Abstract: The fan includes a fan frame, blades positioned inside the fan frame, a grill frame on a side of the fan frame, a centerline of the grill frame traversing through a midpoint of the grill frame, a first motor configured to rotate the blades to produce an air flow in a first direction through the grill frame, the first direction being parallel to a centerline of the grill frame, a second motor configured to rotate the grill frame within the fan frame, a plurality of louvers affixed within the grill frame, the plurality of louvers including a first subset of louvers and a second subset of louvers, the first subset of louvers possessing no offset angle relative an angle of the centerline, each one of the second subset of louvers being angled toward a first side of the grill frame due to the at least one first offset angle.

Abstract: A turbocharger includes a compressor equipped with an inlet-adjustment mechanism disposed in the air inlet of the compressor, the inlet-adjustment mechanism including a plurality of arcuate blades distributed about a circumference of a circle and partially overlapping one another so as to form an uninterrupted 360-degree blade ring. Each blade is pivotable about a respective fixed pivot point such that the ring is adjustable between a maximum-open position and a minimum-open position, the ring being adjustable via simultaneous coordinated pivoting of the blades about the respective fixed pivot points. The blades are structured and arranged to form said uninterrupted 360-degree blade ring in the maximum-open position and the minimum-open position and any intermediate position therebetween.

Abstract: Disclosed herein are a dual inlet volute with an impeller and pump for same, and related methods. In one form a pump is provided comprising a motor configured to rotate a shaft, an impeller operatively coupled to the shaft, and a volute housing the impeller, the volute having a first inlet, a second inlet, and a discharge in fluid communication with the first and second inlets.

Abstract: This diffuser vane (60), of which a blade height direction is aligned with an axial direction, has an airfoil shape in cross section orthogonal to the blade height direction, and comprises a body which, starting from a leading edge at the end on the radially inner side toward the radially outer side, extends toward the front side in an impeller rotating direction (R) and reaches a trailing edge at the end on the radially outer side. In the body of the diffuser vane, the turning angle of a shroud-side blade shape (S) that is the airfoil of an end face on one side in the axial direction is different from the turning angle of a hub-side blade shape (H) that is the airfoil of an end face on the other side in the axial direction. The airfoils form a transition continuously between the shroud-side blade shape and the hub-side blade shape. The turning angle of the hub-side blade shape is smaller than the turning angle of the shroud-side blade shape.

Abstract: A variable nozzle mechanism in which a nozzle mount has a first surface which has a minimum clearance in a direction of an axis with respect to a lever side facing surface in an opposing region facing the lever side facing surface in the direction of the axis, and a second surface which is disposed adjacent to the first surface in a circumferential direction of the nozzle mount and has a clearance in the direction of the axis with respect to the lever side facing surface larger than the clearance in the direction of the axis between the first surface and the lever side facing surface.

Abstract: A variable diffuser comprises a passage, at least two vanes disposed within the passage, and at least two pennies. The passage is defined between opposing disk faces of a hub and a tip. Each of the vanes comprises a body having a leading edge and a trailing edge. The body extends between the hub face and the disk face. Each of the pennies is coupled to a respective vane body near an edge of the penny and an actuator. Rotation of at least one penny changes the orientation of the respective vane relative to the hub face.

Abstract: A hydropower system has a channel and at least one water turbine. The channel has a flowing path, two side walls, and at least one turbine recess recessed in at least one of the side walls and having an opening communicating with the flowing path. The at least one water turbine is mounted in the at least one turbine recess and has a shaft, a blade wheel, and a generator. The blade wheel is mounted on and rotatable with the shaft and partially protrudes into the flowing path. The generator is connected to the shaft. The blade wheel may be propelled to rotate by flowing water flowing through the flowing path to drive the generator to generate power.

Abstract: A gas turbine engine includes a turbine section that is configured to drive a fan through a fan shaft. The fan includes a plurality of fan blades rotatable about an axis of rotation of the gas turbine engine. A fan nacelle includes a first electrical machine component. The fan is located within the fan nacelle. A plurality of fan inlet guide vanes includes a second electrical machine component. The plurality of fan inlet guide vanes are rotatable about the axis.

Abstract: Embodiments relate to a turbine for an exhaust gas turbocharger, which has a turbine housing in which are provided a first and a second flow duct that each has an inlet region and an outlet region. A self-regulating rotary slide valve, which has an adjustable flow duct closure element, is arranged in the inlet region of the flow ducts.

Abstract: A variable vane system including an actuator; a harmonic drive driven by the actuator, a multi-planar drive gear driven by the harmonic drive, a first actuator gear mounted to a first variable vane of a first variable vane stage, the first actuator gear driven by the multi-planar drive gear, the first actuator gear comprises a drive arm, and a second actuator gear mounted to a second variable vane of a second variable vane stage, the second actuator gear driven by the multi-planar drive gear.

Abstract: In a valve drive apparatus, which drives a first valve and a second valve of a supercharger, a first rod is rotatably connected to a first valve lever shaft at one end part thereof to drive the first valve and is connected to a shaft at the other end part thereof, and a second rod is rotatably connected to a second valve lever shaft at one end part thereof to drive the second valve and is connected to a second member at the other end part thereof. A spring is placed between a first engaging part of the first member and a second engaging part of the second member and urges the first member and the second member to urge a first contact part of the first member and a second contact part of the second member toward each other.

Abstract: A centrifugal compressor for a turbocharger includes an inlet-adjustment mechanism in an air inlet for the compressor, operable to move between an open position and a closed position in the air inlet. The inlet-adjustment mechanism includes a plurality of first blades disposed about the air inlet and each pivotable about one end of the blade, and a plurality of second blades axially adjacent to the first blades and disposed about the air inlet and each pivotable about one end of the blade, the first and second blades extending through a slot in the air inlet wall when the blades are in the closed position so as to form an orifice of reduced diameter relative to a nominal diameter of the inlet. Movement of the inlet-adjustment mechanism from the open position to the closed position is effective to shift the compressor's surge line to lower flow rates.

Abstract: A variable vane system for a gas turbine engine includes a geared unison ring driven by a drive gear, the geared unison ring axially slidable parallel to an engine axis with respect to the drive gear as the rotation of the unison ring results in axial motion that is accommodated by the axial sliding between a gear mesh of the geared unison ring and the drive gear.

Abstract: A ceiling fan system wherein the motor of the ceiling fan is housed between the ceiling and the roof of an enclosure within which the ceiling fan is to be used, thereby disposing the motor out of view of occupants within the enclosure where the ceiling fan is being used.

Abstract: Methods and systems are provided for an automatic branch communication valve. In one example, a method includes rotating the valve to a second position in response to a non-electrical actuation of the valve.

Abstract: A turbocharger for an internal combustion engine having a housing, an impeller arranged in the housing interior having an impeller shaft and being mounted in a bearing block, and an intermediate element between the impeller and the bearing block. The housing includes at least one flow channel for feeding or discharging a fluid to or from the impeller, and the intermediate element includes a wall section that delimits a least a section of at least one of the flow channels.

Abstract: Provided is a well pump system that includes a pressure pipe, a rotatable shaft surrounded by a plurality of bearings, a pumping mechanism mounted to the pressure pipe and having a plurality of pump impellers mounted to a second end of the shaft, a rotating mechanism mounted to a first end of the shaft and configured for rotating it within the bearings, thereby causing the pump impellers to move the fluid in the pressure pipe, and at least one non-return valve configured for assuming at least two states including a first, opened state, in which the second pipe chamber is in fluid communication with the first pipe chamber, and a second, closed state, in which the non-return valve obstructs the fluid communication between the first and the second pipe chambers, thereby lubricating them.

Abstract: A centrifugal compressor includes a housing, an impeller, an annular diffuser passage, and an annular movable member. The diffuser passage is defined in the housing by a shroud-side wall surface and a hub-side wall surface, which face each other. The movable member is configured to be projected from one of the shroud-side wall surface and the hub-side wall surface into the diffuser passage and to be retracted from the diffuser passage. The movable member has a through hole with a passage cross-sectional area smaller than that of the diffuser passage. The other of the shroud-side wall surface and the hub-side wall surface has an abutting portion against which the movable member abuts. When the movable member abuts against the abutting portion, the upstream side and the downstream side of the movable member in the diffuser passage communicate with each other via the through hole.

Abstract: An object of the present invention is to provide a valve apparatus capable of keeping a holding state of a valve body.

Abstract: Generally, apparatuses, systems, and methods are described to vent refrigerant vapor from the refrigerant pump line using a vent line, such as during priming of the pump and/or during a startup of the compressor, directed to a relatively reduced volute casing mass of the refrigerant pump, and/or directed to returning refrigerant to an economizer or chiller component other than the condenser.

Abstract: An air check valve system configured to be mounted for fluid communication with a fan can include a ring having a generally circular inner diameter that defines an air passage through a plane of the ring. A first and a second flange can extend from the ring. A rod can have a first end mounted to the first flange and a second end mounted to the second flange. The rod can define a pivot axis. A first and a second damper plate can be mounted to the rod for rotation around the pivot axis between an open and a closed position.

Abstract: An axial-flow turbine assembly that includes one or more features for enhancing the efficiency of the turbine's operation. In one embodiment, the turbine assembly includes a turbine rotor having blades that adjust their pitch angle in direct response to working fluid pressure on the blades themselves or other part(s) of the rotor. In other embodiments, the turbine assembly is deployable in an application, such as an oscillating water column system, in which the flow of working fluid varies over time, for example, as pressure driving the flow changes. In a first of these embodiments, the turbine assembly includes a valve that allows the pressure to build so that the flow is optimized for the turbine's operating parameters. In a second of these embodiments, one or more variable-admission nozzle and shutter assemblies are provided to control the flow through the turbine to optimize the flow relative to the turbine's operating parameters.

Abstract: A turbo compression system comprises a first impeller having a first inlet and a first outlet; a second impeller having a second inlet and a second outlet; a second discharge flow path connected with the second outlet; a first discharge flow path communicating the second discharge flow path with the first outlet; a first valve provided at the first discharge flow path and controlling flowing of the fluid; a second intake flow path connected with the second inlet and selectively making the fluid flow into the second impeller; a second valve provided at one end of the second intake flow path; and a compression flow path connected with the first valve at one end of the compression flow path and connecting with the second intake flow path at the other end of the compression flow path.

Abstract: In a variable geometry turbocharger including a variable nozzle mechanism, an object is to enhance safety upon malfunction of the variable nozzle mechanism as well as to improve accuracy in the control of the variable nozzle mechanism by applying a moment that acts on the nozzle vanes in an opening direction securely and stably.

Abstract: Disclosed is a power system having a turbocharger, a VG turbocompound turbine, and a controller. The turbocharger has a turbine coupled to a compressor, and the VG turbocompound turbine positioned downstream of the turbine relative to a direction of a flow of an exhaust gas flowing through the turbine and the VG turbocompound turbine. The controller sends a signal to adjust a geometry of the VG turbocompound turbine so as to adjust a boost level being provided by the turbocharger.

Abstract: The disclosure relates to a control system for a turbo-charged engine having a variable geometry turbine driving a compressor. An intake manifold temperature sensor senses an intake manifold temperature. An intake manifold pressure sensor senses an intake manifold pressure. A turbine inlet temperature sensor senses a turbine inlet temperature. A turbine inlet pressure sensor senses a turbine inlet pressure. A control unit generates a vane position control signal which is applied to a vane control input of the turbine. The control unit generates the vane position control signal as a function of turbine inlet temperature and turbine inlet pressure.

Abstract: A torque converter is provided including a turbine with a turbine hub. A cover plate is fixed to the turbine hub. A damper assembly including a damper flange with an axially extending sleeve portion having a splined or toothed inner surface that is adapted to engage a transmission input shaft is provided. A spring is located between the cover plate and the damper flange for transferring torque from the turbine hub to the transmission input shaft via the damper flange. The turbine hub includes axially protruding tabs that contact an outer surface of the sleeve portion to center the turbine hub on the sleeve portion. The turbine hub also includes a radially inwardly extending portion that at least partially overlaps an axial end of the sleeve portion.

Abstract: Provided is a compressor system including: a guide vane; a compressor compressing a fluid flowing from the guide vane; a drive unit connected to the compressor and driving the compressor; a guide flow path connecting the compressor and an external device; a branch flow path branching off from the guide flow path; a flow control valve opening and closing the branch flow path; a sensor unit measuring a current of the drive unit and a pressure of the guide flow path; and a control unit controlling at least one of the guide vane, the drive unit, and the flow control valve, calculating an operation point of the compressor, comparing the operation point of the compressor with a greater one of a first anti-surge control line and a second anti-surge control line and controlling the flow control valve according to the comparison.

Abstract: An assembly can include a compressor housing, an adjustable wall disposed within the compressor housing that defines an air inlet to an inducer portion of a compressor wheel, and an adjustment mechanism to adjust the wall and thereby adjust at least a diameter of the air inlet. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.

Abstract: An electronic device includes an air dam module. The air dam module includes a frame defining a vent, a first rotating member, a second rotating member, and two third rotating members. The first rotating member is rotatably connected to a surface bounding the vent, to vertically block a lower half of the vent by its gravity. The second rotating member is rotatably connected to the surface bounding the vent. The third rotating members are rotatably connected to opposite ends of the second rotating member. The second and third rotating members vertically block an upper half of the vent by their gravities.

Abstract: Wastegate assemblies and turbocharger assemblies including the wastegate assemblies are described. The wastegate assemblies include a housing enclosing both an actuator and a valve. The valve is operatively coupled to the actuator and the housing terminates with a crush seal. The housing also includes a mounting member connectable to a turbocharger to place the crush seal in sealing engagement with a wastegate opening in the turbocharger. The turbocharger assemblies include a housing enclosing a turbine and a compressor wheel that are operatively coupled together on a common shaft that defines an axis of rotation, and have a wastegate assembly removably mounted to an outlet end of the housing proximate the turbine and extending therefrom in a direction away from the turbine and the compressor wheel. Here, the wastegate assembly has a longitudinal axis that is parallel to the axis of rotation.

Abstract: A method is provided for operating a gas turbine in a power station in which limits of the operating concept, which provide limits for optimization of the power station operation in respect of efficiency, service life consumption, emissions and power provision to the grid system, are adapted during operation. In particular, temperature limits and compressor inlet guide vane position limits are varied as a function of the optimization aims. A gas turbine power station is also provided for carrying out the method.

Abstract: In a fluid energy machine, such as an exhaust gas turbocharger of an internal combustion engine of an automobile, with a casing accommodating a rotor wheel that is rotatable about a first axis of rotation extending in the axial direction of the casing, an inlet flow passage which extends generally in a flow direction at an angle relative to the axial and the radial directions to the housing, the flow passage is formed by spaced insertion elements with spherical sections that have a common center of curvature disposed on the first axis of rotation and guide vanes are supported between the spaced spherical wall sections of the insertion elements so as to be rotatable about a second axis of rotation which extends through the common center of curvature, and have opposite axial end walls also curved spherically with a center of curvature coinciding with the center of curvature of the insertion elements thereby to be pivotable between the two spaced spherical wall sections of the insertion elements with minimal cle

Abstract: It is intended to achieve weight reduction and production reduction of a nozzle mount for pivotably supporting a drive ring constituting a variable nozzle mechanism, and is characterized by: providing on an end face of a guide part 5a a nail pin 20 having a flange portion and being positioned so as to hold a drive ring 3 of a variable nozzle mechanism 100 to the guide part 5a of a nozzle mount 5 in the thrust direction, and setting the thrust-directional width of the drive ring 3 smaller than the width of the guide part 5a, and providing an adjusting member 20c between the flange portion of the nail pin 20 and the end face of the guide part 5a to adjust a distance between the side face of the nozzle mount and the flange portion of the nail pin 20.

Abstract: It is provided with: a variable nozzle mechanism for regulating a flow of exhaust gas to a turbine rotor; a link mechanism for converting reciprocal displacement from an actuator that operates a variable nozzle mechanism into rotational displacement and transmitting the rotational displacement to an inner section of a bearing housing; and an engaging part for engaging an output section of the link mechanism and an input section of the variable nozzle mechanism, and the engaging part is constituted by a pin and a pin insertion slot where the pin is inserted, and a smooth surface is formed around an insertion position of the pin so as to guide a tip of the pin to the insertion position.

Abstract: A method of controlling the angular orientation of at least one variable fluidfoil. The method includes the steps of receiving detected fluidfoil angular orientation data for the at least one fluidfoil; receiving a fluidfoil angular orientation demand; generating a modified angular orientation demand by modifying the fluidfoil angular orientation demand before it is used to control adjustment of the at least one fluidfoil, the modification being performed using the detected fluidfoil angular orientation data; and outputting the modified demand and controlling the at least one fluidfoil angular orientation in accordance with the modified demand.

Abstract: A variable displacement exhaust turbocharger is provided with a plurality of nozzle vanes that are rotatably supported by a nozzle mount, a drive ring that is interlocked with an actuator and fits to a guide part of the nozzle mount, a lever plate having one end coupled to the drive ring and the other end coupled to the nozzle vane, and a variable nozzle mechanism that varies the vane angle of the nozzle vane by rotating the drive ring. A bulge suppressing portion is provided for absorbing bulging occurring on an outer peripheral surface of the guide part, the bulging being caused by the press-fitting of a nail pin into a press-fitting hole in a direction slightly toward the rotational axis with respect to the guide section and following the axial direction of the nozzle mount.

Abstract: A method for manufacturing an apparatus with a flow passage includes providing a preform apparatus with a preform flow passage. Flow area of the preform flow passage is determined to provide determined flow area data. The determined flow area data is compared to reference flow area data to provide flow area comparison data. The preform apparatus is chemical milled based on the flow area comparison data.

Abstract: A turbocharger includes a turbine wheel mounted within a turbine housing and connected to a compressor wheel by a shaft. The turbine housing defines an exhaust gas inlet connected to a volute that surrounds the turbine wheel, and an axial bore through which exhaust gas that has passed through the turbine wheel is discharged from the turbine housing. The turbine housing further defines an annular bypass passage surrounding the bore and arranged to allow exhaust gas to bypass the turbine wheel. An annular bypass valve is disposed in the bypass passage. The bypass valve includes a fixed annular valve seat and a rotary annular valve member arranged coaxially with the valve seat. The valve member is disposed against the valve seat and is rotatable about the axis for selectively varying a degree of alignment between respective orifices in the valve seat and valve member.

Abstract: A turbocharger includes a turbine wheel mounted within a turbine housing and connected to a compressor wheel by a shaft. The turbine housing defines an exhaust gas inlet connected to a volute that surrounds the turbine wheel, and an axial bore through which exhaust gas that has passed through the turbine wheel is discharged from the turbine housing. The turbine housing further defines an annular bypass passage surrounding the bore and arranged to allow exhaust gas to bypass the turbine wheel. An annular bypass valve is disposed in the bypass passage. The bypass valve comprises a fixed annular valve seat and a rotary annular valve member arranged coaxially with the valve seat. The valve member is disposed against the valve seat and is rotatable about the axis for selectively varying a degree of alignment between respective orifices in the valve seat and valve member.

Abstract: A fan (100) has a fan housing (110). The latter has an air entrance opening (120) and an air exit opening (130). It further has a swivel joint arrangement (180) having at least one swivel joint (145, 147, 155, 157, 165, 167, 175, 177) that is arranged on a joint carrier (188; 188?); at least one non-return flap (140, 150, 160, 170) that is journaled rotatably by means of the at least one swivel joint (145, 147, 155, 157, 165, 167, 175, 177) and, in its closed position, at least partly closes off the air exit opening (130); and at least one elastic return member (142, 152, 162, 172) that is associated with the at least one non-return flap (140, 150, 160, 170) and urges it toward its closed position.

Abstract: An exemplary valve device for controlling flow of a turbomachine fluid includes a housing having a first inlet at a first elevation, a second inlet at a second elevation higher than the first elevation, and an outlet. A flow control member is within the housing. The flow control member in a positive g-force environment is biased toward a first position that permits flow through the first inlet to the outlet. The flow control member in a negative g-force environment is biased toward a second position that restricts flow through the first inlet to the outlet.

Abstract: Methods, apparatus, and products are disclosed for improving the airflow exiting a blower that has one or more adjustable guide vanes that are affixed to the blower at one or more pivot points located in an outlet of the blower that include: determining a rotational speed of an impeller in the blower and adjusting a position of at least one of the adjustable guide vanes in dependence upon the rotational speed of the impeller.

Abstract: A system and method for rapid pressurization of a motor compartment and cooling system during a shutdown, a surge, and/or other situations in which the suction pressure significantly varies. A motor/compressor arrangement includes a seal gas system fluidly communicating with the motor compartment via a motor pressurization line, with the outlet of the compressor, and with a shaft seal. A motor pressurization valve is coupled to the motor pressurization line and a controller is configured to open the motor pressurization valve at start-up of the motor-compressor to supply seal gas to the motor compartment and to pressurize the motor compartment when a difference between the seal gas supply pressure and the suction pressure is indicative of the seal gas supply pressure being insufficient.

Abstract: Methods, apparatus, and products are disclosed for improving the airflow exiting a blower that has one or more adjustable guide vanes that are affixed to the blower at one or more pivot points located in an outlet of the blower that include: determining a rotational speed of an impeller in the blower and adjusting a position of at least one of the adjustable guide vanes in dependence upon the rotational speed of the impeller.

Abstract: This invention relates to a turbine for extracting energy from an oscillating working fluid. The turbine includes a housing defining a flow passage for the working fluid. An energy conversion unit is disposed in the housing. Flow control means is selectively movable to occlude a predetermined portion of the flow passage such that the working fluid is directed to act on a certain section of the energy conversion unit.

Abstract: It is intended to provide a rotary machine provided with an atmosphere relief mechanism by which damage of a rupture disc when attaching the disc can be prevented and which can withstand use over a long period of time. The rotary machine is provided with a casing and an atmosphere relief mechanism 20 for closing an opening 12 for atmospheric release formed in the casing and relieving pressure of inner fluid to atmosphere when a pressure in the casing rises. The atmosphere relief mechanism 20 includes: a rupture disc 24 configured to rupture when the pressure in the casing reaches a predetermined pressure; a pair of annular holding parts 22, 27 arranged to hold an outer edge of the rupture disc 24 from both sides; a plurality of fastening members 29 for fastening the pair of annular holding parts 22, 27 to each other so as to hold the rupture disc 24 between the pair of annular holding parts 22, 27; and an annular spacer part 25 provided along an outer circumference of the rupture disc 24.

Abstract: A product comprising a turbine torsionally connected to a compressor, a housing for said turbine, a housing for said compressor fixed with respect to said turbine housing, and an exhaust gas recirculation valve mounted on at least one of said turbine or said compressor housings.

Abstract: An airflow shielding device is configured for being secured to fan and includes a first member, a second member, and a plurality of shielding pieces. The first member defines a first through opening. The second member defines a second through opening corresponding to the first through opening. The shielding pieces are rotatably secured between the first member and the second member and rotate between a closed position, where the shielding pieces cover the first through opening, and an open position, where the shielding pieces are located so that air can flow through the first and second through openings.

Abstract: The present invention relates to a cooling system of a refrigerator, particularly of a refrigerator including a refrigeration compartment and a freezer comprising a compressor attached to at least one condenser by a segment of a refrigerant tube, wherein a first refrigerant line leaves from the condenser and returns to the compressor, and a second refrigerant line leaves from the condenser and returns to the compressor. In the preferred embodiment of the present invention, the compressor has at least two suction inlets, wherein the first refrigerant line is connected to the first inlet and the second refrigerant line is connected to the second inlet, and both inlets have each a suction valve.