Pump

E - Fixed Constructions – 21 – B

Patent

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Details

E21B 43/12 (2006.01) F04C 2/16 (2006.01) F04C 11/00 (2006.01) F04C 13/00 (2006.01)

Patent

CA 2751727

A multistage pump (4) comprises: .cndot. a plurality of components (50, 60, 70, 80, 90, 100, 110) comprising a plurality of pre-assembled pump modules (70, 90, 110) including at least one twin screw pump module (1, 2); characterised in that the multistage pump (4) further comprises an elongate sleeve (41) for housing the components (50, 60, 70, 80, 90, 100, 110); and securing means (42a, 42b) attachable or engagable with a portion of the elongate sleeve (41), the securing means (42a, 42b) being operable to fixedly retain the components (50, 60, 70, 80, 90, 100, 110) within the sleeve (41).

L'invention porte sur une pompe à plusieurs étages (4), qui comprend : une pluralité de composants (50, 60, 70, 80, 90, 100, 110) comportant une pluralité de modules de pompe préassemblés (70, 90, 110) comprenant au moins un module de pompe à double vis (1, 2); laquelle pompe est caractérisée en ce que la pompe à plusieurs étages (4) comprend de plus un manchon allongé (41) destiné à loger les composants (50, 60, 70, 80, 90, 100, 110); et des moyens de fixation (42a, 42b) aptes à être fixés ou aptes à être mis en prise avec une partie du manchon allongé (41), les moyens de fixation (42a, 42b) étant aptes à fonctionner de façon à maintenir de façon fixe les composants (50, 60, 70, 80, 90, 100, 110) à l'intérieur du manchon (41).

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