A two stroke internal combustion rotary engine (30) with Zindler curve eccentric ring gear (8) and method of working of a two stroke internal combustion rotary engine (30) with Zindler curve eccentric ring gear is disclosed. The engine (30) has an equilateral triangular rotor (7) with Zindler curve shaped eccentric ring gear (8) with teeth. Output shaft (12) is fixed about to the center of the engine (30) with a center spur gear and it also connected to same sized another one or more spur gear (10) on the side of the center spur gear (11). When engine (30) start working, the rotor (7) and eccentric ring gear (8) will rotate eccentrically along with the side spur gears (10) connected to it, by running over the teeth cuts. Engine cover (16, 17) has a hole (20, 21) to allow a coolant to enter the rotor (7) and excel the heat.

A rotary pump is provided for fluid transfer. The pump includes a planar housing, an elongated rotor, a pair of double-concave blades, fore and aft cover plates, and a gear box. The housing has a circular center cavity, and a pair of circular lateral cavities overlapping the center cavity and disposed along a longitudinal axis. The rotor is disposed on a rotor shaft along a rotation axis perpendicular to the longitudinal axis within the center cavity. The blades flank the rotor and are disposed within their corresponding lateral cavity and turn on corresponding blade shafts parallel to the rotor shaft. The fore and aft cover plates flank the housing along the rotation axis to cover the center and lateral cavities. The blades turn opposite from the rotor.

A rotary pump is provided for fluid transfer. The pump includes a planar housing, an elongated rotor, a pair of double-concave blades, fore and aft cover plates, and a gear box. The housing has a circular center cavity, and a pair of circular lateral cavities overlapping the center cavity and disposed along a longitudinal axis. The rotor is disposed on a rotor shaft along a rotation axis perpendicular to the longitudinal axis within the center cavity. The blades flank the rotor and are disposed within their corresponding lateral cavity and turn on corresponding blade shafts parallel to the rotor shaft. The fore and aft cover plates flank the housing along the rotation axis to cover the center and lateral cavities. The blades turn opposite from the rotor.

The invention provides an engine for obtaining kinetic rotational energy from the explosive decomposition of individual cartridges of an energetic material. The cartridges are individually ignited as needed, producing a bolus of hot, expanding gas, the energy of which is captured by a piston moving in a circular track. Each cartridge ignition produces a single circuit of the piston around the track. A gearing mechanism transfers the angular momentum of the piston to a flywheel. The engine may be coupled to an electrical generator to form a portable, on-demand electric generator system.

A rotary engine rotor (10) comprising three rotor flanks (12) arranged in a generally equilateral triangle shape, each rotor flank (12) having a leading edge (16) and a trailing edge (17), an elongate lip (21) being provided on the leading edge (16) of at least one of the rotor flanks (12), the elongate lip (21) extending the full axial length of the rotor flank (12). In another aspect, at least one rotor flank (12) comprises a cavity having a leading edge and a trailing edge, and at least a portion of the base of the cavity proximal to a trailing edge thereof is curved outwardly.

A rotary engine rotor (10) comprising three rotor flanks (12) arranged in a generally equilateral triangle shape, each rotor flank (12) having a leading edge (16) and a trailing edge (17), an elongate lip (21) being provided on the leading edge (16) of at least one of the rotor flanks (12), the elongate lip (21) extending the full axial length of the rotor flank (12). In another aspect, at least one rotor flank (12) comprises a cavity having a leading edge and a trailing edge, and at least a portion of the base of the cavity proximal to a trailing edge thereof is curved outwardly.

The disclosure provides rotary machines that include, in one embodiment, a shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have a first gearbox disposed thereon defining one or more cavities therein. At least one contour is slidably received into an arcuate cavity in an exterior surface of the gearbox. The contour has a convex outer surface that cooperates with an inwardly facing curved surface of a housing to form a working volume. A gearbox mechanism consisting of gears, crankshafts, bearings and connecting rod creates an oscillatory motion 2 times per revolution such that the contour can navigate about the arcuate cavity without contacting the cavity at a high rate of rotating speed. Thus, said working volume can expand and compresses twice per rotatable shaft revolution.

The disclosure provides rotary machines that include, in one embodiment, a shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have a first gearbox disposed thereon defining one or more cavities therein. At least one contour is slidably received into an arcuate cavity in an exterior surface of the gearbox. The contour has a convex outer surface that cooperates with an inwardly facing curved surface of a housing to form a working volume. A gearbox mechanism consisting of gears, crankshafts, bearings and connecting rod creates an oscillatory motion 2 times per revolution such that the contour can navigate about the arcuate cavity without contacting the cavity at a high rate of rotating speed. Thus, said working volume can expand and compresses twice per rotatable shaft revolution.

Accordingly, embodiments herein disclose a system (500) for controlling admission volume of an inlet gas for fixed RPM operation of in an apparatus. The system (500) has a boiler (502) for generating a steam at a higher pressure for heating application in a process. A pressure reducing valve (PRV) (504) controls a boiler pressure to process pressure. Inlet ports and exhaust ports are configured by intersection of opening on a rotor housing (614) and opening on a rotating valve. Inlet ports are configured so that a port opening duration can be controlled to admit required volume of a steam corresponding to a mass flow requirement of the process. A port capable of changing the area and timing of opening in such a way that the duration and starting of exhaust can be controlled.

Disclosed herein is a rotary engine a supply flow passage provided in the housing to allow the lubricating oil to move therethrough, a sealing part arranged to contact the rotor to selectively close the supply flow passage, and an elastic part configured to press the sealing part toward the combustion chamber.