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Патент USA US2128696

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Aug. 30, 1938.
E. H. ENGELHARDT
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RADIATOR FILLER PASSAGE
2,128,696
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Filed March a, 1957
$191.
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WATER> 0/? com/N6 JACKET
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INVENTOR
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ATTORNEYS
2,128,967
Patented Aug. 30, 1938
UNITED STATES
PATENT
OFFIQE ~
2,128,696
RADIATOR FILLER PASSAGE
Eric H. Engelhardt, Detroit, Mich.
Application March 8, 1937, Serial No. 129.772
2 Claims.
This invention relates to radiators for motor
vehicles and more particularly to a ?lling device
for the radiator and has for the primary object
the provision of means whereby the greater pro5 portion of liquid directed into the radiator will
be discharged into the lower chamber of said
radiator to bring about ?lling of the radiator
from the bottom upwardly to the top thereof so
that the liquid will rise in the cooling jacket of
10 the engine to which the radiator is connected and
thereby prevent trapping of air in the water jack
et as now frequently occurs by the liquid ?owing
into the return pipe of the radiator before the
latter and the cooling jacket become ?lled with
liquid.
With these and other objects in View, this in
vention consists in certain novel features of con
struction, combination and arrangement of parts
(Cl. 123-174)
to the radiator and consists of a ?lling spout or
neck 8 extending into the chamber 2 by being at
tached to a wall of said chamber. The ?lling neck
is normally closed by a removable cap or cover 9.
The ?lling neck is integral with a pipe or tube It)
extending downwardly into communicationwithv
the lower chamber 3 so that when the liquid is
poured into the neck it will be discharged into the
lower chamber 3 and when ?lling the radiator
and the cooling jacket of the engine the liquid 10
rises until the jacket is ?lled and the chamber 2,
the latter receiving the liquid from the cooling
jacket by way of the pipe 6. The radiator and
cooling jacket ?lled in this manner will be free of
air pockets. In order that a small amount of liq
uid may pass directly into the upper chamber 2
small ports II are provided in the ?lling neck.
However, the amount of liquid admitted directly
to ‘ be hereinafter more fully described
and
20 claimed.
For a complete understanding of my inven
to the chamber 2 will not be sufficient that it can—
not be taken care of by the tubes of the radiator
in passing in the direction of the lower chamber 3.
tion, reference is to be had to the following de
scription and accompanying drawing, in which
Consequently, this liquid will not enter the pipe
6 and contact the thermostat which if engaged
Figure 1 is a rear elevation, partly in section,
by said liquid would assume a closed position and
25 illustrating a radiator constructed in accordance
with my invention.
Figure 2 is a top plan view illustrating the same
connected to a water jacket of an engine and
showing a thermostat associated therewith.
Referring in detail to the drawing, the numeral
30
l indicates a conventional type of radiator em
ployed on motor vehicles including the upper and
lower chambers 2 and 3 connected by the cooling
tubes 4 and on which. are mounted the ?ns 5 for
35 directing the air to the tubes.
The character 6
indicates the return. pipe of the radiator while the
character 1 indicates the outlet pipe. The pipes
trap air in the upper part of the cooling jacket 25
and consequently prevent complete ?lling of the
latter with the liquid.
What is claimed is:
l. The combination. of a radiator fashioned
with upper and lower Water chambers, cooling 30
tubes connecting said chambers together, said
upper and lower chambers having return and dis
charge pipes respectively, said return pipe adapted
for connection with a return line having a ther
mostat therein for controlling the ?ow of water '
therethrough from the water jacket of an engine,
said discharge pipe adapted for connection with
6 and l are connected through return and feed
a feed line to said jacket; and a quick ?lling de
lines 6a and ‘la. respectively to the cooling jacket
vice for ?lling said tubes and comprising a ?lling
neck extending through said upper chamber and
communicating with said lower chamber, said
neck fashioned with outlet ports within said up
per chamber to permit a ?lling of said tubes from
said upper chamber coincident with the ?lling of
said tubes from said lower chamber, said ports
40 l5 of the engine of the motor vehicle. In the, re
turn line 6a, between the cooling jacket of the
engine and the return pipe 6, there is located a
thermostat l6 for the purpose of controlling the
circulation of the Water through the jacket from
45 the radiator. Radiators and cooling systems of
engines equipped with a thermostat as referred
to require very slow ?lling of the system with liq
uid or otherwise air will become trapped in the
upper portion of the water jacket or between the
~50 latter and the upper chamber 2 of the radiator so
that if unnoticed will bring about overheating of
the engine for lack of liquid. To prevent the for
mation of air chambers in the cooling system as
above stated and to permit the radiator to be
55 rapidly ?lled with liquid my invention is adapted
of a size relative to said tubes to preclude water
discharging therethrough from ?ooding said up
per chamber and consequent over?owing into said
return line in advance of the ?lling of said tubes
whereby to prevent actuation of said thermostat
to closed position before water from said lower
chamber in?uences such actuation thereby elimi
nating the formation of air pockets in said jacket
and return line.
2. The combination of a radiator fashioned 55
2
2,128,696
with upper and lower Water chambers, cooling
tubes connecting said chambers together, said up
per and. lower chambers having return and dis
charge pipes respectively, a water jacket of an
engine having return and feed lines connected
to said return and discharge pipes respectively, a
thermostat Within said return line for controlling
the ?ow of Water therethrough from said water
jacket, and a quick ?lling device for ?lling said
10 tubes and comprising a ?lling neck extending
through said upper chamber and. communicating
with said lower chamber to permit a ?lling of said
tubes from said lower chamber to preclude wa
ter from ?ooding said upper chamber and over
?owing into said return line in advance of the
?lling of said tubes whereby to prevent actuation
of said thermostat to‘closed position before water
from said lower chamber in?uences such actua
tion thereby eliminating the formation of air
pockets in said jacket and return line.
ERIC H. ENGELHARDT.
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