Abstract: An improved rotary engine that harmoniously produces multiple, sequential cycles. A main housing is comprised of a concentric stator sandwiched between a front and an aft wall enclosing a cylindrical inner space. A network of combustors are stationed about the stator periphery. Mounted on a central axis within the inner space is a concentrically revolving rotor body. The combustors sequentially introduce a working fluid into a plurality of expansion chambers symmetrically stationed within the rotor body. As the rotor is propelled by the working fluid, a variable vane transversely mounted within each expansion chamber simultaneously performs work on a fluid in a compression region. The compressed fluid of each cycle is discharged and diverted to compliment the combustor of a sequential cycle. A high degree of power and efficiency is achieved using simple mechanics to produce multiple cycles during each revolution.

Abstract: A variable vane rotary engine comprising of a housing formed by a stator with front and rear covers enclosing a rotor. The stator is divided into two rotatably symmetrical power-compression and intake-exhaust sections. Positioned at the beginning of each power-compression section of the stator is a combustor connected by a nozzle. Positioned throughout the intake-exhaust section of the stator are exhaust ducts. Interior to the rotor are a plurality of symmetrically positioned chambers each containing a variable vane pivotably articulated on a shaft. The chambers are exposed to the stator through peripheral rotor combustion ducts. The vanes act as a barrier dividing the chambers into an expansion region and a compression region. The dynamics of each variable vane are controlled by a set of shaft mounted eccentric bearings following on a common set of cams. The front side-wall of the rotor has a concentrically cutout inlet exposing the expansion chambers to housing air inlets.