Source: https://patents.justia.com/patents-by-us-classification/415/205
Timestamp: 2019-12-13 06:07:44
Document Index: 144495859

Matched Legal Cases: ['art 1', 'art 9', 'art 3', 'art 40', 'art 40', 'art 40']

Inlet Scroll Patents and Patent Applications (Class 415/205) - Justia Patents Search
Justia Patents Rotary Kinetic Fluid Motors Or Pumps Patents Working Fluid Passage Or Distributing Means Associated With Runner (e.g., Casing, Etc.) Patents Casing Having Tangential Inlet Or Outlet (i.e., Centrifugal Type) Patents Scroll-type Casing Patents Inlet Scroll Patents (Class 415/205)
Inlet Scroll Patents (Class 415/205)
Patent number: 10465522
Abstract: High cycle fatigue (HCF) in a turbine wheel of a sector-divided dual volute turbocharger, particularly a turbocharger where the tongue-to-blade gap is as small as from 1-3% of the wheel diameter, is reduced using a turbine wheel with (blade stiffness/backwall stiffness×100) between 41 and 44.
Inventors: Matthew Carson Colley, Craig Andrew Colont, Dominic William DePaoli, Sean Hastings
Francis turbine with short blade and short band
Patent number: 10465647
Abstract: A Francis turbine runner including a shortened band length and a shortened blade length combined with a reversed runner blade leading edge having a junction of the leading edge with the band forerunning a junction of the leading edge with the crown in the rotational direction, and a bandless runner including a shortened periphery length and a shortened blade length combined with a reversed runner blade leading edge having a corner of the leading edge at the outer periphery of the runner that is in advance of where the leading edge joins the crown in the rotational direction. Additional feature includes an inverted trailing edge curvature design on the runner blade that further shortens the blade length.
Assignee: Andritz Hydro Ltd.
Inventor: Sven Von Fellenberg
Patent number: 10450887
Abstract: A turbocharger is provided with a valve body which is disposed in a suction flow path leading from an inflow port of a housing covering a turbine rotor blade to a scroll portion and composed of a single piece or multiple divided pieces to supply a fluid to the turbine rotor blade with the inner surface thereof formed using a first wall surface and a second wall surface facing the first wall surface as part thereof, extends from the upstream side to the downstream side of the flow of the fluid, is rotatably provided in the housing in a direction toward and away from the first wall surface and the second wall surface, forms an upstream-side narrowed flow path with the first wall surface therebetween at an end on the upstream side, and forms a downstream-side narrowed flow path with the second wall surface therebetween at an end on the downstream side.
Inventor: Hirotaka Higashimori
Method and system for tuning a turbine using a secondary injection valve
Patent number: 10267318
Abstract: A turbine and method of operating a turbine includes a housing having an inlet, a volute and an outlet. The inlet is coupled to the volute through a primary fluid path and a secondary fluid path. The turbine further includes an impeller rotatably coupled to the housing and a hydraulically actuated valve assembly disposed within the secondary fluid path selectively communicating fluid from the inlet to the volute. The turbine includes a hydraulic actuator coupled to the valve assembly moving the valve assembly from a first position communicating fluid from the inlet into the volute to a second position blocking flow from the inlet to the volute.
Turbocharger diffuser center body
Patent number: 10233779
Abstract: A turbocharger turbine having housing walls defining a diffuser. Within the diffuser, a center body within the diffuser is supported by de-swirl vanes extending from the diffuser wall. The center body forms a de-swirl passageway having an increasing mean diameter of flow from an upstream end of the center body to a leading edge of the de-swirl vanes. A trailing edge of the de-swirl vanes is near the downstream end of the center body. Annular-type guide vanes surround the center body within the de-swirl passageway. A wastegate system is configured to vent wastegate flow into the diffuser through injection ports on the de-swirl vanes, annular guide vanes and/or center body.
Inventors: Christopher W. Wilkins, Wagner M. Magalhaes, Bharathi Raja Sugumaran, Martin Babak
Aerating system for hydraulic turbine
Patent number: 10215151
Abstract: Aerating system for the runner of a hydraulic turbine, the runner comprising a plurality of blades, such that inter-blade canals are configured between each pair of blades for the admission of air in the water flow circulating through the hydraulic turbine, such that the aerating system comprises at least one hydrofoil located in the inter-blade canal of the runner contacting the pair of blades configuring the inter-blade canal where the hydrofoil is located, such that the hydrofoil has a non-axis symmetrical profile, and such that at least one of the blades in contact with the hydrofoil comprises an aerating canal delivering air to the hydrofoil.
Inventors: Sebastien Beaulieu, Michel Sabourin, Laurent Bornard, Guillaume Boutet-Blais
Turbocharger with a radial-axial turbine wheel
Patent number: 10190415
Abstract: A turbocharger has a shaft with a rotational axis, a radial/axial turbine wheel which is arranged in a turbine housing and which is connected to the shaft in a non-rotatable manner, and a bearing housing which adjoins the turbine housing and which contains a lateral wall facing the turbine housing. A sub-region of the lateral wall of the bearing housing forms a sub-region of the rear wall of the turbine housing. The sub-region of the bearing housing has two sub-sections, one of which runs diagonally to the rotational axis in an inflow direction of an exhaust gas flow conducted into the turbine housing and the second of which runs in a radial direction relative to the rotational axis of the shaft and parallel to the rear wall of the turbine wheel. The two sub-sections are connected to each other via an exhaust gas flow separation edge of the bearing housing.
Inventors: Holger Faeth, Marc Hiller, Ivo Sandor
Internal combustion engine having at least one cylinder head comprising at least two cylinders
Patent number: 10174709
Abstract: Systems are provided for an integrated exhaust manifold that may be used in a variety of engine systems. In one example, an integrated exhaust manifold may include a central axis running from an inlet end to an outlet end of the integrated exhaust manifold and two exhaust outlets arranged at the outlet end and coupled to a common collecting line, the two exhaust outlets symmetrically positioned across the central axis and having a same diameter, where each exhaust outlet of the two exhaust outlets has a passage axis arranged parallel to the central axis. A first exhaust outlet of the two exhaust outlets may be permanently blocked and a second exhaust outlet of the two exhaust outlets may be coupled to an exhaust system of an engine system.
Inventors: Wilbert Hemink, Bas van den Heuvel
Patent number: 10151236
Abstract: Methods and systems for adjusting a branch communication valve in a dual scroll turbocharger system are provided. In one example, a method may include adjusting a position of a valve arranged between a first adaptor and a second adaptor to enable mixing of exhaust received from an exhaust manifold, the exhaust delivered to a first scroll and a second scroll of a turbocharger to drive a turbine during certain engine operating conditions.
Patent number: 9874138
Abstract: A twin scroll turbocharger device for an internal combustion engine includes a turbine and a compressor, wherein the turbine comprises a first turbine scroll and a second turbine scroll, and wherein at least the first turbine scroll is provided with a turbine scroll inlet valve such that the exhaust gas flow through the first turbine scroll is controllable. The twin scroll turbocharger device is further characterized in that a bypass conduit is provided between a compressor and at least the first turbine scroll. The bypass conduit is provided with a bypass conduit valve such that a flow through the bypass conduit is controllable.
Inventor: Goran Almkvist
Patent number: 9874222
Abstract: The flow-through characteristics of twin exhaust gas scroll passages of a turbine are made equal to each other. A tongue which partitions the scroll portions into outer peripheral portions and inner peripheral portions includes a front-side tongue and a rear-side tongue that respectively close the two exhaust gas passages at the outer peripheral portion. The inner sides of the front-side tongue and the rear-side tongue, and the minimal outflow width portions of the front-side passage and the rear-side passage, respectively, are formed substantially parallel to each other at a downstream end of the outer peripheral portion.
Inventors: Toyotaka Yoshida, Takao Yokoyama, Motoki Ebisu
Air intake duct structure for centrifugal fluid machine
Patent number: 9790957
Abstract: An object is to provide an air intake duct structure for a centrifugal fluid machine, capable of swirling the fluid introduced into the impeller in the reverse direction to increase the pressure ratio when the flow rate is high and swirling the fluid in the forward direction to avoid a surging when the flow rate is low, as well as securing a wide operating range, without using mechanical means. The centrifugal fluid machine 1 includes an impeller 12 mounted to a rotation shaft and a housing 4 for housing the impeller 12. The air intake duct structure 10 is for directing a fluid “f” to a rotational center 12a of the impeller 12 housed in the housing 4 via an intake duct portion 4a of the housing 4 protruding in an axial direction of the rotation shaft, the fluid “f” flowing in a substantially orthogonal direction to a rotational axis line 3.
Inventors: Isao Tomita, Masaki Tojo, Takao Yokoyama
Patent number: 9631625
Abstract: A statorless axial turbine for a turbocharger has a turbine housing assembly defining a meridionally divided scroll extending circumferentially and surrounding the turbine wheel, the meridionally divided scroll defining a first scroll extending substantially fully about the turbine wheel and a separate second scroll extending substantially fully about the turbine wheel. The turbine housing assembly defines a separate inlet for each of the first and second scrolls through which a separate exhaust gas stream is received, and separate first and second outlets for each of the first and second scrolls, respectively, through which the respective exhaust gas streams are fed into an inlet side of the turbine wheel generally in an axial direction of the turbine wheel.
Inventors: Vit Houst, Vaclav Kares
Thinned heat dissipation fan with core reversely installed
Patent number: 9631638
Abstract: A thinned heat dissipation fan with core reversely installed includes: a base including a bottom plate and a lateral wall formed at the periphery of the bottom plate; a circuit unit disposed on the bottom plate; a core welded in a core welding hole formed on the bottom plate of the base or welded in a core welding hole of a sleeve seat fastened on the base; and a rotor set including a hub, a plurality of blades disposed at the periphery of the hub, a bearing module and a permanent magnet disposed at the inner sides of the plural blades, wherein the hub is formed with a bearing opening, the bearing module is fastened in the bearing opening, and the core is inserted in the bearing module. The above-mentioned welding means is preferably to be a laser welding means.
Assignee: COOLER MASTER (KUNSHAN) CO., LTD.
Inventors: Fu-Lung Lin, Hui-Hai Yang, Tong-Xian Chen
Patent number: 9587554
Abstract: A twin-scroll turbocharger comprises front and rear scrolls, a scroll throat portion separating the scrolls, a rotor blade rotated by exhaust gas, and a turbine housing forming, with an outer circumferential portion of the rotor blade, the front scroll and the rear scroll, and including an inclined surface on which an extended line of the incline facing toward the scroll throat portion of the front scroll and an inlet of the rotor blade intersect at a position in a central portion of the inlet of the rotor blade, wherein the connection R at a crossing portion P where the inclined surface and an inner periphery surface of the turbine housing intersect has a shape such that the gap of a constant width a continues to the position of the inlet of the rotor blade.
Inventors: Toru Hoshi, Takao Yokoyama
Cooled two-stage turbocharging system
Patent number: 9441534
Abstract: An internal combustion engine includes a cylinder block defining a cylinder, a cylinder head, and an exhaust manifold operatively connected to the cylinder head and configured to exhaust post-combustion gasses from the cylinder. The engine also includes a turbocharging system configured to pressurize an airflow for delivery thereof to the cylinder. The turbocharging system includes a low-flow turbocharger having a first turbine housing and a high-flow turbocharger having a second turbine housing. Each turbocharger is configured to be driven by the post-combustion gasses from the exhaust manifold in order to pressurize the airflow and discharge the pressurized airflow to the cylinder. The turbocharging system also includes a flow control device for selectively directing the post-combustion gasses to the low-flow and high-flow turbochargers. The turbocharging system additionally includes a cooling module configured to cool the second turbine housing. A vehicle employing such an engine is also disclosed.
Inventors: Ko-Jen Wu, Jason G. Kohler
Axial turbine with sector-divided turbine housing
Patent number: 9429162
Abstract: A statorless or nozzleless axial turbine for a turbocharger has an axial turbine wheel that receives a swirling flow of exhaust gas substantially in an axial direction. The turbine includes a sector-divided turbine housing defining a plurality of separate exhaust gas inlets each for receiving a separate exhaust gas stream from an internal combustion engine, the sector-divided turbine housing further defining a plurality of separate angular sector passageways each of which occupies a fractional part of a circumference surrounding the turbine wheel, each angular sector passageway being supplied with exhaust gas by a respective one of the plurality of exhaust gas inlets. The turbine housing assembly defines a separate sector outlet for each angular sector passageway. The turbine housing assembly can include a separately formed heat shroud, and the sector outlets can be formed at least in part by the heat shroud.
Patent number: 9399923
Abstract: In a turbine for an exhaust gas turbocharger having a turbine housing which has a first and a second spiral channel with the second spiral channel extending over a wrap angle range of less than 360 degrees of a turbine wheel of the turbine, and the first spiral channel having a larger wrap angle range than the second spiral channel and the spiral channels being arranged adjacent each other in at least one angular range which includes the wrap angle ranges, the nozzle has an overall nozzle width via which exhaust gas is admitted to the turbine wheel over a respective partial nozzle width of the spiral channels wherein the partial nozzle width of the first spiral channel is greater than the partial nozzle width of the first spiral channel in the first angular range, at least in a further angular range of the wrap angle range which is different from the at least one angular range.
Inventors: Nils Brinkert, Siegfried Sumser
Supercharged internal combustion engine with two-channel turbine and method
Patent number: 9366177
Abstract: A supercharged internal combustion engine comprising a two channel turbine fluidly connects the two channels within the turbine housing by virtue of at least one opening in the housing wall which separates the two channels wherein at least one displaceable wall part is provided which serves for opening up the opening in the housing wall to optimize the performance of the turbine responsive to the exhaust gas flow rate.
Inventors: Helmut Matthias Kindl, Norbert Andreas Schorn, Vanco Smiljanovski, Rob Stalman, Franz Arnd Sommerhoff
Patent number: 9359939
Abstract: A supercharged internal combustion engine wherein a two-channel turbine comprising a shut-off body positioned within a flow transfer duct within a turbine housing fluidly couples the two channels of a turbine housing to one another via the transfer duct responsive to the exhaust gas flow rate to enable better operation of the turbocharger.
Patent number: 9322413
Abstract: Disclosed herein is a centrifugal fan. A driving device is connected to an impeller and drives the impeller to rotate within a case. The flowing channel includes a pressure-enhanced section and an output section. The case includes an air input section, an axial inlet section and a radial air outlet. The bottom base has a center and allows the driving device to be secured thereon. Multiple ribs are interconnected between the bottom base and the case to define air inlets among the ribs, the bottom base and the case. The air inlet within the output section has an outmost edge, which is farther from the center than an outmost edge of the air inlet within the pressure-enhanced section, or the air inlet within the output section has an area, which is larger than that of the air inlet within the pressure-enhanced section.
Inventors: Hsin-Chen Lin, Hsiang-Jung Huang
Patent number: 8974195
Abstract: A fan includes a housing and a motor. The housing has a compartment, at least one lateral air inlet and at least one lateral air outlet. The lateral air inlet and lateral air outlet communicate with the compartment. The motor has a stator and an impeller. The impeller is coupled with the stator and includes a hub and a plurality of blades coupled with a top face of the hub. Each blade has first and second ends. The first ends of the blades face outwards, and the second ends of the blades define an air-guiding room encompassed by a virtual geometric pattern formed by a virtual line linking the second ends of the blades. The virtual geometric pattern has a maximal diameter. A gap is formed between the second ends of two adjacent blades. The gap is smaller than the maximal diameter of the virtual geometric pattern.
Inventors: Alex Horng, Ko-Chien Wang
Publication number: 20140377059
Abstract: Methods and systems are provided for injecting exhaust gases from an exhaust gas recirculation system proximate to a trailing edge of a compressor wheel of a compressor. In one example, a compressor of a turbocharger may include an exhaust gas recirculation inlet volute within a casting of the compressor. The exhaust gas recirculation inlet volute may include an injection port positioned downstream of the trailing edge of the compressor wheel for injecting exhaust gases into intake air flow.
Inventors: Joseph Norman Ulrey, Keith Michael Plagens, Gregory Patrick McConville, Daniel Joseph Styles
Publication number: 20140356153
Abstract: To provide a turbocharger capable of turbocharging efficiency and reducing cost by suppressing a rapid expansion of exhaust gas blown from an outlet of a scroll in the vicinity of an inlet of a rotor blade, a twin-scroll turbocharger (1) comprises a rear scroll (22), a front scroll (21), a scroll throat portion (24) configured to separate the scrolls, a rotor blade (3) configured to be rotated by exhaust gas, and a turbine housing (2) configured to form, with an outer circumferential portion of the rotor blade (3), the front scroll (21) and the rear scroll (22), and includes an inclined surface (28) on which an extended line of the incline of the surface facing toward the scroll throat portion (24) of the front scroll and an inlet (3a) of the rotor blade intersect at a position in a central portion of the inlet (3a) of the rotor blade, wherein the connection R at a crossing portion P where the inclined surface (28) and an inner periphery surface (26) of the turbine housing (2), having a gap of a constant widt
Impulse wind machine
Patent number: 8864455
Abstract: An impulse wind machine comprises the following: A funnel configured to capture air from the wind. A turbine housing configured to direct the air to the center (eye) of the housing where the air passes through directional vanes. A rotor configured to rotate within the eye of the turbine housing and configured with impulse blades along the longitudinal periphery. Air from the directional vanes impinges the impulse blades to cause rotor rotation. An exhaust deflector configured inside the cavity of the rotor to deflect exhaust air from the impulse blades axially out the ends of the rotor. Spokes on the rotor configured to provide a fan action during rotor rotation aiding removal of the exhaust air. A generator and a gearbox driven by a shaft connected to the rotor for generating electrical power.
Inventor: Loyd Dale Perry
Patent number: 8857178
Abstract: A turbocharger for an internal combustion engine includes a center housing, a shaft rotatably supported in the center housing, and a turbine wheel connected at one end of the shaft. A turbine housing is connected to the center housing and disposed around the turbine wheel. A bore formed in the turbine housing extends from a gas outlet end of the turbine housing to an annular stop surface of the turbine housing disposed adjacent the turbine wheel. A nozzle ring disposed in the bore surrounds a portion of the turbine wheel. An outlet cone is disposed at least partially in the bore and surrounds a remaining portion of the turbine wheel. The outlet cone is connected to the gas outlet end of the turbine housing.
Inventor: Steve O'Hara
Turbine housing for a supercharger
Patent number: 8807929
Abstract: A turbine housing for a supercharger, includes an inlet opening, a turbine seat and a race extending from the inlet opening to the turbine seat, the race including a first spiral chamber (7) which mouth into the turbine seat and a second spiral chamber (8) which mouth into the turbine seat. Both the first spiral chamber (7) and the second spiral chamber (8) mouth in a first angular segment (?) of the turbine seat, the axial height of the mouth into the turbine seat of the second spiral chamber (8) in the first angular segment (?) is bigger in the end of the first angular segment (?) than in the beginning thereof seen in a flow direction (F), and in that the A/R-ratio of the first spiral chamber (7) is smaller than the common A/R-ratio of the first spiral chamber (7) and the second spiral chamber (8).
Assignee: Alpraaz AB
Inventor: Christian V. Koenigsegg
Patent number: 8726655
Patent number: 8702403
Abstract: A fan includes a housing having a compartment formed inside, and at least one lateral air inlet and at least one lateral air outlet both penetrating through the inner and outer surfaces of the housing and communicating with the compartment. A motor is mounted inside the compartment of the housing and has a stator and an impeller, with the impeller rotatably coupled to the stator and further containing a hub and a plurality of blades mounted to a top of the hub. Each blade has a first end and a second end in the radial direction of the impeller opposite to each other, with the first end of each blade facing outward, and with the second ends of the plural blades defining an airflow-area.
Inventors: Alex Horng, Ko-Chien Wang, Yeh-Feng Chen
Compact and strengthened rotor assembly of a radiator fan
Patent number: 8690552
Abstract: A compact, strengthened rotor assembly of a radiator fan, the radiator fan having a baseplate, a stator assembly, a rotor assembly and a reverse axle. The reverse axle is erected at the center of the baseplate or stator assembly and protruded upwards. The rotor assembly has a hub with a top wall and a circumferential wall. A magnetic ring is set annularly into the circumferential wall. Several blades are set annularly onto the exterior of the circumferential wall. A metal sleeve is located at the center of the top wall and protruded downwards. A mating portion is set at the top of the metal sleeve for mating with the top wall. A holding portion is formed within the metal sleeve for assembly and positioning of a bearing, and the bearing is used for pivoting of the reverse axle. The thickness of the top wall ranges between 0.2 mm and 0.5 mm.
Inventors: Liang-Sheng Chang, Tien-Chin Wu, Sheng-Chi Lei, Evan Chang
Patent number: 8672650
Abstract: A cooling fan includes a housing and a motor. The housing includes a support portion, a cover portion and a lateral wall portion. The lateral wall portion is disposed between the cover portion and the support portion, and the lateral wall portion, support portion and the cover portion define a compartment, with the lateral wall portion having at least one lateral air inlet and at least one lateral air outlet penetrating through the lateral wall portion and communicating with the compartment. The motor is mounted inside the compartment of the housing and contains a stator and a impeller, with the impeller rotatably mounting to the stator. The motor further contains a hub with a top and a plurality of blades, with the top facing the cover portion, with the top and the cover portion delimiting a lateral flow path in the compartment, and with each blade being contained in the lateral flow path.
Turbocharger with integrated actuator
Patent number: 8641363
Abstract: A turbocharger having a turbine with a wastegate, and a compressor including a compressor housing, a compressor wheel, and a wastegate actuator. The turbine wheel includes blades defining an inlet. The compressor housing has an inlet wall leading to the inlet, and a shroud wall surrounding the blades. The actuator includes a base that is integral with the inlet wall, and an electric motor that is attached to the base. The shroud wall forms a first port that is in direct fluid communication with the actuator chamber, and the inlet wall forms a second port that is in direct fluid communication with the actuator chamber. Air from the first port to passes through the actuator housing and out the second port. This airflow convectively cools the working components of the actuator, while the connection of the motor to the inlet wall conductively cools the motor.
Inventors: Andrew C. Love, Nicolas Devulder
Turbocharger for an internal combustion engine of a motor vehicle
Patent number: 8621863
Abstract: In a turbocharger for an internal combustion engine of a motor vehicle, comprising a turbine housing having first and second spiral passages, each of which is connected to at least one exhaust gas line of an exhaust train of the internal combustion engine and a turbine wheel disposed within a rotor chamber of the turbine housing and connected to a compressor impeller via a drive shaft for rotation with the impeller, the exhaust gas of the internal combustion engine can be routed through the spiral passages for admission to the turbine wheel via the first and second spiral passages which have different wrap angles around the turbine wheel.
Inventors: Stephan Krätschrner, Wolfram Schmid, Michael Stiller, Siegfried Sumser
Patent number: 8591177
Abstract: In a radial turbine scroll, an operating gas is led to flow in the radial direction from a spiral scroll formed in a turbine casing into turbine moving blades of a turbine rotor, which is positioned on the inner side of the scroll, so as to act on the turbine moving blades, and then led to flow outside in an axial direction, thereby rotatively driving the turbine rotor, wherein the scroll 4 has a partition plate 20 a length of a certain range on a line of a tongue portion formed on the inner periphery of a gas inlet portion or has a reduced height between scroll side walls at an outlet portion of a tongue portion 21 formed on the inner periphery of a gas inlet portion of the scroll.
Inventors: Takao Yokoyama, Katsuyuki Osako, Motoki Ebisu
TURBINE SCROLL PART STRUCTURE
Publication number: 20130266433
Abstract: In a turbine scroll part structure of a radial turbine, a flow passage 3 of a connecting part between an exhaust gas inlet into a turbine housing 5 and a scroll part 1 is offset along an axis line L1 of a rotating shaft of a turbine rotor in an amount H, and a cut-out portion P is formed in a tongue portion 2, which separates the flow passage 3 from a blade side passage 4 through which the exhaust gas flows toward blades 6, for the exhaust gas to flow from the flow passage 3 into the blade side passage 4.
Inventors: Takao Yokoyama, Katsuyuki Osako, Takashi Shiraishi, Koji Wakashima
Radial compressor, particularly for an exhaust gas turbocharger of an internal combustion engine
Patent number: 8522549
Abstract: In a radial compressor, particularly of an exhaust gas turbocharger of an internal combustion engine, having a compressor housing within which a compressor wheel is disposed for compressing air from an inflow channel of the compressor housing and directing the air to an outflow channel of the compressor housing, the compressor housing comprising a bypass channel having a first flow opening upstream of an axial compressor wheel inlet and a second flow opening downstream of the compressor wheel inlet, the compressor housing is configured at least in a flow region upstream of the second flow opening in an asymmetric manner with regard to a rotational axis of the compressor wheel.
Inventors: Siegfried Sumser, Stephan Krätschmer, Michael Stiller
Publication number: 20130219885
Abstract: A variable geometry turbocharger is simplified yet able to maintain pulse energy. In a first embodiment, a turbine housing is provided with a pivoting flow control valve which pivots about a point near the entry to the turbine housing. By moving the valve about the pivot point, the effective volume of the turbine housing volute is varied, thus effectively reducing the volume of exhaust gas in the volute, allowing control of exhaust gas flowing to the turbine wheel. In the second embodiment of the invention, a rotating wedge segment within the volute is rotated from a first position to a second position, changing the effective volume of the volute and allowing control of exhaust gas flowing to the turbine wheel.
Inventors: John P. Watson, David G. Grabowska
Patent number: 8500398
Abstract: A turbocharger heat shield is disposed around a turbocharger turbine housing and comprises first and second heat shield members each having a wall structure that is generally semi-cylindrical in shape. The heat shield members are removably attached with one and include axially opposed openings, and a radial opening, to accommodate passage of other turbocharger components therethrough. A third heat shield member may be included to cover a further element of the turbocharger. One or more tabs project from an edge of the first or second heat shield member to register with an adjacent edge of the other member to facilitate alignment, engagement and/or attachment between the two members. An insulating material can be interposed between the heat shield and the turbocharger housing and, in a preferred embodiment, is attached to the heat shield.
Assignee: Walker Design, Inc.
Patent number: 8480360
Abstract: A turbocharger turbine having a double-layer flow passage and a variable cross-section, including a turbine housing, a volute diffuser channel, a power turbine, a volute gas feeding passage, and a partition wall. The volute gas feeding passage is arranged in the turbine housing. The partition wall is arranged in the volute gas feeding passage and divides the volute gas feeding passage into an external volute gas feeding passage and an internal volute gas feeding passage. The external volute gas feeding passage is located outside the internal volute gas feeding passage. The combination of the external and internal volute gas feeding passages forms different flow areas, sufficiently utilizing the waste gas energy of engines in a segmented mode. The variable cross-section turbine has a simple structure, is easy to upgrade at low cost, and can be easily mass-manufactured.
Assignee: Kangyue Technology Co., Ltd.
Inventors: Hang Wang, Yanzhao Li, Xilu Guo, Hengxing Yang, Lunhai Guo
SHEET METAL TURBINE HOUSING
Publication number: 20130156567
Abstract: The turbine housing 1 is formed by sheet metal scroll members 5 and 7 butted opposite each other and welded together. A center core part 9 arranged in a central part of the scroll part 3 is integrally formed in one piece from a steel pipe member such as to include a housing portion 93 surrounding a turbine wheel 24, a bearing receiving portion 91 axially supporting the turbine wheel 24, and a plurality of circumferentially spaced supports 92 bridging a gap between the housing portion 93 and the bearing receiving portion 91.
Inventors: Satomi Nagae, Daigo Watanabe, Motoki Ebisu, Michio Kyoya, Toru Kikuchi
Publication number: 20130121821
Abstract: This centrifugal blood pump apparatus includes an impeller provided in a blood chamber, a first permanent magnet provided in one surface of the impeller, and a second permanent magnet provided in an inner wall of the blood chamber, for attracting the first permanent magnet. The attractive force between the first permanent magnet and the second permanent magnet on the opening side of a sidewall of the blood chamber is set to be smaller than the attractive force between the first permanent magnet and the second permanent magnet on the opposite side of the opening. As a result, inclination of the impeller with respect to a dividing wall during pump operation can be prevented.
Applicants: TERUMO KABUSHIKI KAISHA, NTN CORPORATION
Inventors: Takayoshi Ozaki, Hiroyuki Yamada, Kenichi Suzuki, Ken Sugiura
TURBINE HOUSING FOR A TURBOCHARGER OF TWIN SCROLL TYPE
Publication number: 20130121820
Abstract: In a turbine housing 12 of a turbocharger 10A of a twin-scroll type, a scroll-shaped passage is separated into a front scroll passage 42 and a rear scroll passage 44 by a partition wall 40. A front wall 50 and a root part 40b of the partition wall 40 curve toward a front side to secure cross-sectional areas a1, a2, a3 . . . and b1, b2, b3 . . . . The scroll passages 42, 44 are formed to have equal cross-sectional areas, a tip part 40a of the partition wall 40 is arranged perpendicular to the turbine rotor blade 26 and the scroll passages 42, 44 are symmetrical near the tip part 40a about an axis X so as to eliminate the flow rate difference.
Inventors: Toyotaka Yoshida, Motoki Ebisu
TURBINE HOUSING OF TURBOCHARGER FOR VEHICLE
Publication number: 20130108429
Abstract: A turbine housing of a turbocharger for a vehicle that may be connected to an exhaust manifold and in which a turbine wheel may be rotated using kinetic energy of exhaust gas therein, may include a turbine wheel accepting portion having a circular hole shape so as to receive the turbine wheel therein, a scroll portion surrounding the turbine wheel accepting portion therein, wherein an exhaust gas passage may be formed along a rotating direction of the turbine wheel through the scroll portion, a partition dividing the exhaust gas passage of the scroll portion into at least two passages, and a slit formed at the partition in a radial direction of the partition.
Inventors: KYUNG SUB SUNG, KIL MIN MOON, DONG HO CHU, SANG JOON PARK