Title:
CRYOGENIC SUBMERGED PUMP FOR LNG, LIGHT HYDROCARBON AND OTHER ELECTRICALLY NON-CONDUCTING AND NON-CORROSIVE FLUIDS
Document Type and Number:
WIPO Patent Application WO/2015/081314
Kind Code:
A3
Abstract:
A cryogenic submerged multi-stage pump assembly includes a vertically oriented pump shaft. A permanent magnet electrical motor includes a rotor attached to the pump shaft and a stator disposed about the rotor. A first-stage impeller assembly includes a first impeller attached to the pump shaft, the first impeller configured to move a cryogenic fluid from a first impeller inlet to a first impeller outlet when the pump shaft is rotated by the electric motor. A second-stage impeller assembly includes a second impeller attached to the pump shaft, the second impeller configured to move the cryogenic fluid from a first impeller housing to a second impeller inlet and then to a second impeller outlet when the pump shaft is rotated by the electric motor. The first and a second impeller housing are disposed about the first and second impellers and configured to channel the cryogenic fluid.
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Inventors:
CHALMERS DENNIS W (US)
BOTROUS MINA (US)
DOKHALE MUGDHA (US)
RUIZ ELIDIO (US)
GEIPEL MARK (US)
BOTROUS MINA (US)
DOKHALE MUGDHA (US)
RUIZ ELIDIO (US)
GEIPEL MARK (US)
Application Number:
PCT/US2014/067792
Publication Date:
November 12, 2015
Filing Date:
November 27, 2014
Export Citation:
Assignee:
CHALMERS DENNIS W (US)
BOTROUS MINA (US)
DOKHALE MUGDHA (US)
RUIZ ELIDIO (US)
GEIPEL MARK (US)
BOTROUS MINA (US)
DOKHALE MUGDHA (US)
RUIZ ELIDIO (US)
GEIPEL MARK (US)
International Classes:
F04D13/08
Foreign References:
US3764236A | 1973-10-09 | |||
US4506181A | 1985-03-19 | |||
US6183219B1 | 2001-02-06 | |||
US6225719B1 | 2001-05-01 | |||
US3981628A | 1976-09-21 | |||
GB2129494A | 1984-05-16 |
Other References:
See also references of EP 3074634A4
Attorney, Agent or Firm:
MARTINO, Marc G. (Fourth Floor433 N. Camden Driv, Beverly Hills California, US)
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