In accordance with a known method, oil bubbles are produced from gas impurities dissolved in processing liquid oil. Oil is then delivered to a vacuuming volume. After that, bubbles are burst up and gas fraction of impurities is separated from oil and then removed; oil is pumped out.

In accordance with the newly-patented technology, oil bubbles are kneaded under a dripping oil film. To obtain this result, oil is delivered to processing by a stream; oil film is produced by series of consequent injections. The stream is injected in such a way that the dripping oil flow starts swirling. At the same time, areas of interaction with the vacuuming volume are formed under the dripping oil surface.

Traditional devices for liquid oil degassing comprise a vacuumed housing with a bleed connected with a vacuum pump and an inlet port to supply processing oil, with the housing and inlet port located in the upper part of the housing; an outlet port to drain purified oil in the lower part of the housing; an oil-catcher in the upper part of the housing; an oil in-take tank; an oil flow devider and gas bleeders. The oil in-take tank is a vertically-elongated cylinder, crossing through the oil-catcher, with passing passages made on the wall of the said cylinder over its height below the crossing line with a plane of the oil-catcher. Gas bleeders are located in such a way that their upper ends pass through the oil-catcher, while their lower ends are placed in the lower part of the housing.

Unlike previous designs, a unit to supply treating oil has been added. This unit is located in the oil tank upper base and allows to inject oil stream tangentially to the oil tank inner wall. The oil flow devider is fixed in the housing at a level (or below) of the oil in-take tank lower base and has radial slots. There is a gap between the tank edge and the wall of the housing. The oil-catcher comprises two circle sector-like units fixed in the center. The units are placed along the common axis at a certain distance from each other; the distance between them is chosen in such a way that sectors of one unit overlap a clearance between the sectors of the other unit.

In another modification of the device, a unit for processing oil supply is made in the form of a pipe. The inlet end of the pipe designed for processing oil delivery is rigidly fixed in the oil tank upper base. The outlet end of the pipe is bent inside the oil tank and allows to inject oil stream tangentially to the oil tank inner wall.

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