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Title: Mechanical seal with textured sidewall

Abstract

The present invention discloses a mating ring, a primary ring, and associated mechanical seal having superior heat transfer and wear characteristics. According to an exemplary embodiment of the present invention, one or more dimples are formed onto the cylindrical outer surface of a mating ring sidewall and/or a primary ring sidewall. A stationary mating ring for a mechanical seal assembly is disclosed. Such a mating ring comprises an annular body having a central axis and a sealing face, wherein a plurality of dimples are formed into the outer circumferential surface of the annular body such that the exposed circumferential surface area of the annular body is increased. The texture added to the sidewall of the mating ring yields superior heat transfer and wear characteristics.

Inventors:
;
Publication Date:
Research Org.:
Board of Supervisors of Louisiana State University and Agricultural and Mechanical College, Baton Rouge, LA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1343761
Patent Number(s):
9,568,106
Application Number:
13/102,299
Assignee:
Board of Supervisors of Louisiana State University and Agricultural and Mechanical College DRO
DOE Contract Number:
FG48-02R810707
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 May 06
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 36 MATERIALS SCIENCE

Citation Formats

Khonsari, Michael M., and Xiao, Nian. Mechanical seal with textured sidewall. United States: N. p., 2017. Web.
Khonsari, Michael M., & Xiao, Nian. Mechanical seal with textured sidewall. United States.
Khonsari, Michael M., and Xiao, Nian. Tue . "Mechanical seal with textured sidewall". United States. doi:. https://www.osti.gov/servlets/purl/1343761.
@article{osti_1343761,
title = {Mechanical seal with textured sidewall},
author = {Khonsari, Michael M. and Xiao, Nian},
abstractNote = {The present invention discloses a mating ring, a primary ring, and associated mechanical seal having superior heat transfer and wear characteristics. According to an exemplary embodiment of the present invention, one or more dimples are formed onto the cylindrical outer surface of a mating ring sidewall and/or a primary ring sidewall. A stationary mating ring for a mechanical seal assembly is disclosed. Such a mating ring comprises an annular body having a central axis and a sealing face, wherein a plurality of dimples are formed into the outer circumferential surface of the annular body such that the exposed circumferential surface area of the annular body is increased. The texture added to the sidewall of the mating ring yields superior heat transfer and wear characteristics.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Feb 14 00:00:00 EST 2017},
month = {Tue Feb 14 00:00:00 EST 2017}
}

Patent:

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  • A seal ring assembly for use in an end face mechanical shaft seal is described comprising: an annular ring casing having a substantially annular end face formed therein with a substantially annular groove; and a seal ring partly received in the groove and secured to the ring casing by an adhesive. The seal ring being formed by segments each having a substantially accurate cross-section, substantially cylindrical radially inner and outer surfaces, axial end faces and side faces. The segments being disposed in the annular groove with one of the end faces of each segment received in the groove and themore » other end face being offset from the end face of the ring casing axially outwardly thereof. The segments being arranged in circumferentially side-by-side abutting relationship with each other to form the seal ring. The other end faces of respective segments being included in substantially the same plane to provide a substantially smooth and circumferentially substantially continuous sealing surface.« less
  • An improved mechanical seal assembly is provided for sealing rotating shafts with respect to their shaft housings, wherein the rotating shafts are subject to substantial axial vibrations. The mechanical seal assembly generally includes a rotating sealing ring fixed to the shaft, a non-rotating sealing ring adjacent to and in close contact with the rotating sealing ring for forming an annular seal about the shaft, and a mechanical diode element that applies a biasing force to the non-rotating sealing ring by means of hemispherical joint. The alignment of the mechanical diode with respect to the sealing rings is maintained by amore » series of linear bearings positioned axially along a desired length of the mechanical diode. Alternative embodiments include mechanical or hydraulic amplification components for amplifying axial displacement of the non-rotating sealing ring and transferring it to the mechanical diode.« less
  • An improved mechanical seal assembly is provided for sealing rotating shafts with respect to their shaft housings, wherein the rotating shafts are subject to substantial axial vibrations. The mechanical seal assembly generally includes a rotating sealing ring fixed to the shaft, a non-rotating sealing ring adjacent to and in close contact with the rotating sealing ring for forming an annular seal about the shaft, and a mechanical diode element that applies a biasing force to the non-rotating sealing ring by means of hemispherical joint. The alignment of the mechanical diode with respect to the sealing rings is maintained by amore » series of linear bearings positioned axially along a desired length of the mechanical diode. Alternative embodiments include mechanical or hydraulic amplification components for amplifying axial displacement of the non-rotating sealing ring and transferring it to the mechanical diode.« less
  • An improved mechanical seal assembly is provided for sealing rotating shafts with respect to their shaft housings, wherein the rotating shafts are subject to substantial axial vibrations. The mechanical seal assembly generally includes a rotating sealing ring fixed to the shaft, a non-rotating sealing ring adjacent to and in close contact with the rotating sealing ring for forming an annular seal about the shaft, and a mechanical diode element that applies a biasing force to the non-rotating sealing ring by means of hemispherical joint. The alignment of the mechanical diode with respect to the sealing rings is maintained by amore » series of linear bearings positioned axially along a desired length of the mechanical diode. Alternative embodiments include mechanical or hydraulic amplification components for amplifying axial displacement of the non-rotating sealing ring and transfering it to the mechanical diode.« less