Inlet Scroll Patents (Class 415/205)
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Patent number: 8641363Abstract: 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.Type: GrantFiled: December 29, 2010Date of Patent: February 4, 2014Assignee: Honeywell International Inc.Inventors: Andrew C. Love, Nicolas Devulder
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Patent number: 8621863Abstract: 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.Type: GrantFiled: October 22, 2010Date of Patent: January 7, 2014Assignee: Daimler AGInventors: Stephan Krätschrner, Wolfram Schmid, Michael Stiller, Siegfried Sumser
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Patent number: 8591177Abstract: 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.Type: GrantFiled: October 14, 2009Date of Patent: November 26, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Takao Yokoyama, Katsuyuki Osako, Motoki Ebisu
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Publication number: 20130266433Abstract: 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.Type: ApplicationFiled: December 16, 2011Publication date: October 10, 2013Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Takao Yokoyama, Katsuyuki Osako, Takashi Shiraishi, Koji Wakashima
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Patent number: 8522549Abstract: 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.Type: GrantFiled: November 27, 2010Date of Patent: September 3, 2013Assignee: Daimler AGInventors: Siegfried Sumser, Stephan Krätschmer, Michael Stiller
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Publication number: 20130219885Abstract: 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.Type: ApplicationFiled: November 3, 2011Publication date: August 29, 2013Applicant: BORGWARNER INC.Inventors: John P. Watson, David G. Grabowska
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Patent number: 8500398Abstract: 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.Type: GrantFiled: October 9, 2009Date of Patent: August 6, 2013Assignee: Walker Design, Inc.Inventor: Robert A. Walker, Jr.
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Patent number: 8480360Abstract: 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.Type: GrantFiled: December 31, 2011Date of Patent: July 9, 2013Assignee: Kangyue Technology Co., Ltd.Inventors: Hang Wang, Yanzhao Li, Xilu Guo, Hengxing Yang, Lunhai Guo
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Publication number: 20130156567Abstract: 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.Type: ApplicationFiled: December 7, 2011Publication date: June 20, 2013Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Satomi Nagae, Daigo Watanabe, Motoki Ebisu, Michio Kyoya, Toru Kikuchi
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Publication number: 20130121820Abstract: 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.Type: ApplicationFiled: October 12, 2011Publication date: May 16, 2013Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Toyotaka Yoshida, Motoki Ebisu
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Publication number: 20130121821Abstract: 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.Type: ApplicationFiled: June 28, 2011Publication date: May 16, 2013Applicants: TERUMO KABUSHIKI KAISHA, NTN CORPORATIONInventors: Takayoshi Ozaki, Hiroyuki Yamada, Kenichi Suzuki, Ken Sugiura
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Publication number: 20130108429Abstract: 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.Type: ApplicationFiled: June 6, 2012Publication date: May 2, 2013Applicant: Hyundai Motor CompanyInventors: KYUNG SUB SUNG, KIL MIN MOON, DONG HO CHU, SANG JOON PARK
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Publication number: 20130078087Abstract: A centrifugal coolant pump, comprising a water inlet coupling flange(1), an impeller (2), a volute casing (3), a bearing (4), a bearing housing (5), a transmission shaft (6), and fasteners (7). The bearing (4) is interference installed in the bearing housing (5). The transmission shaft (6) and the bearing (4) inner race are interference fitted together. The impeller (2) is interference installed on the transmission shaft (6). The water inlet coupling flange (1) and the bearing housing (5) are separately disposed on the two sides of the volute casing (3) and fixedly connected via the fasteners (7). The water inlet coupling (1) is provided with a first water inlet (A11), and the volute casing (3) is provided with a second water inlet (B12). The impeller (2) mates with the volute casing (3) to form an independent high-temperature flow path (9) and a low-temperature flow path (8).Type: ApplicationFiled: September 14, 2011Publication date: March 28, 2013Inventors: Xiaodong Huang, Qingxu Wang, Xiaofei Chen, Zhiming Wei, Jiansong Tan
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Patent number: 8336310Abstract: A variable turbocharger including a turbine housing, a first scroll fluidly communicating with a turbine, a second scroll formed along an outside of the first scroll, wherein the first scroll and the second scroll are disposed within the turbine housing for exhaust gas to exhaust through the turbine, a partitioning unit for selectively separating the first scroll and the second scroll, and a a flux control valve disposed at the exhaust gas inflow portion and selectively coupled to the partitioning unit for blocking the exhaust gas from flowing into the second scroll. The variable turbocharger may prevent turbo lag at a low speed and be highly efficient at a high speed.Type: GrantFiled: October 5, 2011Date of Patent: December 25, 2012Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jin Kook Kong, Soo Hyung Woo, Young Nam Kim, Young Jin Won, Young-Ju Kim, Jin Wook Son, Jeong-Hwa Cha
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Patent number: 8333550Abstract: A twin scroll exhaust gas turbocharger for an internal-combustion engine, includes a turbine housing and a first and a second gas inlet port separated from one another by the turbine housing. The inlet ports lead into a first and a second spiral duct, respectively, which extend radially on the outside around an exhaust gas turbine rotatable about an axis. The gas inlet ports are arranged at least in sections parallel to one another in the turbine housing and radially with respect to the axis of rotation in a mutually spaced manner. The first spiral duct, which connects to the first gas inlet port arranged closer to the axis of rotation, extends up to 180° around the exhaust gas turbine. The second spiral duct, which connects to the second gas inlet port farther away from the axis of rotation, extends up to 180° around the remaining circumference of the exhaust gas turbine. As a result, thermal stress to the turbine housing is significantly reduced.Type: GrantFiled: May 6, 2011Date of Patent: December 18, 2012Assignee: Bayerische Motoren Werke AktiengesellschaftInventor: Thomas Fahl
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Patent number: 8312719Abstract: A variable turbocharger including a turbine housing, a first scroll fluidly communicating with a turbine, a second scroll formed along an outside of the first scroll, wherein the first scroll and the second scroll are disposed within the turbine housing for exhaust gas to exhaust through the turbine, a partitioning unit for selectively separating the first scroll and the second scroll, and a flux control valve disposed at the exhaust gas inflow portion and selectively coupled to the partitioning unit for blocking the exhaust gas from flowing into the second scroll. The variable turbocharger may prevent turbo lag at a low speed and be highly efficient at a high speed.Type: GrantFiled: November 20, 2008Date of Patent: November 20, 2012Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jin Kook Kong, Soo Hyung Woo, Young Nam Kim, Young Jin Won, Young-Ju Kim, Jin Wook Son, Jeong-Hwa Cha
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Patent number: 8267643Abstract: A pump includes a cutting impeller (38) and a pre-chopper (50) driven by a shaft portion (46) that projects axially from the cutting impeller (38), with the pre-chopper (50) being surrounded by an intake port (22) of the pump, the intake port having, at least on a part of its length, in the vicinity of the pre-chopper, a non-circular internal cross-section.Type: GrantFiled: July 1, 2009Date of Patent: September 18, 2012Assignee: Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KGInventors: Peter Wagner, Dirk Wenderott
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Patent number: 8266906Abstract: A turbine housing for a turbocharger for use in a reciprocating internal combustion engine includes a housing having a housing axis and configured to house a rotatable shaft having a turbine wheel disposed thereon. The housing includes a volute having a volute chamber disposed around the housing axis for receiving the turbine wheel. The volute has a first volute inlet providing a first flow path in fluid communication with the volute chamber and second volute inlet providing a second flow path in fluid communication with the volute chamber. The first volute inlet is circumferentially spaced about the housing axis from the second volute inlet by a phase angle ?. The first volute inlet is also radially spaced about the housing axis from the second volute inlet, and may also be axially spaced from the second volute inlet along the housing axis.Type: GrantFiled: March 11, 2009Date of Patent: September 18, 2012Assignee: GM Global Technology Operations LLCInventors: Ko-Jen Wu, Jian Jun Zhang, James C. Elmslie
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Patent number: 8254121Abstract: A cooler and a display device including the cooler. The cooler includes: a housing; an air blowing unit disposed inside the housing and sucking external air and blowing the external air in the housing, wherein the air blowing unit includes a plurality of groups each including two air blowers; a guide vane disposed above the air blowing unit and to guide air flowed out from the air blowing unit to flow in different directions; and a plurality of auxiliary guide vanes disposed between the air blowing unit and the guide vane, and each disposed in each of the groups each including two air blowers, so as to guide air flowing below the air blowing unit to flow toward the guide vane.Type: GrantFiled: August 25, 2010Date of Patent: August 28, 2012Assignee: Samsung Electronics Co., LtdInventors: Moon-chul Lee, Min-soo Kim, Yong-soo Lee, Sru Kim
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Patent number: 8235668Abstract: A multiblade air blower has a multiblade impeller, an orifice, an axially overlaid portion, and an airflow collision prevention device. The multiblade impeller includes a main plate and a blade. The blade is provided at the main plate to form a blade inner periphery. The orifice has an open end and an orifice inner periphery. The open end is positioned toward the main plate from a blade end face. The orifice inner periphery has an inner diameter larger than that of the blade inner periphery, and guides air to the multiblade impeller. The axially overlaid portion is a part where the orifice and the blades are overlaid. The airflow collision prevention device is provided at the blade and at an inner side of the orifice inner periphery. The multiblade air blower suppresses loss of air distribution efficiency and increased noise.Type: GrantFiled: December 8, 2006Date of Patent: August 7, 2012Assignee: Panasonic CorporationInventor: Seiji Shirahama
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Patent number: 8221063Abstract: A steam turbine with at least two steam chambers, which are enclosed by a basically tubular casing and which are separated from each other by means of at least one partition which is arranged in the casing, is characterized according to the invention in that the partition is formed from at least two flat partial surfaces which are formed in an inclined manner relative to each other.Type: GrantFiled: August 11, 2005Date of Patent: July 17, 2012Assignee: Siemens AktiengesellschaftInventor: Max Wiesenberger
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Patent number: 8221064Abstract: A transverse fan assembly, including for use with agricultural combine harvesters, which fan assembly includes a supplementary air feed inlet for the infill of air flow voids or deficiencies in the air flow pathway from the air inlet of the transverse fan assembly to the air inlet entryway so as to effect a desired, generally more uniform, output air flow pattern across the entire expanse of the air outlet of the transverse fan assembly, and a method of use thereof.Type: GrantFiled: November 18, 2008Date of Patent: July 17, 2012Assignee: CNH America LLCInventors: Jonathan E. Ricketts, Brandon P. Kolb
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Patent number: 8197188Abstract: A compressor for compressing a gas comprises an impeller wheel mounted within a housing (2) defining an inlet (8) and an outlet (6). The inlet (8) has a plurality of apertures (20) in the form of bores or grooves defined in its surface that serve as an integral silencer. The inlet (8) may comprise a map-width enhanced structure (4) with the bores provided on one to a number of surfaces. The design provides for a compact and efficient compressor with noise reduction such that higher pressure ratio designs may be adopted. The apertures (20) may be provided in the housing (2) that defines the inlet (8) or in a separate insert.Type: GrantFiled: August 23, 2007Date of Patent: June 12, 2012Assignee: Cummins Turbo Technologies LimitedInventors: David Christopher Clay, Xioazhen Sheng
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Patent number: 8166754Abstract: In an exhaust manifold for an internal combustion engine including a central part with tow exhaust gas flow ducts extending from the central part in opposite directions for collecting exhaust gas from first and respectively second cylinder groups of the engine, the center part includes a first control valve for controlling the exhaust gas flow from the first and the second cylinder groups to first and second turbine inlet flow passages, a second control valve for controlling the exhaust gas pressure and a third control valve for controlling the exhaust gas recirculation rate.Type: GrantFiled: December 19, 2008Date of Patent: May 1, 2012Assignee: Daimler AGInventors: Gerolf Frantzheld, Jürgen Orlich, Andreas Ruess
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Patent number: 8128356Abstract: To provide a mixed flow turbine in which supply of working fluid is designed to be supplied at a hub and a shroud, and the shape of the inlet-side edges of the blades is made to work effectively, thereby reducing incidence loss.Type: GrantFiled: February 10, 2009Date of Patent: March 6, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventor: Hirotaka Higashimori
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Publication number: 20120051899Abstract: An assembly includes a cast cartridge component and a curved wall where the cast cartridge includes a base plate having an opening configured for receipt of a turbine wheel, an exhaust conduit having an inlet and an outlet, a cylindrical wall, and vanes disposed between the cylindrical wall and the base plate where adjacent vanes define throats; where the curved wall includes a proximal end and a distal end, and an upper edge and a lower edge; and where joinder of the proximal end and the outlet of the exhaust conduit, joinder of the upper edge and the cylindrical wall and joinder of the lower edge and the base plate forms a volute configured to direct exhaust received via the inlet to a turbine wheel via the throats. Various other examples of devices, assemblies, systems, methods, etc., are also disclosed.Type: ApplicationFiled: August 26, 2010Publication date: March 1, 2012Inventors: Dominique Petitjean, Guillaume Dupont, Anthony Ruquart, Philippe Arnold, Manimurugan Palaniyappan, Manuel Marques, Jean-Jacques Laissus, Raphael Ceotto
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Patent number: 8062006Abstract: A non-positive-displacement machine (10), particularly a turbomachine for producing a mass flow, having a central housing part (11) inside which a turbine shaft is mounted. A turbine housing is mounted on the central housing part (11) on a turbine side and a compressor housing is mounted on the central housing part (11) on a compressor side. The spiral channels (17, 18) required for the compressor side and for the turbine side can be arranged in a partial area inside the covers (15, 16) and at least in one partial area inside the central housing part (11). This permits the contours, which are required for the spiral channels (17, 18) and which are geometrically complex, to be constructed in the central housing part (11).Type: GrantFiled: November 3, 2004Date of Patent: November 22, 2011Assignee: Mann + Hummel GmbHInventors: Karl-Ernst Hummel, Stephan Wild, Guenter Kroeger, Norbert Poppenborg
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Publication number: 20110252791Abstract: A turbocharger including a turbine wheel having a hub-to-tip ratio of no more than 60% and blades with a high turning angle, a turbine housing forming an inwardly spiraling primary-scroll passageway that significantly converges to produce highly accelerated airflow into the turbine at high circumferential angles, and a two-sided parallel compressor. The compressor and turbine each produce substantially no axial force, allowing the use of minimal axial thrust bearings.Type: ApplicationFiled: April 19, 2010Publication date: October 20, 2011Inventors: Jeffrey A. Lotterman, Vaclav Kares, Milan Nejedly, Daniel Turecek, Josef Ferda, Tomas Baron, Vit Houst
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Patent number: 7967557Abstract: A multiblade centrifugal blower includes a centrifugal fan including a hub rotated by a motor, and plural curved rectangular blades arranged at predetermined intervals in a circumferential direction of the hub forming a cylindrical basket with an opening on a front side of the hub, and a scroll casing including an air inlet and an air outlet, and houses the centrifugal fan inside to face the air inlet. A length from a rear end to an front end of an outer edge of the blade is shorter than a length from a rear end to an front end of an inner edge of the blade, and a bell mouth is configured such that distance between a tip part of the inner edge of the blade and an inner wall of the scroll casing is the minimum at an inner tip part P of the bell mouth of the air inlet.Type: GrantFiled: January 29, 2007Date of Patent: June 28, 2011Assignee: Mitsubishi Electric CorporationInventors: Kazuki Okamoto, Hitoshi Kikuchi, Yasuyoshi Makino, Hidetoshi Yamato, Shoji Yamada
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Patent number: 7938618Abstract: In a helicopter gas turbine engine, lips (30, 32) defining a radial air intake (34) are connected along an opening (12a) of an engine compressor air supply passage (12). The air intake lips are at least partially formed by a sound attenuator (40, 42) calculated to attenuate sound frequencies produced by the compressor rotation.Type: GrantFiled: September 13, 2007Date of Patent: May 10, 2011Assignee: TurbomecaInventor: Pierre Michel Baude
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Patent number: 7931437Abstract: A one piece axial flow turbine case with an inlet volute and an outlet volute with an axial flow turbine positioned between the inlet and outlet volutes, in which the turbine vanes and blades can be installed or removed from one side of the case without disassembling the two volutes. The one piece turbine case eliminates the mating flange, the flange seal, and the flange bolts required in the two piece turbine volute case. The one piece axial flow turbine case reduces the part count, reduces the weight of the turbine, improves the reliability of the turbine, and improved the performance of the turbine. The annular guide vane assembly with an annular outer shroud having guide vanes extending from the shroud is inserted through an opening of the turbine case. The vane outer shroud extends aft to form an outer shroud for the turbine blades.Type: GrantFiled: September 21, 2007Date of Patent: April 26, 2011Assignee: Florida Turbine Technologies, Inc.Inventor: Gabriel L. Johnson
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Publication number: 20110091318Abstract: In a turbine housing for an exhaust gas turbocharger of an internal combustion engine with at least one spiral channel, which can be coupled into an exhaust gas flow of an exhaust tract of the internal combustion engine, and a receiving space for a turbine wheel which is disposed downstream of the at least one spiral channel and can be acted upon by the exhaust gas of the internal combustion engine passing through the at least one spiral channel of the turbine housing, there is at least one partial housing including the at least one spiral channel, and a housing module which is fastened to the partial housing and has a vane structure disposed upstream of the receiving space which also includes an attachment surface for a bearing section of the exhaust gas turbocharger. The invention also resides in an exhaust gas turbocharger with such a turbine housing as well as to a method for producing such a turbine housing.Type: ApplicationFiled: November 27, 2010Publication date: April 21, 2011Inventors: Stephan Krätschmer, Paul Löffler, Markus Müller, Siegfried Sumser
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Patent number: 7883312Abstract: A centrifugal blower has: an impeller; and a casing that houses the impeller. The impeller has: a bottom plate; blades provided on a same circumference of the bottom plate; and a shroud that has the blades interposed between it and the bottom plate, disposed concentric with the bottom plate, and connects end sections of the respective blades. The shroud has: an inclined section that comes closer to the bottom plate moving from a radial direction inside to a radial direction outside; and a shroud side barrier that rises from a position on the radial direction outside of the inclined section towards a side opposite to the bottom plate. The casing has a bell-mouth that opens from a radial direction inside of the shroud to a radial direction outside, and a casing side barrier that projects to an area between the inner periphery of the shroud and the shroud side barrier.Type: GrantFiled: March 29, 2006Date of Patent: February 8, 2011Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Tsuyoshi Eguchi, Atsushi Suzuki, Tetsuo Tominaga
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Patent number: 7861525Abstract: A two-volute low pressure turbocharger is provided with a VGT mechanism in one turbine volute only.Type: GrantFiled: June 3, 2008Date of Patent: January 4, 2011Assignee: The United States of America as represented by the Administrator of the U.S. Environmental Protection AgencyInventor: David James Haugen
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Publication number: 20100316491Abstract: To provide a thermal insulation structure for a structural member and a scroll structure which can be easily used even in integrally constructed structural members and which can ensure reliability and thermal insulation properties. Provided are securing portions (52 and 53) extending outward from an outer wall of the structural member; a press plate (55) attached to the securing portions (52 and 53), with a gap between the press plate and the outer wall; and a thermal insulation member (56) disposed between the outer wall and the press plate (55).Type: ApplicationFiled: March 27, 2009Publication date: December 16, 2010Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shoki Yamashita, Toshihiro Inoue
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Patent number: 7798774Abstract: A turbine housing (13) for a radial flow turbine, particularly a turbine used in an exhaust gas turbocharger. The housing has a general volute shape with a substantially annular part extending around the turbine axis and an inlet duct (20) extending therefrom. The inlet duct (20) has a first wall facing part of the outer surface of the annular part of the housing, a pair of spaced webs (44) extending from the outer surface of the circular part of the housing to the first wall, the webs defining a valley (45) therebetween. The arrangement renders the housing stiffer and less prone to fatigue cracking.Type: GrantFiled: January 16, 2009Date of Patent: September 21, 2010Assignee: Cummins Turbo Technologies LimitedInventors: John Martin Allport, Georgina Chiu, Clive Robert Martin
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Publication number: 20100229551Abstract: A turbine housing for a turbocharger for use in a reciprocating internal combustion engine includes a housing having a housing axis and configured to house a rotatable shaft having a turbine wheel disposed thereon. The housing includes a volute having a volute chamber disposed around the housing axis for receiving the turbine wheel. The volute has a first volute inlet providing a first flow path in fluid communication with the volute chamber and second volute inlet providing a second flow path in fluid communication with the volute chamber. The first volute inlet is circumferentially spaced about the housing axis from the second volute inlet by a phase angle ?. The first volute inlet is also radially spaced about the housing axis from the second volute inlet, and may also be axially spaced from the second volute inlet along the housing axis.Type: ApplicationFiled: March 11, 2009Publication date: September 16, 2010Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Ko-Jen Wu, Jian Jun Zhang, James C. Elmslie
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Patent number: 7758305Abstract: A centrifugal fan has an inlet bell that induces turbulence in the intake air stream so as to better distribute air across the rotating radial fan blades and thereby increase fan efficiency. The “turbulator” feature is one or more preferably arcuate surfaces integrally formed in the inlet bell to either project into or away from the intake air stream. The turbulator disrupts smooth air flow across the inside surface of the inlet bell has the effect of randomizing the air at the boundary layer to reduce separation of the air from the inlet bell as it leaves the inlet bell and enters the impeller. The air can thus follow the contour of the inlet bell more closely to make a tighter radius turn as it enters the impeller. In so doing, air is delivered across more of the fan blades so that output air flow is increased.Type: GrantFiled: October 6, 2006Date of Patent: July 20, 2010Assignee: Greenheck Fan CorporationInventors: Scott S. Kurszewski, Timothy Kuski
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Publication number: 20100098535Abstract: A centrifugal multi-blade fan has multiple blades about a rotational shaft and draws in air along the rotational shaft and then blows the air approximately perpendicular to the rotational shaft to reduce wind noise. A scroll casing encloses the multi-blade fan and defines a scroll-shaped airflow passage for directing the air blown from the multi-blade fan. The scroll casing has an intake opening and an outlet opening at a scroll end, in a downstream scroll casing portion. The scroll casing expands such that a flow passage cross-sectional area on the airflow downstream side is larger than that on an airflow upstream side. A ratio of a blade length to a diameter of the multi-blade fan is greater than or equal to 0.12, and an outer scroll casing radius, relative to the rotational axis, increases as a logarithmic spiral, its expansion angle being from 3.3° to 4.8°.Type: ApplicationFiled: December 16, 2009Publication date: April 22, 2010Applicant: DENSO CORPORATIONInventors: Masaharu Sakai, Kouji Matsunaga, Yasushi Mitsuishi
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Patent number: 7677865Abstract: An air purifier includes a bell-mouth having an enhanced structure to prevent an increase of noise at a particular frequency when air flows into the blowing fan through the bell-mouth. The air purifier includes a housing, a filter unit and a blowing fan placed inside the housing, and a bell-mouth placed toward an intake side of the blowing fan. The bell-mouth includes an inlet port formed at a center of the bell-mouth, a flow guide extending from a periphery of the inlet port toward the blowing fan, and a flat section positioned to discontinue the flow guide to increase a distance between the blowing fan and the bell-mouth. The flat section is formed at the section in the range of about 240°˜330° with respect to a starting point of a scroll inside the bell-mouth. The flat section may have a saw-tooth shape to effectively distribute air passing therethrough.Type: GrantFiled: November 10, 2005Date of Patent: March 16, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jae Oh Han, Jai Kwon Lee, Jin Yong Mo
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Patent number: 7677237Abstract: A combustion furnace includes a blower housing with a centrifugal blower impeller disposed therein and plural heat exchanger tubes disposed substantially around a major portion of the periphery of the impeller. The heat exchanger tubes receive combustion gasses from plural burner nozzles and discharge combustion gasses to a plenum in communication with a motor driven inducer gas pump. The integrated blower housing and heat exchanger may be disposed in a cabinet including support structure for a fuel delivery manifold, associated burner nozzles and forming air inlet and outlet openings for air being circulated by the blower.Type: GrantFiled: April 3, 2007Date of Patent: March 16, 2010Assignee: Trane International Inc.Inventor: Stephen S. Hancock
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Publication number: 20090290980Abstract: To provide a mixed flow turbine in which supply of working fluid is designed to be supplied at a hub and a shroud, and the shape of the inlet-side edges of the blades is made to work effectively, thereby reducing incidence loss.Type: ApplicationFiled: February 10, 2009Publication date: November 26, 2009Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventor: Hirotaka Higashimori
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Patent number: 7574867Abstract: A hybrid microturbine to produce electrical output power within a engine housing, having a combustor, and a two spool multi stage compressor wherein the 1st spool has a compressor rotor and a turbine rotor as a turbocharger and the 2nd rotor spool has an alternator rotor integrated with a compressor rotor and turbine rotor. The two individual compressor rotors have rotating blades attached and located in compressor housings with fluid communication. The alternator rotor as part of the 2nd spool has permanent magnets integrated and positioned in close proximity and co-axial to the electrical stator module having an iron laminated structure with electrical wires. Relative rotational motion between the stator and alternator rotor cause electricity to be generated.Type: GrantFiled: March 25, 2004Date of Patent: August 18, 2009Assignee: TMA Power, LLCInventors: Joseph Michael Teets, Jon William Teets
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Patent number: 7574862Abstract: A turbocharger unit for a multicylinder internal combustion engine has at least two exhaust lines for the evacuation of exhaust gases from the combustion chamber of the engine and at least one inlet line for the supply of air to the combustion chamber. The turbocharger unit includes at least one turbine which cooperates with at least one compressor to extract energy from the exhaust flow of the engine and pressurize the inlet air of the engine. The turbine is provided with a worm-shaped housing having at least two flow paths which are defined by guide tongues in the housing and which conduct mutually separate exhaust flows via stator blades to at least one turbine wheel. In order to maintain the kinetic energy in the separate exhaust flows, each respective guide tongue meets a stator blade extending toward the tongue.Type: GrantFiled: September 22, 2004Date of Patent: August 18, 2009Assignee: Volvo Lastvagnar ABInventors: Kent Giselmo, Per Andersson, Magnus Ising
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Patent number: 7559742Abstract: A prewhirl type inlet casing for inducing a spiral stream in fluid has a suction passage arranged on an upstream side, being orthogonal to a rotary shaft of fluid machinery, and an internal passage connected to the suction passage, the internal passage being formed in a spiral shape so as to induce a swirl stream orthogonal to the rotary shaft in the fluid. A guide vane provided in the fluid passage in the inlet casing has a rectifying function capable of distributing flow rates in the swirl stream of the fluid in the internal passage between the swirl center side and the swirl outer peripheral side, and causing the fluid to deflect into the swirling direction of the swirl stream induced by the internal passage.Type: GrantFiled: May 6, 2005Date of Patent: July 14, 2009Assignee: Hitachi Industries Co., Ltd.Inventors: Yasuhiro Inoue, Takashi Aki, Seiji Kawabata, Sadashi Tanaka
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Patent number: 7513114Abstract: In an exhaust gas turbocharger for a reciprocating internal combustion engine comprising an exhaust gas turbine in the exhaust line and a compressor in the inlet line of the engine, the exhaust gas turbine has two exhaust gas flow passages, by way of which exhaust gas is fed to the turbine rotor, the ratio of the turbine rotor diameter to the compressor wheel diameter being set by a function, which is dependent on the displacement volume of the internal combustion engine.Type: GrantFiled: December 22, 2006Date of Patent: April 7, 2009Assignee: Daimler AGInventors: Siegfried Sumser, Wolfram Schmid, Helmut Finger
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Patent number: 7513741Abstract: A fan inlet flow distributor comprises a skewed elliptical cone or equivalent body installed between an inlet opening of a centrifugal blower and an adjacent wall that faces the inlet. When all of the incoming airflow approaches the blower from the same general direction parallel to the wall and then makes a right turn to enter the blower's inlet, the unique shape of the flow distributor promotes a circumferentially uniform flow pattern as the air enters the fan's inlet. In some embodiments, the flow distributor comprises a skewed elliptical hyperboloid near its base and a skewed elliptical paraboloid near its vertex. The flow distributor is preferably attached to the wall and spaced apart from the fan's housing to ensure an unobstructed flow path between the distributor and the fan housing.Type: GrantFiled: March 15, 2006Date of Patent: April 7, 2009Assignee: Trane International Inc.Inventors: William A. Smiley, III, Pravinchandra C. Mehta
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Patent number: 7488154Abstract: An intake housing for axial fluid flow engines, especially for axial-flow compressors, is proposed. The intake housing comprises an intake shaft (1) with a radial inlet (4) on one side and with an axial, rotationally symmetrical inlet cone (5), which forms an axial flow part (2) together with a jacket (6) protruding into the intake shaft (1) with an inlet edge (7). The axial flow part (2) is in connection with the inlet cross section of the fluid flow engine. The inlet edge (7) of the jacket (6) is connected with an annular diaphragm (9), which is directed at right angles to the axis (10) of the axial flow part (2). Furthermore, the diaphragm (9) is arranged mirror symmetrically at right angles to the axis (10) of the axial flow part (2) and asymmetrically in relation to the axis (10) of the axial flow part (2).Type: GrantFiled: July 26, 2005Date of Patent: February 10, 2009Assignee: Man Turbo AGInventors: Alexander Wiedermann, Martin Böhle
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Patent number: 7481056Abstract: An exhaust gas turbocharger for an internal combustion engine has a flow control gate that is timely pivotal and located within the exhaust gas inlet downstream of the flow splitter. Control is provided to timely pivot the flow control gate toward the turbine rotor and thus provides an initial high velocity spin to the rotor when turbo charged boost pressure is demanded from an adjustable direction flow control valve. The control valve uses boost pressure from the compressor to timely actuate a piston and lever connected to the pivotal flow control gate, or a signal from an engine control module (ECM) can be directed to a hydraulic, pneumatic or electrical actuator having a reciprocal control rod connected to the flow control gate.Type: GrantFiled: March 8, 2007Date of Patent: January 27, 2009Inventors: Jimmy L. Blaylock, Richard T. Brown
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Publication number: 20090003998Abstract: An engine assembly includes a scroll assembly including an inlet, an outlet, an inner section, and an outer section. Each of the inner section and the outer section extend between the inlet and the outlet with the outer section being longer than the inner section. The engine assembly further includes a combustor having an entrance for receiving fuel to be mixed with air and combusted in the combustor, an exit coupled to the inlet of the scroll assembly for delivering the combusted air-fuel mixture, including a hot stream, thereto, and a wall coupled between the entrance and the exit and including a plurality of dilution holes therethrough for deflecting the hot stream toward the outer section of the scroll assembly.Type: ApplicationFiled: June 27, 2007Publication date: January 1, 2009Applicant: HONEYWELL INTERNATIONAL, INC.Inventors: Gregory O. Woodcock, Ian L. Critchley