Abstract: An article, such as an impeller, is mounted for torque transmission by a shaft by positioning the article in contact with a threaded collar engaging tapered threads on the shaft and applying an axial force to the article to move and tighten the threaded collar on the tapered threads. The axial force is applied to the article by a clamping collar which contacts the article only in an area spaced from a central bore of the article in order to deflect a portion of the article defining the central bore radially inward toward the shaft. In one embodiment, two impellers are positioned back-to-back, with one impeller receiving an axial force spaced radially from a central bore of the impeller by an annular formation on the other impeller.

Abstract: An article, such as an impeller, is mounted for torque transmission by a shaft by positioning the article in contact with a threaded collar engaging tapered threads on the shaft and applying an axial force to the article to move and tighten the threaded collar on the tapered threads. The axial force is applied to the article by a clamping collar which contacts the article only in an area spaced from a central bore of the article in order to deflect a portion of the article defining the central bore radially inward toward the shaft. In one embodiment, two impellers are positioned back-to-back, with one impeller receiving an axial force spaced radially from a central bore of the impeller by an annular formation on the other impeller.

Abstract: In a centrifugal compressor the drive shaft of the compressor is driven by a step up gear mechanism including an input shaft driving a central drive gear, an output gear mounted on the compressor drive shaft, and three gear trains extending from the central drive gear and the output gear. Two impellers to provide two stages of compression are mounted back to back on the inner end of the compressor drive shaft. The input shaft of the gear train mechanism comprises a quill shaft surrounded by a hollow shaft fixed by friction to the inner end of the quill shaft. A rubbing seal is provided between the outer end of the hollow shaft and the compressor casing. The compressor drive shaft is supported on its outer end by the gear train mechanisms and at its middle and near its inner end by angular contact ball bearings. The portion of the compressor drive shaft between the ball bearing at the middle of the shaft and the outer end of the drive shaft is a flexible quill shaft.

Abstract: In a step-up gear drive mechanism, three gear trains are provided between an input shaft and an output shaft to share the torque transmitted between the input shaft and the output shaft. Each gear train comprises a pinion gear meshing with a central drive gear and mounted on a gear shaft. An output drive gear is threadably mounted on each gear shaft and positioned to mesh with the central output gear. The input drive gear is coaxially mounted on the input drive shaft and the pinion gears support the central drive gear and the distal end of the input drive shaft. The output gear is coaxially mounted on the output drive shaft and the output drive gears support the output gear and the proximal end of the output drive shaft. Collars are threadably mounted on the gear shafts to frictionally engage the output drive gears tending to fix the angular position of the output drive gears on the gear shafts.

Abstract: Provided is a combustion chamber for producing a pressurized gas containing: a wall structure defining an interior chamber; a first reflecting surface for reflecting a pressure wave within said interior chamber; a second reflecting surface for reflecting said pressure wave within said interior chamber, wherein said first and second reflecting surfaces being constructed and arranged to resonate said pressure wave in said interior chamber; at least one first inlet for introducing a first gas into said interior chamber; and at least one outlet from said interior chamber for drawing off a pressurized gas from said interior chamber. Also provided is a turbine engine containing the combustion chamber, and an electrical generating power plant containing the turbine engine.

Abstract: Provided is a combustion chamber for producing a pressurized gas containing:

Abstract: Provided is a combustion chamber for producing a pressurized gas containing: a wall structure defining an interior chamber; a first reflecting surface for reflecting a pressure wave within said interior chamber; a second reflecting surface for reflecting said pressure wave within said interior chamber, wherein said first and second reflecting surfaces being constructed and arranged to resonate said pressure wave in said interior chamber; at least one first inlet for introducing a first gas into said interior chamber; and at least one outlet from said interior chamber for drawing off a pressurized gas from said interior chamber. Also provided is a turbine engine containing the combustion chamber, and an electrical generating power plant containing the turbine engine.

Abstract: An inlet screen for an ocean thermal power plant has an outer side parallel to the ocean current and a plurality of parallel bars extending at an acute angle to the horizontal, wherein the acute angle opens toward the upstream direction of the current. The total area of through openings in the inlet screen receive the predetermined flow requirement of the power plant at a velocity no greater than 0.5 feet per second, so that fish are not sucked against the screen. The vertical spacing between the bars is no greater than one-half of the inner diameter of tubes in heat exchangers in the plant. The spacing between bars is at a minimum at the outer side of the screen, and the spacing increases between the outer side and the inner side, so that objects do not become wedged between the bars. The inlet screen extends sufficiently below the ocean level to accommodate the plant's water flow requirement at a velocity of no greater than 0.

Abstract: Provided is a combustion chamber for producing a pressurized gas containing:

Abstract: Provided is a combustion chamber for producing a pressurized gas having a wall structure defining an interior chamber, an explosion chamber disposed within the interior chamber, an annular chamber connected to the explosion chamber, a first reflecting surface for reflecting a pressure wave within the interior chamber, a second reflecting surface for reflecting the pressure wave within the interior chamber, at least one inlet for introducing a first gas into the interior chamber, and at least one outlet from the interior chamber for drawing off a pressurized gas from the interior chamber.

Abstract: Provided is a combustion chamber for producing a pressurized gas containing: a wall structure defining an interior chamber; an explosion chamber disposed within the interior chamber and arranged such that compressed air can contact an exterior surface of the explosion chamber to cool it, a first reflecting surface for reflecting a pressure wave within the interior chamber; a second reflecting surface for reflecting the pressure wave within the interior chamber, wherein the first and the second reflecting surfaces are constructed and arranged to resonate the pressure wave in the interior chamber; at least one first inlet for introducing a first gas into the interior chamber; and at least one outlet from the interior chamber for drawing off a pressurized gas from the interior chamber.

Abstract: Provided is a combustion chamber for producing a pressurized gas containing: a wall structure defining an interior chamber; a first reflecting surface for reflecting a pressure wave within the interior chamber; a second reflecting surface for reflecting the pressure wave within the interior chamber, wherein the first and second reflecting surfaces are constructed and arranged to resonate the pressure wave in the interior chamber; at least one first inlet for introducing a first gas into the interior chamber; and at least one outlet from the interior chamber for drawing off a pressurized gas from the interior chamber. Also provided is a turbine engine containing the combustion chamber, and an electrical generating power plant containing the turbine engine.

Abstract: The invention relates to an intercooled gas turbine having at least two air compression stages, and at least one nozzle for supplying a liquid coolant to air travelling between the at least two air compression stages. The invention also relates to a method for intercooling a gas turbine having at least two compression stages in which a liquid coolant is supplied to air travelling between the at least two compression stages, whereby the liquid coolant cools the air.

Abstract: The invention relates to a method for preventing ice from forming on a cooling system for air by adding an antifreeze to the air being cooled by the cooling system. The cooled air containing the antifreeze is then transferred a turbine engine, wherein the air and antifreeze are burned in the turbine engine. A condensed water and antifreeze mixture is also burned in the turbine engine. The invention also relates to an apparatus for preventing ice from forming on the refrigeration system for cooling air. The apparatus includes a sprayer for spraying the antifreeze onto the refrigeration system and/or the air being cooled by the refrigeration system, a collector for collecting a condensed water and antifreeze mixture, and a pump or transferring means for transferring the condensed water and antifreeze mixture to the turbine engine, where the antifreeze and condensed water mixture is burned.

Abstract: A threaded hub and shaft connection includes a first hub threaded onto a first section of the shaft using a thread shape having a working face rise angle of from 7 to 25 degrees. Preferably a second hub is threaded onto a second section of the shaft inboard of the first hub, and the threads in the second hub and second shaft section also have a working face rise angle of from 7 to 25 degrees. Bolts or set screws engage both of their hubs in such manner as to exert axial force on at least the first hub tending to move the first hub relative to the shaft in the working face rise direction of the thread carrying the first hub.

Abstract: A method and apparatus for recovery of heat from the flue gas of the combustion furnace of a steam boiler or power generation plant uses a heat pump heat extracted from a lower temperature point in the system to a higher temperature point in the system. The flue gas is passed through an economizer to preheat the boiler feed water. The flue gas then passes to a direct contact gas cooler where a second stream of cooling water extracts heat from the flue gas. The second stream of cooling water is passed through the evaporator of the heat pump to heat a refrigerant. The refrigerant is compressed and then condensed in thermal contact with the boiler feed water to heat it before it enters the economizer. In a second embodiment a power generation plant has a steam turbine and an auxiliary vapor turbine. The flue gas is passed through a gas cooler and gives up heat to a stream of cooling water.

Abstract: A plurality of sealed tubes, pipes or the like constituting the wall of a relatively large diameter pipe that is susceptible of being submerged and which has buoyant or semibuoyant walls. The tubes or pipes are arranged parallel to one another in a circular pattern with their axes parallel to the axis of the large diameter pipe and said tubes are sealed to one another along their length. A suitable clamping device is positioned upon said tubes or pipes to prevent them from collapsing over each other which acts as a positive stabilizer while maintaining said tubes or pipes in alignment in a circle.

Abstract: An assembly of a plurality of heat exchange units arranged in stacked formation in separate banks with a plurality of vapor and liquid manifold elements interposed between said banks and connected thereto by suitable conduits. The various layers of each stacked bank includes a plurality of heat exchange units arranged in a common horizontal plane with the manifold elements connected to each unit.

Abstract: Apparatus for deaerating a stream of warm surface sea water for removing a portion of the gases from the water prior to its entry into a heat exchanger or boiler. The gases, such as oxygen, can be removed by subjecting the warm surface sea water to a vacuum after which the water, having been collected at a plurality of sources, is fed in separate passageways to a common plenum chamber from where the water is discharged through the passages of the boiler or heat exchanger into the ocean.

Abstract: A heat exchanger fabricated from a plurality of plates arranged in spaced parallel relation with one another as a stack or assembly that is positioned between pressure plates. The stack of plates are arranged to define fluid and vapor passages with the entire assembly, including cover members, being held together by suitable clamp plates. A flow control element is positioned in the exchanger to control the flow of the incoming liquid, as well as any recirculating liquid, in the delivery of said liquid to the boiling passages.