A shaft seal serves to reduce leakage between a rotating shaft and a static shell. The shaft seal includes a plurality of compliant plate members, each having a root and a tip. The compliant plate members are secured to the static shell at their root in facing relation. The tips of the compliant pla
A shaft seal serves to reduce leakage between a rotating shaft and a static shell. The shaft seal includes a plurality of compliant plate members, each having a root and a tip. The compliant plate members are secured to the static shell at their root in facing relation. The tips of the compliant plate members define a sealing ring between the static shell and the rotating shaft. An axial flow resistance member is disposed within the compliant plate members and serves as a barrier to axial leakage flow between the compliant plate members.
대표청구항▼
What is claimed is: 1. A shaft seal for reducing leakage between a rotating shaft and a static shell, the shaft seal comprising: a plurality of compliant plate members attached in facing relation to the static shell, the compliant plate members defining a sealing ring between the static shell and t
What is claimed is: 1. A shaft seal for reducing leakage between a rotating shaft and a static shell, the shaft seal comprising: a plurality of compliant plate members attached in facing relation to the static shell, the compliant plate members defining a sealing ring between the static shell and the rotating shaft, wherein each of the compliant plate members comprises at least one slot therein; and at least one static ring attached to the static shell and extending radially into the at least one slot in the compliant plate members, each of the at least one static ring extending circumferentially through and between a plurality of the compliant plate members such that the at least one static ring serves as a baffler to at least some axial leakage flow between the compliant plate members, wherein each of the compliant plate members comprises multiple slots therein, wherein the shaft seal further comprises corresponding multiple static rings attached to the static shell and extending radially into each of the slots, respectively, wherein at least one of a radial length and an axial width of the multiple slots varies, and wherein at least one of a radial length and an axial width of the multiple static rings varies corresponding to the slot radial lengths and axial widths, respectively. 2. A shaft seal according to claim 1, wherein the compliant plate members are attached to the static shell via a housing. 3. A shaft seal according to claim 2, wherein the at least one static ring is integrated with the housing. 4. A shaft seal according to claim 1, wherein the compliant plate members are rectangular shaped. 5. A shaft seal according to claim 1, wherein the compliant plate members are T-shaped. 6. A shaft seal according to claim 1, wherein the compliant plate members are trapezoid shaped. 7. A shaft seal for reducing leakage between a rotating shaft and a static shell, the shaft seal comprising: a plurality of compliant plate members, each having a root and a tip, the compliant plate members being secured at their root in facing relation to the static shell, wherein the tips of the compliant plate members are arranged circumferentially about the rotating shaft; and an axial flow resistance member disposed within the compliant plate members, wherein at least one section of the axial flow resistance member is disposed within and circumferentially between a plurality of the compliant plate members such that the axial flow resistance member serves as a barrier to at least some axial leakage flow between the compliant plate members, wherein the compliant plate members are shaped such that the compliant plate member roots are packed more loosely than the compliant plate member tips, wherein the axial flow resistance member mimics a labyrinth seal near the compliant plate member roots, wherein each of the compliant plate members comprises a plurality of slots therein adjacent the compliant plate member roots defining a corresponding plurality of circumferential slots in the sealing ring, wherein the axial flow resistance member comprises a plurality of static rings disposed in the circumferential slots, wherein adjacent ones of the circumferential slots comprise different radial lengths, and wherein the static rings extend radially into the circumferential slots. 8. A shaft seal according to claim 7, wherein the static rings extend radially into the circumferential slots from the static shell. 9. A shaft seal according to claim 7, wherein the compliant plate members are attached to the static shell via a housing. 10. A shaft seal according to claim 9, wherein the axial flow resistance member is integrated with the housing. 11. A shaft seal for reducing leakage between a rotating shaft and a static shell, the shaft seal comprising: a plurality of compliant plate members, each having a root and a tip, the compliant plate members being secured at their root in facing relation to the static shell, wherein the tips of the compliant plate members are arranged circumferentially about the rotating shaft and an axial flow resistance member disposed within the compliant plate members, wherein at least one section of the axial flow resistance member is disposed within and circumferentially between a plurality of the compliant plate members such that the axial flow resistance member serves as a barrier to at least some axial leakage flow between the compliant plate members, wherein the compliant plate members are shaped such that the compliant plate member roots are packed more loosely than the compliant plate member tips, wherein the axial flow resistance member mimics a labyrinth seal near the compliant plate member roots, wherein each of the compliant plate members comprises a plurality of slots therein adjacent the compliant plate member roots defining a corresponding plurality of circumferential slots in the sealing ring, wherein the axial flow resistance member comprises a plurality of static rings disposed in the circumferential slots, wherein at least one of a radial length and an axial width of the plurality of slots varies, and wherein at least one of a radial length and an axial width of the plurality of static rings varies corresponding to the slot radial lengths and axial widths, respectively. 12. A shaft seal for reducing leakage between a rotor and a stator in turbomachinery, the shaft seal comprising: a plurality of compliant plate members attached in facing relation to the stator, the compliant plate members defining a sealing ring between the stator and the rotor, wherein each of the compliant plate members comprises a plurality of varying length slots therein; and a corresponding plurality of static rings attached to the stator and extending radially into the plurality of slots in the compliant plate members, respectively, the plurality of static rings having varying radial lengths corresponding to the varying length slots, wherein each of the static rings extends circumferentially between aligned slots of adjacent compliant plate members such that the static rings serve as a baffler to at least some axial leakage flow between the compliant plate members.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (21)
Flower Ralph F. J. (Bath GB2), Brush seal with asymmetrical elements.
Skinner David Robert ; Bagepalli Bharat S. ; Cromer Robert Harold ; Dinc Osman Saim,TKX ; Turnquist Norman Arnold ; Wolfe Christopher Edward, Combined brush seal and labyrinth seal segment for rotary machines.
Skinner David Robert ; Bagepalli Bharat S. ; Cromer Robert Harold ; Dine Osman Saim,TRX ; Turnquist Norman Arnold ; Wolfe Christopher Edward, Combined brush seal and labyrinth seal segment for rotary machines.
Bagepalli Bharat S. (Schenectady NY) Cromer Robert H. (Gloversville NY) Dinc Osman S. (Troy NY) Maynard James (Clifton Park NY), Woven seal and hybrid cloth-brush seals for turbine applications.
Rao, Ajay Keshava; Deo, Hrishikesh Vishvas; Gedam, Hemant Vinayak; Pandey, Vishwas Kumar, Compliant plate seal for use with rotating machines and methods of assembling a rotating machine.
Deo, Hrishikesh Vishvas; Turnquist, Norman Arnold; Baily, Frederick George; Couture, Jr., Bernard Arthur; Feeny, Sean Douglas; Adis, William Edward; Awtar, Shorya, Compliant plate seal with an annular ring for turbomachinery and methods of assembling the same.
O'Brien, Michael, Fluid transfer seal assemblies, fluid transfer systems, and methods for transferring process fluid between stationary and rotating components using the same.
Adis, William Edward; Couture, Jr., Bernard Arthur; Deo, Hrishikesh Vishvas; Feeny, Sean Douglas; Mack, Michael Dennis; Purdy, Daniel Frederick; Turnquist, Norman Arnold, Method of manufacture of compliant plate seals.
Mack, Michael Dennis; Adis, William Edward; Deo, Hrishikesh Vishvas; Purdy, Daniel Frederick; Turnquist, Norman Arnold, Method of manufacturing of a compliant plate seal assembly.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.