Patents Issued in February 6, 2020
  • Publication number: 20200040739
    Abstract: A shrouded impeller and a method of additively manufacturing the same are provided. In one example aspect, the shrouded impeller includes a hub and a shroud spaced from the hub. The shrouded impeller also includes a plurality of vanes extending between and connecting the hub and the shroud. The vanes are spaced circumferentially apart from one another. Flow passages are defined between adjacent vanes. In some implementations, the shrouded impeller is additively manufactured. During printing, one or more support structures are formed within and fill a portion of one or more of the flow passages to support the unsupported walls of the shrouded impeller, e.g., the shroud. Further, the support structures are removable from the shrouded impeller, e.g., after the shrouded impeller has been printed.
    Type: Application
    Filed: August 3, 2018
    Publication date: February 6, 2020
    Inventors: Michael Robert Notarnicola, Christopher Michael Bryant, Stephen Joseph Waymeyer
  • Publication number: 20200040740
    Abstract: The invention concerns an inter-blade profile (14) for a turbine runner blade, said inter-blade profile (14) comprising a profile (16), and a plug (18), forming a basis of the profile (16) and intended for being inserted into a corresponding hole (21) made in a blade.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 6, 2020
    Inventors: Benoît Papillon, Carl-Anthony Beaubien, David Allan Scott, Laurent Bornard, Louis Mathieu
  • Publication number: 20200040741
    Abstract: Aviation turbine blade (10) extending in the radial direction from a blade root (14) as far as an upper partition wall (26), said blade (10) comprising a plurality of inner cavities (C1-C10) defining at least one cooling circuit, each of said inner cavities (C1-C10) being defined by walls among inner walls (40, 42), a lower surface wall (22), an upper surface wall (24), the blade root (14) and the upper partition wall (26), said blade (10) being characterized in that it comprises at least one reinforcing beam (50, 60) disposed inside one of the inner cavities (C3, C8), and connecting the blade root (14) to the upper partition wall (26), said reinforcing beam (50, 60) is not connected to the inner walls (40, 42), the lower surface wall (22) and the upper surface wall (24).
    Type: Application
    Filed: April 10, 2018
    Publication date: February 6, 2020
    Applicant: SAFRAN
    Inventors: Sylvain PAQUIN, Romain Pierre CARIOU, Thomas Michel FLAMME, Adrien Bernard Vincent ROLLINGER
  • Publication number: 20200040742
    Abstract: A composite vane includes both a vane body extending in a longitudinal direction between an inner end and an outer end and also at least one fastener base connected to the inner end or to the outer end of the vane body. The vane includes metal reinforcement associated with an organic matrix. The metal reinforcement defines integrally as a single part both a longitudinal core extending between the inner and outer ends of the vane body and also the fastener base, the longitudinal core having the organic matrix overmolded thereon, the organic matrix defining the outside shape of the vane.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 6, 2020
    Inventors: Didier FROMONTEIL, Alexandre DALLOZ
  • Publication number: 20200040743
    Abstract: A component for a gas turbine engine. The component includes a body. The body has an exterior surface abutting a flowpath for the flow of a hot combustion gas through the gas turbine engine. Further, the body defines a cooling passageway within the body to supply cool air to the component. The component includes a leading face and a trailing face defining a trench therebetween on the exterior surface. The body defines a plurality of cooling holes extending between the cooling passageway and a plurality of outlets defined in the trench such that the trench is fluidly coupled to the cooling passageway. Additionally, the leading face and trailing face are each tangent to at least one of the plurality of outlets. The trench directs the cool air along a contour of the component.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 6, 2020
    Inventors: Daniel Endecott Osgood, Zachary Daniel Webster, Gregory Terrence Garay, Kevin Robert Feldmann
  • Publication number: 20200040744
    Abstract: The invention concerns a removable cover plate (160) for an inter-blade profile (14, 14a) of a turbine runner blade, said cover plate comprising at least one aeration passage (30) and securing means (161) for securing said removable cover plate onto said inter-blade profile (14).
    Type: Application
    Filed: July 31, 2019
    Publication date: February 6, 2020
    Inventors: Laurent Bornard, David Allan Scott, Carl-Anthony Beaubien, Tan Seyla, Bernard Di Maria
  • Publication number: 20200040745
    Abstract: Cladding material is applied by laser to a net-shape. A method of cladding a host component includes installing the component in a fixture. A shroud component is located against the host component adjacent a select location for the cladding. Cladding is applied to the host component to the select location and adjacent to shroud component so that the shroud component defines an edge of the cladding as applied. The edge of the cladding as defined by the shroud component defines a desired cladding profile requiring no/approximately no post-cladding processing to remove over-cladded material.
    Type: Application
    Filed: August 1, 2018
    Publication date: February 6, 2020
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: Brent Ludwig, Don Mittendorf, David R. Waldman, Malak Fouad Malak
  • Publication number: 20200040746
    Abstract: An environmental barrier coating, comprising an environmental barrier coating applied to a substrate containing silicon; the environmental barrier coating comprising an oxide matrix surrounding a fiber-reinforcement structure and a self-healing phase interspersed throughout the oxide matrix.
    Type: Application
    Filed: August 3, 2018
    Publication date: February 6, 2020
    Applicant: United Technologies Corporation
    Inventors: Richard Wesley Jackson, John E. Holowczak, Xia Tang, James T. Beals
  • Publication number: 20200040747
    Abstract: In a variable stator vane structure of an axial compressor, each stator vane (70) is provided with a shaft (72) rotatably supported by the cylindrical outer peripheral portion (14B) around an axial center line (T) of the shaft, and a vane member (74) supported by the shaft, and the axial center line of the shaft is tilted with respect to a radial line (R) extending radially from a center of the annular fluid passage (34) in a circumferential direction and/or in an axial direction of the annular fluid passage.
    Type: Application
    Filed: March 18, 2019
    Publication date: February 6, 2020
    Inventor: Yuuri Tsukioka
  • Publication number: 20200040748
    Abstract: The invention relates to an assembly comprising a turbomachine casing (7) and a nozzle made of ceramic matrix composite material having a blade (21), the frontside and backside surfaces of which delimit an internal cavity, and which is connected at its radially external end by a connecting part (31) of the nozzle to the casing (7), said connecting part (31) extending substantially radially outwards, the blade (21) and said connecting part (31) being formed in one piece, said assembly being characterized in that the connecting part (31) is fastened to a first radial wall (51) integral with the casing (7) by fastening means (53).
    Type: Application
    Filed: July 31, 2019
    Publication date: February 6, 2020
    Inventors: Matthieu Arnaud GIMAT, Lucien Henri Jacques QUENNEHEN, Gilles Gérard Claude LEPRETRE, Nicolas Paul TABLEAU
  • Publication number: 20200040749
    Abstract: Fairing assemblies and methods for assembling gas turbine engine fairing assemblies are provided. For example, a fairing assembly comprises a plurality of fairings, an annular inner band defining a plurality of inner pockets, and an annular outer band defining a plurality of outer pockets. Each fairing has an inner end radially spaced apart from an outer end. Each inner pocket is shaped complementary to each fairing inner end and has forward and aft ends. Each outer pocket is shaped complementary to each fairing outer end and has forward and aft ends. The inner and outer bands are each a single piece structure. Each fairing inner end is received within one of the plurality of inner pockets, and each fairing outer end is received within one of the plurality of outer pockets. Some embodiments also comprise an inner ring positioned against the inner band to close the inner pockets.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 6, 2020
    Inventors: Mark Anthony Holleran, Matthew Mark Weaver, Darrell Glenn Senile, Nicholas John Bloom
  • Publication number: 20200040750
    Abstract: A seal system for a gas turbine vane includes a first seal layer and an optional second seal layer. Each first seal layer includes multiple seal segments, each of which includes a first leg, a second leg, and an intermediate portion between the first leg and the second leg. Each adjacent pair of seal segments of the first seal is separated by a gap. The seal segments define a substantially complete perimeter of a seal slot in which the first seal is installed. The second seal, which is also segmented, may or may not define the substantially complete perimeter of the seal slot. If present, the second seal segments are circumferentially offset from the first seal segments to block the gaps between the first seal segments. A turbine vane including the present seal system is also disclosed.
    Type: Application
    Filed: July 31, 2018
    Publication date: February 6, 2020
    Applicant: General Electric Company
    Inventors: John Ellington Greene, Neelesh Nandkumar Sarawate
  • Publication number: 20200040751
    Abstract: A gas turbine engine includes a turbine section having a turbine rotor and at least one blade extending outwardly of the turbine rotor. The turbine rotor rotates about an axis of rotation. A blade outer air seal is positioned radially outward of the at least one blade. The blade outer air seal has an axially forward hook and an axially aft hook supported to static structure. An axial seal is attached to static structure forward of the forward hook, and has a sealing portion extending in an aft direction. A sealing surface member is positioned intermediate an aft end of the axial seal and a forward end of the forward hook to provide a sealing surface for sealing between the seal and the blade outer air seal.
    Type: Application
    Filed: July 31, 2018
    Publication date: February 6, 2020
    Inventors: William M. Barker, Thomas E. Clark
  • Publication number: 20200040752
    Abstract: A seal device according to the embodiment includes a seal fin provided between the rotation body and the stationary body and extending in a circumferential direction of the rotation body, and a swirl brake fin provided on the stationary body upstream of the seal fin. The swirl brake fin reduces a circumferential velocity component of the working fluid. The swirl brake fin has a negative pressure surface provided on a side of a rotation direction of the rotation body and a positive pressure surface provided on an opposite side to the negative pressure surface. The positive pressure surface extends in a direction opposite to the rotation direction of the rotation body from radially outward toward radially inward.
    Type: Application
    Filed: August 2, 2019
    Publication date: February 6, 2020
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventor: Tomohiko TSUKUDA
  • Publication number: 20200040753
    Abstract: A turbomachinery sealing apparatus including a first turbomachinery component having a first end face, and a seal extending away from the first end face, the seal being connected to a wall of the component by a tab extending between the wall and the seal.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 6, 2020
    Inventors: Ryan Christopher Jones, Daniel Endecott Osgood, Zachary Daniel Webster, Gregory T. Garay, Tingfan Pang
  • Publication number: 20200040754
    Abstract: A controlled gap radial oil sealing assembly in a gas turbine engine having a centre rotational axis defining an axial direction, the controlled gap radial sealing assembly comprises a seal element located around a cooperating seal runner and sized to define a controlled sealing gap between them, the seal runner having an axial length extending beyond an axial width of the seal element into an oiled region of the engine. A first annular surface radially outwardly spaced from and extending substantially along the axial length of the seal runner, the first annular surface sealingly cooperating with a seal housing of the seal element, and a second annular surface axially extending to overlap at least a portion of the first annular surface, the second annular surface radially outwardly spaced from the first annular surface relative to the center axis.
    Type: Application
    Filed: August 2, 2018
    Publication date: February 6, 2020
    Inventors: Michel LABBE, Stuart HODGSON, Daniel POIRIER
  • Publication number: 20200040755
    Abstract: A gas turbine engine includes a compressor section and a turbine section. The turbine section includes at least one rotor and at least one blade extending radially outwardly from the rotor to a radially outer tip. A blade outer air seal assembly is positioned radially outwardly of the radially outer tip of the blade. The blade outer air seal has forward and aft hooks. The forward and aft hooks are supported on forward and aft seal hooks of an attachment block. The attachment block has a forward case mount hook and an aft case mount hook. The attachment block is supported on a forward case hook and an aft case hook of a static casing within the engine. The forward case mount hook and the aft case mount hook on the attachment block face in a common axial direction. The forward case hook and the aft case hook face in a common axial direction which is opposed to the common axial direction. A method is also disclosed.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 6, 2020
    Inventors: Thomas E. Clark, William M. Barker
  • Publication number: 20200040756
    Abstract: A gas turbine engine includes a compressor section and a turbine section. The turbine section includes at least one rotor and at least one blade extending radially outwardly from the rotor to a radially outer tip. A blade outer air seal assembly is positioned radially outwardly of the radially outer tip of the blade. The blade outer air seal has forward and aft hooks, and the forward and aft hooks are supported on forward and aft seal hooks of an attachment block. The blade outer air seal forward and aft hooks extend at angles relative to an upper surface of a web that is between 20 and 70 degrees. A method is also disclosed.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 6, 2020
    Inventors: Thomas E. Clark, William M. Barker, Daniel J. Whitney
  • Publication number: 20200040757
    Abstract: A gas turbine engine includes a compressor section and a turbine section. The turbine section includes at least one rotor and at least one blade extending radially outwardly from the rotor to a radially outer tip. A blade outer air seal assembly is positioned radially outwardly of the radially outer tip of the blade. The blade outer air seal has forward and aft hooks, and the forward and aft hooks are supported on forward and aft seal hooks of an attachment. The blade outer air seal is formed of a plurality of laminate layered with a central web formed of a plurality of laminate members including an inner reinforcement member. An outer overwrap wraps around the inner reinforcement member. A method is also disclosed.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 6, 2020
    Inventors: William M. Barker, Thomas E. Clark, Daniel J. Whitney
  • Publication number: 20200040758
    Abstract: Disclosed is a Francis turbine, and more particularly a double-flow type volute casing having a structure for changing the direction of flow in a turbine inlet, wherein a partition plate for partitioning a volute defined in the casing into an inner flow channel and an outer flow channel is provided so as to surround a turbine, the ratio in sectional area of the inner flow channel to the outer flow channel in a volute inlet, into which a fluid is introduced, is 4:6, a plurality of flow-rate adjustment holes is formed in the partition plate so as to be arranged at a gradually decreasing interval such that a high-pressure fluid flowing in the outer flow channel is introduced into the inner flow channel and the fluid flowing in the inner flow channel is directed perpendicularly to the turbine blades, in order to minimize the amount of energy that is lost and to reduce imbalanced variation of torque applied to the turbine blades, whereby it is possible to prevent the generation of vibration and to obtain high rota
    Type: Application
    Filed: May 30, 2019
    Publication date: February 6, 2020
    Inventor: Young SON
  • Publication number: 20200040759
    Abstract: A system for operating a turbo machine is generally provided, the system including a variable vane assembly including a first plurality of vanes coupled together by a first unison member and a second plurality of vanes coupled together by a second unison member. An actuation system is coupled to each of the first unison member and the second unison member and a solenoid actuator is coupled to the variable vane assembly and the actuation system.
    Type: Application
    Filed: August 3, 2018
    Publication date: February 6, 2020
    Inventor: Mark Joseph Mielke
  • Publication number: 20200040760
    Abstract: A component for a gas turbine engine is disclosed. In various embodiments, the component includes an airfoil, including therein a first cavity and a second cavity, and an outer spindle extending from the airfoil, the outer spindle including a first channel in fluid communication with the first cavity and a second channel in fluid communication with the second cavity.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 6, 2020
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventor: Corey D. Anderson
  • Publication number: 20200040761
    Abstract: A variable-geometry turbocharger may include an internal ring provided in a turbine housing in a shape enclosing a turbine wheel and having fixed vanes provided in a circumferential direction thereof; and an external ring provided in a shape enclosing the internal ring and having rotary vanes rotatably provided in a circumferential direction thereof, the rotary vanes being paired with the fixed vanes in a state in which the rotary vanes remain in normal contact with the fixed vanes, wherein the internal ring and the external ring are rotated relative to each other by a predetermined angle, and according to the relative rotation, the rotary vanes are rotated and relative positions of the fixed vanes paired with the rotary vanes are changed, which causes a total length of each vane pair including a rotary vane and a fixed vane to be changed such
    Type: Application
    Filed: October 24, 2018
    Publication date: February 6, 2020
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventor: Seok Beom JIN
  • Publication number: 20200040762
    Abstract: An engine heater system for heating a diesel engine of a vehicle. The engine heater system including a gas turbine. A heat exchanger communicatively coupled to an exhaust of the gas turbine. An electric generator including connection members to couple to a battery of the vehicle, and a shaft rotatably attached between the gas turbine and the electric generator. The heat exchanger utilizes the exhaust of the gas turbine to keep the diesel engine of the vehicle within a desired temperature range, and the electric generator charges the battery when the gas turbine rotates the shaft.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 6, 2020
    Inventors: Benjamin J. Boyce, Michael T. Abbott
  • Publication number: 20200040763
    Abstract: A method (200) for washing a turbine engine (104) of a gas turbine engine includes positioning a plurality of spray nozzles (74) of a wash system (10) into or through the plurality of borescope holes (146) defined by the turbine engine. Each of the plurality of spray nozzles are fluidly connected to a respective plurality of wash lines of the wash system. The method also includes providing a pressurized flow of wash liquid through the plurality of wash lines (58), through the plurality of spray nozzles, and into the turbine engine to wash the turbine engine.
    Type: Application
    Filed: October 14, 2016
    Publication date: February 6, 2020
    Inventors: Peng Wang, Hao Hu
  • Publication number: 20200040764
    Abstract: The invention relates to a balancing system of an aircraft turbomachine comprising a first annular row of first mounting ports for mounting balancing members, and a second annular row of second mounting ports for mounting balancing members which is axially offset from the first annular row, the number and angular positions of the first mounting ports being identical to the number and angular positions of the second mounting ports.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 6, 2020
    Inventors: Nadège Pauline Audrey HUGON, Thomas GIRAUDEAU, Jean-Marc Claude PERROLLAZ, Baptiste René Roger BATONNET, Romain Nicolas LAGARDE
  • Publication number: 20200040765
    Abstract: A heat exchanger assembly that in a preferred embodiment comprises: an inlet duct lower wall interfacing with a bypass duct; an outlet duct lower wall interfacing with a bypass duct; a heat exchanger coupled between the inlet duct lower wall and the outlet duct lower wall wherein the heat exchanger is at a compound angle with respect to an inlet duct air flow direction; and a fairing coupled to the top of the heat exchanger wherein the fairing forms the inlet duct upper wall and the outlet duct upper wall.
    Type: Application
    Filed: August 3, 2018
    Publication date: February 6, 2020
    Inventors: PHILIP WALSH, Silviu-Cristian Vaideanu, Christopher Simon Elliott, Benjamin Thomas Matthews, Jeffrey Allen LeHew, Steven William James Henderson
  • Publication number: 20200040766
    Abstract: A gas turbine engine includes a fan rotating with a fan shaft, a compressor and a turbine section. The turbine section includes a fan drive rotor driving the fan through the fan shaft. At least one bearing is between an inner static case and the fan shaft. The inner static case is cantilever mounted to static structure, and has a forward end spaced in a forward direction toward the fan rotor from a cantilever mount. A damping assembly is associated with the inner static case.
    Type: Application
    Filed: August 6, 2018
    Publication date: February 6, 2020
    Inventor: Robert J. Morris
  • Publication number: 20200040767
    Abstract: A magnetic squeeze film damper system comprises a bearing assembly having an outer race with a first outer surface and a first inner surface and a bearing located along the first inner surface. The system further comprises a squeeze film damper housing having a second outer surface and a second inner surface that is contiguous with the first outer surface. A channel having a forward end and an aft end is defined within the housing along the second inner surface, the channel bordered by the first outer surface. The system further includes a first seal gland located along the forward end of the channel and a second seal gland located along the aft end of the channel. Both seal glands comprise a reservoir for holding a magneto-rheological fluid, the reservoir encased in an elastomer. At least one electromagnet is arranged in close proximity to each of the seal glands.
    Type: Application
    Filed: September 25, 2019
    Publication date: February 6, 2020
    Inventors: Andrew D. Copeland, Donald W. Burns, Standford Clemens, Alan B. Cookerly
  • Publication number: 20200040768
    Abstract: A disclosed lubrication system for a turbofan engine includes a pump for driving lubricant through a lubrication circuit, at least one sensor generating a signal indicative of an engine operating condition and at least one valve for controlling a flow of lubricant through the lubrication circuit. A controller controls operation of the valve to vary the flow of lubricant based on the engine operating condition to maintain lubricant flow within predefined operating limits.
    Type: Application
    Filed: October 2, 2019
    Publication date: February 6, 2020
    Inventors: Paul H. Dolman, Michael E. McCune
  • Publication number: 20200040769
    Abstract: Shrouds and shroud segments for gas turbine engines are provided. In one embodiment, a shroud segment for a gas turbine engine having a rotor blade stage and a nozzle stage is provided. The shroud segment comprises a forward end defining an outer wall of the rotor blade stage and an aft end defining an outer wall of the nozzle stage. The aft end defines at least a portion of an opening therethrough for receipt of a nozzle, and the forward end and the aft end form a single, continuous component. In another embodiment, a gas turbine engine is provided, having a shroud with a forward end positioned near a leading edge of a plurality of rotor blades of a rotor blade stage and an aft end positioned near a trailing edge of a plurality of nozzles of a nozzle stage. Methods of assembling a gas turbine engine also are provided.
    Type: Application
    Filed: October 4, 2019
    Publication date: February 6, 2020
    Inventors: Kirk Douglas Gallier, Charles William Craig, III
  • Publication number: 20200040770
    Abstract: In one embodiment, a plant control apparatus controls a power plant, which includes a gas turbine, a generator driven by the gas turbine, an exhaust heat recovering boiler to generate first steam using heat of exhaust gas from the gas turbine, a steam turbine driven by the first steam, and a clutch to connect a first shaft connected to the gas turbine and generator with a second shaft connected to the steam turbine. The apparatus includes a starting module to start the gas turbine and generator while holding the steam turbine in a stop state, when the clutch is in a released state. The apparatus further includes a warming module to warm the steam turbine by supplying second steam from equipment different from the boiler to the steam turbine in parallel with the starting of the gas turbine and generator, when the clutch is in a released state.
    Type: Application
    Filed: April 25, 2019
    Publication date: February 6, 2020
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Kanako Nagayama, Masayuki Tobo, Yuta Iwata, Shoji Kaneko, Takahiro Mori
  • Publication number: 20200040771
    Abstract: In an apparatus for converting thermal energy from a heat source into mechanical energy by means of a thermodynamic cycle using a working medium which is guided in the cycle and in that context experiences a changing pressure, wherein a saturated steam temperature value of the working medium is associated with the respective pressure, and an expansion device for expanding the working medium from an elevated pressure to a lower pressure, wherein after expansion to the lower pressure the working medium has a waste steam temperature, there is provided an adjustment device for setting the waste steam temperature to a defined waste steam temperature value above the saturated steam temperature value associated with the lower pressure.
    Type: Application
    Filed: February 22, 2018
    Publication date: February 6, 2020
    Inventor: Arthur Flück
  • Publication number: 20200040772
    Abstract: A method of heat recovery from a Natural Gas Liquid (NGL) fractionation plant for generating power and sub-ambient cooling, the method including heating a buffer fluid in a heat exchanger with heat from the NGL fractionation plant, and generating power and sub-ambient cooling via a sub-system having a power turbine with heat from the buffer fluid.
    Type: Application
    Filed: October 9, 2019
    Publication date: February 6, 2020
    Applicant: Saudi Arabian Oil Company
    Inventors: Mahmoud Bahy Mahmoud Noureldin, Akram Hamed Mohamed Kamel
  • Publication number: 20200040773
    Abstract: A method of recovering heat from a Natural Gas Liquid (NGL) fractionation plant for production of potable water. The method includes heating a buffer fluid via a heat exchanger in the NGL fractionation plant to transfer heat from the NGL fractionation plant to the buffer fluid. The method includes heating feed water with the buffer fluid discharged from the heat exchanger for production of potable water via a multi-effect-distillation (MED) system. The method may include producing potable water with heat from the buffer fluid in the MED system.
    Type: Application
    Filed: October 11, 2019
    Publication date: February 6, 2020
    Inventors: Mahmoud Bahy Mahmoud Noureldin, Akram Hamed Mohamed Kamel
  • Publication number: 20200040774
    Abstract: A four-stroke internal combustion engine is disclosed. A camshaft and a crankshaft if the engine are synchronized to rotate at a same rotational speed. A first linkage arrangement is configured to change the motion of an exhaust valve head. A second linkage arrangement is configured to change the motion of the intake valve head. A control unit is configured for controlling the first linkage arrangement to selectively prevent the motion of the exhaust valve head and for controlling the second linkage arrangement to selectively prevent the motion of the intake valve head.
    Type: Application
    Filed: March 27, 2018
    Publication date: February 6, 2020
    Applicant: Scania CV AB
    Inventors: Andreas DAHL, Eric OLOFSSON
  • Publication number: 20200040775
    Abstract: A valve train assembly includes: at least one dual body rocker arm having a first body, a second body, a latching arrangement for latching and unlatching the first body and the second body, the latching arrangement having a latching pin that is biased to an unlatched configuration; and an actuator arrangement for controlling the latching arrangement, the actuator arrangement being able to contact the latching arrangement to cause the latching pin to be moved into a latched configuration in which it latches the first and second bodies together. In use, movement of the rocker arm under action of a cam to cause a valve event moves the actuator arrangement out of contact with the latching arrangement while a contact force between the latching pin and one or other of the first and second bodies maintains the latching pin in the latched configuration.
    Type: Application
    Filed: October 24, 2017
    Publication date: February 6, 2020
    Inventors: Emanuele RAIMONDI, Nicola ANDRISANI, Alessio LORENZON
  • Publication number: 20200040776
    Abstract: An internal combustion engine includes a cam-actuated rocker arm assembly with a solenoid-actuated latch that provides for cylinder deactivation or variable valve actuation. The solenoid is in a position where its inductance varies significantly in relation to the position of a latch pin as it translates between latching and non-latching configurations. A sensor is positioned to monitor a current or a voltage in a circuit that includes the solenoid. The sensor data is analyzed to provide diagnostic information relating to the operation of the rocker arm assembly.
    Type: Application
    Filed: August 4, 2019
    Publication date: February 6, 2020
    Applicant: Eaton Intelligent Power Limited
    Inventors: James Edward McCarthy, JR., Mark Allan Juds, Douglas Anthony Hughes, Nicholas Peter Gillette, Matthew Richard Busdiecker
  • Publication number: 20200040777
    Abstract: An exhaust valve rocker arm assembly selectively opening first and second exhaust valves includes an exhaust rocker arm, an engagement capsule, a valve bridge operably associated with the rocker arm and including a main body, and a hydraulic actuator assembly disposed at least partially within an aperture formed within the main body. The hydraulic actuator assembly includes a first piston body and a second piston body disposed at least partially within the aperture formed in the main body. The exhaust rocker arm is configured to engage the valve bridge main body to engage the first exhaust valve, and the engagement capsule is configured to engage the hydraulic actuator to engage the second exhaust valve.
    Type: Application
    Filed: October 9, 2019
    Publication date: February 6, 2020
    Applicant: Eaton Intelligent Power Limited
    Inventors: Douglas J. Nielsen, James E. McCarthy, JR.
  • Publication number: 20200040778
    Abstract: A driving rotor is rotational about a rotational shaft center in conjunction with a crankshaft. A driven rotor is rotational about the rotational shaft center in conjunction with the camshaft. A deceleration mechanism is configured to change a relative rotational phase between the driving rotor and the driven rotor by using a driving force of an electric motor. The deceleration mechanism includes an internal gear portion, which includes an internal tooth formed inward in a radial direction, and an external gear portion, which includes an external tooth formed outward in a radial direction and engages with the internal tooth. A linear expansion coefficient of the external gear portion is larger than a linear expansion coefficient of the internal gear portion.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Inventors: Soichi KINOUCHI, Akira IWASAKI
  • Publication number: 20200040779
    Abstract: A bearing supporting an end of a layshaft in an internal combustion engine is lubricated by injection of oil through a flange that mounts the layshaft on the engine. A pressure responsive flow control valve controls delivery of oil through the flange to the bearing. A backflow prevention adapter prevents backflow of oil to the engine's oil pump.
    Type: Application
    Filed: October 12, 2019
    Publication date: February 6, 2020
    Inventor: Miguel Alfonso POTOLICCHIO
  • Publication number: 20200040780
    Abstract: An internal combustion engine includes a crankshaft that is rotatably supported on the crankcase, a cylinder block that is joined to the crankcase and defines a plurality of cylinders in a V-type arrangement in which the cylinders are disposed above a virtual horizontal plane including a rotational axis of the crankshaft and intersect each other at a bank angle, a to-be-detected body that rotates integrally with the crankshaft, and a detection sensor that is mounted from an outside at a position, lower than the virtual horizontal plane, of a front face of the crankcase that receives air flow, is made to face a trajectory of the to-be-detected body, and generates a pulse signal in response to movement of the to-be-detected body. Thereby provided is a structure for disposing a detection sensor that can detect the angular velocity of a crankshaft with high precision in a so-called V-type internal combustion engine.
    Type: Application
    Filed: February 8, 2018
    Publication date: February 6, 2020
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Yoshiyuki IKEBE, Makoto HARADA, Fumihiko MATSUBARA, Toshiaki DEGUCHI
  • Publication number: 20200040781
    Abstract: An apparatus configured to control fluid distribution in a fluid circulation system. The fluid circulation system is coupled to a fluid container that includes a fluid supply port configured to couple to a fluid supply line of the fluid circulation system, a fluid return port configured to couple to a fluid return line of the fluid circulation system, and a breather port. The apparatus is configured to cause fluid to flow into the fluid container from the fluid circulation system while inhibiting outflow of the fluid from the replaceable fluid container into the fluid circulation system, so as to collect the fluid in the replaceable fluid container, and to cause a gas to flow from the replaceable fluid container through the breather port while inhibiting outflow of the fluid from the replaceable fluid container into the fluid circulation system.
    Type: Application
    Filed: October 8, 2019
    Publication date: February 6, 2020
    Inventors: Steven Paul Goodier, Oliver Paul Taylor, Michael Baker, John Gamston, Krishan Arora
  • Publication number: 20200040782
    Abstract: Methods and systems are provided for a ducted plenum of a positive crankcase ventilation system for an engine. In one example, the ducted plenum may include a plurality of ducts coupled to a central chamber and an oil separator and valve arranged downstream of the central chamber. The ducted plenum may vent gases from an engine crankcase and deliver the vented gases to the engine intake system.
    Type: Application
    Filed: July 31, 2018
    Publication date: February 6, 2020
    Inventors: Matthew Dunn, Paul Shoemaker, Darren Sipila
  • Publication number: 20200040783
    Abstract: An exhaust system for the aftertreatment of exhaust gases of an internal combustion engine, having, in series as viewed in a flow direction of the exhaust gas, a catalyst for the oxidation of the exhaust gas and/or a catalyst for storing nitrogen oxides, having an introduction point for the feed of a reducing agent, having an SCR catalyst for the selective catalytic reduction of nitrogen oxides, and having a particle filter, wherein the particle filter is arranged downstream of the SCR catalyst in the flow direction, and a second SCR catalyst and/or an ammonia slippage catalyst is arranged downstream of the particle filter in the flow direction.
    Type: Application
    Filed: October 11, 2019
    Publication date: February 6, 2020
    Applicant: Vitesco Technologies GmbH
    Inventor: Rolf Brück
  • Publication number: 20200040784
    Abstract: The invention relates to a method for the exhaust aftertreatment of an internal combustion engine, which on the outlet side is connected to an exhaust gas system. Provided in the exhaust gas system is at least one exhaust aftertreatment component with which, upon reaching the light-off temperature of this exhaust aftertreatment component, the gaseous limited exhaust gas components may be converted into unlimited exhaust gas components. An introduction point is provided at an exhaust duct of the exhaust gas system, at which a hot gas, in particular an exhaust gas of an exhaust gas burner, is introduced into the exhaust duct. The hot gas mixes with the exhaust gas of the internal combustion engine in such a way that a hot mixed gas results in which the unburned exhaust gas components are oxidized to unlimited exhaust gas components, without a catalytically active surface.
    Type: Application
    Filed: July 29, 2019
    Publication date: February 6, 2020
    Applicant: VOLKSWAGEN AKTIENGESELLSCHAFT
    Inventors: Falk-Christian Baron Von Ceumern-Lindenstjerna, Stefan Paukner, Michael Alexander Manz, Michael Kaack, Jens Gockel
  • Publication number: 20200040785
    Abstract: A urea injection control method in an exhaust after-treatment system includes: performing an ammonia slip prevention logic that adjusts a urea injection amount based on the highest temperature during a predetermined period of time from an end point of filter regeneration to a thermal equilibrium point when a temperature of a selective catalytic reduction (SCR) catalyst is higher than or equal to a predetermined threshold temperature at the end point of the filter regeneration; and adjusting a urea injection amount based on an ammonia storage amount map when the temperature of the SCR catalyst is lower than or equal to the predetermined threshold temperature at the end point of the filter regeneration. In particular, the thermal equilibrium point is a point at which a temperature of a filter is close or equal to an exhaust gas temperature.
    Type: Application
    Filed: November 15, 2018
    Publication date: February 6, 2020
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventor: Yoon Sung CHOI
  • Publication number: 20200040786
    Abstract: A process for optimizing a depollution of nitrogen oxides from the gases in an engine exhaust line carried out according to a selective catalytic reduction by injection of a quantity of reducing agent into the line makes it possible to monitor a setpoint of the amount of nitrogen oxides per second at the outlet of the line. A readjustment of the setpoint is made at each completion of successive running distance intervals determined by integration of the speed over a time interval that ends as soon as a predetermined target cumulative amount of carbon dioxide released is reached, an amount of nitrogen oxides at the outlet per kilometer traveled being calculated for each interval from a cumulative amount of nitrogen oxides measured at the outlet and compared with a target amount of nitrogen oxides per kilometer for the calculation of a deviation used for the readjustment of the setpoint.
    Type: Application
    Filed: November 24, 2017
    Publication date: February 6, 2020
    Applicants: Continental Automotive France, Continental Automotive GmbH
    Inventor: Steven MAERTENS
  • Publication number: 20200040787
    Abstract: Various embodiments include a method for monitoring the tank content of a storage tank comprising: metering a fluid from the tank into the exhaust gas tract, wherein the fluid has a concentration with respect to a reducing agent; acquiring a current concentration value for the reducing agent; calculating a change in concentration of the reducing agent on the basis of the current concentration value in comparison with a stored concentration value; determining a current operating state of the vehicle to identify an operating state in which refueling cannot be carried out; and carrying out a plausibility check of the calculated change in concentration if the calculated change in concentration exceeds a predetermined threshold value and the operating state is identified. The plausibility check includes acquiring the current tank filling level of the fluid.
    Type: Application
    Filed: August 10, 2017
    Publication date: February 6, 2020
    Applicant: CPT Group GmbH
    Inventor: Martin Brandt
  • Publication number: 20200040788
    Abstract: A variety of methods and arrangements for controlling the exhaust gas temperature of a lean burn, skip fire controlled internal combustion engine are described. In one aspect, an engine controller includes an aftertreatment system monitor and a firing timing determination unit. The aftertreatment monitor obtains data relating to a temperature of one or more aftertreatment elements, such as a catalytic converter. Based at least partly on this data, the firing timing determination unit generates a firing sequence for operating the engine in a skip fire manner such that the temperature of the aftertreatment element is controlled within its effective operating range.
    Type: Application
    Filed: October 16, 2019
    Publication date: February 6, 2020
    Inventors: Matthew A. YOUNKINS, Shikui Kevin CHEN, Mark A. WILCUTTS