JPS57184761A - Oil seal - Google Patents

Oil seal

Info

Publication number
JPS57184761A
JPS57184761A JP56067826A JP6782681A JPS57184761A JP S57184761 A JPS57184761 A JP S57184761A JP 56067826 A JP56067826 A JP 56067826A JP 6782681 A JP6782681 A JP 6782681A JP S57184761 A JPS57184761 A JP S57184761A
Authority
JP
Japan
Prior art keywords
corner side
protrusions
recesses
sealing
rubber
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
JP56067826A
Other languages
Japanese (ja)
Inventor
Akira Washida
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP56067826A priority Critical patent/JPS57184761A/en
Publication of JPS57184761A publication Critical patent/JPS57184761A/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
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3244—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with hydrodynamic pumping action

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Sealing With Elastic Sealing Lips (AREA)

Abstract

PURPOSE:To maintain high sealing properties for a long period of time by a method wherein protrusions and recesses, provided at the sealing corner side, are provided on the whole surface of the sealing corner side substantially, not only at the proximity of a meeting section, to orient the particles of rubber or a rubber-like elastic high-polymer substance into the axial direction substantially. CONSTITUTION:A seal lip 3 is constituted by baking the rubber 2 to a reinforcing ring 1. The meeting section 4 of the sealing corner side A and an oil surface corner side B is forming a circle and a multitude of protrusions and recesses 5 are provided in substantially axial direction of the sealing corner side A. The rear part of the protrusions and recesses 5 is so provided that it covers the whole surface of the sealing corner side A substantially. When a shaft is rotated, the front rims and the vicinity of the protrusions and recesses are bent into the rotating direction of the shaft to constitute a helical viscosity pump and prevent the sealed fluid at the oil surface corner side B from leaking to the outside thereof.
JP56067826A 1981-05-06 1981-05-06 Oil seal Pending JPS57184761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56067826A JPS57184761A (en) 1981-05-06 1981-05-06 Oil seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56067826A JPS57184761A (en) 1981-05-06 1981-05-06 Oil seal

Publications (1)

Publication Number Publication Date
JPS57184761A true JPS57184761A (en) 1982-11-13

Family

ID=13356133

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56067826A Pending JPS57184761A (en) 1981-05-06 1981-05-06 Oil seal

Country Status (1)

Country Link
JP (1) JPS57184761A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100442505B1 (en) * 2002-01-24 2004-07-30 주식회사 에어젠 Drain apparatus of compression tank

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100442505B1 (en) * 2002-01-24 2004-07-30 주식회사 에어젠 Drain apparatus of compression tank

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