Dual Axis Rotor
AssigneeExponential Technologies, Inc.
InventorsAlejandro Juan, Curtis Patterson, Erik Farrell, Stephen F. Scott, Kyle Fiolka
Life of this patent
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Abstract
This disclosure concerns an advanced nutating positive displacement device having a high power to mass ratio and low production cost. This device in one example forms an exemplary pump as will be discussed in detail. The examples disclosed herein are of the rotary positive displacement type, but in a class by themselves. The devices are formed by a nutating rotor having a face comprising lobes and valleys, and a fixed stator also having a face with lobes and valleys. The face of the rotor opposes and cooperates with the face of the stator. The opposing faces define chambers that change volume with rotation of the rotor.
Claims43
A fluid flow apparatus comprising:
- a. a housing having a frusta spherical inner surface;
- b. wherein the housing is fixed in space;
- c. a stator having a center axis, and a front face comprising lobes and valleys;
- d. the stator fixed to the housing;
- e. a rotor having an axis, a front face comprising lobes and valleys, and a frusta spherical radially outward surface;
- f. wherein the rotor nutates about the stator;
- g. wherein the axis of the stator intersects the axis of the rotor;
- h. wherein the axis of the stator is offset from the axis of the rotor by an alpha (α) angle;
- i. the rotor having a front face with lobes and valleys configured to interoperate with the lobes and valleys of the stator;
- and
- j. wherein the lobes and valleys of the stator are substantially in fluid tight seal to the lobes and valleys of the rotor at least at two points during rotation/precession of the rotor.
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A nutating positive displacement device comprising:
- a. a stator having lobes, valleys, and an axis;
- b. a rotor with equal number of mounds and valleys as the stator,
- c. wherein the rotor follows a precessing motion with respect to the stator such that a central axis of the rotor is at a constant angle to the axis of the stator, and the rotor's axis rotates about the stator axis,
- d. wherein the contoured seal faces of the mounds and valleys of the stator and rotor are formed in such a way as to provide a predetermined fluid seal gap between said faces to provide sealing.
Dependencies are inferred from the claim text.