JPS6449770A - Mechanical seal - Google Patents

Mechanical seal

Info

Publication number
JPS6449770A
JPS6449770A JP62207013A JP20701387A JPS6449770A JP S6449770 A JPS6449770 A JP S6449770A JP 62207013 A JP62207013 A JP 62207013A JP 20701387 A JP20701387 A JP 20701387A JP S6449770 A JPS6449770 A JP S6449770A
Authority
JP
Japan
Prior art keywords
face
sealed end
sealed
spiral grooves
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.)
Pending
Application number
JP62207013A
Other languages
Japanese (ja)
Inventor
Kazuo Kashiwamura
Yoshio Furuishi
Takuya Suganami
Yoshio Kazumoto
Hiroyuki Kato
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62207013A priority Critical patent/JPS6449770A/en
Publication of JPS6449770A publication Critical patent/JPS6449770A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
    • F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Sealing (AREA)

Abstract

PURPOSE:To enable a long-time use by forming spiral grooves of which the inner end parts are opened while the outer end parts are closed on at least either of the sealed end faces of a seat ring and a driven ring, and providing lubricating grooves on the outer periphery side of the sealed end face on which the spiral grooves are not formed. CONSTITUTION:Spiral grooves 23 are formed on the inner periphery 22 side of the sealed end face 18 of a driven ring 2. The spiral grooves 23 are inclined rearward in the relatively moving direction of the sealed end face and their outer end parts are closed while the inner end parts being opened on the inner periphery side. Due to the spiral grooves 23 provided on the sealed end face 18, a pressure in the radial direction which can oppose to a leaking flow can be effectively generated utilizing the relative rotation of the sealed end face 18, with respect to a sealed fluid 14 existing in the minute gap of the sealed end face 18. Furthermore, a nearly completely sealing fluid film can be formed on the sealed end face 18 due to arc-shaped lubricating grooves 24 provided on the sealed end face on the outer end part side on which the spiral grooves 23 are not formed. Thereby, the captioned seal can stand a long-time use under a severe condition while suppressing the leakage of the sealed fluid 14 to be vary small.
JP62207013A 1987-08-20 1987-08-20 Mechanical seal Pending JPS6449770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62207013A JPS6449770A (en) 1987-08-20 1987-08-20 Mechanical seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62207013A JPS6449770A (en) 1987-08-20 1987-08-20 Mechanical seal

Publications (1)

Publication Number Publication Date
JPS6449770A true JPS6449770A (en) 1989-02-27

Family

ID=16532749

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62207013A Pending JPS6449770A (en) 1987-08-20 1987-08-20 Mechanical seal

Country Status (1)

Country Link
JP (1) JPS6449770A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103791097A (en) * 2014-02-28 2014-05-14 江苏大学 Combination fluid dynamic pressure groove mechanical seal ring capable of automatically discharging particles
WO2014148317A1 (en) * 2013-03-17 2014-09-25 イーグル工業株式会社 Sliding part
JP2018138796A (en) * 2017-02-24 2018-09-06 株式会社クボタ mechanical seal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53126462A (en) * 1977-04-12 1978-11-04 Taiho Kogyo Co Ltd Mechanical seal

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53126462A (en) * 1977-04-12 1978-11-04 Taiho Kogyo Co Ltd Mechanical seal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014148317A1 (en) * 2013-03-17 2014-09-25 イーグル工業株式会社 Sliding part
US9353867B2 (en) 2013-03-17 2016-05-31 Eagle Industry Co., Ltd. Sliding parts
JPWO2014148317A1 (en) * 2013-03-17 2017-02-16 イーグル工業株式会社 Sliding parts
CN103791097A (en) * 2014-02-28 2014-05-14 江苏大学 Combination fluid dynamic pressure groove mechanical seal ring capable of automatically discharging particles
JP2018138796A (en) * 2017-02-24 2018-09-06 株式会社クボタ mechanical seal

Similar Documents

Publication Publication Date Title
CA2093151A1 (en) Face seal with double spiral grooves
GB1170008A (en) Floating Ring Seal for a Shaft
KR950019319A (en) Double seal
GB1387009A (en) Rotary shaft seals
FR2503310A1 (en) ANNULAR LARGE DIAMETER SEAL AND USE THEREOF
ES265070U (en) Shaft seal with multi-slitted sleeve
JPS6449771A (en) Mechanical seal
JPS6022227B2 (en) Mechanical seal for heat cooling
EP0084255A3 (en) Drive axle assembly
AU532980B2 (en) Cryogenic valve seal
JPS6449770A (en) Mechanical seal
GB1094515A (en) Oil seal
US4482158A (en) Stern tube seal device
ES8206798A1 (en) Face seal system.
CA2021157A1 (en) Tandem mounted face seals
US3125347A (en) Relatively rotatable face seal with flexible backing member
IE39027B1 (en) Sealing rings
JPS5779363A (en) Mechanical seal
JPS55129663A (en) Mechanical seal
FR2362318A1 (en) Rotary shaft end face seal - has annular mating faces with controlled lubrication fluid flow between
JP2513675Y2 (en) Non-contact seal
SE8201301L (en) HOGTRYCKSVETSKELAGER
ETSION et al. Modified face seal for positive film stiffness[Patent]
JPS5496652A (en) No contact type shaft sealing device
SU1590782A1 (en) End seal