Matches 1 - 50 out of 163 1 2 3 4 >


Match Document Document Title
8162637 Rotary machine having frusto-conical elements  
A system for enabling fluid flow is provided which includes a plurality of frusto-conical elements and central and outer spherical shells which enclose the frusto-conical elements. The elements are...
8151759 Orbital engine  
The present disclosure includes an engine having a torodial piston chamber, at least one piston positioned in the torodial piston chamber, and at least one engine valve positioned to interact with...
8136503 Piston valve internal combustion engine  
An internal combustion engine of two perpendicular, toroidal cylinders intersecting at two junctions with each cylinder containing one piston filling half of its volume. The pistons are 180 degrees...
8105059 Compressor with screw rotor and gate rotor with inclined gate rotor center axis  
A compressor includes a screw rotor and a gate rotor arranged to form a compression chamber. The screw rotor has an outer circumferential surface with at least one groove portion. The gate rotor...
7891955 Compressor having a dual slide valve assembly  
A compressor having a dual slide valve assembly is disclosed. The slide valve assembly includes: i) a volume slide valve mechanism that is slidably movable to control compressor volume ratio and...
7828535 Pressure sealed tapered screw pump/motor  
A fluid pump (10) or motor (100) includes a pair of enmeshed tapered rotors (22,24,122,124) having intersecting axes of rotation. The first rotor (22,122) includes a small low pressure end...
7726960 Twin-plate rotary compressor  
This invention relates to a twin-plate, rotary compressor and refers particularly, though not exclusively, to a twin-plate, rotary compressor comprising two conical plates for relative rolling...
7699592 Rotary piston machine  
A rotary piston machine includes a driving part driven by an electric motor, and a driven part that have mutually engaging end-face denticulation for delivering a medium, the driving part and the...
7650871 Rotary compressor and expander, and rotary engine using the same  
A rotary device for use with compressible fluids comprises a first rotation element mounted to rotate about a first axis and a casing having a surface enclosing at least a part of the first...
7621254 Internal combustion engine with toroidal cylinders  
The instant invention provides a torodial internal combustion engine with lengthened pistons that move through three perpendicularly intersecting torodial cylinders. The engine includes one central...
7390181 Rotating piston machine  
A rotary piston machine has a driving part which is driven by an electric motor and a driven part which are geared together and engage one another for the delivery of a medium, the driven part...
7364415 Twin piston fluid compressor or pump apparatus with an annular bore housing  
An apparatus to pump fluid comprises an annular bore (12) and at least one pair of pistons (15, 16) which travel along the bore (12). The pistons (15, 16) can be releasably locked to a rotating...
7351047 Swash-plate variable volume chamber-type fluid machine  
The present invention provides an improved swash plate type variable capacity fluid machine which is fluid-tight, simple in structure, quiet in operation, and highly durable, yet without increasing...
7341041 Toroidal engine with variable displacement volume  
A novel rotary engine of the kind having a toroidal cylinder and a set of pistons on a rotating circular piston assembly provides instantaneous adjustment of the displacement volume of the engine...
7318712 Rotary piston machines comprising a displaceable inner housing  
In a rotary piston machine with an inner housing and rotors, the axes of the rotors are disposed at an angle to one another in order to equalize manufacturing tolerances and to reduce gap losses of...
7305963 Blade-thru-slot combustion engine, compressor, pump and motor  
This is simple and efficient rotary machine that can be implemented as compressor, pump, motor and mainly as internal combustion engine. The engine comprises a housing, a rotor(s) with a radial...
7225789 Sealing intersecting vane machines  
The invention provides a toroidal intersecting vane machine incorporating intersecting rotors to form primary and secondary chambers whose porting configurations minimize friction and maximize...
7171941 Positive displacement rotary device and method of use  
A positive displacement rotary device and method of use are provided. The rotary device includes coupled chamber halves with a drive disc having at least one drive plate rotatably engaged with the...
7162993 Intersecting vane machines  
The invention provides a toroidal intersecting vane machine incorporating intersecting rotors to form primary and secondary chambers whose porting configurations minimize friction and maximize...
7153112 Compressor and a method for compressing fluid  
A compressor and a method for compressing fluid according to which a liner is disposed on the inner wall of a housing defining a bore. At least one slot and at least one discharge port are provided...
7097437 Rotary fluid machine  
A rotary fluid machine is provided that includes a rotor chamber (14), a rotor (41), vanes (48) guided by vane channels formed in the rotor (41), and pistons (47) slidably fitted in cylinders (44)...
7080976 Volumetric rotary machine  
A fluid flow displacement rotary machine is provided which includes a casing including an inclined rib on an inner surface thereof, and a shaft provided coaxially with the casing such that the...
7059294 Orbital engine  
An engine is disclosed including at least one piston which is positioned within a toroidal piston chamber. A method of operating an engine is disclosed wherein a piston is advanced in a toroidal...
6941900 VAL rotary engine  
A rotary engine has a spherical enclosure serving as a combustion chamber, a first baffle inside the combustion chamber slideable along a groove formed in the spherical enclosure, and a second...
6896501 Single-screw compressor  
Present invention provides a single screw compressor from which only a small amount of gas to be compressed leaks and which can be manufactured at low costs. There are provided a screw rotor 1...
6887057 Minimal contact seal positive displacement device method and apparatus  
A positive displacement device that incorporates two rotors that are offset from collinear and each comprising a first and second set of vanes where the engagement surfaces of the first set of...
6884051 Rotary fluid machinery  
An outer periphery of an output shaft integral with a rotor of an expander of a vane-type operated by a high-pressure vapor is supported at its opposite ends by a static-pressure bearing mounted at...
6739852 Rotary engine and method for determining engagement surface contours therefor  
An improved rotary engine and method for determining the contours of the sealing surfaces thereof. The improved engine provides for maintaining a predetermined, optimal gap between the sealing...
6729295 Rotary piston engine  
A rotary piston engine having at least two rotary pistons formed as gearwheels mounted in a rotatable fashion on mutually perpendicular axes in a housing that provides a closed seal for the pistons...
6634873 Method for determining engagement surface contours for a rotor of an engine  
An improved rotary engine and method for determining the contours of the sealing surfaces thereof. The improved engine provides for maintaining a predetermined, optimal gap between the sealing...
6547545 Rotary machine for a compression or an expansion of a gaseous working fluid  
A rotary machine for a compression or an expansion of a gaseous working fluid comprises a machine housing (10), a rotor (11) which is rotatably mounted within said housing and which, in its...
6497564 Balanced rotors positive displacement engine and pump method and apparatus  
A machine to convert energy providing positive displacement of a fluid contained in operating chambers. The machine can either increase the pressure of a fluid or extract energy from a pressure...
6447275 Screw pump  
A screw pump includes a screw rotatably arranged in a housing, the threads of which are partially in engagement with a rotatable sealing device having radial sealing discs, whereby the screw area...
6398532 Single screw compressor  
This invention relates to a single screw compressor comprising a body housing a spindle, a screw and two pinions for engaging the screw, wherein both said pinions and said screw have unequal-width...
6332271 Method for making rotors  
A method for making rotors for screw-type machines with a plunge-cut turning method in which an approximately rectangular groove is formed approximately at a center of a work piece with trilateral...
6135743 Rotary piston pump  
This invention may find use in applications such as pumps and other machines, it solves the problem of reduction of hydrodynamic resistance multiply and increases the capacity. The offered mechanim...
6106241 Single screw compressor with liquid lock preventing slide  
A single screw compressor includes two gaterotors with associated capacity controller, at the start of the compressor one capacity controller is in a fully unloaded position, and the other capacity...
6036463 Rotary positive displacement engine  
An engine has a pair of rotors, both housed within the same housing. The housing has an interior cavity which is preferably spherical but need only be partially spherical, the remainder at least...
5993182 Reversible converter of direction of movement and device for displacing volumes using said converter  
A reversible converter of direction of motion, in which all geometric axes of rotating parts cross each other at one point, comprises: a body; a shaft, rotatably mounted in the body; a guide...
5890884 Screw-type compressor with liquid lock protection  
A rotary compressor of the type provided with a screw (1) and pinion gear (4) is protected from liquid lock effects by disc spring (17) which applies on the pinion gear shaft (11) a pressure higher...
5782624 Fluid compression/expansion machine with fluted main rotor having ruled surface root  
Fluid compressor or expander having a main rotor with discrete arcked-helical flutes that have ruled surface roots that match the predominantly planar tips of the teeth of the associated gate...
5513969 Rotary piston machine having engaging cycloidal gears  
The invention comprises a rotary piston machine, which functions as a pump, compressor or engine, and in which the cogs (45) of teeth (46) of a rotating control part travel over a cycloidal surface...
5474043 Helicotoroidal vane rotary engine  
An internal combustion engine has a ring-shaped stator with a plurality of thin slits. A rotor, having a plurality of helicotoroidal troughs formed on its inner surface, encloses the stator. A...
5435704 Capacity and volume ratio control valve assembly  
Volume ratio and capacity are controlled by slides which are rail guided. The slides are pressure-balanced, axillay and radially. The volume ratio slide has a piston balancing arrangement. The...
5395225 Screw pump having eccentric circular sealing discs  
Screw pump of the type which comprises a rotatable screw (16) in a housing (11), the threads (20, 21) of which are partially in engagement with a rotatable sealing device (19). The screw area of...
5233954 Toroidal hyper-expansion rotary engine, compressor, expander, pump and method  
An intersecting vane machine (300), based upon toroidal geometry, has a primary rotor (302) and a plurality of secondary rotors (304). The rotor (302) has a plurality of primary vanes (314) in...
5205724 Revolving piston compressor  
Revolving piston compressor, which consists of two hollow rings when joined, form a tunnel or "sleeve" within which a curved piston circulates. A transversely disposed disc turns in synchronized...
5131359 Rotating head and piston engine  
Features of this apparatus include a carrier ring with attached concentrically rotating pistons which tangentially couple forces from expanding gasses to a power transfer means, a rotating head...
5129800 Single screw interrupted thread positive displacement mechanism  
A single screw positive displacement compressor mechanism employing shallow ate rotor tooth penetration of the main rotor for purposes of reducing internal leakage and consequent compressor...
5125379 Rotary engine  
A rotary engine includes a housing in which two rotors are mounted on mutually transverse axes and are provided with lobes which interact with the sides of the other rotor to provide compression...
Matches 1 - 50 out of 163 1 2 3 4 >