Class / Patent application number | Description | Number of patent applications / Date published |
418196000 | Three or more | 12 |
20080304995 | RADIAL AXIS, SPHERICAL BASED ROTARY MACHINES - A rotary machine which can be either a pump or an internal combustion engine has a housing enclosing a plurality of rotor spindles lying on the surface of an imaginary cone for driving an output shaft positioned at the vertex of the imaginary cone. The spindles have a beveled gear on one end and engaging an output shaft and a conical bearing on the other end. Angled eccentric rotors are mounted to each spindle shaped to maintain tangential sliding contact with two adjacent rotors to form a compression or combustion chamber. A spherical version of a compressor or an engine uses a plurality of rotary pistons each of which is eccentrically mounted and forms a spherical segment. Each rotary piston is mounted for tangential sliding contact with at least two other rotary pistons to form a displacement chamber therebetween. The rotary pistons use a generally “tear drop” shape. A rotary pump has a housing having a manifold for distributing intake and exhaust air. The pump has a plurality of lobe shafts, each having an eccentrically mounted rotor attached thereto mounted in the housing to form a compression chamber in the middle of the rotor when the rotors are all in contact with each other during rotation. | 12-11-2008 |
20090068050 | RADIAL AXIS, SPHERICAL BASED ROTARY MACHINES - A rotary machine including: a housing; a plurality of rotor spindles aligned along three orthogonal axes; rotor blades on the rotor spindles and arranged relative to each other so that each rotor blade is in tangential sliding contact with at least two other rotor blades and forming a plurality of working chambers each having a volume which changes as the rotor spindles rotate; a gear system including a plurality of internal bevel gears on the ends of the plurality of rotor spindles and for synchronizing rotation of the rotor spindles during operation; and a central valve mechanism with the rotor spindles extending radially outward therefrom and around which the rotor blades are arranged, wherein the central valve mechanism controls flow of a fluid to at least some of the working chambers formed by the rotary blades. | 03-12-2009 |
20090148330 | Optimized Helix Angle Rotors For Roots-Style Supercharger - A method of designing rotors for a Roots blower comprising a housing having cylindrical chambers, the housing defining an outlet port ( | 06-11-2009 |
20090214371 | MULTIPLE ROTOR FLUID TRANSFER ENGINE - A fluid transfer engine employs a case with a cylindrical inner wall having an operating radius extending from a case axis. A main rotor is carried within the case and incorporates a lobe with a major radius equal to and concentric with the operating radius of the case, the main rotor having a minor radius defining a body. Two peripheral rotors are diametrically opposed with respect to the case axis and rotate within rotor chambers extending from the case. Each peripheral rotor has a radius equal to the minor radius and a center of rotation located at twice the minor radius from the case axis. Each of the peripheral rotors rotates in uniform circular motion with the main rotor in sealing contact with the body and incorporates a sculpted recess for receiving the lobe of the main rotor. | 08-27-2009 |
20100028188 | Low Speed, High Torque Rotary Abutment Motor - An improved high torque rotary abutment motor is provided that is capable of producing ultra high pressures, while still remaining light weight an reliably efficient. The rotary abutment motor is provided with a body and rotor are sealed in the axial direction with two face spring seals compensating for tolerance and wearing gap. In such a configuration, increasing pressures create increasing force of sealing, thereby allowing operational pressures in excess of what is currently available today. | 02-04-2010 |
20100247365 | DOUBLE GEAR PUMP - In a double gear pump that is provided with a drive gear; two driven gears that are oppositely arranged with the drive gear therebetween, a first bearing that supports a drive shaft of the drive gear; and a second and a third bearings that support rotating shafts of the two driven gears, the bearing length of the first bearing is formed shorter than the bearing lengths of the second and third bearings. According to the present invention, it is possible to provide a double gear pump that is capable of easily and reliably reducing the bearing loss of a bearing that support a gear. | 09-30-2010 |
20130330224 | MULTI-CLUSTER GEAR DEVICE - A multi-cluster gear device operable to function as a pump, a motor or operable to alternate between a pump and a motor. | 12-12-2013 |
418197000 | Helical or herringbone | 5 |
20100135839 | SCREW COMPRESSOR WITH INTEGRAL BEARING COVER AND DISCHARGE PLENUM DIVIDER - A three rotor screw compressor is provided with a bearing cover, and an integral discharge case having a divider wall formed integrally with the bearing cover. The bearing cover closes bearing chambers for each of three rotor shafts, and the divider wall divides a plenum into two distinct chambers. By providing the divider wall, noise and efficiency losses from intermixing of two discharge flows from two separate compression chambers is eliminated. By forming a divider wall integrally with the bearing cover, leakage which has existed in the prior art is eliminated. | 06-03-2010 |
20100166591 | POSITIVE DISPLACEMENT ROTARY COMPONENTS HAVING MAIN AND GATE ROTORS WITH AXIAL FLOW INLETS AND OUTLETS - An axial flow positive displacement gas turbine engine component such as a compressor or a turbine or an expander includes a rotor assembly extending from a fully axial flow inlet to a downstream axially spaced apart axial flow outlet. The rotor assembly includes a main rotor and one or more gate rotors rotatable about parallel main and gate axes of the main and gate rotors respectively. The main and gate rotors having intermeshed main and gate helical blades extending radially outwardly from annular main and gate hubs, circumscribed about, and wound about the main and gate axes respectively. Intersecting main and gate annular openings in the axial flow inlet extend radially between a casing surrounding the rotor assembly and the main and gate hubs. The main helical blades transition from 0 to a full radial height in a downstream direction in an inlet transition section. | 07-01-2010 |
20120230856 | HELICAL GEAR PUMP - A helical gear pump includes a second helical gear provided coaxially with a drive helical gear, a third helical gear engaged with the second helical gear and provided on a third shaft different from a shaft of the drive helical gear and a shaft of a driven helical gear, and a bearing for supporting the third shaft and receiving a thrust force. | 09-13-2012 |
20140178238 | Pump, Pump System and Method for Pumping a Medium - The invention relates to a pump, a pump system and a method for pumping a medium. The pump for pumping medium comprises an inlet, an outlet, a drivable spindle and at least two follower spindles, wherein the drivable spindle and the at least two follower spindles are provided at a mutual angle to each other. | 06-26-2014 |
20160003045 | Integrated Volumetric Energy Recovery and Compression Device - Power-generation systems including a power plant and a power conversion unit including an energy recovery device and volumetric compressor are disclosed. In one embodiment, the volumetric fluid compressor has first and second meshed rotors and is configured to generate a stream of relatively high-pressure fluid including oxygen to the power plant. In one embodiment, the volumetric fluid energy recovery device having third and fourth meshed rotors, operatively connected to the compressor, and configured to be rotated by the exhaust gas or other fluid deriving energy from the exhaust gas. The system can additionally include a set of timing gears configured to operatively connect the first and second rotors of the compressor to the third and fourth rotors of the energy recovery device, and prevent contact between the first and second rotors and between the third and fourth rotors. The system may also include a rotation transferring link for operative connection between the compressor and the energy recovery device. | 01-07-2016 |