411 results about "Turbine wheel" patented technology

A turbocharger assembly having a turbine assembly and a compressor assembly that are coupled by a rotating shaft. The turbine assembly includes an exhaust incoming-flow duct configured to deliver exhaust gases to a turbine wheel in an annular flow-path. The turbine wheel redirects and discharges the exhaust gases in a direction that is substantially opposite to the incoming exhaust flow direction. The exhaust outgoing flow passes radially inside of the annular flow-path of the exhaust incoming-flow duct. The compressor assembly includes an air incoming-flow duct configured to deliver air to an impeller wheel. The impeller wheel compresses, redirects, and discharges the air in an annular flow-path in a direction that is substantially opposite to the incoming airflow direction. The air incoming flow passes radially inside of the annular flow-path of the air outgoing-flow duct.

An air conditioning system is provided. The air conditioning system includes an air compressor, a battery, a generator, a blower, and a turboexpander. The air compressor generates pressurized air from ambient air. The battery is for powering the air compressor motor. The generator is electrically connected to the battery. The turboexpander includes a drive shaft, a turbine wheel coupled to the drive shaft, and an expander coupled to the drive shaft. The pressurized air provides a source of kinetic energy to directly cause the turbine wheel to rotate and generate boosted air from the pressurized air, and the boosted air from the turbine wheel is configured to be received in the expander wheel and directly cause the expander wheel and the drive shaft to rotate together with the turbine wheel, thereby generating expanded and cooled air in the expander wheel.

An exhaust turbocharger has a housing, in which a shaft is mounted by bearings, which carries a turbine wheel, on the one hand, and a compressor wheel, on the other hand. An electric machine has a rotor and a stator. The rotor is secured on the shaft for conjoint rotation therewith and the stator surrounds the rotor radially on the outside. A sleeve, which supports the rotor radially and axially, is arranged between the stator and the rotor. The sleeve has at least one fluid duct, by way of which a cooling fluid can be guided toward the bearings of the shaft.

A turbocharger includes a turbine housing accommodating a turbine wheel, a bearing housing rotatably supporting a rotating shaft to which the turbine wheel is fixed, a variable geometry mechanism accommodated in the turbine housing, surrounding the turbine wheel, and configured to guide a fluid to the turbine wheel, and a spring member held by the variable geometry mechanism and the bearing housing in an axial direction along the rotating shaft. The variable geometry mechanism has an inner circumferential portion surrounding a through hole in which the turbine wheel or the rotating shaft is disposed, and an outer circumferential portion located between the spring member and the turbine housing. The outer circumferential portion is distanced further away from a rotational axis of the rotating shaft than the inner circumferential portion. The outer circumferential portion includes a first end face contacting the spring member, and a second end face contacting the turbine housing.

A turbine wheel may include an inner hub having a central axis, an outer ring concentric with the inner hub, and an intermediate ring concentrically disposed between the inner hub and the outer ring, and a plurality of turbine blades extending between the intermediate ring and the outer ring. The turbine blades may be oriented to be driven by a fluid stream flowing through the turbine wheel to rotate the turbine wheel in a first direction about the central axis. In addition, the turbine wheel may further include a plurality of compressor blades extending between the inner hub and the intermediate ring. Also, the compressor blades may be oriented to propel a fluid in a downstream direction when the turbine wheel is rotated in the first direction.

An aspect of an exhaust turbine according to the present disclosure is provided with: a rotating shaft; a turbine wheel attached to one end side of the rotating shaft; a turbine housing having a scroll portion formed on an outer peripheral side of the turbine wheel; a bearing housing that accommodates a bearing for supporting the rotating shaft; a fastening member that fastens a first flange portion of the turbine housing and a second flange portion of the bearing housing together; and a heat-shielding plate having an outer peripheral edge portion held between the first flange portion and the second flange portion. In a first cross section that passes through the center of the rotating shaft and a tongue portion of the turbine housing along an axial direction of the rotating shaft, when the innermost position, in a radial direction of the rotating shaft, of a contact surface between the first flange portion and the outer peripheral edge portion of the heat-shielding plate is defined as a first seal inner end, the innermost position, in the radial direction, of a contact surface between the second flange portion and the outer peripheral edge portion of the heat-shielding plate is defined as a second seal inner end, and one of the first seal inner end and the second seal inner end that is positioned outside in the radial direction is defined as a seal inner end, the seal inner end is disposed outside the tongue portion in the radial direction.

A centrifugal separator for cleaning gas containing contaminants includes a stationary casing, enclosing a separation space through which a gas flow is permitted, a gas inlet extending through the stationary casing and permitting supply of the gas to be cleaned, a rotating member including a plurality of separation members arranged in the separation space and being arranged to rotate around an axis of rotation. The separator includes a gas outlet arranged in the stationary casing and configured to permit discharge of cleaned gas and including an outlet opening through a wall of the stationary casing, a drainage outlet arranged in the stationary casing and configured to permit discharge of liquid contaminants separated from the gas to be cleaned. The separator includes a turbine casing in which a turbine wheel that is drivingly connected to the rotating member is arranged; and a nozzle arranged for directing a jet of pressurized liquid towards the turbine wheel, thereby rotating said turbine wheel. The turbine casing includes a turbine outlet for drainage of the liquid used for rotating said turbine wheel. The turbine casing has a geometry such that the liquid used for rotating said turbine wheel is leaving said turbine outlet with a remaining kinetic energy that is higher than the energy obtained from gravity alone.

The invention relates to a rapid measurement method and device for cavitation damage of a water turbine runner and computer equipment. The method comprises the following steps: acquiring point cloud data collected by a 3D laser scanner for the surface of the turbine runner; determining a cavitation erosion area according to geometric features of the point cloud data; according to the point cloud data corresponding to the cavitation erosion area, the cavitation erosion damage area, the cavitation erosion damage depth and the cavitation erosion damage volume are determined; and according to the cavitation erosion area, the cavitation erosion damage area, the cavitation erosion damage depth and the cavitation erosion damage volume, determining a cavitation erosion damage measurement result of the water turbine runner. According to the method, based on the characteristics of high precision and interference resistance of the 3D laser scanner, the area with cavitation erosion is determined by using the acquired point cloud data, the area, depth and volume of the cavitation erosion area are calculated, an accurate cavitation erosion damage measurement result of the water turbine runner is generated, the limitation of a detection environment and an operation condition on cavitation erosion damage detection is avoided, and the accuracy of the detection result is improved. And efficient cavitation damage detection is realized, so that the safety of the hydroelectric equipment is improved.

An apparatus includes an electric generator that includes a fluid inlet configured to receive hydrogen at a first pressure, a turbine wheel configured to expand the hydrogen and rotate in response to expansion of the hydrogen flowing into an inlet of the turbine wheel and out of the outlet of the turbine wheel, a rotor coupled to the turbine wheel and configured to rotate with the turbine wheel, a stationary stator, the electric generator to generate an alternating current upon rotation of the rotor within the stator, and a fluid outlet configured to output hydrogen at a second pressure less than the first pressure. The apparatus includes a power electronics system electrically connected to an electrical output of the electric generator and to receive alternating current from the electric generator. The power electronics can condition the generated electrical current to supply power to various types of loads.

A system includes an inlet pipe, a pressure control valve, a flow-through electric generator, and an outlet pipe. The inlet pipe is connected to a carbon dioxide pipeline that flows carbon dioxide. The pressure control valve is installed on the inlet pipe and is configured to reduce a pressure of the carbon dioxide to a specified pressure. The flow-through electric generator includes a turbine wheel, a rotor, and a stator. The turbine wheel is configured to rotate in response to expansion of the carbon dioxide flowing into an inlet of the turbine wheel and out of an outlet of the turbine wheel. The flow-through electric generator is configured to generate electrical power upon rotation of the rotor within the stator. The outlet pipe is configured to receive the carbon dioxide that has expanded through the flow-through electric generator and flow the carbon dioxide to a carbon dioxide pipeline network.

To provide an electric turbomachine for a freezer that comprises a heat insulating mechanism for suppressing heat input from a motor to a refrigerant flowing in a refrigerant flow path of a turbine, and has a high degree of freedom in designing a structure for fixing a stationary vane.SOLUTION: An electric turbomachine for a freezer comprises a motor and a turbine connected to the motor via a rotational shaft. The turbine includes a stationary vane provided upstream of a turbine wheel in a refrigerant flow path. A casing includes a partition part configured to partition the motor and the refrigerant flow path of the turbine. The partition part is provided with a heat insulating mechanism, and the stationary vane is fixed to a shroud-side flow path wall part.SELECTED DRAWING: Figure 2

Disclosed is a turbine arrangement for a supercharging device. The turbine arrangement comprises a turbine housing, a turbine wheel and a guide device. The turbine housing defines a turbine spiral and a turbine outlet. The turbine wheel is arranged in the turbine housing between the turbine spiral and the turbine outlet. The guide device comprises a carrier ring and multiple guide blades. The guide blades are arranged on the carrier ring fixedly in a predetermined orientation. The guide device is arranged in an inflow channel between the turbine spiral and the turbine wheel such that, during operation, fluids are conducted from the turbine spiral through the inflow channel over the guide blades onto the turbine wheel.

A hydrocarbon stream is reformed in the presence of oxygen and steam to produce a syngas stream. A hydrogen stream is separated from the syngas stream. The hydrogen stream is combusted to produce a steam stream. The steam stream is flowed to a turbine wheel of an electric generator, thereby causing the steam stream to expand while flowing across the turbine wheel and the turbine wheel to rotate. The electric generator generates electrical power in response to rotation of the turbine wheel. In this way, hydrogen produced by reforming can be utilized as a clean fuel source for cogeneration to produce useful heat and electricity while simultaneously decreasing the carbon footprint of the process.

An internal combustion engine for a motor car has an exhaust tract which can be flowed through by exhaust gas of the internal combustion engine, a turbine wheel arranged in the exhaust tract and driven by the exhaust gas, and an exhaust gas recirculation device which has an exhaust gas recirculation conduit via which at least a part of the exhaust gas can be branched off from the exhaust tract at a branching point arranged upstream of the turbine wheel and can be recirculated to a suction tract which can be flowed through by air of the internal combustion engine and can be introduced into the suction tract at an introduction point. A compressor wheel which can be driven via electricity to compress the air flowing through the suction tract is arranged in the suction tract upstream or downstream of the introduction point.

The subject matter of this specification can be embodied in, among other things, a subsea energy recovery system for generating electric power that includes an inlet flow line configured to couple to a subsea tree of a subsea gas well to receive gas produced from the subsea gas well, and a subsea electric power generation system, the subsea electric power generation system configured to reside subsea on a subsea production site of the subsea gas well and including a turbine wheel configured to rotate in response to expansion of the gas, a rotor configured to rotate with the turbine wheel, a stationary electric stator, the rotor and electric stator defining an electric generator configured to generate current, and a hermetically sealed housing enclosing the turbine wheel, the rotor, and the electric stator and hermetically sealed inline in the first flow line.

A turboexpander with a turbine wheel coupled to drive a generator in response to a flow of incoming gas. A housing assembly of the turboexpander defines a sealed space, sealed from the incoming gas. The sealed space is in fluid communication with a surface of the turbine wheel such that pressure in the sealed space acts on the turbine wheel. A bypass passage communicates pressure between the sealed space and a space in communication with an outlet of the turbine wheel. The bypass passage includes an changeable flow area to control the communication of pressure between the sealed space and the outlet of the turbine wheel.

A working fluid circulates through a heat pump cycle in a first direction. Heat is transferred from a first environment to a working fluid. The working fluid is pressurized by a compressor. Heat is transferred from the working fluid to a second environment different from the first environment. A first portion of the working fluid is flowed through a throttle valve. A second portion of the working fluid is flowed to a turbine wheel of a flow-through electric generator. Electrical power is generated by the generator in response to the second portion of the working fluid flowing across the turbine wheel. The working fluid can circulate through the heat pump cycle in a second direction opposite the first direction. Regardless of whether the working fluid flows through the heat pump cycle in the first or second directions, impellers of the generator rotate in the same direction.

Flow from a gas well is conditioned prior to a production pipeline. A flow line is coupled to a gas well to receive the gas and coupled to a production pipeline to direct the received gas away from the production site, the flow line residing at a production site and comprising an electric power generation system. The electric power generation system has a turbine generator. The inlet nozzle and turbine wheel of the turbine generator is configured to reduce the pressure and temperature of the received gas to conditions associated with the production pipeline.

The invention relates to the technical field of impulse turbines, in particular to an impulse turbine runner wet mode numerical simulation method, which comprises the following steps of: establishing an impulse turbine fluid numerical simulation model comprising a water distribution ring pipe, a direct flow spray pipe and a runner position water body, and defining pretreatment setting comprising a turbulence model, a wall surface function and a boundary condition; solving to obtain the distribution state of the fluid near the runner bucket of the impulse turbine along with the time change; based on a calculation result, selecting a plurality of typical distribution states as wet modal calculation working condition points of the impact type rotating wheel; fluid units corresponding to modal calculation working condition points are extracted from the fluid analysis model and transferred to a wet modal analysis model; combining the obtained fluid unit and the runner structure unit to establish a complete impact type runner wet modal analysis model; defining boundary conditions including structural model freedom degree constraint, fluid model surface constraint and structure and fluid fluid-solid coupling effect; and solving and extracting the wet modal analysis result of the impact runner to obtain the key vibration mode and the corresponding inherent frequency of the runner. According to the method, the key vibration mode and the corresponding inherent frequency of the impulse turbine runner can be obtained by utilizing a numerical simulation method according to the actual soaking state of the runner, and the problems that an impulse turbine runner wet mode numerical simulation method is imperfect and low in precision are solved.

A rotating detonation combustor system includes a rotating detonation combustor having an outer wall, and inner wall, and a combustion chamber configured to receive a fuel and an oxidizing agent and expel exhaust gas. The rotating detonation combustor system also includes a turbine wheel in fluid communication with the combustion chamber and configured to rotate upon receiving the exhaust gas, a shaft rotatable with the turbine wheel, and a compressor wheel rotatable with the shaft, in fluid communication with the combustion chamber, and configured to deliver compressed oxidizing agent to the combustion chamber. The rotating detonation combustor system further includes an electric machine rotatable with the shaft. The electric machine is configured to convert at least one of rotational motion of the shaft to electrical energy, and electrical energy to rotational motion of the shaft.

There is provided a turbine for a turbocharger, comprising: a turbine inlet passage configured to receive exhaust gas from an internal combustion engine, the exhaust gas received by the turbine inlet passage defining a turbine bulk flow; a turbine wheel chamber configured to receive the turbine bulk flow from the turbine inlet passage, the 5 turbine wheel chamber configured to contain a turbine wheel supported for rotation; a turbine outlet passage configured to receive the turbine bulk flow from the turbine wheel chamber, the turbine outlet passage being at least partially defined by a turbine outlet passage surface and defining a centreline; an auxiliary passage configured to receive a portion of the turbine bulk flow, the portion of the turbine bulk flow received by 10 the auxiliary passage defining an auxiliary flow; and a dosing module configured to deliver a spray of aftertreatment fluid into the turbine outlet passage; wherein the auxiliary passage is configured to direct the auxiliary flow along the turbine outlet passage surface in an auxiliary flow layer.

An example turbocharger includes a turbine impeller, a rotation shaft fixed to the turbine impeller, a motor having a rotor located on the rotation shaft, and a stator located around the rotor. The stator includes a stator core, an insulator located around the stator core. The insulator includes an element pocket, a coil wound around the insulator. The coil includes a first coil end and a second coil end, and a temperature sensing device configured to detect a temperature of the coil. The temperature sensing device is located in the element pocket and hold by the element pocket.

The invention provides a rotor structure of an electric auxiliary supercharger supported by a ball bearing. The rotor structure comprises a turbine impeller, a rotating shaft, an integral double-row angular contact ball bearing, a bearing inner ring spacer sleeve, a motor magnetic rotor, a shaft sealing sleeve, a compressor impeller and a shaft end nut. The electric auxiliary supercharger has the beneficial effects that the rotor adopts an integral double-row angular contact ball bearing supporting structure and has the characteristics of high bearing performance, high responsiveness and the like, the problems that a cantilever of the electric auxiliary supercharger is too long and the mass of the rotor is heavy are solved through the structural arrangement of the rotor, and the use requirements in high rotating speed and strong impact vibration environments are met; the bearing body is provided with the cooling water cavity, so that the working stability of the bearing can be improved; the motor shell is provided with a cooling water cavity so as to effectively control the working environment temperature of the motor; the sealing ring is arranged between the motor magnetic rotor and the integral double-row angular contact ball bearing, so that lubricating oil entering the motor is reduced, and high-speed oil stirring loss of the motor rotor is avoided; in addition, high-temperature gas is isolated, and stable work of the motor and the bearing is facilitated; the top of the bearing body is provided with an oil inlet hole to ensure that lubricating oil cools the bearing, and the side bottom is provided with an oil return hole to enable the lubricating oil to flow out.

The invention provides an electric auxiliary supercharger rotor structure with a motor arranged outside the supporting span of a floating ring bearing. The electric auxiliary supercharger rotor structure comprises a turbine impeller, the floating ring bearing, a rotating shaft, a thrust spacer sleeve, a shaft sealing sleeve, a motor magnetic rotor, a compressor impeller and a shaft end nut. The compressor impeller has the beneficial effects that the compressor impeller adopts the impeller with the small length-diameter ratio, and the ratio of the axial length of the impeller to the outer diameter of the impeller is smaller than 0.25 while the performance requirement of a supercharger is met, so that the axial length of a rotor structure is shortened, vibration generated when a rotor runs is restrained, and the reliability of the rotor structure is improved.

There is disclosed a method of operating an exhaust system for receiving exhaust gas from an internal combustion engine. The exhaust system comprises: a turbine, a dosing module, at least one of a variable geometry mechanism and a bypass control valve, and a controller. The turbine is configured to receive exhaust gas from the internal combustion engine. The turbine comprises a turbine wheel configured to extract energy from the exhaust gas. The dosing module is configured to deliver an aftertreatment fluid to the exhaust gas at a position downstream of the turbine wheel. The variable geometry mechanism is configured to control the flow of exhaust gas delivered to the turbine wheel. The bypass control valve is configured to bypass a portion of the exhaust gas from a position upstream of the turbine wheel to a position downstream of the turbine wheel. The controller is configured to execute the method, the method comprising: determining a current property of the exhaust gas at a position downstream of the turbine wheel; determining a difference between the current property of the exhaust gas at the position downstream of the turbine wheel and a reference property of the exhaust gas at the position downstream of the turbine wheel; and in response to the difference, adjusting the at least one of the variable geometry mechanism and the bypass control valve.

An aspect of an exhaust gas turbine according to the present disclosure comprises a rotating shaft, a turbine wheel mounted on an end face of the rotating shaft, a turbine housing in which a worm section is formed on an outer circumferential face of the turbine wheel, a bearing housing that accommodates a bearing supporting the rotating shaft, a fastening element for joining a first flange section of the turbine housing and a second flange section of the bearing housing, and a heat shielding plate having an outer circumferential edge section clamped between the first flange section and the second flange section, wherein, in a first cross-section passing through a center of the rotating shaft and a tongue section of the turbine housing along an axial direction of the rotating shaft, in one case,in which an innermost position in a radial direction of the rotating shaft in a contact surface between the first flange section and the outer circumferential edge section of the heat shield is set such that it is a first inner sealing end, an innermost position in the radial direction in a contact surface between the second flange section and the outer circumferential edge section of the heat shield is set such that it is a second inner sealing end, and a inner sealing end located on an outer side in the radial direction is set such that it is a sealing end, the inner sealing end is arranged on an outer side with respect to the tongue section in the radial direction.

The utility model relates to fan transmission system technical field, and disclose a kind of assembly impeller, including impeller and main shaft, the detachable connection between the impeller and main shaft, at least two symmetrical distribution's protruding tooth is processed in the main shaft end face;The recess matched with the protruding tooth is opened in the impeller body end face, and torque is transferred by the side surface contact of the protruding tooth and recess;The utility model is matched by protruding tooth and recess, and contact area is big, can effectively disperse torque, reduce local stress concentration;Symmetrical distribution's protruding tooth makes stress more balanced, avoids the local failure caused by structural deviation.

A supercharger includes a turbine wheel, a turbine housing, and a connection pipe. The connection pipe includes a partition wall that separates an inside of the connection pipe into a first passage and a second passage. When a cross section orthogonal to a rotation axis of the turbine wheel is observed, a line segment that extends from a top end of the partition wall toward an upstream in a flow direction of exhaust gas and that defines a boundary of the first passage and the partition wall is a first downstream side line segment. A line segment that extends from the top end of the partition wall toward the upstream in the flow direction of the exhaust gas and that defines a boundary of the second passage and the partition wall is a second downstream side line segment. The first downstream side line segment is parallel to the second downstream side line segment.

The present invention relates to a method for manufacturing a double-vane nozzle ring assembly for a turbocharger with a twin-scroll turbine housing for directing exhaust gas from each scroll to a turbine wheel in a staggered manner. A double-vane nozzle ring for a turbine nozzle of a turbocharger nozzle ring is manufactured by assembling a nozzle ring from three separately formed parts. The central portion includes a first ring of circumferentially spaced first blades and a second ring of circumferentially spaced second blades, the first ring and the second ring being axially spaced and integrally connected to each other. The first blade is circumferentially offset from the second blade, and the outlet of the first blade passage is radially aligned with the outlet of the second blade passage and circumferentially staggered. The first sidewall and the second sidewall are arranged as separate parts. Finally, the first sidewall is connected to the distal face or outer surface of the first ring, and the second sidewall is connected to the distal face of the second ring to complete the assembly.

A turbocharger for an internal combustion engine or fuel cell includes a compressor having a liquid-cooled backplate through which a liquid coolant is circulated. The backplate reduces compressor outlet temperature, thereby reducing the cooling load on the intercooler for the engine, and enabling a reduction in charge air temperature entering the engine air inlet manifold. The compressor can include a serial two-stage compressor, in which case the backplate serves as a divider between the two impellers. In another variation, a turboexpander is combined on the same shaft with a single-stage compressor having the liquid-cooled backplate. Pressurized air from the compressor drives the turbine wheel of the turboexpander, expanding and reducing the temperature of the air before being fed to the engine.