US764515A - Oil-separator for rotary refrigerating appliances. - Google Patents

Description

No. 764,515. PATENTED JULY 5, 1904. M. A. AUDIFFREN.

OIL SEPARATOR FOR ROTARY REFRIGERATING APPLIANCES.

APPLICATION FILED MAR. 29. 1904.

A'TTORA/Eff.

Patented July 5, 1904.

PATENT OFFICE.

MARCEL ANTOINE AUDIFFRFJN, OF GRASSE, FRANCE.

OlL-SEPAHATOR FOR ROTARY REFRIGERATING APPLIANCES.

SPECIFICATION forming part of Letters Patent No. 764:,515, dated July 5, 1904.

Application filed March 29, 1904:. Serial No. 200,640. (No model.)

To (rZZ whom it may concern.-

, Be it known that I, MARCEL ANTOINE AUDIE- EREN, teacher at the Petit Sminaire of Grasse, Department of Alpes- Maritimes, France, have invented an Oil-Separator for Rotary Refrigerating Appliances, of which the following is a specification.

Rotatory refrigerator appliances composed of two chambers, one of which contains a liquid, such as sulfurous acid, liquefied by com-f pression and which subsequently vaporizes in the other chamber, producing a fall of temperature, present the following defect: Sulfurous anhydrid, which was depended upon for the lubrication of the moving parts, only possesses the lubricating properties which are generally accorded to it to an insuflicient extent. INhen the load reaches certain limits, it is absolutely neeessary,in order to give a suitable life to the apparatus, to introduce into it another lubricant, such as mineral oil. As, however, this latter partially dissolves in sulfurous anhydrid, it passes speedily from the condenser to the refrigerator, where it causes great perturbation, and finally the condenser is deprived of all lubricant.

This invention relates to an oil-separator, serving to insure perfect lubrication of the moving parts which appliances of this kind comprise.

I will now describe the invention with reference to the accompanying drawings, in which Figure 1 shows in longitudinal section a rotatory refrigerator in accordance with the invention. Fig. 2 is a section on the line 2 2 of Fig. 1.

1n the right-hand compartment A, Fig. 1, is contained the ordinary mechanism of a rotatory refrigerator, which is described only in in order to facilitate the understanding of the oil-separator, which alone forms the subject of the invention and which is entirely contained in the left-hand compartment B.

The appliance comprises, broadly, two her- ..metically-closed vessels, of whichA serves as condenser and B as'refrigerator, the two beingconneeted by a pipe D. The condenser A is rigidly connected with two disks E F,

5 serving as bearings for a shaft G, maintained fixedby a mass H, suspended from a frame keyed upon the said shaft. To the disk E is attached a compressor I, communicating with the refrigerator B by means of the pipe J, connected to the pipe D. This latter is continned within the refrigerator and serves as supportfora box K, suspended by the intermediary of a'pivoted supporting-stem L, engaged by a collar M upon the extremity of the pipe D. This latter communicates with a cylindrical chamber m, formed in the collar M, and orifices Z, formed in the pivoted supporting-stem L. A small pipe 1: enters the box K. This latter is maintained stable by means of a mass N.

The refrigerator B comprises upon its inner periphery a groove I), opposite to which is arranged a scraper 0 above a conduit 0, connected to the lower part of the box K.

Like the refrigerator B the condenser A has a groove a, in front of which terminates a pipe of small section (Z, the other extremity of which opens into the refrigerator B. The two vessels are suitably journaled and actuated by the shaft P. They are immersed in suitable troughs Q and R, the trough Q containing the refrigerating liquid of the condenser and the trough R containing water or uncongealable liquid to be cooled.

The operation is as follows: The shaft P, So which is driven either by hand or by means of a motor, displaces the whole apparatus composed of the condenser A and the refrigerator B. The disks E F, which serve as bearings for the shaft G, carry with them in their ro- 8 5 tation the compressor 1, which is rigid with one of them. Owing to the mass H, suspended from the frame keyed upon the shaft G, this latter remains stationary and permits the piston of the compressor to effect its stroke in the cylinder and suck the gas of the vessel B in order to condense it in the vessel A. Owing to the rotation imparted to the apparatus, the liquid contained in the refrigorator is projected against the walls of this latter, and more particularly in the groove 5, where a certain quantity of mingled liquid and oil finds its passage obstructed by the scraper 0, which causes it to fall into the box or oil-separator K. By virtue of the difier- 0 ence of the densities of the liquids and owing to the condition of repose of the box the refrigerating liquid occupies the bottom, rises to the level :0, and flows through the pipe is. The separated oil forms a quiet zone, which extends from the level a," to the level (0. When the height of this stratum exceeds the line 00, the oil is sucked with the gas, passing through the orifices Z, the chamber m, and the pipe I) and returned to the vessel A. The liquid regenerated in A mixes with the lubricating oil contained in the condenser and reaches the bottom of the groove (0, from which, owing to the differences of pressure, which are about four atmospheres in A and one atmosphere in B, it returns to the refrigerator through the pipe cl, the section of which should be such that it will only permit of the passage of the necessary quantity of refrigerating liquid. If this quantity is less than that which thesection should permit to pass, it is oil, which then passes through the pipe d, completely obturating it until a fresh quantity of refrigerating liquid has accumulated in the groove a. It is this oil and still more that which the refrigerating liquid carries with it by dissolution that should be conducted from the vessel B back to the vessel A, and this result is obtained with the arrangement described above.

When the velocity imparted to the apparatus is insuflicient for maintaining the liquid in the groove 6, a spiral blade S, arranged at one side of the refrigerator, collects this mixture and conducts it in rotating into the oilseparator box K.

What I claim, and desire to secure by Letters Patent of the United States, is

1. A rotary refrigerating appliance, comprising a closed condenser and a refrigerator, a pump and an oil-separator within said closed condenser and refrigerator respectively, piping connecting the refrigerator and condenser, and means for rotating the condenser and refrigerator.

2. A rotary refrigerating appliance, comprising a closed condenser and a refrigerator and means for rotating them, an oil-separator within the refrigerator and a pump within the condenser and piping from the separator to the pump.

3. A refrigerating appliance, comprising a closed condenser and a refrigerator, a pipe connecting them and extending into the refrigerator as a hollow shaft, an oil-separator hung on said shaft and a pump within the condenser.

4. A refrigerating appliance, comprising a closed condenser and a refrigerator and means to rotate them, an oil-separator freely hung within the refrigerator, a pump, and piping connecting the refrigerator and condenser.

5. A refrigerating appliance, comprising a closed condenser and a refrigerator and means to rotate them, a pump within the condenser adapted to be operated by its rotation, and an oil-separator hung within the refrigerator, a groove in the periphery of the refrigerator, and a scraper fitting therein.

6. A refrigerating apparatus, having a rotary closed refrigerator, an oil-separator hung within so as to maintain its position during the rotation of the refrigerator. Y

7. A refrigerating apparatus, having a rotary closed refrigerator, an oil-separator hung within so as to maintain its position through the rotation of the refrigerator, a condenser, a conduit from the condenser to the upper part of the separator, and an outlet of lower level from the separator to the refrigerator.

8. A refrigerating apparatus, having a rotary closed refrigerator, an oil-separator hung within so as to maintain its position through the rotation of the refrigerator, a condenser, a conduit from the condenser to the upper part of the separator, and an outlet of lower level from the separator to the refrigerator, in combination with a pump within the condenser actuated by the rotation of said condenser and attached to said conduit.

9. A rotary closed condenser for refrigerating apparatus, comprising a hollow shaft, an oil-separator, hung on said shaft, said separator consisting of a supporting-stem and conduit communicating between its upper portion and the hollow shaft, a vessel supported by said stem, an outlet from said vessel to the refrigerator and means to maintain the separator stationary during the rotation of the inclosing vessel.

10. A rotary refrigerating vessel, a stationary oil-separator therein, a pipe leading from the upper portion thereof communicating with a pumping means, an outlet from said separator below the aforesaid pipe, and a pipe depending within the separator from said outlet.

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

MARCEL ANTOINE AUDIFFREN.

Witnesses: PIERRE CoMBE,

MARIUs M. BOSTIDORE.

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