Floating seal system for rotary devices

Patent · Sat Jan 01 00:00:00 EST 1983

OSTI ID:864674

Banasiuk, Hubert A ^[1]

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1. Chicago, IL

This invention relates to a floating seal system for rotary devices to reduce gas leakage around the rotary device in a duct and across the face of the rotary device to an adjacent duct. The peripheral seal bodies are made of resilient material having a generally U-shaped cross section wherein one of the legs is secured to a support member and the other of the legs forms a contacting seal against the rotary device. The legs of the peripheral seal form an extended angle of intersection of about 10.degree. to about 30.degree. in the unloaded condition to provide even sealing forces around the periphery of the rotary device. The peripheral seal extends around the periphery of the support member except where intersected by radial seals which reduce gas leakage across the face of the rotary device and between adjacent duct portions. The radial seal assembly is fabricated from channel bars, the smaller channel bar being secured to the divider of the support member and a larger inverted rigid floating channel bar having its legs freely movable over the legs of the smaller channel bar forming therewith a tubular channel. A resilient flexible tube is positioned within the tubular channel for substantially its full length to reduce gas leakage across the tubular channel. A spacer extends beyond the face of the floating channel near each end of the floating channel a distance to provide desired clearance between the floating channel and the face of the rotary device.

• Research Organization: Gas Technology Institute, Des Plaines, IL (United States)
• DOE Contract Number: AC03-77CS34495
• Assignee: Institute of Gas Technology (Chicago, IL)
• Patent Number(s): US 4399863
• OSTI ID: 864674
• Country of Publication: United States
• Language: English

Related Subjects

floating
seal
rotary
devices
relates
reduce
gas
leakage
device
duct
adjacent
peripheral
bodies
resilient
material
u-shaped
section
legs
secured
support
forms
contacting
form
extended
angle
intersection
10
degree
30
unloaded
condition
provide
sealing
forces
periphery
extends
intersected
radial
seals
portions
assembly
fabricated
channel
bars
bar
divider
larger
inverted
rigid
freely
movable
forming
therewith
tubular
flexible
tube
positioned
substantially
length
spacer
near
distance
desired
clearance
rotary device
gas leakage
seal assembly
tubular channel
peripheral seal
flexible tube
floating seal
rotary devices
resilient material
gas leak
seal form
/165/62/277/