JPS57190165A - Mechanical seal - Google Patents

Mechanical seal

Info

Publication number
JPS57190165A
JPS57190165A JP7403281A JP7403281A JPS57190165A JP S57190165 A JPS57190165 A JP S57190165A JP 7403281 A JP7403281 A JP 7403281A JP 7403281 A JP7403281 A JP 7403281A JP S57190165 A JPS57190165 A JP S57190165A
Authority
JP
Japan
Prior art keywords
chamber
subsealed
sealing
main
sealed chamber
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
JP7403281A
Other languages
Japanese (ja)
Other versions
JPS6222028B2 (en
Inventor
Akihiro Kawaguchi
Kanji Oba
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.)
NIHON PIRAA KOGYO KK
Nippon Pillar Packing Co Ltd
Mitsubishi Heavy Industries Ltd
Original Assignee
NIHON PIRAA KOGYO KK
Nippon Pillar Packing Co Ltd
Mitsubishi Heavy Industries 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 NIHON PIRAA KOGYO KK, Nippon Pillar Packing Co Ltd, Mitsubishi Heavy Industries Ltd filed Critical NIHON PIRAA KOGYO KK
Priority to JP7403281A priority Critical patent/JPS57190165A/en
Publication of JPS57190165A publication Critical patent/JPS57190165A/en
Publication of JPS6222028B2 publication Critical patent/JPS6222028B2/ja
Granted 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
    • F16J15/3492—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member with monitoring or measuring means associated with the seal

Landscapes

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

Abstract

PURPOSE:To decrease a load applied to sealing end faces of a seal and spread a range of its limit use, by providing a subsealed chamber independently of a main sealed chamber at the back side of one of the sealing rings and arranging internal pressure of said subsealed chamber lower than sealed fluid pressure in the main sealed chamber by a prescribed level. CONSTITUTION:A main sealed chamber 18 is formed appearing to sealing end faces 4a, 5a in a seal housing 1, and a sealed liquid flow passage 19, communicated to the main sealed chamber 18, is formed in the seal housing 1. While a subsealed chamber 20 is formed independently of the main sealed chamber 18 appearing at the back side of a stationary sealing ring 4, of both sealing rings 4, 5, by a fixed member 7, sealing retainer 6 and O-rings 9, 21. Then the subsealed chamber 20 is controlled so that its internal pressure may be lower than pressure of sealed liquid in the main sealed chamber 18 through a pressure adjusting liquid passage 22 formed in the housing 1 and the fixed member 7.
JP7403281A 1981-05-14 1981-05-14 Mechanical seal Granted JPS57190165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7403281A JPS57190165A (en) 1981-05-14 1981-05-14 Mechanical seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7403281A JPS57190165A (en) 1981-05-14 1981-05-14 Mechanical seal

Publications (2)

Publication Number Publication Date
JPS57190165A true JPS57190165A (en) 1982-11-22
JPS6222028B2 JPS6222028B2 (en) 1987-05-15

Family

ID=13535397

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7403281A Granted JPS57190165A (en) 1981-05-14 1981-05-14 Mechanical seal

Country Status (1)

Country Link
JP (1) JPS57190165A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102991657A (en) * 2012-12-11 2013-03-27 山东省科学院海洋仪器仪表研究所 Underwater internal pressure compensation miniature dynamic seal rotation device and underwater monitoring equipment
CN104373375A (en) * 2014-10-30 2015-02-25 江苏海天泵阀制造有限公司 Axially adjustable corrugated diaphragm type sealing assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102991657A (en) * 2012-12-11 2013-03-27 山东省科学院海洋仪器仪表研究所 Underwater internal pressure compensation miniature dynamic seal rotation device and underwater monitoring equipment
CN104373375A (en) * 2014-10-30 2015-02-25 江苏海天泵阀制造有限公司 Axially adjustable corrugated diaphragm type sealing assembly

Also Published As

Publication number Publication date
JPS6222028B2 (en) 1987-05-15

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