US2078818A - Device for reclaiming used crankcase oils - Google Patents

Description

April 27, 1937. c. w. TROXELL 1 2,078,818

v DEVICE FOR RECLAIMING USED CRANKCASE OILS Filed Sept.' 4, 193 1 Y z7- Z0 pl M Patented Apr. 27, 1937 UNITED STATES NT OFFIQE DEVICE FOR RECLAIMING USED CRANKCASE OILS 2 Claims.

The invention relates to improvements means for reclaiming used crank case oils.

An object of my invention is to re-claim the used crank case oil by the use of acidulated clay.

Another object of my invention is to provide a device that will re-claim used crank case oils by heating the oil to the proper temperature thereby separating the volatile non-lubricating elements from the lubricating oils without cracking or injuring the lubricating oils.

A still further object of my invention is to provide a device for re-claiming used crank case oil that is compact, simple in construction, economical to operate and efficient in its operation.

With the foregoing and other equally important objects and advantages in view, the invention resides in the certain new and useful combination, construction and arrangement of parts, as will be hereinafter more fully described, set forth in the appended claims, and illustrated in the accompanying drawing, in which:

The figure is a vertical section through an embodiment of the improved means.

Referring now to the drawing, the embodiment of the invention, as is exemplified therein, is comprised in a cylindrically constructed housing I, having a convex strainer 2, laterally disposed near the upper extremity of the housing I. There are right angularly disposed flanges 3 and 4, supporting the strainer 2, at its inner and outer edges as shown. A tubular member 5, acting as a filling means for the device projects through the top of the housing I, and is shown closed at its upper end by a threaded cover 6. The lower end of the tube 5, supports the flanges 3, which in turn supports the strainer 2. There is a conical shaped deflector I, supportingly attached to the tubular member 8, by the angularly disposed brackets 9. A cone-shaped plate I0, smaller in diameter than the inside of the housing I, having an upwardly extending retaining flange in which a plurality of apertures II, are arranged, encircles the tubular member 8, and another coneshaped plate I2, having the tubular member 8, as

an outlet in its apex, fastened at the circumfer l6, designates a cone-.

ly disposed for engaging the inner wall of the housing i, to form an oil chamber ll, in combination with the perforated plate I9, equipped with apertures 22, and joined at 26 and 2!, as shown. There is a screen 23, fastened to the plate IS], with screws 2Q. These parts I9 and 23, rest on a filter paper or fabric 26, and the port I8, is sealed by the paper 25, resting on the circular support 28, which has oil passages 27, and is securely attached to the convex bottom plate 28, which acts as a trap. There are attaching bolts 30, fastened on one end to the housing I, supporting the cross brace 3|, by means of threaded nuts. The brace 3i, equipped with the flanged clamping screw 32, holds the concave bottom plate and its assembly in a fixed position.

The extreme top of the housing I, is provided with'a vapor outlet tube 33, while the drain tube 34, leads from the oil chamber ll. Both the vapor outlet and drain tubes 33 and 34, respectively, are

provided with shut-off cocks or valves as shown. The vapor outlet tube 33, terminates into a tubular spiral condenser coil 36, exhausting at 37, enclosed in a cylindrically shaped casing 35. This casing 35, acts as a cooling means when filled with cold water or the like for the coil 36, and has an inlet and outlet 38, and 39, respectively. The main housing I, has an air inlet Ml, to allow for pressureto be applied to the device.

In operation a cloth or filter paper 26, with a port cut in the center to leave the oil passage I8, unobstructed, is placed over the flanges of the concave bottom plate 28. This paper 26, also forms a gasket between the plate l9, and the flanges 29, and rests against the. screen 23, fastened to plate I6, byscrews 24. The entire assembly is brought into a secure position by adjusting the screw 32, on the cross brace 3|, held by the attaching bolts 36.

By removing the screw cap 6, the crank case oil may be poured into the container I, until the oil level reaches a point immediately below the clay container Iii. The clay is placed onto the cone shaped container I6, through the tube 5, and as the clay comes in contact with the deflector I, the clay will be uniformly distributed onto the container I0. The cap 6, is then placed into position. The valve in the vapor outlet tube 33, is opened. While the valve in the outlet tube 34, is closed.

The heating element, not shown, in the cylindrical chamber I4, made operative will cause the oil to rise in temperature thereby expanding and the oil will overflow through the tubular member 8, and over the clay on the container I0, causing a mixing of clay with the oil. This mixture of clay and oil will drain off of the container I0, through holes l l, and through the holes I3, on the cone l 2, reaching the extreme bottom of the container l, thereby completing circulation. This operation of mixing the clay with the oil causes a foaming of the oil. The foam rising and contacting the screen 2, will cause the bubbles to break, leaving only the gases to reach the condenser coil 35, through the tube 33, and preventing any of the actual oil from entering the condenser coil When the oil has reached the desired temperature below the cracking point of the oil it is ready to be filtered. The heating element is made inoperative. The valve in the tube 33, is closed. The valve in the drain tube 34, is opened. Air pressure is applied at the inlet 40. This pressure breaks the paper 25, in the outlet l8, allowing the oil to pass through the ports 21, in the member 29, to the concave bottom plate 28. When the trap formed by the plate 23, is filled the oil is forced by means of the air pressure entering at 653, through the filter paper 26, the screen 23, and the perforated plate 59, into the oil chamber H, where it flows by gravity through the outlet 3'3, and the lower spirals of the coil 36, through the outlet port 31.

In the chosen embodiments of my invention exemplified by the accompanying drawing, there are present certain novel refinements and improvements not heretofore disclosed in the prior art and which will be hereinafter more fully referred to and specifically pointed out in the appended claims.

Although I have shown and described a particular construction of my device it is understood that I can make such changes as I may deem necessary without departing from the spirit of the invention.

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

1. A device of the character described comprising a container provided with an inlet and outlet port, an oil reservoir disposed at the bottom of said container, said reservoir equipped with a ver tical tubular overflow opening into said container, an annular clay receptacle suspended from said tubular overflow and equipped with a plurality of ports in its upstanding peripheral plate, a heating element enclosure suspended in said oil reservoir, temporary fragile sealing means for retaining the oil in said reservoir until broken by air pressure in the reservoir, a filtering chamber adjacent the bottom of said reservoir, filtering means separating said filtering chamber into two compartments allowing the oil to fiow from the lower to the upper compartment when the sealing means is broken, a condenser coil leading from a vapor outlet in the container disposed for engagement with a cooling arrangement with means for allowing only the gases to pass to the condenser coil, and an inlet at the top of the container to allow pressure to be applied to the inside of the container thereby breaking the seal and permitting the oil to be forced downward from the oil reservoir through filtering means to the drain.

2. A device of the character described comprising a container provided with an inlet and outlet port, an oil reservoir disposed at the bottom of said container, said reservoir equipped with a vertical tubular overflow opening into said container, an annular clay receptacle suspended from said tubular overflow and equipped with a plurality of ports in its upstanding peripheral plate, a heating element enclosure suspended in said oil reservoir, temporary fragile sealing means for retaining the oil in said reservoir until broken by lower to the upper compartment when the sealing means is broken, a condenser coil leading from a vapor outlet in the container disposed for engagement with a cooling arrangement with means for allowing only the gases to pass to the condenser coil, an inlet at the top of the container to allow pressure to be applied to the inside of the container thereby breaking the seal and permitting the oil to be forced downward from the oil reservoir through filtering means to the drain, and a removable clamping arrangement that will allow replacing of the seal and the filtering means, and removing the sludge from the filtering chamber.

CLARENCE WILLIAM TROXELL.

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