Single chamber multiple independent contour rotary machine
The disclosure provides rotary machines that include, in one embodiment, a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have a first hub disposed thereon with a plurality of cavities. At least one contour is slidably received into an arcuate cavity in an exterior surface of the hub. The contour has a convex outer surface that cooperates with an inwardly facing curved surface of a housing to form a working volume.
1. A rotary machine, comprising:
a) a stationary housing defining an inwardly facing continuously curved surface;
b) a central shaft rotatably disposed within the stationary housing defining a central axis of rotation A, the central shaft having a first end and a second end attached to front and rear rotating discs, respectively;
c) at least one swinging contour assembly defined by a pair of opposed outwardly facing front and rear surfaces that are connected by convex inwardly facing and outwardly facing surfaces, the convex inwardly facing surface of the contour assembly facing the central axis A, the convex outwardly facing surface of the contour facing the inwardly facing continuously curved surface of the stationary housing, the convex outwardly facing surface of the contour, the front and rear rotating discs and the inwardly facing continuous curved surface of the stationary housing cooperating to form a working volume, said at least one swinging contour assembly further including at least one seal to help seal said working volume, the rotatable shaft and front and rear rotating discs being configured to rotate with respect to the stationary housing; and
d) at least one swing arm attached to said at least one swinging contour assembly, said at least one swing arm being pivotally attached to at least one of said front and rear rotating discs, said at least one swing arm being configured and arranged to constrain the motion of said at least one swinging contour assembly to maintain a predetermined spacing between said at least one swinging contour assembly and said inwardly facing continuously curved surface of said stationary housing independently of action of said at least one seal.
2. The rotary machine of claim 1 , wherein said at least one swing arm includes at least one planet gear operably coupled thereto, said at least one planet gear being configured to mesh with at least one sun gear.
3. The rotary machine of claim 2 , wherein said at least one sun gear is stationary with respect to said stationary housing.
4. The rotary machine of claim 1 , wherein said at least one swing arm includes two swing arms, each of said two swing arms being attached to respective front and rear sides of said at least one swinging contour assembly, each of said two swing arms being pivotally connected to said front and rear rotating discs, respectively.
5. The rotary machine of claim 4 , wherein said at least one swinging contour assembly includes two swinging contour assemblies.
6. The rotary machine of claim 5 , wherein components of the rotary machine further define at least one auxiliary variable volume that is located between adjacent end portions of said contour assemblies.
7. The rotary machine of claim 6 , wherein the working volume is separated from the at least one auxiliary variable volume by at least one seal.
8. The rotary machine of claim 7 , wherein a working volume is can be defined with respect to each of said two swinging contour assemblies, and further wherein the gases of a first working volume corresponding to a first of the two swinging contour assemblies cannot directly communicate with a second working volume corresponding to a second of the two swinging contour assemblies due to the presence of the at least one auxiliary variable volume being disposed between the first working volume and the second working volume.
9. The rotary machine of claim 4 , wherein said at least one swinging contour assembly includes three swinging contour assemblies.
10. The rotary machine of claim 1 , wherein the inwardly facing continuously curved surface defines at least one passage therethrough that includes a fuel injector disposed therein for injecting fuel into the working volume.
11. The rotary machine of claim 10 , wherein the rotary machine is a compression ignition engine.
12. The rotary machine of claim 10 , wherein the inwardly facing continuously curved surface defines at least one further passage therethrough that includes a spark plug disposed therein, and further wherein the rotary machine is a spark ignition engine.
13. The rotary machine of claim 1 , wherein front and rear discs define passageways therethrough for accommodating flow of at least one of cooling fluid or a lubricating fluid.
14. The rotary machine of claim 1 , wherein said at least one swinging contour assembly is configured to oscillate about an axis B that is parallel to and radially outwardly disposed from the central axis A, wherein the axis B of said at least one swinging contour assembly orbits about the central axis A when the rotary machine is operating.
15. The rotary machine of claim 14 , wherein oscillatory motion of said at least one swinging contour assembly combined with the rotation of said at least one swinging contour assembly about the central axis A cooperate to form a compound motion.
16. The rotary machine of claim 1 , wherein the working volume associated with the at least one swinging contour assembly increases and decreases in volume twice per revolution of the rotatable shaft.
17. The rotary machine of claim 1 , wherein the stationary housing is affixed to a foundation that also supports a plurality of bearings that in turn rotatably supports the rotatable shaft about the axis A.
18. The rotary machine of claim 1 , wherein the inwardly facing continuously curved surface is configured to contact seals attached to said at least one swinging contour assembly.
19. The rotary machine of claim 1 , wherein the inwardly facing continuously curved surface includes a plurality of ports defined therethrough to permit the passage of gases through the ports as the rotary machine operates.
20. The rotary machine of claim 1 , wherein the stationary housing includes two substantially parallel side plates oriented perpendicularly with respect to the axis A that permit the rotatable shaft to pass therethrough.
21. The rotary machine of claim 1 , wherein at least one of the side plates and stationary housing include seals configured to withstand pressurization and channels for transporting at least one of a lubricant and a coolant.
22. The rotary machine of claim 1 , wherein said at least one swing arm includes at least one cam follower coupled thereto, said at least one cam follower being configured and arranged to follow at least one cam track.
23. The rotary machine of claim 22 , wherein said at least one cam follower includes at least one roller, said at least one roller being configured to roll along said at least one cam track.
24. The rotary machine of claim 22 , wherein said at least one cam follower includes at least one wear pad, said at least one wear pad being configured to slide along said at least one cam track.