Abstract: A turbocharger comprising a central housing which has at one end a radially outwardly extending annular flange. A backplate is arranged between the center housing and the turbine wheel. The outer peripheral portion of the backplate is held between the annular flange and the turbine housing. Nozzle vanes are arranged in the exhaust gas inlet passage formed between the backplate and the turbine housing. Bush insertion bores are formed in the backplate and the annular flange. Bushes are axially and movably inserted into the bush insertion bores. The axial movement of the bushes is restricted by stop means. The shafts of the nozzle vanes are rotatably supported by the bushes.

Abstract: A turbocharger with a variable nozzle mechanism for an internal combustion engine in which nozzle vanes rotatably arranged inside of a turbine housing are driven by a disk plate rotatably arranged outside of the turbine housing and a center housing via rotation transmitting means. The disk plate is constructed as a single integral annular plate so that the inside bearing surface can be manufactured as a true circle by machining. The center housing comprises a center housing main body on which the disk plate is rotatably mounted and a flange portion which is selectively separable from the center housing main body. The outside diameter of the flange portion is constructed smaller than the inside diameter of the disk plate from the axially intermediate portion at which the disk plate is mounted up to the end portion at which the separable flange portion is fixed, in order to enable the disk plate to be mounted onto the outside surface of the center housing main body.

Abstract: A turbocharger having a variable nozzle vane assembly to be used in association with an engine. A nozzle ring having a plurality of rotatable vanes mounted thereto defining an annular passageway within the turbine housing through which exhaust gas passes upstream of a turbine. Included is a means for rotating the plurality of vanes and a means for preventing binding of the components during thermal cycling.

Abstract: A variable control mechanism for a turbine engine, in particular an exhaust gas turbine of a turbocharger, with a ring of guide blades arranged concentrically around a rotor axle and pivoting around pivot axles between end limits. The pivot axles are arranged in the forward areas associated with the inflow edges of the guide blades; one of the end limits being variable by means of an adjusting ring or the like. Clearance and impact losses are incurred depending on the prevailing setting of the guide blades. The invention provides a guide mechanism which can be constructed inexpensively and which reduces clearance and impact losses. The guide blades are arranged such that they can pivot freely within an angular setting range defined by the end limits. In case of a low load the guide blades pivot freely within the predetermined end limits, and with rising loads they abut against the variable end limit.

Abstract: Exhaust gas turbine for driving a charging compressor for an internal combustion engine has movable inlet vanes. The vanes are controlled by sensing the inlet and outlet pressure at the vanes and adjusting the vanes in accordance with these pressures in order to maximize turbine efficiency.

Abstract: A turbocharger having a variable nozzle vane assembly to be used in association with an engine. A nozzle ring having a plurality of rotatable vanes mounted thereto defining an annular passageway within the turbine housing through which exhaust gas passes upstream of a turbine. Included is a means for rotating the plurality of vanes and a means for preventing binding of the components during thermal cycling.

Abstract: A turbocharger having a variable nozzle vane assembly to be used in association with an engine. A nozzle ring having a plurality of rotatable vanes mounted thereto defining an annular passageway within the turbine housing through which exhaust gas passes upstream of a turbine. Included is a means for rotating the plurality of vanes and a means for preventing binding of the components during thermal cycling.

Abstract: Fluid handling apparatus such as a turbine, compressor, pump and the like in which stator vanes are adjustably positioned in the throat and means are provided to change the adjusted position of such vanes.

Abstract: A guide vane operating mechanism for a hydraulic machine including a main shaft carrying a runner and guide vanes for varying the angle of attack of water to the runner. A guide ring is rotatably arranged around the main shaft, with a guide vane driving mechanism being provided for a linkage between the main shaft and the guide vanes so as to drive the guide vanes between fully-open and fully-closed positions. At least one servomotor has a reciprocating actuating rod, with a guide ring actuating mechanism for transmitting the driving power to the guide ring to cause a rotation of the latter. The guide ring actuating mechanism includes means connects the actuating rod to the guide ring in such a manner so as to permit the actuating rod and the guide ring to make a cranking motion relative to each other.

Abstract: A centrifugal pump is provided for degrading antimisting fuel. The centrifugal pump has a rotary impeller closely surrounded by a vaned diffuser for receiving fuel therefrom. The diffuser includes a plurality of recirculation channels disposed along its inner circumferential surface for directing some of the fuel which passes from the impeller to the diffuser back to the impeller for enhancing the degradation of the fuel. Other embodiments are disclosed.

Abstract: The invention relates to a method of operation of a pump-turbine between part-load and reverse pumping operation in which the various operating conditions are produced by changing the position of the wicket gates in that some of the wicket gates are removed from the synchronous operation as provided by the mechanical gate ring operator and inserting a servo-motor between the wicket gate and the gate ring which functions to alter the connection between the selected wicket gates and the gate ring operator.

Abstract: A guide blade arrangement for devices for flowing medium and comprising an annular passage (20) wherein a ring of angularly adjustable guide blades (22) are arranged. Said passage is provided with an inner wall (26) separating it from a control chamber (28). Each guide blade (22) is provided with a supporting pin (36) rotatably mounted in said inner wall extending through the same and provided within said control chamber with an arm (40), the free end of which is by means of a stud (42) pivotably connected to a control member (45) common to all said arms. All said arms (40) being parallel and having the same length and said control member being constituted by a control ring (45) carried by said studs (42), whereby special supporting means for the said ring within the control chamber are avoided.

Abstract: A variable turbine inlet nozzle assembly is provided for use in high temperature environments. The nozzle assembly comprises a plurality of vanes and each vane includes a shaft extending outwardly from it. The shafts in turn are rotatably mounted to an annular mounting member so that the vanes are circumferentially spaced from each other and positioned within a gas stream passageway formed within the turbine housing between the combuster and turbine stages. An actuating assembly includes a ring rotatably mounted to the turbine housing concentrically with the mounting member while actuating arms extending between the ring and each shaft selectively rotates or pivots the vanes in unison with each other. Each vane further includes a hollow interior which is fluidly connected with the turbine engine compressor output to provide cooling to and prevent thermal distortion of the vanes.

Abstract: Adjustable guide vanes (70) are circumferentially disposed about a rotor (40) at each stage of a multi-stage turbine (10) and are slidably connected to pairs of rotatable vane rings (61, 62) at each stage, the rings and guide vanes defining nozzles (82) leading from a scroll case (30) to the rotor at each stage, the nozzles having contoured surfaces (80) for minimizing hydraulic losses. Yoke mechanisms (104, 106) and interconnecting members (98, 100) link each pair of rotatable vane rings to a single actuator shaft (90) for synchronous adjustment of the positions of the guide vanes to vary the cross-sectional areas of the nozzles thereby permitting operation at optimum efficiency in response to changing flow rates.

Abstract: A centrifugal fluid compressor including a rotatable fluid impeller and a fluid diffuser positioned coaxially around the impeller and comprising a plurality of diffuser vanes each arranged in such a manner that the angular position of the vane with respect to the center axis of the impeller and the distance between the outer peripheral end of the impeller and the leading end of the vane are variable independently of each other.

Abstract: A diffuser for a centrifugal compressor has an annular array of vanes which is movable to vary the configuration of the diffusing passages between the vanes. Each vane includes suction and pressure surfaces joined at an inlet apex and divergent therefrom to form a wedge-shaped control surface between fixed, spaced parallel side walls of the diffuser and pivoted about the apex for varying flow area through the diffuser. Each vane has an elastomeric inner portion which is selectively inflatable to expand to either side of said wedge-shaped control surface to sealingly engage the spaced parallel side walls to seal against gas flow between the pressure surface and the suction surface on each of the vanes.

Abstract: A variable geometry gas turbine has an array of ceramic composition vanes positioned by an actuating ring coupled through a plurality of circumferentially spaced turbine vane levers to the outer end of a metallic vane drive shaft at each of the ceramic vanes. Each of the ceramic vanes has an end slot of bow tie configuration including flared end segments and a center slot therebetween. Each of the vane drive shafts has a cross head with ends thereof spaced with respect to the sides of the end slot to define clearance for free expansion of the cross head with respect to the vane and the cross head being configured to uniformly distribute drive loads across bearing surfaces of the vane slot.

Abstract: Disclosed are apparatus for controlling fluid flow including a circumferential plurality of blades mounted between a parallel pair of axially spaced annular elements. The interstitial passages between the blades may be varied by the relative rotation of one annular element functioning as a ring actuator with respect to the stationary second annular element. The orientation of the circumferential blades is adjusted in unison by cam type engagements between one of the annular elements and the blades. An appropriate axial clamping force is applied to the assembly to frictionally secure the blades between the annular rings and to prevent end leakage of the fluid between the annular rings and the blade faces adjacent to the rings. Variation in the clamping forces acting on the blades as the blades are pivotally rotated to vary the passage cross sections therebetween may be controlled by providing pressurizable pockets in the blade faces adjacent to one or both of the annular elements.

Abstract: A fluid energy convertor comprising a turbine having a cylindrically shaped interior whose exterior surface is exposed to a fluid front which is naturally accelerated while flowing around same creating a current of fluid which is contained only within a portion of a cylindrically shaped passageway, located around the outside of said cylindrically shaped interior, where contact is made between said current of fluid and a series of turbine vanes causing their movement and providing an active force on same which is transmitted by way of the turbine's structure to a centrally rotating spindle and other means for providing useful work. Multiple automatically controlled adjustable louvers assist in directing the fluid front into said passageway and in containing said current of fluid within said passageway with said louvers being adjustable to either speed-up or throttle said current of fluid as required for maximum work within limits dictated by the fluid velocity, turbine size and convertor structural strength.

Abstract: An actuator for adjustable vanes of a turbomachine includes a movable housing defining a chamber. A band is mounted within the chamber and affixed to the housing for movement therewith. A first roller is in engagement with the adjustable vanes and in contact with a first portion of the band. A second roller is in contact with a second portion of the band. A force generating device is connected to the housing for moving the housing and the band affixed thereto relative to said first and second rollers for rotating each of the rollers about its own axis, with rotation of the first roller resulting in corresponding movement of the adjustable vanes.

Abstract: A turbine and method of using the same to generate rotational power from a desired geothermal source from which a multi-phase pressurized and heated fluid is discharged, which fluid contains steam and particles of water, and may contain particles of solid material. The turbine includes a rotor plate with a number of spaced discs secured to opposite sides thereof that are rotatably supported in a housing, and the housing having two laterally spaced sets of circumferentially disposed nozzle bodies situated therein that are each adjustable to define a convergent section, a throat and a diverging section. The nozzle bodies are so adjustable that streams of fluid at maximum velocity for a multi-phase fluid having particular characteristics as to heat, pressure and water droplet content discharge tangentially onto the two sets of spaced discs to flow through the spaces therebetween in spiral paths to discharge through openings in the centers thereof.