Helical Trochoidal Rotary Machines with Improved Solids Handling
AssigneeRotoliptic Technologies Incorporated
InventorsGreg John Montie, Peter Thomas Christopher Suke, Rogan David Milatz, Robert John Charles Pearson, Braden Adam Murphy
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Abstract
Improved solids handling in rotary positive displacement machines, where the machines are based on trochoidal geometry, can be achieved through the use of solids-handling features on the surface of the rotor and/or stator and/or by the use of modified seals mounted on the rotor or stator. In at least some embodiments the rotary machines comprise a helical rotor that undergoes planetary motion relative to a helical stator.
Claims21
A rotary machine comprising a stator and a rotor disposed within said stator,
- said rotor having a rotor helical profile, and a rotor axis, and having a hypotrochoidal shape at any cross-section transverse to said rotor axis, along at least a portion of a length of said rotor, said rotor configured to undergo planetary motion relative to said stator;
- and
- said stator having a stator helical profile, a stator axis, and having a shape at any cross-section transverse to said stator axis along at least a portion of a length of said stator that is an outer envelope formed when said hypotrochoidal shape of said rotor undergoes planetary motion;
- wherein said rotary machine is a multi-stage machine having a plurality of chambers between a fluid-facing surface of said rotor and a fluid-facing surface of said stator;
- and
- wherein said fluid-facing surface of said rotor and/or said fluid-facing surface of said stator comprise one or more solids-handling features.
A rotary machine comprising a stator and a rotor disposed within the stator,
- said rotor having a rotor axis and a helical profile, wherein said rotor has a rotor shape that is inwardly offset from a hypotrochoidal shape at any cross-section transverse to said rotor axis, along at least a portion of a length of said rotor, said rotor configured to undergo planetary motion relative to said stator;
- and
- said stator having a stator axis and a helical profile, wherein said stator has a stator shape at any cross-section transverse to said stator axis along at least a portion of a length of said stator that is an outer envelope formed when said rotor shape undergoes planetary motion;
- wherein said rotary machine is a multi-stage machine having a plurality of chambers between a fluid-facing surface of said rotor and a fluid-facing surface of said stator;
- and
- wherein said fluid-facing surface of said rotor and/or said fluid-facing surface of said stator comprise one or more solids-handling features.
Dependencies are inferred from the claim text.