JPS54117854A - Mechanical seal - Google Patents

Mechanical seal

Info

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
Application number
JP2413878A
Other languages
Japanese (ja)
Other versions
JPS5756625B2 (en
Inventor
Akira Takenaka
Tatsuhiko Fukuoka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Industries Corp
Taiho Kogyo Co Ltd
Original Assignee
Taiho Kogyo Co Ltd
Toyoda Automatic Loom Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Taiho Kogyo Co Ltd, Toyoda Automatic Loom Works Ltd filed Critical Taiho Kogyo Co Ltd
Priority to JP2413878A priority Critical patent/JPS54117854A/en
Publication of JPS54117854A publication Critical patent/JPS54117854A/en
Priority to US06/366,811 priority patent/US4423879A/en
Priority to US06/366,809 priority patent/US4415168A/en
Priority to US06/366,810 priority patent/US4407513A/en
Publication of JPS5756625B2 publication Critical patent/JPS5756625B2/ja
Priority to US06/642,733 priority patent/US5538260A/en
Priority to US07/894,930 priority patent/US5312117A/en
Granted legal-status Critical Current

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
JP2413878A 1977-04-12 1978-03-03 Mechanical seal Granted JPS54117854A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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