US1494437A - Oil-cooling device for internal-combustion engines - Google Patents

Description

May 2o, 1924. 1,494,437

` K. R. MANvlLLE OIL COOLING DEVICE FOR INTERNAL COMBUSTION NGINES` Filed May l0 1923 I 2 nvewcoz v 331g his -f-.Pate'nte May 2, i924.

KEITH R. MNVILLE, OF BROOKLYN. YORK, ASSIGNOR TO INTERNATIONAL MOTOR COMPANY, F NEW YORK, N. Y, A CORPORATION 0F DELAWARE.

OIIPCOOLING DEVICE FOR INTERNAL-COMBUSTION ENGINES.

Application led May 1G, 1923. Serial No. 637,943.

To all whom it may concern;

Be it known that I, KEITHy R. MANVILLE, a citizen of the UnitedStates, residing in the borough of Brooklyn, of the city of New o York, in the State of New York, have invented certain new and useful Improvements in Oil-Cooling Devices for internal-Combustion Engines, of which the following is a specification, reference being had to the accompanying drawings, forming a part hereof.

In internal combustion engine practice it is desirable to keep the oil at as nearl the temperature of the cylinder wall as possible, both in summer and in winter, this condition being especially desirable in summer when ,the oil has a tendency to reach "a tempera,- ture above that at which it is most effective in lubricating. It has been pro osed here- 30 tofore to accomplish this `resu t to some degree by an interchange f'heat between the oil and cooling waterb'ut no -simple device, well adapted in automotive practice to satisfy manufacturing requirements and the Arequirements of use, has everbeen devised. In accordancewith the present invention it is proposed to secure an efficient and effective interchange of heat between the lubricating oil and the cooling water` of an internal combustion engine by a simple,in` expensive and unitary-device which maybe introduced in the circulatory system of both the water and oil without disturbin 'the conventional 'construction off any of? parts of the engine. Byzmeans of` this device the oil is maintained at aboutthe same temperature as that of the cooling water so that the temperature of the lubricating oil when thrown onto the cylinder walls is 430 not so dierent from that-of the cylinder. walls whoseternperature is influenced by the water in the jackets: 1

i ln accordance with' he invention the water from the radiator is led through at casing in which is disposed a coil through which the oil passes in its circulatory system. v The casing is preferably formed as an integral aluminum casting with .the ends of the coil of copper pipe or the like cast di- 5@ rectly in its walls thereby eliminating impractical joints and structural difficulties incidental thereto.

The invention will be described in connection with the accompanying drawings the v which illustrate the preferred embodiment thereof. In the drawings:

Figure l is a view`in longitudinal central section through an aluminum casing having a coil for the oil disposed centrally thereof.

Figure 2 is a similar view` taken at right angles to the section of Figure land indieating suitable. connections for the oil pipe.

The circulatory pipe n for the cooling water which may be considered as extending from the radiator tothe jacket of the motor is broken to admit the introduction of a tubular casing b of enlarged diameter which may be formed at its opposite ends withthreads b for convenient connection with the piping a, the free `:dow of water being wholly unimpeded by the introduction of the casing b. Within the casing is ydisposed a coil of pipe c, preferably copper or other efficient heat radiating metal, the coils thereof being preferably arranged co-axially with respect to the piping a and to the casing o as indicated bv the arrows in Figure 2.

However, the coi s c are mounted in spaced Y relationship to the wall of the casing b and are preferably spaced from one another so that\the water may'ilow freely around the coils and come into contact with the entire exposed superficial surface thereof. ln accordance with the invention it is proposed,

in the preferred embodiment, to case the ends 621.62, of the coil @directly in the wall of the' casing othereby forming a simple, inexpensive, water-tight connection and eliminating a substantial item of expense in manufacture and lessening the danger of .leakage as might be expected were conven- .tional joints employed. The inlet end c' of the coil and the outlet end c2 are preferablyvush with the external surface of the,

casing c to facilitate the attachment of the man1 o A ing, respectively, 'with lthe ends c', c2, for the inflow and outflow 'ofllubricatin oil, the passages d', ai?, being'connected in t e regu- .lar circulatory system.` .It is evident, however, that the ends c', c2, of the coil might ld d having channels. d (i2, registerextend outside of the casing o and be thread- I ed for connection of other pipes, as through union nuts. The casing b in the interest of lightness and cheapness in manufacture is referably cast of aluminum, the coil c beingiplaced in. the mold. with its ende c', 0*,

in proper osition before the aluminum is poured. Tie ends c', c2, Will constitute an adequate support for the coil c a'nd maintain it in desiredrelation to the flowing Water and to the walls of the casing.

l From the description given it will be evident that provision has-been made for effecting the desired interchange of heat between the Water and oil in the conventional circulatory systems of an internal combustion engine with the minimum expense, greatest accessibility und most efficient and durable devices.

Changes in details of construction may be made without departing from the spirit of the invention.

What I claimis:

l. )in oil cooling device for internal combustioin` engines comprising a longitudinal pipe section connected in the piping of the Water circulatory system and disposed coaxially therewith and a coil of pipe mounted 2.` Oil cooling means? Within the said section co-axially therewith and having its ends connected through the side Walls of the said section in the circulatory oil system.

devices comprising a cast metal pipe section connected longitudinally in the circulatory piping of the Water system and coaxially therewith and a coil of pipe disposedtherein and having its ends cast in theside walls thereof and connected in the oil" circulatory system.

v 3. As an article of manufacture a casing of cast aluminum adapted for connection in the Water circulatory system of an internal combustion engine and having disposed therein a coil of copper pipe the ends of which are ca'stin the -Walls of the casing and connected in the oilA circulatory system.

rlhis specification signed this 8th day of May, A.. D. 1923.

KEITH R. MANVILLE.

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