Abstract: A diesel or diesel-like internal combustion engine drivably connected to a variable internal compression ratio supercharger that supplies varying amounts of air to the engine responsive to the load requirements of the engine. The supercharger has a pair of rotors concurrently driven by the engine to move air to the engine. A slide assembly associated with screw rotors is movable with a controller relative to the rotors to bypass air to atmosphere and regulate the amount of air and pressure of the air compressed by the screw rotors to the engine to increase the engine's efficiency.

Abstract: An internal combustion engine is coupled to a supercharger operable to supply varying amounts of air to the engine responsive to the load on the engine. The supercharger has a pair of screw rotors driven by the engine to move air to the engine and a control apparatus for varying the mass and pressure of air supplied to the engine.

Abstract: An internal combustion engine is coupled to a supercharger operable to supply varying amounts of air to the engine responsive to the load on the engine. The supercharger has a pair of screw rotors driven by the engine to move air to the engine and a control apparatus for varying the mass and pressure of air supplied to the engine.

Abstract: A pump has an extruded metal housing surrounding a square internal chamber accommodating a piston assembly with square pistons. An eccentric member and block assembly associated with a driven shaft reciprocates the piston assembly to pump fluid. The flow of fluid into and out of the pumping chamber is controlled with intake and exhaust valves incorporated into plates mounted on opposite ends of the housing.

Abstract: An internal combustion engine has rotary valves associated with movable shutters operable to vary the closing of intake air/fuel port sections to obtain peak volumetric efficiency over the entire range of speed of the engine. The shutters are moved automatically by a control mechanism that is responsive to the RPM of the engine. A foot-operated lever associated with the control mechanism is also used to move the shutters between their open and closed positions.

Abstract: A seal assembly slidably mounted in a slot in the piston engages the cylindrical internal wall of the housing to form separate chambers. The housing has arcuate slots non-concentric with its cylindrical internal wall accommodating rollers connected to the seal assembly to maintain the seal assembly in constant and substantially uniform sealing engagement with the internal wall of the housing.

Abstract: An internal combustion engine having a head with valve assemblies for controlling flow of intake and exhaust gases to and from piston chambers. A head plate is located between the head and a block having cylinders accommodating pistons. The head plate has openings in communication with the cylinders and valve assemblies. Each valve assembly has a continuous ceramic sleeve having an intake port, and an exhaust port. Rotatably disposed within the sleeve is a rotatable valve body having a valving combustion chamber open to a piston chamber. A spark plug is mounted on each valve body. A first pressure responsive seal mounted on the valving body has a sealing surface engageable with the sleeve. A second pressure responsive face seal is located between the head plate and the rotating valve body. The valving body and first seal are rotatably driven to sequentially align the valving combustion chamber with the intake port and exhaust port during the operation of the engine.

Abstract: An internal combustion engine having a heat with valve assemblies for controlling intake and exhaust gases to and from piston chambers. A head plate is located between the head and a block having cylinders accommodating pistons. The head plate has openings in communication with the cylinders and valve assemblies. Each valve assembly has a continuous ceramic sleeve having an intake port, an exhaust port, and ignition hole. Rotatably disposed within the sleeve is a rotatable valve body having a valving combustion chamber open to a piston chamber. A ceramic segment seal member movably mounted on the valving body has sealing surfaces engageable with the sleeve. A face seal is located between the head plate and the rotating valve body. The valving body and seal member are rotatably driven to sequentially align the valving combustion chamber with the intake port, ignition hole, and exhaust port during the operation of the engine.

Abstract: A rotary internal combustion engine has a housing with an elliptical inside surface surrounding an elliptical rotor forming with the housing combustion chambers. Valve and ignition assemblies connected to a source of air under pressure and injectors for introducing fuel into the air supply sequentially allows the air and fuel mixture to flow into the combustion chambers and ignite the air and fuel mixture therein. Vane and seal assemblies on the rotor and housing are controlled with cam and linkages to provide positive effective gas seals between the housing and rotor. A slack adjuster maintains lateral sealing relationships between the housing vane and seal assemblies and opposite side walls of the housing.

Abstract: An internal combustion engine having a head with valve assemblies for controlling intake and exhaust gases to and from piston chambers. A head plate is located between the head and a block having cylinders accommodating pistons. The head plate has openings in communication with the cylinders and valve assemblies. Each valve assembly has a continuous ceramic sleeve having an intake port, an exhaust port, and ignition hole. Rotatably disposed within the sleeve is a rotatable valve body having a valving combustion chamber open to a piston chamber. A ceramic segment seal member movably mounted on the valving body has sealing surfaces engageable with the sleeve. A face seal is located between the head plate and the rotating valve body. The valving body and seal member are rotatably driven to sequentially align the valving combustion chamber with the intake port, ignition hole, and exhaust port during the operation of the engine.

Abstract: An air pump and compressor having a housing with a cylindrical internal chamber. A plurality of pairs of intake and exhaust valves mounted on the housing control the flow of air into and out of the chamber. A piston located within the chamber is mounted on a shaft rotated on the housing. The shaft has a primary eccentric that supports the piston in the chamber. A pair of secondary eccentrics spaced from the primary eccentric are mounted on the piston and housing to control the orbital movement of the piston. Seal assemblies slidably mounted in slots in the piston engage the inner cylindrical wall of the housing to form separate pumping chambers. Each pumping chamber is in communication with an intake valve and an exhaust valve so that on orbital movement of the piston the air flows into and is pumped out of each pumping chamber.

Abstract: A rotary internal combustion engine has a housing with an elliptical inside surface surrounding an elliptical rotor forming with the housing combustion chambers. Valve and ignition assemblies connected to a source of air under pressure and injectors for introducing fuel into the air supply sequentially allows the air and fuel mixture to flow into the combustion chambers and ignite the air and fuel mixture therein. Vane and seal assemblies on the rotor and housing are controlled with cam and linkages to provide positive effective gas seals between the housing and rotor. A slack adjuster maintains lateral sealing relationships between the housing vane and seal assemblies and opposite side walls of the housing.

Abstract: A rotary device has a housing with an elliptical inside surface surrounding an elliptical rotor. Vane and seal assemblies on the rotor and housing are controlled with cam and linkages to provide positive effective gas seals between the housing and rotor. A slack adjuster maintains lateral sealing relationships between the housing vane and seal assemblies and opposite side walls of the housing.

Abstract: An internal combustion engine having a head with valve assemblies for controlling intake and exhaust gases to and from piston chambers. A head plate is located between the head and a block having cylinders accommodating pistons. The head plate has openings in communication with the cylinders and valve assemblies. Each valve assembly has a continuous ceramic sleeve having an intake port, an exhaust port, and ignition hole. Rotatably disposed within the sleeve is a rotatable valve body having a valving combustion chamber open to a piston chamber. A ceramic segment seal member mounted on the valving body has sealing surfaces engageable with the sleeve. A face seal is located between the head plate and the rotating valve body. The valving body and seal member are rotatably driven to sequentially align the valving combustion chamber with the intake port, ignition hole, and exhaust port during the operation of the engine.

Abstract: A rotary device has a housing with an elliptical inside surface surrounding an elliptical rotor. Vane and seal assemblies on the rotor and housing are controlled with cam and linkages to provide positive effective gas seals between the housing and rotor. A slack adjuster maintains lateral sealing relationships between the housing vale and seal assemblies and opposite side walls of the housing.

Abstract: A head for an internal combustion engine has a rotary valve for controlling intake and exhaust gas from the combustion chamber of a piston-type internal combustion engine. The valve has a continuous ceramic sleeve having an intake port, an exhaust port, and ignition hole. Rotatably disposed within the sleeve is a rotatable ceramic ring having a valving port open to the combustion chamber. The sleeve is rotatable by a driven body to sequentially align the valving port with the intake port, ignition hole, and exhaust port during the operation of the engine.

Abstract: An internal combustion engine having a cylinder bore providing a combustion chamber, and a piston located in the cylinder bore. A head mounted on the cylinder has concentric intake and exhaust valves operable to control the flow of gas into and out of the combustion chamber.

Abstract: A control unit receiving fluid under pressure discharges the fluid in a pulsed manner to a receiver. The control unit has a rotatable sleeve accommodating an axially movable piston. The sleeve and piston have cooperating openings and grooves that control the pulsed flow of fluid from the control unit. The operating position of the piston responds to the pressure of the fluid on the piston and the relative angular orientation of the piston to the fluid discharge openings in the sleeve.