Abstract: An improvement for a turbine generator or pump having main bearings separated by a span of shaft and a thrust equalizing mechanism adjacent one of said main bearings, the improvement comprising a stationary length compensator interposed between the thrust equalizing mechanism and its adjacent main bearing to reduce the span between said main bearings. Preferably the length compensator is composed of material that shrinks less than the shaft of the generator, and the height of the length compensator, i.e., the compensating dimension, is selected according to desired thrust equalizing mechanism operating parameters over a temperature range.

Abstract: The present disclosure provides an improved multistage cryogenic liquefied gas expander for transforming the energy of a pressurized liquefied gas into electric energy, capable of operating at variable speeds, the improvement being a multistage cryogenic liquefied gas expander having at least two stages where only the first stage has a non-rotating nozzle ring having a plurality of adjustable position guide vanes.

Abstract: A power recovery system using the Rankine power cycle incorporating a two-phase liquid-vapor expander with an electric generator which further consists of a heat sink, a heat source, a working fluid to transport heat and pressure energy, a feed pump and a two-phase liquid-vapor expander for the working fluid mounted together with an electric generator on one rotating shaft, a first heat exchanger to transport heat from the working fluid to the heat sink, a second heat exchanger to transport heat from the heat source to the working fluid.

Abstract: An improvement for a turbine generator or pump having main bearings separated by a span of shaft and a thrust equalizing mechanism adjacent one of said main bearings, the improvement comprising a stationary length compensator interposed between the thrust equalizing mechanism and its adjacent main bearing to reduce the span between said main bearings. Preferably the length compensator is composed of material that shrinks less than the shaft of the generator, and the height of the length compensator, i.e., the compensating dimension, is selected according to desired thrust equalizing mechanism operating parameters over a temperature range.

Abstract: A cryogenic turbine expander system which consists essentially of a cryogenic liquid pressure vessel, and the vessel further accommodating a turbine expander, an internal bypass configuration, which are operable in parallel, a three-way valve to direct incoming high pressure liquefied gas flow to the turbine expander, or the internal bypass configuration, which further consists a Joule-Thomson valve, when the turbine expander is not operational.

Abstract: A single cryogenic liquid vessel in which two cryogenic machines are disposed, supported and operable in tandem. In one embodiment the two cryogenic machines are operable in series or individually, and in another embodiment the two cryogenic machines are operable in parallel or individually. Preferably the machines are supported intermediately relative to the vessel, or at a top of the vessel. In various embodiments the machines are pumps or turbines or expanders.

Abstract: An improvement for a turbine generator or pump having main bearings separated by a span of shaft and a thrust equalizing mechanism adjacent one of said main bearings, the improvement comprising a stationary length compensator interposed between the thrust equalizing mechanism and its adjacent main bearing to reduce the span between said main bearings. Preferably the length compensator is composed of material that shrinks less than the shaft of the generator, and the height of the length compensator, i.e., the compensating dimension, is selected according to desired thrust equalizing mechanism operating parameters over a temperature range.

Abstract: A compact assembly of a liquefied natural gas, (LNG)-mixed hydrocarbon refrigerants, (MR), arranged on a single shaft assembly for individual expanding the LNG and MR streams including sealing means for separating and isolating the processing of a LNG stream and MR stream at a pre-selected location intermediate the ends of the single shaft assembly. The liquefied natural gas, LNG, stream is coupled to a hydraulic turbine expander mounted on the single shaft assembly adjacent a first end thereof. The hydraulic turbine expander has two phase expansion capabilities. The hydraulic expander is enclosed in a vessel mounted between one end of the sealing means and beyond the first end of the shaft assembly for isolating the expander. The LNG stream and the vessel are arranged to traverse a pre-selected path within the vessel. The compact assembly may include a induction motor means mounted to the shaft assembly adjacent the sealing means.