Mechanical seal assembly

Patent · Tue Jan 01 00:00:00 EST 2002

OSTI ID:874604

Kotlyar, Oleg M ^[1]

---

1. Salt Lake City, UT

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 a 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.

• Research Organization: EG & G IDAHO INC
• DOE Contract Number: AC07-76ID01570
• Assignee: The United States of America as represented by the United States Department (Washington, DC)
• Patent Number(s): US 6422568
• OSTI ID: 874604
• Country of Publication: United States
• Language: English

Related Subjects

mechanical
seal
assembly
improved
provided
sealing
rotating
shafts
shaft
housings
subject
substantial
axial
vibrations
fixed
non-rotating
adjacent
close
contact
forming
annular
diode
element
applies
biasing
force
means
hemispherical
joint
alignment
rings
maintained
series
linear
bearings
positioned
axially
length
alternative
embodiments
hydraulic
amplification
components
amplifying
displacement
transfering
mechanical seal
rotating shaft
/277/