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Патент USA US2412146

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Dec. 3, 1946.
,412,146
o. A( HANSEN
TRANSPORT VEHICLE FOR LI'QUEFIED GAS
Filed April 1e, 1945
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atented Dec. 3, 1946
2,412,146 i
UNITED STATES PATENT OFFICEl
` 2,412,146
A
TRANSPORT VEHICLE FOR LIQUEFIED GAS
Odd A. Hansen, `Kenmore, N. Y., assigner to The
Linde Air Products Company, New York, N. Y.,
a corporation of Ohio
-
-Application April 18, 1943, Serial No. 483,254
11 claims. (oi. aso-_5)
2
The invention relates to a vehicle tank con
struction, such as a motor vehicle adapted to
ltransport highly volatile liquefied gases such as
particularly liquid oxygen. It is concerned with
the provision of a support for the tank which is
strong for its weight and remains so under the
low temperatures to which it is subjected, func
tions to avoid or reduce to a low value the pro
duction of stresses in the tank from deflections or
ltwisting of the vehicle frame, and restricts to ar 10
-low value the heat leakages therethrough into
the tank.
_
tures of construction, combination of elements,
and arrangement of parts, which will be exem
plified in the construction hereinafter set forth.
and the scope of which invention will be indi-A
cated in the claims. _
.
Fora fuller understanding of the nature and
objects of the invention reference should be had
to the following detailed description taken in con
nection with the accompanying drawing, in
which:
`
Fig. 1 is a general view in elevation of a motor
vehicle with certain parts broken away to show
more clearly features of the invention;
'I‘he arrangement comprises in general a sub
stantially three-point compression type oi' sus
Fig. 2 is a plan view of the-tank and its im- l
pension embodying a main supporting means with
mediate supports with a portionof _the tank
two upright spaced posts, and an auxiliary V
broken away;
shaped support, the apex of the latter having a
Fig. 3 is a cross-sectional view taken on. the
line 3_3 of Fig. 2; and
hinge connection to the frame. In the main sup
portingmeans the two posts are quite widely
Fig. 4 is a cross-sectional View taken on the
spaced, each being provided with a brace, the two 20 line 4-4 of Fig. 2.
,
\
braces together forming a V with the legs con
The vehicle may be any one of various conven-A
verging from the top of the posts inwardly and
tional forms comprising either a single main
downwardly and away from the plane ofthe
truck or a trailer type, but as shown in" a general
way it comprises a unitary‘truck I0 with the
posts. The main supporting means, therefore,
not only assumes the majorpart of the vertical 25 usual chassis having a pair of .side rails II.
load but also takes the forward and back reac
Mounted longitudinally on the truck is a liquid
container I2 of considerable capacity, generally ,
tions and, for the most part, the side reactions.
The auxiliary support having a single hinged
oblong in shape, which may vary as to details,
dependent yupon the purposes, but in the illus
connection to the frame is required to supply lit
tle more than a third point of support for the 30 tration is intended to be used for the transport
of liquid oxygen.
vertical load, and, by appropriate selection of the
locations of the respective supports relative to the "
Surrounding the tank is an outer shell I3 of
sheet metal which provides an intervening space
center of gravity of the tank, the vertical load
at this point is made relatively light.
' between it and the tank. which may be utilized
for insulating purposes as, for example, a ñlling
The supporting means are in general of a
character such as to be relatively unaffected in '
of powdered magnesium carbonate,- The outer
strength by the extremely low temperatures to
shell may include, if desired, a. rear compartment
which they are subjected and to present a path
I4 adapted to house various controls and equip
ment, including pumping apparatus, where that
of high resistance to heat transfer into the tank
and its contents. To these ends the supporting 40 comprises a part of the mobile unit.` Details of
members are made- of a material which remains
these features are omitted in the interest of clar
ity since they form no particular part of the pres
tough at low temperatures and possesses a low
heat conductivity, the latter. property being en
ent invention.
The support for the tank I2 comprises a main
hanced by' making the supporting members of a
long tubular construction.
supporting means indicated generally at I1 and
an auxiliary supporting means indicated gener
The supporting structures are ‘secured to the
tank in a manner such as to be a rigid part
ally at I8. The main supporting means Il is lo
~ thereof but adapted to distribute the supporting
cated at the rear and will normally be positioned
stress over areas of considerable extent. The ar
near the rear‘axle assembly.
With a dual rear
rangement in general has the further advantages. 50 axle _the rear supporting means is preferably lo
of a simple structure capable of ready assembly
cated between the two axle assemblies as shown
in Fig. 1. The arrangement in general is-also
by welding operations.
adapted to. use on a trailer or semi-trailer. The
Other objects of the invention will in part be
elements of the main supporting means Il in
obvious and will in part appear hereinafter.
The invention accordingly comprises the fea 55 clude two upright main posts I9, each supported
2,412,141:
3
.
on an outrigger bracket 20 secured to the respec
tive side rails II of the vehicle frame. The upper
ends of the posts I8 are connected to a cross mem
Il of the vehicle chassis. \The bracket` It is piv
oted ’or hinged on the bracket 24 by way of the
pin 36, which comprises inl effect the axis of a
ber 2| which passes completely through the tank
pivotal support for the fron-t end of the tank.
I2. Each of the posts I9 is provided with an
The braces 32 and cross member 30 are tubu
lar and comprised of a material like that de
angular brace 2l which extends from near the
top oi' the respective post downwardly and in
scribed above in connection with the rear sup
wardly toward the longitudinal center line cf the
porting members, and the braces 32 are alsorela
tively long. resulting in a support well adapted
vehicle and also away from the plane of the posts.
Thetwo braces together form a substantially V 10 to stand up under the low temperatures and ca
pable of maintaining heat leakage at a minimum.
arrangement, and the lower ends are welded. to
The outer shell I3 may be supported in any
a common plate 2l which in turn is secured to a
suitable manner, such as by a substantially three
rigid strong cross beam or member 25 secured
point arrangement similar to that provided for
between the two side rails II'. ’I'he fabrication of
the supporting structure may conveniently be by 15 the main tank I2.
way of welding, that is, the adjoining ends of
The positions of the main supporting means I‘I
and the auxiliary supporting means Il relative
each upright post I9 and the cross member 2 I ‘are
to the tank and to each other may be varied in
welded together and the upper end of the brace
,22 is welded to the post Il, and likewise the lower . accordance with the particular conditions. but
the arrangement shown has been found to 'be
ends of the braces 2l are welded to the plate 24.
particularly advantageous in which the rear sup
Each of the supporting members I9.' 2| and 23
porting means carries approximately three
is of tubular construction _and the members I9
fourths of the vertical load and the auxiliary
and 23 are of considerable length. Each mem
front support the remaining one-fourth. -Accord
ber` is composed of l a material having high
strength at low temperatures and in general a low 25 ingly, the front support with the pivotal connec
tion may be made relatively light weight and the
heat conductivity considerably less than that of
rear supporting means. which is made more sub- .
ordinary iron or steel. For example, stainless
stantial and rugged, can appropriately be pro
steel or the alloy commonly known as Everdur are
4vided with strong braces, such as those shown,
well suited to the purpose. The tubular cross
section. low heat conductivity and elongated path so which will assume the forward and rear reac
of travel for the heat combine to produce a sup
tions and, for the maior part at least. the side
port through which heat leakage into the tank
reactions.
`
and consequently evaporation losses are kept very
In general, the supporting means for the tank
comprises a three-point mounting on compres
low. This restriction of heat leakage and evapo- ration is a matter of considerable economy and 35 sion struts. The provision of the braces 22. causes
importance in the transport of such materials
some deviation from a precise three-point sus
as liquid oxygen. The tubular construction af
pension means. but in view oi' the fact that vthe
fords the additional advantage of being relatively
cross supporting beam for the bottom ends of the
lißhtweight for its strength.
. braces 22 is not displaced any great distance from
’I‘he structure also includes preferably a sup 40 the vertical plane of the posts Il. and the further
porting strap or girdle member 2l extending
fact that the bottom ends of the braces 28 are
brought closely together midway between the side
around underneath the bottom ofthe tank. the
upper ends being pierced by the cross member 2|.
rails II. the deviation from an exact three-point
suspension is not great. In general the tank is
'I‘he strap 2l is likewise welded to the cross mem..
-relieved of distortion and corresponding stresses
ber 2l and the member 2l is hermetically sealed
resulting from deflections and twisting of the ve
Within the tank I2 lby the application of suitable '
hicle frame. Also the character of the supports
welding. Additional reinforcing plates ~2‘I may
and their connection to the tank are such that
be applied to the side of the tank, abutting the
the strain imposed onthe tank from the vertical
` strap 2l adjacent where it is pierced by the cross
loads is distributed over relatively large areas.
member 2|. The strap 2l and plates 21 are prei'-~
It will be understood that the tank I2 will have
`erably secured tothe tank surface by brazing or
welding.
_
,
appropriate inner bracing structure and bailes
’I'he front suspension means Il is-shown more
clearly in Fig. 4 -taken in connection with Fig. l.
not shown herein since such features form no
' particular part of the present invention‘and may
and comprises in general shape a triangular s.
vary as to details.
structure, including a tubular 'cross member Il
walls as shown in Fig. 4, the ends of the cross-
Since certain changes may be made> in the
above construction and .different embodiments
of the invention could be made without depart
member being hermetically sealed `by welding in
ing from the scope thereof. lt'is intended that
passing through the OPPOSite sides of the tank
the tank where it pierces the walls thereof. A
supporting or reinforcing strap or rib Il extends
underneath the tank, the upper ends of this U»
shaped member being secured as by welding to
the ends of the cross member Il and the strap
I being also brazed along its edges tothe tank sur
face. A pair of braces 32 have their respective
upper ends secured to the corresponding ends of
the strap member II adjacent the ends of the
_
all matter contained in the above description or
shown in the accompanying drawing shall be
interpreted-as illustrative and not in a limiting
sense.
It is also to be understood that the following
claims are intended to cover all of the generic
and specific features of the invention herein de
scribed, and all statements of the scope of the
invention which. as a matter of language, might
b`e said to fall therebetween.
, cross member 3l and 'extend downwardly in the
Having described my ‘ invention. ‘ what I'
form of a V to a common bracket l! to which 70
they are secured. Welding. is employed prefer
claim as new and desire to secure by Letters
ably for securing the braces 32 to the respective
parts. 'I’hebracketßisinturnsupportedona
complemental. bracket Il which is secured to a
crossbeamllextendingbetweenthesideraiil
Patent, is:
1. In a transport vehicle having a tank for
highly volatile liquefied gases mounted longitudi
nally on the frame thereof, and an outer shell with
'
f
2,412,148 '
5
an insulating space of considerable thickn'ess be-`
tween the shell and tank, a supporting means
near one end comprising a tubular vertical post at
each side of the tank connected thereto and ex
tending through said insulating space and an
angularly arranged tubular brace for each of said
posts extending from near the top of the respec
6
ment having’a. pivotal support to the vehicle
frame, the axis of which extends longitudinally
of the vehicle,l said cross members being her
metically sealed in said tank at the respectivel
junctures with the tank shell.
l
f
6. In a vehicle having a tank mounted longi
tudinally thereon, a main supporting means
spaced inwardly from one end, comprising a
tive post downwardly and inwardly toward the
longitudinal center line of the vehicle and away
tubular vertical post at each side of the tank,
from the plane of the posts, and a supporting 10 a tubular cross member secured at its opposite
ends to said posts respectively and extending
means for the other end of the tank embodying
through said tank, an angularly arranged brace
tubular members extending from the tank down
for each oi' said posts extending from near the
wardly through said insulating space and con
top of the respective post downwardly and in
nected at their lower ends to a ybracket provided
with a pivotal connection to the frame, said 15 wardly toward the longitudinal center line oi the
vehicle and away from the plane of the posts, and
tubular posts at each end being of a metal mate
rial having a low thermal conductivity andl
a second support for the other end of said tank
capable of retaining its strength at low temper
comprising a structural element secured to the'
tank closely adjacent said other end and having
atures.
2. In a vehicle having a frame with side rails 20 a pivotal >support to the vehicle frame, the axis of
which extends longitudinally of the vehicle.
and cross members with a tank for highly volatile
liquefied gases mounted thereon and an outer
shell forming an intervening insulating space oi
considerable thickness. a tank supporting post
at each side of the vehicle supported on the frame
and with their upper ends connected to said tank.
and a brace for each of said posts connected to
and extending from near the top of the respective
'7. In a vehicle having a tank mounted longitu
, dinally thereon, a main supporting means spaced
inwardly from one end comprising a tubular ver
tical post at'each side of the tank secured at
their upper ends to said tank, an angularly ar-v
ranged brace for each of said posts extending
from near the top of the respective post down
post, said braces converging downwardly and in
wardly and‘lnwardly toward the longitudinal
wardly toward each other and connected at their 30 center line of the vehicle and away from the
lower ends to a cross member between said side
plane of the posts, and a second support for the
rails at a point spaced longitudinally of the ve
other end of said tank comprising a pair of tubu
hicle frame from the plane of the posts transverse
lar members having their upper ends secured to
to the vehicle, said posts and braces being com»
said tank in spaced relation transversely there
posed of a material having a low thermal con
of and converging downwardly with their lower
ductivity and capable of retaining its strength.ends secured together and provided with a pivotal
at extremely low temperatures.
.
support to the vehicle frame, the axis of which
3. In a vehicle tank structure a pivotal support
extends longitudinally of lthe vehicle.
therefor, comprising a cross member extending
8. In a, vehicle having a tank mounted longl# o
' through said tank piercing the shell at opposite 40 tudinally thereon, a main supporting means
spaced points, a supporting strap extending un
spaced inwardly from one end comprising a tubu
derneath said tank between said points, a struc
lar vertical post at each side oi’ the tank secured
tural supporting means extending downwardly
at their upper ends to said tank, anangularly
from said tank at said points. and a pivotal sup
arranged brace for eachV of said posts extending
port to the vehicle frame at the lower part oi' said
from near the top of the respective post down
structural supporting means.
4. In a vehicle tank structure a pivotal support
therefor, comprising a cross member extending
wardly and inwardly toward the longitudinal
center line o1’ the vehicle and away from the
plane of the posts, and a second support for
through said tank piercing the shell at opposite
the other end of said tank comprising a pair
spaced points, the shell being welded to said mem 50 of tubular members having their upper ends se
ber at said points to form a hermetical seal, a
cured to said tank in spaced relation transversely
supporting strap extending underneath said tank
thereof and converging downwardly with their
between said points, a structural supporting
lower ends secured together and provided with a
means extending downwardly from said tank
pivotal support'to the vehicle frame', the axis of
at said points, the respective ends of said mem
which extends longitudinally of the vehicle, said
ber and supporting strap and said structural sup
vertical posts and tubular members being com
porting means being rigidly secured together by
posed oi' a metal material having the combined
welding at said points, and a. pivotal support to
`characteristics of a low thermal conductivity vand
the vehicle frame at the lower part of said struc
of retaining its toughness and strength at tem
tural supporting means.
60 peratures considerably below 0° centigrade.
5. In a vehicle having an oblong tank mounted
9. In a, vehicle having a main frame, the com
longitudinally thereon, a main supporting means
bination therewith of an‘oblong tank for highly
spaced inwardly from one end, comprising a ver
volatile liqueñed gases mounted on and above
tical post at each side of the tank connected to
said frame extending longitudinally of the vehicle,
the tank, a cross member connected to said posts 65 an outer shell forming an intervening insulating
and extending through said tank, an angularly
space of considerable thickness extending com-‘
arranged brace for eachl of said posts extending
pletely around said tank, and means extending
from near the top of the respective post down
through said space for supporting said tank on
wardly and inwardly toward the longitudinal
said frame comprising a tubular post at each
center line of the vehicle and away from the plane 70 side of the tank toward one end supported on
of the posts transverse to the vehicle', and a second
the frame with their upper ends connected to
support for the other end of said tank comprising
said tank, a brace for each of said posts connected
a second cross member extending through said
to and extending from near the top of the re
tank, and a structural element secured to the ends . spective post and inclined downwardly and away
of said second cross member, said structural ele 75 from the post to said frame, and supporting mem
2,412,146
i
7
constructionand material having low thermal
bers for the opposite end o! said tank extending
downwardly therefrom connected together >at
their lower ends and provided with a pivotal sup
port to said frame, said tubular posts and mem
conductivity and capable of retaining their
strength at extremely low temperatures.
11. Ina vehicle having a wheeled chassis the
combination therewith oi' an elongated tank for
bersl having a low thermal conductivity and of
a material capable of retaining its strength at
highly volatile liquefied gases mounted longitu
dinally thereon. an outer shell forming an inter
vening insulating space of considerable thickness
10. In a vehicle having a wheeled chassis the
-extending completely around said tank, means
combination therewith or an elongated tank for
highly volatile liquefied gases mounted longitu 10 for supporting said tank on said chassis com
prising a pair of tubular vertical posts toward
dinally thereon, an outer shell forming an inter
extremely low temperatures.
_
one end'spaced apart transversely of said tank
` vening insulating space of considerable thickness
extending completely around said tank, and a sub
stantially 3-point supporting means for support
ing said tank on said chassis comprising a pair of
tubular vertical posts toward one end spaced apart
transversely oi' said tank with one post at each
side thereof having its upper Yend. connected to
is
with one post at each side thereof having its
upper end connected to said tank, and an angu
lar brace for each of said posts, and a pair o!
tubular supporting members located toward the
opposite end of said tank having their upper ends
secured thereto in spaced relation transversely of
said tank, and an angular brace for each of said , said tank and extending downwardly from said posts, and a support for the other end of said 20 tank, said tubular posts and members extending
tank comprising a pair oi tubular members hav
through said insulating space and being o! a con
struction and material having low thermal con
ing their upper ends secured thereto in spaced
ductivity and capable of retaining substantially
relation transversely of said tank and converging
their normal strength at temperatures far below
downwardly with their lower ends secured to
gether, said tubular posts and members extend 25
_ om:> A. HANSEN.
ing through said insulating space and being of a
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