CRYOGENIC PISTON PUMP Russian patent published in 2021 - IPC F04B37/00 

FIELD: cryogenic engineering.

SUBSTANCE: invention relates to the field of cryogenic engineering and can be used as part of gasification plants. Operating efficiency is achieved by the fact that a discharge valve is installed in the cylinder coaxially to the suction valve, and a chamber is fixed in which the winding of a linear asynchronous electric motor operating at cryogenic temperatures is mounted, and a cavity for the passage of cryogenic liquid is made, which is connected to the discharge valve and the cryogenic liquid supply pipeline to the consumer, and the pump plunger is made in the form of an electric motor rod, while the pump structure is fixed on the cryostat cover and placed in the suction cavity occupying the entire volume of the inner casing cryostat, in this case, the chamber is located in the steam zone of the suction cavity, and in addition, the pump is additionally equipped with a liquid level sensor installed at the bottom of the inner casing of the cryostat, and a valve installed on the cryogenic liquid supply pipeline.

EFFECT: invention makes it possible to increase the efficiency of the working cycle of the pump and simplify its design.

1 cl, 1 dwg