Abstract:
A radical flow mechanism is provided having a symmetric housing assembly defining a hollow rotor chamber. A symmetric shaft and rotor assembly is supported for rotation in the rotor chamber. A plurality of radial flow paths are defined by the rotor and the housing assembly. The assembled module may be powered by a pressurized motive fluid that flows radially inward to rotate the rotor. Alternatively, the rotor may be driven by an external power source so that a working fluid increases in potential energy as it moves centrifugally outward. The assembled module is symmetric about the rotor member so that the rotor can be orientated for either direction of rotation and so that power takeoff or power connection can be to either side of the module. Also, the module is constructed so that the seals are located at an interface having a low pressure differential and the bearings are located adjacent an area encouraging heat dissipation.
Abstract:
The present invention includes an overhung turbine wheel which is provided with at least one ring of turbine blades and is connected with a shaft. In order to control the thermodynamically required circumferential speeds necessary to achieve maximum efficiency, the turbine wheel is designed as a closed disk which is narrow in the axial direction. The turbine wheel is integral with the turbine blades and furthermore is connected to the shaft through planar connecting surfaces having interfitting teeth. The turbine wheel has a relatively low mass, and the interfitting teeth allow a simple and optimal centering connection. Radial-flow turbines of this kind are standardized in model series, the turbine wheels and shafts in each case being provided with similar interfitting teeth to allow mutual combinations as desired.
Abstract:
A turbine housing construction particularly adapted for use with turbochargers for internal combustion engines. A vortex transition duct is inserted between the source of exhaust gas for driving the turbine and the exhaust gas inlet of the turbine volute. In prior turbocharger constructions, the distribution of the velocity of the exhaust gas fed to and as seen by the turbine volute inlet is uniform. Yet, it is desirable that the radial velocity distribution of exhaust gases entering the turbine volute be of a free vortex distribution. The vortex transition duct of this invention transforms the uniform radial velocity distribution of the exhaust gases, prior to their entry into the turbine volute inlet, into a free vortex distribution.
Abstract:
A turbine having a radial inlet to the turbine wheel is provided with a multi-stage stator wherein the vanes of its separate stages are fixed at different angles of incidence. The stator is mounted for movement so that each of its stages may be positioned in alignment with said opening. The vanes of one stage of the stator are inclined relative to the inlet to produce forward rotation of the turbine wheel while those of another stage are inclined oppositely to produce reverse rotation thereof. The system includes means for positioning the stator so that the vanes of two adjacent stages thereof are located in partial alignment with the inlet opening so as to regulate the power output of the turbine to a neutral state.
Abstract:
The turbine has an ambient pressure runner rotatable about a vertical axis. An annular row of radially curved vanes extends between the runner periphery and a center discharge. A surrounding volute directs an accelerated flow of water to the runner periphery with flow conditions such that supercritical flow enters the runner and is maintained across each vane rear face. These operational conditions are dependent upon volute design, available water head values, water entry angle, number of vanes and runner vane design.
Abstract:
A housing surrounds a rotatable turbine wheel having an axis of rotation and effects a uniform fluid wheel boarding state. The housing includes at least one elongated substantially spiral passageway which encompasses the periphery of the wheel. The passageway has an external peripheral fluid inlet and an internal fluid outlet, the latter encompassing the wheel periphery. The passageway is defined by a pair of opposed axisymmetrical side walls having an inner diameter proximate the periphery of said turbine wheel. An outer wall extends between the two side walls circumferentially around at least 360.degree. of the turbine axis. The radial location of the outer rail is defined by the path prescribed by the direction of fluid flow in a free vortex constrained by the side walls. Disposed within the passageway and extending substantially throughout same may be a multi-portion generally helical partition. The portions thereof are mounted for selective transverse movement relative to the longitudinal axis of the passageway.
Abstract:
A radial turbine having rotor blades, each positioned against the exit surface of the turbine at an angle equal to the angle of the relative velocity, between a gas flow pattern simulating the actual velocity of combustion gas flow through a space between two adjacent turbine blades and a rotating turbine rotor blade, against the turbine exit surface.
Abstract:
A wind driven power apparatus for converting wind to mechanical energy is disclosed which includes a fixed axis turbine supported centrally of a fixed air guide defining a plurality of horizontal air passages disposed circumferentially of the turbine and each being adapted to receive an air stream therein coming from a limited range of wind directions and effect accelerated air flow toward the turbine. In one embodiment, an air guide block is disposed circumferentially of the turbine and is rotatable about the axis of the turbine to direct accelerated air flow to the turbine from the windwardly facing ones of the air passages, while in alternative embodiments means are provided for selectively closing off the air passages so that accelerated air flow from selected air passages is directed to the turbine.
Abstract:
This invention relates to a turbine housing which includes at least two separate passageways for receiving a flow of fluid and carrying same to a volute section for introduction to a turbine wheel, a first of said passageways being arranged to surround at least 160.degree. of a second of said passageways at the termination of said second passageway, the termination of said second passageway being at or upstream of the start of the volute section of the housing. The invention also includes a turbine and a turbocharger including the housing of the invention and an internal combustion engine in combination with such a turbocharger, and further includes the turbine housing of the invention in combination with an exhaust system in which exhaust ducts merge together at least one duct surrounding at least 160.degree. of another duct at the point of juncture.
Abstract:
Refrigeration system including a multi-stage compressor and two work expansion engines of the turbine type with the impellers of the expansion engines and the impeller of the final stage of the compressor being mounted on a common shaft. The work developed in the expansion engines provides the total power required for the final stage of the compressor and the final stage of the compressor provides the pressurized gas expanded in both expansion engines.