U.S. patent number 3,750,744 [Application Number 05/257,935] was granted by the patent office on 1973-08-07 for cooling radiator.
Invention is credited to Sam Bouras.
United States Patent |
3,750,744 |
Bouras |
August 7, 1973 |
COOLING RADIATOR
Abstract
An improved radiator for use in the cooling system of a vehicle
including a plurality of cooling conduits interconnecting an inlet
manifold and an outlet manifold. The tubes are horizontally
disposed creating efficient cooling of the fluid passing through
the radiator by inducing uniform cross flow between the manifolds
and the tubes. The manifolds may be constructed of a suitable
durable and flexible material such as rubber and are advantageously
molded in a one-piece construction.
Inventors: |
Bouras; Sam (Chicago, IL) |
Family
ID: |
22978414 |
Appl.
No.: |
05/257,935 |
Filed: |
May 30, 1972 |
Current U.S.
Class: |
165/76; 165/175;
165/148; 165/178 |
Current CPC
Class: |
F28D
1/05316 (20130101); F28F 21/067 (20130101); F28F
9/06 (20130101) |
Current International
Class: |
F28F
21/06 (20060101); F28F 9/04 (20060101); F28F
9/06 (20060101); F28F 21/00 (20060101); F28D
1/053 (20060101); F28D 1/04 (20060101); F28f
009/12 () |
Field of
Search: |
;165/178,175,173,148,69,76 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Davis, Jr.; Albert W.
Claims
What is claimed is:
1. A radiator comprising
an molded inlet manifold for receiving fluid being circulated in a
cooling system,
said inlet manifold including a plurality of hollow projections
forming outlet ports
a plurality of cooling tubes removably coupled at one end to the
hollow projections to receive fluid being circulated and reduce the
temperature thereof,
an outlet manifold for receiving fluid from the cooling tubes,
said outlet manifold including a plurality of hollow projections
forming inlet ports to the manifold and being coupled to the other
end of the cooling tubes,
said inlet manifold and outlet manifold are constructed from a
one-piece resilient material,
clamp means for retaining the ends of the cooling tubes partially
within the respective hollow projections of the inlet manifold and
the outlet manifold, and
said clamp means being positioned in surrounding relationship to
each of the hollow projections to effect frictional contact between
a respective tube and the interior of a respective projection.
2. The radiator of claim 1 wherein the cooling tubes are
horizontally disposed.
3. The radiator of claim 2 wherein the clamp means is constructed
of rubber.
Description
BACKGROUND OF THE INVENTION
This invention relates in general to cooling systems and in
particular to an improved radiator for use in the cooling system of
a vehicle.
More specifically, the invention relates to a radiator having a
plurality of thin cooling tubes or conduits which interconnect an
inlet and outlet manifold in a manner that any selected conduit may
be readily inserted or removed from the radiator as required. In
one embodiment of the invention, the tubes lie with their
longitudinal axes extending in a horizontal orientation wherein
improved cooling effects have been found to be achieved due to the
uniform cross flow of the coolant. The radiator of the invention
provides an inexpensive and easily serviced device which may
include a pair of molded one-piece manifolds.
As is well known, a radiator is utilized in a vehicle to reduce the
heat of the coolant fluid in the circulating system of the engine.
Generally, air flow created by a fan or movement of a vehicle
passes through the radiator to reduce the heat of the coolant
flowing therethrough. The radiators most frequently utilized in the
vehicles at present comprise a structure having a single continuous
tube which acts as a cooling conduit. The cooling tube within these
conventional radiators generally is a convolution or the like of a
single length of tube which when leaking or damaged can cause loss
of all the fluid in the cooling system. It is extremely troublesome
to repair a conventional radiator since the entire device generally
must be removed from the vehicle for service. The necessity of
removal increases the difficulty and cost of repairing the radiator
and does not permit a vehicle to be conveniently fixed at a
roadside breakdown location.
Attempts have been made in the prior art to construct radiators
with a plurality of tubes interconnecting a pair of inlet and
outlet chambers. The designs of such prior art radiators have been
deficient since efficient cooling has often not been achieved and
the construction of these devices are expensive to manufacture due
to their design. In addition, the cooling tubes of the radiators
are vertically oriented and it has been found that an efficient
flow of coolant in all cooling tubes is not achieved. Moreover, the
prior art devices utilizing a plurality of tubes are not
efficiently repaired because, as is the case with conventionally
used vehicle radiators, it is necessary to remove the radiators
from the vehicle to remove a damaged or leaking tube. Another
problem presented by the prior art devices is that the
interconnection between the cooling tubes and the chambers
interconnected by the tubes have been subject to leaking problems
due to vibration and poor design of the coupling of the
elements.
SUMMARY OF THE INVENTION
It is, therefore, an object of the invention to improve radiators
for use in a cooling system of power plants or engine.
Another object of this invention is to improve the thermal control
of the coolant of a power plant or engine through the use of a
plurality of tubes interconnecting a pair of manifolds.
A further object of this invention is to facilitate the removal or
insertion of a respective tube to the radiator.
Still another object of this invention is to reduce the complexity
of and cost of manufacturing a radiator.
A still further object of this invention is to increase the
efficiency of cooling of a radiator.
These and other objects are attained in accordance with the present
invention wherein there is provided an improved radiator for use in
the cooling system of engines used in vehicles and the like. A
plurality of thin cooling tubes or conduits interconnect an inlet
manifold and an outlet manifold which may be of a one-piece molded
construction formed from rubber or other suitable durable and
resilient substance. The use of a material such as rubber is
advantageous since it offers an inexpensive material which
resiliently supports the ends of the plurality of cooling tubes and
is resistant to corrosion.
The radiator of the invention also employs the use of horizontally
disposed cooling tubes or conduits which have been found to
increase the efficiency of heat transfer due to the uniform
cross-flow of coolant. The novel design of the radiator herein
disclosed also permits radiators to inexpensively be manufactured
or modified for a variety of different cooling capabilities
depending on encountered operational characteristics of the engine
in which the radiators are intended to be installed and other
conditions. Simple modifications of the radiator, such as varying
the number and size of the cooling tubes and size of the manifold
provide an unlimited range of operational capabilities.
Another advantage of the radiator of the invention is derived from
the fact that the plurality of tubes are readily removed from or
inserted into coupling with the manifolds thereby permitting rapid
and efficient repair of a damaged tube. For example, when a
radiator fails or is damaged at a roadside location, it is possible
to remove the leaking tube and plug the ports to the manifold
whereby the vehicle may be driven to a place where service can be
rendered. Alternatively, a damaged tube can be serviced readily at
the roadside location by removal of the tube and replacing it with
an operative tube. Therefore, the radiator of the invention
provides an inexpensive and efficient radiator which significantly
improves the devices of the prior art.
DESCRIPTION OF THE DRAWINGS
Further objects of the invention, together with additional features
contributing thereto and advantages accruing therefrom, will be
apparent from the following description of several embodiments of
the invention when read in conjunction with the accompanying
drawings, wherein:
FIG. 1 is a front schematic illustration of one embodiment of the
radiator of the vehicle;
FIG. 2 is a front schematic illustration with parts broken away of
a manifold of the radiator of FIG. 1;
FIG. 3 is a top schematic illustration of the radiator of FIG.
1;
FIG. 4 is an exploded partial schematic illustration of another
embodiment of the radiator of the invention;
FIG. 5 is an exploded partial schematic illustration of still
another embodiment of the radiator of the invention.
DESCRIPTION OF A PREFERRED EMBODIMENT
Referring now to FIGS. 1, 2, and 3, there is illustrated an
embodiment of the improved radiator of the invention for use in a
cooling system of power plants or engines of vehicles and the like.
The radiator is adapted to be interconnected in the cooling system
of a power plant or engine in a manner that air passing through the
radiator reduces the heat of the circulating coolant fluid utilized
to cool the engine. The flow of coolant from the cooling system
entering the radiator is directed into an inlet manifold 1 formed
as a hollow elongated tubular member which is constructed of a
suitable resilient and corrosive-resistant material such as rubber.
It is within the scope of the invention to utilize a variety of
other materials to construct the inlet manifold such as metal,
plastic and the like and the manifold may be constructed in other
configurations other than a tubular shape herein disclosed for
purposes of illustration. Inlet manifold 1 creates an inlet chamber
2 which receives the fluid being circulated in the cooling system
and directs the fluid to a plurality of ports formed by egress or
outlet projections 3 which lie in spaced relationship along the
longitudinal length of inlet manifold 1.
It has been found that the inlet manifold advantageously is
constructed a one-piece body to enable the element to be
inexpensively manufactured by suitable techniques such as molding
and the like. Also, the use of rubber is desirable in the invention
herein disclosed since rubber provides a non-corrosive body which
readily absorbs shocks or jarring effects produced by the movement
of the vehicle upon which the radiator is utilized to prevent
leakage at connection points. The bottom of the radiator of inlet
manifold 1 is constructed with a removable plug or stop cock 4
which can be used to drain fluid from the radiator as desired.
An outlet manifold 6 is positioned on the opposite side of the
radiator from inlet manifold 1 and is generally of an identical
construction as inlet manifold 1. Outlet manifold 6 includes an
outlet manifold chamber 7 which receives the fluid circulating in
the system from a plurality of spaced inlet ports created by inlet
projections 8 which lie in spaced relationship along the
longitudinal axis of the outlet manifold in substantial
corresponding horizontal alignment with outlet projections 3 of
inlet manifold 1.
The outlet ports 3 of inlet manifold 1 and inlet ports 8 of outlet
manifold 7 are interconnected by a series of cooling tubes 10
through which the coolant fluid passes therebetween. Cooling tubes
10 includes a plurality of thin elements 10' integrally connected
to the exterior thereof to aid in the cooling of the fluid passing
through each of the tubes. The tubes generally are constructed from
a suitable heat-dissipating material such as aluminum, copper, and
the like. Cooling of the fluid passing through the plurality of
tubes is produced by air flow being created by either the fan of
the vehicle or the movement of the vehicle being directed adjacent
the exterior of the tubes.
Cooling tubes 10 are coupled in fluid-tight relationship to the
inlet and outlet manifolds by being inserted at their ends into the
outlet projections 3 of the inlet manifold and the inlet
projections 8 of the outlet manifold, respectively. The tube and
projections of the manifold are maintained in a secure and
fluid-tight relationship by coupling means 11 including a
conventional clamp member 12 which embraces the exterior of the
projections of the manifold to effect the required frictional
contact between the manifolds and the cooling tubes. If any of the
cooling tubes 10 are subjected to damage or leakage, the
utilization of coupling 11 permits easy removal of a damaged tube
since the clamp and tube may be readily removed from the manifold.
The easy removal of tube allows repair of the radiator without its
removal from the vehicle.
The horizontal orientation of the cooling tubes has been found to
greatly increase the cooling characteristics of the radiator since
the cross flow created by the horizontally disposed tubes 10 effect
uniform and efficient cooling. The increased cooling is produced
because the inlet manifold is substantially filled with fluid
during operation and directs uniform and positive flow to each of
the respective tubes.
Fluid is introduced into the inlet manifold 1 through a coolant
inlet port 20 which is in the form of a projected element located
adjacent the top of the element. Inlet port 20 generally is in
fluid communication with a fluid pump (not shown) which circulates
the necessary flow of coolant through the cooling system of the
vehicle. Inlet port 20 may be coupled to a hose or line of the
cooling system in any conventional manner. Similarly, outlet
manifold 6 is provided adjacent its bottom portion an outlet port
21 which directs the fluid from the radiator to the engine which
heat level is being controlled.
The radiator assembly is mounted to the vehicle by means of bracket
members 22 which receive retaining means such as bolts and the
like. As stated previously, although it is desirable to utilize
rubber one-piece manifolds, it is also within the scope of the
invention to utilize other materials such as aluminum, metal,
steel, tin, plastic and the like. When using other types of more
rigid material other than rubber and the like for the manifold, it
is sometimes desirable to utilize different coupling techniques for
connecting cooling tubes 10 to the manifolds.
Referring now to FIG. 4, there is illustrated another embodiment of
an alternative coupling means 30 for attaching the cooling tubes.
Coupling means 30 includes a sleeve member 31 constructed of rubber
or other suitable material which is slipped over the exterior of
the end portions of the outlet projections 3 and the end of the
cooling tubes 10 wherein a pair of clamps 32 secure the sleeve to
each of the members. It should be apparent that the other end of
cooling tube 10 is similarly attached to the inlet projection 8 of
manifold 6.
Referring now to FIG. 5, there is illustrated still another
embodiment of the radiator in which a different coupling means 40
is utilized to connect the manifold to the cooling tube. The
exterior end portion of cooling tubes 10' and outlet projection 3'
are formed with a series of serrated elements 41 and 42
respectively which retain in fluid-tight relationship a sleeve 43
which is positioned on the end of both members for secure coupling
of the elements. The cooling tubes are similarly attached to outlet
manifold 6.
In the above description, there has been disclosed an improved
radiator for cooling the fluid circulating in the cooling system of
an engine. Although the cooling tubes have been disclosed as being
oriented in a horizontal direction for advantageous cooling, it is
within the scope of the invention orient the tubes in other
directions such as vertical, if desired. Moreover, the tubes may be
interconnected with the inlet and outlet manifold by other
conventional techniques if advantageous.
While the invention has been described with reference to preferred
embodiments, it will be understood by those skilled in the art that
various changes may be made and equivalents may be substituted for
elements thereof without departing from the scope of the invention.
In addition, many modifications may be made to adapt a particular
situation or material to the teachings of the invention without
departing from the essential scope thereof. Therefore, it is
intended that this invention not be limited to the particular
embodiment disclosed as the best mode contemplated for carrying out
this invention, but that the invention will include all embodiments
falling within the scope of the appended claims.
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