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MULTI-DIRECTION DEFLECTION LIMITERS FOR SOFT BEARING SUPPORT HOUSING

IP.com Disclosure Number: IPCOM000239681D
Publication Date: 2014-Nov-24
Document File: 4 page(s) / 853K

Publishing Venue

The IP.com Prior Art Database

Abstract

Multi-direction deflection limiters for main shaft soft bearing support housings are described herein.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 58% of the total text.

Page 01 of 4

N LIMITE

OUSING

ing main sha

rotor vibrat

ble effects s

ferentially-

support high

rovide addi

soft bearing

g support ho

n example o

g (the defle

fining an in

shaft is loc tially centra

central axis

the load is d

e main shaft

RS FOR SO

aft is subject

ions can pro

uch as addi

-spaced soft

load event

tional suppo

support hou

usings are u

of a known d

ction limite

ner soft bea

ated within t

l axis. At hi

. The main s

istributed to

will return

FT BEARI

t to rotor vib

pagate to ot

tional wear

bearings is s caused by rt to the sof

sing to surr

sed to limit

deflection li rs are circle

aring housing

the inner cir

gh load eve

haft engage

o the soft be

to the substa

NG SUPPO

rations and her compon

and loosenin

included in the rotation

t bearings a

ound the sof

the stress o miter
d in the enla

support an cumference nts, the main

s the deflect

aring suppo

ntially cent

RT

ents g the
s of nd
t

of

rged d an of

ion rt ral

BACKGR

In

other uni

of the tur

compone

turbine e the main the main

bearings.

D

high load

configura

view). Th

outer sof

the soft b

shaft can

limiters w

housing. axis.

MULTI-DI

OUND

turbine eng

ntended load

bine engine nt connectio

ngine surrou

shaft and th

shaft, the tu

eflection lim

events on t

tion in a sof

e deflection

t bearing sup

earing supp

be disrupted

ithin the lo

When the lo

RECTION D

ines, a high


s. From the

s and can ca

ns. A plural

nding the m

e unintended

rbine engine

iters for the

he main sha

t bearing su

limiters cre

port housin

ort housing

from the su

ad path and ad event is EFLECTIO H

-speed rotat

main shaft,

use undesira

ity of circum

ain shaft to

loads. To p

includes a

soft bearin

ft. Fig. 1 is a

pport housin

ate a gap de


g. The main

on a substan

bstantially a portion of

removed, th


Page 02 of 4

H

The defle

will only

the load p

distribute

risk of fa

in torsion

DESCRI

M

owever, the

ction limite

engage defl

ath of a rad

d load will ilure. In add

al loads, a r

PTION

ulti-directio

herein.

ig. 2 is an ex

ve of the mu

in green. Th

ect to the so

known defl

rs define a s

ection limit ial load, an be greater at

ition, the de

otational for

n deflection

ample emb lti-direction

e example d

ft bearing h

ection limite

traight, hori

ers within th

outward for

the engaged

flection lim

ce.

limiters for

odiment of t

al deflectio eflection lim

ousing supp

r configura

zontal gap. T

e load path ce. Fewer en

  deflection iter configur

main shaft

he multi-dir n limiter wit

iter defines

ort.

tion of Fig. The straight

and not the gaged defle

limiters wh ation of Fig

soft bearing

ection defle

h the soft be

a gap that i

1 is limited

deflection l

deflection li

ction limite

ich can lead

. 1 does not

support hou

ction limiter

aring suppo

s arcuate an

in its advant

imiter desig

miters paral

rs means the

to an increa

securely en

sings are


s. Fig. 3 is a

rt housing d at an incli

ages. n
lel to

sed gage

described

    F perspecti

depicted with resp

side

ne

2


Page 03 of 4

T

path. In t

of the gap

friction f

in compa

In

limiters t

deflection

load, eac

limite...