Plural And Arcuately Or Circularly Arranged Around Runner Axis Patents (Class 415/159)
  • Patent number: 9732764
    Abstract: A device for controlling positioning of variable-geometry equipment of a turbomachine, including a computer, an actuator of variable geometry driven by the computer, and a drive train, the actuator including moving parts including a sensor for measuring its elongation, the drive train being connected at one of its ends to a point of attachment of the moving parts and at another end to a point of attachment of the equipment, the point of attachment moving under action of the actuator along a travel limited by an end stop and the drive train being elastically deformable under the action of the actuator when the point of attachment is against the end stop. An elongation instruction supplied by the computer to the moving parts is defined as a difference with respect to the value of the elongation of the moving parts that corresponds to contact between the point of attachment and the end stop.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: August 15, 2017
    Assignee: SNECMA
    Inventors: Bruno Robert Gaully, Jean-Albert Paul Marc Robert
  • Patent number: 9719427
    Abstract: A platform seal assembly for a gas turbine engine with a turbine disk and a plurality of turbine blades is disclosed. The platform seal assembly includes a platform seal and a validation tab. The platform seal includes a first end, a second end, opposite and distal to the first end, and a body extending between the first end and the second end. The validation tab includes an attachment portion affixed to the platform seal and an observable indicator portion extending from the attachment portion.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: August 1, 2017
    Assignee: Solar Turbines Incorporated
    Inventors: Angelo Vincent Marasco, Olivier Jacques Louis Lamicq
  • Patent number: 9689275
    Abstract: A variable geometry turbo system that controls a flow of exhaust gas introduced into a turbine of a turbo charger may include a vane base ring in which the turbine may be positioned at a center thereof, a fixed vane which may be fixed onto a first surface of the vane base ring to guide the exhaust gas introduced into the turbine, a variable vane which may be pivotally positioned on the first surface of the vane base ring and adjacent to the fixed vane so as to vary a flow path of the exhaust gas introduced into the turbine, a vane cover ring fixed to the vane base ring with the fixed vane and the variable vane interposed therebetween, and an actuating module coupled to the variable vane and selectively actuating the variable vane.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: June 27, 2017
    Assignees: Hyundai Motor Company, Hyundai Wia Corporation
    Inventors: Kyung-Jae Jung, Seung Yeon Lee, Kwang Hwan Kim, Gil-Beom Lee, Jun Gwan Park, Sung-Jin Yang, Ui Yeon Park, Kyung-Wook Jin
  • Patent number: 9664193
    Abstract: In a turbine for an exhaust gas turbocharger with a turbine casing having a receiving chamber for accommodating a turbine wheel and at least one volute through which the exhaust gas is guided via a feed passage into the receiving chamber and wherein at least one guide element is provided in the turbine casing so as to project into the feed passage in a guide region for guiding the exhaust gas onto the turbine wheel, the guide element comprises a first length region in the axial direction of the turbine, in which the guide element is designed with respect to its aerodynamic properties differently from its aerodynamic design in a second length region adjoining the first length region.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: May 30, 2017
    Assignee: IHI CHARGING SYSTEMS INTERNATIONAL GMBH
    Inventors: Peter Fledersbacher, Manfred Guthoerle, Torsten Hirth, Andreas Mueller, Timo Schulz, Carsten Van Lil
  • Patent number: 9540990
    Abstract: A variable turbine geometry (VTG) exhaust-gas turbocharger in which guide vanes are adjusted by means of a unison ring, the structure of which has a simpler and thus more cost-effective design. The number of components is reduced, for example for rollers on pins as are provided in the case of known bearings. A very beneficial relationship between friction radius and rolling radius in the given installation space is obtained.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: January 10, 2017
    Assignee: BorgWarner Inc.
    Inventors: Dietmar Metz, Martin Mueller, Thomas Ramb
  • Patent number: 9103228
    Abstract: The present application provides a variable stator vane control system. The variable stator vane control system may include a variable stator vane positioned by an actuator and a trimmer motor, a resolver to determine a position of the variable stator vane, and a controller in communication with the resolver, the actuator, and the trimmer motor to prevent over travel of the variable stator vane.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: August 11, 2015
    Assignee: General Electric Company
    Inventors: Daniel Richard Waugh, Brian Allen Rittenhouse
  • Publication number: 20150132112
    Abstract: A variable turbine geometry (VTG) exhaust-gas turbocharger in which guide vanes are adjusted by means of a unison ring, the structure of which has a simpler and thus more cost-effective design. The number of components is reduced, for example for rollers on pins as are provided in the case of known bearings. A very beneficial relationship between friction radius and rolling radius in the given installation space is obtained.
    Type: Application
    Filed: April 19, 2013
    Publication date: May 14, 2015
    Inventors: Dietmar Metz, Martin Mueller, Thomas Ramb
  • Publication number: 20150118029
    Abstract: An exhaust-gas turbocharger which has a radial bearing with a simple design which can quickly and easily be mounted. A pin/rolling roller arrangement is provided as the radial bearing. The pin is in this case fixed on the vane bearing ring. The rolling roller is placed onto the pin and, in the mounted state, an inner wall region of the unison ring is supported on the rolling roller mounted rotatably on the pin.
    Type: Application
    Filed: April 19, 2013
    Publication date: April 30, 2015
    Inventors: Urban Radke, Nermin Osmanovic
  • Publication number: 20150118028
    Abstract: An exhaust-gas turbocharger (1) having a turbine (2), with a turbine wheel (3) surrounded by an intake duct (4), and a VTG cartridge (5), with a washer (6) and a vane bearing ring (7), which delimit the intake duct (4), and with a plurality of vanes (8), arranged in the intake duct (4) and mounted in the vane bearing ring (7) by way of rotatable vane shafts (9), which are connected to vane levers (10), the lever heads (11) of which engage into associated grooves (12) in a unison ring (13), which surrounds the vane bearing ring (7); and having a radial bearing between the unison ring (13) and the vane bearing ring (7). The vane levers (10) for forming the radial bearing are in the form of cam levers, the lever heads (11) of which are supported in the grooves (12).
    Type: Application
    Filed: April 19, 2013
    Publication date: April 30, 2015
    Inventors: Dietmar Metz, Martin Mueller, Thomas Ramb
  • Publication number: 20150110608
    Abstract: A variable geometry turbocharger includes a vane pack having rotatable vanes constrained by a pair of vane rings held together by a plurality of pins. A first end of each pin can be configured with a head. Each pin is received in a pair of aligned apertures in the vane rings such that the head of each pin engages one of the vane rings. A second end of each pin is deformed (e.g., by orbital riveting) such that it engages the other vane ring. Thus, a clamp load is applied to the vane rings, which can control the parallelism and distance between the vane rings so that the vanes can rotate with a minimum clearance without jamming. Also, the pins can maintain vane axle apertures in the vane rings in the correct angular position relative to each other. Such a vane pack configuration can reduce process time and cost.
    Type: Application
    Filed: March 22, 2013
    Publication date: April 23, 2015
    Applicant: BorgWarner Inc.
    Inventor: Rajendra Vemula
  • Patent number: 9011082
    Abstract: A rotational duct blocker for a gas turbine engine includes a duct blocker rotor and a duct blocker stator. The duct blocker rotor includes a plurality of first vane segments that extend radially between an inner rotor platform and an outer rotor platform, and a plurality of first flow apertures that extend axially through the duct blocker rotor. Each first flow aperture also extends circumferentially between respective adjacent first vane segments. The duct blocker stator includes a plurality of second vane segments that extend radially between an inner stator platform and an outer stator platform, and a plurality of second flow apertures that extend axially through the duct blocker stator. Each second flow aperture also extends circumferentially between respective adjacent second vane segments. The first vane segments move circumferentially relative to the second vane segments to regulate fluid flowing between the first flow apertures and the second flow apertures.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: April 21, 2015
    Assignee: United Technologies Corporation
    Inventors: James Jones, Roger W. Bursey, Jr., John H. Maurer, Larry B. Hawke, Ronald T. Clawson, Andrew P. Olech
  • Patent number: 8992165
    Abstract: A turbine wheel mounted within a housing rotating about a turbine axis; a gas flow control passage upstream of the turbine wheel between a radial first surface of a movable wall member and a facing wall of the housing, the movable wall member comprising second and third surfaces opposing the first surface. The movable wall member moves in an axial direction to vary the size of the gas flow control passage. A first gas region of the turbine, being upstream of the gas flow control passage, includes a portion of the gas flow control passage; a second gas region of the turbine downstream of the gas flow control passage containing the turbine wheel; and a third gas region of the turbine downstream of the turbine wheel. The first gas region comprises the first and second surfaces, and the second gas region or third gas region comprises the third surface.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: March 31, 2015
    Assignee: Cummins Turbo Technologies Limited
    Inventors: David Andrew Luck, Stephen Edward Garrett, Arun Tamil Selvan Vijayakumar
  • Patent number: 8992166
    Abstract: The invention relates to a turbocharger (1) with variable turbine geometry (VTG), having a turbine housing (2) with a supply duct (9) for exhaust gases, having a turbine rotor (4) which is rotatably mounted in the turbine housing (2); and having a guide grate (18), which surrounds the turbine rotor (4) radially at the outside, which has a blade bearing ring (6), which has a multiplicity of guide blades (7) which have in each case one blade shaft mounted in the blade bearing ring (6), which has an adjusting ring (5) which is operatively connected to the guide blades (7) by means of associated blade levers (20) fastened to the blade shafts (8) at one of their ends, with each blade lever (20) having, at the other end, a lever head (23) which can be placed in engagement with an associated engagement recess (24) of the adjusting ring (5), and which has a stop (25) at least for setting the minimum throughflow through the nozzle cross sections formed by the guide blades (7), wherein the stop (25) is formed as a part
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: March 31, 2015
    Assignee: BorgWarner Inc.
    Inventor: Thomas Ramb
  • Patent number: 8992164
    Abstract: The invention relates to a turbocharger (1) with variable turbine geometry (VTG), having a turbine housing (2) with a supply duct (9) for exhaust gases, having a turbine rotor (4) which is rotatably mounted in the turbine housing (2); and having a guide grate (18), which surrounds the turbine rotor (4) radially at the outside, which has a blade bearing ring (6), which has a multiplicity of guide blades (7) which have in each case one blade shaft (8) mounted in the blade bearing ring (6), which has an adjusting ring (5) which is operatively connected to the guide blades (7) by means of associated blade levers (20) fastened to the blade shafts (8) at one of their ends, with each blade lever (20) having, at the other end, a lever head (23) which can be placed in engagement with an associated engagement recess (24) of the adjusting ring (5), and which has a bearing arrangement (28) for fixing the adjusting ring (5) to the blade bearing ring (6), wherein the bearing arrangement (28) is formed as a plain bearing ar
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: March 31, 2015
    Assignee: BorgWarner Inc.
    Inventors: Thomas Ramb, Dietmar Metz
  • Patent number: 8944747
    Abstract: An actuation system includes a driving ring configured to rotate and having a groove on an internal face facing a central point of the driving ring; at least a linkage attached with a first end to an inside of the groove; and at least a lever arm attached to a second end of the at least a linkage. At least a portion of the at least a linkage stays inside the groove when the driving ring rotates.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: February 3, 2015
    Assignee: Nuovo Pignone S.p.A.
    Inventors: Franco Sarri, Giuseppe Iurisci, Marco Pelella
  • Publication number: 20150030438
    Abstract: An axial compressor includes: a spray nozzle (32) that supplies droplets to a working fluid before compression or being compressed; a variable stator vane (56) having a stem section (94) inserted in an insertion hole (73) in a casing (54), the variable stator vane (56) having an angle of attack varied through sliding motion relative to the casing caused by rotation of the stem section; a sealing groove (93) provided in a sliding portion between a thrust washer (82) slid relative to the casing during rotation of the stem section and the casing; and a sealing member (92) housed in the sealing groove.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 29, 2015
    Inventors: Yasuo TAKAHASHI, Chihiro MYOREN, Kohta KAWAMURA
  • Patent number: 8919119
    Abstract: Various systems and methods are described for a variable geometry turbine. In one example, a turbine nozzle comprises a central axis and a nozzle vane. The nozzle vane includes a stationary vane and a sliding vane. The sliding vane is positioned to slide in a direction substantially tangent to an inner circumference of the turbine nozzle and in contact with the stationary vane.
    Type: Grant
    Filed: August 16, 2011
    Date of Patent: December 30, 2014
    Assignee: Ford Global Technologies, LLC
    Inventors: Harold Huimin Sun, Jizhong Zhang, Liangjun Hu, Dave R. Hanna
  • Publication number: 20140360160
    Abstract: Embodiments may provide variable geometry turbine, a nozzle vane for a variable geometry turbine, and a method. The variable geometry turbine that may include a turbine wheel and a plurality of adjustable vanes radially positioned around the turbine wheel. The turbine may also include a flow disrupting feature on one or more outside surfaces of one or more of the plurality of adjustable vanes.
    Type: Application
    Filed: June 11, 2013
    Publication date: December 11, 2014
    Inventors: Harold Huimin Sun, Liangjun Hu, Ben Zhao, Dave R. Hanna
  • Publication number: 20140341719
    Abstract: Embodiments of the present invention may include a variable nozzle turbocharger having a variable nozzle mechanism. The variable nozzle mechanism has a unison ring and a drive arm. The unison ring adjusts a degree of opening of variable nozzles having nozzle vanes through rotation of the unison ring. The unison ring has a first fit-engagement groove. The first fit-engagement groove has a closing side surface of a concave arcuate shape and an opening side surface of a convex arcuate shape facing the closing side surface with a fixed groove width therebetween. A drive arm has a first fit-engagement portion engaged with the first fit-engagement groove so that the first fit-engagement portion is rotatable and movable in the radial direction of the unison ring. The first fit-engagement portion has a closing side contact surface of a convex arcuate shape that is able to contact the closing side surface.
    Type: Application
    Filed: May 15, 2014
    Publication date: November 20, 2014
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tsuyoshi UESUGI, Hiroaki IKEGAMI
  • Publication number: 20140341718
    Abstract: Embodiments of the present invention may include a variable nozzle turbocharger having a variable nozzle mechanism for controlling a flow velocity of exhaust gas to a turbine wheel. The variable nozzle mechanism includes a plurality of variable nozzles, a unison ring and a biasing member. The variable nozzles each have a nozzle vane. The unison ring is configured to adjust a degree of opening of the variable nozzles through rotation of the unison ring. The biasing member biases the unison ring so as to open the variable nozzles.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 20, 2014
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tsuyoshi UESUGI, Hiroaki IKEGAMI
  • Publication number: 20140334918
    Abstract: Three or more attachment pins are arranged on a right lateral surface of a nozzle ring at intervals. All the attachment pins are placed outside support holes in the nozzle ring in radial directions of the nozzle ring. A guide ring is provided across right lateral surfaces of the attachment pins. A first side guide member to support a right lateral surface of a drive ring in away that allows the right lateral surface to be in sliding contact therewith is provided to the right of the guide ring. A second side guide member to support a left lateral surface of the drive ring in a way that allows the left lateral surface to be in sliding contact therewith is provided to the left of the guide ring.
    Type: Application
    Filed: April 25, 2014
    Publication date: November 13, 2014
    Applicant: IHI Corporation
    Inventors: Takafumi UEDA, Akira Iwakami, Naoki Tokue, Masaru Nishioka
  • Patent number: 8876469
    Abstract: A centering device includes a pivoting part configured to pivot around a first axis that extends along an axial direction of a hole formed in the pivoting part; a roller attached to a first end of the pivoting part and configured to rotate; a rod attached to a second end of the pivoting part and configured to move along a second axis; a spring mechanism enclosing a part of the rod and configured to apply a biasing force to the pivoting part; and a rod housing configured to receive an end of the rod and to allow the rod to freely move through the rod housing.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: November 4, 2014
    Assignee: Nuovo Pignone S.p.A.
    Inventors: Franco Sarri, Giuseppe Iurisci
  • Publication number: 20140314540
    Abstract: A synchronization ring for a gas turbine engine according to an exemplary aspect of the present disclosure includes, among other things, a synchronization ring for a variable vane assembly. A plurality of rollers are attached to the synchronization ring for engaging a case on the gas turbine engine.
    Type: Application
    Filed: November 5, 2012
    Publication date: October 23, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: United Technologies Corporation
  • Patent number: 8864450
    Abstract: A gas turbine engine includes a synchronizing ring. A cradle includes an integrally formed anti-rotation feature. The cradle is secured to the synchronizing ring and located relative thereto with the anti-rotation feature. A bumper is slidably supported within the cradle. In one example, a bushing is provided within a hole in the bumper. A fastener is inserted into the hole and a bushing to secure the bumper to the synchronizing ring.
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: October 21, 2014
    Assignee: United Technologies Corporation
    Inventors: Eugene C. Gasmen, Stanley Wiecko
  • 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.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: October 14, 2014
    Assignee: Caterpillar Inc.
    Inventor: Steve O'Hara
  • Patent number: 8827635
    Abstract: 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: Grant
    Filed: November 27, 2010
    Date of Patent: September 9, 2014
    Assignee: Daimler AG
    Inventors: Stephan Krätschmer, Paul Löffler, Markus Müller, Siegfried Sumser
  • Publication number: 20140248138
    Abstract: A variable geometry turbine comprises: a turbine wheel in a housing for rotation about a turbine axis; an annular inlet passage defined between respective radial inlet surfaces of first and second wall members, at least one of said first and second wall members being moveable along the turbine axis to vary the size of the inlet passage; an array of vanes extending across the inlet passage, said vanes being connected to said first wall member; a complementary array of vane slots defined by the second wall member, said vane slots configured to receive said vanes to accommodate relative movement between the first and second wall members; the second wall member comprising at least two axially adjacent co-axial plates, a first plate defining a first array of openings which overlie a second array of openings defined by a second plate so as to define said array of vane slots, said first plate being fixed to said second plate.
    Type: Application
    Filed: April 15, 2014
    Publication date: September 4, 2014
    Applicant: Cummins Turbo Technologies Limited
    Inventors: Tom J. Roberts, Robert L. Holroyd
  • Publication number: 20140248135
    Abstract: Multiple guide claws are formed integrally on a right side surface of a first nozzle ring of a variable nozzle unit and radially at intervals in a circumferential direction. Each guide claw has a guide groove with a U-shaped cross section, which is formed by lathe turning. A projecting portion is formed at an inner edge portion on the right side surface of the first nozzle ring. The projecting portion is formed on base portions of the multiple guide claws.
    Type: Application
    Filed: February 12, 2014
    Publication date: September 4, 2014
    Applicant: IHI Corporation
    Inventors: Tomohiro INOUE, Takao ASAKAWA, Kenichi SEGAWA
  • Publication number: 20140248137
    Abstract: A variable geometry system turbocharger includes a variable nozzle unit, which is disposed in a turbine housing by being sandwiched between the turbine housing and a bearing housing, and which adjusts a passage area for the exhaust gas to be supplied to a turbine impeller. The bearing housing includes a container recessed portion which contains a link mechanism of the variable nozzle unit.
    Type: Application
    Filed: February 24, 2014
    Publication date: September 4, 2014
    Applicant: IHI Corporation
    Inventors: Tomohiro INOUE, Takao ASAKAWA, Kenichi SEGAWA
  • Patent number: 8820072
    Abstract: A diffuser plate for a centrifugal compressor includes an inner edge disposed at an inner diameter about a central axis; an outer edge disposed at an outer diameter, the outer edge displaced an axial distance from the inner edge; a deformable section that includes a substantially S-shaped cross-section, the deformable section disposed between the inner edge and the outer edge; and a spring constant for forced axial displacement of the outer edge with respect to the inner edge, the spring constant characterized, at least in part, by the deformable section.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: September 2, 2014
    Assignee: Honeywell International Inc.
    Inventors: Giorgio Figura, Parikshit I Mulani, Poomkuzhimannil Zachariah John, Shajeev Surendran, T. G. Vijayan
  • Publication number: 20140237987
    Abstract: A variable geometry mechanism suitable for use in a gas turbine engine is disclosed in which movable vane segments which are coupled to a rotatable ring, or rings, are used to change an aerodynamic property of a working fluid flowing through the gas turbine engine. The movable vane segments can be rotated through the ring, or rings, between a first position associated with the first vane and a second position associated with a second vane to place the movable vane segments in proximity to one or the other of the first and second vanes of the gas turbine engine. The movable vane segments can be used to alter, among other things, camber, exit flow area, and can be used to influence and/or accommodate such properties as incidence angle, and swirl angle.
    Type: Application
    Filed: November 26, 2013
    Publication date: August 28, 2014
    Inventors: Matthew J. Bloxham, Craig E. Heathco, Adam D. Ford, Robert T. Duge, Thomas I. Gorman
  • Publication number: 20140234085
    Abstract: A variable area vane arrangement includes a stator vane, a bushing and a vane platform with an aperture. The stator vane rotates about an axis, and includes a shaft that extends along the axis into the aperture. The bushing is connected to the shaft, and is arranged within the aperture between the vane platform and the shaft.
    Type: Application
    Filed: December 16, 2013
    Publication date: August 21, 2014
    Applicant: United Technologies Corporation
    Inventors: David Maliniak, Nathan F. Champion, Kenneth A. Frisk
  • Publication number: 20140234086
    Abstract: A variable area vane arrangement includes a stator vane, a bushing and a vane platform with an aperture. The stator vane rotates about an axis, and includes a shaft that extends along the axis into the aperture. The bushing is connected to the shaft, and is arranged within the aperture between the vane platform and the shaft.
    Type: Application
    Filed: December 16, 2013
    Publication date: August 21, 2014
    Applicant: United Technologies Corporation
    Inventors: David Maliniak, Nathan F. Champion, Kenneth A. Frisk
  • Patent number: 8763393
    Abstract: A turbocharger includes a variable-nozzle assembly that includes an insert having a tubular portion received into a stepped bore of a turbine housing and having a nozzle portion extending radially out from one end of the tubular portion, and a generally annular nozzle ring axially spaced from the nozzle portion and an array of vanes rotatably mounted to the nozzle ring. Sealing of the interface between the tubular portion of the insert and the turbine housing is provided by a sealing ring formed as a generally annular body having a U- or V-shaped cross-section oriented such that an open side of the U- or V-shaped cross-section faces in a radial direction. The U- or V-shaped cross-section defines two opposing legs, one of the legs being engaged against an end face of the tubular portion of the insert and the other leg being engaged against an upstream-facing step surface of the turbine housing bore.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: July 1, 2014
    Assignee: Honeywell International Inc.
    Inventors: Emmanuel Severin, Pierre Barthelet, Lionel Toussaint, Olivier Millotte
  • Publication number: 20140154057
    Abstract: The present invention provides a Francis turbine or any other machine built according to the Francis principle. The machine includes a blade wheel that has multiple blades, with at least one of the blades being adjustable. A spiral housing encloses the blade wheel. A traverse ring with multiple traverses has a portion with larger traverses that extends over a portion of a circumference of the blade wheel and starts at a beginning of a spiral. The traverse ring also has a portion with smaller traverses that extends over a further circumference of the blade wheel up to an end of the spiral. An inner blade wheel ring is provided downstream of the traverse ring. Also included is an outer guide blade ring which is disposed upstream of the traverse ring.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: VOITH PATENT GMBH
    Inventors: Thomas Kächele, Martin Giese
  • Patent number: 8734088
    Abstract: A variable stator vane in a gas turbine engine has a journal provided with a circumferential recess. An aperture extends from the recess to a face of the journal directed towards the aerofoil portion of the vane. In operation of the engine, heated air, for example from a downstream compressor stage of the engine is admitted to the recess and flows through the aperture to, for example, the pressure surface of the aerofoil portion. The aerofoil portion is thereby heated, so preventing ice accretion on the vane.
    Type: Grant
    Filed: February 23, 2009
    Date of Patent: May 27, 2014
    Assignee: Rolls-Royce PLC
    Inventors: Gareth Jones, Clive Lockwood, Adam Bagnall
  • Publication number: 20140133970
    Abstract: A variable-vane assembly includes a generally annular nozzle ring and an array of vanes rotatably mounted to the nozzle ring and connected to a rotatable actuator ring, and an insert having a tubular portion structured and arranged to be sealingly received into a bore of a turbine housing and having a nozzle portion extending generally radially out from one end of the tubular portion, the nozzle portion being axially spaced from the nozzle ring such that the vanes extend between the nozzle ring and the nozzle portion. A ring-shaped wire cage is disposed radially outwardly of the vanes and has one axial end rigidly affixed to the nozzle ring and an opposite axial end rigidly affixed to the nozzle portion so as to fix a spacing between the nozzle ring and the nozzle portion in an axial direction of the variable-vane assembly.
    Type: Application
    Filed: November 15, 2012
    Publication date: May 15, 2014
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventor: Chris Groves
  • Publication number: 20140127004
    Abstract: A charging device for an exhaust gas turbocharger of an internal combustion engine may include at least one variable turbine and compressor geometry and an adjusting device for adjusting the at least one variable turbine and compressor geometry. The adjusting device may include a minimum set limit, which defines a minimum set flow of the at least one variable turbine and compressor geometry for an exhaust gas driving the charging device, and a maximum set limit, which defines a maximum set flow of the at least one variable turbine and compressor geometry for the exhaust gas driving the charging device. The adjusting device may be designed such that at least one minimum set limit of the adjusting device and the maximum set limit of the adjusting dive are variably adjustable and readjustable.
    Type: Application
    Filed: March 2, 2012
    Publication date: May 8, 2014
    Applicant: Bosch Mahle Turbo Systems GmbH & Co. KG
    Inventors: Jochen Schaeflein, Dirk Naunheim
  • Publication number: 20140119897
    Abstract: The invention provides hydroturbine guide vanes and a hydroturbine which are capable of achieving high efficiency in a Francis turbine having a low flow rate at the highest efficiency point according to the specifications thereof and, in addition, hardly present a strength problem when regulating the flow rate. The guide vanes includes a plurality of fixed guide vanes having a long chord length and a plurality of movable guide vanes having a short chord length arranged between the fixed guide vanes, and a flow rate regulation including a fully-closed state is performed by rotating the movable guide vanes having the short chord length.
    Type: Application
    Filed: October 24, 2013
    Publication date: May 1, 2014
    Applicant: Hitachi, Ltd.
    Inventor: Takanori ISHII
  • Publication number: 20140099191
    Abstract: In a turbine for exhaust gas turbocharger of a combustion engine with a turbine casing forming an installation space in which a turbine wheel is arranged so as to be rotatable about an axis of rotation and into which exhaust gas of the combustion engine may be supplied via at least one flow duct in which a guide vane structure is arranged, the guide vane structure includes vanes, which are pivotably supported relative to the turbine casing and form an axial inlet nozzle structure adjacent a wall portion of the turbine which extends along the guide vane structure, the wall portion comprising at least a first guide wall area which overlaps the guide vane structure, and which is set back relative to a second guide wall area in which the vanes are pivotably supported and which adjoins the first wall area.
    Type: Application
    Filed: December 14, 2013
    Publication date: April 10, 2014
    Applicant: IHI CHARGING SYSTEMS INTERNATIONAL GMBH
    Inventor: Thorben KOTZBACHER
  • Patent number: 8667773
    Abstract: A turbomachine comprises a flow duct with coaxially arranged radially inner and outer endwalls, first and second sets of axially spaced rotor stages arranged between the inner and outer endwalls, and a plurality of variable endwall segments arranged along the inner endwall. The first set of rotor stages rotates in a first direction, and the second set rotates in a second direction. The first and second sets alternate in axial series along the flow duct, such that axially adjacent rotor stages rotate in different directions. The variable endwall segments are radially positionable, in order to regulate loading on the first and second sets of rotor stages by changing a cross-sectional flow area between the inner and outer endwalls.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: March 11, 2014
    Assignee: United Technologies Corporation
    Inventor: Peter D. Silkowski
  • Publication number: 20140064912
    Abstract: Embodiments of the present application include a variable stator vanes control mechanism for a gas turbine engine. The control mechanism may include a moveable actuation rod in operative communication with a gear ring such that movement of the actuation rod drives the gear ring. The control mechanism may also include a first plurality of variable stator vanes disposed on a first side of the gear ring, the first plurality of variable stator vanes comprising gear stems in operative communication with the gear ring. Moreover, the control mechanism may include a second plurality of variable stator vanes disposed on a second side of the gear ring, the second plurality of variable stator vanes comprising gear stems in operative communication with the gear ring.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 6, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jayakrishna Velampati, Dnyaneshwar D, Sasi Kumar Tippabhotla
  • Publication number: 20140044518
    Abstract: A continuous-flow machine, especially an axial compressor, having at least one guide vane ring that includes at least one row of adjustable guide vanes, whereby each guide vane is tapered relative to its vane body in the direction of its longitudinal axis as seen in a side view of the guide vane. In order to increase the stability of the flow in the continuous-flow machine, each row of guide vanes comprises first guide vanes and second guide vanes, whereby, as seen in a combined side view of a first guide vane and of a second guide vane, each first guide vane is tapered along its vane body in the lengthwise direction, and each second guide vane is tapered in the opposite direction.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 13, 2014
    Inventor: Roland Wunderer
  • Patent number: 8616836
    Abstract: A system, in certain embodiments, includes a plurality of detachable, three-dimensional diffuser vanes attached to a diffuser plate of a centrifugal compressor. In certain embodiments, the detachable, three-dimensional diffuser vanes may be attached to the diffuser plate using threaded fasteners. In addition, dowel pins may be used to align the detachable, three-dimensional diffuser vanes with respect to the diffuser plate. However, in other embodiments, the detachable, three-dimensional diffuser vanes may include a tab configured to fit securely within a groove in the diffuser plate. In addition, the tabs of the detachable, three-dimensional diffuser vanes may include indentions that mate with extensions extending from the diffuser plate, wherein the tabs may slide into slots between the extensions and the grooves of the diffuser plate.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: December 31, 2013
    Assignee: Cameron International Corporation
    Inventors: Noel Blair, Charles F. Herr, David N. O'Neill
  • Patent number: 8608434
    Abstract: A variable geometry turbine comprises: a turbine wheel mounted within a housing assembly for rotation about a turbine axis, the housing assembly defining a radial gas flow inlet passage; an annular wall member defining one wall of the inlet passage and which is displaceable in a direction substantially parallel to the turbine axis to control gas flow through the inlet passage; and a linkage mechanism comprising at least one actuating member operably connected to the annular wall member to control displacement of the wall member. The actuating member extends in a direction substantially parallel to the turbine axis through an aperture defined by a retaining member such that a first bearing surface defined by the actuating member extending transverse to the turbine axis is contacted by a surface of the retaining member so as to connect the actuating member to the annular wall member.
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: December 17, 2013
    Assignee: Cummins Turbo Technologies Limited
    Inventors: Stephen Garrett, John Parker
  • Patent number: 8601812
    Abstract: A variable geometry turbine comprising a turbine wheel supported in a housing for rotation about a turbine axis with an annular inlet passageway defined between a radial face of a nozzle ring and a facing wall of the housing. The nozzle ring is movable along the turbine axis to vary the width of the inlet passageway and of vanes that are received in corresponding slots in the facing wall. Each vane major surface such that at a predetermined axial position of the nozzle ring relative to the facing wall the recess is in axial alignment with the slot and affords an exhaust gas leakage path through the inlet passageway. The recess is configured to reduce the efficiency of the turbine at small inlet gaps appropriate to engine braking or exhaust gas heating modes.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: December 10, 2013
    Assignee: Cummins Turbo Technologies Limited
    Inventor: John Frederick Parker
  • Patent number: 8591179
    Abstract: Axial-flow compressor including, within a compressor casing (4), at least one rotor (2) of rotor blades (3) connected to a drive shaft (1) and a stator (5) held on the casing inner wall and, associated to the rotor gap (6) between the blade tips and the casing inner wall, a flow pulse generator (7) for stabilizing the rotor gap flow, characterized in that the flow pulse generator (7) includes pulse channels (7a) arranged on the inner wall of the casing and extending upstream of the rotor (2) and tapering in flow direction to accelerate the wall-near flow (9), with the shape and size of the pulse channels (7a) being determined by circumferentially spacedly disposed, successive separators (7b) attached without gap on the compressor casing inner wall. The flow pulse generator (7) so designed, which is easily manufacturable, improves the stabilization of the rotor gap (6) flow, extends the operating range of the compressor and increases the surge limit.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: November 26, 2013
    Assignee: Rolls-Royce Deutschland Ltd & Co KG
    Inventor: Carsten Clemen
  • Publication number: 20130294895
    Abstract: A variable geometry turbine includes a fluid space formed by a nozzle mount and a nozzle plate; and a plurality of nozzle vanes arranged in the fluid space at certain intervals in the circumferential direction so as to partition the fluid space. The nozzle vanes are supported by shafts on the nozzle mount, in such a manner as to be capable of turning. The flow rate of the discharged fluid can be adjusted by opening or closing the cross-sectional area of a flow path formed by the adjacent nozzle vanes. The nozzle plate is provided with plate projections protruding toward the nozzle vanes further than, at least, end surfaces of the nozzle vanes, so as to cover the spaces between leading edges of the nozzle vanes and trailing edges of the nozzle vanes adjacent thereto, when the nozzle vanes are at a closed position.
    Type: Application
    Filed: August 31, 2011
    Publication date: November 7, 2013
    Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.
    Inventors: Takao Yokoyama, Hiroshi Suzuki, Motoki Ebisu, Toyotaka Yoshida
  • Publication number: 20130236295
    Abstract: An inlet guide vane actuation apparatus is provided. The inlet guide vane actuation apparatus comprises an actuation ring with a first connector for connecting an actuator rod, wherein the first connector positions the actuator rod over the rotational axial center of the actuation ring, a plurality of crank rods with a first end connected respectively to a plurality of second connectors located on the rotational axial center of the actuation ring; and a plurality of cranks with each having a third connector connected respectively to a second end of the plurality of crank rods and respectively to vanes associated with a nozzle, wherein the third connector located on the rotational axial center of the actuation ring.
    Type: Application
    Filed: August 31, 2012
    Publication date: September 12, 2013
    Inventors: Giacomo Landi, Antonio Asti, Paolo Del Turco
  • Patent number: 8529188
    Abstract: This disclosure relates to a gas turbine engine including a core engine that drives a fan. A fan nacelle surrounds the fan and provides an inner surface facing the fan. The fan nacelle includes an inlet lip adjoining the inner surface. A ring is arranged at the inner surface and is axially upstream from the fan. The ring includes a deployed position in which the ring is spaced radially inwardly from the inner surface to provide a gap therebetween through which air flows. The ring also includes a stowed position in which the ring is arranged radially inwardly from the deployed position and proximate to the inner surface. The ring is commanded to the deployed position in response to detecting a first condition, which corresponds to a flow separation condition at the fan nacelle inlet. The ring may be stowed during cruise conditions, for example.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: September 10, 2013
    Assignee: United Technologies Corporation
    Inventor: Michael Winter