| Patent Number |
Title Of Patent |
Date Issued |
| 6310414 |
Shaft bearing system |
October 30, 2001 |
| A turboexpander associated with a rotary compressor by means of a rotor shaft connecting the two. A bearing housing includes magnetic radial and thrust bearings which control the placement and dynamics of the shaft within the housing. A control passageway extends from the inlet of the |
| 5769602 |
Active automatic clamping control |
June 23, 1998 |
| An automatic control of clamping forces in primary nozzle systems of radial turbines. Pressure to an closed annular volume positioned between a turbine housing and an axially adjustable mounting ring is varied to regulate the clamping forces against inlet vanes which form primary noz |
| 5651661 |
Multi-stage rotary fluid handling apparatus |
July 29, 1997 |
| Rotary fluid handling apparatus employing a wheel to provide multi-stage compression or expansion. A wheel having a first set of vanes includes a shroud about those vanes with a second set of vanes outwardly of the shroud. One set of vanes provides for low specific speed flow while the |
| 5564895 |
Active automatic clamping control |
October 15, 1996 |
| An automatic control of clamping forces in primary nozzle systems of radial turbines. Pressure to an closed annular volume positioned between a turbine housing and an axially adjustable mounting ring is varied to regulate the clamping forces against inlet vanes which form primary noz |
| 5555745 |
Refrigeration system |
September 17, 1996 |
| A refrigeration system employing a motor driven compressor with an associated turboexpander coupled to the motor of the compressor. The compressor draws incoming air through a heat exchanger and a dehydrator. The compressor discharges compressed air through a high temperature heat ex |
| 5553458 |
Noncontaminating energy disipator and a method for optimizing turboexpanders |
September 10, 1996 |
| A closed-loop system that dissipates energy from an expander and does not contaminate the expander. The noncontaminating energy dissipator has a closed-loop conduit that is connected to a compressor, a pressure reduction valve and a heat exchanger. A brake gas circulates in the close |
| 5545006 |
Multi-stage rotary fluid handling apparatus |
August 13, 1996 |
| Rotary fluid handling apparatus employing a wheel to provide multi-stage compression or expansion. A wheel having a first set of vanes includes a shroud about those vanes with a second set of vanes outwardly of the shroud. One set of vanes provides for low specific speed flow while the |
| 5045711 |
Turboexpander-generator |
September 3, 1991 |
| A turboexpander-generator system employing a housing with a rotatably mounted shaft oriented vertically with a turboexpander associated with the upper end of the housing and shaft, a generator associated with the housing and shaft below the turboexpander and a lubricant pump located at |
| 5002459 |
Surge control system |
March 26, 1991 |
| A surge control system for a compressor comprising a bypass passage controlled by a bypass valve to return flow to the compressor inlet for avoiding surge in the compressor. The bypass valve is controlled through a sensing of a compressor speed and flow. The compressor speed and the |
| 4789300 |
Variable flow turbine expanders |
December 6, 1988 |
| A radial inflow turbine having an axial discharge divided into concentric passages. The inner concentric passage or passages may be selectively blocked by means of a valve to accommodate a first range of flow rate. At higher flow rates, the valve is open to increase the effective nozzle |
| 4722663 |
Seal-off mechanism for rotating turbine shaft |
February 2, 1988 |
| A seal-off mechanism for preventing migration of working fluid along a turbine shaft which includes a floating seal ring and a shaft shoulder. The seal ring is spring biased against the shaft shoulder. During turbine operation, a pressurized fluid moves the ring away from the shoulder. T |
| 4695221 |
Turbine shutdown control system |
September 22, 1987 |
| A turbine shutdown control system for controlling a turbine powering two load groups. Upon loss of one load group, a first control valve will close to interrupt the fluid flow to the turbine. A second modulating valve in parallel with the first valve remains open to provide sufficient fl |
| 4606652 |
Shaft seal for turbomachinery |
August 19, 1986 |
| A cryogenic turboexpander employing a rotor and a shaft fixed thereto including bearings rotatably supporting the shaft having a pressurized lubricating system. A labyrinth seal is positioned between the bearings and the rotor. A control valve is employed to sense differential pressure |
| 4390082 |
Reserve lubricant supply system |
June 28, 1983 |
| A system for supplying lubricant under pressure to a rotary mounting system having bearings when the main pressurized lubricant supply system fails. The system includes a bladder or other expansible chamber in association with a lubricant reservoir. The bladder has a source of pressurize |
| 4311004 |
Gas compression system and method |
January 19, 1982 |
| A system and method are disclosed for processing an oxygen-containing gas for use in a chemical process producing a generally inert gas. A fluid handling rotor is carried by a rotary shaft for effecting a pressure change in the oxygen-containing gas. A housing surrounds the rotor and the |
| 4273390 |
Bearing system with thrust compensation means |
June 16, 1981 |
| The present invention pertains to a thrust bearing system including a thrust bearing structure having at least one pair of opposed bearing faces defining a bearing space therebetween, and a sub-system for delivering lubricant to the bearing space. A load sensor is provided in association |
| 4242040 |
Thrust adjusting means for nozzle clamp ring |
December 30, 1980 |
| The invention comprises a rotary fluid handling apparatus having first and second coaxial bodies mounted for relative axial movement therebetween and having respective opposed radially facing annular surfaces. The bodies may be, for example, the stator of a turboexpander or compressor an |
