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Патент USA US2131928

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“ » ¿ ocr. 4, 193s.
2,131,928
` w. A. ABEGG
SLUSH `PUMP VALVE AND‘THE LIKE
‘
Y
`
Filed sept. 30, 1955
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A
IIIIII
INVENTOR
AîïoR/VEY
'
`
I'
f ` Patented
.f
lÉSÍP'ATß-EN'T"QF‘FICE'Í ^ è “
Walter n. Ariege; Los A?geiesQoaiifLfass'ignöé' ‘of "
L "fone-nali" tofjr‘ßaldwìn‘ Reinhold,Angeles,
’Aliplicationseptenxber
'
“(¿rolaiiit '(ói.
3b, 25141271
`Serial No.l`42,85'l
' " " ` `
center passageway Il is‘formed through the'
is‘ïiìnvention relates to valvesi'for‘slush pumpsV p` large
valve seat‘bushing I2L`§This passageway is repre
` Aand `fthe like Tandis i a . continuationin part ofl §my i i sented‘bya straight bore, the upper opened end of
i patent entitled'i‘ii‘llalve for slush. pumps and ‘the j "f_which terminates in a ‘spheroidal seating surface
" i
`Í
like?. No.amasivigrantedMay 11,1937. i
I4` struck `from a lcenter lgenerally indicated» by 4.5
` 5f; ‘i structures
¿In the -1 operation».
o_fï likecharacter-ity
of-»slush . _pumps
isdesirable
¿and ‘that
" other.>
a ' the `dotted radius linea in Fig. 1'. ' The upper face
of` the valve seat I2 isinia plane'atrig‘ht angles ~
e. „ valve be providedwhich‘ willhandle ’heavy fluids to the longitudinal axis ofthe bor'efl 3` Aand prefer
i r_often rofabrasive character< and ‘which will» with
ably is `.formed with a'ffiat'face I5. ' `A«»valve`fd,is'k
1. „standä pressure `of .these `fluids and `their abrasive 2011s provided to assume a `seated positionfupon `10
" ‘19" actionyïtv‘is` also desirable toprovidelthese valves Vthe
spheroidal‘seatingïface I4. Thls‘disk has van ila `structure insuring that the 'valve will' always ‘ - over-all diameter' agreeingiwith the ldiameter of e
¿ fcorne‘to its seat after-ï‘having been raised to thus
the upper terminating edge ofthe seating lface>|4.
. .1. . `‘forrrrari
eiïe‘ctive seal-andthatthe valve will oper
"
Itsvunderface 2I§ is spheroidal‘and‘represents a
i ate ina simple `manner-without «the-,use> offco‘m
segment cfa sphere, theI radiusïofw'hich is indi- 215
if’. plicated‘parts.` `‘It is the principal> oli’jectßoi` the> " cated
by the dotted line ain Figlil sothata down-`
`to provide a slush >
`present invention; therefore,
_
ywardly protruding convex surface A‘will be“ pro- '
pump valve which is simple in character; decided , vided `toconform to and seat upon the seating face
1- ly rugged in construction ’and Üwill‘insure that al I4. It will thusbe‘ evident that the faces I4 and
l .maximum sealing actlon‘willzbe obtained and that 1 ,2i
.
when' properly ground `togetherwill form a
the „valve will readily“ aline itself .and assume a
`proper sealing position‘upontitsfseat _ when‘pres
,
",¿sure is` relieved from beneath
it. 1» ‘
‘ Athe
‘ ‘i
contemplates
i
`
tight seat and seal irrespective ofthe fact that the»
valve disk` might rotate laterally with relation rto
.p1-0- i ~ itsseat. «Above the plane of largest diameter of
the valve diskan‘upwardly protruding portion 22
» ‘The present invention
i _vision ofY a valve seat upon" which a valve element
t
loccurs.;
Thecircumferentialedge> of this portion
‘35
Í` ¿mountedso
`of idesired L L‘that‘it
character
may
Y,and
be `lifteclifrom
structure isits
:I freely
:seat ‘.tapers .upwardly and‘inwardly as indicated atf23',
. „ i easily, may' thereafter -aline itself properly land, as
‘ ` g„sume_a sealing position uponitsseat.l
l thetop, faceof lthe disk beingtlat."Y The valve‘disk
is; preferablymade of a' suitable, high-grade steel
and is ground to fitthe seatingface I4. Mounted
‘ The invention is illustrated by‘iwayo‘f example ' upon the upwardly protrudingiport'ion` 22 of the '
3Q inthe accompanying drawing inwhich: .S i
` disk 20‘ isa non-metallic packing disk 24, prefer- i
. I.¿„Fig.« ligis a‘iview in transverse section‘îon the ably constructed ofl rubber, or other suitable ma
A
¿line I+I- through `.the»valveistructure as shown
, teriaLj
‘
‘
The bottom face` ef` the packing disk 24 is
, Fig. 2 is` aïview in plan showing -the‘valve struc
»iormed with >avcenter circular 4recess 25 of a depth as
35„ture in'positioriv upon a‘portion of the valve, or . of‘slightly greater depth than‘that‘of thelportion
f ` `cylinder -housingfindicated in. the afragmentary ‘ 22 of -,theyalve disk V2li.` The recessii's bounded
.rna'nnfel-_Ä‘`
Y
`
‘i
.
.
`
»
`
M
*
>by an `'outwardly and` downwardly'tapered _cir-- `
‘
i Fig. y3 is a viewin transverse section` through
reumiferential wall" 26 which ïcircuinscribes`- the
another iorm‘of.; the valve‘structurezyvith which'
`
40.thelpresentdnventionis concerned.
beveled face23 ofthefvalve disk portion 22 rand
t “ ‘ ‘
lFig..4 is an enlarged‘fragmentary section show- i `
.terminates in ra flat face I Ii whichabuts against
,
face I5 of the ‘valvey ,seat.,.ßittention,` however', `
-‘ “ "ij ingthe detailedconstruction of the ivalve seat, the ‘ is directed to the fact that the angle .of the face `
" valve member ina partially sealed position there#
“ onßandi the'formation of` thet meeting
facesì oi
the
.
‘e t. .t
„
»
26>is wider than thefan'gle ofthe face 23 to pro
`videafclearance space“ which will permit some
>4:5
flexibility `of the ‘ilipf 28 which‘projects down-
-
Fig. v'5 is a` `fragnient‘ary t view in `vertical section ; jwardly‘from the packing disk 24~as formed by the
g'th alve `structure oi Fig. l with ataper: i
@recess 25. ` The‘bottom face'Ißv ofthe lip 28, as
.i p
"Referring more `liuàti'ipicularly to the drawing, "I0
i 50 indicates awaugoi the pump strueture‘haying a
e particularly indicated atFigI 4 ofthe drawing».
will when compressedagainst the end‘ surface I5
ofthefvalve> seat bushing I2 prior ‘to` the seating
50
tubular valve seat“ yof the' surfaces I4 and 2l` increase the sealing `
bushing I2.' The‘fbore may ‘be tapered' lto form` ' efilciencyof the valve. i Mounted above the pack
.1. bore` il i ftnerei? "toi receive ‘ a
` lasuitable Milt" withïthel valve seat, bushing more
".iâreadily,` or thevalve seat bushing l‘maybe se
¿ “.icured by other ïconventionalfmeans. "A relatively
ing disk 24, -as shown in Fig. lof the drawing,
is a guide `‘cap> 29. yThis `cap is formed with an
‘
2
~
'
-
9,181,988
annular ñanse 30. The outer face of the annu
lar flange 30, as indicated at I9 in Fig. 4, is
spheroidal and is described by an arc represent
ing the radius of the extreme diameter of the
disk, the radius being indicated at b in Fig. 1
ofthe drawing, and the arc being indicated at c.
The radius of the arc described also represents
the radius of the inside
cage 4I shown in Fig. 3 is a thimble Il receiving a
snubber plunger 52 which is formed with a shank
53 carrying a nut 54 at its upper end. Around
the plunger and within thethimble 5| is a spring
55 which resists extreme upward movement ot
the center pin 41 and cooperates with the spring
31 intending to resist>
_
diameter of a cylindrical
„ Valve and also to
cage 3| within .which the valve structure is
hammering action oi' the
restore the valve to a normal
alined position as it returns to its seat.
Fig. 5 shows a structure of the type shown in
10 housed. The valve disk 20, the packing disk 24,
and the guide cap 29 are secured in assembled ` Fig’. 1. but with
the valve disk formed with a
relation to each other by cap screws which pass
through -openings inthe guide cap 29 and the beveled face 'as in Fig. 3.
In operation of the form of the invention shown
packing disk 24 and are threaded into the valve
15 member 20. Spacing bushings 32 extend
in Fig. v1 `the valve structure is assembled as
through the guide cap and the packing disk and ‘ shown. The .valve 'unit' is also assembled and
held in assembled position by the capI screws.
receive the cap screws.
By this arrangement it . yThese screws are preferably held by
is possible to securelyA fasten
the spacing disk 20
56 to prevent them from loosening.
and the guide cap together without unduly com
20 pressing the body ofthe packing disk 24, and
sure of ñuid is exerted against the under spheroid
face of the vvalvev disk 2l, it will rise as guided
while preventing any resilient action ofthe pack
the cage -34. Due, however, tothe spheroidal
ing disk 24 from tending to aid thecap screws
in working loose. The cage 3| is formed with face |901' the guide cap 29 the> valve unit may
a cylindrical wall 33, and is threaded at -its lower freely tilt ai:v various anglesl to the horizontal.
25 end to engage complementary. threads around
The valve unit will then move upwardly and will
the upper vedge oi' the. valve bushing I2. The iìrst encounter the circumferential flange 34 of
the cage at the highest edge of the disk, after
upper end of the cage is substantially open save
foran inturned marginal fiange 34 which forms which the pressure beneath the valve unit'will
`the top opening 35. At suitable points lon this force the guide cap 29 'into alinement with the
entire circumference of the flange 34 so that
ñange recesses 3B are cut to receive .a wrench by
which the cage may be screwed into position or when‘the pressure is relievedffrom beneath the 30
removed therefrom.> vThe inturned `flange 34 valve unit, it will drop freely on to its seat. In
limits the upward movement of the’assembled so doing the valve may become slightly displaced
valve unitwhile permitting it' t'o be raised from Y from its alined position; nevertheless, the sphe
its seat ‘a sufficient distance to uncover ports
formed >through the side wall 33 of the cage.
Attention is also directed to thefact'that this
roidal convex face 2| of the valve disk 20 will en
gage and -seat upon the‘seating face |4 of the
valve` bushing» I2.. 4'I’heend face I6 of flange 23
flange provides a peripheral stop which will'tend of the packing disk 24 will come to seat as itv en
to bring thevalve unit toa normally alined posi Y gages the end face i5 of the valve bushing |2
40 sion when the pressure beneath the valve forces
and priorto the time that the faces 2| and |4
the guide cap 29 upwardly against the ilange 34, finally seat.- 'I‘he Dacking‘member 24 will thus
it being understood that the spheroidal'face | 9 be compressed forcibly on to the seat I5.v In the
of the guide cap 29 makes it possible for this cap form of the invention shown in Fig. 3 the oper
to become tilted in any manner as brought about , ation will be substantially the same. In this
45 by the pressure of the fluid
beneath the valve' ‘ form of the structure, however, springs will tend
to assistthe gravity movement oi' the valve and
unit, but that after this tilting motion the cir
45
cumferential flange. 34'v will aline, the valve so the upward movement `of the valve will be re
sisted by the springs and the force of'impact will
that it will fall directly upon its seat..
In the form‘of the device shown in Fig. l the Vbe yieldably snubbed.
50 valve returns to its seat by gravity. ‘In the form
It will thus be seen that vthis valve'structure
, provides
a freely moving valve element conilned
of the device shown in Fig. 3 the valve unit is
returned to its seat by a spring 31. Referring in movement by the cage only without the use of 60
particularly to Fig. 3 of the drawing it will be
seen that a valve disk 38 is provided to
55
seat upon f
the `beveled seat 3i!> of the. vvalve bushingv 40.
Within the valve disk 39 is a packing'element 4|
having a down turned nange portion 42 which
rests against a face. 43 at the end of the valve
bushing and supplements the sealing action of
the disk. A> guide cap 44 is here shown differ
It will also be evident that due to this
arrangementthe full area of the central bore
through the valve bushings will be clear. It is
not necessary tc provide
`
lguide pins and thus place
the path of the-abrasive
ing from the guide cap 29 previously _generally
described in that while the down turned flange 30
of guide cap 29 circumscribes and conforms to
the circumference of the packing disk 24, in this
65 particular case a guide ilange 45
extends up- '
wardly. This flange is formed with the spheroi
dal face i9 previously described tending to guide
the valve> element within the cage .46 while allow
ing it to have free tilting motion as it moves.
In Fig. 3 the valve disk 38 is shownv as having
an upwardly projecting center pin 4l which ex
tends through the packing disk 4| and the guide
cap 44. A cotter pin 48 passing through the pin
4l holds' the valve element in its assembled posi
75 tion. Mounted in the upper Wall 50 of the valve
60
parts and excessive wear ot'them, and it will,
further, be apparent thatthe valve will automat--A
ìically aline itself at the top of its stroke and will 65
readily come to its seat con'fomiing.A thereto so
that its metallic valve surfaces and non-metallic
valve surfaces may form an effective Vfluid seal.
i vWhile I haveshown the preferred form of my
invention as now known to _me,¿it will be under
.stood that various changes may be made in com
70
lbination, construction, and arrangement of parts
by those skilledin the rart, without departing
from the spirit of my invention as claimed.
75
3
n
t
`
Imaam
‘t `Having thus describedmy inventionfvvhat I
"
claim and desire to secure by Letters Patent` is:
A valve vstructure comprising a valve seatvhav
ing a ñat annular face in a'horizontal plane, a
`downwardly and' ‘inwardly spheroidal face cir
cumscríbed "by said ñat face, a valve element
‘t
freely mounted‘for vertical movement with rela
to `seat upon the `flat face of said valve seat, la"
guide cap mounted above said non-metallic pack
ing disc and being formed with an annular flange,` “
the ` outer face‘of said annular flange being"
spheroidal’, meanssecuring said guide cap, pack-y
5
ing disc and valve member in assembled relation;`
the two seat faces of the valve seat and the‘faces y
of the valve element bearing such relation to each
dischaving a spheroidal face on its under side, other as to insure that the nonmetallic portion
said spheroidal face being adapted to seat upon shall contact the annular valve. seat and be com-_` l10`
thereagainst prior _to contact of the me»> " , \
‘the ïspheroidal face of said `valve seat, a non t pressed
tallic
inclined
faces of the valve and .its ïseat,` and
"metallic packing disc mounted upon the upper
` 1 „tion to said valve- seat, said‘element comprising a
5
‘ ` face of the valve member and having‘a circum
ferentiaI flange extending around the periphery
of the valve member, said fiange‘being adapted
means cooperating with the spheroidal flange to
guide the valve vertically. ‘ “
.
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WALTER A. ABEGG.
15
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