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A cryogenic liquefied pump system which includes a pump having a drive motor, bearings, a drive shaft, and an impeller adapted to be disposed in a vessel storing a cryogenic liquid. An outer insulating tank is mounted in the vessel and an inner insulating tank is mounted inside the outer insulating

A cryogenic liquefied pump system which includes a pump having a drive motor, bearings, a drive shaft, and an impeller adapted to be disposed in a vessel storing a cryogenic liquid. An outer insulating tank is mounted in the vessel and an inner insulating tank is mounted inside the outer insulating tank, with a vacuum layer being interposed between the inner and outer insulating tanks. An inner side of the inner insulated tank, in which the motor and bearings are arranged, is maintained at a room temperature, with a tip portion of the inner insulating tank being formed into an outer case extending into a cryogenic region outside of the outer insulated tank.

대표청구항 ▼

A cryogenic liquefied pump system adapted to be disposed in a vessel storing a cryogenic liquid, the system comprising: an outer insulating tank adapted to be mounted in the vessel, an inner insulating tank disposed inside the outer insulating tank, said inner and outer insulating tanks being dimens

A cryogenic liquefied pump system adapted to be disposed in a vessel storing a cryogenic liquid, the system comprising: an outer insulating tank adapted to be mounted in the vessel, an inner insulating tank disposed inside the outer insulating tank, said inner and outer insulating tanks being dimensioned such that a space is provided between an outer peripheral surface of the inner insulating tank and an inner peripheral surface of the outer insulating tank, means for enabling an evacuation of the space between the inner and outer insulating tanks so as to form a room temperature region in an interior of the inner insulating tank, a pump means for discharging the cryogenic liquid from the vessel, the pump means including drive motor means having a driving shaft means, an impeller means mounted on said driving shaft means, and bearing means for rotatably supporting said drive shaft means, said inner insulating tank means including an outer case portion disposed in a cryogenic region of the vessel outside of the outer insulating tank, means are provided for mounting said pump means such that said drive motor and said bearing means are disposed in the room temperature region of the inner insulating tank, and wherein said impeller means is disposed in the outer case portion.