Moineau stator

Details Moineau stator Moineau stator

F - Mech Eng,Light,Heat,Weapons

01

C

F01C 1/107 (2006.01) F04C 2/107 (2006.01) B21D 26/02 (2006.01)

Patent

CA 2412209

A Moineau stator includes a rigid support housing having walls able to resist pressure, torque, and axial loads experienced in its intended operating environment. A deformable lobed stator tube is supported within the support housing. The tube has an interior surface, an exterior surface, and lobes arranged in a configuration adapted to interact with a moineau rotor. The tube has walls that are sufficiently thin as to be subjected to elastic deformation in response to interfacial seal forces imposed by interference with the rotor. The tube is supported within the support housing, with pressure acting on the interior surface of the tube balanced with a substantially equal pressure acting on the exterior surface of the tube, such that the deformation of the tube-in response to pressure variations is limited while the wall of the tube remains compliant to facilitate the tube tracking movement of the rotor.

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