Abstract: A method for producing a vacuum, which includes feeding an ejecting vaporous medium into the gas ejector, evacuating an ejected gaseous medium by the ejecting vaporous medium, mixing of the vaporous and gaseous mediums and forming a mixture of the two, evacuating this mixture by a liquid-gas ejector whose nozzle is fed by a liquid ejecting medium, condensing the vaporous ejecting medium and its dissolving in the liquid ejecting medium in the liquid-gas ejector, forming a liquid-gas mixture and subsequent separating the liquid-gas mixture into compressed gas and a liquid phase which is used further as the liquid ejecting medium of the liquid-gas ejector. Substances which are reciprocally soluble in each other or mixtures of such substances are used as the vaporous and liquid ejecting mediums.

Abstract: A method for producing a vacuum, which includes feeding an ejecting vaporous medium into the gas ejector, evacuating an ejected gaseous medium by the ejecting vaporous medium, mixing of the vaporous and gaseous mediums and forming a mixture of the two, evacuating this mixture by a liquid-gas ejector whose nozzle is fed by a liquid ejecting medium, condensing the vaporous ejecting medium and its dissolving in the liquid ejecting medium in the liquid-gas ejector, forming a liquid-gas mixture and subsequent separating the liquid-gas mixture into compressed gas and a liquid phase which is used further as the liquid ejecting medium of the liquid-gas ejector. Substances which are reciprocally soluble in each other or mixtures of such substances are used as the vaporous and liquid ejecting mediums.

Abstract: A method for producing a vacuum, which includes feeding an ejecting vaporous medium into the gas ejector, evacuating an ejected gaseous medium by the ejecting vaporous medium, mixing of the vaporous and gaseous mediums and forming a mixture of the two, evacuating this mixture by a liquid-gas ejector, forming a liquid-gas mixture and subsequent separating the liquid-gas mixture into compressed gas and a liquid ejecting medium of the liquid-gas ejector. Substances which are reciprocally soluble in each other or mixtures of such substances are used as the vaporous and liquid ejecting mediums. A pumping-ejection system implementing the method includes a gas ejector, a liquid-gas ejector, a pump, a separator, a pressure pipeline and a vaporizing device for transforming a portion of the liquid ejecting medium into the vaporous state.

Abstract: The invention pertains to the field of jet technology and relates to an operating process which essentially includes feeding of a gas-liquid flow from an ejector into a chamber for supersonic flow conversion, where the gas-liquid flow is exposed to an abrupt expansion and, because of a reduction to the gas-liquid flow's density, a sonic or supersonic flow regime is provided. Further, the gas-liquid flow is slowed down by a pressure jump. The invention also relates to a device for realizing this process which essentially includes a pumping-ejector unit furnished with a chamber for supersonic flow conversion. The inlet of the chamber is connected to the ejector's outlet, the chamber's outlet is connected to a separator. The chamber for supersonic flow conversion defines a shaped cavity, diverging stepwise in the flow direction. The described operating process and related pumping-ejector unit ensures more reliable operation.

Abstract: The present invention pertains to the field of jet technology and essentially relates to a pumping-ejection apparatus including a vacuum-producing device. Further, the apparatus is equipped with a condenser, a jet pump and an additional vacuum-producing device which has a boosting liquid-gas ejector, an outlet separator, an additional pump and an additional condenser. The evacuated medium inlet of the jet pump is connected to the separator, the outlet of the jet pump is connected to the suction side of the pump, the inlet of the jet pump for motive medium is connected to the discharge side of the pump. The inlet of the condenser is connected to the ejector's outlet, outlet of the condenser is connected to the separator. The gas inlet of the boosting ejector is connected to the pipe for discharge of compressed gas, the outlet of the boosting ejector is connected to the inlet of the additional condenser.

Abstract: The invention relates to the field of jet technology, primarily to apparatus for evacuation and gaseous mediums' compression. Apparatus is furnished by liquid-gas ejector, pump, separator and condenser. Ejector contains receiving chamber, which has a space in the zone of inlet part of mixing chamber for collecting of outlying part of liquid working medium's flow and its discharge through the drain pipe, which can be connected to separator or to the suction side of pump. The introduced design of installation allows to increase its efficiency factor.

Abstract: The invention pertains to the field of jet technology and essentially relates to a method of operation including discharge of a motive liquid from a nozzle of a liquid-gas ejector, mixing of the motive liquid with an evacuated gaseous medium and simultaneous compression of the gaseous medium, collecting of the sprayed part of the motive liquid flow with further discharge of this collected liquid from the ejector by gravity or using a pumping action. This operational method for a liquid-gas ejector provides an increased efficiency factor for the ejector.