Split seal for shafts

Seal for engine oil pan Title: Seal arrangement two surf&al

t” provide a seal along

rims that meet at an angle

Patenr “umber:

US5934686

Date: IO* August 1999 Inventor:

Orrenschlsgcr,

Assignee:

MTU

-

J

Moturen-

““d

Shaft seal with metal diaphragm

Turbinen-

Union F&&h&fen The lubricating “II inside a motor vehicle rnginr collecrs along rhr horrom “f a” ml pan which is sealed m rhe cngrne and detached

Title:

for scwxing.

flange in ““e put vcrtiral

of rhe engine

flange in another

and ““w

a

parr. This crcateb L

c”r”rr where nil leaks ~a” ULCUT. With rhn sral arrangemenr, “il pa” has specially-shaped

rbe flange of the gruwr,

hbchanical

seal

with

fletiblr

mcral

diaphragm

‘l’hc ml pa” may 1u.w m seaI ““co a hooz”“ral

Patent number:

US594i479

Date: 71h September

1999

Inventor:

M H

Ostrw&i,

Assignee: John Crane Inc

inw which

a CO”~II”“IIS seal can be located. Figure I &ws sled

a” “d pa” 1 whxh

““co horiulnral

flange

LS co be

L1 and vcrr~al

flange 12. Sal 2 tit, into gmaves 6 and 7 in rhe oil pan flange

faces rogether.

Thesr

bellows ale difkulr

m

manufacrure.

In operario”

rhe spring

tends t” var): when rhere is awl

force

m”veme”t

L”

the shaft or when rhe seal faces rrart ra wear. Alw, the spring force a”

bc ~~ccssive, and rhia

reduces thr life “f the Cal_

Figure Rnranng supporr

2 shaws

rhc grneral

ring

iestb “1, sy”rher,c

I8

arrangement. rubber

24, and in is held in meral sleeve 50

which is fixed ““m rhe rhafr. Dtaphragm &cd

m searing

77. and

sutionary

rmg

xs spring 30

10 is a&o”

pushes

rbr

rotalng

ring. Sims 32 and 33 allow liquid t”

rcacb cpace 35 and t” conduit

hat

again~r

the

away from

rhr nw ring,.

Split seal for shafts Tide: Split mechanical

face seal a”d method

of

assembly thereof Patent number: Date: 5’h October Inventor:

US5961122 1999

Marri, J A

Assignee: Flowserve Management A splir shati seal c”“siw be sqxrared

and I&d

Company

of nv” halves which can from &c shak, w chat rhc

,320

rhe seal housing tit togerher using screws 3‘12 b&s 340. To ens~ ire

Materials wed

which ICXW inro rhteaded

giaphite

char they kir accurately, oar half has a shap cd spigot 354 and wo dowel Pins 338 which kit into rhc other half of rhe hawng.

ca rbon

The seal IS cieared by mraring Parr 56 slidi “g Part 376. The srarionary Parr is

over x&nary

held against the mtatmg Part using springs 3)33 and ring 302. King 375 is used ro locate che assembled unit onto rhe shafr.

i

for rhe

sealing

faces are:

01 cemmic for rhe roraring part 56, and for rhc stationary

pan 376.

iydraulic lifts in Aldings de: Fluid seal deice with reinforced dYnamic lip ifent number:

US5951022

ate: 14& September ventor~: German, signee: German

n modern

I999 G W, Corms,,

Company

types of bh

H W

Inc

rhe cylinder

must


it more

difficult

co avoid

tvement. Because rhe diamerer ies aiong

its length,

jerky

of the pisron

reals mut

be rigbr

,ugh m Prevent leakage, bur they must alkxv oath movement. The seal in this parenr ong Piston

and

is able 10 deal wikh

it operates

well ac low

.cds.

Sealrag Technology No. 73