Above the motor bellows expansion member for a submersible pump

Details Above the motor bellows expansion member for a submersible pump Above the motor bellows expansion member for a submersible pump

F - Mech Eng,Light,Heat,Weapons

04

B

F04B 53/00 (2006.01) E21B 33/10 (2006.01) E21B 43/12 (2006.01) F04B 47/06 (2006.01) F04D 13/08 (2006.01)

Patent

CA 2455720

A bellows comprises a first fixed end, a second fixed end, a first collapsible section and a second collapsible section. The first collapsible section is in communication with the first fixed end and has a first cross-sectional area. The second collapsible section is in communication with the second fixed end and has a second cross-sectional area. A third collapsible section is between the first collapsible section and the second collapsible section. A first coupling member is between the first collapsible section and the third collapsible section. A second coupling member is between the second collapsible section and the third collapsible section. A volume within the bellows is varied by movement of the first coupling member and the second coupling member towards one of the first fixed end and the second fixed end.

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