close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2405127

код для вставки
Aug. 6, 1946.
J. H. BEACH
2,405,12 '3'
VALV E
Filed June 9, 1943
Ii{l.a-1“:)?!,
INVENTOR.
JusticeHBeaclz.
Patented Aug. 6, 1946
2,405,127
UNITED STATES PATENT OFFICE
2,405,127
VALVE
Justice H. Beach, Canton, Ohio, assignor to The
Hoover Company, North Canton, Ohio, a cor
poration of Ohio
Application June 9, 1943, Serial No. 490,139
10 Claims.
(Cl. 13’7—139)
1
This invention relates to refrigeration and
more particularly to a valve for controlling the
?ow of ?uids through a hermetically sealed sy."~
tem such as an indirect cooling circuit of a re
frigerating machine, or the flow of ?uid such as
the refrigerant, the absorbent or the solution of
an absorption refrigerating apparatus of the
three-fluid type or the flow of ?uids in any other
hermetically closed ?uid circulating system.
2
Other objects and advantages of this invention
will become apparent when taken in connection
with the accompanying drawing, in which:
Figure 1 shows a diagrammatic representation
of two intermittently operating absorption refrig
erating units having an indirect cooling circuit
with the control Valve of this invention applied
thereto;
Figure 2 is a detailed cross sectional showing
In such machines it is sometimes necessary to 10 of the valve according to this invention;
divert ?uid from one place to another, That is
Figure 3 is a cross sectional View taken on line
not a simple matter because the valve must be
3—3 of Figure 2; and
positive in action and the actuating force must
Figure A is a cross sectional View taken on line
be transmitted through the system walls in order
4—4 of Figure 2.
to move the valve positioned on the interior of 15
Referring to Figure 1 of the drawing, A, A’
the system Walls.
represents two generator-absorbers, C, C’ two pri
According to the present invention a slidable
mary condensers, and E, E’ two evaporators.
valve is provided on the interior of the appa
The absorbent-receiving chambers of the gen
ratus to cooperate with valve seats so that when
erator-absorbers A, A’ are connected to con
the valve is shifted, the fluid flow to one cir 20 densers C, C’ by conduits l0, H3’. The con
cuit is stopped and diverted to another circuit.
densers C, C’ have a downwardly inclined slope
A permanent magnet is slidably mounted on the
throughout and are connected by conduits l4, M’
exterior of the system walls so that when the
to receiving vessels l6, I6’, which form a part of
magnet is moved, the valve moves with it and
the evaporators E, E’.
therefore it is not necessary to establish a me 25
Each generator-absorber A, A’ has an absorb
chanical connection from the exterior to the valve
ent-receiving chamber formed by the outer cylin
on the interior.
drical walls of the vessels A, A’, the outer cylin
The system wall immediately beneath the per
drical walls of the heat exchange vessels 18, I8’
manent magnet is made of non-magnetic mate
and end closures (not shown) welded to the cy
rial so that the magnetic lines of force are not 30 lindrical walls. The annular chambers so formed
diverted to other parts of the system, the-slid
are provided with suitable trays (not shown) hav
able valve is made of magnetic material as are
ing openings in the walls thereof and welded to
the valve seats so that when the valve is closed
the inner and outer cylindrical walls of the an
upon its seat a closed magnetic circuit is formed
nular chambers. These trays support any well
‘from the magnet through the non-magnetic
known solid absorbent such as strontium chloride
walls, through the valve seat and the slidable
which will absorb the refrigerant vapor such as
valve, and back through the non-magnetic wall
ammonia, which‘ solid absorbent may be charged
to the other pole of the permanent magnet.
into the absorption chamber in any manner well
By way of exempli?cation the valve according
known to the art.
to this invention has been disclosed as controlling 4.0
The heat exchange vessels l8, l8’ are formed
the flow of an auxiliary cooling medium in an
of inner and outer cylindrical walls having end
indirect cooling circuit for two intermittent ab
closures welded thereto and form annular re
sorption refrigerating machines operating alter
ceiving chambers for an indirect cooling fluid of
nately on the absorption-evaporation and gen
the indirect cooling circuit for the generator
eration-condensation phases so that when one
absorbers A, A’, the construction and operation
generator-absorber is changed from the genera
of which will be described in more detail here
tion phase to the absorption phase, cooling fluids
inafter. In the cylindrical space formed by the
can be diverted from the generator-absorber
inner cylindrical vessels of the heat exchange
which has just finished the absorption phase to
that which has just started the absorption phase.
It is to .be understood, however, that the in
vention is not limited to such‘ use but can be used
anywhere in industrial and other apparatus
where it is desirable to control the flow of fluids
in a hermetically sealed system.
vessels it, l8’ are electric heating cartridges 20,
50 29’ of any suitable construction known to the art.
The upper ends of each of the annular heat
exchange chambers l8, N3’ of the generator-ab
sorbers A, A’ are connected by conduits 34, 34’
to the secondary condensers 36, 36’.
The sec
55 ondary condensers 36, 36’ have a continuous
2,405,127
3
downward slope throughout and lead to a reser
voir
The reservoir?il is connected by con
duit Gil to a valve chamber E2. The valve cham
ber a2 is connected by conduits
M’ to the
lower end of the annular heat exchange vessels
l8, it’ for the generator-absorbers A, A’.
Each of the evaporators E, E’ consist of two
coiled conduits iii, [31" and 138, I58’ and conduits
5t), 5b’ which extend vertically downward from
the receiving vessels it, It’ and connect with
the lower inner ends of the coiled conduits 15?, 4i’
and lit, £38’ while the upper ends of the coiled
conduits iii, 41’ and AS, 158' enter the receiving
vessels i6, It?’ near the top thereof. The coiled
4
iron in proper proportions. The valve element
‘ll and the permanent magnet 80 are made of
such length that when the valve element It is
moved either to the right or to the left a circuit for
magnetic lines of force is formed emanating from
one end of the magnet 80, passing through the
non-magnetic wall 42 into the valve seat mem~
bers 73 or 13’, as the case may be, through the
valve element v‘H and back to the other end of
the magnet 80 again after passing through the
non-magnetic wall of the chamber 42. In such
a construction the valve element ‘H is held tightly
against its seat by the magnetic lines of force
regardless of whether the valve and the mag
conduits M, iii’ are in heat exchange relation 15 net 80 are moved to the right or to the left.
When the permanent magnet Bil is moved to
ship with a freezing chamber 52 while the coiled
the left as shown in Figure 2, the magnetic lines
conduits 116, fit’ have heat exchange ?ns thereon
of force will cause the valve element to move
for cooling the food storage compartment of a
therewith and force the end 48 or the valve ele
domestic refrigerator.
rI‘he thermostatic bulbs 56, 56’ contact the 20 ment ‘H against the magnetic scat T3 to close
the opening to the conduit 41!. Under these conouter surfaces of the generator-absorbers A, A’
ditions the indirect cooling ?uid enters the valve
and are connected by capillary tubes 58, 58’ to
chamber 42 by the conduit 48, passes through the
bellows Eli, % ’, which upon expansion and con
traction are adapted to operate the snap act
ing device to. The bulbs 56, 5E’, tubes 53, 58'
and bellows 6t, 5 ‘’ contain a suitable vaporiz~
grooves 16 in the valve seat member 13’ and
through the opening in the valve element 13’
to the conduit 44'. When the snap-acting de
vice 45 operates to move the magnet 86 to the
able ?uid so that the bellows 88, 653' will expand
right, the magnetic circuit will be broken by the
and contract upon variation in temperature of
movement of the left hand end of the magnet
the bulbs 58, 5%’ as is Well known in the art. A
snap acting switch 62 of any well known con 30 from directly over the valve seat member 13 and
quickly move the valve element ‘H to the right
struction is positioned to be actuated by the snap
to establish another magnetic circuit and hold
acting device ‘it.
the end 46’ of the valve element "ll against the
A thermostatic bulb M is positioned in con
valve seat member 13' to close the opening to
tact with the freezing chamber 52 and is re
the conduit 44'. Under these conditions the in
sponsive to the temperature of that chamber.
direct cooling ?uid will enter the valve cham
Bulb or. is connected by capillary tube 66 to a
ber 42 by conduit 40, ?ow through grooves ‘."a‘
bellows 6i}. Bulb til, tube 65 and bellows 53 con
in the valve seat member 13’, through the
tain a suitable vaporizable ?uid so that the bel
grooves 18 in the valve element ‘H and enter the
lows 63 will expand and contract upon variations
in temperature of the freezing chamber 52 as is 4.0 opening in the valve seat member l3 and thus
?ow into the conduit 44.
well known in the art. The bellows 63 upon ex
The operation of the refrigerating unit as
pansion and contraction is adapted to actuate a
shown in Figure 1 is adequately described in an
snap-acting device ‘it which in turn operates the
application for United States Letters Patent by
valve 12 in the conduit (at and an electrical
45 Otis B. Sutton, Serial No. 446,471, ?led June 10,
switch ‘It.
194.2, and reference is made to that application
Referring to Figures 2, 3 and {l the valve cham
for an explanation of the operation of the ro~
ber 42 forms a housing for a slidable valve 'l'i
frigerating system of Figure 1, which merely
having ends fili, Flt’ which cooperate with valve
shows a setting for the present invention.
‘seat members
‘i3’. Upon reciprocation the
From the foregoing it can be seen that the
valve element ‘ll cooperates with the seats l3, l3’
valve constructed in accordance with this inven
to open or close the openings leading to the con
tion diverts fluid to either of two circuits in a
duits 44, M’. The conduit til leads into the in
closed system by means of a permanent magnet
terior of the valve chamber 42 near the right
mounted exteriorly of the system which acts to
hand end thereof and the valve seat '23’ has
hold the valve tightly closed in either position to
grooves ‘iii to allow ?uid to pass along the sides
which it is moved whereby it is not necessary to
of the seat member it?’ whether the valve ele
transmit motion from the exterior to the mov
ment "H is in seating engagement with the valve
able valve on the interior of the system by means
seat member it’ or not. The valve element "H
of a mechanical transmitting device requiring a
has grooves ‘l8 cut in the exterior thereof to al
low ?uids to pass from one end thereof to the 60 movable element extending through the Walls of
other.
the fluid system.
housing
is a permanent magnet 89 having
north and south poles at the opposite ends
thereof and which is adaptedto be reciprocated
to the right and to the left by*>the snap-acting
device 45.
limited to the particular structure shown and
described but to include all equivalent variations
Slidably mounted on the exterior of the valve
While I have shown but a single embodiment
of my invention, it is to be understood that this
embodiment is to be taken as illustrative only
and not in a limiting sense. I do not wish to be
thereof except as limited by the scope of the
The valve chamber
is made of non~mag~
claims.
netic material such as certain types of stainless
Iclaim:
steel while the valve element ii and the valve 70
1. A valve for controlling the flow of ?uid in a
seat members '53 and ‘lit’ are made of magnetic
hermetically closed system comprising, a non~
material. The permanent magnet ili'l is prefer
magnetic shell adapted to be hermetically sealed
ably made of a material obtainable on the open
to the system walls, a magnetic valve element
market under the trade name of “Alnico” which
slidably mounted within said shell, a magnetic
is an alloy of nickel, aluminum, chromium and
5
2,405,127
seat member for said valve ?xed within said shell
so positioned relative to said valve element and
and a permanent magnet slidably mounted on the
said valve seat members that movement of said
exterior of said shell and being 50 positioned rela
magnet in either direction will move an end of
tive to said valve element and valve seat member
said valve element against one of said valve seat
that said valve element is moved against and 6 members to close its central opening.
away from said seat member when said magnet
6. A valve for controlling the ?ow of fluids in a
is reciprocated and said valve element, valve seat
hermetically closed system comprising, a sleeve of
member and magnet being so related as to form
non-magnetic material adapted to be hermeti
a closed path for magnetic lines of force when
cally sealed to the walls of the system, including
the valve is in closed position.
a conduit Welded to each end of said sleeve and
2. A valve for controlling the flow of ?uid in a
a side conduit connected to the interior of said
hermetically closed system comprising, a non
sleeve through its side walls near one end thereof,
magnetic shell adapted to be hermetically sealed
a double ended valve element of magnetic mate
to the system walls, a magnetic valve element
rial slidably mounted in the interior of said
slidably mounted within said shell, a magnetic 15 sleeve, a valve seat member of magnetic material
valve seat member fixed within said shell at each
?xed to the interior of said sleeve at each end
end thereof, the ends of said valve element being
thereof and having a central opening to coop
formed to cooperate with one of said valve seat
erate with the ends of said valve element, one of
members when moved in either direction and a
said valve seat members being positioned at said
permanent magnet slidably mounted on the ex
side conduit and being so formed as to allow ?uid
terior of said shell and being so positioned as
to flow from said side conduit to the interior of
to move the ends of said valve element against
said sleeve and an annular permanent magnet
one of said seat members when moved in either
slidably mounted on the exterior of said sleeve
direction.
and being so positioned relative to said valve ele
3. A valve for controlling the ?ow of ?uid in a 25 ment and said valve seat members that movement
hermetically closed system comprising, a non
of said magnet in either direction will move an
magnetic shell adapted to be hermetically sealed
end of said valve element against one of said
to the system walls, a magnetic valve element
valve seat members to close its central opening,
slidably mounted Within said shell, a magnetic
said valve element being constructed to allow ?uid
valve seat member ?xed within said shell at each 30 to ?ow from one end thereof to the other.
end thereof, the ends of said valve element being
7. A valve for controlling the ?ow of ?uids in a
formed to cooperate with one of said valve seat
hermetically closed system comprising, a sleeve of
members when moved in either direction and a
non-magnetic material adapted to be hermeti
permanent magnet slidably mounted on the ex
cally sealed to the walls of the system including a
terior of said shell and being so positioned as to i
move the ends of said valve element against one
of said seat members when moved in either direc
tion and said valve element, valve seat members
and magnet being so related as to form closed
paths for magnetic lines of force when the valve
is in either closed position.
conduit welded to each end of said sleeve and a
side conduit connected to the interior of said
sleeve through its side wall near one end thereof,
a double ended valve element of magnetic mate
rial slidably mounted in the interior of said sleeve,
a valve seat member of magnetic material ?xed
to the interior of said sleeve at each end thereof
4. A valve for controlling the ?ow of ?uid in a
and having a central opening to cooperate with
hermetically closed system comprising, a non
the ends of said valve element, one of said valve
magnetic shell adapted to be hermetically sealed
seat members being positioned at said side con
to the system walls, a magnetic valve element 45 duit and being so formed as to allow ?uids to flow
slidably mounted within said shell, an apertured
from said side conduit to the interior of said
magnetic valve seat member ?xed within said
sleeve and an annular permanent magnet slidably
shell at each end thereof, said valve element co
mounted on the exterior of said sleeve and being
operating with one of said valve seat members to
so positioned relative to said valve element and
close its aperture when moved in either direction 50 said valve seat members that movement of said
and a permanent magnet slidably mounted on the
exterior of said shell and being so positioned as
to move said valve element against one of said
magent in either direction will move an end of
said valve element against one of said valve seat
members to close its central opening and said
seat members When moved in either direction,
valve element, valve seat members and magnet
said valve element being so formed as to provide 55 being so related as to form closed paths for mag
for the ?ow of ?uid from one end thereof to the
netic lines of force when the valve is in either
other.
closed position.
5. A valve for controlling the flow of ?uid in a
8. A valve for controlling the ?ow of ?uid in a
hermetically closed system comprising, a sleeve of
hermetically closed system comprising, a non
non-magnetic material adapted to be hermeti
magnetic shell adapted to be hermetically sealed
cally sealed to the walls of the system including
to the system walls, a magnetic valve element
a conduit welded to each end of said sleeve and
slidably mounted Within said shell, a magnetic
a side conduit connected to the interior of said
seat member for said valve, ?xed within said shell,
sleeve through its side wall near one end thereof,
a permanent magnet mounted for reciprocation
a double ended valve element of magnetic mate
on the exterior of saidshell and being so posi
rial slidably mounted in the interior of said
tioned relative to said valve element and valve
sleeve, a valve seat member of magnetic material
seat member that said valve element is moved
?xed to the interior of said sleeve at each end and
against and away from said seat member when
having a central opening to cooperate with the
said magnet is reciprocated and a snap acting
ends of said valve element, one of said valve seat 70 device for reciprocating said permanent magnet.
members being positioned at the side conduit
9. A valve for controlling the ?ow of ?uid in a
and being so formed as to allow ?uids to ?ow
hermetically closed system comprising, a non
from said side conduit to the interior of said sleeve
magnetic shell adapted to be hermetically sealed
and an annular permanent magnet slidably
to the system walls, a magnetic valve element
mounted on the exterior of said sleeve and being 75 slidably mounted within said shell, a magnetic
‘2,405,127
7
valve seat member ?xed Within said shell at each
end thereof, the ends of said valve element being
formed to cooperate With one of said valve seat
members when moved in either direction, a
permanent magnet mounted for reciprocation on
the exterior of said shell and being so positioned
as to move the ends of said valve element against
one of said seat members When moved in either
direction and a snap acting device for recipro
cating said permanent magnet.
10, A valve for controlling the ?ow of fluid in
a hermetically closed system comprising, a sleeve
8
to the interior of said sleeve at each end thereof
and having a central opening to cooperate with
the ends of said valve element, one of said valve
seat members being positioned at said side con
duit and being so formed as to allow ?uids to
flow from said side conduit to the interior of said
sleeve, and an annular permanent magnet
mounted for reciprocation on the exterior of said
sleeve and being so positioned relative to said
10 valve element and said valve seat members that
movement of said magnet in either direction will
move an end of said valve element against one
of nononagnetic material adapted to be hermeti
cally sealed to the Walls of the system including
‘of said valve seat members to close its central
opening, said valve element, valve seat members
a conduit welded to each end of said sleeve and
a side conduit connected to the interior of said
sleeve through its side Wall near one end thereof,
a double ended valve element of magnetic mate
is moved to either closed position and a snap
and magnet being 50 related as to form closed
paths for magnetic lines of force when said valve
acting device for reciprocating said permanent
magnet.
rial slidably mounted in the interior of said sleeve,
20
a valve seat member of magnetic material ?xed
JUSTICE H. BEACH.
Документ
Категория
Без категории
Просмотров
0
Размер файла
629 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа