185 results about "Turbine wheel" patented technology

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 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.

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.

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 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.

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.

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.

A micro-turbine system (10) includes a combustor (12) defining an inlet (14) for receiving oxidizing agent, a combustion chamber (16) for combusting the fuel and the oxidizing agent, and an outlet (18) for expelling exhaust gas. The micro-turbine system (10) also includes a turbine machine (20) including a bearing housing (22) defining a bearing housing interior (24) and a lubricant passageway (26), a turbine housing (28) coupled to the bearing housing (22) and defining a turbine housing interior (30), a turbine wheel (32) disposed in the turbine housing interior (24), rotatable about an axis, and in fluid communication with the outlet (18) of the combustor (16). The turbine machine (20) also includes a shaft (34) rotatable with the turbine wheel (32) about the axis, a bearing arrangement (36) disposed about the shaft (34), and an electric machine (38) disposed about the shaft (34) and configured to convert rotational motion of the shaft (34) to electrical energy. The micro-turbine system (10) further includes a restriction valve (40) configured to increase a pressure in the bearing housing interior (24).

The invention relates to the technical field of energy recovery and power engineering, and discloses a cantilever type saturated steam turbine and a using method thereof.The cantilever type saturated steam turbine comprises a cantilever type turbine unit, the cantilever type turbine unit comprises an installation outer shell and a turbine wheel disc assembly installed in the installation outer shell, and the turbine wheel disc assembly is connected with a rotor main shaft; the turbine wheel disc assembly comprises a turbine impeller and a turbine blade piece installed on the turbine impeller. The water catching assembly comprises a water collecting ring and a water draining cavity formed in one side of the water collecting ring, and a water collecting groove is formed in the side edge of the water collecting ring; a mounting bearing is mounted on one side of the cantilever type turbine unit, a gear box is connected to one side of the cantilever type turbine unit, and a condenser is connected to the cantilever type turbine unit; the problems that in the prior art, the structure is complex, cost is high, blade erosion is serious, efficiency improvement is limited, meanwhile, the equipment size is large, starting is complex, the response speed is low, and the waste heat recovery temperature lower limit is low are solved.

This turbine comprises: a turbine wheel; a turbine housing that rotatably accommodates the turbine wheel and defines an annular nozzle flow path on an outer peripheral side of the turbine wheel; a plurality of long nozzle vanes that are provided offset in a circumferential direction so as not to overlap in a radial direction in the nozzle flow path; and a short nozzle vane that is provided between two long nozzle vanes which are adjacent to each other in the circumferential direction among the plurality of long nozzle vanes, and in which the length of a straight line connecting a front edge and a rear edge of the short nozzle vane is shorter than that of the long nozzle vane. The short nozzle vane is provided on a front-edge circumscribed circle that passes through the front edge of each of the two long nozzle vanes which are adjacent to each other in the circumferential direction.

A turbine (T) is provided with: a turbine wheel; a plurality of nozzle blades that are disposed on the outside in the radial direction of the turbine wheel, are spaced apart in the circumferential direction of the turbine wheel, and are provided so as to be rotatable about a rotation axis along the axial direction of the turbine wheel; an annular member (drive ring (107)) that extends in the circumferential direction and is provided so as to be rotatable in conjunction with the plurality of nozzle vanes; and an engagement part (107c) which has a thickness greater than the thickness of the peripheral portion of the circular ring member, is provided on the circular ring member, and includes a pair of sliding surfaces (107d) facing each other in the circumferential direction, the engagement part (107c) being slidably engaged with a drive member (link plate (111)) rotationally driven by an actuator.

A pipeline-integrated power generation system for remote oil and gas sites is disclosed. The system utilizes a flow-through generator with contactless magnetic coupling to eliminate shaft seals and dynamic penetrations. The system comprises a pipeline with a flow restriction device creating pressure differential, branch and return lines routing pressurized fluid through the flow through generator, and a sealed housing defining pressurized and atmospheric portions separated by a non-magnetic generator wall. A turbine wheel, shaft, and permanent magnets operate within the sealed portion, while external windings in the unsealed portion generate electricity through magnetic coupling across the generator wall. The contactless design eliminates leak paths, reduces maintenance requirements, and provides zero-emission power generation from existing pipeline flow. The sealed, self-contained design minimizes maintenance and enhances durability, suitable for remote locations.

A turbomachine includes a rotating set with a turbine wheel. The turbomachine also includes a casing that houses the rotating set, where the casing defines a turbine outlet passage for exhausting air from the turbine wheel. The turbine outlet passage points in a downstream direction along an axis of the turbine outlet passage. The turbomachine includes an air bearing system with at least one bearing component that supports the rotating set for rotation relative to the casing. The air bearing system includes a bearing cooling path that is fluidly connected to the at least one bearing component and has a bearing air line outlet. The bearing air line outlet is fluidly connected to the turbine outlet passage and points in the downstream direction along the axis.

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.

The controller executes acquisition process for acquiring a parameter correlated with a back pressure which is a pressure in the exhaust pipe upstream of a turbine wheel of the turbocharger, determination process for determining whether the back pressure is higher than or equal to a predetermined pressure based on the acquired parameter, and overlap limitation process for limiting a valve overlap amount between an intake valve and an exhaust valve of the internal combustion engine when it is determined that the back pressure is higher than or equal to the predetermined pressure. The overlap limitation process is a process of changing the valve closing time of the exhaust valve such that the valve overlap amount becomes smaller than that before the overlap limitation process is executed.

It helps to suppress the decline in reliability. [Solution] The supercharger 1 comprises a turbine housing 21 that houses a turbine impeller 22, a bearing housing 41 that rotatably supports a rotating shaft 11 to which the turbine impeller 22 is fixed, a nozzle plate 52 facing the turbine housing 21, and a fixed nozzle unit 5 having a plurality of nozzle vanes 51 arranged around the turbine impeller 22 and fixed to the nozzle plate 52, and a rotation restricting part 6 including a pin 61 and a pin insertion part 62 into which the pin 61 is inserted for restricting the position of the fixed nozzle unit 5 along the circumferential direction. The turbine housing 21 is provided with a pin 61. The nozzle plate 52 is provided with a pin insertion part 62.

Presented is a turbocharger (1) for an internal combustion engine (2). The turbocharger comprises a turbine (3) comprising a turbine wheel (4) and a compressor (5) comprising a compressor wheel (6). The turbine wheel (4) and the compressor wheel (6) are interconnected by means of a drive shaft (15). The turbine (3) comprising a turbine housing (7) containing the turbine wheel (4) and having an exhaust gas inlet (8) and an exhaust gas outlet (9). The compressor (5) comprising a compressor housing (10) containing the compressor wheel (6) and having an air inlet (11) and an air outlet (12). The turbocharger (1) is provided with at least one nozzle (13) that is connectable in fluid communication with a cleaning agent source (14) and that is in fluid communication with the turbocharger (1) to feed cleaning agent into the turbocharger (1). Presented is also a method for operating a turbocharger (1).

This variable nozzle device is stored together with a turbine wheel in a housing, the variable nozzle device comprising: a nozzle holder; at least one nozzle holder configured such that one side of it is supported by the nozzle holder and the other side of it rests against another element; and a biasing element configured to bias the nozzle holder towards the other side of the element.The nozzle holder and the at least one nozzle holder are supported in the axial direction between the other element and the preloading element by a preload force of the preloading element, and the at least one nozzle holder includes a contact surface that rests against the other element and a curved surface having an inner edge connected to an outer edge of the contact surface and a contour shape that is curved in such a way that it projects in a direction away from the central axis of the nozzle holder.

The turbocharger comprises a middle body, a rotating shaft, a shaft sealing sleeve and an annular oil blocking structure, the middle body is provided with a rotating shaft hole, an oil inlet hole and an oil discharging cavity, the oil inlet hole and the oil discharging cavity are both communicated with the rotating shaft hole, the rotating shaft is arranged in the rotating shaft hole in a penetrating mode, and the shaft sealing sleeve is arranged in the middle body. One end of the rotating shaft is connected with the compressor impeller, the other end of the rotating shaft is connected with the turbine impeller, the rotating shaft is sleeved with a floating bearing, the floating bearing is provided with a communicating hole communicating with the oil inlet hole, the rotating shaft is sleeved with the shaft sealing sleeve, the shaft sealing sleeve is located between the compressor impeller and the floating bearing, and a gap is formed between the shaft sealing sleeve and the floating bearing; at least part of the outer circumferential face of the shaft sealing sleeve is connected with the middle body in a sealed mode, and the annular oil blocking structure is arranged in the middle body and surrounds the outer side of the gap. By adopting the combination of the shaft sealing sleeve and the annular oil blocking structure, the technical problem that engine oil is out of control due to splashing at a high rotating speed is solved.

A variable-capacity turbocharger has: a turbine housing that accommodates a turbine impeller; a variable nozzle assembly with a nozzle vane arranged in a nozzle flow channel provided around the turbine impeller in the turbine housing, and a drive mechanism designed to drive the nozzle vane; a disc spring designed to bias the variable nozzle assembly in an axial direction so that it is pressed against a section of the turbine housing; and an engagement section in which the variable nozzle assembly and the turbine housing engage in such a way as to limit displacement of the variable nozzle assembly in a circumferential direction, the engagement section being located in a region radially outside a range of motion of the nozzle vane.

A variable-capacity turbocharger has: a turbine housing that accommodates a turbine impeller; a variable nozzle assembly with a nozzle vane arranged in a nozzle flow channel provided around the turbine impeller in the turbine housing, and a drive mechanism designed to drive the nozzle vane; a disc spring designed to bias the variable nozzle assembly in an axial direction so that it is pressed against a section of the turbine housing; a pin extending from the bearing housing; and a U-groove provided on the variable nozzle assembly that allows the insertion of a distal end of the pin.The U-groove has a pair of inner wall surfaces designed as parallel flat planes intersecting in the circumferential direction, and which hold the distal end of the pin between them in the circumferential direction, with the distal end of the pin being press-fitted between the inner wall surfaces.

The invention discloses a method for measuring the height of a blade root groove after creep deformation by using measuring point transfer. According to the existing detection, a depth vernier caliper or a depth micrometer is adopted to directly measure the distance between the circle center of a tooth groove corresponding to the two sides of a blade root groove and the bottom of the blade root groove, no corresponding reference exists in the mode, and the measured distance is not accurate. The method comprises the following steps that a backup plate abuts against the end face, where a blade root groove is located, of a turbine wheel disc during measurement, and then when a first-stage tooth groove is measured, a square ring shell is moved in the height direction, so that a positioning block of the square ring shell is located at the position of the first-stage tooth groove; the two positioning blocks synchronously and reversely move until the positioning blocks are inserted into the tooth grooves, the scale insertion ruler slides to enable the bottom of the scale insertion ruler to make contact with the bottom of the blade root groove, the bottom of the scale insertion ruler is the zero scale, and the distance between the circle center of the tooth grooves and the bottom of the blade root groove can be read by observing the scale where the upper surface of the datum plate is located. The method is used for measuring the height of the blade root groove of the turbine wheel disc of the gas turbine after creeping.

Turbine wheel (14) of a longitudinal axis turbomachine (10) comprising: a disc (18) having at its outer periphery longitudinal ribs delimiting longitudinal cells; a plurality of blades carried by the disc (18); a plurality of protection and sealing elements (500, 500', 500''), each protection and sealing element (500) comprising: a first part (510) mounted in a longitudinal cell (20); at least one second portion (520) connected to a first axial end (514) of the first portion (510) and extending circumferentially such that a first lateral portion (524) is applied to an end face of a first longitudinal rib (23a) and a second opposite lateral portion (526) is applied to an end face of a second longitudinal rib (23b). Abstract figure: Figure 5.

Turbocharger (119) for use with an internal combustion engine (100), comprising the following: a housing (122) for a turbine (120) that surrounds a rotatable wheel of the turbine (120) which is connected to a shaft (126); a central housing comprising a bearing arrangement that rotatably supports the shaft (126), the shaft (126) extending through the central housing; a compressor housing (217) surrounding one end of the shaft (126); and a compressor wheel (213) which is connected to the end of the shaft (126) and rotatably arranged within the compressor housing (217), the compressor wheel (213) comprising: a central hub (302) with a center line, a foot section and an end section, wherein the foot section is adjacent to a connection interface between the central hub (302) and the shaft (126); a plurality of blades (308) formed around the central hub (302), wherein the plurality of blades (308) comprises a group of complete blades (310) extending from the foot section of the central hub (302) to a maximum distance from the foot section along the center line, the maximum distance being adjacent to the end section of the central hub (302); wherein the plurality of blades (308) further comprises a group of half-blades (312), the half-blades (312) extending from the foot section of the hub to an area along the centerline which is between 55% and 70% of the maximum distance along the centerline; wherein the plurality of blades (308) further comprises a group of partial blades (314), the partial blades (314) extending from the foot section of the hub to a region along the centerline which is between 40% and 55% of the maximum distance along the centerline; and wherein the plurality of blades (308) is grouped into repeating sets of blades (308) arranged around the compressor wheel (213), each repeating set comprising at least one complete blade (310), at least one half blade (312) and at least one partial blade (314); wherein each complete shovel has a first leading edge which is located near the end section; wherein each complete blade forms a first tip (320) at a radially outer end of the respective first leading edge (318), wherein the first tips (320) of the complete blades (310) are axially aligned relative to the center line and are arranged at a first distance, X1, with respect to a foot diameter (322) of the central hub (302), and wherein the first distance is the maximum distance; wherein each partial blade comprises a third leading edge (328) forming a third tip (330), the third tips (330) being axially aligned relative to the centerline and arranged at a third distance, X3, with respect to the foot diameter (322) of the central hub (302); and wherein each half-shovel comprises a second leading edge (324) forming a second tip (326), the second tips (326) being axially aligned relative to the centerline and arranged at a second distance, X2, with respect to the foot diameter (322) of the central hub (302); and where: X2 ≈ 0.62*X1, X3 ≈ 0.46*X1; and X3 ≈ 0.73*X2.

A vented dryer includes a cabinet, a drum, a heater, and an energy harvesting system. The cabinet has an exhaust outlet and a cabinet inlet. The drum is rotatably supported within the cabinet and includes a laundry compartment positioned inside the drum. The heater heats a flow of air that travels through the drum and exits out the exhaust outlet. The energy harvesting system includes a turbine wheel that is rotatably coupled to a turbine wheel motor to recover mechanical energy from the flow of air exiting through the exhaust outlet of the cabinet and convert the recovered mechanical energy into electricity.

Sensor (1) for determining a process variable, in particular a fill level, limit level, density or viscosity, of a medium (2), comprising a measuring unit (6) attached to a sensor housing (5) that is at least partially surrounded by the medium (2) for determining the process variable of the medium (2), characterized in that at least one turbine wheel (12, 12', 12'', 12''') driving an electric generator (11) is rotatably mounted on the sensor housing (5) about an axis of rotation (13, 13') such that the at least one turbine wheel (12, 12', 12'', 12''') can be set into rotation by the medium (2) surrounding the sensor housing (5), and the turbine wheel is attached at a distal end of the sensor housing in the immediate vicinity of the measuring unit arranged at the distal end, wherein the distal end of the sensor housing is to be understood as a housing end that is surrounded by the medium and is connected to a proximal, fixed opposite the end of the sensor housing.

An axial turbine (100, 200) is described herein. The axial turbine has a turbine casing (160), a turbine wheel (180) arranged in the turbine casing (160) and mounted on a shaft, and a nozzle ring (110) arranged in the turbine casing (160) 5 and at least partially upstream of the turbine wheel (180). The nozzle ring (110) comprises an inner ring (114), a plurality of nozzle blades (113) arranged radially outward of the inner ring (114), and an outer ring (112) arranged radially outward of the nozzle blades (113). The nozzle ring (110) is releasably attached within the turbine casing (160). The nozzle ring (110) includes a circumferentially extending 10 stress-relief groove (116, 117) on the inner ring (114) and / or the outer ring (112).

A turbocharger turbine wheel can include a hub including an axis of rotation, a back disk, and a nose, wherein the axis of rotation defines an axial coordinate (z) in a cylindrical coordinate system including a radial coordinate (r) and a azimuthal coordinate ( ) along an intended direction of rotation about the axis of rotation; and blades extending outwardly from the hub, wherein each of the blades includes a hub profile, a shroud edge, a leading edge, a trailing edge, a pressure side, and a suction side, wherein the hub profile includes a global maximum radius and a global minimum radius, and wherein, between the global maximum radius and the global minimum radius, in an axial direction from the back disk to the nose, the hub profile includes a local minimum radius at a first axial coordinate location and a local maximum radius at a second axial coordinate location.

This improves the responsiveness of the actual boost pressure when the opening of the wastegate valve is changed. [Solution] The internal combustion engine comprises a cylinder, an intake passage, an exhaust passage, a turbocharger, and an actuator. The turbocharger includes a turbine wheel, a compressor wheel, a bypass passage, and a wastegate valve. The wastegate valve opens and closes the flow path of the bypass passage. The control device of the internal combustion engine acquires the actual boost pressure as the measured value of the boost pressure, which is the pressure in the portion downstream of the compressor wheel in the intake passage (S13). When the control device of the internal combustion engine changes the opening of the wastegate valve, it increases the amount of change in power supplied to the actuator when the amount of change in the actual boost pressure over a predetermined period is a first value, compared to when the amount of change in the actual boost pressure over a predetermined period is a second value which is greater than the first value (S51, S52).