JPS54117854A - Mechanical seal - Google Patents
Mechanical sealInfo
- Publication number
- JPS54117854A JPS54117854A JP2413878A JP2413878A JPS54117854A JP S54117854 A JPS54117854 A JP S54117854A JP 2413878 A JP2413878 A JP 2413878A JP 2413878 A JP2413878 A JP 2413878A JP S54117854 A JPS54117854 A JP S54117854A
- Authority
- JP
- Japan
- Prior art keywords
- ring
- peripheral side
- contacting surface
- sliding contacting
- grooves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
PURPOSE: To improve the sealing effect of a mechanical seal at stopping time by projecting the outer peripheral side of the sliding contacting surface without fine grooves slightly axially from the inner peripheral side thereof to enhance the surface pressure of the outer peripheral side thereof.
CONSTITUTION: Short fine grooves 15 are formed on the sliding contacting portion of a driven ring 10 of a mechanical seal. The outer peripheral side of the sliding contacting surface of the ring 10 is projected slightly axially from the inner peripheral side in contact with a seal ring 9 as an outer higher surface. Thus, the contacting surface pressure of the sliding contacting surface of the driven ring 10 with the ring 9 is higher at the inner periphery than the outer periphery without the grooves 15. Accordingly, it can remarkably reduce the leaked flow of oil from the outer periphery of the sliding contacting surface of the ring 10 toward the grooves 15 at stopping time of the ring 10 so as to enhance the sealing effect of the seal at stopping time.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2413878A JPS54117854A (en) | 1978-03-03 | 1978-03-03 | Mechanical seal |
US06/366,811 US4423879A (en) | 1977-04-12 | 1982-04-08 | Mechanical seal |
US06/366,809 US4415168A (en) | 1977-04-12 | 1982-04-08 | Mechanical seal |
US06/366,810 US4407513A (en) | 1977-04-12 | 1982-04-08 | Mechanical seal |
US06/642,733 US5538260A (en) | 1977-04-12 | 1984-08-20 | Mechanical seal |
US07/894,930 US5312117A (en) | 1977-04-12 | 1992-06-08 | Mechanical seal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2413878A JPS54117854A (en) | 1978-03-03 | 1978-03-03 | Mechanical seal |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53127015A Division JPS6015827B2 (en) | 1978-10-16 | 1978-10-16 | mechanical seal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54117854A true JPS54117854A (en) | 1979-09-12 |
JPS5756625B2 JPS5756625B2 (en) | 1982-11-30 |
Family
ID=12129949
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2413878A Granted JPS54117854A (en) | 1977-04-12 | 1978-03-03 | Mechanical seal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54117854A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6182177U (en) * | 1984-11-06 | 1986-05-31 | ||
US4733873A (en) * | 1984-09-25 | 1988-03-29 | Taiho Kogyo Co., Ltd. | Mechanical seal |
US4746268A (en) * | 1987-07-29 | 1988-05-24 | Hitachi, Ltd. | End face mechanical shaft seal for use in hydraulic machines and seal ring assembly for use in the shaft seal |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS521358A (en) * | 1975-06-18 | 1977-01-07 | Danfoss As | Press ring with slide seal and method of making same |
-
1978
- 1978-03-03 JP JP2413878A patent/JPS54117854A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS521358A (en) * | 1975-06-18 | 1977-01-07 | Danfoss As | Press ring with slide seal and method of making same |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4733873A (en) * | 1984-09-25 | 1988-03-29 | Taiho Kogyo Co., Ltd. | Mechanical seal |
JPS6182177U (en) * | 1984-11-06 | 1986-05-31 | ||
US4746268A (en) * | 1987-07-29 | 1988-05-24 | Hitachi, Ltd. | End face mechanical shaft seal for use in hydraulic machines and seal ring assembly for use in the shaft seal |
Also Published As
Publication number | Publication date |
---|---|
JPS5756625B2 (en) | 1982-11-30 |
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