US984982A - Cooler for internal-combustion engines. - Google Patents

Description

C. L. VAN SGHGIGK. COOLER EOEINTERNAL GOMBUSTION ENGINES.

mmm-,61119521 1911. V

APPLICATION FILED APR,24, 1909.

y .my D @a Ammfys WTNESSES UNITED sTATEs PATENT.4 oEEioE,

CHARLES LAEUREN VAN soHOIoK, OE MILWAUKEE, OREGON, AssIGNoR OE ONE-'ritratti i To HAROLD E. SPENCER AND ONE-THIRD To MANLIUs E. SPENCER, oF PORTLAND,

OREGON. y

COOLER `FOR INTERNAL-COMBSTION ENGINES..

To all whom it may concern:

Be it known vthat I, CHARLES L. VAN SCHOIOK, a citizen of the United States, and a resident of Milwaukee, in the'county of Clackamas and State of Oregon, have invented a new and Improved Cooler -tor Internal-Combustion Engines, of which the following is a full, clear, and exact d-escription.

This invention relates to certain improvements in cooling means for internal combustion engines, and-more particularly to an improved tank adapted to be connected .to the jacket of van internal combustion enl jacket-Or shell, which-is itself formed offtwo gine and Voperating automatically to withdraw the heated )vater from the jacket, lcool it, and return the water to the jacket.

The object of my invention is to so construct the tank that therewill be an automatic circulation of the air over the walls of the tank to cool the water,:an`d.so position the tank-that the cooling of the water will bring about the automatic lcirrulation of the latter.

Myv improved tank isin the form of a concentric walls between which the water is held, the inner wall encircling a' large central passage open at the top and bottom and through which air may circulate.

Reference is.-to be had to the accompanying drawings, forming a part of' this specilication, in which similar characters of relerence-indicate corresponding parts in all the figures, and in which- Figure l.is a vertical section through a tank constructed in accordance with my invention and operatively connected to the jacket of an engine; Fig. 2 is atransve'rse section through `the tank Fig. '3 is -a top plan View ofa simplilied form of tank in which the walls are smooth rather than being corrugated; and-Fig. 4lis a horizontal section through a tank in which the central open space is subdivided by partitions through which the water may circulate.

The specific form of tank illustrated in Figs. 1 and 2' is formed of two concentric walls 10 and 1,1, spaced apart to leave a comparatively thin annular water jacket 12 therebetween. The two wallsare connected together at their lower ends by an annular bottom wall 13, and may, if desired, be connected together at their upper ends. 4Preferably, there is no top or cover to the tank,

specification@ Leners Patent. Patented Feb.,- 21, 1911. Application filed April 2, Serial No. 491,947.

seeth-at the waterkin the annular chamber' maj/.evaporate to aid in the cooling effect. The tank is supported Aby suitable legs 111, constituting a standard, so thatthe'bottom o'l the tank is at 'a considerableA distance above the floor or support for the engine.-

The passage or chamber 15l encircled by the engine, and a hose 19 leads from the upper end of this branch to the open top of the tank above the water level in the latter. It 4often happens that the water in thejacket becomes heated to the boiling point, so that i' pass out from lthe jacket along steam will. with the water. The escape of this steam through 'the conduit 17 into the water would tend to render the liow intermittent were it not-for the branch 18. lThe steam or air bubbles escape up this branch, while the water flows along the'conduit lfuninterruptedly. Any water which may be carried up the branch by the steam will be returned -to the tank through the hose 19.

The inner and outer walls of the tank may be corrugated soithat the surface area of the tank will be greatly increased in proportion to the volume of the tank. more, the corrugations present sharp angles from which thc heat may be more readily dissipated. In Fig. 3 l` have illustrated a somewhat simpler form in which the Walls 10aan l 11a are smooth and devoid of corrugations. y The tank Vneed not necessarily be cylindri'cal in cross section, as it is evident that v substantially the same results might be obtained by forming the tank rectangular in Further- V cross section, as indicated in Fig.. 4.-. In this l uen-.tubes or .conduits form partitionsacross th''tank, andthe lower `end of'each of the The hot water.' coming 'from the engine jaelgeris' delivered through the. conduit 17a) theupper,portion of the jacket, and the air within the passage .15 and in' contact with the outer surface of the tank is heated by radiation fromthis hotwater. The heating ot' theair causes it' to` rise and draw in fresh .cool .airatthe lower portion of" the passage. l and draw fresh cool air intocontact Withthe -lower portion of the outer surface of the g tank. -The heat of the Water thus creates an automatic air circulation, and as the water becomes cooler it descends to the lower portion of the tank and rises through the conduit 16 to displace the hot water in the engine' cylinder. The water automatically circulates. due to thediife'rence intemperature of the tankandthe engine cylinder,-

and the air automatically circulates due to th'e difference intemperatureof the Water at the upper and lower ends-ofthe tank.

- No fanor other suction deviceneed be em ployed for creating any forced draft of the air and no pump need be employed for circulating the water; 'The entire system Voperates automatically tain the engine .cylinder at vthe proper temperature.

Having thus described' my invention, Iy claim as'new and' desire to secure by Letv ters Patent: y

l v -1. A cooler for -water-jacketed internal combustionengines having two concentric vertically-disposed -Walls spaced -apart to and efficiently to mainv lower ends, means for supporting said cooler atan elevation .to permit the free admission of air to the lower. end ofthe central air passage, means for deliverin"yvater from the lower v portion of the cooler to the water jacket of an' engine, and a conduit fordelivering waterV from, said jacket to the upper said conduit having a portion of the' cooler, y branch leading from the upper side thereof upper and and delivering to said waterchamber and serving for the escape of steam from the en'- ginc jacket and said conduit, saidwater chamber having the top thereofl open to facilitate the evaporation of thewater.

2. A cooler.y for water-jacketedinternal -combustion engines, includin water chamber, means for-de ivering water from the llower portion of/the chamber to the water Jacket of an enginef'afcoiiduit .ftr delivering water from` the upper portion o cooler butvbelow the normal water level theren, `and a branch conduit leading* from the upper side of said conduit and 'delivering to the water c'heunbery above/.the normal water level in the latter, the escape of steam` from the. jacket and conduit.

In testimony whereof I have 'signed my name to'this specification in the two subscribing witnesses.

CHARLESy LABUREN VAN SCHOICK.` .v

J T. WnLLaoE.

an open top and ser/ving .for

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