Rotary machine

#U.S. Pat. No. 6,758,188,, entitled “Continuous Torque Inverse Displacement Asymmetric Rotary Engine”, the disclosure of which is incorporated herein by reference in its entirety, discloses an Inverse Displacement Asymmetric Rotary (IDAR) engine. The engine includes an inner chamber wall, an outer chamber wall, and a movable contour. U.S. patent application Ser. No. 12/732,160,, filed Mar. 25, 2010,, which is also incorporated by reference herein in its entirety, presents improved embodiments vis-è-vis the embodiments of U.S. Pat. No. 6,758,188. The present disclosure provides significant improvements over these embodiments, as described herein.

#Some of the disclosed embodiments improve upon and add to embodiments described in U.S. patent application Ser. No. 13/868,359,, filed Apr. 23, 2013. In some aspects, the present disclosure provides the following improvements over the embodiments in that application:

#Lower friction and better working volume sealing can be achieved by using wheels with “frictionless” bearings and cam profiles to control the

#Accompanying the description are plural images illustrating the disclosed embodiments, which represent non-limiting, examples and in which:

#FIG. 1 illustrates an isometric view of an embodiment of a rotary machine in accordance with the disclosure;

#FIG. 2 illustrates a close up of contour wheels of the embodiment of FIG. 1;

#Referring to FIG. 1, components are illustrated which form the disclosed embodiments. In addition, a coordinate system is illustrated which can be utilized for discussing the disclosed embodiments. This coordinate system is a cylindrical, three dimensional system, having axial (A), radial (R) and circumferential (C) axes. As illustrated in the Figure, a rotatable shaft 1 is held by a pair of front 2a, and rear 2b, radial “frictionless”, oil film or plain bearings. The bearings are supported by a pair of front 3a, and rear 3b, stationary case end plates which are attached to a ring shaped case 5.

#The rotating shaft 1 is affixed to, or has integrated in it, a cylindrical-like shaped structure 4 or “island”. The non-round shape surface, is devised through proprietary computer simulation techniques. As illustrated in FIG. 1, mechanically fastened to or integrated to the flat ends of the island 4 are a pair of front 6a, and rear 6b, side plates, such that a gas-tight seal is formed. The side plates 6a,, 6b, rotate with the shaft 1, and island 4.

#A concave-shaped part(s) or “contour assembly” 8a,b,c, is inserted between plates 6a, and 6b, such that the concave opening is facing the island 4 forming a working volume there between. There can be a single contour 8a, or a multitude shown by 8b, and 8c. Outer housing 5 has at least one or up to N appendi, which point inward. This example shows a quantity of 3. The contours 8a,b,c, are connected to outer housing 5, with Wrist pins 7, which, as illustrated, are disposed in a double shear mode that enables high rigidity in the structure but allows the contours to pivot by use of frictionless bearings, plain bearings or oil film bearings.