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Патент USA US2137854

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Nov. 22, 1938.
E‘ P. ORDWAY
2,137,854
APPARATUS FOR HOMOGENIZING LIQUIDS
Filed Sept. 4, 1937
INVENTOR.
far! .7.’ 0/676047
W
ATTORNEYS
Patented Nov. 22, 1938
2,137,854
UNITED STATES PATENT OFFICE
‘
2,137,854
,
APPARATUS FOR HOMOGENIZING LIQUIDS 1
‘Earl P. Ordway, Battle Creek, Mich., assignor to
Union Steam Pump Company, Battle Creek,
Mich.
Application September 4, 1937, Serial No. 164,090
4 Claims.
This invention relates toimprovements in ap
paratus for homogenizing liquids such as milk
and has for its objects:
First, to provide such a device in which the
5 liquid is subjected to two stages of homogeniza
tion so that the larger globules of the material
may be broken up in the ?rst stage and the ag—
glomerations of the small globules thus produced
may be separated and broken up to reduce the
10 viscosity of the liquid being treated.
Second, to provide such a device in which clog
ging and air and pressure variations due thereto
(Cl. 99-265)
tral portion 1 of the valve casing. A screw 20 with
a handle 2| and a bearing point 22 is screw
threaded at 23 in the cap l8. Bearing member 24
provided with a suitable seat 25 to receive the
point 22 of the screw 20 is provided and a com
pression spring 26 lies between the bearing mem
ber 24 and the main valve body IT.
A sleeve 21 is ?tted within the cylindrical cham
ber l3 and is provided with a valve seat 28 at the
upper end thereof. It will be noted that this v10
valve seat extends around and is spaced from the
main valve I1. At the lower end of the sleeve 27
are eliminated.
is a suitable shoulder 29 engaging a suitable re
Third, to provide such a device which is simple
and inexpensive in construction.
Fourth, to provide such a device which is sim
ple and effective in operation and which may be
cessed portion 30 of the central portion 1 of the
valve casing, whereby the sleeve 21 and the valve 15
casing ‘I are clamped ?rmly together. A sleeve
3! forms the second valve body. This sleeve is
?tted around and is slidable on the main valve
body I1 and is provided with a flange 32 which
engages the valve seat 28. The outside of the 20
sleeve 3| slides on the walls of the chamber i5.
Suitable packings 33 and 34 are provided.
A bore 35 extends substantially the full length
of the valve body l1. This bore extends through
the stem 36 of the valve body I1 and communi 25
cates directly with the inlet to the valve casing at
adjusted easily and simply, the valves being in
ter-dependent and properly proportioned to pro
duce the desired result.
Fifth, to provide such a device in which the
valves may be changed simply and easily for
diiierent materials to be treated.
Further objects and advantages pertaining to
details and economies of construction and opera
tion will appear from the description to follow.
The device is pointed out in the claims.’ A pre
ferred embodiment of my invention is illustrated
in the accompanying drawing, in which:
Fig. 1 is a detail sectional view taken through
the improved valve.
Fig. 2 is a perspective view of the main valve
body employed in my invention.
The valve consists of a casing I provided with
suitable ears 2 through which the bolts 3 extend
to clamp it in place on a suitable base 4 having
the passage 5 for the liquid which is to be intro
duced into the valve. This liquid is supplied from
the usual pump which is not shown since it forms
no portion of the invention.
The casing consists of an adapter element 6
and a central member ‘I. Suitable packing rings
8 and 9 form a tight joint. Inlet passages 10
are provided in the adapter 6 and a main valve
seat H is provided at the end of the inlet pas
sage l2 which joins the passages l0. Within the
central portion 1 of the valve is provided a cylin
drical chamber l3 having an outlet l4 therefrom
and above the cylindrical chamber I3 is a smaller
cylindrical chamber I5 terminating in a still
smaller bore 16. The main valve I1 is cylindrical
in form and extends through the bore l 6. It also
extends through the chambers 13 and I5 and is
spaced from the walls of these chambers. A cap
I8 is provided, screw threaded as at 19 to the cen
a point in advance of the valve seat II. A cross
bore 31 communicates with the chamber 15 above
the sleeve 3| so that ?uid from the inlet opening
I2 passes through the valve body to the other side 30
of the sleeve 3|.
The operation of the valve is as follows: Fluid
is admitted from the passage 5 through the in—
let and the pressure exerted against the valve
body I 1 opens that valve slightly. High pressures 35
are employed and the pressure of the liquid be
tween the valve seat II and the valve body I‘!
breaks up the globules which occur in milk or
the like. The liquid then passes through the
chamber l3 inside of the sleeve 21 and past the 40
valve seat 28 and the flange 32. The passage of
the liquid through this valve breaks up the ag
glomerations formed through the ?rst homogeniz
ing treatment. The pressure on the Valve is sup
plied by the ?uid passing through the bore 35 45
and urging the sleeve 31 downwardly as viewed in
Fig. 1.
By properly proportioning the exposed
surfaces, it is possible to obtain the desired pres
sure on the second valve.
50
The pressure exerted through the spring 36
controls the pressure at which the valve body I1
is lifted and this pressure determines the effec
tive pressure required to open the valve or sleeve
3 I. It will be apparent that the single controlling 55
2
2,137,854
device controls the operation of both valves and
that they are inter-dependent.
If it is desired to handle several di?‘erent mixes,
it is possible to employ different sized sleeves
l3 and 31 so that di?erent ratios of pressure
between the main valve and the second valve may
be obtained.
However, in operation the ratio
of said spring, a second valve seat in said cylin~
drical portion of said valve casing and surround
ing and spaced from said main valve body, a
second valve body in the form of a sleeve seating
on said second valve seat and slidably ?tting on 5
said main valve body and on the walls of said
cylindrical portion of the valve casing, sealing
remains ?xed for a given pressure and adjust
means between said second valve body and said
ment. This greatly simpli?es the construction
of the valve necessitating the use of a single
spring only and necessitating a single adjust
main valve and the walls of said cylindrical por
tion of the valve casing, and a passage through 10
said main valve body extending from the inlet
ment. The operator of the apparatus knows
that the proper ratio between the pressures is
obtained at all times and there is no necessity
for more than a single adjustment in order to
obtain the proper treatment of the material.
Having thus described my invention, What I
claim as new and desire to secure by Letters
Patent is:
1. In an apparatus of the class described, the
combination of a ‘casing having a bore therein
communicating with a second and smaller bore
which in turn communicates with a third and
smaller bore, an adapter closing the end of the
?rst bore and having an inlet passage terminating
and past and opening on the other side of said
second valve body, whereby fluid pressure exerted
at the inlet of said valve casing tends to urge
said second valve body toward said second valve 15
seat.
3. In an apparatus of the class described, the
combination of a valve casing having a portion
for receiving a pair of valve bodies and having
an inlet and a discharge, a main valve seat at 20
?tting slidably in said third bore and extending
said inlet, and a main valve body disposed in
said portion of the valve casing and spaced from
the walls thereof, a spring urging said main
valve body on its seat, and adjusting means for
controlling the force of said spring, a second 25
valve seat in said portion of said valve casing
and surrounding and spaced from said main
valve body, a second valve body in the form of
through the other two bores, a cap on said cas
a sleeve seating on said second valve seat and
ing, a spring in said cap tending to urge said
main valve body toward its seat, and an ad
justing means for controlling the tension of said
slidably ?tting on said main valve body and on 30
the walls of said portion of the valve casing,
sealing means between said second valve body and
said main valve and the walls of said portion of
the valve casing, and a passage through said
main valve body extending from the inlet and 35
past and opening on the other side of said sec
ond valve body, whereby ?uid pressure exerted
at the inlet of said valve casing tends to urge said
second valve body toward said second valve seat.
4. In an apparatus of the class described, the
in a main valve seat, a main valve body of cylin
drical form seating on said main valve seat and
spring, a sleeve ?tted within said larger bore
and surrounding and spaced from said valve body
to provide a passage for ?uid past said valve
body and having a valve seat at its end opposite
said adapter, said adapter holding said sleeve in
position, a second sleeve slidably ?tted on said
main valve body and on the walls of said second
40 bore and carrying a valve body adapted to seat
on the valve seat on the end of said sleeve in
said ?rst bore, an outlet with which said second
valve communicates, and a passage through said
main valve body opening into said second bore
45 at a point beyond said sleeve in said second bore
and communicating with the inlet in advance
of said main valve seat.
2. In an apparatus of the class described, the
combination of a valve casing having a cylindri
50 cal portion for receiving a pair of valve bodies
and having an inlet and a discharge, a main valve
seat at said inlet, and a cylindrical main valve
body disposed in said cylindrical portion of the
valve casing and spaced from the walls thereof,
a spring urging said main valve body on its seat,
and adjusting means for controlling the force
combination of a passage having an inlet and an
outlet, a valve in said passage having a valve seat
and a valve body and a spring to oppose the ?ow
of ?uid through the passage from the inlet, and
means for adjusting the force of the spring, a 45
second valve in said passage having a valve seat
and a valve body having a hydraulic cylinder
and piston for forcing said valve body of said
second valve to its seat, said apparatus being
formed with a passage leading from the inlet
passage in advance of said first valve seat to
said hydraulic cylinder, whereby the pressure of
?uid ?owing through said passage tends to urge
said second valve body to its seat in opposition
to the ?ow of ?uid through said passage.
EARL P. ORDWAY.
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