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Match Document Document Title
7553138 Rotary screw machine of volume type and method of transforming a motion in a volume screw machine  
The invention relates to a rotary screw machine of volume type comprising a body ( 30 ) having a main axis X, two members ( 10, 20 ), wherein a first one ( 20 ) surrounds a second one ( 10 ). Said...
7549850 Rotary mechanism  
A rotary mechanism ( 10 ) has an annular (chamber 12 ) defined by an inner wall ( 16 ) of housing ( 11 ). A symmetrical two lobed rotor ( 15 ) has opposing side faces ( 21 a, 21 b ) a...
7540728 Method of transforming a motion in a volume screw machine of rotary type and rotary screw machine  
In order to more effectively use the constructional volume of a volume screw machine of rotary type, a plurality of sets ( 80, 70; 60, 50 ) of female elements having an inner screw surface and of...
7467934 Axial piston engine with integrated filling pump  
The invention relates to an axial piston engine with a filling pump integrated in a receiving bore of the axial piston engine, which filling pump comprises a gerotor set with an externally toothed...
7435066 Oil pump  
The present invention provides an oil pump in which eroding of the inside of the pump due to cavitation and erosion is prevented by minimizing the pressure change in a fluid when inter-tooth spaces...
7404705 Blending pump assembly  
A blending pump assembly for accurately maintaining the proper ratio of two fluid components. Flow of a first fluid is utilized to drive a fluid motor, which in turn drives a pumping mechanism to...
7367790 Double-acting type orbiting vane compressor  
The double-acting type orbiting vane compressor comprises an orbiting vane having upper and lower circular vanes formed at the upper and lower surfaces of a vane plate of the orbiting vane,...
7264454 Rotary combustion engine with an improved inner seal  
A rotary combustion engine includes a peripheral housing, a front housing plate, a rear housing plate, a piston, and an eccentric shaft, where the piston rotates to form three working spaces...
7178502 Balanced rotary internal combustion engine or cycling volume machine  
A balanced rotary cycling machine suitable for use as an internal combustion engine, compressed gas or steam engine, compressor or pump is disclosed herein. The rotor assembly consists of four...
7131826 Blending pump assembly  
A blending pump assembly for accurately maintaining the proper ratio of two fluid components. Flow of a first fluid is utilized to drive a fluid motor, which in turn drives a pumping mechanism to...
7070402 Integrated speed reducer and pump assembly  
An integrated speed reducer and gerotor pump is disclosed. The device comprises a motor, a speed reducer, and a gerotor pump. The motor provides torque at an elevated speed. The speed reducer is...
6974310 Screw extruder and gear pump arrangement for highly viscous media  
A screw extruder and gear pump arrangement for highly viscous media includes a screw shaft and a gear pump operatively coupled to the screw shaft. A planet carrier is operatively engaged with at...
6887053 Rotary piston engine in trochoidal design  
In a rotary piston engine in trochoidal design with a rotor housing, made of light metal, and with side parts, which are made of light metal, it is provided that the bearing bodies are connected in...
6481988 Internal combustion engine  
First pivot bodies are received for rotation in first recesses in the housing member. A piston member is mounted in a eccentric portion of the drive shaft such to orbit in operation. Second pivot...
6406279 Displacement type fluid machine  
A displacement type fluid machine has a sliding contact portion between a cylinder 4 and a displacer 5 made into a predetermined section, and the cylinder and the displacer so contoured that...
6332764 Displacement type fluid machine having an orbiting displacer forming a plurality of spaces and method for manufacturing same  
A displacement type fluid machine for reducing a fluid loss of a discharge process as much as that of a scroll fluid machine has a displacer which is provided with at least one through hole for...
6312237 Displacement type fluid machine  
In a displacement type fluid machine wherein a space is formed by the inner wall surface of a cylinder and the outer wall surface of a displacer when the center of the cylinder is located on the...
6217303 Displacement fluid machine  
An orbiting fluid machine has a feature that the speed of sliding movement is low, while vibrations are small, its performance is lowered when the rotational speed becomes high, and this problem is...
6183228 Displacement type fluid machine  
A displacement type fluid machine in which a displacer and a cylinder are disposed between end plates, a space is formed by an inner wall surface of the cylinder and an outer wall surface of the...
6179593 Displacement fluid machine  
Side wall surface of an orbiting piston and inner wall surface of a cylinder define therebetween a plurality of working chambers, a space for compressing (discharging) a working fluid is defined...
6152714 Displacement type fluid machine having rotation suppression of an orbiting displacer  
A conventional displacement type fluid machine involves a problem that a mechanical friction loss and leakage in sliding portions are large, so that its reliability and performance are poor, and...
6065289 Fluid displacement apparatus and method  
The present invention relates generally to fluid displacement apparatuses and methods. The inventive apparatus comprises: a housing having an interior space; a crankpin positionable in the interior...
5681156 Piston machine having a piston mounted on synchronously rotating crankshafts  
A piston machine usable as an expansion engine, suction pump or compressor for a compressible medium has a housing containing a working space with two parallel walls and an interconnecting...
5092752 Seal assembly for a rotary device  
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...
5080562 Annular rolling rotor motor compressor with dual wipers  
A rolling rotor motor/compressor is provided with an external rotor/piston which coacts with a bore/cylinder in the housing and one or more vanes to define a rolling piston compressor. Thus, the...
5074769 Compressor having an orbital rotor with parallel linkage and spring biased vanes  
A rotary compressor includes a support member for supporting a revolution piston while preventing rotary movement thereof with respect to its axis, and at least two sliding blades provided in the...
5051070 Variable capacity compressor  
A compressor suitable for use in a vehicle cooling system. The compressor includes a cylinder having a cylindrical inner wall surface, a rotor supported by a crankshaft having an eccentric portion...
5006052 Orbital rotor compressor having an inlet passage in the rotor  
A compressor arrangement is provided with an eccentrically controlled slidable vane. The vane is movable to release excessive pressure build-up so as to eliminate requirements for a safety valve.
4915071 Orbit internal combustion engine  
An orbit internal combustion engine having a housing with a cylindrical internal wall surrounding a plurality of combustion chambers. A plurality of pairs of intake and exhaust valves mounted on...
4848296 Rotary internal combustion engine  
A rotary internal combustion engine comprises a cylindrical casing and a cylindrical rotor. Several stepped crankshafts rotatably connected to the rotor pass through the ends of the casing, thereby...
4780070 Gear pump having multiple outputs  
A gear pump is disclosed which is adapted to produce a large number of independent output streams, and which includes a housing having a cylindrical opening, a toothed gear disposed coaxially...
4776777 Rolling cylinder engine system  
An engine for rotating an output shaft includes a housing which defines an inner cylindrical surface coaxial with the output shaft. A roller member is disposed within the housing and includes an...
4692104 Rotary pumping apparatus with radial seal assemblies on piston  
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...
4684143 Two-wheeled vehicle with hydraulic transmission  
A two-wheeled vehicle such as a bicycle includes a variable displacement fluid pump such as a radial plunger pump provided at a crankshaft of pedals and a fixed displacement fluid motor such as a...
4672989 Flow conditioned nutation valving apparatus and method of operation  
Structure and method are disclosed for providing timed valving in which a nutating plate having an opening defined therethrough moves relative to at least one other nominally static plate having a...
4657009 Closed passage type equi-pressure combustion rotary engine  
A rotary engine including a compressor, an external pressure vessel, an internal pressure vessel defining a combustion chamber, and a fuel nozzle opening into the combustion chamber. Both...
4597403 Nutation valving apparatus and method of operation  
Structure and method for providing timed valving in which a nutating plate having an opening defined therethrough moves relative to at least one other nominally static plate having a complementary...
4585404 Double-eccentric rotary apparatus with minimal chamber volume  
A rotary apparatus wherein a rotor is movable within a cylindrical housing. The rotor is formed by a cylinderlike drum with projecting radial vanes. The drum is supported by a crank mechanism which...
4567867 Rotary engine  
A rotary engine including a housing having a special planetary curved surface opening and including a drive shaft interconnected with a belt by a plurality of drive rollers. Chambers are formed...
4481920 Rotary internal combustion engine, fluid motor and fluid pump having planetating gear pistons  
Disclosed herein is a rotary engine/pump for use as an internal combustion engine, a fluid motor, a fluid pump or the like. Included is a ring of a plurality of radially arranged inwardly...
4412794 Ultra-high torque actuators  
An actuator for rotating an output member, having an epicyclic transmission adapted to rotate the output member in response to the motion of a rotor which contains a plurality of radial projections...
4385874 Rotary pump apparatus with plural abutting pumping segments  
A rotary pump apparatus with plural abutting pumping segments has a wafer-like housing with an inner elliptical pumping chamber with intake and discharge ports for a fluid flow. A plurality of...
4380220 Internal combustion engine  
A four cycle internal combustion engine comprising a housing defining an internal compartment having one or more peripheral lobes, an inner body mounted in the housing for non-rotational orbital...
4373484 Rotary piston mechanism  
A stator enclosure bounded by two side plates confines three fixed blocks and rotor components comprising an internal ring eccentrically disposed about a centrally positioned power delivery shaft...
4314533 Rotary engine employing double eccentric  
A rotary engine wherein a piston is moving within the inside of a cylindrical housing describing its geometrical center or shaft a hypocycloid while the remaining points are generated by a...
4274374 Air-cooled rotary internal combustion engine  
A rotor chamber and cooperating lubricant passages are defined within an engine housing having a plurality of heat-transfer fins on the exterior surface thereof. A rotor having fluid passages...
4253806 Low speed hydraulic motor with counter balanced planetating drive ring and spring biased vanes  
A drive ring for a rotary expansible chamber hydraulic motor has driving gear teeth on its inner periphery and is constrained against other than planetating motion by a series of angularly spaced...
4249750 Fluid-power converter with paired rotators providing seals and displacement paths and pump-motor utilizing same  
The fluid-power converter of the present invention is a pump-motor having matched rollers and matched gears arranged to provide seals and displacement paths. The pump-motor includes a plurality of...
4239466 Rotary machine with adjustable means for its eccentric rotor  
A rotating ring rotary compressor having a driven eccentric so mounted on the drive shaft that its eccentricity is adjustable from a minimum to a maximum, whereby at its maximum extension it...
4229152 Epicyclic gear system and driving means therefor  
An epicyclic gear system and driving means therefor comprise three planetary gears disposed within a sealed compartment to form two separate volumes; the planetary gears comprise a primary...
Matches 1 - 50 out of 127 1 2 3 >