SU383931A1 - SEAL FOR CRUSHING CYLINDER VAPOR — PISTON - Google Patents
SEAL FOR CRUSHING CYLINDER VAPOR — PISTONInfo
- Publication number
- SU383931A1 SU383931A1 SU1646907A SU1646907A SU383931A1 SU 383931 A1 SU383931 A1 SU 383931A1 SU 1646907 A SU1646907 A SU 1646907A SU 1646907 A SU1646907 A SU 1646907A SU 383931 A1 SU383931 A1 SU 383931A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- piston
- seal
- ring
- cuff
- cylinder
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Sealing Devices (AREA)
Description
Изобретение относитс к уплотнени м трущихс пар цилиндр - поршень холодильногазовых машин, работающих, например, по замкнутому циклу Стирлинга.The invention relates to cylinder-to-piston pairs of refrigeration-gas machines operating, for example, in a Stirling closed cycle.
Известны уплотнени трущейс пары цилиндр - поршень, содержащие размещенные в пазу поршн кольцо и установленную между кольцом и цилиндром манжету из материала с малым коэффициентом трени .Known cylinder-piston gaskets are known, containing a ring placed in the piston groove and a cuff made of a material with a low coefficient of friction between the ring and the cylinder.
Цель изобретени - повышение эксплуатационной Н1адежности уплотнени .The purpose of the invention is to increase the operational reliability of the seal.
Цель достигаетс тем, что кольцо выполнено из материала, увеличивающего свои размеры при понижении температуры, например, ситалла. Кольцо в месте контакта с манжетой имеет М-образный профиль.The goal is achieved by the fact that the ring is made of a material that increases in size with decreasing temperature, for example, a sitalall. The ring at the point of contact with the cuff has an M-shaped profile.
На фиг. 1 показана схема холодильно-газовой машины с уплотнением трущейс пары цилиндр - порщень; на фиг. 2 - уплотнение.FIG. 1 shows a diagram of a refrigeration gas machine with a seal of a cylinder-praschen rubbing pair; in fig. 2 - seal.
В цллиндре / установлен перемещающийс дифференциальный поршень-вытеснитель 2, имеюший ступень 3 н вторую 4 ступени со встроенным в каждую регенератором. В пазу поршн 4 второй ступени размещено кольцо 5, между кольцом 5 и цилиндром / установлева манжета 6. Кольцо 5 в месте контакта с манжетой 6 имеет М-образный профиль. Кольцо 5 может быть выполнено из двух половин с замком или цельным, при выполнении поршн составным. Манжета 6 также Имеет ступенчатый замок 7.A moving differential piston propellant 2 is installed in the cylinder / has a stage 3 and a second 4 stages with a regenerator integrated into each. In the groove of the piston 4 of the second stage is placed a ring 5, between the ring 5 and the cylinder / set cuff 6. The ring 5 at the point of contact with the cuff 6 has an M-shaped profile. Ring 5 can be made of two halves with a lock or solid, when making the piston compound. The cuff 6 also has a stepped lock 7.
При работе холодильно-газовой машины, вследствие цонижени температуры диаметр поршн 4 второй ступени уменьшаетс , а зазор между поршнем 4 и цилиндром 1 увеличиваетс . Кольцо 5 при понижении температуры увеличивает свои размеры и, разжима .манжету 6, уменьшает образовавшийс зазор. Выполненные под определенным углом конические кольцевые выступы М-образного профил манжеты 6 и кольца 5 обеспечивают герметичность места их соединени . Радиальна толщина манжеты 6 незначительна по сравнению с толщиной кольца 5, что позвол ет компенсировать тепловое сужение манжеты 6.During operation of the refrigeration gas machine, due to the temperature decrease in temperature, the diameter of the second-stage piston 4 decreases, and the gap between the piston 4 and cylinder 1 increases. Ring 5 increases in size when the temperature is lowered and, expanding the ring 6, reduces the gap. The conical annular protrusions of the M-shaped profile of the cuff 6 and the rings 5, which are made at a certain angle, ensure the tightness of their connection. The radial thickness of the cuff 6 is insignificant compared with the thickness of the ring 5, which makes it possible to compensate for the thermal constriction of the cuff 6.
Предмет изобретени Subject invention
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1646907A SU383931A1 (en) | 1971-04-12 | 1971-04-12 | SEAL FOR CRUSHING CYLINDER VAPOR — PISTON |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1646907A SU383931A1 (en) | 1971-04-12 | 1971-04-12 | SEAL FOR CRUSHING CYLINDER VAPOR — PISTON |
Publications (1)
Publication Number | Publication Date |
---|---|
SU383931A1 true SU383931A1 (en) | 1973-05-23 |
Family
ID=20472451
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1646907A SU383931A1 (en) | 1971-04-12 | 1971-04-12 | SEAL FOR CRUSHING CYLINDER VAPOR — PISTON |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU383931A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110425279A (en) * | 2019-08-06 | 2019-11-08 | 北京卫星环境工程研究所 | Secondary seal ring structure for high-power two-stage G-M refrigeration machine |
-
1971
- 1971-04-12 SU SU1646907A patent/SU383931A1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110425279A (en) * | 2019-08-06 | 2019-11-08 | 北京卫星环境工程研究所 | Secondary seal ring structure for high-power two-stage G-M refrigeration machine |
CN110425279B (en) * | 2019-08-06 | 2021-04-27 | 北京卫星环境工程研究所 | Secondary sealing ring structure for high-power two-stage G-M refrigerator |
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