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Williams Christopher C. (Lake Worth FL), Brush seal.
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Clark Eugene V. (19801 Gresham Northridge CA 91324) Sievers George K. (1605 W. Magnolia Blvd. Burbank CA 91506), Face seal with long-wearing sealing surface.
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Pope Adam N. (Cincinnati OH), Gas bearing sealing means.
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Ullah M. Rifat (Phoenix AZ), Oil film cooled face seal.
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Davis Joseph (Vernon CT) Sidat Donald D. (Willimantic CT), Oil weepage return for carbon seal plates.
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Shaffer Harold K. (Tolland CT) Barnsby Roger M. (Manchester CT), Rotating shaft seal.
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Olson Eric G. (Hartford CT), Seal assembly for a rotary machine.
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Hoffelner Herbert (Roehrmoos DEX), Sliding ring seal.
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Frank Rdiger (Gerlingen DEX), Vane pump with spring sealing elements against the vane faces.
이 특허를 인용한 특허 (2)
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Grogg, Gary L., Annular spring for a bearing assembly of a gas turbine engine.
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Tsutsumi, Eiichi; Arase, Kenichi, Assembling method of seal structure of rotary machine.
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