SU1483133A1 - Slot-type seal for high-temperature machine space - Google Patents
Slot-type seal for high-temperature machine space Download PDFInfo
- Publication number
- SU1483133A1 SU1483133A1 SU874315554A SU4315554A SU1483133A1 SU 1483133 A1 SU1483133 A1 SU 1483133A1 SU 874315554 A SU874315554 A SU 874315554A SU 4315554 A SU4315554 A SU 4315554A SU 1483133 A1 SU1483133 A1 SU 1483133A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sealing element
- gap
- radial
- slot
- seal
- Prior art date
Links
Landscapes
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Изобретение относитс к щелевым уплотнени м, в частности к уплотнени м валов высокотемпературных полостей машин. Целью изобретени вл етс повышение надежности и снижение утечек путем поддержани радиального зазора рабочей щели на заданной величине. Щелевое уплотнение вала 1 содержит уплотнительный элемент 2 в корпусе 3, при этом вал 1 и элемент 2 образуют между собой рабочую щель 4. Уплотнительный элемент 2 снабжен теплоизол ционным покрытием 5, в элементе 2 выполнены тепловые трубы 6, сообщенные с полостью 7 высокой температуры, а также охлаждающие каналы, сообщенные с коробом 9 и патрубком 10 подвода охлаждающего воздуха. Каналы через радиальные отверсти и жиклеры сообщены с рабочей щелью 4. При изменени х температуры деталей уплотнени происходит изменение радиального зазора щели 4. Уменьшение зазора будет вызывать уменьшение расхода охлаждающего воздуха через уплотнительный элемент 2 и, как следствие этого, увеличение его температуры и увеличение радиальных размеров. Увеличение радиального зазора будет приводить к противоположным результатам. 2 з.п. ф-лы, 4 ил.The invention relates to slotted seals, in particular, to seals of shafts of high-temperature cavities of machines. The aim of the invention is to increase reliability and reduce leakage by maintaining the radial clearance of the working gap at a predetermined value. The slotted seal of the shaft 1 contains a sealing element 2 in the housing 3, while the shaft 1 and the element 2 form an operating gap 4 between them. The sealing element 2 is provided with a heat insulating coating 5, the heat pipes 6 in the element 2 communicated with the high-temperature cavity 7, and cooling channels communicated with the duct 9 and the nozzle 10 for supplying cooling air. The channels through the radial holes and jets communicate with the working slot 4. When the temperature of the seal parts changes, the radial clearance of the slot 4 changes. A decrease in the gap will cause a decrease in cooling air flow through the sealing element 2 and, consequently, an increase in its temperature and an increase in radial dimensions . Increasing the radial clearance will lead to opposite results. 2 hp f-ly, 4 ill.
Description
10ten
№No
ХХ АА/УЧАлУУТхх/ХХХХXX AA / UCHALUUTHH / XXXX
а и NIa and ni
5-55-5
8 88 8
S f S f / / / / I il/S f S f / / / / I il /
5five
11eleven
3-63-6
Фиг.ЗFig.Z
1515
Фиг. VFIG. V
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874315554A SU1483133A1 (en) | 1987-10-14 | 1987-10-14 | Slot-type seal for high-temperature machine space |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874315554A SU1483133A1 (en) | 1987-10-14 | 1987-10-14 | Slot-type seal for high-temperature machine space |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1483133A1 true SU1483133A1 (en) | 1989-05-30 |
Family
ID=21331433
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU874315554A SU1483133A1 (en) | 1987-10-14 | 1987-10-14 | Slot-type seal for high-temperature machine space |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1483133A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103244680A (en) * | 2013-05-23 | 2013-08-14 | 张家港市三利密封合金材料有限公司 | Alloy sealing ring |
-
1987
- 1987-10-14 SU SU874315554A patent/SU1483133A1/en active
Non-Patent Citations (1)
Title |
---|
Патент US № 3603599, кл. 277-53, 1971. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103244680A (en) * | 2013-05-23 | 2013-08-14 | 张家港市三利密封合金材料有限公司 | Alloy sealing ring |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5222742A (en) | Seal arrangement | |
US3527053A (en) | Gas turbine engine with improved gas seal | |
US4425079A (en) | Air sealing for turbomachines | |
US4573867A (en) | Housing for turbomachine rotors | |
US6171052B1 (en) | Cooling of a honeycomb seal in the part of a gas turbine to which hot gas is admitted | |
US4541775A (en) | Clearance control in turbine seals | |
GB1199974A (en) | Turbine Blade Seal Assembly | |
US6068443A (en) | Gas turbine tip shroud blade cavity | |
JP2000193095A (en) | Axial brush seal for gas turbine engine and gas turbine engine | |
GB1484951A (en) | Cooling system for a gas turbine engine | |
GB1484288A (en) | Gas turbine engines | |
GB1484936A (en) | Gas turbine engines | |
KR920002912A (en) | Gas Turbine Rotor Assembly and Its Operation Method | |
US3893786A (en) | Air cooled shroud for a gas turbine engine | |
GB1461965A (en) | Axial flow turbine structure | |
ES404588A1 (en) | Multi-casing turbine | |
US2543615A (en) | Gas seal for rotating shafts | |
FR2316440A1 (en) | Gas turbine inlet duct wall cooling system - has outer passageways supplied with cool air from compressor | |
US2333053A (en) | High temperature elastic fluid turbine | |
US3304054A (en) | Housing for a gas or steam turbine | |
US2788951A (en) | Cooling of turbine rotors | |
SU1483133A1 (en) | Slot-type seal for high-temperature machine space | |
JP3631898B2 (en) | Cooling structure of split ring in gas turbine | |
US5074111A (en) | Seal plate with concentrate annular segments for a gas turbine engine | |
US5017088A (en) | Gas turbine engine compressor casing with internal diameter control |