Patents

No. 10,094,284 | High Effectiveness Low Pressure Drop Heat Exchanger

No. 10,094,284 | High Effectiveness Low Pressure Drop Heat Exchanger A heat exchanger in the form of a honeycomb with a plurality of rectangular or otherwise polygon in cross-section passages which share common walls with adjacent passages. Two or more flow paths each comprises a plurality of serially connected passages. Each flow path passes through […]

No. 9,309,925 | High Speed Machining Center

No. 9,309,925 | High Speed Machining Center A micro-machine powered by an electric motor and/or a gas turbine drive and capable of rotation speeds to 1,500,000 rpm is disclosed. The micro-machine may include a rotating spindle which is constructed, balanced and arranged to provide a tool holder function and may incorporate a portion of the […]

No. 9,151,322 | Foil Journal Bearing Application to High Speed Machining Center

No. 9,151,322 | Foil Journal Bearing Application to High Speed Machining Center A foil journal bearing applicable to high speed machining and grinding machines for machining microscopic features. A single foil is secured to and supported by a hollow, generally cylindrical, housing. The foil has a length substantially equal to twice the interior circumference of […]

No. 8,801,290 | Foil Journal Bearing Application to High Speed Machining Center

No. 8,801,290 | Foil Journal Bearing Application to High Speed Machining Center A foil journal bearing applicable to high speed machining and grinding machines for machining microscopic features. A single foil is secured to and supported by a hollow, generally cylindrical, housing. The foil has a length substantially equal to twice the interior circumference of […]

No. 8,602,653 | Foil Thrust Bearing Application to High Speed Machining Center

No. 8,602,653 | Foil Thrust Bearing Application to High Speed Machining Center A foil thrust bearing applicable to high speed machining and grinding machines for machining microscopic features. Top foil segments are circumferentially spaced relative to a rotating runner for engagement by the runner when the bearing is mounted to bearing support runner rotation. Bump […]

Oil-Free Bearings and Seals for Centrifugal Hydrogen Compressor

Heshmat, H., Hunsberger, A.Z., Ren, Z., Jahanmir, S. and Walton, II, J.F.  “Oil-Free Bearings and Seals for Centrifugal Hydrogen Compressor,” (2013) Tribology Online, Japanese Society of Tribologists (8), 1, ISSN 1881-2198. Deployment of a safe, efficient hydrogen production and delivery infrastructure on a scale that can compete economically with current fuels is needed in order […]

NO. 6,965,181 | Hybrid foil-magnetic bearing with improved load sharing

NO. 6,965,181 | Hybrid foil-magnetic bearing with improved load sharing A hybrid foil-magnetic bearing wherein the foil and magnetic bearing parts share the load at predetermined speeds or operating conditions. Force, flux, strain, temperature, or acceleration sensors provide a measure proportional to actual load on at least one of the bearing parts, and this measure […]

NO. 6,770,993 | Hybrid foil-magnetic bearing with improved load sharing

NO. 6,770,993 | Hybrid foil-magnetic bearing with improved load sharing A hybrid foil-magnetic bearing wherein the foil and magnetic bearing parts share the load at predetermined speeds or operating conditions. Force, flux, strain, temperature, or acceleration sensors provide a measure proportional to actual load on at least one of the bearing parts, and this measure […]

NO. 6,717,311 | Combination magnetic radial and thrust bearing

NO. 6,717,311 | Combination magnetic radial and thrust bearing A magnetic bearing wherein axially spaced combinations of permanent magnets on a rotor and stator are polarized to levitate the rotor and positioned with the rotor magnets offset axially outwardly (or inwardly) of the stator magnets to allow a force balance to be achievable to bear […]

NO. 6,505,837 | Compliant Foil Seal

NO. 6,505,837 | Compliant Foil Seal A compliant foil seal comprising at least one smooth resilient foil for facing a rotor and at least one bump foil for providing film riding stiffness and controlled deformation of the smooth resilient foil for providing an effective seal which is capable of operating reliably in the presence of […]

NO. 6,353,273 | Hybrid Foil-Magnetic Bearing

NO. 6,353,273 | Hybrid Foil-Magnetic Bearing A method for bearing a rotor in which load is shared between a foil bearing part and a magnetic bearing part without using a calculated rotor trajectory corresponding to various rotor spin speeds. Power input to the magnetic bearing part is controlled in response to feedback of rotor position. […]

NO. 6,158,893 | High Load Capacity Compliant Foil Hydrodynamic Journal Bearing

NO. 6,158,893 | High Load Capacity Compliant Foil Hydrodynamic Journal Bearing A compliant hydrodynamic fluid film journal bearing for handling high loads. The bearing assembly includes a first thin smooth compliant sheet for facing a shaft, one or more corrugated foils, and a second sheet between the foils and the compliant sheet for supportedly underlying […]

NO. 5,961,217 | High Load Capacity Compliant Foil Hydrodynamic Thrust Bearing

NO. 5,961,217 | High Load Capacity Compliant Foil Hydrodynamic Thrust Bearing A compliant hydrodynamic fluid film thrust bearing. A circumferential row of sectors of flexible sheets are positioned to face a shaft runner for relative rotation therebetween. The flexible sheets are supported by a flexible membrane which is in turn supported by a pair of […]

NO. 5,902,049 | High Load Capacity Compliant Foil Hydrodynamic Journal Bearing

NO. 5,902,049 | High Load Capacity Compliant Foil Hydrodynamic Journal Bearing A compliant hydrodynamic fluid film journal bearing for handling high loads. The bearing assembly includes a first thin smooth compliant sheet for facing a shaft, one or more corrugated foils, and a second sheet between the foils and the compliant sheet for supportedly underlying […]

NO. 5,988,885 | High Load Capacity Compliant Foil Hydrodynamic Journal Bearing

NO. 5,988,885 | High Load Capacity Compliant Foil Hydrodynamic Journal Bearing A compliant hydrodynamic fluid film journal bearing for handling high loads. The bearing assembly includes a first thin smooth compliant sheet for facing a shaft, one or more corrugated foils, and a second sheet between the foils and the compliant sheet for supportedly underlying […]

NO. 5,883,369 | High Load Capacity Compliant Foil Hydrodynamic Thrust Bearing

NO. 5,883,369 | High Load Capacity Compliant Foil Hydrodynamic Thrust Bearing A compliant hydrodynamic fluid film thrust bearing. A circumferential row of sectors of flexible sheets are positioned to face a shaft runner for relative rotation therebetween. The flexible sheets are supported by a flexible membrane which is in turn supported by a pair of […]

NO. 5,752,774 | Zero Clearance Auxiliary Bearing for Providing Rotor Shock Tolerances

NO. 5,752,774 | Zero Clearance Auxiliary Bearing for Providing Rotor Shock Tolerances An auxiliary bearing for temporarily receiving rotor load when the main bearings are unable to receive rotor load. A plurality of rollers or sets of rollers are spaced circumferentially around the rotor. At least some of the rollers are movable between first radial […]

NO. 5,205,384 | Powder-Lubricant Damper with Wavy Damper Pads

NO. 5,205,384 | Powder-Lubricant Damper with Wavy Damper Pads

NO. 5,085,185 | Powder-Lubricant Piston Ring for Diesel Engines

NO. 5,085,185 | Powder-Lubricant Piston Ring for Diesel Engines

NO. 4,863,291 | Bearing Assembly

NO. 4,863,291 | Bearing Assembly

NO. 4,765,760 | Bearing Assembly

NO. 4,765,760 | Bearing Assembly

NO. 4,674,894 | Bearing Lubrication Device

NO. 4,674,894 | Bearing Lubrication Device

NO. 4,671,677 | Fluid Seal with Shaft Excursion Compensation

NO. 4,671,677 | Fluid Seal with Shaft Excursion Compensation

NO. 4,671,679 | Magnetic Fluid Devices such as Magnetic Fluid Bearings, Seals and the like and an Automatic Magnetic Fluid Supply Control System therefore

NO. 4,671,679 | Magnetic Fluid Devices such as Magnetic Fluid Bearings, Seals and the like and an Automatic Magnetic Fluid Supply Control System therefore

NO. 4,531,845 | Bearing Lubrication Device

NO. 4,531,845 | Bearing Lubrication Device

NO. 4,465,384 | High Load, Whirl Free, Foil Journal Bearing

NO. 4,465,384 | High Load, Whirl Free, Foil Journal Bearing

NO. 4,335,885 | Plural Fluid Magnetic/Centrifugal Seal

NO. 4,335,885 | Plural Fluid Magnetic/Centrifugal Seal

NO. 4,300,806 | Multi-Stage Support Element for Compliant Hydrodynamic Bearings

NO. 4,300,806 | Multi-Stage Support Element for Compliant Hydrodynamic Bearings

NO. 4,296,976 | Cross-Plies Support Element for Compliant Bearings

NO. 4,296,976 | Cross-Plies Support Element for Compliant Bearings

NO. 4,277,112 | Stepped, Split, Cantilevered Compliant Bearing Support

NO. 4,277,112 | Stepped, Split, Cantilevered Compliant Bearing Support

NO. 4,277,113 | Composite Material Compliant Bearing Element

NO. 4,277,113 | Composite Material Compliant Bearing Element

NO. 4,277,111 | Support Element for Compliant Hydrodynamic Thrust Bearing

NO. 4,277,111 | Support Element for Compliant Hydrodynamic Thrust Bearing

NO. 4,262,975 | Compliant Journal Bearing with Angular Stiffness Gradient

NO. 4,262,975 | Compliant Journal Bearing with Angular Stiffness Gradient