US1369558A - Air-delivery cooler for turbo-compressors - Google Patents

Description

E. H. SHERBONDY. AIR DELIVERY COOLER FOR TURBO COMPRESSORS.

APPLICATION FILED APR. 30, 1918. 1,369,558. Patented Feb. 22,1921.

2 SHEETS-SHEET I.

E. H. SHERBONDY.

AIR DELIVERY COOLER FOR TURBO COMPRESSORS. APPLICATION FILED APR so, 1918.

1,369,558. I Patented Feb.22,1921.

2 SHEETSSHEET 2.

WITNESS INVENTOR zz Earl )i'. Sizer-50nd ATTORNEY as the description proceed its delive PATENT OFFICE.

EARL H. SHERIBONDY, OF CLEVELAND, OHIO.

AIR-DELIVERY COOLER FOR TURBO-COMPRESSORS.

Specification of Letters Patent.

Application-filed April 30, 1918. Serial No. 231,768.

To all whom it may concern:

Be it known that I, EARL H. SHERBONDY, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Air-Delivery Coolers for Turbo-Compressors, of which the following is a specification.

This invention relates to a device for cooling air which has been compressed by a turbo-compressor, which turbo-compressor is adapted to be operated by the waste gases from an internal combustion engine, as described in detail in m co-pending case, Serial No. 224,356, filed arch 23, 1918.

The turbine of the turbo-compressor is particularly designed for use on an airplane engine, to supply air under constant pressure to the carbureters of said engine, regardless of the height at which the airplane may be.

On account of the limitations of space in an airplane fuselage, the turbo-compressor unit must be small, which results in the blower casing of the compressor wheel being rather close to the gas casing of the turbine, and this results in the rad1ation of more'or less heat to the blower casing, and the consequent heating of the air in said casing. Furthermore, simply compressing air, as is well known, raises its temperature; and due to the high speed of the compressor wheel, there is considerable friction and churning'of the air, which still more tends to raise its temperature.

These facts result in the delivery of air from the compressor at too high a temperature for practicable use in the carbureter. It is the object of this invention to provide either air cooled means or water cooled means for cooling the compressed air, before to the carbureter. Other 0 jects and advantages will appear In m copending case, Serial No. 234,558, filed ay' 14, 1918, I show an heat-operated control for use in a similar ap aratus.

n the drawings,

illustrating two-embodiments of my invention,

Figure 1 1s a slde view of an airplane engine with the turbo- Y compresser in place thereon connected to the cooling device, which latter is shown in section; Fig. 2 is a sectional view on the line 22 in Fig. 1; Fig. 3 is a view similar to Fig. 1, of a modified cooling. device; 4

is a longitudinal sectional view of the coolautomatic,

mg dev ce; and Fi 5 is a sectional view on the line 5-5 of i 4.

Referr1ng now to 1 1g. 1, an airplane englne of the Liberty type water cooled, as 1s usual is shown, six only, however, of the twelve cyllnders being shown. The crank case of the engine is indicated at 1, and the propeller shaft at 2. The turbo-compressor, deslgnated generally 3, comprises the turb ne caslng 4 and blower casing 5. The turblue in the casing 4 is designed to be operated by the waste gases from the engine, whlch enter through the ipe 4, through a su table port (not shown which registers w th the pipe 4', and escape through the pipe 6; the air for the blower wheel enters the mouth 5', is compressed, and is delivered into the delivery pipe 7. 1

The detailed structure of the wheels, nozzles and so on, of the turbo-compressor form 0 part of this invention, and are not shown ere.

From the delivery pipe 7 the heated air passes into a cooler, comprising a casing 8,

quately cooled.

A series of baffle plates 10 may be provided to cause a proper circulation of the hot air through the cooler casing. The air, after being cooled, passes into pipe 7 which leads it to the carbureters. 11 and 12, preferably of the duplex type, the carbureters be? Patented Feb. 22, 1921. I

for the escape of the in connected n the ordinary way to the inta e manifolds 13 and 14.

The cooler casing 8 is located on top of the fuselage 15, so as to be exposed to the atmos her1c air.

In ig. 3 a water cooled means for the air is shown, the other parts of the device remaining substantially the same.

The cooler, designated generall 16, comprises a casing 17, which is provi ed with a series of air and water passages, so arranged as to eflfect an exchange of heat between the of the outer passage through pipe 23, which is'connected to the radiator and water cooling system of the engine, the pipe 23 taking the comparatively cool water just as it leaves the radiator on its way to the water jackets of the engine.

After the water has passed through the cooler 16, it escapes through the pipe 24,

and is delivered to the several pipes 25,'

which lead it to the water several cylinders.

It will be evident that the surfaces of the air passages 20 will be kept cool b the water just on the other side of the wa ls defining such assages.

In 0th forms of the taken from the hot air is jackets of the invention, the heat delivered to the atmosphere, in the one case directly, and in the .other case to a mass of water which in turn,

through the radiator, delivers it to the atments of my invention, it should be under-' stood that the invention may be carried out in other ways, as falling within the scope of the appended claims.

I claim: r

"1. In combination, a water cooled internal combustion engine, an air compressor to supply compressed air for combustion in the engine, means to cool said air, and means to lead water from the cooling system of the engine to the cooling means, to act as the cooling agent therefor.

2. In combination, a water cooled internal combustion engine, a turbo-compressor operated by the waste gases from the engine to supply compressed air for combustion in the engine, means to cool the compressed air, and means to lead water from the cooling system of the engine to said cooling means to act as the cooling agent in the said cooling means.

In testimon whereof I aflix m signature.

lEARL H. SHER ONDY.

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