Abstract: A turbine is provided, comprising a housing having a fluid inlet and a fluid outlet, each in communication with an internal chamber formed within the housing. A rotor is mounted for rotation within the internal chamber. At least one paddle is pivotally mounted to the rotor for pivoting between an extended position in which the paddle extends substantially radially from the rotor for receiving pressure exerted by fluid moving through the housing and causing the rotor to rotate, and a retracted position in which the paddle does not extend from the rotor. A cam is provided in the internal chamber for moving the paddle from the extended position to the retracted position when, during rotation of the rotor, the paddle moves past the cam in the extended position. Magnetic biasing means may be used to bias the paddle in the extended or retracted position.

Abstract: A turbine is provided, comprising a housing having a fluid inlet and a fluid outlet, each in communication with an internal chamber formed within the housing. A rotor is mounted for rotation within the internal chamber. At least one paddle is pivotally mounted to the rotor for pivoting between an extended position in which the paddle extends substantially radially from the rotor for receiving pressure exerted by fluid moving through the housing and causing the rotor to rotate, and a retracted position in which the paddle does not extend from the rotor. A cam is provided in the internal chamber for moving the paddle from the extended position to the retracted position when, during rotation of the rotor, the paddle moves past the cam in the extended position. Magnetic biasing means may be used to bias the paddle in the extended or retracted position.

Abstract: A pump housing has a cylindrical interior surface having outlets and a pair of side surfaces defining, in combination with the interior surface, a substantially cylindrical chamber. The surfaces have inlets. A rotor has a void, lobes and, for each lobe, a throughpassage. The rotor is positioned in the chamber such that the void communicates with the inlet to receive fluid and the throughpassage for each lobe provides communication between the void and chamber. The rotor is rotatably mounted in the chamber such that the lobes traverse the cylindrical surface. Provided for each outlet is a vane. As the rotor turns, the rotor outer surface is traversed by the vane to create, as the vane traverses a throughpassage, a chamber ahead of the vane which increases in volume and communicates with the throughpassage, and a chamber behind the vane which decreases in volume and communicates with the outlet port.

Abstract: A positive displacement pump having a centrally disposed rotor within a housing, the rotor having inwardly and outwardly moving vanes for movement of fluid through the pump. Races in end walls of the housing partly or entirely control movement of the vanes. A dam is movably positioned at the housing's fluid discharge port, the dam having upper and lower ends, the lower end of the dam extending into the housing and being positioned so as to be close to or in sliding contact with the surface of the rotor. This pump construction is extremely versatile in its construction and applications.

Abstract: A rotary, positive displacement pump for fluids, having a pair of diametrically opposed vanes secured to a rotor in equally spaced, similarly contoured pockets, for movement between an extended position with a portion of the vane extending outwardly beyond the cylindrical surface of the rotor and a retracted position wherein the vane is seated entirely within its corresponding pocket. Each vane is formed of a top curved portion and a bottom curved portion, these portions meeting along a longitudinally extending line. The top portion extends from a pivot to the line and is curved so that when the vane is in retracted position it sits in a peripheral depression extending longitudinally along the rotor surface, the outer surface of this top portion of the vane conforming to the cylindrical surface of the rotor. The bottom portion is curved along a radius from that pivot, so that this lower portion is seated in and fills its corresponding pocket when the vane is in retracted position.

Abstract: A rotary pump for fluids comprising a shaft to rotate about a longitudinal axis and a cylindrical rotor centrally secured to that shaft. A housing encasing the shaft and rotor includes, interior end walls adjacent to the rotor disks and an interior side wall. Fluid inlet and outlet ports are provided at spaced locations in the housing side wall. Paddles are pivotably secured to the rotor in pockets in the rotor, to pivot about points at rearward sides of the paddles, for movement between extended positions with the paddles extending outwardly beyond the cylindrical surface of the rotor and retracted positions where the paddles are seated entirely within their corresponding pockets. A means is provided to bias each paddle towards the extended position, but to allow the paddle to move towards that extended position, but to allow the paddle to move towards the retracted position.

Abstract: A rotary piston pump for fluids, wherein the ends of the housing are configured so as to provide reduced pressure differentials between opposite sides of the rotor end disks.

Abstract: A rotary piston pump for fluids, wherein the ends of the housing are configured so as to provide reduced pressure differentials between opposite sides of the rotor end disks.

Abstract: A rotary piston for use in pumps or motors, the piston having a radially movable vanes seated within the pumps rotor. The vanes are biased outwardly and forced inwardly by a cam action of the interior wall of the housing of the piston. Operation of the piston may be facilitated by the use of peripherally mounted drive gears. The rotary piston according to the present invention is particularly useful in pumping fluids and provides a system that can operate at both high and low speeds for a wide range of liquid viscosities.

Abstract: A rotary piston pump comprising a rotor mounted within a housing, the rotor having a pair of slidably mounted vanes on opposite surfaces. The inner wall of the housing acts as a cam surface to move the vanes inwardly, and centrifugal force or a combination of centrifugal force and biasing causes the vanes to move outwardly. The rotor is eccentrically mounted within the housing and the housing interior walls are of irregular configuration, whereby fluid from an inlet is moved by the vanes through the housing to an outlet. This rotary piston pump is of economic construction, serves a variety of applications and is easy to service.

Abstract: A rotary piston for use in pumps or motors, the piston having a radially movable vanes seated within the pumps rotor. The vanes are biased outwardly and forced inwardly by a cam action of the interior wall of the housing of the piston. Operation of the piston may be facilitated by the use of peripherally mounted drive gears. The rotary piston according to the present invention is particularly useful in pumping fluids and provides a system that can operate at both high and low speeds for a wide range of liquid viscosities.

Abstract: A rotary piston pump comprising a rotor mounted within a housing, the rotor having a pair of slidably mounted vanes on opposite surfaces. The inner wall of the housing acts as a cam surface to move the vanes inwardly, and centrifugal force or a combination of centrifugal force and biasing causes the vanes to move outwardly. The rotor is eccentrically mounted within the housing and the housing interior walls are of irregular configuration, whereby fluid from an inlet is moved by the vanes through the housing to an outlet. This rotary piston pump is of economic construction, serves a variety of applications and is easy to service.

Abstract: A rotary piston for use in pumps or motors, the piston having a cylindrical rotor with radially movable vanes rotating within a housing, the movement of the vanes controlled by pins of the vanes travelling in races in the housing.

Abstract: A rotary pump for fluids which comprises a shaft to rotate about a longitudinal axis and a cylindrical rotor centrally secured to that shaft. A housing encases the shaft and rotor, the housing having interior end walls adjacent to the rotor disks and an interior side wall. Fluid inlet and outlet ports are provided at spaced locations in the housing side wall. Paddles are pivotably secured to the rotor in pockets in the rotor, to pivot about points at rearward sides of the paddles, for movement between extended positions with the paddles extending outwardly beyond the cylindrical surface of the rotor and retracted positions where the paddles are seated entirely within their corresponding pockets.

Abstract: A positive displacement pump comprising a casing having an interior chamber and an inlet and an outlet oppositely spaced within the chamber. A rotor with a cylindrical outer surface is secured in offset position within the chamber. An end disk is secured to each end of the rotor. Three planar vanes are provided, each having sides and inner and outer edges. The sides of the vanes are seated within the end disk slots. The outer edges of the vanes are in constant contact with the side wall of the chamber. The inner edges of the vanes are constantly movably seated in the rotor slots during operation of the pump. The slots in the rotor within which the vanes are seated are formed along a chord when the rotor is viewed in lateral cross section and are orientated so that their planes lie at 60° angles to the planes of adjacent slots.

Abstract: An internal combustion rotary engine which includes a housing encased rotor having: cam actuated inwardly and outwardly extending vanes, a combustion chamber communicating with a fluid inlet port to the vanes within the housing, and an exhaust chamber communicating with the fluid outlet port from the vanes of the housing, air and fuel injectors associated with the combustion chamber for delivery of an air and fuel mixture to the combustion chamber, and igniter means associated with the combustion chamber for igniting air and fuel mixture within that chamber. Controls are provided to properly control the sequence of air and fuel injection, fuel ignition and exhaust valve opening and closing during operation of the engine to provide simpler and more economical rotary engine.