US1566919A - Refrigerating apparatus - Google Patents

Description

Dec. 22,1925- 1,566,919

' H. A. PARKYN HEFRIGERATING APPARATUS Filed July 1918 2 Sheets-Sheet 1 Dec. 22 1925. 1,566,919

H- A. PARKYN REFRIGERATING APPARATUS Filed y 1918 2 Sheets-Sheet 2 Patented Dec. 22, 1925.

UNITED STATES 1,566,919 PATENT OFFICE.

HERBERT A. PARKYN, OF CHICAGO, ILLINOIS, ASSIGNOR T0 LEoNAnn run? a" MOTOR COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF MAINE.

REFRIGERATING APPARATUS.

Application filed July 16, 1918. Serial No. 245,196.

To all whom it may concern:

Be it known that I, HERBERT A. PARKYN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvementin Refrigerating Apparatus,

of which the following is a specification.

My invention relates more particularly to improvements in refrigerating apparatus of the type employing a compressor for compressing the gasified refrigerant, such as ethyl chloride, or sulphur dioxide, after leaving the refrigerating, or expansion, coil; and condensing means in communication with the compressor for reducing the com- -pressed refrigerant to liquefied condition.

My primary object, is to provide by a novel, simple and economical arrangement, for the cooling of the compressed refrigerant, by the use of air alone, to place it in the desired condition for introduction into the refrigerating coil, and other objects as will be manifest from the following description.

Referring to the accompanying drawings,.

Figure 1 is a view in elevation, partly sectional, and in part in the nature of a diagram, of a refrigerating system constructed in accordance with my invention; Figure 2 is a plan sectional view of the construction shown in Figure 1 taken at the line 22 on Fig. 1 and viewed in the direction of the arrows; and Figure 3, an enlarged view in sectional elevation, taken at'the line 3-3, on Figure 2, and viewed in the direction of the arrows.

The compressory or pump, of the particular apparatus illustrated, is represented at 4, this being of the so-called intermeshingl gears at the opposite side of the centers of the shafts 7 and 8, the outlet 11 communicating with a pipe 12 extending upwardly from one end of the casing 9. The compressor 4 is located within a compressor chamber 13 into which the gas compressed by the compressor 4 is discharged through the pipe 12, the chamber 13, in the case of the particular construction illustrated, containing a bath.

which extends outwardly from the casing 13 and is formed intermediate its ends into a coil 18, the opposite end of this pipe opening into the casing 13 below the level of the lubricating oil therein. The outlet of the compressor chamber 13 is represented at 19 and is provided with a screen-device 20 to aid in the' separation of the compressed refrigerant in gasified condition, from particles of lubricant which may bedischarged through the pipe 12. The outlet 19 connects with the condenser-structure, Which by preference is an open-work structure and more preferably is a coil represented at 21, this coil being'preferably of general rectangular-form as shown in Fig. 2 for housing therein the parts hereinafter described and preferably the coil 18. It is preferred that, instead of providing a single course from the outlet 19 to the end of the condenser, a multiple course be provided, such a course 'beingshown in the drawings wherein the outlet 19 is provided withva header 22 from which the two pipes 23 and 2A lead, these pipes being so disposed relative to each other and so bent as to provide preferably the single coil structure shown, with their discharge ends 25 and 26 connected by a header 27, with a pipe 28 which connects with the refrigerator coil 29, the pipe 28, containing therein an expansion valve 30 of any desirable construction and the end of the coil 29 opposite that connected with the pipe 28 being connected with a pipe 31 which extends upwardly and communicates with the intake 10 of the compressor 4.

The pump shown is of the so-called directdrive type, the same being driven by the direct connection between a shaft 32 of an electric motor represented at- 33, and the shaft 7 the shaft 32 extending through one of the spaces between the turns of the coil 21 and through the center of the coil 18. In accordance with the preferred embodiment of my invention, the compressor chamber 13 @and coil 18 are located Within the confines of the coil 21 and the shaft 32 is provided with a fan 34, this fan being also located within the confines of the coil 21 and so disposed that, when driven, it will cause air to circulate through the spaces between the turns of the coil 21 and against the compres- 4 sor chamber 13 and coil 18, for producing the desired cooling of the condenser coil, the

.. compressor chamber and the lubricating ,greatest efliciency from the fan. structure is represented in the drawings'at bath, without rendering necessary the use of any other cooling medium, such as water.

It is preferred that there be associated with the parts just described a structure which will operate to confine the air currents'created by the fan 34 for obtaining the Such a 35 and comprises the side-members 36 and top 37 forming an open-ended housing in which the coil 21, with the parts surrounded thereby, are housed, it being desirable that the sides of this housing contain openings 38 at intervals, especially when these sides extend close to the coil.

The parts of the apparatus just described may belocated at any desirable place, as,

. form as, for example, by providing the open-- for example, on the top of the refrigerator-.

chest where the apparatus is used in this connection.

If desired, the bottom 39 of the compressor-chamber 13 may be upwardly offset relative to the base portion 40 thereof as shown, to permit the portion 40 to be of open-work ings 41 therein which permits of the circulation of the air under the action of the fan 34, against the bottom 39 of the compressor-chamber and thus augments the cooling effect.

The use of a fan on the shaft 32 is particularly advantageous as the-arrangement is very simple and by reason of the direct- 1 drive of the rotary compressor, from the motor 33, the fan 34 is driven at such speed i that the desired cooling effect, to cause the apparatus to continuously operate under widely varying temperature conditions, may be produced, the fan in this particular arrangement illustrated, and which preferably is rotated in a'direction to cause the air to travel through the housing from its right hand end through its left hand end in Fig. l, and thence against the motor 33, not only serving to effect the cooling of the condenser, compressor, compressor-chamber and coil18, but also the motor 33, which is desirable as will be understood by those skilled in the art. I r

While I have illustrated and described a particular construction in which my invention is embodied, I do not wish to be understood as intendingto limit it thereto, as the same may be variously modified and altered without departing from the spirit of my invention, it being my intention to claim my invention as fully and completcly as the prior state of the art will permit.

What I claim as new and desire to secure by Letters Patent is- 1.- Ina refrigerating apparatus, the comthe comwhich the refrigerant compressed by the pump passes, a condenser for the compressed gas, a housing contammg an inletand an outlet for air and 1n which said condenser and member are located, and a fan on said shaft for causing air to pass through said housing.

3. In a refrigerating apparatus, the combination ofra rotary pump for compressing therewith, a motor directly connected with said shaft for driving it, a member into which the refrigerant compressed by the pump passes, a condenser for thecomthe gasified refrigerant, a shaft connected pressed gas, a housing containing an inlet and an outlet in its opposite ends and in which housing said condenser and member are located, and a fan on said shaft for causing air to pass through said housing, said containin openings in its sides.

4:. a refrigerating apparatus, the combination of a rotary pump for compressing the gasified refrigerant, a receptacle for oil,

ing it, a condenser for the gas compressed by said pump, a conduit opening into said receptacle and into the interior of said, pump for leading oil into the pump, and a fan on said shaft for causing air to ciraulate against said condenser and said conuit. 5. In "a refrigerating system, the com bination of a rotary pump for compressing a shaft connected with said pump, a motor directly connected with said shaft for drivthe gasified refrigerant, a body of oil, means above said body of oil for receiving the re frigerant compressed by the pump, means for conveying compressed refrigerant from the pump to said refrigerant receiving means, a shaft connected wlth said pump a motor directly connected with said shaft for drivin presse it, a condenser for the gas c0mby said pump, a conduit opening into said body of oil and into the interior of said pump for leading oil into the pump, and a fan on said shaft for causing air to circulate against said condenser, refrigerant receiving means and conduit.

6. In a refrigerating apparatus, the combination of a compressor for compressing the gasified refrigerant, a receptacle for oil, means for operating said compressor, a condenser for said compressor, a conduit opening into said receptacle and into the in terior of said compressor for leading oil into said compressor, and means for circulating cooling currents of air against said condenser and conduit.

7. In a refrigerating apparatus, the conr hination of a compressor for compressing the gasified refrigerant, a receptacle for oil, means for operating said compressor, a condenser for said compressor, a conduit opening into said receptacle and into the interior of said compressor for leading oil into said A compressor, and means for circulating cool-v bination of a compressor for compressing.

ing currents of air against said condenser, receptacle and conduit.

8. In a refrigerating apparatus, the comterior of said compressor for leading oil into said compressor, and means for circulating cooling currents of air against said condenser and conduit.

9. In a refrigerating apparatus, the combination of a compressor for compressing the gasilied refrigerant, a receptacle for oil and in which receptacle said compressor is located and into which said compressor discharges, means for operating said compressor, a condenser for said compressor, a conduit opening into said receptacle and into the interior of said compressor for leading oil into said compressor, and means for circulating cooling currents of air against said condenser, receptacle and conduit.

10. A refrigerating apparatus including a pump for the refrigerant, an air cooling conduit comnmnicatng with the pump discharge, an oil cooling conduit communicating with the pump, and a fan for circulating air'aliout said conduits.

11. A refrigerating apparatus including a pump for the refrigerant, a casing enclosing such pump and forming therewith a space adapted to contain oil and communicating with the pump interior, and an oil cooling conduit communicating with ,the said space in the casing and means for directing a cooling fluid about said conduit.

HERBERT A. PARKYN.

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