Patents Examined by Edward Bushard
  • Patent number: 11401858
    Abstract: An exhaust turbocharger includes an exhaust control device provided with an exhaust flap for adjusting an exhaust gas flow flowing through a turbine stage of the exhaust turbocharger during the operation thereof, a control gear coupled to the exhaust flap, and a servomotor via which the exhaust flap can be moved in a regulated and/or controlled manner by operation of the control gear at least between a closing position, in which the exhaust flap closes an exhaust gas opening in a turbocharger housing of the turbocharger, through which exhaust gas flows during the operation of the exhaust turbocharger, and at least one other position in which the exhaust flap allows exhaust gas to flow through the exhaust gas opening. The control gear is a self-locking gear via which the exhaust flap can be prestressed in the closing position thereof in relation to the turbocharger housing.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: August 2, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Harald Daxberger, Leopold Eisterlehner, Andreas Kerschbaummayr
  • Patent number: 11384774
    Abstract: A rotor includes: a hub; and a plurality of blades disposed on the hub. Each of the plurality of blades includes a suction surface, a pressure surface, a leading edge, a trailing edge, a tip-side edge, and a hub-side edge. In a cross-section of each blade at a given chord position between the leading edge and the trailing edge, an angle of at least one of the suction surface or the pressure surface with respect to a blade height direction of the blade increases in a direction from the hub-side edge to the tip-side edge over a region from the hub-side edge to the tip-side edge, in at least a range from the leading edge to a chord position away from the leading edge toward the trailing edge.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: July 12, 2022
    Inventors: Yoshihiro Hayashi, Yutaka Fujita, Nobuhito Oka, Koichi Takahashi, Hayato Nishi
  • Patent number: 11352945
    Abstract: A crank and linkage assembly for a component of a turbocharger includes a linkage having an end defining a through bore, an inner surface of the through bore defining a linkage groove therein. The crank has a pin whose outer surface defines a pin groove. A generally polygonal retaining ring of elastically deformable wire is installed partially in the linkage groove and partially in the pin groove to retain the linkage on the pin while allowing the linkage to rotate about the pin axis. Vertices of the retaining ring are in the linkage groove, while sides of the retaining ring are in the pin groove. Once the retaining ring is pre-installed in the linkage groove, the assembly can be assembled by a push-to-connect process.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: June 7, 2022
    Assignee: Garrett Transportation I Inc.
    Inventors: Huan Wang, Yunbin Gong, Xiaolei Jin, Jinjiang Shao
  • Patent number: 11300042
    Abstract: A valve device for a turbine of an exhaust gas turbocharger includes a valve element for at least partial fluidic shutting of a bypass line via which a turbine wheel of the turbine can be bypassed by exhaust gas. The valve device also has an actuating arm which is coupled in an articulated manner to the valve element and via which the valve element can be pivoted and has at least one spring element via which the valve element is supported on the actuating arm. The valve element has at least one uneven supporting surface via which the spring element is supported on the valve element.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: April 12, 2022
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventor: Oliver Grabherr
  • Patent number: 11286844
    Abstract: The invention relates to a valve assembly (10) for a charging device, in particular for a wastegate of an exhaust gas turbocharger, comprising a spindle (100), a lever arm (110) coupled to the spindle (100), and a valve unit (200). The lever arm (110) has a connecting element (112), designed as at least partially spherical, and the valve unit (200) has an accommodation region (212) with at least one first conical accommodation surface (214) in which the connecting element (112) is arranged.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: March 29, 2022
    Assignee: Borg Warner Inc.
    Inventors: Jakob Penth, Christoph Mueller, Christian Cossmann, Alexander Umlauff, Werner Rott, Florian Rapp, Georg Scholz, Patrick Weber
  • Patent number: 11274597
    Abstract: The high pressure compressor wheel of a two stage turbocharger assembly is cooled by charge air bled from the charge air flowpath downstream of the aftercooler. A wastegate may be arranged across the high pressure stage and operated by an actuator which in turn is operable by the static or dynamic pressure of the charge air in the cooling flowpath. The cooling airflow may be blocked to open the wastegate and released or resumed to close the wastegate so that cooling air is supplied only while the high pressure compressor wheel is under load.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: March 15, 2022
    Assignee: Perkins Engines Company Limited
    Inventors: David Wilkinson, Prabhu Ramasamy
  • Patent number: 11261779
    Abstract: A turbine arrangement for controlling a gas flow, in particular for a fuel cell (2) or for an internal combustion engine (3), and a charging device having such a turbine arrangement, is described, in which the gas flow supplied by an inlet (10) can be controlled by an adjustable slide bushing (48) covering an entry opening (43) to form a turbine wheel (38) arranged in a turbine housing (30) between a closed position and an open position, such that, in the closed position, the gas flow is throttled and, in the at least partially open position, a controllable proportion of the gas flow drives the turbine wheel (38) arranged on a shaft (22) of an electric engine (18) functioning as a generator for recuperating energy, wherein the slide bushing (48) releases a wall opening (64) in the turbine housing (30) above a predetermined value of the gas flow, such that a bypass channel emerges in order to guide gas flow past the turbine wheel (38) directly to an outlet opening (24).
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: March 1, 2022
    Assignee: BorgWarner Inc.
    Inventor: Dietmar Metz
  • Patent number: 11248522
    Abstract: The invention relates to a device for controlling the swirl of a fluid (2) flowing in a pipeline (1). The invention was based on the object of creating a device with which the adaptation of the swirl (2B) of a fluid (2) flowing in a pipeline (1), even in the case of constantly changing initial swirl (2B), to the desired flow conditions in the pipeline (1) is possible. Said object is achieved in that a swirl measuring device (4) and a swirl control device (6) are provided at predetermined positions of the pipeline (1), and the device has an evaluation and encoder unit (5), wherein, in the presence of differences between the measured actual swirl (2B) and the desired swirl, a corrective value can be determined by means of the evaluation and encoder unit (5), and the swirl control device (6) corresponds with the evaluation and encoder unit (5) and, by means of the swirl control device (6), the present swirl (2B) can be adapted to the predetermined desired swirl in accordance with the determined corrective value.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: February 15, 2022
    Inventors: Dennis Ilse, Harald Kreidner, Holger Fassl
  • Patent number: 11242796
    Abstract: A valve for blocking and releasing a flow path, having an electromagnetic actuator unit, a pin axially movable by the electromagnetic actuator unit, a closure element connected to the pin. The closure element is designed to block and release a flow path and has a first axial end arranged remotely from the flow path and is connected to the pin, and a second axial end arranged in the flow path, and a housing which receives at least the pin and the first axial end of the closure element. At least in a region of its first axial end, the closure element has a radially circumferential seal with an outwardly protruding seal lip. The seal lip lies sealingly against a region of the housing in a closed state of the valve, and the seal lip has at least one radially circumferential bead.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: February 8, 2022
    Assignee: Vitesco Technologies GmbH
    Inventor: Rosario Bonanno
  • Patent number: 11242809
    Abstract: In an opposed-piston engine which includes a catalytic aftertreatment device in its exhaust system an exhaust gas condition indicating a catalyst temperature of the aftertreatment device is monitored. When the catalyst temperature is near or below a light-off temperature, a catalyst light-off procedure is executed to elevate the temperature of the catalyst.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: February 8, 2022
    Assignee: Achates Power, Inc.
    Inventors: Ahmad Ghazi, Daniel M. Schum, Fabien G. Redon, Samrat M. Patil
  • Patent number: 11236758
    Abstract: An impeller includes a disk that has a disk shape centered on an axis, a cover that is disposed to be separated from the disk in an axial direction in which the axis extends, a plurality of blades that connect the disk and the cover to each other and are disposed at intervals in a circumferential direction around the axis, and a connection member that is disposed to be separated from the plurality of blades in the axial direction and connects the disk and the cover to each other. A plurality of the connection members are disposed at intervals in the circumferential direction at positions near an inlet of an impeller flow path with respect to front edges of the blades positioned at positions near the inlet, the impeller flow path being formed between the disk and the cover.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: February 1, 2022
    Inventors: Hideki Nagao, Akihiro Nakaniwa
  • Patent number: 11236667
    Abstract: A flap configuration opens and closes a wastegate channel in a turbine housing of a turbocharger. The flap configuration has a lever element having a through-bore in which a cylindrical bushing is arranged. A flap having a pin is arranged on the lever element such that the pin passes through the bushing. A cover disk is arranged on an opposite side from the flap and has an opening through which the pin of the flap passes. The flap is riveted to the lever element by the pin.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: February 1, 2022
    Assignee: Vitesco Technologies GmbH
    Inventor: Marc Hiller
  • Patent number: 11230970
    Abstract: An exhaust system includes an exhaust manifold structured to be fluidly coupled to an engine. A turbocharger including a turbine housing is fluidly coupled to the exhaust manifold. An exhaust pulse converter includes a first portion integral to the exhaust manifold and a second portion integral to the turbine housing. The exhaust pulse converter is structured to reduce engine pumping losses by reducing cross-talk of exhaust blowdown events from the engine.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: January 25, 2022
    Assignee: CUMMINS INC.
    Inventors: Alexander T. Woods, Nikhil Jayant Ajotikar, Kristopher Ray Young
  • Patent number: 11230966
    Abstract: A compressor arrangement for an internal combustion engine, including a compressor which is located in a compressor housing and has a low pressure side and a high pressure side, and includes a vacuum supply device which has: a propellant channel which has a nozzle and is fluidically connected on one side via a propellant inlet connection to the high pressure side of the compressor and on the other side via a propellant outlet connection to the low pressure side of the compressor; and a vacuum channel opening into the propellant channel fluidically between the propellant inlet connection and the propellant outlet connection.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: January 25, 2022
    Assignee: AUDI AG
    Inventors: Maximilian Köhnlein, Robert Solbeck
  • Patent number: 11220966
    Abstract: A turbocharger wastegate controller 10 includes a servo motor 11 having an electrical supply input and a motor output shaft 12 configured to be attached to a wastegate valve 22. Rotation of the motor output shaft 12 in a first direction moves the wastegate valve 22 toward a fully open butterfly valve position and rotation in the opposite direction toward a fully closed actuator position. In the controller 10, the electrical supply input to the servo motor 11 is controlled to modify the wastegate valve 22 position to control boost pressure of a turbocharger.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: January 11, 2022
    Inventor: Christopher Doumbos
  • Patent number: 11221016
    Abstract: A centrifugal compressor includes a rotary shaft rotating around an axis, and a plurality of impellers fixed to and integrally rotating with the rotary shaft so that a gas flowing from an upstream side in an axial direction is compressed by being pumped outward in a radial direction. At least one of the plurality of impellers has a design point of a flow rate coefficient ? which is 0.1 to 0.2, and a machine Mach number M0 of 1.1 to 1.3 and is configured to be operable between a flow rate coefficient minimum value ?min and a flow rate coefficient maximum value ?max. An operation range expressed by the following Equation (a) is 30% or higher, (Operation Range)={(Flow Rate Coefficient Maximum Value ?max)?(Flow Rate Coefficient Minimum Value ?min)}/(Flow Rate Coefficient Maximum Value ?max)?? (a).
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: January 11, 2022
    Inventor: Hiroaki Oka
  • Patent number: 11208915
    Abstract: A driving device includes: a shaft; and a cylindrical bush having an insertion hole into which the shaft can be inserted. The insertion hole includes an opening portion having an inner diameter decreasing from a first end surface toward a second end surface of the bush, and a small-diameter hole portion extending from an end of the opening portion to the second end surface. The shaft includes a shaft portion having an outer diameter smaller than an inner diameter of the small-diameter hole portion, and an abutment portion having an outer diameter greater than the inner diameter of the small-diameter hole portion. The bush has a sealing surface defining the opening portion. The abutment portion of the shaft abuts on the sealing surface of the bush in an axial direction of the insertion hole to seal a gap formed between the shaft and the bush inside the insertion hole.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: December 28, 2021
    Inventors: Tatsuya Ishizaki, Yuta Ishii, Takaya Futae, Noriyuki Hayashi
  • Patent number: 11203970
    Abstract: A wastegate assembly for controlling flow of exhaust gas includes a valve element having a valve body and a valve shaft. The wastegate assembly further includes a spindle having a head defining an opening and including a flat surface. The wastegate assembly further includes a washer coupled to the valve shaft and spaced from the spindle for securing the spindle to the valve shaft. The washer defines a bottom washer surface facing the flat surface of the spindle head, with the bottom washer surface including a flat region and a beveled region. A biasing member is disposed between the flat surface of the spindle and the flat and beveled regions of the washer. The beveled region extends oblique relative to the flat region for minimizing contact between the washer and the biasing member beyond the flat region.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: December 21, 2021
    Assignee: BorgWarner Inc.
    Inventors: Dominic William DePaoli, Aaron Date, Michael Daniel Cola, Georg Scholz, Marc Werner, Christian Cossmann, Jakob Penth, Christoph Müller, Ravi Patil
  • Patent number: 11199127
    Abstract: A reciprocating engine system includes a turbocharger system including a mechanically driven compressor, an electrically driven compressor, and a compressor bypass valve. A control system is programmed for generating control signals for: under nominal full load operating conditions, minimizing gas flow through the compressor bypass valve and compressing gas within the electrically driven compressor to maintain a speed set point or a full load power set point of the reciprocating engine system, under off nominal full load operating conditions wherein an efficiency of the mechanically driven compressor is reduced, compressing gas within the electrically driven compressor to compensate for the reduced efficiency of the mechanically driven compressor and to maintain the speed set point or the full load power set point of the reciprocating engine system, and under partial load operating conditions, partially diverting the gas flow through the compressor bypass valve in response to the reduced load.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: December 14, 2021
    Inventors: Jassin Marcel Fritz, Hang Lu
  • Patent number: 11174822
    Abstract: A compressor bypass reintroduction system includes a compressor intake manifold and a bypass conduit. The compressor intake manifold defines a fluid plenum. The compressor intake manifold is engageable with a compressor. The bypass conduit extends into the fluid plenum and includes an ejector line. The ejector line is configured to be substantially collinear with the compressor and to discharge flow toward the compressor. In some embodiments, an outlet of the ejector is disposed proximate to an outlet of the fluid plenum that discharges flow into the compressor.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: November 16, 2021
    Assignee: Cummins Power Generation Inc.
    Inventors: Jeremy A. Lackey, Alan C. Anderson, Joshua Bradley Bettis, Steven L. Leffler, Dilip Ramachandran, John A. Rennekamp, Axel O. Zur Loye, Andrew Guy Kitchen, George Martin Tolhurst